Natural polyhydroxy resins in surface coatings: a review

IF 2.3 4区材料科学 Q2 Chemistry

Journal of Coatings Technology and Research Pub Date : 2022-03-22 DOI:10.1007/s11998-021-00604-8

Sampson Kofi Kyei, William Iheanyi Eke, Godfred Darko, Onyewuchi Akaranta

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引用次数: 8

Abstract

The depletion of fossil fuels, high environmental pollution due to the release of toxic organic compounds, and high cost are some of the challenges regarding the reliance on petroleum-based resins. Natural polyhydroxy resins (from cashew nutshell liquid, castor oil, tannins, among others) are readily available, eco-friendly, low cost, and biodegradable, and offer enhanced properties when deployed on surface coatings. Accordingly, more attention has been paid to utilizing natural polyhydroxy compounds and bio-based polyurethane resins to replace synthetic resins in the last few decades. This review presents state-of-the-art natural polyhydroxy resins and their application as precursors in surface coatings. Bio-based resins from cashew nutshell liquid (cardanol), castor oil, and tannins employed as precursors in bio-based polyurethane coatings exhibit enhanced/excellent impact strength, adhesion, flexibility, water, and chemical resistance, to mention a few. Moreover, natural resins and eco-friendly polyurethane coatings, including their methods of modification, are also reviewed. This review article helps to promote natural polyhydroxy resins as sustainable and promising green materials for the coatings industry.

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天然多羟基树脂在表面涂料中的应用综述

化石燃料的枯竭，有毒有机化合物的释放造成的严重环境污染，以及高成本是依赖石油基树脂的一些挑战。天然多羟基树脂(来自腰果果液、蓖麻油、单宁等)容易获得，环保、低成本、可生物降解，并且在表面涂层上使用时具有增强的性能。因此，利用天然多羟基化合物和生物基聚氨酯树脂来代替合成树脂在近几十年来受到越来越多的关注。本文综述了目前最先进的天然多羟基树脂及其在表面涂料中的应用。从腰果果液体(腰果酚)、蓖麻油和单宁中提取的生物基树脂作为生物基聚氨酯涂料的前体，表现出增强/优异的抗冲击强度、附着力、柔韧性、耐水性和耐化学性等。此外，还对天然树脂和环保聚氨酯涂料及其改性方法进行了综述。本文综述了天然多羟基树脂作为可持续发展的绿色涂料材料的发展前景。

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来源期刊

Journal of Coatings Technology and Research CHEMISTRY, APPLIED-MATERIALS SCIENCE, COATINGS & FILMS

CiteScore

4.40

自引率

8.70%

发文量

期刊介绍： Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.