摘要
以壳聚糖(CS)与海藻酸钠(SA)为原料,以0.4%(体积分数,下同)的甘油为增塑剂,以1.25%的戊二醛为交联剂,制得CS/SA复合膜,研究了CS与SA不同配合比和交联时间对复合膜性能的影响。等浓度的CS膜液与SA膜液的体积配合比为9∶1,交联时间为30min时,制得的CS/SA复合膜性能最佳,膜厚度较薄为31.8μm、溶胀度较好为235%、水溶性较弱为12%、水蒸汽透过系数较低为0.72×10^(-10)g/Pa·s·m。
A chitosan/sodium alginate composite film was made from chitosan and sodium alginate with 0.4vol% glycerol as plasticizer,cross-linked by 1.25vol% glutaraldehyde.The effects of different composite ratio and cross-linking time on the property of film were investigated.A optimal condition for the synthesis of film was determined：the volume mix ratio of chitosan and alginate was 9∶1 at the same concentration,the cross-linking time was 30 min.Under these conditions,the prepared film had the best performance,thinner thickness 31.8μm,better swelling ratio 235%,weaker water solubility 12% and lower water vapor permeability 0.72×10^（-10）g/Pa·s·m.
出处
《化工新型材料》
CAS
CSCD
北大核心
2017年第8期50-52,共3页
New Chemical Materials
基金
国家大学生创新创业训练计划项目(201510613060)
关键词
壳聚糖
海藻酸钠
戊二醛
交联作用
复合膜
chitosan
sodium alginate
glutaraldehyde
cross-linking
composite film
