漆酚甲醛缩聚物乳液的研制

用漆酚基乳化剂（UE）将漆酚甲醛缩聚物（UFP）乳化为水包油（O／W）型的稳定水基分散体系．研究了乳化温度、UE用量及UE结构对相反转乳化过程的的影响，并用乳液体系电导率变化和黏度变化表征了相反转乳化过程．实验结果表明，以漆酚基乳化剂UEl0B为乳化剂，利用相反转技术可得到稳定的漆酚甲醛缩聚物水性乳液．当UE10B与UFP的质量比r≥10％，乳化温度为40℃时，可将漆酚甲醛缩聚物乳化为稳定的水基化分散体系．所制得漆酚甲醛缩聚物乳液粒子为多孔结构的5～20μm微球，孔的尺寸小于1μm．

The Waterborne Dispersions of Rushiol-formaldehyde Condensation Polymer Prepared via Urushiol-based Emulsifier

With UE10B chosen as an emulsifier, the waterborne dispersions of rushiol-formaldehyde condensation polymer （UFP）with good stability was achieved by phase-inversion emulsification technique. The effects of emulsifying temperature,UE10B content and the structure of UE on the phase inversion during emulsification process were investigated. The emulsification process and phase inversion were characterized by using the variation of conductivity and viscosity for the ternary system of UFP /emulsifier/water. The results show that the higher emulsifier content and the lower emulsifying temperature are beneficial to waterborne dispersion of UFP. The phase begins to invert when R is 1.05 and the system has changed from W/O to O/W when R is 1.4. The waterborne particles of UFP were of multiporous sphere of 5 -20 μm diameter and with its orifice diameter of less than 1 μm.