煤气化渣尾渣-炭黑基橡胶复合材料的制备及力学性能研究OA

The coal gasification slag tailing is a solid waste produced by the coal gasification slag after washing.The utilization rate is low,and it is mainly landfilled.In this paper,the coal gasification slag tailings were taken as the research object,and the coal gasification slag tailings powder(WCGSP)was obtained by grinding process and used to replace part of N660 carbon black(CB)to prepare the coal gasification slag tailing powder-carbon black/styrene buta-diene rubber(WCGSP-CB/SBR)composites.The vulcanization properties and mechanical properties of WCGSP-CB/SBR composites were systematically studied.The results show that the substitution of WCGSP for CB improves the fluidity of WCGSP-CB/SBR,and with the increase of WCGSP content,the fluidity of WCGSP-CB/SBR is enhanced,and the processing performance of rubber composites is improved.The substitution of WCGSP for CB increased the vulcanization rate of WCGSP-CB/SBR,reduced the vulcanization time and improved the mechanical properties.When 10%CB was replaced by WCGSP,the curing rate index of rubber composites was the largest,the tensile strength was almost the same as that of CB/SBR,and the tear strength was 6.83%higher than that of CB/SBR.In this study,WCGSP was used to replace CB for rubber filler,which solved the problem of high cost and pollution of CB,and pro-vided theoretical basis and technical support for the high value utilization of WCGSP.