Glass fiber reinforced flame-retardant styrene-acrylonitrile copolymer/ polybutylene terephthalate (AS/ PBT) material and preparation method thereof

A technology of glass fiber and glass fiber, which is applied in the field of polymer processing, can solve the problems of increased material cost, complicated process, and cost provision, and achieve good flame retardancy and broad application prospects

Inactive Publication Date: 2012-07-11
SHANGHAI KINGFA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it adds glass fiber impregnation treatment steps, especially the latter patent, which involves expensive silane coupling agent and glass fiber impregnation treatment steps, the process is complicated and the cost is further improved
In addition, Chinese patent CN128995C adopts the method of introducing polycarbonate (PC) and PC and MBS or styrene-butadiene-styrene copolymer (SBS) into SMA, AS and glass fiber, which can effectively improve the bending modulus of composite materials. quantity, tensile strength, but it uses higher priced PC, which increases the material cost
None of the above prior art mentions a solution for improving the flame retardant performance of the material, so the flame retardant reinforced AS of the present invention has a good application prospect

Method used

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  • Glass fiber reinforced flame-retardant styrene-acrylonitrile copolymer/ polybutylene terephthalate (AS/ PBT) material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: in high-speed mixer, add 55% AS, 10% PBT, 10% FR245, 3% Sb by weight percentage 2 o 3 , 0.3% SN3306, 0.2% antioxidant and 5% compatibilizer are mixed evenly at room temperature, fed into the twin-screw extruder through a precision metering feeder, and added in the fourth temperature zone of the twin-screw extruder 16.5% glass fiber by weight. The length-to-diameter ratio of the twin-screw extruder is 40:1, the temperature of the screw barrel in the 1st to 4th zones is 190 to 200°C, the temperature in the 5th to 9th zones is 210 to 230°C, the temperature of the head is 210°C, and the screw speed is 350~450rpm.

Embodiment 2

[0038] Embodiment 2: in high-speed mixer, add 50% AS, 10% PBT, 10% FR245, 6% Sb by weight percentage 2 o 3 , 0.3% SN3306, 0.5% antioxidant and 5% compatibilizer are mixed evenly at room temperature, fed into the twin-screw extruder through a precision metering feeder, and added in the fourth temperature zone of the twin-screw extruder 18.2% by weight glass fibers. The length-to-diameter ratio of the twin-screw extruder is 40:1, the temperature of the screw barrel in the 1st to 4th zones is 190 to 200°C, the temperature in the 5th to 9th zones is 210 to 230°C, the temperature of the head is 210°C, and the screw speed is 350~450rpm.

Embodiment 3

[0039] Embodiment 3: in high-speed mixer, add 35% AS, 20% PBT, 11% FR245, 7% Sb by weight percentage 2 o 3 , 0.4% SN3306, 0.7% antioxidant and 5% compatibilizer are mixed evenly at room temperature, fed into the twin-screw extruder through a precision metering feeder, and added in the fourth temperature zone of the twin-screw extruder 20.9% glass fiber by weight. The length-to-diameter ratio of the twin-screw extruder is 40:1, the temperature of the screw barrel in the 1st to 4th zones is 190 to 200°C, the temperature in the 5th to 9th zones is 210 to 230°C, the temperature of the head is 210°C, and the screw speed is 350~450rpm.

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Abstract

The invention relates to a glass fiber reinforced flame-retardant resin, in particular to a glass fiber reinforced flame-retardant styrene-acrylonitrile copolymer / polybutylene terephthalate (AS / PBT) material and a preparation method thereof, and belongs to the field of polymers. The material comprises the following components in percentage by weight: 25 to 65 percent of AS, 5 to 25 percent of PBT, 10 to 30 percent of glass fiber, 5 to 20 percent of bromine-based flame retardant, 2 to 15 percent of antimony-based flame retardant, 0.1 to 1.4 percent of drip-proof additive, 0.3 to 1 percent of antioxidant, and 3 to 10 percent of compatilizer. Compared with the prior art, the invention has the advantages that: the glass fiber reinforced flame-retardant AS / PBT modified resin material keeps the strength of glass fiber reinforced flame-retardant AS / PBT resin, has good flame-retardant performance, can be widely applied in the field of electronic-electrical equipment and the like with flame-retardant, climate-resistant and heat-resistant requirements, and has a broad application prospect.

Description

technical field [0001] The invention relates to a glass fiber reinforced flame retardant resin, in particular to a glass fiber reinforced flame retardant AS / PBT material and a preparation method thereof, belonging to the field of polymer processing. Background technique [0002] Styrene-acrylonitrile resin (hereinafter referred to as AS) is a general-purpose styrene-based resin that can be directly injected into plastic products, and can also be used as a raw material for acrylonitrile-butadiene-styrene copolymer (ABS). Glass fiber reinforced AS has good application value in the field of household appliances due to its good processing performance, dimensional stability and tensile strength, such as electrical sockets, TV bases and other electrical shells, axial flow and cross-flow fan blades in air conditioners etc. However, the general-purpose glass fiber reinforced AS products cannot meet the application requirements in terms of tensile strength, flexural strength and mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/12C08L67/02C08L35/06C08K13/04C08K7/14B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/875B29C48/92B29C2948/92704B29C2948/92876B29C2948/92895B29C2948/92952
Inventor 田晋丽胡付余张现军杨定吉甫
Owner SHANGHAI KINGFA SCI & TECH
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