【摘要】 采用溶液共混法制备了聚乙烯醇-魔芋葡甘聚糖/凹凸棒石复合材料。探讨了聚乙烯醇用量(相对于魔芋葡甘聚糖质量分数,下同)、交联剂戊二醛用量和凹凸棒石用量对聚乙烯醇-魔芋葡甘聚糖/凹凸棒石复合材料力学性能的影响。力学性能测试结果表明,当聚乙烯醇用量为80%、交联剂戊二醛用量为3%、凹凸棒石用量为1%时,聚乙烯醇-魔芋葡甘聚糖/凹凸棒石复合材料的力学性能最好。FT-IR和SEM测试结果表明,复合材料中聚乙烯醇、魔芋葡甘聚糖和凹凸棒石之间存在强烈的相互作用和良好的相容性。更多还原

【Abstract】 The polyvinyl alcohol(PVA)-konjac glucmannan(KGM) composites were prepared by blending method. The attapulgite(AT) were dispersed into polyvinyl alcohol-konjac glucmannan matrix to get polyvinyl alcohol-konjac glucmannan/attapulgite composites through blending method with different compositions. Effects of amount of polyvinyl alcohol(compare to the mass of KGM), glutaraldehyde and attapulgite on the properties of polyvinyl alcohol-konjac glucmannan/attapulgite composites were investigated.The mechanical properties show that when the dosage of polyvinyl alcohol, glutaraldehyde and attapulgite were 80%, 3% and 1%, respectively(compare to the mass of KGM), the mechanical properties of the polyvinyl alcohol-konjac glucmannan/attapulgite composites were the best. The composites were characterized by fourier transform infrared spectra(FTIR) and scanning electron microscopy(SEM). The results indicate that the mechanical properties of composites is improved due to the strong interaction and compatibility between konjac glucmannan, polyvinyl alcohol and attapulgite.更多还原