以苯乙烯、丙烯酸丁酯为主单体,丙烯酸(AA)为功能单体,SDS/OP-10为复合乳化剂,过硫酸铵为引发剂,采用单体预乳化、半连续种子乳液聚合工艺,制备出性能优异的苯丙乳液。采用 FT-IR、DSC、GPC、Nano-ZS90等对聚合物乳液进行了表征,系统研究了单体配比、复合乳化剂、引发剂用量、聚合温度等因素对乳液成膜性、耐水性、稳定性等常规性能的影响。结果表明,乳胶粒粒径受复合乳化剂种类及用量的影响较大,同时也与引发剂用量有关；单体配比是乳液玻璃化温度(Tg )的关键影响因素。
A kind of styrene-acrylate emulsion with excellent performance was synthesized by styrene,butyl ac-rylate (as the main monomers)and acrylic acid (as the functional monomer)via mixed emulsifiers of SDS/OP-10 and ammonium persulfate served as the initiator.The pre-emulsification technology and semi-continuous seed emulsion polymerization process were introduced.The polymer emulsion was characterized by Fourier transform infrared (FT-IR)spectroscopy,differential scanning calorimetry (DSC),gel permeation chromatog-raphy (GPC)and nano-ZS90 etc.The effects of monomer ratio,composite emulsifier,polymerization tempera-ture and the dosage of initiator on the emulsion film-forming properties,water resistance,stability and other conventional performance were systematically studied.The results showed that,the latex particle size was greatly influenced by composite emulsifier types and amount,but also related to the dosage of initiator.Mono-mer ratio was a key factor of the glass transition temperature.
参考文献
| [1] | 陈泽森.水性建筑涂料生产技术[M].北京:中国纺织出版社,2010 |
| [2] | 闫绍峰,熊晓航,王容梅.苯乙烯-丙烯酸丁酯乳液性能的研究[J].辽宁工业大学学报,2009(06):414-416. |
| [3] | 闫福安.涂料树脂合成及应用[M].北京:化学工业出版社,2008 |
| [4] | Tolue, S;Moghbeli, MR;Ghafelebashi, SM .Preparation of ASA (acrylonitrile-styrene-acrylate) structural latexes via seeded emulsion polymerization[J].European Polymer Journal,2009(3):714-720. |
| [5] | 虞莹莹.涂料工业用检测方法与仪器大全[M].北京:化学工业出版社,2007 |
| [6] | Wang Ru;Wang Peiming .Function of styrene-acrylic es-ter copolymer latex in cement mortar[J].Materials and Structures,2010,43:443-451. |
| [7] | 赵晨阳,李效玉.高固含量乳液（St/BA/AA）的合成、乳胶粒径及其分布[J].高分子材料科学与工程,2005(02):118-120,124. |
| [8] | 张心亚,黄洪,沈慧芳,蓝仁华,陈焕钦.苯丙乳液的最低成膜温度及其影响因素分析[J].粘接,2005(06):37-39. |
| [9] | 彭二英,王平华,李凤妍,刘春华,杨莺.苯丙乳液最低成膜温度的影响因素分析[J].上海涂料,2008(01):1-4. |
| [10] | 王季昌.丙烯酸树脂玻璃化温度（Tg）的设计和选择[J].中国涂料,2008(10):52-56. |
| [11] | Machotova J;Snuparek J;Prokupek L;Rychly T;Vlasak P .Effect of functionalised core-shell microgels prepared by emulsion polymerisation on acrylic coatings properties[J].Progress in Organic Coatings: An International Review Journal,2008(2):175-181. |
| [12] | 张心亚,蓝仁华,陈焕钦.含功能性单体的苯/丙乳液的聚合稳定性[J].华南理工大学学报(自然科学版),2004(03):15-19. |
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