ESTIMATION METHOD OF THE SWELLING DEGREE OF NANOCOMPOSITES CLAY-POLYMER
Abstract
The method of shortcut estimation of the degree of free swelling of dry intercalated nanocomposites claypolymer based on bentonite and acrylamide is considered in the paper. In concordance with a proposed method several samples are separated from total mass of polymerized nanocomposite and their weight or volume is measured. Some of them are dried and the other part is placed in water for determination of swelling. After completion of drying and swelling, the procedure of masses (volumes) evaluation is repeated and the results are calculated by the formula given in the paper.
References
Gao F. Clay/polymer composites: the story // Materials today. – 2004. –7, No 11. – P. 50–55.
Zhang J., Wanga A. Study on superabsorbent composites. IX: Synthesis, characterization and swelling behaviors of polyacrylamide/clay composites based on various clays // Reactive & Functional Polymers. – 2007. – 67, No 8. – P. 737–745.
Евсикова О.В., Стародубцев С.Г., Хохлов А.П. Синтез, набухание и адсорбционные свойства композитов на основе полиакриламидного геля и бентонита натрия // Высокомолекулярные соединения. Серия А. – 2002. – 44, №5. – С.802–808.
