开发与应用

聚氨酯胶粘剂热稳定性研究进展

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  • 西华大学材料科学与工程学院,成都610039
莫钦(1996-),男,硕士研究生,主要研究方向为聚氨酯及其复合材料,E-mail:moqin2020@163.com。

收稿日期: 2020-10-09

  修回日期: 2021-01-23

  网络出版日期: 2021-05-10

基金资助

四川省教育厅重点项目(12ZA15);教育部“春晖计划”科研项目(Z2010093);“西华杯”大学生创新创业项目(2020136)

Research progress on thermal stability of PUR adhesive

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  • School of Materials Science and Engineering,Xihua University,Chengdu 610039

Received date: 2020-10-09

  Revised date: 2021-01-23

  Online published: 2021-05-10

摘要

聚氨酯胶粘剂具有化学粘合力强、耐超低温、耐磨、耐溶剂等优点,在航天、建筑、电子工业等领域应用广泛。但是聚氨酯胶粘剂存在热稳定性差的缺陷,通过改性方法可以提高其热稳定性。围绕交联改性(与丙烯酸酯类单体、环氧类树脂及异氰酸酯三聚体共聚)、引入耐热基团(引入苯环、硅氧键、酰亚胺及碳硼烷)、与无机纳米材料(纳米二氧化硅、纳米黏土及纳米碳材料)复合这3种改性方法,综述了近年来国内外聚氨酯胶粘剂热稳定性的研究进展,并对提高聚氨酯胶粘剂热稳定性的研究方向进行了展望。

本文引用格式

莫钦, 张雅峰, 熊林颖, 杨煜培, 彭娅 . 聚氨酯胶粘剂热稳定性研究进展[J]. 化工新型材料, 2021 , 49(3) : 207 -211 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.03.046

Abstract

Polyurethane(PUR) adhesive has the advantages of strong chemical adhesion,ultra-low temperature resistance,abrasion resistance,solvent resistance,etc.,and is widely used in aerospace,construction and electronics industry.However,PUR adhesives have the defect of poor thermal stability,and it can be improved by modification methods.The research progress of the thermal stability of PUR adhesives at home and abroad in recent years was reviewed around three modification methods including crosslinking modification (copolymerization with acrylate monomers,epoxy resins and isocyanate trimers),the introduction of heat-resistant groups (the introduction of benzene ring,silicon-oxygen bond,imide and carbon borane),composite with inorganic nano materials (nano silica,nano clay and nano carbon materials).The development trend of improving the thermal stability of PUR adhesives was prospected.

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