| 甘蔗渣碱法制浆废液多聚物的动态粘弹特性 |
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| 引用本文： | 杨仁党,陈克复.甘蔗渣碱法制浆废液多聚物的动态粘弹特性[J].华南理工大学学报(自然科学版),2003,31(4):93-96. |
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| 作者姓名： | 杨仁党 陈克复 |
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| 作者单位： | 华南理工大学,制浆造纸工程国家重点实验室,广东,广州,510640 |
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| 基金项目： | 华南理工大学自然科学基金资助项目(E5302250) |
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| 摘 要： | 利用Rheometrics RFSII型流变仪对甘蔗渣桨废液多聚物的动态粘弹性进行了测试。应变扫描实验得出甘蔗渣浆废液多聚物的临界应变达到0．05。在线性粘弹性范围内，频率扫描试验得出：甘蔗渣浆废液多聚物是具有一定粘弹性的粘弹体，增加固含量和提高温度都会提高复合模量G^*，粘弹性更突出。随着剪切振荡频率的增加，复合粘度下降，振荡剪切—稀化现象显著。
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| 关 键 词： | 甘蔗渣浆废液多聚物 应变扫描 频率扫描 临界应变 模量 动态粘弹性 |
| 文章编号： | 1000-565X(2003)04-0093-04 |
| 修稿时间： | 2002年12月2日 |
Dynamic Viscoelasticity of Bagasse Kraft Pulping Waste Liquor Polymer Solution |
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| Yang Ren-dang Chen Ke-fu.Dynamic Viscoelasticity of Bagasse Kraft Pulping Waste Liquor Polymer Solution[J].Journal of South China University of Technology(Natural Science Edition),2003,31(4):93-96. |
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| Authors: | Yang Ren-dang Chen Ke-fu |
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| Abstract: | The dynamic viscoelastic characterization of bagasse kraft pulping waste liquor polymer solution was measured by using Rheometrics RFSII rheometer. In the strain sweep experiment, it was found that the critical strain applied to this waste liquor polymer solution was up to 0.05. In the linear viscoelastic region, the frequency sweep measurement results showed that the waste liquor polymer solution has viscoelasticity. Increasing solids contents and raising temperatures can give birth to high complex modulus G * and then results in strong yield stress and marked viscoelasticity. When the shear oscillatory frequency rises, the complex viscosity decreases, and shear-thinning phenomenon is significant. |
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| Keywords: | bagasse kraft pulping waste liquor polymer strain sweep frequency sweep critical strain modulus dynamic viscoelastic property |
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