Highly stretchable nanoalginate based polyurethane elastomers

详细信息    查看全文

• 作者：Hamed Daemi ; Mehdi Barikani ; ^{M.Barikani@ippi.ac.ir} ; Mohammad Barmar
• 关键词：Cationic polyurethane ; Sodium alginate ; Elastomer ; Nanoparticles ; Compatibility
• 刊名：Carbohydrate Polymers
• 出版年：2013
• 出版时间：20 June, 2013
• 年：2013
• 卷：95
• 期：2
• 页码：630-636
• 全文大小：1840 K

文摘

Highly stretchable elastomeric samples based on cationic polyurethane dispersions-sodium alginate nanoparticles (CPUD/SA) were prepared by the solution blending of sodium alginate and aqueous polyurethane dispersions. CPUDs were synthesized by step growth polymerization technique using N-methyldiethanolamine (MDEA) as a source of cationic emulsifier. The chemical structure and thermal-mechanical properties of these systems were characterized using FTIR and DMTA, respectively. The presence of nanoalginate particles including nanobead and nanorod particles were proved by SEM and EDX. It was observed that thermal properties of composites increased with increasing SA content. All prepared samples were known as thermoplastic-elastomers with high percentages of elongation. Excellent compatibility of prepared nanocomposites was proved by the DMTA data.