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植物油基多元醇水性聚氨酯的制备及防污性能

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传统的高分子防污材料多来源于不可再生、不环保的石化资源,可再生、来源广、价格低廉的植物油基水性聚氨酯的研究多但开发难度相对高,未能广泛应用,因此开发具有高附加值的植物油基材料具有重要的现实意义.文中通过探索不同相对分子质量聚乙二醇单甲醚(MPEG)开环环氧大豆油的反应条件,在植物油脂肪酸侧链上偶联上不同链长的聚乙二醇(PEG)防污基团,通过红外光谱、凝胶渗透色谱及核磁共振谱等表征MPEG的开环效率及产物结构,确定了 MPEG开环环氧大豆油的最优开环条件,其羟基与环氧基团摩尔比为1.5∶1,滴完ESO继续反应15 min,所得植物油基防污多元醇羟值范围在77.17～120.20 mg KOH/g.然后将其引入聚氨酯结构中,较简单地制备了系列防污植物油基水性聚氨酯乳液.结果表明,该涂层对革兰氏阳性菌和阴性菌以及极易形成生物膜的细菌等均具有良好的防污性能,对生物质资源的高附加值利用具有重要意义.
Preparation and Anti Fouling Performance of Plant Oil-Based Polyol Waterborne Polyurethane
Traditional polymer anti fouling materials mostly come from petrochemical resources,which are non renewable and environmentally friendly.Research on renewable,widely sourced,and low-cost plant oils waterborne polyurethane has been extensive.There are many researches,but the development difficulty is relatively high,and it is not widely used.Therefore,the development of high-value plant oils materials has important practical significance.In this paper,polyethylene glycol monomethyl ether(MPEG)with different molecular weight was coupled to the side chains of plant oil fatty acids by epoxy ring opening reaction of soybean oil.The ring opening efficiency and structure reaction products were characterized by FT-IR,GPC,and 1H-NMR,and the hydroxyl value was determined by standard titration method.The optimal ring opening process for MPEG epoxidized soybean oil was determined,the mole ratio of hydroxyl to epoxy groups is 1.5∶1,and after dropping ESO,the reaction continues or 15 min.The hydroxyl value range of the obtained vegetable oil-based anti fouling polyol is 77.17～120.20 mg KOH/g.Series of anti-fouling waterborne polyurethane coatings synthesized from the obtained plant oil-based antifouling polyol were simply prepared by introducing polyurethane structure.The results show that the coating has good antifouling performance for Gram-positive and Gram-negative bacterial strains,as well as bacteria that are easy to form biofilms.The successful preparation of these polyols from plant oil is of great significance for the high-value utilization of biomass resources.

epoxy soybean oilpolyethylene glycol methyl etherplant oilanti fouling polyolsring openingwaterborne polyurethane

葛涛、刘若玲、罗楚江、游榕泽、路金林、常雪婷、尹衍升、张怡

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上海海事大学海洋科学与工程学院,上海 201306

广州航海学院轮机工程学院海洋严酷环境使役材料与运维装备广东省高校重点实验室,广东广州 510725

环氧大豆油 聚乙二醇甲醚 植物油基 防污多元醇 开环反应 水性聚氨酯

国家自然科学基金青年科学基金资助项目国家自然科学基金青年科学基金资助项目国家自然科学基金青年科学基金资助项目广州市基础与应用基础项目

520010815207109152274296202201011525

2024

10.16865/j.cnki.1000-7555.2024.0079

高分子材料科学与工程
中国石油化工股份有限公司科技开发部 国家自然科学基金委员会化学科学部 高分子材料工程国家重点实验室 四川大学高分子研究所

高分子材料科学与工程

CSTPCD北大核心
影响因子：0.563
ISSN：1000-7555
年,卷(期)：2024.40(5)