Heat-resistant, reinforced and modified PBT powder and preparation method thereof

A heat-resistant enhancement and modification technology, applied in the field of polymer materials, can solve the problems of low PBT strength, insufficient heat resistance, poor flame retardancy, etc., and achieve the effects of good processing performance, low cost and stable performance.

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

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Problems solved by technology

However, the use of PBT alone has disadvantages such as low strength, insu...

Method used

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Embodiment Construction

[0017] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0018] A heat-resistant enhanced modified PBT powder, whose components are proportioned by mass percentage: PBT 68%, glass fiber 10%, talc powder 5%, flame retardant 10%, TPU 5%, aluminum-titanium composite coupling agent 0.2%, pentaerythritol stearate 1%, N,N-4,4-diphenylmethane bismaleimide 0.6%, antioxidant 0.2%. Wherein, the PBT is a polybutylene terephthalate resin; the glass fiber is an alkali-free chopped glass fiber whose surface is treated with a silane coupling agent KH550; the flame retardant is a mass ratio of 1:4 The complex of polydimethylsiloxane and bisphenol A-bis(diphenyl phosphate); the antioxidant is a compound of antioxidant 1076 and antioxidant 168 with a mass ratio of 1:1 things.

[0019] Its preparation method is: (1), dry PBT at 120°C-140°C for 4-6 hours, dry the flame retardant at 80°C-85°C for 30-45 minutes, and set as...

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Abstract

The present invention discloses heat-resistant, reinforced and modified PBT powder and a preparation method thereof, wherein the heat-resistant, reinforced and modified PBT powder comprises, by mass, 60-80% of PBT, 5-15% of glass fibers, 2-10% of talc powder, 8-15% of a flame retardant agent, 3-8% of TPU, 0.1-0.3% of an aluminum titanium composite coupling agent, 0.1-1% of pentaerythrityl tetrastearate, 0.1-1% of a heat-resistance stabilizer, and 0.1-0.5% of an antioxidant, wherein the heat-resistance stabilizer is N,N-4,4-diphenylmethane bismaleimide. The heat-resistant, reinforced and modified PBT powder of the present invention has beneficial effects of high heat resistance, high flame retardant property, good mechanical property, excellent electrical performance, good processability, strong chemical resistance, stable performance, good appearance quality, low cost, and the like, and can be used in the fields of electronic appliances, chemical industry machinery, and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a heat-resistant enhanced modified PBT powder and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT for short) is a crystalline thermoplastic polyester. Due to its excellent electrical properties and corrosion resistance, it has been widely used in the fields of electronic appliances, chemicals, machinery and so on. However, the use of PBT alone has disadvantages such as low strength, insufficient heat resistance, and poor flame retardancy, which limit its application. Contents of the invention [0003] The object of the present invention is to provide a kind of heat-resistant enhanced modified PBT powder and its preparation method. [0004] The technical scheme adopted by the present invention to solve the technical problem is: a kind of heat-resistant enhanced modified PBT powder, its components are proportioned by mass per...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L83/04C08K13/06C08K9/06C08K9/04C08K7/14C08K3/34C08K5/523C08K5/3415C08K5/134C08K5/526
Inventor 不公告发明人
Owner QINGDAO WANLI TECH
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