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WO2010117811A2 - Matériau de blindage de protection - Google Patents

Matériau de blindage de protection Download PDF

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Publication number
WO2010117811A2
WO2010117811A2 PCT/US2010/029254 US2010029254W WO2010117811A2 WO 2010117811 A2 WO2010117811 A2 WO 2010117811A2 US 2010029254 W US2010029254 W US 2010029254W WO 2010117811 A2 WO2010117811 A2 WO 2010117811A2
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
ballistics
armor
layers
shield material
Prior art date
Application number
PCT/US2010/029254
Other languages
English (en)
Other versions
WO2010117811A3 (fr
Inventor
Robert Braiewa
Rengan Kannabiran
Kyle Parent
Davitt Cunningham
Jian Ling Ding
Original Assignee
Scapa Tapes N.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scapa Tapes N.A. filed Critical Scapa Tapes N.A.
Publication of WO2010117811A2 publication Critical patent/WO2010117811A2/fr
Publication of WO2010117811A3 publication Critical patent/WO2010117811A3/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2477/00—Presence of polyamide

Definitions

  • This disclosure concerns protective shield material.
  • body armor which can include hard and soft armor.
  • Hard armor can be made strong, but is more rigid for some applications, whereas soft armor is generally weaker than hard armor, but may have other benefits.
  • An objective of this disclosure is to provide a shield product which has the benefits of both such armors and thereby provide an effective shield material.
  • the shield material structure has an outward side and an inner side.
  • the armor structure is formed from a high tensile strength fabric material, for instance a KEVLARTM like material.
  • the material can be a high tensile material scrim bonded together with a heat seal or epoxy or other adhesive and for use as body armor so as to reduce trauma from ballistic impact.
  • M I C RO LAMTM is a scrim that can be with a chopped fiber lay-up composite or with KEVLARTM bonded together with heat seal adhesive for trauma reduction in a protective vest.
  • the materials form a product which includes the adhesive as a composite blend of soft and hard areas within adhesive layer.
  • the adhesive may have a backing or embedded layers between the adhesive layers consisting of shock absorbing materials such as foam, gels or porous laminates.
  • the structure of the foam could include PU, PVC, Acrylic, Silicone, PE or microsphere filled thermoplastic foams.
  • the films could be PU, PE, etc.
  • the structure may be simply a heat seal or transfer adhesive consisting of hard and soft regions. These regions are created during by combination of material cure as well as adding particles that could act as hard or soft regions.
  • the structure of the vest including the weave, the angle of weave and denier and layers of high tensile material, such as KEVLARTM enhance the performance of the shield material.
  • acrylic foam or other visco elastic or energy dissipative structures such as foams or layered porous film structures is bonded with adhesive for the body armor, as materials in protective armor.
  • the shield may be without foam or film or damping elements.
  • Acrylic foam with nitrile phenolic adhesive as a tape product, a film or intermediate layer can be used.
  • thermosetting adhesive there is also an adhesive material such as a tape which may be activatable adhesive, typically for instance, a thermosetting adhesive.
  • the thermoplastic adhesives consists of polyolefin, polyamide, polyester or copolymers containing elastomers and thermoplastic segments etc. or could be a blend of these polymers.
  • the thermosetting materials include epoxides, urethanes, cyanate esters, bismaleimides, phenolics, including nitrile phenolics, and any combinations thereof. Suitable nitrile phenolic materials include those made by including butadiene-nitrile elastomers in phenolic resin-based materials.
  • the shield material permits for an armor structure sufficiently strong to defeat rifle fire or NIJ ballistic testing protocol.
  • FIG. 1 is a schematic sectional view of one example of an armor structure.
  • FIG. 2 is a schematic sectional view of another example of an armor structure.
  • FIG. 3 is a schematic sectional view of another example of an armor structure.
  • FIG. 4 is a graph showing the rheological characteristics of various adhesives.
  • a lightweight protective shield material for a vest, body armor, panel or element is for resisting ballistic impacts from bullets, shrapnel, and like objects.
  • These shields and armor elements possess an effective stiffness and favorable strength-to-weight ratios, and for resisting destruction and penetration by ballistic objects such as bullets and shrapnel, or for resisting deformation from high force/low speed attack by objects such as battering rams, knives, cutting tools, and pry-bars.
  • a flexible, high-tensile strength fabric may be a woven or non-woven material, preferably made of a high-tensile fiber material such as aramid fiber, ultrahigh molecular weight polyethylene fiber, or PBO fiber.
  • a high-tensile fiber material such as aramid fiber, ultrahigh molecular weight polyethylene fiber, or PBO fiber.
  • Each of the sheets of flexible, high-tensile strength fabric should have a tensile breaking strength not less than about 100 pounds per inch of fabric width for every ounce per square yard of material.
  • a ballistics shield material comprises an armor structure formed from an armor material components.
  • the armor structure is substantially imperforable by armor-piercing fire; and the armor structure comprises at least multiple layers of high tensile material layers such as para-aramid fabric.
  • An adhesive material for bonding components together is used, and the adhesive material comprises an activatable adhesive.
  • the shield can also include a visco elastic foam, for instance an acrylic foam bonded with adhesive.
  • the visco elastic damping material composition consists of typically polymeric materials in the form of foam, sheet or porous structures containing acrylic, polyurethane, plasticized PVC, silicone, polyethylene, copolymers of vinyl acetate or elastomers.
  • the heat activatable adhesives can be thermoplastic adhesives and thermosetting adhesives.
  • thermoplastic adhesives include polyolefin based adhesives, polyester type, polyamide type etc, and any of those that come from blending of those adhesive materials.
  • the thermosetting adhesives include epoxides, urethanes, cyanate esters, bismaleimides, phenolics, including nitrile phenolics, and any combinations thereof.
  • Suitable nitrile phenolic adhesives include those made by including butadiene-nitrile elastomers in phenolic resin-based materials.
  • the ballistics shield material can have a visco elastic foam like material, for instance an acrylic foam bonded with nitrile phenolic adhesive.
  • a ballistics shield material which comprises an armor structure formed from an armor material components.
  • the armor structure is substantially imperforable by armor-piercing fire; and the armor structure comprises at least multiple layers of high tensile material layers of para- aramid fabric.
  • the adhesive material comprises opposite first and second major sides, each of the first and second major sides having an adhesive layer.
  • the adhesive layers define adhesive surfaces on both major sides of the adhesive material, and each of the adhesive layers and (i) the pressure sensitive adhesive comprises a pressure sensitive adhesive, (ii) an activatable adhesive comprises an epoxy resin, or both (i) and (ii).
  • FIG. 1 illustrates an armor structure 100 which comprises a layered construction of a first section 110, second section 120 and third section 130.
  • the armor structure 100 is configured to be worn, mounted or otherwise used such that the first section 1 10 is located closest to a threat (e.g., incoming gunfire) and the third section 130 is located closest to the wearer, vehicle, aircraft, building, etc. to be protected by the armor structure 100.
  • a threat e.g., incoming gunfire
  • the first, second and third sections 110, 120, 130 is formed from an armor material.
  • the first section 110 comprises an aramid, for instance such as ZYLON TM, namely PBO (poly(p-phenylene-2,6- benzobisoxazole)) material or fabric
  • the second section 120 comprises KEVLARTM or other high tensile material which can be a para-aramid material or fabric formed such a material.
  • the third section 130 can be KEVLARTM.
  • any one or more of the first, second and third sections 1 10, 120, 130 may comprise woven aramid, for instance ZYLON TM or woven KEVLARTM, or multiple layers of woven aramid, for instance ZYLON TM or woven KEVLARTM .
  • the first section 1 10 includes multiple layers of an aramid, for instance ZYLON-530 (i.e., ZYLON TM similar to style no. 530 available from Hexcel Schwebel of Anderson, S. C), the second section 120 includes multiple layers of KEVLAR-704 (i.e., KEVLARTM similar to style no. 704 available from Hexcel Schwebel), and the third section 130 comprises multiple layers of KEVLAR-726 (i.e., KEVLARTM similar to style no. 726 available from Hexcel Schwebel).
  • the layers of the third section 130 may be laminated to improve resistance to deformation.
  • the first section 110 comprises multiple layers of an aramid, for instance ZYLON-530
  • the second section 120 comprises multiple layers of KEVLAR-704
  • the third section 130 comprises multiple layers of KEVLAR-726.
  • one or more layers of soft armor material other than an aramid for instance ZYLON-530, KEVLAR-704 and KEVLAR-726 may be employed in the first, second or third layers 1 10, 120, 130, respectively, in addition to the layers specified above.
  • nitrile phenolic based bondable layers are commercially available in film form include those available from Scapa North America (Scapa), Windsor, Connecticut, USA, under the trade name of H153U, H212U and H193U.
  • An example foam material is VHB 4910 which a clear acrylic foam tape having an average tape thickness of 1.10 mm and a red film liner with a thickness of 0.08 mm.
  • the foam density averages 960 kg/nn 3 .
  • the 90 degree peel adhesion to steel at RT with 72 hr dwell time has a common value of 26 N/10 mm.
  • An example foam material is Scapa AS1179W which an acrylic foam tape having an average tape thickness of 1.1 mm and a red film.
  • the foam density averages 860 kg/m 3 .
  • the 90 degree peel adhesion to steel at RT with 72 hr dwell time has a common value of 50 N/25 mm.
  • the second acrylic foam material is Scapa AS1 130TP, which is a clear acrylic foam tape having an average tape thickness of 0.6 mm.
  • the foam density averages 860 kg/m 3 .
  • the 90 degree peel adhesion to steel at RT with 72 hr dwell time has a common value of 60 N/25 mm.
  • the third acrylic foam material is Scapa AS1 179GHS, which is a grey acrylic foam tape with a pressure sensitive adhesive on one side and a heat activatable adhesive on the other side of the foam core layer. It has 1.1 mm total thickness and foam density around 850 kg/m 3 .
  • Polyurethane (PU) foam material is Scapa 3909 adhesive tape with acrylic pressure sensitive adhesive coated on one side of the PU foam. It has 2 mm thickness and 10 N/25mm Peel Adhesion under 10 minute dwell and 180 degree per Scapa Test Method F10.
  • Polyvinyl Chloride (PVC) foam material is Scapa 3509 adhesive tape with acrylic pressure sensitive adhesive coated on one side of an elastic PVC foam. It has 1.5 mm thickness and 5 N/25mm Peel Adhesion under 10 minute dwell and 180 degree per Scapa Test Method F10.
  • Elastic EVA foam material is Scapa SA416V that is an adhesive tape have an elastic EVA foam.
  • the EVA foam is two-side coated with acrylic adhesive.
  • SA416V has 1.6 mm thickness and 15 N/25 mm Peel Adhesion under 10 minute dwell and 180 degree per Scapa Test Method F10.
  • Silicone based elastic materials include RTV silicone materials, foamed silicone materials and adhesives.
  • Scapa RX1267P is a silicone pressure sensitive adhesive coated on elastic polyester film in total thickness of 0.2 mm. The silicone adhesive side provides 1 N/25 mm Peel Adhesion under 1 minute dwell and 180 degree per Scapa Test Method F10.
  • FIG. 2 depicts another example of an armor structure 200 which comprises a layered construction of a first section 210 and a second section 220.
  • the armor structure 200 is configured to be worn, mounted or otherwise employed such that the first section 210 is located closest to a threat (e.g., incoming gunfire) and the second section 220 is located closest to the wearer, vehicle, aircraft, building, etc. to be protected by the armor structure 200.
  • a threat e.g., incoming gunfire
  • both of the first and second sections 210, 220 are formed from soft armor material.
  • the first section 210 comprises an aramid, for instance ZYLON TM and the second section 220 comprises KEVLARTM .
  • one or both of the first and second sections 210, 220 may comprise woven ZYLON TM or woven KEVLARTM, or multiple layers of woven aramid, for instance ZYLON TM or woven KEVLARTM .
  • the first section 210 comprises multiple layers of an aramid, for instance ZYLON-530 and the second section 220 comprises multiple layers of KEVLAR-726.
  • the layers of the second section 220 may be laminated to improve resistance to deformation.
  • the first section 210 comprises multiple layers of an aramid, for instance ZYLON-530
  • the second section 220 comprises multiple layers of KEVLAR-726.
  • one or more layers of armor material other than an aramid, for instance ZYLON-530 or KEVLAR-726 may be employed in the first or second layers 210, 220, respectively.
  • FIG. 3 depicts another example of an armor structure 300 which comprises a first armor structure comprising any of the examples of the armor structure 100, positioned adjacent a second armor substructure comprising any of the examples disclosed herein of the armor structure 200.
  • the various examples of the armor structure 300 defeat handgun fire and various threats as discussed above, and achieve NIJ type IHa protection.
  • the first section can include an aramid, for instance ZYLON and the second section 620 can includes SPECTRASHIELD PLUSTM, namely ultra-high molecular weight polyethylene or fabric.
  • the first and second sections can include comprise woven aramid, for instance ZYLONTM or woven SPECTRASHIELD PLUSTM, or multiple layers of woven aramid, for instance ZYLONTM or woven SPECTRASHIELD PLUSTM.
  • SPECTRASHIELD PLUS-902 i.e., SPECTRASHIELD PLUS similar to style no. 902 available from Hexcel Schwebel of Anderson, S. C, or from Honeywell Corp. of Morristown, NJ).
  • the first section 610 comprises 100 or more layers of an aramid, for instance ZYLON- 530
  • the second section 220 comprises 135 or more layers of SPECTRASHIELD PLUS-902.
  • one or more layers of armor material other than an aramid, for instance ZYLON-530 or SPECTRASHIELD PLUS-902 may be employed in the first or second layers 610, 620, respectively, in addition to the layers specified above.
  • any of the examples of the soft armor structures 100, 200, and 300 may be employed to construct any of a variety of armored equipment.
  • the disclosed armor structures may be employed to construct soft body armor, such as a bulletproof vest.
  • a vest can be entirely constructed from one or a combination of the armor structures, providing ballistic protection of a given type that "wraps" completely around a torso of a wearer.
  • Any of the armor structures 100, 200, 300 may also be employed to form armor panels for use in vehicles, either on or against the vehicle "skin” or in critical locations like seats, cockpits, fuel tanks, hydraulic lines, ammunition stores, helmets or armor panels for buildings.
  • the armor structures and/or armored articles may have each of the layers of armor material laser-cut into the desired perimeter shape.
  • the layers can be cut individually or in groups of 2 or more. Laser cutting has proven advantageous in that it prevents fraying of woven armor materials as the laser heat tends to "heat-seal" the edges of the cut material.
  • adhesive tape such as a polymer tape, can be used over some or all of the perimeter edges of the "sandwich" of layers. The tape can be stitched to the layers.
  • ZYLON-530 SPECIFICATIONS Yarn Type Warp Yarn Zylon AS, 500 denier Fill Yarn Zylon AS, 500 denier Fabric Weight 4.00 oz/yd.2 136 g/m 2 Weave Style Plain Nominal Construction Warp Count 30 (yarns/inch) Fill Count 30 Fabric Thickness 8.0 mils 0.20 mm Breaking Strength 1080 Ibf/in 1020 Ibf/in.
  • KEVLAR-704 SPECIFICATIONS Yarn Type Warp Yarn Kevlar 129, 840 denier Fill Yarn Kevlar 129, 840 denier Fabric Weight 7.0 oz/yd 2 237 g/m 2 Weave Style Plain Nominal Construction Warp Count 31 (yarns/inch) Fill Count 31 Fabric Thickness 12.0 mils 0.3 mm Breaking Strength 900 Ibf/in 950 Ibf/in.
  • KEVLAR-724 SPECIFICATIONS Yarn Type Warp Yarn Kevlar 129, 1000 denier Fill Yarn Kevlar 129, 1000 denier Fabric Weight 6.5 oz/yd 2 220 g/m 2 Weave Style Plain Nominal Construction Warp Count 24 (yarns/inch) Fill Count 24 Fabric Thickness 1 1.0 mils 0.28 mm Breaking Strength 763 Ibf/in 776 Ibf/in.
  • KEVLAR-726 SPECIFICATIONS Yarn Type Warp Yarn Kevlar 129, 840 denier Fill Yarn Kevlar 129, 840 denier Fabric Weight 6.0 oz/yd 2 203 g/m 2 Weave Style Plain Nominal Construction Warp Count 26 (yarns/inch) Fill Count 26 Fabric Thickness 10.0 mils 0.25 mm Breaking Strength 760 Ibf/in 770 Ibf/in.
  • SPECTRASHIELD PLUS-902 SPECIFICATIONS Yarn Type Warp Yarn Spectra 900, 1200 denier Fill Yarn Spectra 900, 1200 denier Fabric Weight 5.5 oz/yd 2 187 g/m 2 Weave Style Plain Nominal Construction Warp Count 17 (yarns/inch) Fill Count 17 Fabric Thickness 18.0 mils 0.46 mm Breaking Strength 900 Ibf/in 850 Ibf/in.
  • the shield also uses an adhesive tape or film 140, 150, 230 and 330 which is used is a barrier layer.
  • the barrier layer may be non-perforated, namely extend as a continuous layer throughout the adhesive tape or may be perforated, namely extend discontinuously along one or both orthogonal axes that are parallel to the major surface of the adhesive tape or film.
  • a pressure sensitive adhesive can provide a tacky surface so that the tape or film can adhere two components together by application of pressure.
  • the pressure sensitive adhesive will be tacky and capable of adhering components together in a temperature range of 5 to 200 degrees C, typically between 10 and 150 degrees C.
  • An activatable adhesive when activated will provide the final bond strength of the components that are bonded together by the adhesive tape. During activation, there may be an overlap in properties where the pressure sensitive adhesive is decreasing in strength due to activation by for example an increasing temperature and the activatable adhesive is increasing in strength.
  • the adhesive can be a nitrile phenolic, epoxy, polyurethane, polyamide, polybutadiene type polymer (thermoplastic or thermoset), or combinations thereof.
  • the adhesive consists of hard and soft polymeric regions. These regions are set depending on the desired rheological or flow characteristics of the adhesive at short and long durations of stress or impact under different temperature conditions.
  • the adhesive is a nitrile phenolic having regions of hard phenolic and soft nitrile rubber.
  • the hard and soft polymeric region of the adhesive can be compatibilized to be a single phase.
  • the rheology of the adhesive is such that at the time of assembly, the adhesive will be fluid enough under minimal heat to allow adequate bonding to the surface.
  • the adhesive can be post cured by application of heat after the bonding process to improve the rigidity.
  • the activation temperature of the curing process can be adjusted to lower temperatures for easy application.
  • An example of the rheological characteristics of various embodiments of adhesives are shown in Fig. 4.
  • the adhesive can be relatively non-tacky or low tack at room temperature handling conditions. This allows the adhesive to be in the form of a sheet that can be easily applied in a continuous process.
  • the adhesive can be combined with various other types of fiber elements or cloth combinations.
  • the multi-layers and multi-regions created from these combinations provide a range of flexible and rigid structures that can be used in various other applications.
  • the multi-layer combination of the adhesive with cloth materials can be used in wearable clothing, where flexibility is most important.
  • the multi-layer combination of the adhesive and other materials can also be used in a physical structure such as structural partition, where rigidity is most important.
  • the adhesive by itself or in combination with fiber elements can be designed to provide products that can be washed and/or handled in different environments.
  • the adhesive may have resistance to diesel and other fluids/solvents when soaked for a finite time.
  • Both major sides of the adhesive tape or film can have an adhesive surface defined by an adhesive layer of the domains of pressure sensitive adhesive and activatable adhesive.
  • the configuration, shape, size and arrangement of the adhesive domains need not be the same on both major sides of the adhesive tape although for convenience in the manufacturing of the adhesive tape, the adhesive surfaces on both major sides should be designed in the same way.
  • the thickness of the adhesive layer 140, 150, 230 and 330 is generally between 0.1 mm and 2.0 mm, preferably between 0.3 mm and 1 .0 mm.
  • the domains of pressure sensitive adhesive and activatable adhesive composition may be of the same thickness or different thickness.
  • the material is a 16-ounce fabric layers 1 10, 120, 130, 210, 220 should have a breaking strength not less than 1600 pounds. There should multiple sheets of high-strength fabric.
  • the panel or element is preferably not less than 0.25 inches thick, and not greater than 2 inches thick.
  • the sheets of thermal-fusible film adhesive 140, 150, 230 and 330 may be made of an ionic copolymer, epoxy, polyurethane, or other thermoplastic material.
  • the thermal-fusible film adhesive is used in a quantity sufficient to consolidate the panel and provide good structural strength and fatigue resistance, without sacrificing the ballistic resistance provided by the sheets of high-tensile strength fabric.
  • a cushioning material may be selected from an aramid material, a polyurethane foam material, or other cushioning materials.
  • the sheet of cushioning material for instance could have a density not less than 3 pounds per cubic foot to a substantially higher level density.
  • the structure provides structural strength to assist in flattening ballistic projectiles, thereby improving the ballistic resistance of the panel.
  • Suitable materials include unidirectional glass fibers or fiberglass woven materials impregnated with a phenolic resin. These are preferably not less than 0.01 inches thick, and not greater than 0.10 inches thick.
  • the tensile strength is 40,000 pounds per square inch, or higher.
  • Fabric layers 1 10, 120, 130, 210, 220 may be any suitable high-tensile strength fabric such as are known for making ballistic resistant vests and the like.
  • aramid fibers such as KEVLARTM
  • fabrics made from ultrahigh molecular weight polyethylene fibers such as SpectraTM and Dyneema
  • PBO polyphehylenebenzobisoxazole
  • Suitable aramid fabrics for layers 1 10, 120, 130, 210, 220 include, but are not limited to: Kevlar KM-2, 850 denier, 31 count plain weave style 705, 6.8 oz/yd 2 (breaking strength 880 Ibf/in); Kevlar 29, 3000 denier, 17 count plain weave style 745, 14.0 oz/yd 2 (breaking strength 1600 Ibf/in); and Kevlar. 29, 3000 denier, 21 count 4 x 4 basket weave style 755, 16.5 oz/yd 2 (breaking strength 2000 Ibf/in). These and similar high-tensile strength fabrics are available from numerous commercial vendors as known in the art.
  • the number of layers 110, 120, 130, 210, 220 of high-tensile fabric material should be selected in proportion to the weight, breaking strength, and dynamic performance of the individual layers. For example, layers of 2000 Ibf/in fabric would provide comparable ballistic resistance to several layers of 1600 Ibf/in fabric or to several layers of 880 Ibf/in fabric.
  • the adhesive for adhering fabric layers together within body armor element or panel should be selected to permit flexure of the fabric layers when struck by a ballistic object, without failure of the adhesive layers.
  • the matrix of fabric layers 1 10, 120, 130, 210, 220 and adhesive layers should be flexible and resilient to enable the fabric to deform and flex upon impact, thereby dissipating the kinetic energy of the projectile.
  • thermal-fusible materials may be used for film adhesive, including thermal-fusible ionic copolymer (ionomer) film, SurlynTM lonomers are ethylene acid copolymers, in which the acid groups are partially neutralized with either zinc or sodium ions. Ionic bonding between the polymer chains provides outstanding melt strength and toughness, which are particularly desirable properties for laminating the layers of high-tensile strength fabric.
  • ionomer thermal-fusible ionic copolymer
  • SurlynTM lonomers are ethylene acid copolymers, in which the acid groups are partially neutralized with either zinc or sodium ions. Ionic bonding between the polymer chains provides outstanding melt strength and toughness, which are particularly desirable properties for laminating the layers of high-tensile strength fabric.
  • Other high-strength, flexible thermoplastic, thermoset, or epoxy adhesives are also suitable, and in particular, polyurethane materials.
  • the adhesive layer is a film having a thickness between about 0.5 and 6 mil, and all of the adhesive films are preferably selected to have the same thickness.
  • the thickness of the film layers should be selected based on the weight and thickness of the surrounding fabric layers. For example, for use with an aramid fabric having a weight of 6.8 oz/yd 2 and a thickness of 12 mil, film layer may be about 1 to 2 mil thick, and for an aramid fabric having a weight of 16.5 oz/yd 2 and a thickness of 30 mil, film layer may be about 3 to 6 mil thick.
  • the interleaved fabric 110, 120, 130, 210, 220 and film layers 140, 150, 230 and 330 in the aggregate can be about 14-27 percent ionomer resin by weight.
  • a resin content in this range permits a high degree of consolidation of the panel core, thereby achieving a high degree of structural integrity and fatigue endurance without sacrificing ballistic resistance.
  • a cushioning layer is provided adjacent to the fabric 1 10, 120, 130, 210, 220 and resin layers.
  • the cushioning layer permits internal flexure of the ballistic- resistant layers 1 10, 120, 130, 210, 220 for greater ballistic resistance while preserving the stability of the faces.
  • Suitable cushioning materials include aramid and honeycomb materials and foams.
  • the cushioning material has a density between about 3 to 8 pounds per cubic foot, and a thickness from about 0.125 to 1.75 inches.
  • the body armor can include both cushioning and fabric layers 1 10, 120, 130, 210, 220 is preferably about 0.25 to 2.0 inches thick.
  • High-tensile strength fabric layers 1 10, 120, 130, 210, 220 may be consolidated together with the film adhesive layers in an initial step. Then the consolidated fabric/film layers are consolidated with the remaining layers of the panel. The fabric layers, namely the high-tensile strength fabric 110, 120, 130, 210, 220 and film adhesive are cut to the desired panel size. If aramid (e.g., KEVLARTM fabric) is used, it should be oven dried at about 150 degrees F to remove any absorbed moisture. The desired number of layers are stacked on top of one another. A layer of release film should be placed at the top and bottom of the stack.
  • aramid e.g., KEVLARTM fabric
  • the stack may then be consolidated using a vacuum bag and oven at 275 degrees F to 300 degrees F under 12-14 psi pressure for 2-3 hours, or using a heat press at 275 degrees F to 300 degrees F under 12-40 psi pressure for 20 minutes to 1 hour.
  • the stack should be cooled down to about 120 degrees F to 150 degrees F before releasing pressure.
  • an aramid material is used for the cushioning layer, it should be oven dried as described above.
  • the stack should be surrounded by sheets of release film and placed between two sheets in a heat press.
  • the heat press should be preheated to about 275 degrees F to 300 degrees F.
  • Contact pressure of less than 3 psi should be applied for 1 to 2 minutes and the press opened. The procedure should be repeated 3 to 5 times at 1 to 2 minute intervals to release gas generated by the phenolic resin.
  • the press should then be closed and the panel consolidated at 275 degrees F to 300 degrees F under 25 to 50 psi for 1 to 2 hours.
  • the stack should then be cooled to about 120 degrees F to 150 degrees F before releasing pressure to complete the consolidation process, although the pressure may be released while the press is hot if the phenolic resin is formulated to permit "hot-in, hot- out" handling.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un matériau de protection contre les balles comprenant une structure de blindage formée de composants de matériau de blindage. La structure de blindage est sensiblement non perforable par un tir destiné à percer un blindage. La structure de blindage comprend plusieurs couches de matériau à haute résistance de tissu para-aramide, et un matériau adhésif pour coller les composants ensemble. Une mousse viscoélastique est collée à l'adhésif. La mousse peut être une mousse acrylique collée avec un adhésif phénolique nitrile.
PCT/US2010/029254 2009-04-06 2010-03-30 Matériau de blindage de protection WO2010117811A2 (fr)

Applications Claiming Priority (6)

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US16714109P 2009-04-06 2009-04-06
US61/167,141 2009-04-06
US25682809P 2009-10-30 2009-10-30
US61/256,828 2009-10-30
US12/749,035 US20120186433A1 (en) 2009-04-06 2010-03-29 Protective shield material
US12/749,035 2010-03-29

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WO2010117811A2 true WO2010117811A2 (fr) 2010-10-14
WO2010117811A3 WO2010117811A3 (fr) 2011-01-13

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WO2013124505A1 (fr) * 2012-02-23 2013-08-29 Fedur, S.A Vêtement anti-coupure et/ou anti-perforation
CN105602044A (zh) * 2016-03-14 2016-05-25 傅琳 一种装甲用材料
EP3128282A2 (fr) 2015-08-05 2017-02-08 Franco Correzzola Procédé d'assemblage d'une barrière de sécurité pour protection balistique
WO2017048790A1 (fr) 2015-09-17 2017-03-23 Honeywell International Inc. Tissus uhmwpe à haute résistance à faible porosité
CN106893264A (zh) * 2017-04-11 2017-06-27 程望舒 一种过电压保护器的压敏电阻保护套

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WO2011132187A1 (fr) * 2010-04-18 2011-10-27 Gevaram Quality Envelopes Ltd. Enveloppe inviolable
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