Recovery polypropylene-based antibacterial antistatic coating material and preparation method thereof, antibacterial antistatic non-woven fabric composite coated product and application thereof

By employing molecular chain reconstruction technology combining peroxides and epoxy chain extenders, and integrating a stable system with antibacterial and antistatic functions, the problems of melt strength reduction and functional deactivation after recycling waste polypropylene have been solved, realizing the high-value utilization of high-performance coating materials suitable for a variety of high-end material applications.

CN122404850APending Publication Date: 2026-07-17合肥中科科乐新材料有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
合肥中科科乐新材料有限责任公司
Filing Date
2026-05-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are unable to effectively utilize waste polypropylene materials, especially BOPP/CPP packaging films, and cannot meet the requirements for high-end coating materials. Furthermore, the melt strength of recycled waste polypropylene decreases and the molecular weight distribution becomes uneven, leading to deterioration in processing performance.

Method used

By using a combination of compound peroxide and epoxy chain extender, defects in the polypropylene molecular chain are repaired and recycled through controlled degradation and directional chain extension, forming a narrow-distribution long branched chain structure. At the same time, the antibacterial and antistatic functions are stabilized through grafting and phase isolation technology to avoid complexation inactivation.

Benefits of technology

It enables the high-value utilization of recycled polypropylene, improves melt strength and functional stability, meets the requirements of high-end materials, and is suitable for food packaging, electronic component encapsulation, and medical protective materials.

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Abstract

本发明提供了一种回收聚丙烯基抗菌抗静电涂覆材料及其制备方法、抗菌抗静电无纺布复合涂覆制品及其应用,属于高分子材料回收利用与复合材料技术领域。该回收聚丙烯基抗菌抗静电涂覆材料,以质量份数计,包括:处理后的回收聚丙烯68~94份、低密度聚乙烯5~8份、马来酸酐接枝聚丙烯0.8~1.6份、抗菌母粒0.6~1.8份、抗静电母粒0.6~1.8份、环氧扩链剂0.2~0.6份,以及第一过氧化物和第二过氧化物的复配物,复配物为0.05~0.12份。本发明采用复配过氧化物,针对老化缺陷位点优先可控断链,并结合环氧扩链剂定向构建长支链结构,从而兼顾熔指调控和熔体强度。
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