Environment-Friendly, High-Performance Lignin-Derived and Polyvinyl Alcohol Blended Resin for All-Green Natural Fiber-Reinforced Composite

IF 5.3 3区工程技术 Q1 ENGINEERING, MANUFACTURING International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2024-08-20 DOI:10.1007/s40684-024-00650-8

Duc Hoa Pham, Bijender Kumar, Jaehwan Kim

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Abstract

With the growing awareness of mitigating greenhouse gas emissions, developing bio-based, multi-functional, water-based and high-performance resins is in urgent demand for structural applications. This study demonstrates how water-based lignin-polyvinyl alcohol (PVA) resins can be used as a matrix in natural-fiber-reinforced composites for high-performance applications. The lignin-derived water-based resin is synthesized by blending demethylated lignin quinone (DLq) and PVA to obtain PVA-blended-DLq (PDLq) resin, followed by thermal curing. Compared to neat PVA, the optimized PDLq resin demonstrates a significant 30.5% increase in tensile strength to 162.86 MPa and a 45% improvement in Young’s modulus to 8.52 GPa. It also shows good UV shielding performance, around 100% for UVB and 99.5% for UVA. Compared to previously reported jute composites, the treated jute fiber (TJF)-reinforced PDLq composite fabricated through hot pressing demonstrates superior flexural strength, 190.9 ± 7.1 MPa and flexural modulus, ~ 13.8 GPa. The water-based PDLq resin synthesized shows potential for UV shielding and all-green natural-fiber-reinforced PDLq composite for indoor high-performance applications.

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用于全绿色天然纤维增强复合材料的环保型高性能木质素和聚乙烯醇混合树脂

随着人们对减少温室气体排放的认识不断提高，结构应用领域迫切需要开发生物基、多功能、水基和高性能树脂。本研究展示了水基木质素-聚乙烯醇（PVA）树脂如何用作天然纤维增强复合材料的基体，以实现高性能应用。木质素衍生水基树脂是通过将脱甲基木质素醌（DLq）和 PVA 混合得到 PVA-blended-DLq（PDLq）树脂，然后进行热固化合成的。与纯 PVA 相比，优化后的 PDLq 树脂的拉伸强度显著提高了 30.5%，达到 162.86 兆帕，杨氏模量提高了 45%，达到 8.52 GPa。它还具有良好的紫外线屏蔽性能，对 UVB 的屏蔽率约为 100%，对 UVA 的屏蔽率约为 99.5%。与之前报道的黄麻复合材料相比，通过热压制造的经过处理的黄麻纤维（TJF）增强 PDLq 复合材料具有更高的抗弯强度（190.9 ± 7.1 MPa）和抗弯模量（~ 13.8 GPa）。所合成的水基 PDLq 树脂显示出用于室内高性能应用的紫外线屏蔽和全绿色天然纤维增强 PDLq 复合材料的潜力。

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来源期刊

International Journal of Precision Engineering and Manufacturing-Green Technology ENGINEERING, MANUFACTURING-ENGINEERING, MECHANICAL

CiteScore

10.30

自引率

9.50%

发文量

审稿时长

5.3 months

期刊介绍： Green Technology aspects of precision engineering and manufacturing are becoming ever more important in current and future technologies. New knowledge in this field will aid in the advancement of various technologies that are needed to gain industrial competitiveness. To this end IJPEM - Green Technology aims to disseminate relevant developments and applied research works of high quality to the international community through efficient and rapid publication. IJPEM - Green Technology covers novel research contributions in all aspects of "Green" precision engineering and manufacturing.