醋酸纤维素水性高分子乳液亲水剂种类的选择  

Selection of Hydrophilic Agent for Cellulose Acetate Water-based Polymer Emulsion

作　　者：张婧 鲍艳 王莹[1] ZHANG Jing;BAO Yan;WANG Ying(Xianyang Vocational and Technical College,Xianyang Shaanxi 712000,China;College of Bioresources and Chemical and Materials Engineering,Shaanxi University of Science and Technology,Xi'an Shaanxi 710021,China)

机构地区：[1]咸阳职业技术学院,陕西咸阳712000 [2]陕西科技大学轻工科学与工程学院,陕西西安710021

出　　处：《当代化工》2023年第10期2309-2316,共8页Contemporary Chemical Industry

基　　金：陕西省科技厅一般项目,涂料用纳米SiO2改性绿色环保醋酸纤维素水性高分子乳液的制备及性能研究(项目编号:2022GY-170);陕西省教育厅一般项目,羧酸磺酸盐型醋酸纤维素水性高分子/SiO2纳米复合皮革涂饰剂的制备及性能研究(项目编号:23JK0720)。

摘　　要：以二醋酸纤维素(CDA)为基材,二羟甲基丙酸(DMPA)、二羟甲基丁酸(DMBA)、1,5-戊二胺-3-磺酸钠(A50)、N,N-二(2-羟乙基)-2-氨基乙磺酸钠(BES-Na)、2,3-二羟基丙磺酸钠(DHPA)和N-(2-氨基乙基)-2-氨基乙烷磺酸钠(AAS)分别作为亲水剂,通过桥连剂IPDI将亲水剂引入到CDA分子中,制备CDA水性高分子乳液。结果表明:磺酸盐型亲水剂A50所制备的CDA水性高分子乳液粒径及粒径分布范围相对较小,固含量较高,乳液储存稳定性较好;羧酸盐型亲水剂DMBA所制备的CDA水性高分子乳液涂膜柔韧性较高,疏水性较强,断裂伸长率高。Cellulose diacetate(CDA)was used as the substrate,dimethylolpropionic acid(DMPA),dimethylolbutyric acid(DMBA),1,5-pentanediamine-3-sulfonic acid sodium(A50),N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid sodium(BES-Na),2,3-dihydroxypropanesulfonic acid sodium(DHPA)and N-(2-aminoethyl)-2-aminoethanesulfonic acid sodium(AAS)were used as hydrophilic agents,respectively,the hydrophilic agent was introduced into the CDA molecule by the bridging agent IPDI to prepare the CDA waterborne polymer emulsion.The results showed that the particle size and particle size distribution of CDA waterborne polymer emulsion prepared by sulfonate hydrophilic agent A50 were relatively small,the solid content was high,and the storage stability of the emulsion was good.The CDA waterborne polymer emulsion film prepared by carboxylate hydrophilic agent DMBA had high flexibility,strong hydrophobicity and high elongation at break.

关 键 词：醋酸纤维素 水性高分子乳液 羧酸盐 磺酸盐 

分 类 号：TQ35[化学工程]