Third , the mechanical properties were conducted by tensile test , and analyzed the relationship between the length , content , coupling agent levels and the tensile strength , tensile modulus of composites films . the result showed that the optimum formulation was the contents of long milled glass fiber 20 . 0wt % and coupling agent kh - 550 1 . 0wt % 最后,利用动态力学分析( dma )和差示扫描量热仪( dsc )对所制备的应变片基底材料进行了热学性能测试,得到了材料的玻璃化转变温度tg 、蠕变和应变回复率。
Mapping rheogram and analyzing thixotropy of fresh cement paste with different superplasticizers by measuring the rheologic parameters such as shearing stress 、 yield stress and plastic viscosity . using multi - channel isothermal calorimeter together with non - contacting electrical resistivity device , traditional hydration heat testingl and electrical resistivity testing were connected . using temperature - sensitive of traditional hydration heat model and structure - sensitive of structure formation model , instantaneous formation condition of paste structure was described exactly `采用多通道等温量热仪以及无电极电阻率测定仪,将传统的水化热测试与电阻率测试结合起来,运用水化热的热敏感性与结构形成的结构敏感性,更加真实地描述了水泥浆体初始结构的瞬时形成状态;系统全面地研究了高效减水剂对水泥水化过程的调控作用;运用微观测试方法,深入探讨了高效减水剂对水泥水化过程的影响。
