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Maleimide composition containing halogen substituted radical and preparation

An imide, resin-like technology, applied in the field of polymer heat-resistant flame-retardant resin composition and preparation, can solve the problems of poor heat-resistant and flame-retardant performance, poor thermal stability and the like

Active Publication Date: 2011-05-25
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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  • Maleimide composition containing halogen substituted radical and preparation

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Effect test

preparation example Construction

[0071] Preparation of additive emulsion: 5.0% potassium oleate soap, 10% antioxidant 1076, 5% plasticizer dibutyl phthalate and 80% desalted water are prepared in an emulsification tank at 75°C into an emulsion of additives.

[0072] Blending aid 1: lubricant EBS: antioxidant 1010: plasticizer magnesium stearate: decabromodiphenyl ether: Sb 2 o 3 The weight ratio is 1:2:1:10:15.

[0073] The weight ratio of blending aid 2: lubricant EBS: antioxidant 1010: plasticizer magnesium stearate is 1:2:1.

Embodiment 1

[0143] 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

[0145] 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 5.00 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 halogen substituent maleimide heat-resistant flame-retardant 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 the nitrile vinyl units. The halogen substituent maleimide heat-resistant flame-retardant resin composition prepared by the method has the advantages of high flame retardation and high heat resistance, and the resin composition is a heat-resistant flame-retardant material withexcellent 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 polymer heat-resistant and flame-retardant resin composition and a preparation method, in particular to a halogen substituent maleimide resin composition and a preparation method. 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. Its molecular chain contains halogen, and it 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 com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F279/04C08L25/00C08L35/06C08L51/04C08F212/02C08F222/40C08F2/24C08F2/38
Inventor 荔栓红李晶龚光碧梁滔武爱军邵卫李怀宁方伟付含琦赵继忠
Owner PETROCHINA CO LTD