Firstly,Eucommia ulmoides gum(EUG)was epoxidized to obtain epoxidized EUG(EEUG).Then,EEUG grafted silicon dioxide(SiO2)composite(EEUG-g-SiC2)was prepared by wet graf-ting SiO2 onto EEUG.The structure and properties of EEUG-g-SiC2 composite were studied.The results showed that compared with EUG/SiO2 and EEUG/SiO2 mechanical blends,the dispersion of nano SiO2 in EEUG-g-SiO2 vulcanizate was significantly improved and the mechanical properties were greatly improved.Compared with EUG/SiO2 vulcanizates,the tear strength of EEUG-g-SiO2 vulcanizate in-creased by 30.9％,fatigue resistance increased by 575％,and abrasion decreased by 94％.Compared with EEUG/SiO2 vulcanizate,the tear strength of EEUG-g-SiO2 vulcanizate increased by 10.5％,fatigue resistance increased by 68.6％,abrasion decreased by 72％,and the compression heat build-up decreased significantly.
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