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聚丙烯蜡对纸张表面疏水性的影响
Improvement of Paper Surface Hydrophobicity with Polypropylene Wax
收稿日期:  
DOI:10.11980/j.issn.0254-508X.2014.10.004
关键词:  MWPP  复合胶膜  低表面能  疏水
Key Words:modified WPP  blend film  low-surface-energy  hydrophobicity
基金项目:
作者单位
肖圣威1 1.浙江工业大学化学工程与材料学院浙江杭州310014 
王德海1,* 1.浙江工业大学化学工程与材料学院浙江杭州310014 
杜治波1 1.浙江工业大学化学工程与材料学院浙江杭州310014 
胡杨飞1 1.浙江工业大学化学工程与材料学院浙江杭州310014 
蒋仕强2 2.浙江高阳纸业有限公司浙江富阳311400 
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摘要:用改性聚丙烯蜡(MWPP)乳液与羧基丁苯胶乳共混,将复合乳液应用于纸张表面施胶,研究不同改性的MWPP及其含量对纸张表面疏水性能的影响。利用偏光显微镜、原子力显微镜(AFM)和接触角测量仪测试丁苯-MWPP复合胶膜的表面性能。结果表明,MWPP在复合胶膜表面形成“海岛型”突起结构;当MWPP含量由0增加到5%时,复合乳液涂布的白纸板的表面水接触角从65.35°提高到114.83°;胶膜厚度对复合胶膜表面水接触角和表面能影响不大。
Abstract:The complex emulsions which were prepared by blending carboxyl styrene-butadiene latex with modified polypropylene wax (MWPP) emulsions were applied to paper coating, and the effects of different kinds and contents of MWPP on paper surface hydrophobicity were researched. The surface properties of styrene-butadiene-MWPP blended films were analyzed by polarizing microscopy, AFM(Atomic Force Microscopy) and contact angle measurements. The results showed that “island-type” structures of MWPP were formed on the blended film. Water contact angle of blended film surface increased from 65.35° to 114.83° with the increasing of MWPP content from 0 to 5%. Meanwhile, coating thickness had little impact on water contact angle and surface energy of the blended film.
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