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用双甲环氧树脂涂层的水下混凝土的界面结合特性
Sungwon Kim1, Jin-Hak Yi1, Hyemin Hong1
1Ocean Space Development and Energy Research Department, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea.
Polymers
|November 14, 2023
概括
海洋混凝土涂层可以抵抗降解. 基于双甲 (BPA) 的涂料,特别是添加剂的涂料,在真正的海洋环境中表现不同,有些涂料随着时间的推移而得到改善. 在海洋条件下,涂层厚度显著增加.
科学领域:
- 材料科学 材料科学 材料科学
- 腐蚀工程 腐蚀工程
- 土木工程 土木工程是指土木工程.
背景情况:
- 环氧涂层保护混凝土结构,特别是在恶劣的海洋环境中.
- 了解接口特性对于涂层的耐用性至关重要.
- 诸如环氧类型,应用方法和环境暴露等因素会影响性能.
研究的目的:
- 在各种条件下研究环氧涂层混凝土的界面特性.
- 评估环氧类型,涂层设备和暴露环境/暴露期对涂层性能的影响.
- 提供对影响海洋混凝土涂层耐用性的因素的见解.
主要方法:
- 环氧涂层混凝土样本暴露于真正的海洋 (RS) 和自来水 (TW) 环境中.
- 测量涂层厚度和拉开粘合强度.
- 环氧类型的分析:双甲 (BPA) (E1),BPA与粉 (E2) 和BPA与克雷西尔糖乙烯 (E3).
- 涂层方法的比较,包括传统的滚筒 (D1).
主要成果:
- 在RS条件下,涂层厚度明显增加 (34%至158%),与TW相比.
- 平均结合强度以RS表示:E1 (1.26MPa),E2 (1.93MPa),E3 (1.92MPa). 它们的结合强度是:E1 (1.26MPa),E2 (1.93MPa),E3 (1.92MPa).
- 涂层方法对厚度和强度的影响最小.
- 在RS中,E3显示在7-91天内增加了键强度 (2.71 MPa);E2保持稳定 (~1.82 MPa).
结论:
- 海洋环境显著增加了涂层厚度.
- 环氧类型E3证明了随着时间的推移在海洋条件下增强结合强度的潜力.
- 涂层应用方法对性能的影响有限.
- 这些发现有助于选择和应用海洋混凝土涂层.
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