Ablation-resistant polyphenylene sulfide composite material and preparation method thereof

By introducing composite ceramic fillers and composite fluxes into the polyphenylene sulfide material to form eutectic reactions and ceramic layers, the problem of insufficient ablation resistance performance of polyphenylene sulfide materials at high temperatures or combustion states is solved, and the ablation resistance and heat insulation effect of the material at high temperatures is improved.

CN119708841AActive Publication Date: 2025-03-28NANJING JULONG SCIENCE & TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411671582.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-03-28
Estimated Expiration
2044-11-21

AI Technical Summary

Technical Problem

Polyphenylene sulfide materials cannot meet the ablation resistance needs at high temperatures or combustion conditions, especially in battery pack cover products, the temperature after ignition can reach above 1000℃, and the intrinsic flame retardant characteristics of existing materials are insufficient.

Method used

A resistant polyphenylene sulfide composite material is used, which includes polyphenylene sulfide, composite porcelain filler and composite flux. The composite porcelain filler consists of glass fiber, mica powder and silica, and the composite flux consists of low-temperature glass powder and borax. Through eutectic reaction and the formation of the ceramic layer, the material obtains ablation resistance at high temperatures.

Benefits of technology

In high temperature or combustion states, the polyphenylene sulfide composite material forms a hard ceramic layer, preventing the material from being further burned through, significantly improving the ablation resistance and enhancing the thermal insulation effect of the material.

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Abstract

The invention relates to the field of polyphenylene sulfide materials, and particularly discloses an ablation-resistant polyphenylene sulfide composite material and a preparation method thereof. The ablation-resistant polyphenylene sulfide composite material is prepared from the following raw material components in parts by mass: 30 to 90 parts of polyphenylene sulfide, 20 to 60 parts of composite ceramic forming filler, 5 to 20 parts of composite fluxing agent and 0.1 to 5 parts of other auxiliaries, the composite ceramic forming filler comprises glass fibers, mica powder and silicon dioxide in a mass ratio of 1: (0.6-1.5): (0.01-0.1); the composite fluxing agent comprises low-temperature glass powder and borax in a mass ratio of (1-3): 1; the other auxiliary agents comprise an antioxidant, a coupling agent and a lubricant. The ablation-resistant polyphenylene sulfide composite material disclosed by the invention has the advantage of excellent ablation resistance.
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