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High heat-resistant Poly(trimethylene terephthalate) composition

A technology of polytrimethylene terephthalate and a composition, applied in the field of modified polyester, can solve the problems of high price of PBT and the like, and achieve the effects of excellent electrical properties, low warpage and excellent mechanical properties

Inactive Publication Date: 2008-06-25
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent application number is 200410017803.4, which announced "a glass fiber reinforced PBT composite material with low warpage and high surface gloss". This material makes the heat resistance HDT of PBT reach about 210, but the price of PBT is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and 2

[0019] Embodiment 1 and 2 proportioning 1-2 (table 1)

[0020] raw material name

Proportion 1 (wt%)

Proportion 2 (wt%)

PTT

35

50

glass fiber

30

30

copolyester

25

15

Toughener

10

5

[0021] Weigh the raw materials according to the weight ratio, put the other raw materials except glass fiber into the high mixer and mix them for 4 minutes, and then extrude them together with the glass fiber with a screw extruder to make granules. The processing temperature is 230°C, and the screw speed is 200. rpm.

[0022] Sample 1, sample 2 made according to embodiment 1, embodiment 2 and glass fiber reinforced PBT product performance contrast

[0023] Comparison of heat resistance (Table 2)

[0024] project

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PUM

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Abstract

The invention relates to a high heat-resisting enhancement to polytrimethylene terephthalate compound materials, which is characterized in that the invention comprises the following raw materials in weight percent: 30 per cent to 60 per cent of polytrimethylene terephthalate (PTT), 20 per cent to 50 per cent of hydroxyphenylphosphinyl, 10 per cent to 30 per cent of glass fiber and 5 per cent to 15 per cent of plasticizer. The preparation for high heat-resisting enhancement to polytrimethylene terephthalate compound materials is as follows: the raw material is taken according to the percent by weight scale; other raw materials except the glass fiber are put in a high speed mixing machine to be mixed; the materials are thrown out; the mixed raw material added with the glass fiber are put in a screw rod machine to squeeze out the grain. The invention has the advantages of super elevation thermal stability, low warp, extremely high impact performance, high strength, fine chemical-resistance and good size stability.

Description

technical field [0001] The present invention relates to a high heat-resistant reinforced polytrimethylene terephthalate composition, more specifically to a reinforced PTT composite material that can significantly improve the heat resistance of PTT and can replace reinforced polybutylene terephthalate PBT , belongs to the technical field of modified polyester. Background technique [0002] PBT has excellent mechanical properties, aging resistance, excellent electrical properties, etc., and is widely used in electronic appliances, automobiles, mechanical equipment, and precision instrument parts to replace metal parts and thermosetting resin parts. The heat resistance under high load is not enough, so many glass fiber reinforced PBT is currently used to improve its heat resistance. The patent application number is 200410017803.4, which announced "a glass fiber reinforced PBT composite material with low warpage and high surface gloss". This material makes the heat resistance H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/03C08K9/06B29B7/12B29C47/92C08K7/14C08L51/06B29C48/92
CPCB29C47/92B29C48/04B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 李茂林唐倬肖健
Owner SHANGHAI SUNNY
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