In order to improve the high-temperature resistance and mechanical properties of barium phenolic resin,silane coupling agent KH-560 was used to chemically modify the resin in this study.Various performance characterizations were conducted on the resin before and after modification,with a focus on the thermal stability,mechanical properties,and adhesion of the modified resin.The research results showed that,(1)KH-560 was successfully and stably connected to the molecular chain of barium phenolic resin through chemical bonds.(2)The optimal addition amount of KH-560 was 15％.Compared with pure barium phenolic resin,the Tmax2 of modified barium phenolic resin increased by about 25 ℃,and the thermal performance was significantly improved.(3)KH-560 could effectively improve the mechanical properties of barium phenolic resin.The tensile strength of barium phenolic resin modified by 15％of KH-560 increased by about 32.5％,the tensile modulus increased by about 11.7％,and the adhesion increased by about 30.4％.
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