Influence of stearic acid on the properties of wood-polymer composites

Q4 Chemistry

Voprosy Khimii i Khimicheskoi Tekhnologii Pub Date : 2023-10-01 DOI:10.32434/0321-4095-2023-150-5-50-54

D.S. Kryvolapov, K.M. Sukhyy, P.I. Bashtanyk, A.O. Tretyakov, V.A. Bezrukavy

引用次数: 0

Abstract

We studied the influence of stearic acid on the technological, physical-mechanical and operational properties of composites based on secondary low-pressure polyethylene filled with wood flour. It was shown that the introduction of more than 1.1 wt.% of stearic acid into the wood-polymer composite improves the technological parameters of extrusion: the torque of the main drive of the extrusion equipment decreases and productivity increases. When the concentration of stearic acid in the composite is 0.8–1.25 wt.%, there is an improvement in the physical and mechanical parameters of the composite: the bending strength increases by 20% (up to 51.3 MPa) and the Charpy impact toughness of the samples with a cut increases by 37% (up to 11.9 kJ/m2), while the coefficient of linear thermal expansion and water absorption decrease.

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硬脂酸对木-聚合物复合材料性能的影响

研究了硬脂酸对二次低压聚乙烯填充木粉复合材料工艺性能、物理力学性能和使用性能的影响。结果表明，硬脂酸在木塑复合材料中掺入1.1 wt.%以上的硬脂酸，可改善挤出工艺参数，使挤出设备主传动扭矩减小，生产效率提高。当硬脂酸在复合材料中的浓度为0.8 ~ 1.25 wt.%时，复合材料的物理力学参数得到改善:剪切试样的抗弯强度提高20%(可达51.3 MPa)，夏比冲击韧性提高37%(可达11.9 kJ/m2)，而线性热膨胀系数和吸水率降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Voprosy Khimii i Khimicheskoi Tekhnologii Chemical Engineering-Chemical Engineering (all)

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： Voprosy Khimii i Khimicheskoi Tekhnologii (Issues of Chemistry and Chemical Technology) is published bimonthly by the Ukrainian State University of Chemical Technology and accepts Ukrainian- or English language high-quality original articles and reviews concerning various fields of research in chemistry and chemical engineering. Our unusual title “Voprosy khimii i khimicheskoi tekhnologii” originates from the transliterated initial Russian title “Issues of Chemistry and Chemical Technology“. The fact of the matter is that Voprosy khimii i khimicheskoi tekhnologii was founded in 1965 as a scientific journal mainly for Russian-reading and Russian-speaking readership when «the Iron Curtain» existed. Since 1991, after Ukraine declared its independence, our Journal began to publish the articles in Ukrainian and English. Multilingualism is our established tradition. We remember and cherish our traditions, but we follow the latest trends in modern science. Papers that are multidisciplinary or address new or emerging areas of chemistry and chemical engineering are particularly encouraged. Thus, the scope is dynamic. It includes but is not limited to the traditional areas of general, inorganic, organic, analytical, physical chemistry and electrochemistry, as well as all conventional areas of chemical engineering (chemistry of high molecular compounds, technology of inorganic and organic substances, processing of combustible minerals, chemical technology of silicates, processes and apparatus of chemical productions, etc.). The Journal publishes papers dealing with newer interdisciplinary areas such as materials science, nano-science, catalysis, computational and theoretical chemistry, surface phenomenon and colloidal systems, environmental chemistry, green chemistry.