再生纤维素/SiO_2互穿网络材料的制备和性能  

Novel Regenerated Cellulose/SiO_2 IPN Materials

作　　者：全凤玉[1] 夏延致[1] 纪全[1] 陈丽丽[1] 

机构地区：[1]青岛大学纤维新材料与现代纺织国家重点实验室培育基地,山东青岛266071

出　　处：《高分子材料科学与工程》2009年第4期137-139,143,共4页Polymer Materials Science & Engineering

基　　金：973前期研究专项(2006CB708603)

摘　　要：采用溶胶凝胶法以硅酸钠为无机前驱体,加入粘胶溶液中充分混合、制膜,经酸性凝固浴,膜中硅酸钠水解、聚合形成网状的聚硅酸,同时纤维素再生,从而形成有机大分子与无机大分子的互穿网络结构。通过红外(FT-IR)、透射电镜(TEM)、元素分析等测试表明,膜中的无机物含量随着硅酸钠的加入量、凝固浴温度的变化、凝固浴pH值变化而变化;随着无机物含量以及凝固浴温度的提高,纤维素与二氧化硅之间形成有机无机互穿网络结构;通过锥形量热计测试表明,无机物的加入使纤维素的燃烧性能有了大幅提高。Organic/inorganic interpenetrating network （IPN） materials were prepared by an in sol-gel method. Poly（silicic-acid） extracted from sodium silicate was used as the inorganic component and cellulose was used as an organic compound. The obtained membranes were characterized by fourier-transform infrared spectroscopy （FT-IR）,transmission electron micrograph （TEM） and element analysis. The results reveal that the inorganic content in the membranes varies with the amount of sodium silicate, temperature and pH of regeneration solution. TEM analysis shows a good miscibility with SiO2 and cellulose. The organic/inorganic IPN is formed between cellulose and inorganic phases with increasing of SiO2. The combustion characteristics of the IPN materials are better than cellulose.

关 键 词：再生纤维素 二氧化硅 互穿网络 

分 类 号：TQ316.6[化学工程—高聚物工业]