一种低导热系数的高密度聚氨酯硬质泡沫及其制备方法
By using a polyol compounding system and modified magnesium hydroxide, combined with a low thermal conductivity foaming agent, an excellent thermal insulation and mechanical balance network for high-density rigid polyurethane foam was constructed. This solved the problems of high thermal conductivity and non-flame retardancy of high-density rigid polyurethane foam, achieving both low thermal conductivity and high flame retardancy.
CN122404657APending Publication Date: 2026-07-17ANHUI ZHENSHEN NEW MATERIALS CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANHUI ZHENSHEN NEW MATERIALS CO LTD
- Filing Date
- 2026-05-27
- Publication Date
- 2026-07-17
Abstract
本发明公开了一种低导热系数的高密度聚氨酯硬质泡沫及其制备方法，涉及聚氨酯材料技术领域。本发明低导热系数的高密度聚氨酯硬质泡沫至少包括以下质量份原料：聚醚多元醇40‑80份；聚酯多元醇20‑60份；扩链剂2‑8份；改性氢氧化镁5‑15份；催化剂0.5‑3份；泡沫稳定剂1‑4份；发泡剂5‑20份；异氰酸酯120‑200份；所述发泡剂至少包含反式‑1‑氯‑3,3,3‑三氟丙烯。本发明制备的高密度聚氨酯硬质泡沫具有低导热系数、高阻燃性和优异的力学性能，且闭孔率高、尺寸稳定性良好。
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