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Weather resistant heat resisting flame retardant resin composition and preparation thereof

A flame-retardant resin and weather-resistant technology, which is applied in the field of preparation of weather-resistant halogen-substituted maleimide-based heat-resistant flame-retardant resin compositions, can solve the problem of poor thermal stability, poor weather-resistant, heat-resistant, flame-retardant performance, etc. question

Active Publication Date: 2009-08-12
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The above patented methods use small molecule flame retardants or small molecule halogen-containing flame retardants, and weather resistance additives. There are additive migration phenom

Method used

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  • Weather resistant heat resisting flame retardant resin composition and preparation thereof
  • Weather resistant heat resisting flame retardant resin composition and preparation thereof
  • Weather resistant heat resisting flame retardant resin composition and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0141] Mix the heat-resistant and flame-retardant resin emulsion A1 with the emulsion of ABS emulsion B1 and additives at a ratio of 9:56:0.82, and add 100 parts of the mixed emulsion continuously at 25°C until the temperature is 65°C while stirring. In the aqueous solution of 300 parts of 5 ‰ of magnesium sulfate at ℃, maintain a uniform feeding speed and finish adding within 30 to 35 minutes. After adding the emulsion, raise the temperature of the mixture to 95°C and maintain it for 1 hour before cooling down to complete the coagulation process. The condensed slurry is filtered, washed with desalted water, and then dried to form a mixture of A1 and B1. Mix 65.82 parts of the dried A1 and B1 mixture with 35 parts of C2 and 5.8 parts of blending aids in a high-speed blender. The blend can be passed through a twin-screw extruder to obtain a heat-resistant and flame-retardant resin composition product. The performance of the product is shown in Table 2.

Embodiment 2

[0143] Mix the heat-resistant and flame-retardant resin emulsion A2 with the emulsion of ABS emulsion B1 and additives at a ratio of 28:47:0.80, and add 100 parts of the mixed emulsion continuously at 30°C until the temperature is 60°C In the aqueous solution of 100 parts of 2 ‰ of magnesium sulfate, maintain a uniform feed rate and finish adding within 30 to 35 minutes. After adding the emulsion, raise the temperature of the mixture to 97°C and maintain it for 1 hour before cooling down to complete the coagulation process. The condensed slurry is filtered and washed with desalted water, then dried and set aside. Mix 75.8 parts of dried A1 and B1 mixture with 25 parts of C1 and 5.8 parts of blending aid in a high-speed blender. The blend can be passed through a twin-screw extruder to obtain a heat-resistant and flame-retardant resin composition product. The performance of the product is shown in Table 2.

Embodiment 3

[0145] Mix the heat-resistant and flame-retardant resin emulsion A3 with the emulsion of ABS emulsion B1 and additives at a ratio of 35:40:1.20, and add 100 parts of the mixed emulsion continuously at 30°C until the temperature is 70°C In the aqueous solution of 500 parts of 8 ‰ of magnesium sulfate, maintain a uniform feed rate and finish adding within 30 to 35 minutes. After adding the emulsion, raise the temperature of the mixture to 100°C and maintain it for 1 hour before cooling down to complete the coagulation process. The condensed slurry is filtered and washed with desalted water, then dried and set aside. Mix 76.2 parts of dried A1 and B1 mixture with 25 parts of C3 and 5.8 parts of blending aid in a high-speed blender. The blend can be passed through a twin-screw extruder to obtain a heat-resistant and flame-retardant resin composition product. The performance of the product is shown in Table 2.

[0146] Embodiment 4~7, only the kind and consumption of A, B, C are...

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Abstract

The invention provides a weatherproof heat-resistant flame-retardant resin composition and a preparation method thereof. The resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of acrylic ester elastomer graft aryl ethylene monomers and nitrile vinyl monomers and 5-35 parts of a binary copolymer of aryl ethylene monomers and the nitrile vinyl monomers. The prepared weatherproof heat-resistant flame-retardant resin composition has the advantages of nice appearance, good weatherability, high heat resistance and flame retardation, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared weatherproof heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant properties, the resin composition can be used alone for preparing high heat-resistant and flame-retardant parts of automobiles and household electrical appliances.

Description

technical field [0001] The invention relates to a weather-resistant heat-resistant flame-retardant resin composition and a preparation method thereof, in particular to a preparation method of a weather-resistant halogen substituent maleimide heat-resistant flame-retardant resin composition. Background technique [0002] The free radical copolymer of maleimide monomers with halogen substituents, because of the planar five-membered ring structure in the molecular chain, can effectively inhibit the rotation of the chain, so it has high structural rigidity and thermal stability. The molecular chain contains halogen, and has good flame retardancy on the basis of heat resistance, so it has attracted widespread attention. [0003] The preparation of heat-resistant and flame-retardant ABS resin includes alloy method and copolymerization modification method, among which copolymerization modification method is a better technical route. The copolymerization modification method is main...

Claims

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Application Information

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IPC IPC(8): C08L25/00C08L35/06C08L51/04C08F212/02C08F222/40C08F2/24C08F2/38C08F265/04
Inventor 荔栓红吴宇李炳泉张守汉丛日新付含琦李晶桂强赵洪国樊建民
Owner PETROCHINA CO LTD
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