Study on green synthesis of dicyclopentadiene phenol resin for electronics

doi:10.19936/j.cnki.2096-8000.20230928.011

Abstract

Abstract: In this paper, dicyclopentadiene (DCPD) and phenol were used as raw materials, and a new strong acidic cation exchange resin made by ourselves was used as the catalyst for alkylation reaction. The reaction of phenol with DCPD was catalyzed to produce dicyclopentadiene phenol resin (DPR). Using cation exchange resin to replace the traditional fluorine-containing catalyst as the catalyst of alkylation reaction reduces the production of fluorine-containing wastewater and is more green and environmental friendly. By changing the reaction time, reaction temperature, raw material ratio, catalyst dosage and orthogonal experiment, the optimal process conditions of alkylation reaction and the influence of sulfonation degree of cation exchange resin on the product are explored, so that the synthesized resin can meet the requirements of electronic resin. At the same time, the structure of DPR resin was explored, and the contents of components with different degrees of polymerization in DPR resin, as well as the softening point and yield of DPR resin were determined. The experiment shows that when the new strong acidic cation exchange resin is used as the catalyst, the reaction conditions are 3 h, 120 ℃, the ratio of raw materials is 4∶1, and the amount of catalyst is 20%, the content of component with polymerization degree of 0 can reach 92.36%.

Key words: dicyclopentadiene, phenol, strong acidic cation exchange resin, dicyclopentadiene phenol resin, orthogonal experiment

CLC Number:

TB332

CAI Shiqi, WANG Songsong, SHI Jian, CHEN Li, LI Weimin, XIONG Yi. Study on green synthesis of dicyclopentadiene phenol resin for electronics[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(9): 73-79.

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