Unlock instant, AI-driven research and patent intelligence for your innovation.

Low-melting-point glass fiber reinforced inflaming retarding PET resin composition and preparation method thereof

A resin composition, glass fiber technology, applied in the field of engineering plastics

Inactive Publication Date: 2016-12-07
SHANGHAI KINGFA SCI & TECH +2
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no document reporting the application of glass fiber reinforced flame-retardant low-melting PET in injection molding. This patent attempts to conduct some research and use in this direction.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-melting-point glass fiber reinforced inflaming retarding PET resin composition and preparation method thereof
  • Low-melting-point glass fiber reinforced inflaming retarding PET resin composition and preparation method thereof
  • Low-melting-point glass fiber reinforced inflaming retarding PET resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～11 comparative example 1～3

[0036] According to the formula in Table 1, mix PET resin, toughener, bromine-containing flame retardant, flame retardant synergist and other additives in a high-speed mixer for 1-2 minutes to obtain a premix, and the premix is ​​passed through a twin-screw Extruder, glass fiber is added from the middle of the extruder, melted and extruded at 210°C-250°C, cooled and granulated.

[0037] The performance test results are shown in Table 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a low-melting-point glass fiber reinforced inflaming retarding PET resin composition and a preparation method thereof. The composition is prepared from 9.4-81.4 parts of low-melting-point PET resin, 0-15 parts of flexibilizer, 10-20 parts of bromine-containing fire retardant, 3-5 parts of flame retardant synergist, 5-50 parts of glass fibers and 0.6 part of antioxygen. The low-melting-point PET resin is special PET resin with the melting point ranging from 190 DEG C tot 230 DEG C; the flexibilizer is at least one of ethylene-vinyl acetate, ethylene-methyl acrylate, ethylene-ethyl acrylate, ethylene-butyl acrylate, low density polyethylene, a maleic anhydride grafted ethylene-octylene copolymer, an ethylene-ethyl acrylate-glycidyl ester copolymer and an ethylene-butyl acrylate-glycidyl ester copolymer. The bromine-containing fire retardant is at least one of brominated polystyrene, decabromodiphenyl ethane, bromide polycarbonate, brominated epoxy and the like. The variety and use mount of the low-melting-point PET resin, the flexibilizer and the fire retardant are optimized, and the prepared low-melting-point glass fiber reinforced inflaming retarding PET resin composition has the advantages of being low in melting point, high in toughness and the like and can be widely applied to injection molding products.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a glass fiber reinforced flame-retardant PET resin composition with a low melting point and a preparation method thereof. Background technique [0002] Conventional polybutylene terephthalate (PET) is a semi-crystalline engineering plastic, which has good mechanical properties, electrical properties, heat resistance and chemical resistance, and is widely used in automobiles, electronics, Electrical appliances and other industries; also widely used in polyester bottles, fibers, films and other fields. But in the field of injection molding, because PET resin will crystallize during the melting process, its cooling crystallization speed is slow and the cooling time is long, which limits its application. [0003] By introducing copolymerization units during polymerization, the cold crystallization and crystallization ability of PET can be reduced, and even amorphous PET...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L67/02C08L25/18C08L23/08C08L51/06C08L69/00C08K13/04C08K7/14C08K5/134C08K5/526C08J5/04B29C47/92B29C48/92
CPCC08L67/02B29C48/92B29C2948/92704C08J5/043C08J2367/02C08K2201/003C08L2201/02C08L2205/03C08L25/18C08K13/04C08K7/14C08K5/1345C08K5/526C08L23/0884C08L51/06C08L69/00
Inventor 殷年伟卢立波刘贤文蒋刚军
Owner SHANGHAI KINGFA SCI & TECH