摘要
采用半连续乳液聚合法,将八硝苯基笼型倍半硅氧烷(ONPS)掺入(甲基)丙烯酸酯乳液中,对其进行改性。透射电镜照片、粒径分布分析、DSC、拉伸强度的测量结果表明:ONPS的加入量低于3%时,明显提高了丙烯酸酯树脂的Tg,同时乳液涂膜的拉伸强度大幅上升,而断裂伸长率略有下降。
The octa（nitrophenyl） silsesquioxane（ONPS） -modified acrylate emulsion is synthesized by a semi-continuous polymerization in this paper. Analysis by TEM and the particle size distribution show that the ONPS particles are homogeneously dispersed in the emulsion at a nanometer scale. Differential scanning calorimetry test shows that the addition of ONPS increases Tg of acrylate emulsion significantly, as well as the tensile strength of films, but decreases rupture elongation slightly.
出处
《涂料工业》
CAS
CSCD
2006年第4期5-7,20,共4页
Paint & Coatings Industry
基金
国家自然科学基金资助项目(50203002)
关键词
八硝苯基笼型倍半硅氧烷
丙烯酸酯乳液
分散
力学性能
热性能
octa （nitrophenyl） silsesquioxane
acrylate emulsion
dispersion
mechanical properties
thermal properties
