Reinforcement of SBR/waste rubber powder vulcanizate with in situ generated zinc dimethacrylate

2016 Global Conference on Polymer and Composite Materials

材料科学;化学

Wang, X.P.^1 ; Cheng, B.K.^1 ; Zhang, X.^1 ; Jia, D.M.^1

School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong

510641, China^1

关键词: In-situ polymerization;    Interfacial interaction;    Mechanical performance;    Optimum value;    Processing ability;    Rubber powders;    Styrene butadiene rubber;    Zinc dimethacrylate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/137/1/012048/pdf
DOI  :  10.1088/1757-899X/137/1/012048

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Methyl acrylic acid/zinc oxide (MAA/ZnO) was introduced to modify styrene- butadiene rubber/waste rubber powder (SBR/WRP) composites by blending. The enhanced mechanical properties and processing ability were presumably originated from improved compatibility and interfacial interaction between WRP and the SBR matrix by the in situ polymerization of zinc dimethacrylate (ZDMA). A refined interface of the modified SBR/WRP composite was observed by scanning electron microscopy. The formation of ZDMA significantly increased the ionic bond content in the vulcanizate, resulting in exceptional mechanical performance. The comprehensive mechanical properties including tensile strength, tear strength and dynamic heat-building performance reached optimum values with 16 phr MAA.