| 魔芋葡甘聚糖接枝共聚物／聚乙烯醇共混表面施胶剂的制备及性能 |
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| 引用本文： | 辛华,赵艳娜,何宦.魔芋葡甘聚糖接枝共聚物／聚乙烯醇共混表面施胶剂的制备及性能[J].中华纸业,2013(22):19-21. |
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| 作者姓名： | 辛华 赵艳娜 何宦 |
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| 作者单位： | 陕西科技大学轻化工助剂化学与技术省部共建教育部重点实验室；化学与化工学院,西安710021 |
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| 基金项目： | 基金项目：陕西省教育厅科研专项（2013JK0683）,大学生创新创业训练项目（201210708031）,陕西科技大学学术骨干培育计划（XSGP201211）,陕西省自然科学基金青年项目（2012JQ6015）. |
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| 摘 要： | 选用丙烯酸和丙烯酸丁酯为单体对魔芋葡甘露聚糖（KGM）进行自由基接枝共聚改性，将得到的聚合物乳液与聚乙烯醇共混，共混后乳液作为纸张表面施胶剂，研究其对纸张性能的影响。结果表明：改性后KGM粒子被共聚物包裹形成核一壳结构，复合乳胶粒子的粒径在40～50nm之间，KGM亲水性下降，结晶性也得到了一定的提高。KGM接枝共聚物乳液／聚乙烯醇共混乳液对纸张进行表面施胶处理后，纸张的施胶度、耐折度和抗张指数也得到了明显的提高。
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| 关 键 词： | 魔芋葡甘露聚糖 聚乙烯醇 接枝改性 表面施胶剂 |
Preparation and properties of konjac glucomannan grafted copolymer/polyvinyl alcohol blends as surface sizing agent |
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| XIN Hua,ZHAO Yan-na,HE Huan.Preparation and properties of konjac glucomannan grafted copolymer/polyvinyl alcohol blends as surface sizing agent[J].China Pulp & Paper Industry,2013(22):19-21. |
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| Authors: | XIN Hua ZHAO Yan-na HE Huan |
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| Affiliation: | (College of Chemistry and Chemical Industry; Key Laboratory of Additives Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi＇an 710021, China) |
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| Abstract: | In this paper, konjac glucomannan grafted copolymer was prepared by graft copolymerization of methyl acrylate（AA） and butyl acrylate（BA）, then blending PVA and konjac glucomannan grafted copolymcr was used as surface sizing agent. The grafted copolymer was characterized by infrared spectroscopy（IR）, transmission electron microscopy （TEM） and X-ray diffraction analysis（XRD）. The results indicate that the grafted copolymer emulsion is core-shell structure（40-50nm） and the crystallinity is improved. When grafted copolyrner/PVA blends is used as paper surface sizing agent, paper folding endurance, sizing value and tensile index are significantly improved. |
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| Keywords: | konjac glucomannan （KGM） polyvinyl alcohol （ PVA） grafted modification surface sizing agent |
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