Potential reinforcing properties of silane-modified rapeseed straw fibers in friction composites: Fractal dimension and circularity characterise powder flowability

文献类型： 外文期刊

第一作者： Zhang, Qifeng

作者： Zhang, Qifeng;Qi, Zicheng;Yao, Yumei;Zhang, Dexue;Ren, Dongmei;Zhang, Qifeng;Ma, Yunhai;Zhang, Dexue;Zhang, Qifeng;Qi, Zicheng;Yao, Yumei;Zhang, Qifeng;Qi, Zicheng;Yao, Yumei;Chen, Mingjiang

作者机构：

关键词： Rapeseed straw fiber; Silane modification; Powder flowability; Fractal dimension; Morphological shape; Friction composites

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：5.9； 五年影响因子：6.0 ）

ISSN： 0926-6690

年卷期： 2023 年 206 卷

页码：

收录情况： SCI

摘要： The powder flowability of natural reinforcing fibers significantly affects their reinforcement. Cellulose reinforced fibers (RSF) were extracted from rapeseed straw waste and treated with silane-ethanol solution modification. Fractal dimension and three major shape factors (circularity, elongation and compactness) were used to characterise the flowability of RSF. The silane-modified RSF was characterised by fractal features and fractal dimension was the main factor affecting its flowability. k-mean clustering and box-plot analyses indicated that circularity had the most significant effect on flowability among all shape factors. Multiple stepwise regression analysis further yielded a two-parameter equation characterising the quantitative relationship between flow -ability and the combination of fractal dimension and circularity. Moreover, the incorporation of RSF resulted in an important transformation in the wear mechanism of the friction composites towards single abrasive wear, with a 44.1% increase in wear resistance.

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