| 仉春华,杨凤林,王文君,陈冰.聚乙烯醇改性无纺布制备及性能研究[J].,2009,(6):817-821 |
| 聚乙烯醇改性无纺布制备及性能研究 |
| Preparation and performance of surface modification of non-woven fabric by PVA (polyvinyl alcohol) |
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| DOI：10.7511/dllgxb200906007 |
| 中文关键词: 聚丙烯无纺布 聚乙烯醇 表面改性 |
| 英文关键词: polypropylene non-woven fabric PVA (polyvinyl alcohol) surface modification |
| 基金项目: |
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| 中文摘要: |
| 采用表面涂覆法，将聚乙烯醇(PVA)和戊二醛(GA)交联反应形成的薄膜固定在聚丙烯无纺布的表面，进行表面亲水改性．运用FTIR-ATR和SEM技术对改性前后无纺布表面的结构及微观形貌进行了分析，探讨了PVA/GA质量分数对薄膜固定度和表面亲水性的影响，并测试了改性无纺布的力学性能．结果表明 PVA改性将极性基团—OH和—C—O—C—引入到无纺布表面，改善了表面的亲水性能，水静态接触角从改性前的86°±1°降至改性后的43°±3°；增加PVA质量分数，改性表面亲水性增加．PVA改性增强了无纺布的力学性能，拉伸强度和撕裂强度分别提高了25.0%和21.6%． |
| 英文摘要: |
| The surface hydrophilic modification of polypropylene non-woven fabric (NWF) by the film of PVA (polyvinyl alcohol) and GA cross-linking to be immobilized on the NWF surface by dip-coating was researched. Chemical structures and morphological changes of the NWF samples surface were characterized in detail by attenuated total reflectance Fourier transform infrared (FTIR-ATR) and scanning electronic microscope (SEM). The effect of concentrations of PVA/GA on film immobilization degree and on hydrophilicity was discussed, and mechanical performance of NWF was tested. Results reveal that polar groups such as —OH, —C—O—C— are introduced to the NWF surface, hydrophilicity is improved, and water static contact angle is decreased from 86°±1° to 43°±3°. With increasing PVA concentration, surface hydrophilicity is increased. PVA modification enhances mechanical performance of NWF, tensile strength and tear resistance are increased by 25.0% and 21.6% respectively. |
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