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SU1675110A1 - Method of producing powdered polyethylene terephtalate - Google Patents

Method of producing powdered polyethylene terephtalate Download PDF

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Publication number
SU1675110A1
SU1675110A1 SU894732613A SU4732613A SU1675110A1 SU 1675110 A1 SU1675110 A1 SU 1675110A1 SU 894732613 A SU894732613 A SU 894732613A SU 4732613 A SU4732613 A SU 4732613A SU 1675110 A1 SU1675110 A1 SU 1675110A1
Authority
SU
USSR - Soviet Union
Prior art keywords
polyethylene terephtalate
granules
producing powdered
powdered polyethylene
polyethylene terephthalate
Prior art date
Application number
SU894732613A
Other languages
Russian (ru)
Inventor
Леонид Львович Миронович
Валентина Антоновна Пашинская
Олег Романович Юркевич
Николай Александрович Якубеня
Михаил Иванович Минкевич
Original Assignee
Институт механики металлополимерных систем АН БССР
Минский Филиал Научно-Производственного Объединения "Техэнергохимпром"
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 Институт механики металлополимерных систем АН БССР, Минский Филиал Научно-Производственного Объединения "Техэнергохимпром" filed Critical Институт механики металлополимерных систем АН БССР
Priority to SU894732613A priority Critical patent/SU1675110A1/en
Application granted granted Critical
Publication of SU1675110A1 publication Critical patent/SU1675110A1/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Изобретение относитс  к области криогенного измельчени  в зкоупругих полимерных материалов. Цель - увеличение выходы дисперсной фракции полиэтилентерефталата с размером частиц 50...400 мкм. Дл  этого перед охлаждением гранулы нагревают до 150-240°С и выдерживают в течение 15-30 мин. 1 табл.This invention relates to the field of cryogenic grinding in viscoelastic polymeric materials. The goal is to increase the yields of the dispersed fraction of polyethylene terephthalate with a particle size of 50 ... 400 microns. For this, before cooling, the granules are heated to 150-240 ° C and kept for 15-30 minutes. 1 tab.

Description

Изобретение относитс  к криогенному измельчению е зкоупругих полимерных материалов и их отходов и может быть использовано дл  получени  композитов на основе порошков полимеров или дл  получени  покрытий вибровихревым методом.The invention relates to cryogenic grinding of e-elastic polymer materials and their waste and can be used to produce composites based on polymer powders or to obtain coatings by a vibro-vortex method.

Цель изобретени -увеличение выхода дисперсной фракции полиэтилентерефтала- та с размером частиц 50-400 мкм.The purpose of the invention is to increase the yield of the dispersed fraction of polyethylene terephthalate with a particle size of 50-400 microns.

Способ осуществл ют следующим образом .The method is carried out as follows.

Гранулы полиэтилентерефталата размером 3 х5 х 6 мм подвергают термообработке , т. е. нагревают до температуры 150-240°С и выдерживают в течение 15-30 мин. Затем гранулы охлаждают в цилиндрическом сосуде Дьюара, наполненном жидким азотом путем их засыпки. Врем  охлаждени  устанавливают по прекращению кипени  жидкого азота. Охлажненный материал измельчают на молотковой микромельнице типа 8-ММ. Мощность электродвигател  5,5 кВт, число оборотов ротора вPolyethylene terephthalate granules with dimensions of 3 x5 x 6 mm are heat treated, i.e. heated to a temperature of 150-240 ° C and held for 15-30 minutes. Then the granules are cooled in a cylindrical Dewar vessel filled with liquid nitrogen by filling them. The cooling time is set to stop the boiling of liquid nitrogen. The cooled material is ground on a hammer micromill type 8-MM. Motor power 5.5 kW, the rotor speed in

минуту - 4750. Измельченный дисперсный материал проходит через сетку площадью 450 см с числом отверстий 14 на 1 см диаметром 1,5 мм, расположенную в нижней части корпуса микромельницы, и ссыпаетс  в приемное устройство В процессе измельчени  получают полидисперсный порошок с размером частиц 50-1000 мкм. Фракционирование провод т на приборе дл  определени  зернового состава модели 029 через сито N° 04 с размерами отверстий 400 мкм.minute - 4750. The crushed dispersed material passes through a 450 cm mesh with 14 holes per cm with a diameter of 1.5 mm, located in the lower part of the micromill’s case, and poured into a receiving device. um Fractionation is carried out on a device for determining the grain composition of model 029 through a N ° 04 sieve with apertures 400 μm.

Как видно из данных, представленных в таблице, применение предлагаемого способа позвол ет увеличить выход дисперсной фракции полиэтилентерефталата с размером частиц 50-400 мкм в 3-3,5 разаAs can be seen from the data presented in the table, the application of the proposed method allows to increase the yield of the dispersed fraction of polyethylene terephthalate with a particle size of 50-400 microns by 3-3.5 times

Claims (1)

Формула изобретени  Способ получени  порошка полиэтилентерефталата , при котором гранулы охлаждают и механически измельчают, отличающийс  тем,что,с целью увеличени The invention of the method of producing polyethylene terephthalate powder, in which the granules are cooled and mechanically crushed, characterized in that, in order to increase слcl сwith о XI слabout XI cl «-а"-but .ж.zh оabout выхода дисперсной фракции с размером частиц 50-400 мк, перед охлаждением гранулы нагревают до 150-240°С и выдерживают в течение 15-30 мин.the output of the dispersed fraction with a particle size of 50-400 microns, before cooling, the granules are heated to 150-240 ° C and incubated for 15-30 minutes
SU894732613A 1989-08-22 1989-08-22 Method of producing powdered polyethylene terephtalate SU1675110A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU894732613A SU1675110A1 (en) 1989-08-22 1989-08-22 Method of producing powdered polyethylene terephtalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU894732613A SU1675110A1 (en) 1989-08-22 1989-08-22 Method of producing powdered polyethylene terephtalate

Publications (1)

Publication Number Publication Date
SU1675110A1 true SU1675110A1 (en) 1991-09-07

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Application Number Title Priority Date Filing Date
SU894732613A SU1675110A1 (en) 1989-08-22 1989-08-22 Method of producing powdered polyethylene terephtalate

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008068764A3 (en) * 2006-12-06 2009-06-18 Ha Ind Technologies Ltd Formation of substances by mechanical breaking of carbon-carbon chains molecules

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Вильниц С. А. и др. Получение высокодисперсных порошков полимерных материалов методом низкотемпературного измельчени . Плас(ические массы. 1971, Nfc 6, с. 35-37. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008068764A3 (en) * 2006-12-06 2009-06-18 Ha Ind Technologies Ltd Formation of substances by mechanical breaking of carbon-carbon chains molecules

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