The crosslinking system was : [ mbaa ] = 0 . 03 , 0 . 06 , 0 . 09mol / l , [ k2s2o8 ] = 0 . 0075 mol / l , t = 60 c , t = 40 ~ 60min . the existence of pamps gel layer on the surface of composite membrane was confirmed by ftir and sem 通过傅立叶红外光谱( ftir )分析和扫描电子显微镜( sem )的观察,证实了pvdf基膜表面pamps凝胶层的存在。
The overall properties of the composite were the best when the content of - nucleating agent was 0 . 5 % and the content of aid crosslinking agent was 3 % , the property of the composite came close to that of common engineering plastics 当成核剂用量为0 . 5 % 、助交联剂为3 %时,复合材料的综合性能达到最好,接近普通工程塑料的各项力学性能。
The analysis of ir spectrum and melt flow index showed that the composite had a micro - crosslinking structure , and the analysis of dsc discovered there was - spherulite in the aggregate structure of the composite of pp 红外光谱分析和熔体质量流动速率的测定表明,复合材料体系产生了微交联; dsc分析发现, pp材料的聚集态结构中含有球晶。
With increasing the content of ydh151 , the grafting degree increased and the grafting efficiency decreased . however , the content of dcp cannot be added too much so as to avoid the crosslinking reaction between ydh151 and hdpe 但是由于ydh151与hdpe也会发生交联,所以dcp的量不能过多, ydh151的量也在低于10 %为宜, ydh151含量太多时接枝效率大幅度一卜降。
Using the orthogonal experimental technique , we studied modified pva by formaldehyde , urea and tdi , and analyzed the influence of synthesis condition to its solid content , viscosity , dissolving rate and crosslinking degree 摘要采用正交实验方法,研究了甲醛、尿素和甲苯二异氰酸酯对聚乙烯醇的疏水改性,并分析了合成条件对其固含量、黏度、溶出率和交联度的影响。
Morphology investigations indicated that cs rod prepared by in - situ precipitation was bi - axis tropism . 3 . mechanical strength of cs rod was tested , and the effects of raw material , water content of cs rod and crosslinking modification with glutaraldehyde were discussed 对壳聚糖棒材的力学强度进行了测试,并分别讨论了原料、含水量、戊二醛交联改性对棒材力学性能的影响。
New silicone flame retardant potting compound was prepared by blending of ltv silicone rubber as base gum with diluent , crystalline quartz filler , chain extension agent , crosslinking agent , inhibitor , carbon black and platinum catalyst 以中温硫化硅橡胶(以下简称ltv硅橡胶)为基胶,混入稀释剂、石英粉、链增长剂、交联剂、阻聚剂、炭黑及铂催化剂等组分,制得新型有机硅阻燃灌封料。