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Heat resisting flame retardant resin composition and preparation thereof

A technology of flame retardant resin and composition, which is applied in the field of preparation of halogen substituted maleimide resin composition, and can solve the problems of poor thermal stability, poor heat resistance and flame retardant performance, etc.

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

[0009] The above patented methods use small molecule flame retardants or small molecule halogen-containing flame retardants, there are additive migration phenomena to varying degrees, the heat resistance and flame retardancy are not good, and the alloys prepared with PVC or CPVC have poor thermal stability. Shortcomings

Method used

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  • Heat resisting flame retardant resin composition and preparation thereof
  • Heat resisting flame retardant resin composition and preparation thereof
  • Heat resisting flame retardant resin composition and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0119] Mix the heat-resistant and flame-retardant resin emulsion A1 with the emulsion of ABS emulsion B1 and additives at a ratio of 10:55:0.82, 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 45 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 parts of the dried A1 and B1 mixture with 35 parts of HH and 5.80 parts of blending aid 1 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

[0121]Mix the heat-resistant and flame-retardant resin emulsion A2 with the emulsion of ABS emulsion B1 and additives at a ratio of 25:50:0.80, 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 45 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 parts of the dried A1 and B1 mixture with 25 parts of BHF and 5.30 parts of blending aid 1 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

[0123] Mix the heat-resistant and flame-retardant resin emulsion A3 with the emulsion of ABS emulsion B1 and additives according to the 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 uniform feeding speed and finish adding in 30~45 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 75 parts of the dried A1 and B1 mixture with 25 parts of HH-C300 and 3.90 parts of blending aid 1 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.

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Abstract

The invention provides a halogen substituent maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. Based on 100 parts by weight, the resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit and a nitrile vinyl unit and 5-35 parts of a binary copolymer of aryl ethylene monomers and nitrile vinyl monomers. The halogen substituent maleimide heat-resistant flame-retardant resin composition prepared by the method has the advantages of flame retardation and high heat resistance, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared 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 heat-resistant and flame-retardant resin composition and a preparation method, in particular to a preparation method of a halogen substituent maleimide 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 alloy method mainly refers to the PC / ABS alloy. The copolymerization modification method is mainly composed of two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/00C08L35/06C08L51/04C08F212/02C08F222/40C08F2/24C08F2/38C08F279/04
Inventor 荔栓红赵继忠李炳泉吴宇武爱军李树毅梁滔王锋李怀宁桂强
Owner PETROCHINA CO LTD
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