Synthesis and swelling behavior of superabsorbent composite hydrogels in present of nanoclay (Na-montmorillonite)
Publish place: 07th International Congress on Chemical Engineering
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
View: 628
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICHEC07_560
تاریخ نمایه سازی: 25 فروردین 1394
Abstract:
Superabsorbent polymers are three dimensional hydrophilic networks that can absorb and preserve large amount of water and physiologic solutions. In addition, a good superabsorbent must have enough strength also. In this research, composite superabsorbent hydrogels based on gelatin were prepared by grafting acrylamide & acrylic acid as monomers in the presence of methylene bisacrylamid(MBA) as crosslinking agent and amunium persulfate(APS) as an initiator, also nanoclay(Na-montmorillonite) substances were used Under the optimized conditions the maximum capacity of swelling in de-ionized water was found to be 380 g/g. Most hydrogels are sensitive to acidic and basic pHs, but these composites don't show remarkable change in wide range of pH, the swelling and deswelling rate of them were also determined in H20 and salt solution.Chemical structure of the hydrogel was characterized by means of (FTIR) spectroscopy, and morphology of the sample was examined by (SEM).
Keywords:
Authors
g Bagherimarandi
Department of Chemistry, Karaj Branch, Islamic Azad University, Karaj, Iran
g beheshtirouzbahani
Department of Chemistry, Karaj Branch, Islamic Azad University, Karaj, Iran
l mahmoodpoorsharabian
Department of Chemistry, Karaj Branch, Islamic Azad University, Karaj, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :