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Halogen-free flame-retardant high toughness modified polycarbonate composition

A polycarbonate and composition technology, which is applied in the field of halogen-free flame-retardant and high-toughness modified polycarbonate composition, can solve the problems of decreased impact resistance, limited promotion and utilization, low flame retardancy, etc., and achieves impact resistance efficiency. High performance, good thermal stability and strong processing adaptability

Inactive Publication Date: 2015-05-20
殷培花
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polycarbonate (PC) is an engineering plastic with excellent performance. It has the advantages of good weather resistance, good dimensional stability, and heat resistance. However, PC is prone to stress cracking and poor solvent resistance. It is prone to stress in solvents and alkaline environments. Cracking and swelling, reduced impact resistance under low temperature conditions, low flame retardancy (oxygen index is 21% to 24%), etc., which greatly limit its further popularization and utilization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A halogen-free flame-retardant high-toughness modified polycarbonate composition, the composition of which is composed of 78% polycarbonate, 10% compound halogen-free flame retardant, methacrylate-acrylate Copolymer (ACR) 8%, styrene-maleic anhydride-acrylate terpolymer (GMA-g-SMA) 3%, hindered phenolic antioxidant 1010 and phosphite antioxidant 168 by mass 1:1 ratio of compound 0.2%, pentaerythritol stearate (PETS) 0.8%. Among them, the compound halogen-free flame retardant is composed of 60wt% bisphenol A-bis(diphenyl phosphate) (BDP), 30wt% polydimethylsiloxane flame retardant and 10wt% polytetrafluoroethylene A compound halogen-free flame retardant made by mixing vinyl fluoride (PTFE).

[0019] Preparation method: (1) Dry the polycarbonate in a blast dryer at 110°C to 130°C for 3 to 4 hours, and set aside for use; (2) Weigh 60wt% bisphenol A- Add bis(diphenyl phosphate) (BDP), 30wt% polydimethylsiloxane flame retardant and 10wt% polytetrafluoroethylene (PTFE), add...

Embodiment 2

[0021] A halogen-free flame-retardant high-toughness modified polycarbonate composition, the components of which are: 85% polycarbonate, 5% compound halogen-free flame retardant, methyl methacrylate-butylene Diene-styrene terpolymer (MBS) 6%, styrene-maleic anhydride-acrylate terpolymer (GMA-g-SMA) 3%, hindered phenolic antioxidant 1010 and sub- Phosphate antioxidant 168 is 0.4% of the compound at a ratio of 1:1 by mass, and 0.6% of pentaerythritol stearate (PETS). Among them, the compound halogen-free flame retardant is composed of 60wt% resorcinol bis(diphenyl phosphate) (RDP), 30wt% polysilsesquioxane flame retardant and 10wt% polytetrafluoroethylene A compound halogen-free flame retardant made by mixing ethylene (PTFE).

[0022] Preparation method: (1) Dry polycarbonate in a blower dryer at 110°C to 130°C for 3 to 4 hours, and set aside; (2) Weigh 60wt% resorcinol according to the weight ratio Add bis(diphenyl phosphate) (RDP), 30wt% polysilsesquioxane flame retardant an...

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Abstract

The invention discloses a halogen-free flame-retardant high toughness modified polycarbonate composition, which comprises the following components by weight: 60%-85% of polycarbonate, 5%-15% of a complex halogen-free flame retardant, 5%-10% of a toughening agent, 2%-4% of a compatilizer, 0.1%-0.5% of an antioxidant and 0.1%-1.5% of a lubricant. The invention has the beneficial effect that compared with the prior art, halogen-free flame-retardant high toughness modified polycarbonate composition prepared by the invention has excellent halogen-free flame-retardant and environmental protection functions, and has the advantages of grade UL94V-0, no molten drop, no migration, good flame retardant durability, environment-friendliness, safety, high anti-shock efficiency, good thermal stability, processing adaptability, excellent electrical property, high temperature resistance and corrosion resistance; therefore, the composition has good application prospects in the fields of automobile, electronics, machinery, chemical industry and building materials.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant high-toughness modified polycarbonate composition. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance. It has the advantages of good weather resistance, good dimensional stability, and heat resistance. However, PC is prone to stress cracking and poor solvent resistance. It is prone to stress in solvents and alkaline environments. Cracking and swelling, reduced impact resistance under low temperature conditions, low flame retardancy (oxygen index is 21% to 24%), etc., greatly limit its further popularization and utilization. Contents of the invention [0003] The object of the present invention is to provide a halogen-free flame-retardant high-toughness modified polycarbonate composition. [0004] The technical solution adopted by the present invention to solve the technical problem is: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L83/04C08L27/18C08K5/00C08K5/523C08K5/134C08K5/526C08K5/103B29B9/06
CPCC08L69/00B29B9/06C08L2201/02C08L2201/22C08L2205/035
Inventor 不公告发明人
Owner 殷培花
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