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环氧树脂处理对麻纤维增强植物源聚酰胺 1010 生物质复合材料力学和摩擦学性能的影响。

Influence of Epoxy Resin Treatment on the Mechanical and Tribological Properties of Hemp-Fiber-Reinforced Plant-Derived Polyamide 1010 Biomass Composites.

机构信息

Department of Mechanical Engineering, Graduate School of Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan.

Tokyo Metropolitan Industrial Technology Research Institute, 2-4-10, Aomi, Kotoku, Tokyo 135-0064, Japan.

出版信息

Molecules. 2021 Feb 25;26(5):1228. doi: 10.3390/molecules26051228.

DOI:10.3390/molecules26051228
PMID:33668952
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7956458/
Abstract

In this study, we investigated the influence of epoxy resin treatment on the mechanical and tribological properties of hemp fiber (HF)-reinforced plant-derived polyamide 1010 (PA1010) biomass composites. HFs were surface-treated using four types of surface treatment methods: (a) alkaline treatment using sodium chlorite (NaClO) solution, (b) surface treatment using epoxy resin (EP) solution after NaClO alkaline treatment, (c) surface treatment using an ureidosilane coupling agent after NaClO alkaline treatment (NaClO + A-1160), and (d) surface treatment using epoxy resin solution after the (c) surface treatment (NaClO + A-1160 + EP). The HF/PA1010 biomass composites were extruded using a twin-screw extruder and injection-molded. Their mechanical properties, such as tensile, bending, and dynamic mechanical properties, and tribological properties were evaluated by the ring-on-plate-type sliding wear test. The strength, modulus, specific wear rate, and limiting value of HF/PA1010 biomass composites improved with surface treatment using epoxy resin (NaClO + A-1160 + EP). In particular, the bending modulus of NaClO + A-1160 + EP improved by 48% more than that of NaClO, and the specific wear rate of NaClO + A-1160 + EP was one-third that of NaClO. This may be attributed to the change in the internal microstructure of the composites, such as the interfacial interaction between HF and PA1010 and fiber dispersion. As a result, the mode of friction and wear mechanism of these biomass composites also changed.

摘要

在这项研究中，我们研究了环氧树脂处理对麻纤维（HF）增强植物衍生聚酰胺 1010（PA1010）生物基复合材料的机械和摩擦学性能的影响。HF 采用四种表面处理方法进行表面处理：（a）使用次氯酸钠（NaClO）溶液的碱性处理，（b）NaClO 碱性处理后用环氧树脂（EP）溶液处理，（c）NaClO 碱性处理后用尿烷硅烷偶联剂处理（NaClO + A-1160），和（d）（c）表面处理后用环氧树脂溶液处理（NaClO + A-1160 + EP）。HF/PA1010 生物基复合材料使用双螺杆挤出机挤出并注塑成型。通过环盘式滑动磨损试验评估其力学性能，如拉伸、弯曲和动态力学性能，以及摩擦学性能。HF/PA1010 生物基复合材料的强度、模量、比磨损率和极限值随着环氧树脂（NaClO + A-1160 + EP）的表面处理而提高。特别是，NaClO + A-1160 + EP 的弯曲模量比 NaClO 提高了 48%，NaClO + A-1160 + EP 的比磨损率是 NaClO 的三分之一。这可能归因于复合材料内部微观结构的变化，例如 HF 和 PA1010 之间的界面相互作用和纤维分散。因此，这些生物基复合材料的摩擦磨损机制也发生了变化。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6462/7956458/752d36d010ce/molecules-26-01228-g013.jpg
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