关键词: 乳液聚合, 正交实验, 氨值, 黏度, 固含量, 稳定性

Abstract: In this paper，using Octamethylcyclotetrasiloxane(D4) and Glycidoxypropyltrimethoxysilane (KH-560) as raw material，KOH as catalyst，epoxy modified silicone oil was synthesized by emulsion polymerization，then polyether amine D-400 was introduced to make amino polyether modified silicone oil by the reaction of epoxy groups and amino，and the product structure was characterized by IR spectrum. The orthogonal experiments were conducted to investigate how different reaction conditions affect the ammonia value，viscosity and solid content of the product. The results showed that the optimum process parameters are as follows：the molar ratio of D4 and KH-560 is 4∶1，the quantity of catalyst is equal to 0.2% of feedstocks，emulsifier dosage is 30%，the complex formulation ratio of AEO-3 to AEO-9 is 1∶1，the reaction temperature is 90 ℃，and the reaction time is 4h. The results of the characterization measurement indicated that the stability of products is good，amino value is 0.89 mmol/g，viscosity is 73 mPa?s，and solid content is 30%.

Key words: emulsion polymerization, orthogonal experiments, ammonia value, viscosity, solid content, stability