中空氧化锌的制备及其复合乳液的性能研究

Properties of poly aery late/hollow ZnO composite emulsion

通过水热法制备中空ZnO,研究了体系pH值、反应时间及反应温度等因素对中空ZnO形貌的影响,并将其与聚丙烯酸酯乳液物理共混,制备聚丙烯酸酯/中空ZnO复合乳液,对复合乳液所成薄膜的透水汽性、耐水性、力学性能进行测试.结果表明:采用水热法成功制备了中空ZnO,体系pH值、反应时间及反应温度对中空ZnO的形貌均有显著影响.当体系pH值为11.5、反应时间为9h、反应温度为92℃时,所制备的中空ZnO复合薄膜的耐水性、透水汽性、抗张强度以及断裂伸长率相较纯聚丙烯酸薄膜分别提升了38.10%、103.91%、144.53%和79.52%.

Hollow ZnO was fabricated via hydrothermal method.The effects of pH,reaction time and reaction temperature on the morphology of hollow ZnO were investigated in detail.The polyacrylate/hollow ZnO composite emulsion was obtained by physical blending of polyacrylate emulsion and hollow ZnO.The water vapor permeability,water resistance and mechanical properties of polyacrylate/hollow ZnO composite film were measured.The results show that the hollow ZnO is successfully fabricated.The pH,reaction time and reaction temperature play an important role for the morphology of hollow ZnO.Compared with polyacrylate film,the water resistance,water vapor permeability,tensile strength and elongation at break of the polyacrylate/hollow ZnO composite films prepared at pH value of 11.5,reaction time of 9 h and reaction temperature of 92℃increase by 38.10%,103.91%,144.53%and 79.52%,respectively.