酮肼自交联聚丙烯酸酯核壳乳液的制备及性能  

Preparation and Properties of Keto-hydrazide Self-cross-linked Polyacrylate Core-shell Emulsion

作　　者：蒋欢 李银涛 王善强 何智宇 陈长稳 周元林 JIANG Huan;LI Yintao;WANG Shanqiang;HE Zhiyu;CHEN Changwen;ZHOU Yuanlin(State Key Laboratory of Environmentally-friendly Energy Materials,School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China;State Key Laboratory of NBC Protection for Civilian,Beijing 102205,China)

机构地区：[1]西南科技大学环境友好能源材料国家重点实验室,四川绵阳621010 [2]国民核生化灾害防护国家重点实验室,北京102205

出　　处：《西南科技大学学报》2022年第4期9-17,共9页Journal of Southwest University of Science and Technology

基　　金：国家自然科学基金(11zg2119);国民核生化灾害防护国家重点实验室基金项目(SKLNBC2018-16);环境友好能源材料国家重点实验室基金项目(17FKSY0105)。

摘　　要：以丙烯酸丁酯(BA)、甲基丙烯酸甲酯(MMA)、甲基丙烯酸缩水甘油酯(GMA)为单体原料,合成一种具备核壳结构的聚合物乳液,在此基础上,以双丙酮丙烯酰胺(DAAM)和己二酸二酰肼(ADH)为交联体系,合成得到一种自交联聚丙烯酸酯核壳乳液。产物的FT-IR,TEM,DSC测试表明该体系发生了交联反应且乳液胶乳粒子具有核壳结构;力学性能测试表明当DAAM和ADH的质量比为1时,聚合物乳液涂膜的拉伸强度可达6.92 MPa,比交联前提高了57.99%;接触角测试得出交联改性后的聚合物具有较低的接触角,提高了聚合物对粉尘颗粒的润湿性,解释了该聚合物与粉尘颗粒的作用机制。合成的自交联聚丙烯酸酯核壳乳液作为可剥离型去污剂在表面放射性去污方面具有良好的应用前景。A polymer emulsion with core-shell structure was synthesized and prepared by using butyl acrylate(BA),methyl methacrylate(MMA)and glycidyl methacrylate(GMA)as monomeric raw materials,and a self-cross-linked polyacrylate core-shell emulsion was obtained by using diacetone acrylamide(DAAM)and hydrazide adipate(ADH)as cross-linking system.The test results of FT-IR,TEM and DSC of the products show that the system is cross-linked and the emulsion latex particles have a core-shell structure.When the mass ratio of DAAM and ADH is 1,the tensile strength of the polymer emulsion coated film can reach 6.92 MPa,which is 57.99%higher than that before cross-linking.Through the contact angle test,the cross-linked modified polymer has low contact angle,which improvs the wettability of the polymer to dust particles and explains the mechanism of interaction between the polymer and dust particles.This synthetic self-cross-linked polyacrylate core-shell emulsion is expected to have good application prospects as a peelable decontaminant for surface radioactive decontamination.

关 键 词：聚合物乳液 核壳结构 自交联聚丙烯酸酯 可剥离表面去污剂 

分 类 号：TQ421[化学工程] X771[环境科学与工程—环境工程]