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环保型湿气固化聚氨酯热熔胶及其制备工艺与应用

InventionUnknown
10Claims · 3 independent
§ Ⅰ

Dossier Overview

Inventor

宋仁松; 张帆; 周路明

Filing Date

Aug 18, 2026

Publication Date

Oct 27, 2026

IPC Classification

C09J 175/04 (2006.01)E04D 5/10 (2006.01)E04B 1/66 (2006.01)E04B 1/80 (2006.01)B32B 7/12 (2006.01)C09J 11/04 (2006.01)C08G 18/44 (2006.01)C08G 18/42 (2006.01)C08G 18/48 (2006.01)C08G 18/76 (2006.01)

本发明涉及聚氨酯粘合剂技术领域,具体为环保型湿气固化聚氨酯热熔胶及其制备工艺与应用。采用CO基聚碳酸亚丙酯二元醇与生物基腰果酚原料,低碳环保;腰果酚基多元醇‑MDI预加合物利用酚羟基与脂肪族仲羟基的反应活性差异,在湿气固化过程中缓冲表层交联速率、延缓表层暴聚结皮,为湿气向胶层深部渗透保留时间窗口;硬脂酸镁表面改性纳米氧化镁作为疏水性纳米增强填料与CO化学吸附剂,形成缓聚‑窗口期排泡‑室温固定时序协同机制,解决厚胶层、致密基材粘接时固化不透、内部气孔缺陷问题。经多元醇脱水、控温预聚、超声分散、真空脱泡制胶,可双螺杆连续生产,胶体储存稳定。

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