摘要
豆腐渣经脱脂后,用环氧氯丙烷进行醚化改性。以改性豆腐渣、聚乙烯醇(PVA)主要原料,以CaCO3为添加剂,制备改性豆腐渣/PVA复合材料。研究醚化反应条件、组分含量对复合材料吸水率和降解性能的影响。复合材料的吸水率随醚化程度的提高而降低。CaCO3对吸水性有较大影响。复合材料在土壤环境中能够降解,降解60d后失重率达到70%。
In the present work, bean curd residue was etherified by epichlorohy. Degradable composite materials was prepared from modified bean curd residue, poly vinyl alcohol （PVA） additives （CaCO3）. Factors that affected water absorption and degradability were investigated. Water-absorbing capacity of the composite materials decreased with the increase of the degree of etherfication. With CaCO3 added into the composite, the water absorption capacity decreased greatly. The composite materials degraded in soil, with a weight loss rate of over 70% after 60 days.
出处
《环境保护科学》
CAS
2007年第1期30-32,共3页
Environmental Protection Science
基金
国家自然科学基金项目(30270761和30571077)
关键词
豆腐渣
改性
可降解复合材料
废弃物
Bean Curd Modification Degradable Composed Materials
