彭慧丽,孙昊,张新昌.基于挤出工艺的生物质纤维物料加工流变性能[J].包装工程,2014,35(11):53-58.
PENG Hui-li,SUN Hao,ZHANG Xin-chang.Rheological Properties of Biomass Fiber Material Based on Extrusion Process[J].Packaging Engineering,2014,35(11):53-58. |
| 基于挤出工艺的生物质纤维物料加工流变性能 |
| Rheological Properties of Biomass Fiber Material Based on Extrusion Process |
| 投稿时间：2014-02-11 修订日期：2014-06-01 |
| DOI： |
| 中文关键词: 废纸纤维 淀粉 流变性能 均匀性 黏度 |
| 英文关键词: paper fiber starch rheological properties uniformity viscosity |
| 基金项目: |
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| 中文摘要: |
| 目的 采用 Discovery HR系列旋转流变仪测定废纸纤维与淀粉混合物料体系的流变性能， 研究不同配方废纸纤维与淀粉之间的混合均匀性， 探讨淀粉种类、淀粉含量和增塑剂配比等对物料体系加工性能的影响。 方法 通过三因素三水平正交实验方法制备生物质纤维物料， 选择合适的测试参数，以复数黏度-频率曲线和黏度-剪切速率曲线为参考， 探讨其加工流变性能。 结果 在温度为 85 ℃的恒温水浴锅中水浴加热 15 min时， 废纸纤维和淀粉之间均匀分散， 不同淀粉种类、不同淀粉含量和不同增塑剂配比的物料体系均呈剪切变稀特性。 影响物料黏度的因素顺序为淀粉含量>淀粉种类>增塑剂配比， 主要表现为玉米淀粉物料黏度低于马铃薯淀粉物料黏度， 且随着淀粉含量的增加， 物料黏度增加。 结论 生物质纤维物料的加工流变性能受到淀粉种类、淀粉含量和增塑剂配比的影响。 |
| 英文摘要: |
| Objective To characterize the rheological properties of paper fiber and starch mixed material system using Discovery HR Series rotational rheometer, and to study the mixed uniformity of different formulations between the paper fiber and starch, as well as the effects of starch types, starch content and plasticizers ratios on the processing performance of the materials systems. Methods Biomass fiber materials were prepared using three-factor three-level orthogonal test method. Appropriate test parameters were chosen, and the plural viscosity-frequency curve and viscosity-shear rate curve were used as references, to discuss the rheological properties. Results Paper fiber and starch showed uniform dispersion after 15 min incubation at 85 ℃ in a water bath. The materials systems with different starch types, different starch content and different plasticizers ratios showed shear thinning properties. The order of factors affecting the viscosity of the materials systems was starch content |
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