Resistance of Epoxypolymer with 2 - 5 wt% Nanosilica in Aggressive Acid Medium  

作　　者：Dmitro L. Starokadomsky Igor G. Telegeev 

机构地区：[1]O. O. Chuiko Institute of Surface Chemistry, Kyiv, Ukraine

出　　处：《Open Journal of Polymer Chemistry》2012年第3期117-123,共7页高分子化学期刊（英文）

摘　　要：The swelling dynamic and epoxy resin structure changes of nanosilica (NS) with different specific surface in concentrated nitric acid were studied. It is established that with increasing of specific surface area of unmodified NS swelling degree decreases and stability of the composite in the acid goes up. Resistance of NS to the HNO3 can be achieved by choosing the optimal concentration and modifications of NS’s surface. According to electron microscopy and X-ray diffraction, the structure of composite can be changed due to appearance of ordered structural zones.The swelling dynamic and epoxy resin structure changes of nanosilica (NS) with different specific surface in concentrated nitric acid were studied. It is established that with increasing of specific surface area of unmodified NS swelling degree decreases and stability of the composite in the acid goes up. Resistance of NS to the HNO3 can be achieved by choosing the optimal concentration and modifications of NS’s surface. According to electron microscopy and X-ray diffraction, the structure of composite can be changed due to appearance of ordered structural zones.

关 键 词：NANOSILICA (NS) Epoxypolymer (EP) NITRIC Acid (c.HNO3) SWELLING Degree (q) Life-Time (L) DESTRUCTION TEM-Images 

分 类 号：O6[理学—化学]