| 纸张增强剂APAM的分子质量对其增强性能的影响 |
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| 引用本文： | 李云华,刘书钗.纸张增强剂APAM的分子质量对其增强性能的影响[J].中国造纸,2005,24(5):15-17. |
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| 作者姓名： | 李云华 刘书钗 |
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| 作者单位： | 陕西科技大学,陕西省造纸技术及特种纸品开发重点实验室,陕西,咸阳,712081 |
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| 基金项目： | 陕西科技大学校科研和教改项目 |
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| 摘 要： | 以丙酮作为沉淀剂,采用逐步沉淀分级法,将相对分子质量为52.4万的APAM(聚丙烯酰胺)分为相对分子质量为65.4万、59.7万、51.6万、40.9万、28.2万的5个级分.用红外光谱和GPC对APAM进行了结构表征,并分别将这5个级分的APAM用于阔叶木浆、麦草浆和废纸浆的纸张增强,得出APAM分子质量与其提高纸张强度性能的关系.
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| 关 键 词： | 阴离子聚丙烯酰胺 沉淀分级 增强剂 |
| 文章编号： | 0254-508X(2005)05-0015-03 |
| 修稿时间： | 2004年10月20 |
Effect of Molecular Weight of APAM on its Paper Strengthening Ability |
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| LI Yun-hua,LIU Shu-chai.Effect of Molecular Weight of APAM on its Paper Strengthening Ability[J].China Pulp & Paper,2005,24(5):15-17. |
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| Authors: | LI Yun-hua LIU Shu-chai |
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| Abstract: | APAM of wide molecular weight distribution was fractionated to five products of different molecular weight and with narrow molecular weight distribution by stepwise precipitation using acetone as precipitating agent. The relation between molecular weight of APAM and its paper strengthening ability can be found by comparing the strengthening effect of five products on hardwood pulp, wheat straw pulp and waste paper pulp. |
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| Keywords: | APMP precipitation fractionation strehgthening additive |
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