Shock-resistant flame-retardant reinforced PBT (polybutylene terephthalate) composite material and preparation method thereof

A composite material and impact-resistant technology, applied in the field of impact-resistant flame-retardant reinforced PBT composite material and its preparation, can solve the problems of limited application field, low notched impact strength and high rigidity of PBT material, and achieve a simple and comprehensive preparation method. The effect of excellent performance and high impact resistance

Inactive Publication Date: 2014-01-22
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the benzene ring, ester group and methylene group contained in the PBT molecular structure, the PBT molecular chain is relatively rigid and has a high crystallization rate, resulting in low notched impact strength of the PBT material, and its application fields are limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An impact-resistant and flame-retardant reinforced PBT composite material, the components of which are proportioned by mass percentage: PBT 50%, poly-2,6-dibromophenylene ether 15%, antimony trioxide 7.5%, acrylic acid grafted organic Silicon type LP2085 impact modifier 1.5%, alkali-free glass fiber 20%, silane coupling agent 2%, compound of phenolic antioxidant 1076 and phosphite antioxidant 168 0.3%, Malay Anhydride grafted POE 3%, OP wax 0.7%.

[0020] Preparation method: (1) Weigh and batch the above-mentioned components in proportion; (2) Dry PBT at 120°C-130°C for 4-6 hours, control the moisture content below 0.03%, and dry it for later use; (3 ) PBT after drying treatment and poly 2,6-dibromophenylene ether, antimony trioxide, acrylic graft silicone type LP2085 impact modifier, phenolic antioxidant 1076 and phosphite antioxidant Add the compound of oxygen agent 168, maleic anhydride grafted POE and OP wax into the mixing tank, stir to make it fully mixed; (4) Mi...

Embodiment 2

[0022] An impact-resistant and flame-retardant reinforced PBT composite material, the components of which are proportioned by mass percentage: PBT 45%, poly-2,6-dibromophenylene ether 13%, antimony trioxide 6.5%, acrylic acid grafted organic Silicon type LP2085 impact modifier 1%, alkali-free glass fiber 30%, silane coupling agent 3%, compound of phenolic antioxidant 1076 and phosphite antioxidant 168 0.2%, low density Polyethylene 0.5%, EVA 0.8%.

[0023] Preparation method: (1) Weigh and batch the above-mentioned components in proportion; (2) Dry PBT at 120°C-130°C for 4-6 hours, control the moisture content below 0.03%, and dry it for later use; (3 ) PBT after drying treatment and poly 2,6-dibromophenylene ether, antimony trioxide, acrylic graft silicone type LP2085 impact modifier, phenolic antioxidant 1076 and phosphite antioxidant Add the compound of oxygen agent 168, low-density polyethylene and EVA into the mixing tank, stir to make it fully mixed; (4) use the above-m...

Embodiment 3

[0025] An impact-resistant and flame-retardant reinforced PBT composite material, the components of which are proportioned by mass percentage: PBT 60%, poly-2,6-dibromophenylene ether 18%, antimony trioxide 9%, acrylic acid grafted organic 0.5% silicon-type LP2085 impact modifier, 10% alkali-free glass fiber, 1% silane coupling agent, 0.3% compound of phenolic antioxidant 1076 and phosphite antioxidant 168, ethylene- Butyl acrylate-glycidyl terpolymer 0.8%, calcium stearate 0.4%.

[0026] Preparation method: (1) Weigh and batch the above-mentioned components in proportion; (2) Dry PBT at 120°C-130°C for 4-6 hours, control the moisture content below 0.03%, and dry it for later use; (3 ) PBT after drying treatment and poly 2,6-dibromophenylene ether, antimony trioxide, acrylic graft silicone type LP2085 impact modifier, phenolic antioxidant 1076 and phosphite antioxidant Add the compound of oxygen agent 168, ethylene-butyl acrylate-glycidyl ester terpolymer and calcium stearate...

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PUM

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Abstract

The invention discloses a shock-resistant flame-retardant reinforced PBT (polybutylene terephthalate) composite material and a preparation method thereof. The shock-resistant flame-retardant reinforced PBT composite material comprises the following components in percentage by mass: 45-60% of PBT, 13-20% of polymer flame retardant, 3-10% of antimony trioxide, 0.5-3% of impact modifier, 5-40% of alkali-free glass fiber, 0.5-4% of surface treating agent, 0.2-0.5% of antioxidant, 0.5-5% of toughener and 0.1-1% of lubricant. The composite material well balances the shock resistance, flame retardancy, weather resistance, compatibility, dispersibility, service life and the like of the PBT, thereby providing a PBT composite material with excellent comprehensive properties, and widening the application range of the PBT. The preparation method disclosed by the invention is simple and easy to operate.

Description

technical field [0001] The invention relates to a PBT composite material and a preparation method thereof, in particular to an impact-resistant and flame-retardant reinforced PBT composite material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is one of the five major engineering plastics and is widely used because of its excellent electrical properties and processing properties. However, because the molecular structure of PBT contains benzene rings, ester groups and methylene groups, the molecular chains of PBT are more rigid and have a high crystallization rate, resulting in low notched impact strength of PBT materials, and its application fields are limited. Contents of the invention [0003] The purpose of the present invention is to provide a high impact resistance, high flame retardant efficiency and good weather resistance, impact resistance and flame retardant reinforced PBT composite material and its preparation m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L71/12C08K13/04C08K3/22C08K7/14C08J5/04
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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