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Thermoplastic polyester composition and preparation method thereof

A technology for thermoplastic polyester and composition, applied in the field of thermoplastic polyester composition and its preparation, can solve the problems of low cost performance, narrow application range, no competitiveness, etc., and achieve the advantages of low product cost, strong competitiveness, and promotion of development. Effect

Active Publication Date: 2013-06-05
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN98119862.7 discloses a mixture of waste plastics and rubber and its preparation method. The plastic raw material in the patent is a mixture of various waste plastics, and the rubber raw material is a mixture of various waste rubbers. There is no effective blending material type. Separation and matching, the materials prepared by blending have phase separation, stress concentration, extremely poor performance, and narrow application range
Although the price has been reduced, the performance is very poor, and the price / performance ratio has become even lower, which is not competitive.

Method used

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  • Thermoplastic polyester composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 40 parts of polyethylene terephthalate resin, 29 parts of recycled polyethylene terephthalate, 15 parts of recycled styrene-butadiene rubber, 10 parts of styrene-butadiene rubber grafted with maleic anhydride, 5 parts of calcium carbonate, Add 0.2 parts of vinyltrichlorosilane, 0.3 parts of lubricant stearamide, 0.2 parts of antioxidant 1010 and 0.3 parts of antioxidant 168 into a high-speed mixer and mix for 5 minutes. The compound is fed into the twin-screw extruder from the feeding port of the extruder, and the extrusion temperatures are 210°C, 265°C, 270°C, 270°C, and 275°C, respectively, and extruded to granulate.

Embodiment 2

[0045] Add 50 parts of polybutylene terephthalate resin, 45 parts of recycled polybutylene terephthalate, and 5 parts of recycled polycarbonate into a high-speed mixer, and mix for 5 minutes. The compound is fed into the twin-screw extruder from the feed port of the extruder, and the extrusion temperatures are 200°C, 240°C, 240°C, 240°C, and 245°C, respectively, and extruded to granulate.

Embodiment 3

[0047] 37 parts of polyethylene terephthalate resin, 15 parts of recycled polypropylene, 10 parts of polypropylene grafted maleic anhydride, 35 parts of carbon black, 1 part of Y-chloropropyltriethoxysilane, 1 part Lubricant Zinc Stearate, 1 part Antioxidant 300 were added to the high-speed mixer and mixed for 10 minutes. The compound is fed into the twin-screw extruder from the feeding port of the extruder, and the extrusion temperatures are 210°C, 265°C, 265°C, 265°C, and 270°C, respectively, and extruded to granulate.

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Abstract

The invention belongs to the technical field of engineering plastic modification, and discloses a thermoplastic polyester composition and a preparation method thereof. The thermoplastic polyester composition is prepared from the following components by weight: 37-95 parts of thermoplastic polyester, 5-25 parts of a flexibilizer, 0-35 parts of an organic filler, 0-1 part of a coupling agent, 0-1 part of a lubricant, and 0-1 part of an antioxidant, wherein the thermoplastic polyester is selected from one or more than one of thermoplastic polyester resin or thermoplastic polyester reclaimed materials; the flexibilizer is selected from a flexibilizer 1 or a flexibilizer 2; when thermoplastic polyester is selected as the thermoplastic polyester, the flexibilizer is selected from one or more than one of flexibilizer 1 or a mixture of flexibilizer 1 and flexibilizer 2; when thermoplastic polyester reclaimed materials or a mixture of reclaimed materials and resin are selected as the thermoplastic polyester, the flexibilizer is selected from one or more than one of flexibilizer 1, flexibilizer 2, or a mixture of flexibilizer 1 and flexibilizer 2. The product of the invention maintains excellent comprehensive performance, and has very high cost performance.

Description

technical field [0001] The invention belongs to the technical field of modification of engineering plastics, and relates to a thermoplastic polyester composition and a preparation method thereof. Background technique [0002] Thermoplastic polyester resin is a kind of crystalline polymer with high melting point. It has excellent mechanical properties, low water absorption, good dimensional stability, good molding conditions, low friction, and good creep resistance under load. It is widely used in Machinery, electronics, automobiles, electrical appliances manufacturing and consumer goods and other fields. Although thermoplastic polyester resin has many excellent properties, its impact performance is not very good, and the shrinkage rate of molded products is also relatively large, which is greatly limited in the field of high impact resistance. The toughening modification of thermoplastic polyester resin includes blending and copolymerization toughening modification, and the...

Claims

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Application Information

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IPC IPC(8): C08L67/00C08L67/02C08L17/00C08L51/04C08L69/00C08L23/12C08L51/06C08L23/06C08L51/00C08L75/04C08L9/02C08L23/22C08L23/08C08K13/02B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40
Inventor 李万里
Owner HEFEI GENIUS NEW MATERIALS
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