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Halogen-free, fire retardation, strengthening and anti-aging PBT composite material

A composite material and aging-resistant technology, which is applied in the field of halogen-free flame retardant and aging-resistant PBT composite materials, can solve the problems of poor flame retardant performance, low notched impact strength, and large brittleness of PBT, and achieve excellent electrical properties and excellent mechanical properties. , the effect of stable 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

However, pure PBT has disadvantages such as poor flame retardancy, low notched impact strength, high brittleness, and easy aging, which greatly limit its application. Therefore, it is necessary to modify PBT in terms of flame retardancy, reinforcement, and aging resistance. its scope of application and enhanced performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A halogen-free flame-retardant reinforced anti-aging PBT composite material, the components of which are proportioned by mass percentage: 60% of PBT, 15% of halogen-free flame retardant, and 15% of nanometer heavy calcium carbonate after the surface is activated by a coupling agent. %, SMA 5%, anti-aging agent 2%, carbodiimide 1.5%, pyromellitic anhydride 0.5%, antioxidant 0.2%, pentaerythritol stearate 0.8%. Wherein, the PBT is polybutylene terephthalate; the halogen-free flame retardant is bisphenol A-bis(diphenyl phosphate) flame retardant and polydimethyl A compound of siloxane flame retardant; the SMA is a styrene-maleic anhydride copolymer; the aging resistance agent is the hindered amine light stabilizer HS-944 and HS-622 with a mass ratio of 1:1 Compound; the antioxidant is a compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168.

[0019] The preparation method is as follows: (1), dry PBT at 120°C-140°C for 4-6 hours, dry the halogen-free...

Embodiment 2

[0021] A halogen-free flame-retardant reinforced anti-aging PBT composite material, the composition of which is: 78% of PBT, 10% of halogen-free flame retardant, and 5% of nano-montmorillonite after the surface is activated by a coupling agent. , SMA 3%, anti-aging agent 1.5%, carbodiimide 1%, pyromellitic anhydride 0.3%, antioxidant 0.2%, pentaerythritol stearate 1%. Wherein, the PBT is polybutylene terephthalate; the halogen-free flame retardant is bisphenol A-bis(diphenyl phosphate) flame retardant and polydimethyl A compound of siloxane flame retardant; the SMA is a styrene-maleic anhydride copolymer; the aging resistance agent is the hindered amine light stabilizer HS-944 and HS-622 with a mass ratio of 1:1 Compound; the antioxidant is a compound of hindered phenolic antioxidant 1010 and phosphite antioxidant 168.

[0022] The preparation method is as follows: (1), dry PBT at 120°C-140°C for 4-6 hours, dry the halogen-free flame retardant at 80°C-85°C for 30-45 minutes, ...

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Abstract

The present invention discloses a halogen-free, fire retardation, strengthening and anti-aging PBT composite material, which comprises, by mass, 60-85% of PBT, 8-15% of a halogen-free fire retardation agent, 5-15% of a strengthening agent, 2-5%of SMA, 0.5-2% of an anti-aging agent, 0.5-1.5% of carbodiimide, 0.1-0.5% of pyromellitic dianhydride, 0.1-0.5% of an antioxidant, and 0.1-1% of pentaerythrityl tetrastearate, wherein the halogen-free fire retardation agent is the complex comprising a bisphenol A-bis(diphenyl phosphate) fire retardation agent and a polydimethylsiloxane fire retardation agent according to a mass ratio of 2:1. The halogen-free, fire retardation, strengthening and anti-aging PBT composite material of the present invention has beneficial effects of excellent halogen-free fire retardation, excellent mechanical property, good processability, stable performance, strong hydrolysis resistance, excellent electrical performance, and low cost, can be used in the fields of electronic appliances, household appliances, machinery parts and the like, and has good practical values and prospects.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant reinforced aging-resistant PBT composite material. Background technique [0002] PBT (polybutylene terephthalate) is a crystalline linear saturated polyester, which is widely used in automobiles, mechanical equipment, electronic appliances and other fields because of its good comprehensive performance. However, pure PBT has disadvantages such as poor flame retardancy, low notched impact strength, high brittleness, and easy aging, which greatly limit its application. Therefore, it is necessary to modify PBT in terms of flame retardancy, reinforcement, and aging resistance. Its range of applications and improved performance. Contents of the invention [0003] The purpose of the present invention is to provide a halogen-free flame-retardant reinforced anti-aging PBT composite material. [0004] The technical solution adopted by the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L83/04C08K13/06C08K5/523C08K5/103C08K3/26C08K3/36C08K3/30C08K3/34C08K7/14
Inventor 不公告发明人
Owner QINGDAO WANLI TECH
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