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Glass fiber reinforced flame-retardant heat-resistant PBT (polybutylene terephthalate) composite material

A composite material and heat-resistant technology, which is applied in the field of glass fiber-reinforced flame-retardant and heat-resistant PBT composite materials, can solve the problems of low strength, poor heat resistance, and application limitations of PBT, and achieve high flame-retardant energy efficiency, good appearance, and mechanical strength. powerful effect

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, PBT has disadvantages such as low strength, poor heat resistance, and flammability, which limit its application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A glass fiber-reinforced flame-retardant and heat-resistant PBT composite material, the components of which are proportioned by mass percentage: PBT 40%, ABS 15%, alkali-free glass fiber 15%, poly 2,6-dibromophenylene ether 10%, antimony trioxide 5%, butadiene and acrylonitrile polar polymer NBR 10%, methyl methacrylate-glycidyl methacrylate-propylene ethyl ester terpolymer 4%, Polysiloxane 0.5%, other additives 0.5%, among which, the glue content in ABS accounts for 15wt% ~ 30wt%.

[0020] Preparation method: (1) Dry PBT at 120°C-130°C for 4-6 hours, and dry ABS at 80°C-85°C for 2-4 hours; (2) Weigh the dried PBT according to the weight ratio and ABS, after mixing evenly, then add poly 2,6-dibromophenylene ether, antimony trioxide, butadiene and acrylonitrile polymer polar polymer NBR, formazan methyl acrylate-glycidyl methacrylate-propylene ethyl ester terpolymer, polysiloxane and other additives, and then add them into the high-speed mixer and mix them thoroughly fo...

Embodiment 2

[0022] A glass fiber-reinforced flame-retardant and heat-resistant PBT composite material, the components of which are proportioned by mass percentage: PBT 60%, ABS 10%, alkali-free glass fiber 10%, poly 2,6-dibromophenylene ether 8%, antimony trioxide 4%, polymer thermoplastic polyurethane TPU 5%, maleic anhydride grafted acrylonitrile-butadiene-styrene terpolymer 2%, calcium stearate 0.5%, other additives 0.5%, of which, the glue content in ABS accounts for 15wt% ~ 30wt%.

[0023] Preparation method: (1) Dry PBT at 120°C-130°C for 4-6 hours, and dry ABS at 80°C-85°C for 2-4 hours; (2) Weigh the dried PBT according to the weight ratio and ABS, after mixing evenly, then add poly 2,6-dibromophenylene ether, antimony trioxide, polymer thermoplastic polyurethane TPU, maleic anhydride grafted acrylonitrile- Butadiene-styrene terpolymer, calcium stearate and other additives are then added to the high-speed mixer and mixed thoroughly for 2 to 5 minutes; (3) Add the above mixture to...

Embodiment 3

[0025] A glass fiber-reinforced flame-retardant and heat-resistant PBT composite material, the components of which are proportioned by mass percentage: PBT 20%, ABS 20%, alkali-free glass fiber 30%, poly 2,6-dibromophenylene ether 10%, antimony trioxide 5%, ethylene-propylene-non-conjugated diene copolymer EPDM 10%, styrene-maleic anhydride random copolymer 4%, polysiloxane 0.8%, other additives 0.2%, Among them, the glue content in ABS accounts for 15wt% to 30wt%.

[0026] Preparation method: (1) Dry PBT at 120°C-130°C for 4-6 hours, and dry ABS at 80°C-85°C for 2-4 hours; (2) Weigh the dried PBT according to the weight ratio and ABS, after mixing evenly, add poly 2,6-dibromophenylene ether, antimony trioxide, ethylene-propylene-non-conjugated diene copolymer EPDM, styrene- Maleic anhydride random copolymer, polysiloxane and other additives are then added to the high-speed mixer and mixed thoroughly for 2 to 5 minutes; (3) Add the above mixture to the main feeding port of th...

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Abstract

The invention discloses a glass fiber reinforced flame-retardant heat-resistant PBT (polybutylene terephthalate) composite material comprising the following components in percentage by mass: 20-60% of PBT, 10-30% of ABS (acrylonitrile-butadiene-styrene), 10-30% of glass fibers, 8-15% of a polymeric flame retardant, 2-10% of antimony trioxide, 5-15% of an elastomer, 2-5% of a compatilizer, 0.1-1% of a lubricating dispersant and 0.1-0.5% of other additives. The glass fiber reinforced flame-retardant heat-resistant PBT composite material disclosed by the invention has the beneficial effects that glass fiber enhancement, synergistic flame retarding of composite flame retardant and antimony trioxide and ABS modifying and toughening are adopted to ensure that the prepared PBT composite material has the characteristics of good comprehensive performance, strong mechanical properties, good heat resisting effect, high flame retarding efficiency, stable performance, good appearance, low cost, convenience in processing and the like.

Description

technical field [0001] The invention relates to a polymer material, in particular to a glass fiber reinforced flame-retardant and heat-resistant PBT composite material. Background technique [0002] Polybutylene terephthalate (PBT) is a crystalline thermoplastic polyester resin with excellent heat resistance, weather resistance, chemical resistance, good electrical properties, low water absorption and good gloss. It is widely used in electronic appliances, auto parts, machinery, household goods and other fields. However, PBT has disadvantages such as low strength, poor heat resistance, and easy combustion, so its application is limited. Contents of the invention [0003] The object of the present invention is to provide a glass fiber reinforced flame-retardant and heat-resistant PBT composite material with high impact strength, good heat resistance, high flame retardancy and strong wear resistance. [0004] The technical solution adopted by the present invention to solve...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L55/02C08L9/02C08L75/04C08L53/02C08L23/16C08K9/06C08K7/14C08K3/22
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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