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Semipermeable membrane support, manufacturing methods and semipermeable membrane semipermeable membrane support
Semipermeable membrane support, manufacturing methods and semipermeable membrane semipermeable membrane support
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机译:半透膜支持体,制造方法和半透膜支持体
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摘要
PROBLEM TO BE SOLVED: To provide a semipermeable membrane support that is superior in alkali resistance, strength, smoothness and adhesion with a semipermeable membrane.;SOLUTION: The semipermeable membrane support is produced by heat treatment of fiber sheets containing polyolefin principal fibers and polyolefin binder fibers as fibrous components. The polyolefin binder fibers contain first core-sheath type conjugate fibers obtained by using polypropylene-based resins as core materials and low melting point polypropylene-based resins as sheath materials, and second core-sheath type conjugate fibers obtained by using polypropylene-based resins as core materials and low density polyethylene-based resins as sheath materials. The semipermeable membrane support has a smoothness of 2 seconds or more and 120 seconds or less, an air permeability of 0.2 cc/cm2 per second or more and 50.0 cc/cm2 per second or less, a tensile strength in the 5% extension of 1.0 kN/m or more, and a basis weight of 20 g/m2 or more.;COPYRIGHT: (C)2014,JPO&INPIT
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机译:解决的问题:提供一种具有优异的耐碱性,强度,光滑度和与半透膜的粘合性的半透膜载体;解决方案:该半透膜载体是通过对包含聚烯烃主要纤维和聚烯烃粘合剂的纤维片材进行热处理制成的纤维作为纤维成分。聚烯烃粘合剂纤维包含:以聚丙烯系树脂为芯材,低熔点聚丙烯系树脂为外皮材的第一芯鞘型复合纤维,以及以聚丙烯系树脂为芯材的第二芯鞘型复合纤维。核心材料和低密度聚乙烯基树脂作为外皮材料。半透膜支撑体的平滑度为2秒以上且120秒以下,透气度为0.2cc / cm 2 Sup>每秒以上且50.0cc / cm 2 Sup >每秒或更少,5%延伸率的拉伸强度为1.0 kN / m或更高,基重为20 g / m 2 Sup>或更高。COPYRIGHT:(C)2014,日本特许厅
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