A polymer material, its preparation method and use

By compounding long-lasting antistatic agents and conductive carbon materials into PVC materials, a highly efficient conductive network is constructed, which solves the problem of excessive conductive filler addition and poor antistatic performance in PVC materials, and achieves a significant improvement in antistatic performance and mechanical properties.

CN122404869APending Publication Date: 2026-07-17CHINA ENERGY INVESTMENT CORP LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ENERGY INVESTMENT CORP LTD
Filing Date
2025-01-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing PVC materials require a large amount of conductive filler and have poor long-term antistatic properties, making them difficult to use in environments containing dust and flammable gases.

Method used

Polymer materials are prepared by compounding long-lasting antistatic agents with conductive carbon materials and using polyvinyl chloride compositions, including polyvinyl chloride material, long-lasting antistatic agents and conductive fillers, in a weight ratio of 100:(1-30):(1-5). Components such as polyether amide polymers and carbon nanotubes are selected to construct a highly efficient conductive network.

Benefits of technology

It significantly improves the antistatic and mechanical properties of PVC materials, reduces the amount of conductive filler added, improves processing performance, achieves a surface resistivity of 104 Ω·cm, provides long-lasting conductivity, and has low requirements for environmental humidity.

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Abstract

This invention relates to a polymer material, its preparation method, and its application. The polymer material is prepared from a polyvinyl chloride (PVC) composition comprising a PVC resin, a long-lasting antistatic agent, and a conductive filler. The weight ratio of the PVC resin, the long-lasting antistatic agent, and the conductive filler is 100:(1-30):(1-5). The long-lasting antistatic agent is selected from one or more of polyether amide polymers and sodium sulfonate grafts. The conductive filler is selected from one or more of carbon nanotubes, carbon fibers, and graphene. This invention, by combining a long-lasting organic antistatic agent with a conductive carbon material, achieves two advantages: firstly, the long-lasting organic antistatic agent improves the conductivity of the conductive carbon material and the matrix, thereby constructing a highly efficient conductive network with long-lasting conductivity and significantly improved antistatic performance; secondly, it reduces the amount of conductive filler added, improving the processing performance of rigid PVC materials.
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Citation Information

Patent Citations

  • Preparation method of antistatic hard polyvinyl chloride material

    CN107629355A

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  • 105 DEG C semi-conductive PVC material for automobile coaxial cable and preparation method of 105 DEG C semi-conductive PVC material

    CN110483915A