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Super-flexible engineering plastic with reclaimed blow molding PET as substrate

A technology of engineering plastics and parts by weight, applied in the direction of plastic recycling, recycling technology, reagents, etc., can solve the problem of high cost of PBT engineering plastics

Inactive Publication Date: 2006-09-20
马鞍山支点高分子材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's PET engineering plastics is an emerging industry, and the production of engineering plastics from PET is almost blank. The main raw material for the production of engineering plastics is still polybutylene terephthalate (PBT), but the cost of PBT engineering plastics is high.

Method used

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  • Super-flexible engineering plastic with reclaimed blow molding PET as substrate
  • Super-flexible engineering plastic with reclaimed blow molding PET as substrate
  • Super-flexible engineering plastic with reclaimed blow molding PET as substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take recycled PET bottle flakes 9.490Kg, PC (Idemitsu Petrochemical Co., Ltd.) 4.790Kg, SEBS (Japan Asahi Kasei Co., Ltd.) 1.620Kg, PET and PC were vacuum-dried at 100°C for 20 hours, and SEBS was vacuum-dried. After drying, the above materials were mixed in a high-speed mixer, and 30 grams of MDI (trade name MR-200, product of Japan Polyurethane Co., Ltd.) was added. The material is extruded after high-speed mixing in a high-speed mixer for 10 minutes. The temperature of each section of the extruder is set at 150°C, 150°C, 150°C, 150°C, 150°C, 240°C, 240°C, 240°C, the screw speed of the main engine is 45rpm, and the feeding speed is 10rpm. The extruded blends were injection molded after vacuum drying at 100°C for 20 hours before injection. The injection temperature is 270°C, 265°C, 265°C, 260°C. The performance test results show that the tensile strength is 43.24MPa, the elongation at break is 264.84%, the bending strength is 61.86MPa, and the impact strength has no ...

Embodiment 2

[0027] Get 7.2Kg of reclaimed PET bottle flakes, PC selects 2.2Kg of TEIJIN 1225Y grade PC (Japan Teijin Chemicals Co., Ltd.) with lower viscosity for use, SEBS (Japan Asahi Kasei Co., Ltd.) 0.8Kg, PET and PC are vacuum-dried at 100 ° C for 20 hours, SEBS is vacuum dried. After drying, the above materials were mixed in a high-speed mixer. Add 500 grams of bisphenol A diglycidyl ether (DGEBA, whose structure is shown in the preceding formula (3), produced by Aldrich Chemical Company), and the material is mixed in a high-speed mixer for 10 minutes and then extruded. The temperature of each section of the extruder is set at 100°C, 100°C, 100°C, 100°C, 100°C, 150°C, 150°C, the screw speed of the main engine is 150rpm, and the feeding speed is 10rpm. The extruded blend was vacuum dried at 100°C for 20 hours before injection. The injection temperature is 190-230°C, the injection pressure is 70-100MPa, and the mold temperature is 40°C. The performance test results show that the te...

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Abstract

The engineering plastic with recovered blowing molded PET as base material is produced with recovered blowing molded PET, polycarbonate, and styrene / ethylene / butadiene / styrene copolymer as material, and through solid phase reaction at 60-240 deg.c and extrusion under the action of mechanical shearing force field. The engineering plastic of the present invention has high plasticity, excellent shock performance and other advantages. It may be used in building material and cellphone casing, and may be developed to find application in automobile part, electronic device and other fields owing to the characteristics of the material in forming, machining, etc.

Description

technical field [0001] The invention relates to a super-tough plastic material, in particular to a super-tough engineering plastic based on recycled blow-molded PET. technical background [0002] Along with the vigorous development of beverage industry, the application of PET (polyethylene terephthalate) bottle is also more and more extensive, and consumption also increases rapidly. The result is white pollution caused by a large number of discarded PET bottles. From the perspective of saving energy and resources and protecting the environment, the recycling of discarded PET bottles is of great significance. China's current annual output of high-viscosity PET has reached 1.2 million tons, and the demand for PET beverage bottles is expected to exceed 600,000 tons by 2005. [0003] At present, domestic research on recycling PET is limited to spinning or cracking into low-molecular compounds after regeneration and granulation, as raw materials for polymerization or production ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J11/04B29B17/00B29C47/00C08L67/03C08L69/00C08L53/02
CPCY02P20/143Y02W30/62
Inventor 郭卫红吴驰飞高原冀李滨耀殷国蓉汤先文张喜亮李慧
Owner 马鞍山支点高分子材料研究院有限公司