王琪,高嘉雯,邵宇正,梁检,陈蔚淇,沙九龙
WANG Qi,GAO Jia-wen,SHAO Yu-zheng,LIANG Jian,CHEN Wei-qi,SHA Jiu-long

• 1:广西清洁化制浆造纸与污染控制重点实验室广西大学轻工与食品工程学院

摘要(Abstract)：

为探究纤维的絮凝分散特性,对聚丙烯和聚酯纤维悬浮液进行流态化测试,探索了两种纤维悬浮液中纤维网络交织强度、临界湍流雷诺数与悬浮液质量浓度间的关系,并计算得到能量耗散因子与纤维悬浮液网络交织强度间的定量变化关系。结果表明:两种纤维悬浮液的剪切屈服应力随着质量浓度的增大呈指数式增大,临界湍流雷诺数与纤维质量浓度间呈正相关变化关系,其能量耗散因子随着屈服应力的增大而增大,且与剪切屈服压力满足二次函数关系。
In order to explore the flocculation and dispersion characteristics of fibers, the fluidization tests on polypropylene and polyester fiber suspensions were conducted at low mass concentrations, and the fiber network strength, critical turbulent Reynolds number were explored. Moreover, the quantitative relationship between energy dissipation factor and fiber suspension network strength was calculated. The results show that the shear yield stress of the two fiber suspensions increase exponentially with the increase of the concentration, while the critical turbulent Reynolds numbers have a positive correlation with fiber concentration, and the energy dissipation factor increases with the increase of the yield stress, and it satisfies a quadractic function relationship with the shear yield stress.

关键词(KeyWords)： 聚丙烯纤维;聚酯纤维;剪切屈服应力;临界雷诺数;能量耗散因子
polypropylene fiber;polyester fiber;shear yield stress;critical Reynolds number;energy dissipation factor

Abstract:

Keywords:

基金项目(Foundation): 广西自然科学基金项目(2019GXNSFAA185010)

作者(Author): 王琪,高嘉雯,邵宇正,梁检,陈蔚淇,沙九龙
WANG Qi,GAO Jia-wen,SHAO Yu-zheng,LIANG Jian,CHEN Wei-qi,SHA Jiu-long

DOI: 10.16090/j.cnki.hcxw.2021.06.001

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