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High-performance PBT composite material and preparation method thereof

A composite material and high-performance technology, applied in the field of high-performance PBT composite material and its preparation, can solve the problems of the limitation of PBT leakage resistance, potential safety hazards, etc., and achieve the effects of good dimensional stability, low cost and excellent processing performance.

Inactive Publication Date: 2015-08-19
QINGDAO WANLI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PBT materials on the market often need to be treated with flame retardant enhancement and modification, aiming to obtain a PBT material with high strength and high flame retardant performance, but there are generally certain limitations and safety hazards in the leakage resistance of PBT. thus limiting its application in certain aspects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-performance PBT composite material, its components are proportioned by mass percentage: PBT 61%, flame retardant 15%, glass fiber 10%, maleic anhydride grafted ethylene-octene copolymer POE-g-MAH 10 %, micron calcium oxide 3%, calcium stearate 0.2%, 1076 antioxidant 0.1%, 168 antioxidant 0.1%, modified ethylene bis fatty acid amide TAF 0.6%. Wherein, the flame retardant is a compound composed of polydimethylsiloxane flame retardant and bisphenol A-bis(diphenyl phosphate) flame retardant with a mass ratio of 1:4; the glass fiber It is an alkali-free chopped glass fiber with a diameter of 8-15 μm and an activated surface.

[0019] The preparation method is as follows: (1) Dry the PBT at 120°C-140°C for 4-6 hours, dry the flame retardant and micron calcium oxide at 60°C-80°C for 30-45 minutes, and set aside; (2) Weigh the dry micron calcium oxide according to the mass percentage and add it to a high-speed mixer with a rotation speed of not less than 3000r / min. 60 ...

Embodiment 2

[0021] A high-performance PBT composite material, its components are proportioned by mass percentage: PBT 77%, flame retardant 10%, glass fiber 5%, maleic anhydride grafted styrene-ethylene-butadiene-styrene copolymer SEBS-g-MAH 5%, micron calcium oxide 2%, silane coupling agent 0.1%, 1076 antioxidant 0.1%, 168 antioxidant 0.1%, modified ethylene bis fatty acid amide TAF 0.7%. Wherein, the flame retardant is a compound composed of polydimethylsiloxane flame retardant and bisphenol A-bis(diphenyl phosphate) flame retardant with a mass ratio of 1:4; the glass fiber It is an alkali-free chopped glass fiber with a diameter of 8-15 μm and an activated surface.

[0022] The preparation method is as follows: (1) Dry the PBT at 120°C-140°C for 4-6 hours, dry the flame retardant and micron calcium oxide at 60°C-80°C for 30-45 minutes, and set aside; (2) Weigh the dry micron calcium oxide according to the mass percentage and add it to a high-speed mixer with a rotation speed of not les...

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Abstract

The present invention discloses a high-performance PBT composite material and a preparation method thereof, wherein the high-performance PBT composite material comprises, by mass, 60-80% of PBT, 10-15% of a fire retardation agent, 5-15% of glass fibers, 3-10% of a toughening agent, 0.5-3% of micron calcium oxide, 0.1-0.3% of a surface treating agent, 0.1-0.5% of a 1076 antioxidant, 0.1-0.5% of a 168 antioxidant, and 0.1-1% of modified ethylene bis fatty acid amide TAF. The high-performance PBT composite material of the present invention has beneficial effects of excellent fire retardation, excellent processability, good impact toughness, low warpage, and good size stability, is added with the appropriate amount of the micron calcium oxide to improve the mechanical strength, the electric leakage resistance and the heat resistance so as to provide the good comprehensive performance, and provides good practical values and prospects in the fields of chemical industry, machinery, electronics, electrical appliances, building materials and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-performance PBT composite material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is one of the five major engineering plastics and has been widely used in electronics, electrical appliances, home appliances and other fields. The PBT materials on the market often need to be treated with flame retardant enhancement and modification, aiming to obtain a PBT material with high strength and high flame retardant performance, but there are generally certain limitations and safety hazards in the leakage resistance of PBT. Thereby limiting its application in some aspects. Contents of the invention [0003] The object of the present invention is to provide a high-performance PBT composite material with high leakage resistance, high flame retardancy and high impact resistance and a preparation method thereof. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L83/04C08K13/06C08K9/04C08K9/06C08K7/14C08K3/22C08K5/523
Inventor 不公告发明人
Owner QINGDAO WANLI TECH
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