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Polyethanediol terephthalate composition and its preparation method

A technology of polyethylene terephthalate and composition, applied in the field of polyethylene terephthalate composition and its preparation, to achieve the effects of improved molding cycle, good fluidity, and increased heat distortion temperature

Inactive Publication Date: 2005-09-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve these problems in the use of polyethylene terephthalate, we use modifiers such as powder rubber to modify polyethylene terephthalate resin, which can not lose the toughness while toughening Heat resistance and strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0032] PET (polyethylene terephthalate, Yanshan Petrochemical Polyester Plant, high viscosity) and ultra-fine fully vulcanized powder carboxybutyl benzene (produced by Beijing Research Institute of Chemical Industry, the preparation method is: the brand produced in Yanshan Petrochemical is XSBRL- In the 54B1 carboxylated styrene-butadiene emulsion, the cross-linking auxiliary agent isooctyl acrylate is mixed with 3% of the mass of the carboxylated styrene-butadiene emulsion dry glue, and then irradiated and vulcanized. The radiation dose is 2.5 Mrad, and it is obtained by spray drying. The gel content is 92.6% by weight, particle size is 0.15 μ m), filler superfine talcum powder (Talc Hebei Luquan building material factory production, 1250 mesh), flame retardant (Sb 2 o 3 , decabromodiphenyl ether, commercially available), POE grafted glycidyl methacrylate (made by POE-g-GMA) and calcium stearate (CaSt 2 Beijing Changyang Farm Chemical Factory), etc., put it into a low-speed ...

Embodiment 4～6

[0035] PET (polyethylene terephthalate, Yanshan Petrochemical Polyester Plant, high viscosity) and ultra-fine fully vulcanized powder acrylate rubber (produced by Beijing Research Institute of Chemical Industry Preparation method: the brand produced in Beijing Dongfang Chemical Factory is BC- 01 has a solid content of 48% by weight of acrylate latex, mixed with 3% of the dry rubber mass as a cross-linking aid isooctyl acrylate, and then irradiated and vulcanized with a radiation dose of 2.5 Mrad. It was obtained by spray drying. Glue content is 85.7% weight, and particle diameter is 0.1 μ m), POE grafted glycidyl methacrylate (same as embodiment 1), filler superfine talcum powder (same as embodiment 1), calcium stearate (same as embodiment 1) and flame retardant (Sb 2 o 3 , decabromodiphenyl ether, commercially available), put into a low-speed mixer and stir evenly, extrude and granulate in a twin-screw (ZSK 25, German WP company) at 240-260°C. During the extrusion process, ...

Embodiment 7～11

[0039] PET (polyethylene terephthalate, Yanshan Petrochemical Polyester Plant, high viscosity) and ultrafine fully vulcanized powder acrylate rubber and ultrafine fully vulcanized acrylate powder rubber (same as above), POE grafted methacrylic shrink Glyceride (with embodiment 1), filler superfine talcum powder (with embodiment 1), calcium stearate (with embodiment 1) and flame retardant (Sb 2 o 3 , decabromodiphenyl ether, commercially available), put into a low-speed mixer and stir evenly, extrude and granulate in a twin-screw (ZSK 25, German WP company) at 240-260°C. During the extrusion process, the long glass fibers (same as in Example 1) are blended with the materials in the screw rods through the glass fiber feeding ports on the twin-screws. The extruded pellets were dried in a constant temperature oven at 90°C for 6 hours, and then injected into standard specimens at a temperature of 250-270°C for various mechanical property tests. The specific formula is shown in Ta...

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PUM

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Abstract

An ethanediol polyterephthalate composition is prepared from the ethanediol polyterephthalate, rubber particles (0.02-0.3 micron) with cross-linking structure, and the grafted substance between unsufurized rubber and polar monomer and / or the grafted substance between thermoplastic elastomer and polar monomer through fusing and proportionally mixture. Its advantages are high toughness and machinability and better strength and rigidity.

Description

technical field [0001] The present invention relates to a kind of polyester composition, more specifically, relates to a kind of polyethylene terephthalate composition modified by powder rubber and its preparation method. Background technique [0002] Thermoplastic polyester is one of the five major engineering plastics in the world today. It has a series of excellent properties such as light density, high strength, good electrical insulation and heat insulation, so it is widely used in the national economy, national defense industry and high-tech industries. It is an indispensable new material. Thermoplastic polyester mainly includes polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN) and polyethylene terephthalate (PEN). Cyclohexene dimethylene terephthalate (PCT), etc., are products of polycondensation of dibasic acids and dibasic alcohols. [0003] PET is a kind of thermoplastic polyester with very large output and consump...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/03
Inventor 张师军乔金梁张薇尹华邵静波吕明福段淑清李魁刘轶群张晓红
Owner CHINA PETROLEUM & CHEM CORP
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