pH敏感型纳米二氧化硅乳化的ODSA施胶剂乳液及其应用  

Properties and Application of the Pickering-type ODSA Emulsion Stabilized by pH-sensitive Nano-SiO_2 Particles

作　　者：高大磊 林兆云[1] 李友明[1] GAO Da-lei LIN Zhao-yun LI You-ruing(State Key Laboratory and Paper Engineering, South China University of Technology, Guangzhou , Guangdong Province, 510640)

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《中国造纸学报》2016年第4期12-17,共6页Transactions of China Pulp and Paper

基　　金：国家自然科学基金(21476091)

摘　　要：采用pH敏感型纳米二氧化硅(SiO_2)颗粒作为乳化剂,制备了Pickering型十八烯基琥珀酸酐(ODSA)施胶剂乳液,研究了pH值、纳米SiO_2颗粒用量对ODSA乳液稳定性、形态、动力学稳定性和施胶稳定性的影响。结果表明,pH敏感型纳米SiO_2可以用于制备均一稳定的Pickering型ODSA乳液;随水相pH值的增大,ODSA乳液稳定性逐渐提高;此外,ODSA乳液作为一种剪切稀释型流体,还具有修复功能。pH-sensitive nano-SiO2 particles were used as stabilizer to prepare Pickering-type ODSA emulsion. The effects of pH value, parti- cles dosage on stability, morphology, dynamic stability and sizing effect of the emulsion were investigated. The results showed that pH-sensi- tive nano-SiO2 particles could be used to prepare stable and homogenous ODSA emulsion, and the stability of the emulsion increased as the pH value of aqueous phase increasing. As a shear-thinning emulsion, it had the self-repairing ability.

关 键 词：pH敏感型 纳米二氧化硅乳化 Pickering乳液 ODSA施胶剂乳液 

分 类 号：TS753.9[轻工技术与工程—制浆造纸工程]