Polyurethane elastomers based on glycols ( PEA, PPG PTMG ) , diisocyanate ( TDI ) and chain extender ( E - 300 ) were prepared.以多元醇 ( PEA, PPG,PTMG ),PDI, E300为原料,制备了 PU 弹性体.A new process of Hydration of propylene oxide ...
赫索格感到一种深切而晕眩的渴望又开始了.Herzog felt a deep, dizzy eagerness to begin.那人感到后颈部受到令人晕眩的猛击.The man felt a stunning Blow upon the Back of his neck.他有一种晕眩的感觉.He had a sensation of dizziness....
Hence, ebonite is in fact one kind of thermosets.因此, 硬质橡胶实质上是一种热固性塑料.Some properties were also discussed and the multi - functional ebonite would be promising in future development.还简述了硬质橡胶性能,指出通过改性使其 高 功能化是这类硬质橡胶材料的发展方向...