厚朴酚环氧树脂涂层的制备及综合防护性能研究

李柱, 黄橹, 韩飞, 安然, 郭小平, 刘栓

doi:10.16577/j.issn.1001-1560.2024.0057

材料保护 >

2024 , Vol. 57 >Issue 3: 70 - 79

DOI: https://doi.org/10.16577/j.issn.1001-1560.2024.0057

研究篇

厚朴酚环氧树脂涂层的制备及综合防护性能研究

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(1. 宁波大学材料科学与化学工程学院，浙江宁波315211；
2. 中国科学院海洋新材料与应用技术重点实验室浙江省海洋材料与防护技术重点实验室
中国科学院宁波材料技术与工程研究所,浙江宁波315201；
3. 杭州本创科技有限公司, 浙江杭州310030）

刘栓(1986-), 博士, 高级工程师, 研究方向为海洋重防腐涂料，E-mail:liushuan@nimte.ac.cn

收稿日期: 2023-06-12

修回日期: 2023-08-14

录用日期: 2023-09-14

网络出版日期: 2024-03-19

基金资助

国家重点研发计划项目(2023YFC2809901)；杭州本创科技公司科技项目；中科院海洋新材料与应用技术重点实验室开放课题

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Preparation and Comprehensive Protective Performance Study of Thickened Magnolol Epoxy Resin Coatings

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(1. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;
2. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies,
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
3. Hangzhou Benchuang Technology Co., Ltd., Hangzhou 310030, China)

LIU Shuan (1986-), Ph.D., Senior Engineer, Research Focus: Marine Heavy-Duty Anti-corrosion Coatings, E-mail: liushuan@nimte.ac.cn

Received date: 2023-06-12

Revised date: 2023-08-14

Accepted date: 2023-09-14

Online published: 2024-03-19

Supported by

National Key R&D Program Project (2023YFC2809901); Technology Project of Hangzhou Benchuang Technology Company; Open Project of the Key Laboratory of Marine New Materials and Application Technology, Chinese Academy of Sciences

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摘要

采用联苯结构的生物质原料厚朴酚合成生物基环氧树脂，以柔性聚醚胺固化剂(D230、D400、D2000及T403)进行固化制备生物基环氧抗冲蚀涂层，探究聚醚胺分子量与官能度对厚朴酚环氧树脂力学性能、防腐性能以及抗冲蚀防护性能的影响，阐述厚朴酚环氧涂层抗冲蚀磨损机理。结果表明：D230固化的厚朴酚环氧涂层在3.5%(质量分数)NaCl溶液中浸泡15 d后仍具有较高的阻抗值(1.25×10¹¹Ω·cm²);以T403固化可获得高拉伸强度(26.59 MPa)、低摩擦系数(0.373)和磨损率[0.018 3 mm³/(N·m)]涂层；D2000固化的厚朴酚环氧涂层在抗冲蚀测试中表现出较低质量损失(244.74 mg)与体积损失(157 mm³)。在固/液/气三相流冲蚀作用下，D2000较长的柔性链段，赋予厚朴酚环氧涂层更好的弹性和柔韧性，降低了冲蚀介质的冲击作用，从而表现出优异的抗冲蚀性能。

关键词： 厚朴酚环氧树脂; 聚醚胺固化剂; 力学性能; 抗冲蚀防护性能

本文引用格式

李柱, 黄橹, 韩飞, 安然, 郭小平, 刘栓 . 厚朴酚环氧树脂涂层的制备及综合防护性能研究[J]. 材料保护, 2024 , 57(3) : 70 -79 . DOI: 10.16577/j.issn.1001-1560.2024.0057

Abstract

The biomass raw material magnolol with a biphenyl structure was used to synthesize bio-based epoxy resin, and flexible polyetheramine curing agents(D230, D400, D2000 and T403) were used to cure the bio-based epoxy anti-erosion coating. The effects of polyetheramine molecular weight and functionality on the mechanical properties, corrosion resistance and anti-erosion protection performance of magnolol epoxy resin were explored, and the anti-erosion mechanism of magnolol epoxy coatings was proposed. Results showed that the magnolol epoxy coating cured with D230 maintained a high impedance value(1.25×10¹¹ Ω·cm²) after 15 d of immersion in 3.5%(mass fraction) NaCl solution. The coating cured with T403 possessed a high tensile strength(26.59 MPa), low friction coefficient(0.373) and wear rate [0.018 3 mm³/(N·m)], while the magnolol epoxy coating cured with D2000 exhibited lower mass loss(244.74 mg) and volume loss(157 mm³) in the erosion test. Under the coupled erosion of solid/liquid/gas three-phase flow, the longer flexible segment of D2000 endowed the magnolol epoxy coating with better elasticity and flexibility, and therefore reduced the impact of the erosion medium, thus showing excellent anti-erosion performance.

Key words： thickened magnolol epoxy resin; polyether amine curing agents; mechanical properties; anti-erosion protection performance

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