碳酸钙-再生纤维素复合材料的制备及表征  

Preparation and Characteristics of Calcium Carbonate/Regenerated Cellulose Composite Film

作　　者：孙智[1] 刘一山[1] 谢建军[2] SUN Zhi;LIU Yishan;XIE Jianjun(Sichuan Technology and Business College, Dujiangyan 611830, Sichuan, China;School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China)

机构地区：[1]四川工商职业技术学院,四川都江堰611830 [2]上海大学材料科学与工程学院,上海200444

出　　处：《实验室研究与探索》2018年第12期60-63,共4页Research and Exploration In Laboratory

基　　金：四川省教育厅2018年理科重点科研项目(18ZA0315);四川工商职业技术学院2017年科研课题(2017NC03)

摘　　要：以竹溶解浆为纤维素原料,氯化钙、碳酸钠为反应物,在1-乙基-3-甲基咪唑醋酸盐/二甲基亚砜(EmimAc/DMSO)的有机体系中溶解纤维素和氯化钙;将纤维素/(EmimAc/DMSO)溶液涂布在玻璃板上形成再生纤维素膜,然后将其放入碳酸钠的水溶液中进行凝浴,制备了碳酸钙-再生纤维素复合材料膜。FESEM、EDS、Raman和XRD测试结果表明:在含有氯化钙的再生纤维素膜中,氯化钙与碳酸钠发生原位沉淀反应,所产生的方解石型碳酸钙晶体负载到纤维素分子上,由此可以制备组织结构均匀的碳酸钙-再生纤维素复合材料。这种通过原位沉淀所制成的复合材料膜,其组织结构均匀,各种性能将得到进一步的提高。Using bamboo dissolving pulp as the cellulose material, calcium chloride and sodium carbonate as the precipitation reactant, cellulose and calcium chloride were dissolved in the solvent mixed of 1-ethyl-3-methyl imidazole acetate and dimethyl sulfoxide (EmimAc/DMSO), then the cellulose/calcium chloride EmimAc/DMSO solution was coated on a glass plate to form regenerated cellulose film, the wet film with glass plate was dipped in sodium carbonate aqueous solution, at last the calcium carbonate/regenerated cellulose composite film was prepared. The results of FESEM, EDS, Raman and XRD show that calcium chloride exists in regenerated cellulose film can react with calcium chloride in the aqueous to form calcite style calcium carbonate crystal, and the crystal particles are adhered in the film very uniformly, so this method could be used to prepare calcium carbonate-regenerated cellulose composite film. The film made by the method of in situ precipitation is very uniformly, so the characteristics and performance can be improved greatly.

关 键 词：碳酸钙 再生纤维素复合材料 原位沉淀 凝浴 

分 类 号：TQ352[化学工程]