High-surface-quality super-flexible PPS-based pipe and method for preparing composite material thereof

By using a co-extrusion method with high melt strength polyphenylene sulfide and toughening agents, the problem of traditional polyphenylene sulfide pipe materials being hard and brittle was solved, and ultra-flexible PPS-based pipes with high surface quality were prepared, possessing good flexibility and surface smoothness.

CN122404986APending Publication Date: 2026-07-17SHANDONG MINGQUAN SPECIAL NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG MINGQUAN SPECIAL NEW MATERIALS CO LTD
Filing Date
2026-06-04
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional polyphenylene sulfide (PPS) pipe material preparation processes suffer from problems such as hardness and brittleness, high processing difficulty, high cost, poor surface condition, and unstable product performance, making it difficult to prepare ultra-flexible PPS-based pipes with high surface quality.

Method used

Using polyphenylene sulfide raw materials with high melt strength and narrow molecular weight distribution, combined with toughening agents, coupling agents, dispersants, lubricants and antioxidants, composite materials are prepared by blending extrusion to form ultra-flexible PPS base pipes with smooth and uniform inner and outer walls.

Benefits of technology

This technology achieves high flexibility, smoothness and uniformity of inner and outer walls in the pipes, reduces processing difficulty and equipment requirements, and improves the dimensional stability and mechanical properties of the products.

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Abstract

本发明公开了一种高表面质量的超柔性PPS基管材及其复合材料制备方法,涉及高分子材料领域。本发明提供了一种用于柔性管材的聚苯硫醚复合材料,复合材料按重量份计包括以下组分:聚苯硫醚60‑80份、增韧剂10‑30份、偶联剂0.5‑1.5份、分散剂1‑3份、润滑剂2‑4份、吸酸剂0.5‑1.5份、增容剂2‑4份、抗氧剂0.1‑0.5份。本发明从聚苯硫醚原料出发,选用高熔体强度、分子量分布窄的超线性聚苯硫醚做骨架,选用低结晶度、高分子链活性、高无定形区含量的支化PPS提高复合材料韧性。本发明制得的高表面质量的超柔性PPS基管材内外表面光滑无毛刺,冷却后具有高光泽度和均匀纹理,盘绕性优异。
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