摘要
本文以十二-十四醇和烯丙基缩水甘油醚通过开环反应制得1-十二十四醇-2-烯丙氧基-3-羟基丙烷(RA),通过单因素正交试验得到最佳反应条件;后进行环氧乙烷加成得到1-烯丙氧基-3-十二-十四醇-2-羟丙聚氧乙烯醚(EO=10)(RAEO),即为非离子乳化剂;最后和氨基磺酸反应制得1-烯丙氧基-3-十二-十四醇-2-羟丙聚氧乙烯醚硫酸铵盐(EO=10)(RAEOSN),通过正交实验得到最佳的反应条件。对比RAEOSN和RAEO的性能得到:RAEOSN的临界胶束浓度为1×10^(-4)g/mL,此时的表面张力为29.95 mN/m, RAEOSN制备的乳液的粒径为135.2 nm, PDI为0.059,吸水率为0.053%,zeta电位的绝对值基本大于50 mV,性能优异。同时对比了RAEOSN和市场常用的A-102,结果表明:RAEOSN制备的涂料的耐水性、展色性等外墙应用性能均比A-102优越。
The reactive emulsifier has a positive effect on the film formation of the emulsion,and the reactive emulsifier on the market has a single effect and needs to be compounded.An excellent reactive emulsifier with controllable molecular weight and combining the advantages of anionic and nonionic were synthesized.In this paper,RA is prepared by ring-opening reaction of dodecyl-tetradecanol and allyl glycidyl ether,and the best reaction conditions are obtained by single factor orthogonal test;then RAEO is obtained by addition of ethylene oxide,which is non-ionic emulsification.Reagent;finally react with sulfamic acid to prepare RAEOSN,and get the best reaction conditions through orthogonal experiment.Comparing the performance of RAEOSN and RAEO,we get:the critical micelle concentration of RAEOSN is 1×10^(-4) g/mL,the surface tension at this time is 29.95 mN/m,the particle size of the emulsion prepared by RAEOSN is 135.2 nm,and the PDI is 0.059.The water absorption rate is 0.053%,the absolute value of the zeta potential is basically greater than 50 mV,and the performance is excellent.At the same time,the RAEOSN and the commonly used A-102 in the market are compared,and the results show that the water resistance and color development of the coatings prepared by RAEOSN are superior to A-102.
作者
王也
袁宜恩
季永新
WANG Ye;YUAN Yien;JI Yong-xin(School of Chemical Engineering,Nanjing Forestry University,Nanjing 210037,Jiangsu China;Shanghai Baolijia Chemical Co.,Ltd.,Shanghai 201405 China)
出处
《化学研究与应用》
CAS
CSCD
北大核心
2022年第8期1898-1905,共8页
Chemical Research and Application
基金
国家重点研发计划资助(2018YFD0600402)。
关键词
乳液聚合
反应型乳化剂
外墙涂料
展色性
耐水性
粒径
临界胶束浓度
emulsion polymerization
reactive emulsifier
exterior wall coatings
color development
water resistance
particle size
critical micelle concentration
