通过臭氧处理,聚偏氟乙烯(PVDF)表面产生活性基团,经热引发自由基聚合成功将亲水性聚丙烯酸链接枝在PVDF上,然后使用干湿法纺丝制备中空纤维.使用红外,SEM,接触角测试仪与通量测试仪表征样品.本文主要研究臭氧处理时间对中空纤维亲水性的影响.结果表明,相对纯PVDF中空纤维,改性后的中空纤维具有特殊的形貌结构,较低的水接触角和较高的纯水通量.
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