【摘要】 研究了魔芋葡甘聚糖接枝丙烯酸共聚物(KAC)在几种环境湿度下的吸湿率和平均吸湿速率,分析了不同粒径KAC的扩散吸湿性能,并与变色硅胶、蒙脱石通用吸湿剂的吸湿性能进行了比较.实验结果表明:KAC具有显著的扩散吸湿特点,其吸湿率和平均吸湿速率强烈地依赖环境湿度量和吸湿接触面积,明显的正相关性表现出KAC在高湿环境中(RH=90±1%)具有优越的高效吸湿功能,室温下4 d的吸湿率高达100%,9 d后大于120%.与通用吸湿剂相比较,KAC在RH=(90±1)%的环境中,表现出长效吸湿能力.更多还原

【Abstract】 The absorbing moisture and moisture absorption rate of the konjac glucomannan acrylic acid copolymer(KAC) in different humidity and KAC of different particle size are investigated in this paper and the moisture absorbability of KAC and common desiccant(silica gel and mentor-rock) are compared in this paper.The result indicates that KAC has significant diffusion moisture absorption characteristics,which absorbing moisture and moisture absorption rate of KAC strongly depend on ambient moisture and active area.The obvious positive correlation shows the superior moisture absorption function of KAC at RH=90 1% and T=25 1℃,and its absorbng moisture reached 100% and 120% for 4d and 9d respectively.KAC is superior to common desiccant in lasting moisture absorption at RH=95±1%.更多还原