无机颜料对麦草/PVC复合材料环境老化性能的影响

IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2025-04-09 DOI:10.1016/j.coco.2025.102399

Junqian Yang, Keping Zhang, Yanan Zhang, Zhongqing Yang, Xi Zhang

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引用次数: 0

摘要

为了揭示无机颜料对麦秸/聚氯乙烯复合材料（WSPC）在室外自然环境条件下老化行为的影响，对添加氧化铁颜料（红、黄、蓝）和炭黑颜料的WSPC进行了5个月的室外自然老化试验。在老化过程中测试了复合材料的物理性能、力学性能、表面形貌、颜色稳定性和热稳定性，并研究了复合材料在复杂自然环境中多种因素影响下的老化机理。结果表明：无机颜料的加入降低了复合材料的孔隙率，延缓了时效过程中裂纹的扩展，减少了复合材料物理力学性能的损失；炭黑颜料对复合材料的固色和性能保持贡献最大，老化过程中部分组分的降解提高了复合材料的热稳定性。本文创新性地研究了无机颜料调色后木塑复合材料在自然环境下的老化行为。研究结果对木塑复合材料的色彩调节和室外抗老化性能的提高具有一定的指导意义。

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Effects of inorganic pigments on environmental aging behavior of wheat straw /PVC composites

Aim to reveal the effects of inorganic pigments on the aging behavior of wheat straw/PVC composites (WSPC) under outdoor natural environment conditions, the WSPC with iron oxide pigments (red, yellow, blue) and carbon black pigment were subjected to outdoor natural aging tested for 5 months. The physical properties, mechanical properties, surface morphology, color stability and thermal stability of the composites were tested during the aging process, and the aging mechanism of composites under the influence of multiple factors in a complex natural environment was investigated. The results show that the porosity of the composite was reduced by the addition of inorganic pigments, the crack propagation was delayed during the aging process, and the loss of physical and mechanical properties of the composite was reduced. The carbon black pigment made the most significant contribution to the color fixation and property retention of the composite, and the degradation of some components during the aging process improved the thermal stability of the composite. This paper innovatively studied the aging behavior of wood-plastic composites after color regulation with inorganic pigments under natural environment exposure. The study is useful for color regulation of wood-plastic composites and the improvement of its aging resistance in outdoor applications.

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.