摘要
以丙烯酸为单体,醋酸乙酯与环己烷为混合溶剂,通过考察交联剂、分散剂的种类和添加量,用沉淀聚合法合成了卡波树脂(Carbomer)。用GPC、IR和化学分析法对产物的结构与性能进行了研究,产品的质量分数为0.5%的屈服值、未中和前及中和后的黏度、润湿时间和透光率分别为1300mN/m2、<50mPa·s、130000mPa·s、10min、97.7%,而国外同类产品分别为1080mN/m2、700mPa·s、90000mPa·s、41min、94.5%,表明了自制的卡波树脂性能较好。进一步考察了自制产品和国外同类产品的质量分数及pH对其黏度、屈服值的影响。
Carbomer was synthesized by precipitation polymerization with acrylic acid as monomer, ethyl acetate and cyclohexane as co-solvent. The different kinds of crosslinker, steric stabilizer, and their amounts were investigated. Therefore, properties of the product were characterized by using GPC, IR and conventional analysis. The results showed that： the 0.5w/% product yield value, un-neutralized viscosity, neutralized viscosity, dispersion time and clarity were 1 300 mN/m^-2, 〈50 mPa·s, 130 000 mPa·s, 10 min, 97.7% respectively; while the imported carbomer were 1 080 mN ·m^-2, 700 mPa·s, 90 000 mPa·s, 41min, 94.5% respectively. Further, influences of the content and pH of carbomer product on the viscosity and yield value were discussed compared with the imported carbomer product.
出处
《日用化学品科学》
CAS
2007年第10期18-22,共5页
Detergent & Cosmetics
关键词
分散剂
卡波树脂
沉淀聚合法
交联剂
dispersion
carbomer
precipitation polymerization
crosslinker
