浆料混溶性对共混浆膜力学性能的影响

doi:10.13475/j.fzxb.20160905805

纺织学报 ›› 2017, Vol. 38 ›› Issue (10): 65-69.doi: 10.13475/j.fzxb.20160905805

浆料混溶性对共混浆膜力学性能的影响

收稿日期:2016-09-28 修回日期:2017-06-23 出版日期:2017-10-15 发布日期:2017-10-16

Influence of size compatibility on mechanical properties of blended size films

Received:2016-09-28 Revised:2017-06-23 Online:2017-10-15 Published:2017-10-16

摘要/Abstract

摘要：

针对浆料混溶性对共混浆膜力学性能的影响，以变性淀粉/ 聚乙烯醇（PVA）共混物为研究对象，探讨了变性淀粉/PVA间的共混比、PVA醇解度对共混物浆膜性能和浆液黏附力的影响，并通过扫描电子显微镜和X射线衍射仪对共混浆膜的织态结构进行了微观表征，分析了浆料组分数与浆膜性能的关系。结果表明，当PVA1799 与变性淀粉的共混比为40：60时，共混浆膜的断裂强力、断裂伸长达到最大值，纯棉粗纱的浆液黏附力较理想；低醇解度的PVA 会使共混浆膜的相畴增大，结晶性变差，削弱了共混膜的各项力学性能。为提高浆料的混溶性，增强共混膜的力学性能，浆料配方组分宜尽可能少。

关键词: 浆料混溶性, 浆膜性能, 黏附性能, 浆料组分, 变性淀粉, 聚乙烯醇

Abstract:

The influence of sizes compatibility on the mechanical properties of blended size films and corresponding pulp adhesion were studied. The morphological structure of the blended size films were characterized by using scanning electron microscope and X-ray diffraction, and the relationsip between different size components and film properties was investigated. It is found that, when the mixing ratio of polyvingl alcohol (PVA1799)/modified starch is 40 to 60, the blended size pulp has the greatest adhesion force and the blended size film has the greatest tensile strength and elongation, and PVA polymers having low degree of alcogolysis (PVA1788 ) can cause the phase separation and smaller crystallinity in the blended films, which lead to the poorer mechanical properties of the blended films. In order to rise size compatibility and strengthen mechanical properties of blended films, size components should be as few as possible.

Key words: size compatibility, size film property, adhesion, size component, modified starch, polyvinyl alcohol

武海良姚一军沈艳琴毛宁涛. 浆料混溶性对共混浆膜力学性能的影响[J]. 纺织学报, 2017, 38(10): 65-69.

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浆料混溶性对共混浆膜力学性能的影响

Influence of size compatibility on mechanical properties of blended size films

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