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Influence of variety and mass ratio of PVA on tougheningeffect of PVA/HPSS composite film(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2018年02期
Page:
254-
Research Field:
Publishing date:

Info

Title:
Influence of variety and mass ratio of PVA on tougheningeffect of PVA/HPSS composite film
Author(s):
Xu ZhenzhenXu XiaofengLi WeiLi Changlong
College of Textiles and Garments,Anhui Polytechnic University,Wuhu 241000,China
Keywords:
hydroxypropylsulfonated starch polyvinyl alcohol varieties mass ratios composite films
PACS:
TB332
DOI:
10.14177/j.cnki.32-1397n.2018.42.02.019
Abstract:
To improve the property and the film usability of starch,the hydroxypropylsulfonated cornstarch(HPSS)is prepared by the starch hydroxypropylsulfonation. The effect of variety and mass ratio of the polyvinyl alcohol(PVA)on the toughness of PVA/HPSS composite films is studied by taking the film breaking strength and breaking elongation as the quantization index. It is found that,compared with that of the HPSS film,the breaking strength of the PVA-0599/HPSS,the PVA-1788/HPSS and the PVA-1799/HPSS decreases,while the breaking elongation remarkably increases,and the PVA-1799 shows the best toughening effect. As the mass ratio of the PVA-1799 increases from 0% to 50%,the breaking strength decreases from 28.9 MPa to 15.9 MPa,and the breaking elongation of the PVA-1799/HPSS increases from 4.1% to 16.3%. The resulting indicates that the preferable mass ratio of the PVA-1799 is 30%~40%.

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Last Update: 2018-04-30