材料工程2016，Vol.44Issue(4)：14-19,6.DOI:10.11868/j.issn.1001-4381.2016.04.003
高分子中空微球的制备及其在聚硫密封剂中的应用
Preparation of Hollow Polymer Microsphere and Its Application in Polysulfide Sealant
摘要
Abstract
Core-shell structured polymer microsphere fabricated via seeded emulsion polymerization, taking methacrylic acid and methacrylate as nuclear monomer,styrene as shell monomer.Hollow pol-ymer microsphere was prepared using the method of stepwise alkali/acid treatment,nuclear layer that containing rich carboxylic acid was fully ionized and moved away from the microsphereviaswelling. The finial particle size of the hollow microsphere were controlled through adj usting the amount of emulsifier in the seed preparation stage,and two different size of hollow microsphere (551nm and 156nm)were gotten.The polysulfide sealant was prepared by blending the two kinds of microsphere with polysulfide rubber respectively and the property of the sealant was investigated.The structural characteristics,morphology,ingredients and mechanical properties were analyzed by transmission electron microscope (TEM),Fourier infrared spectrometer (FTIR),electronic tensile machine.The results show that hollow microspheres have a uniform distribution of particle size and high degree of hollowness.The addition of hollow polymer microsphere can reduce the density of the sealant,as well as improve mechanical properties.In comparison,hollow polymer microsphere with big size has a bet-ter filling effect.关键词
高分子中空微球/碱酸处理/聚硫密封剂/密度/拉伸强度Key words
hollow polymer microsphere/alkali/acid treatment/polysulfide sealant/density/tensile strength分类
化学化工引用本文复制引用
王忠兵,洪强,罗小杰,章谏正,宋英红,吴松华,杨保俊..高分子中空微球的制备及其在聚硫密封剂中的应用[J].材料工程,2016,44(4):14-19,6.基金项目
中航工业产学研资助项目(cxy2011HFGD21) （cxy2011HFGD21）
