Research progress in silicone⁃modified epoxy resin

doi:10.19491/j.issn.1001-9278.2025.01.020

Abstract

Abstract:

At present， there are two main ways to modify epoxy resin from silicone， including physical blending and chemical copolymerization. Chemical copolymerization modification has been widely used and studied because of its excellent high⁃temperature and corrosion resistances. This paper introduced the new development process of silicone chemical copolymerization⁃modified epoxy resin and briefly described its reaction mechanism. The research progress in different modification methods was analyzed， and the applications for electronic and electrical packaging materials， adhesives， coatings and other fields were briefly described. Finally， the current problems in the silicone⁃modified epoxy resin were proposed， and its future development direction was prospected.

Key words: silicone, polyhedral oligomeric sesquioxane, silane coupling agent, epoxy resin, modification

CLC Number:

TQ325.12

WANG Bo, ZHANG Qian, GAO Yan, WU Longkun, LEI Ying, LIU Nianjie. Research progress in silicone⁃modified epoxy resin[J]. China Plastics, 2025, 39(1): 126-131.

Figures/Tables 10

双酚A型EP

特征：价格低廉、原料易得、产量高、黏结强度高、力学性能好

双酚F型EP

特征：黏远低于双酚A型EP，适用于低黏度需求领域

双酚S型EP

特征：通常为固体，经过固化后软化点高，适用于耐高温领域

缩水甘油胺型EP

特征：环氧值高、固化后的EP有较高的耐热性、适用于高温胶黏剂领域

Tab.1. Typical epoxy resins and their characteristics［14⁃15］

键	键长（A）	键能/kJ·mol^-1	键角
Si—O	1.64	452	130~160
C—O	1.43	360	110
C—C	1.34	356	109

Tab.2. Data on the structural properties of polysiloxanes［19⁃20］

Fig.1. Epoxy/PEO⁃POSS blending mechanism diagram［24］

Fig.2. Schematic diagram of different strategies to obtain vinyl urethane epoxy materials［28］

Fig.3. Schematic diagram of siliconized epoxy resin preparation （SER）［30］

Fig.4. Schematic diagram of the preparation of silicone coatings for SER bridging［32］

Fig.5. Schematic diagram of the synthesis process of VPMQ［33］

Fig.6. Schematic diagram of the synthesis of POSS terminated PCL［34］

Fig.7. Schematic diagram of the structure and synthesis pathways of two epoxy⁃containing functional groups DDSQ［14］

Fig.8. Schematic diagram of bio⁃based epoxy resins SIEEP4 and SIEEP2［35］

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