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	<h1 class="NyNewsdetail_title">亲水PTFE过滤膜的结构特点说明</h1>
    <div class="NyNewsdetail_tips">更新时间：2023-02-20&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;点击次数：2459</div>
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    	<div>　　亲水PTFE过滤膜可以被水性溶液润湿，具有极其优异的化学兼容性，可耐受几乎所有有机溶剂。具有适合应用于有机溶剂、混合溶剂、酸或碱、强氧化性溶液等的除菌过滤应用。<br />&nbsp;</div><div>　　产品特点：<br />&nbsp;</div><div>　　1、亲水性<br />&nbsp;</div><div>　　2、极低的化学溶出物<br />&nbsp;</div><div>　　3、化学兼容性强<br />&nbsp;</div><div>　　4、多种孔径，满足不同需求<br />&nbsp;</div><div>　　主要结构：<br />&nbsp;</div><div>　　1、薄膜表面形态是具有蜘蛛网状的微孔结构。微纤维之间形成孔隙，微纤维排列方向与拉伸方向基本平行；纤维束的连接处即为结点，它是由许多微纤维纠缠相连形成。<br />&nbsp;</div><div>　　2、属于非对称性膜，膜的正反面微孔尺寸有差异。<br />&nbsp;</div><div>　　3、膜的截面微孔尺寸比其表面的微孔尺寸大，纵横向微孔尺寸也有差别，纵向微孔大于横向。<br />&nbsp;</div><div>　　4、膜的截面是一种网络结构，在孔的三维结构上有网状连通、孔镶套、孔道弯曲等非常复杂的变化，可能有多个微孔组成一个通道，也有可能一个微孔与多个通道相连。<br />&nbsp;</div><div>　　聚四氟乙烯膜采用由天然永jiu疏水的PTFE材质，即使在很低的压差下，也能保证潮湿空气或其它气体通行无阻，而水溶液则不能透过。其性能与亲水膜正好相反。PTFE滤膜具有很强的化学兼容性，几乎能胜任所有的有机溶剂和强腐蚀化学品的过滤。在必须用PTFE滤膜过滤水相溶液时，必须先用乙醇或异丙醇预浸润后，水相溶液才能滤过。</div>
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