Effect of treatment on mechanical and thermal properties of date palm fibers/polyvinyl chloride composites

IF 3.6 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2025-01-21 DOI:10.1002/vnl.22194

Hamida Boussehel, Laala Ghelani, Belhi Guerira, Abderrezak Bezazi, P. N. B. Reis, Othman Y. Alothman, Mohammad Jawaid

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引用次数: 0

Abstract

This study investigates the incorporation of date palm fibers, an abundant agricultural waste, into polyvinyl chloride (PVC) composites at a 25% fiber weight ratio. Alkali treatment, potassium permanganate oxidation, and silane coupling were applied to enhance fiber-matrix adhesion. The composites were fabricated using a hot pressing method. The results revealed significant improvements in mechanical, thermal, and moisture resistance properties for treated fibers compared to untreated ones. Potassium permanganate treatment achieved the highest tensile strength 9.57 MPa, while alkali treatment provided the highest Young's modulus about 304.5 MPa and thermal stability. Silane-treated composites exhibited the lowest water absorption. X-ray diffraction analysis showed that chemical treatments improved the crystallinity index (CI) of date palm fibers, with alkali treatment increasing CI from 28.6% to 40.5%, and potassium permanganate and silane treatments raising it to 37.5% and 41.8%, respectively. These findings highlight the potential of treated date palm fiber composites as sustainable alternatives for industrial applications such as construction and automotive, aligning with both economic and environmental objectives.

Highlights

Enhanced PVC composites using date palm fibers.
Alkali, permanganate, and silane treatments improve mechanical properties.
Permanganate treatment achieves the highest tensile strength.
Reduced water absorption and improved thermal stability in treated composites.
Sustainable application of agricultural waste in industrial materials.

Abstract Image

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处理对枣椰树纤维/聚氯乙烯复合材料力学和热性能的影响

本研究研究了将丰富的农业废弃物枣棕榈纤维以25%的纤维重量比掺入聚氯乙烯（PVC）复合材料中。碱处理、高锰酸钾氧化和硅烷偶联可以增强纤维与基体的附着力。采用热压法制备了复合材料。结果显示，与未经处理的纤维相比，处理过的纤维在机械、热和防潮性能方面有显著改善。高锰酸钾处理的拉伸强度最高，为9.57 MPa，碱处理的杨氏模量最高，为304.5 MPa，热稳定性最高。硅烷处理的复合材料吸水率最低。x射线衍射分析表明，化学处理提高了枣椰树纤维的结晶度指数（CI），碱处理使其结晶度指数从28.6%提高到40.5%，高锰酸钾和硅烷处理分别提高到37.5%和41.8%。这些发现突出了处理过的椰枣纤维复合材料作为建筑和汽车等工业应用的可持续替代品的潜力，符合经济和环境目标。使用椰枣纤维增强PVC复合材料。碱、高锰酸盐和硅烷处理可改善机械性能。高锰酸盐处理达到最高的抗拉强度。经过处理的复合材料吸水率降低，热稳定性提高。农业废弃物在工业材料中的可持续应用。

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

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.