摘要
累托石是我国湖北省盛产的铝硅酸盐矿物,其与蒙脱土极为相似,但又具有它独特的结构特点,近年来广泛用于聚合物/层状硅酸盐纳米复合材料的制备.本文介绍了累托石的结构特性、表面修饰和累托石/聚合物纳米复合材料的结构及制备方法,总结了累托石/壳聚糖基纳米复合材料及其作为抗菌剂、吸附剂、药物控释材料和基因载体等功能化应用方面的最新研究成果,并提出了累托石/聚合物纳米复合材料未来的研究方向.
Rectorite is a kind of layered silicate originated from Hubei province;it has unique structure characteristic albeit with the structure and characteristic much like those of montmorillonite.Rectorite is a regularly interstratified clay mineral with alternate pairs of dioctahedral mica-like layer（nonexpansible） and dioctahedral montmorillonite-like layer（expansible） in 1：1 ratio.In recent years,rectorite has been widely used in the preparation of polymer/layered silicate nanocomposite.This paper introduced the structure and surface modification of rectorite and the structure and preparation method of rectorite/polymer nanocomposite.In particular,the new results of chitosanbased rectorite nanocomposite were summarized.The researchers prepared a series of chitosan-based rectorite nanocomposites via simple solution intercalation,although the rectorite content in these studies was higher than that of other reports,rectorite still dispersed well in the chitosan matrix,there were hydrogen-bonding and electrostatic interactions between rectorite and chitosan.Moreover,the researchers studied antimicrobial activity and mechanism,adsorption capacity,drug-controlled release behavior,gene transfection capacity and structure-property relationship of chitosan-based rectorite nanocomposites.In addition,the films,microsphere and nanoparticles of chitosan-based rectorite nanocomposites were prepared and their properties such as mechanical property,barrier ability,antiultraviolet capacity,thermal stability were studied.At last,the future research of rectorite/polymer nanocomposite was expected.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2012年第2期113-121,共9页
Journal of Inorganic Materials
基金
国家自然科学基金(30972323
30710103906)
华南理工大学中央高校基本科研(2009ZM0182)项目
制浆造纸工程国家重点实验室开放基金(200923)
国家重点基础研究发展计划(973计划)(2010CB732201)~~
