The hydrophobic graphite flakes could be well dispersed by both anionic and nonionic surfactants . the stability of the graphite aqueous suspensions was improved with pva or pvp due to the macromolecular entropic elasticity and osmotic pressure 3 、 cmc在ph为9时分散石墨的效果最好,当其含量达到20 %时,其吸光度是pva 、 pvp的吸光度的两倍多。
The technological developments of four types surfactants , anionic , nonionic , cationic and amphoteric surfactants , and two types raw materials are reviewed , and the development trend of surfactant industry is discussed 摘要综述了阴离子、非离子、阳离子、两性离子类表面活性剂及其两种主要原料(直链烷基苯磺酸盐、脂肪醇)的技术进展,概述了表面活性剂的发展方向。
Genome dna of all blood samples were extracted by using erythrocyte lysis solution and pcr buffer / nonionic detergent / proteinase k . a 109bp fragment was amplified from the human genome dna . 2 . in 166 han samples , 19 ( 11 . 45 % ) heterozygous genotypes of codon 54 mutant allele were found by pcr - sscp 用红细胞裂解液和pcr缓冲液非离于去污剂蛋白酶k两种自配试剂成功地提取了所收标本的人白细胞基因组dna ,并以此为模板成功扩增出预期的109hpmbl目的基因片段。
Results show that self - crosslinkable latex at room temperature with high elasticity can be prepared when amount of butyl acrylate is 60 % , and amount of methyl methacrylate is 40 % , and mass ratio of nonionic emulsifier to anionic emulsifer is 3 : 1 , and amount of initiator is 0 . 6 % , and amount of self - crosslinkable monomer and protective colloid is 2 % and 0 . 4 % respectively 研究结果表明:当丙烯酸丁酯的质量为60 % ,甲基丙烯酸甲酯的质量为40 % ,非离子乳化剂和阴离子乳化剂的质量配比为3 : 1 ,引发剂的质量为0 . 6 % ,自交联单体的质量为2 % ,保护胶体的质量为0 . 4 %时,可以制备出高弹性自交联乳液。
The results indicated that the ionic hydrogels showed the better ability of inhibiting attachment than that of nonionic hydrogels , and that poly ( acryloylaminopropyl trimethyl ammonium chloride ) hydrogels and poly ( acrylic acid ) hydrogels were fit to be used as inhibiting attachment materials because the germination ratio of attached spore on the surface of these hydrogels was 0 结果表明,离子型凝胶比非离子型凝胶具有更好的防附着能力,其中聚氯化三甲基3 -丙烯酰胺丙基胺凝胶和聚丙烯酸凝胶表面海带孢子的萌发率均为0 ,适合作为防附着材料。