High-flame-retardant antimony trioxide master batch

A technology of antimony trioxide and high flame retardancy, which is applied in the field of high flame retardancy antimony trioxide masterbatch, which can solve the problems of reduced flame retardancy, carcinogenicity, dermatitis, etc., achieves favorable flame retardancy and improves compatibility Effect

Active Publication Date: 2021-12-14
安徽星贝达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Antimony trioxide is mainly used as a flame retardant, but antimony trioxide powder is irritating to the nose, eyes and throat, and contact with the skin may Causes dermatitis, has the possibility of carcinogenic
And because of its small particle size, it may cause dust explosion during the production process. Therefore, it is usually chosen to mix antimony trioxide with other base materials to make a masterbatch and then use it as a flame retardant. The flame retardancy of the masterbatch will be reduced, so it is urgent to improve the flame retardancy of the masterbatch containing antimony trioxide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Synthetic example A

[0030] Add 1kg of hexafluorobisphenol A into a 5L reactor, add 3.3kg of epichlorohydrin, and start stirring.

[0031] Raise the temperature of the reaction kettle to 45°C, wait until the hexafluorobisphenol A is completely dissolved in epichlorohydrin, add 165g of sodium hydroxide, raise the temperature to 60°C, and continue the reaction for 4 hours, then start vacuuming, and control the vacuum degree to 20kPa, epichlorohydrin begins to reflux; In the reaction solution, add 693g of 50% sodium hydroxide aqueous solution dropwise at a constant speed, after the dropwise addition is completed, the temperature is raised to 75°C, and water removal begins. After the water removal is completed, the temperature is raised to 130°C, start to remove excess epichlorohydrin;

[0032] After epichlorohydrin was completely removed, add 2kg of methyl isobutyl ketone (MIBK) to the system, and 50% aqueous sodium hydroxide solution of 693g, after fully stirring, layering removes the water layer, ...

Synthetic example B1

[0035] Add 225g of the hexafluorobisphenol A epoxy resin obtained in Synthesis Example A and 326g of tetrabromobisphenol A into the system, raise the temperature to 85°C under stirring, add 6g of catalyst triphenylphosphine, and the system will naturally release Heat, control the temperature not to exceed 120°C.

[0036] Continue the temperature control reaction until the heat needs to be supplemented to keep warm. Start timing at 120°C, and then measure the epoxy value every two hours until the epoxy value <0.01 to stop the reaction, and the flame retardant synergist is obtained.

Synthetic example B2

[0038] Add 202g of hexafluorobisphenol A epoxy resin obtained in Synthesis Example A and 272g of tetrabromobisphenol A into the system, raise the temperature to 85°C under stirring, add 5.5g of catalyst triphenylphosphine, and the system will naturally Exothermic, control the temperature not to exceed 120°C.

[0039] Continue the temperature control reaction until the heat needs to be supplemented to keep warm. Start timing at 120°C, and then measure the epoxy value every two hours until the epoxy value <0.01 to stop the reaction, and the flame retardant synergist is obtained.

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Abstract

The invention discloses a high-flame-retardant antimony trioxide master batch. The high-flame-retardant antimony trioxide master batch comprises antimony trioxide, a flame-retardant synergist and a base material. By preparing the high-content antimony trioxide master batch, the irritation problem of antimony trioxide dust during rear-end feeding is solved, the flame-retardant synergist is a multi-halogen-group macromolecular polymer, and on the basis that the overall flame-retardant effect of the antimony trioxide master batch is improved, the compatibility of the high-content antimony trioxide and the base material is improved, so that the flame-retardant effect is better facilitated.

Description

technical field [0001] The invention relates to the field of antimony trioxide, in particular to a high flame-retardant antimony trioxide masterbatch. Background technique [0002] Antimony trioxide has many uses. It can be used in the manufacture of glass, enamel, medicine, cement, filler, mordant and fireproof coating, etc. It can also be widely used as a flame retardant in plastics, rubber, textiles, chemical fibers, Pigments, paints, electronics and other industries can also be used as catalysts and raw materials for petrochemical, synthetic fiber and other chemical industries. [0003] The main function of antimony trioxide is still used as a flame retardant, but antimony trioxide powder is irritating to the nose, eyes, and throat, and contact with the skin can cause dermatitis and may cause cancer. And because of its small particle size, it may cause dust explosion during the production process. Therefore, it is usually chosen to mix antimony trioxide with other base ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L67/02C08L77/06C08L55/02C08L63/02C08K3/22C08J3/22
CPCC08J3/226C08J2463/02C08J2423/06C08J2467/02C08J2477/06C08J2455/02C08K3/2279
Inventor 张乃斌宋云芳唐静
Owner 安徽星贝达新材料科技有限公司
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