摘要
选用市面上销量较大的3种高分子乳化剂,用种子乳液法制备聚四氟乙烯（PTFE）分散乳液。用扫描电镜观察了种子乳液的微观形貌,通过研究乳化剂的红外图谱确定其主要官能团,并分析了不同乳化剂体系下PTFE分散乳液乳胶粒的粒径及形貌变化。结果表明,乳化剂TO-1控制下的乳液粒径在240~270 nm,粒径分布均匀,且结构内不含苯环,属于环保型表面活性剂,是性能优良的高分子乳化剂。
This paper chose three kinds polymer emulsifier whose sale were the top three in the market to prepare polytetrafluoroethylene(PTFE)dispersion emulsion by seed emulsion method.The microstructure of seed emulsion was observed by scan electron microscope and the main functional groups of emulsifier was determined through infrared spectrum.Analyzed the relationship between emulsifier system and the latex particle size as well as the morphology.The results showed that the particle size of the emulsion which under the control of emulsifier TO-1 was within the range of 240~270 nm,the particle size distributed uniformed,and the structure without containing benzene ring.It is an environmentally friendly surfactant,and it is a polymer emulsifier with good performance.
出处
《化工生产与技术》
CAS
2016年第4期7-9,共3页
Chemical Production and Technology
关键词
乳化剂
种子乳液法
粒径
微观形貌
聚四氟乙烯
emulsifier
seed emulsion polymerization
particle size
microstructure
polytetrafluoroethylene
