Used rubber powder was reinforced by corn stalk cellulose to prepare corn stalk cellulose/used rubber powder composites, and the coupling agents 3-mercaptopropyl trimethoxysilane (KH590), r-aminopropyltriethoxysilane (KH550), isopropyl dioleic (dioctylphosphate) titanate (HY101) and bis-(γ-triethoxysilylpropyl)-tetrasulfide (Si69) were used to modify the interphase between used rubber powder and corn stalk cellulose. The effects of corn stalk cellulose and coupling agent on the mechanical properties, thermal properties, interfacial morphology and structure of the composites were investigated, respectively. Results showed that the addition of corn stalk cellulose could effectively increase mechanical properties of the composites. Compared with untreated composites, the interfacial bonding between corn stalk cellulose and used rubber powder was significantly improved by the coupling modification treatment; while, mechanical properties, thermal properties, and compatibility of modified composites were further improved. On the whole, Si69 showed the best coupling modification effect, followed by KH590, then KH550 and HY101 in the case of coupling agent content, of which was all 6% of corn stalk cellulose content.

使用的橡胶粉是通过玉米秸秆的纤维素增强以制备玉米秸秆的纤维素/用过的橡胶粉末复合物，和偶联剂3-巯基丙基三甲氧基硅烷（KH590），ř-氨基丙基三乙氧基硅烷（KH550），异丙基二油酸（磷酸二辛酯）钛酸酯（HY101）和双-（γ-三乙氧基甲硅烷基丙基）-四硫化物（Si69）用于修饰废橡胶粉和玉米秸秆纤维素之间的相变。研究了玉米秸秆纤维素和偶联剂对复合材料力学性能，热性能，界面形态和结构的影响。结果表明，玉米秸秆纤维素的添加可以有效地提高复合材料的机械性能。与未处理的复合材料相比，偶联改性处理显着改善了玉米秸秆纤维素和废旧橡胶粉之间的界面结合。同时，改性复合材料的机械性能，热性能和相容性得到了进一步提高。总体上，