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用原位聚合法制备了苯乙烯/二乙烯苯囊壁的正十八烷微胶囊,并将其添加到海藻酸钠/聚乙烯醇(SA/PVA)共混溶液中,制成具有调温性能的共混膜,采用SEM、DSC、FT-IR等对膜的结构和性能进行了测试。结果表明,正十八烷微胶囊的加入,对由两种高聚物共混而制成的膜的形态有一定的影响,共混膜的表面出现孔洞现象;随着正十八烷微胶囊含量的增加,共混膜的熔融热焓和结晶热焓逐渐增加,但其断裂强力和断裂伸长率却逐渐降低。
The n-octadecane microcapsule with styrene / divinyl benzene wall was prepared by in-situ polymerization and added to the sodium alginate / polyvinyl alcohol (SA / PVA) Performance of the blend membrane, the use of SEM, DSC, FT-IR, such as the membrane structure and performance were tested. The results showed that the addition of n-octadecane microcapsule had a certain influence on the morphology of the membrane formed by the blending of two polymers, and the appearance of holes on the surface of the blend membrane. With the octadecane microcapsule The melting enthalpy and crystallization enthalpy of the blend membrane increase gradually, but the breaking strength and elongation at break gradually decrease.