摘要
以1,1,1,3,5,5,5-七甲基三硅氧烷（MDHM）和二乙烯基-1,4-丁二醇醚为原料,合成了聚醚改性的三硅氧烷表面活性剂。采用红外光谱（FT-IR）法和表面张力仪对其结构和性能进行了表征,并对其水解稳定性和乳化性能进行了测定。研究结果表明：产物的CMC（临界胶束浓度）为0.026 g/L、γCMC（最低表面张力）为18.3 m N/m和HLB（亲水亲油平衡）值为13.37,说明产物具有渗透、润湿之双重特性,并能显著降低水溶液的表面张力;当产物的p H为5-8时,其具有良好的水解稳定性;该产物具有优良的亲油性和亲水性,并且其乳化性能优异。
The polyether modified trisiloxane surfactant was synthesized when the 1,1,1,3,5,5,5-hepta-methyl trisiloxane （MDHM） and divinyl- 1,4- butanediol ether were used as raw materials. Its structure and properties were characterized by infrared spectroscopy （FT-IR） method and surface tensiometer, and the hydrolysis stability and emulsifying property were tested. The research results showed that the product had a dual characteristic of penetration and moistening, and could obviously reduce the surface tension of aqueous solution because its CMC （critical micelle concentration） value was 0.026 g/L, γCMC （minimum surface tension） was 18.3 mN/m, and HLB （hydrophilic-lipophilic equilibrium） value was 13.37. The product had the good hydrolytic stability when its pH was 5-8. The product had the good lipophilicity and hydrophilia, and its emulsifying property was excellent.
出处
《中国胶粘剂》
CAS
北大核心
2015年第5期24-27,共4页
China Adhesives
基金
2013年江西省科技厅科技支撑基金项目资助(20132BBE50013)
关键词
聚醚改性三硅氧烷
表面活性剂
临界胶束浓度
亲水亲油平衡值
水解稳定性
polyether modified trisiloxane
surfactant
critical micelle concentration （CMC）
hydrophiliclipophilic equilibrium（ HLB ） value
hydrolytic stability
