以玉米淀粉(NCS)为原料,乙酸乙烯酯(VAc)为酰化剂,K2CO3为催化剂,用微波辅助法制备乙酰化玉米淀粉(ACS),用红外光谱(FT-IR)、扫描电镜(SEM)和X-射线衍射(XRD)等手段对其表征,研究了ACS的理化特性,粘附性能和生物降解性.结果表明,ACS的理化性能比NCS有较大的改善:其水合能力增强,溶胀性与糊透明度提高;特性黏度和表观粘度下降,流变性能有所改善;凝沉作用减弱,抗老化性增强.ACS对涤棉纤维的粘附性提高,克服了原淀粉对疏水性合成纤维粘附力不足的缺陷.ACS的BOD5/CODCr比值远高于PVA-205.
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