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

Flame retardant fiberglass enhanced PCT composite materal in low smoke

A glass fiber and composite material technology, which is applied in the field of flame-retardant glass fiber reinforced PBT composite materials, can solve the problems of large amount of additives and influence on material performance, and achieve low smoke generation, simple preparation process and low cost Effect

Active Publication Date: 2008-08-20
CHONGQNG PRET NEW MATERIAL +2
View PDF28 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] These substances in the above-mentioned patents all have a certain smoke-suppressing effect on flame-retardant materials, but there is a common problem, that is, the addition of these smoke-suppressing additives is too large, generally accounting for the proportion of the entire flame-retardant material It is around 7~10%, so it greatly affects other properties of the material, especially the impact properties of the material

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The weight ratio of PBT is 51.3%, decabromodiphenyl ether 10%, antimony trioxide 3.5%, polytetrafluoroethylene 0.5%, nano-zinc oxide 1%, nano-calcium carbonate 1%, PTW2.5% and 1010,0.2 % Dry blending in a high-speed mixer at room temperature, and then blending 30% of glass fibers treated with coupling agent KH550 in a twin-screw extruder, melt extrusion at 230-255°C, and pelletize into composite materials. Among them, the temperature settings of each heating zone of the screw are: 230-250°C in the first zone, 235-255°C in the second zone, 235-255°C in the third zone, and 240-250°C in the fourth zone; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

Embodiment 2

[0058] The weight ratio of PBT is 49.3%, decabromodiphenyl ether 10%, antimony trioxide 3.5%, polytetrafluoroethylene 0.5%, nano-zinc oxide 2%, nano-calcium carbonate 2%, PTW2.5% and 1010,0.2 % Dry blending at room temperature in a high-speed mixer, and then blending 30% of glass fibers treated with coupling agent KH550 in a twin-screw extruder, melt extruding, and granulating to make composite materials. Among them, the temperature settings of each heating zone of the screw are: 230-250°C in the first zone, 235-255°C in the second zone, 235-255°C in the third zone, and 240-250°C in the fourth zone; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

Embodiment 3

[0060] The weight ratio of PBT is 47.3%, decabromodiphenyl ether 10%, antimony trioxide 3.5%, polytetrafluoroethylene 0.5%, nano-zinc oxide 3%, nano-calcium carbonate 3%, PTW2.5% and 1010,0.2 % Dry blending at room temperature in a high-speed mixer, and then blending 30% of glass fibers treated with coupling agent KH550 in a twin-screw extruder, melt extruding, and granulating to make composite materials. Among them, the temperature settings of each heating zone of the screw are: 230-250°C in the first zone, 235-255°C in the second zone, 235-255°C in the third zone, and 240-250°C in the fourth zone; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
thermal decomposition temperatureaaaaaaaaaa
Login to View More

Abstract

A glass fibre reinforced PBT composite is prepared from PBT decabromo-ether biphenyl, diantimony trioxide, teflon, nanozine dioxide, nanocalcium carbonate, flexibilizing compatibilizer, antioxygen and glass fibre. Its preparing process includes using PBT as base body, adding abovesaid chemicals and agents on the base body dry-mixing them, melting and extruding mixed material with glass fibre and then pelletizing.

Description

technical field [0001] The invention relates to a low-smoke flame-retardant glass fiber-reinforced polybutylene terephthalate (hereinafter referred to as PBT) composite material, relates to a polymer composite material and a preparation method thereof, and more specifically relates to a smoke inhibitor containing Flame retardant glass fiber reinforced PBT composite material. Background technique [0002] Glass fiber reinforced PBT materials not only have excellent physical and mechanical properties, such as high mechanical strength, good fatigue resistance and dimensional stability, small creep, excellent aging resistance, but also excellent electrical properties, such as volume resistivity and dielectric strength. It has high electric strength, excellent arc resistance, and stable electric performance in humid and high temperature environment, so it is an ideal material for manufacturing electronic and electrical parts. General electronic and electrical parts have differen...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/03C08K7/14
Inventor 翁永华张祥福周文
Owner CHONGQNG PRET NEW MATERIAL