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Method for treating metal strip doped PET waste film

A processing method and technology for metal strips are applied in the processing field of PET waste film doped with metal strips, which can solve the problems of waste of resources, white garbage pollution, and difficulty in recycling, and achieve the effects of improving the recycling rate and reducing pollution.

Inactive Publication Date: 2020-05-22
SHENZHEN LUHUAN REGENERATION RESOURCE DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The "garbage" of the electronics factory - the plastic film of the packaging circuit board, in order to discharge the static electricity of the circuit board, the plastic film of the packaging circuit board is often doped with metal strips, but this kind of plastic film is difficult to recycle by conventional methods due to the doping of metal strips , causing great white garbage pollution and waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] The embodiment of the present application provides a method for treating waste PET film with doped metal tape.

[0077] (1) Treatment of PET waste film with doped metal tape

[0078] Crush the PET waste film with doped metal tape to a particle size of ≤5mm;

[0079] (2) Prepare the mixture

[0080] 100 parts by weight of pulverized PET waste film doped with metal, 0.3 parts by weight of KL-E4300 chain extender, 2 parts by weight of DuPont PTW, 0.2 parts by weight of CHEMNOX 1010 and phosphite were mixed uniformly to prepare a mixture;

[0081] (3) extrusion molding

[0082] Keeping the vacuum degree ≤ 500Pa, adding the prepared mixture into a twin-screw extruder and extruding to obtain a mixture. Set the temperature of the barrel from the inlet to the outlet to 280°C-275°C-275°C-270°C-270°C-270°C-265°C-265°C-260°C-260°C, twin-screw extruder The screw rotation speed of the twin-screw extruder is 120rpm, the temperature of the connector of the twin-screw extruder is 2...

Embodiment 2

[0085] The embodiment of the present application provides a method for treating waste PET film with doped metal tape.

[0086] (1) Treatment of PET waste film with doped metal tape

[0087] Crush the PET waste film with doped metal tape to a particle size of ≤5mm;

[0088] (2) Prepare the mixture

[0089] 100 parts by weight of pulverized doped metal strip PET waste film, 2 parts by weight of Dupont PTW, 0.2 parts by weight of CHEMNOX1010 and phosphite are mixed uniformly to prepare a mixture;

[0090] (3) extrusion molding

[0091] Keeping the vacuum degree ≤ 500Pa, adding the prepared mixture into a twin-screw extruder and extruding to obtain a mixture. Set the temperature of the barrel from the inlet to the outlet to 280°C-275°C-275°C-270°C-270°C-270°C-265°C-265°C-260°C-260°C, twin-screw extruder The screw rotation speed of the twin-screw extruder is 120rpm, the temperature of the connector of the twin-screw extruder is 260°C, the temperature of the screen changer of th...

Embodiment 3

[0094] The embodiment of the present application provides a method for treating waste PET film with doped metal tape.

[0095] (1) Treatment of PET waste film with doped metal tape

[0096] Crush the PET waste film with doped metal tape to a particle size of ≤5mm;

[0097] (2) Prepare the mixture

[0098] Mix 100 parts by weight of pulverized PET waste film with metal doping, 0.3 parts by weight of KL-E4300 chain extender, 0.2 parts by weight of CHEMNOX 1010 and phosphite to prepare a mixture;

[0099] (3) extrusion molding

[0100] Keeping the vacuum degree ≤ 500Pa, adding the prepared mixture into a twin-screw extruder and extruding to obtain a mixture. Set the temperature of the barrel from the inlet to the outlet to 280°C-275°C-275°C-270°C-270°C-270°C-265°C-265°C-260°C-260°C, twin-screw extruder The screw rotation speed of the twin-screw extruder is 120rpm, the temperature of the connector of the twin-screw extruder is 260°C, the temperature of the screen changer of th...

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Abstract

The invention discloses a method for treating metal strip doped PET waste film, and belongs to the technical field of waste utilization. The method comprises the following steps: keeping the vacuum degree to be less than or equal to 500 Pa, and carrying out extrusion molding on a mixture, wherein the mixture comprises an auxiliary agent and the crushed metal strip doped PET waste film having a particle size of less than or equal to 10 mm. The crushed metal strip doped PET waste film with the particle size of less than or equal to 10 mm is not easy to block a filter screen of an extruder, so that the PET waste film can be normally melted and extruded, and the crushed metal strip doped PET waste film is mixed with the auxiliary agent to increase the strength of the PET waste film, so that the recycled metal strip doped PET waste film can be prepared into other products to be reused.

Description

technical field [0001] This application relates to the technical field of waste utilization, in particular to a method for treating waste PET film with doped metal strips. Background technique [0002] The "garbage" of the electronics factory - the plastic film of the packaging circuit board, in order to discharge the static electricity of the circuit board, the plastic film of the packaging circuit board is often doped with metal strips, but this kind of plastic film is difficult to recycle by conventional methods due to the doping of metal strips , causing great white garbage pollution and waste of resources. Contents of the invention [0003] This application provides a treatment method for waste PET film with doped metal tape, which can process waste PET film with doped metal tape into other products, recycle waste PET film with doped metal tape, reduce pollution, and improve doping efficiency. Recycling rate of metal strip PET waste film. [0004] The embodiment of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08L51/06C08K13/02C08K3/08C08K5/134C08K5/524
CPCC08L67/02C08L23/0884C08L51/06C08K13/02C08K3/08C08K5/1345C08K5/524
Inventor 潘超李木易伍杨张恒朱敬辉
Owner SHENZHEN LUHUAN REGENERATION RESOURCE DEV CO LTD
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