Acrylonitrile-methyl Methacrylate Copolymer Films Containing Microencapsulated n-Octadecane  

作　　者：李军 韩娜 张兴祥 

机构地区：[1]Tianjin Municipal Key Lab of Fiber Modification and Functional Fibers, Tianjin Polytechnic University

出　　处：《Journal of Donghua University(English Edition)》2006年第5期10-14,共5页东华大学学报（英文版）

基　　金：Supported by National Natural Science Foundation of China (No.50573058) and Specialized Research Found for the Doctoral Programof Higher Education (No.20050058004)

摘　　要：Acryionitrilv-methyi mcthacrylate copolymer was synthesized in aqueous solution by Redox. The copolymer was mixed with 10 - 40 wt% of microencapsulated n-octadecane （MieroPCMs） in water. Copolymer films containing Mi- eroPCMs were cast at room temperature in N, N- imethyiformamide solution. The copolymer of acrylonitrile-methyl methacrylate and the copolymer films containing MicroPC- Ms were characterized by using Fourier Transform Infrared Spectroscopy （FTIR）, Differential Scanning Calorimetry （DSC）, Thermosravimetrlc Analyzer （TG）, X-ray Diffraction （XRD） and Scanning Electron Microscopy （SEM）, etc. The mierocapsules in the films are evenly distributed in the copolymer matrix. The heat-absorbing temperatures and heat-evolving temperatures of the films are almost the same as that of the MieroPCMs, respectively, and fluctuate in a slight range. In addition, the enthalpy efficiency of MieroPCMs rises with the contents of MicroPCMs increasing. The crystallirdty of the film increases with the contents of MicroPOMs increasing.Acrylonitrile-methyl methacrylate copolymer was synthesized in aqueous solution by Redox. The copolymer was mixed with 10-40 wt% of microencapsulated n-octadecane (MicroPCMs) in water. Copolymer films containing MicroPCMs were cast at room temperature in N, N-Dimethylformamide solution. The copolymer of acrylonitrile-methyl methacrylate and the copolymer films containing MicroPCMs were characterized by using Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), Thermogravimetric Analyzer (TG), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM), etc. The microcapsules in the films are evenly distributed in the copolymer matrix. The heat-absorbing temperatures and heat-evolving temperatures of the films are almost the same as that of the MicroPCMs, respectively, and fluctuate in a slight range. In addition, the enthalpy efficiency of MicroPCMs rises with the contents of MicroPCMs increasing. The crystallinity of the film increases with the contents of MicroPCMs increasing.

关 键 词：acrylonitrile-methyl methacrylate copolymer MicroPCMs FILM heat storage. 

分 类 号：TQ325[化学工程—合成树脂塑料工业]