Advancing D3 Water Resistance in Polyvinyl Acetate Wood Adhesives through Environmentally Friendly Core-Shell Technology

IF 0.7 4区化学 Q4 CHEMISTRY, APPLIED

Russian Journal of Applied Chemistry Pub Date : 2026-06-25 DOI:10.1134/S1070427225601913

Peter B. Fahim, Michael A. Mossad, Kurls E. Anwer, M. Salah, Mohammed E. Azab

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Abstract

Polyvinyl acetate (PVAc) water-resistant adhesives are one of the most utilized in the wood industry and classified as D3 durability, exhibiting superior resistance to water and heat when compared to typical Polyvinyl acetate (PVAc) thermoplastic items. The synthesized adhesives by conventional methods were dependent on using inorganic salts, such as aluminum chloride and/or other specific metal via emulsion polymerization seeking to enhance the durability against water and heat. The present investigation aims to improve the durability of polyvinyl acetate (PVAc) to class D3 in accordance with European Standards related to wood adhesives “EN204-205”, through emulsion polymerization using core/shell technique. In this method, vinyl acetate was used as specific shell monomer with a mixture of Veova 10 and methyl acrylic acid in very limited ratio as core and ethylene glycol dimethacrylate (EGDMA) as cross-linker. The morphology was investigated by TEM microscopy and FTIR, thermogravimetric analysis was carried out to investigate the heat resistance characteristics. The results showed high water and heat resistance compliments the EN204-205 specifications.

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利用环保核壳技术提高聚醋酸乙烯木材胶粘剂D3耐水性

聚醋酸乙烯酯（PVAc）防水胶粘剂是木材工业中使用最多的胶粘剂之一，被归类为D3耐久性，与典型的聚醋酸乙烯酯（PVAc）热塑性塑料产品相比，具有优越的耐水性和耐热性。传统方法合成的粘合剂依赖于使用无机盐，如氯化铝和/或其他特定金属，通过乳液聚合寻求提高耐水和耐热性。本研究旨在通过采用核/壳技术的乳液聚合，将聚醋酸乙烯酯（PVAc）的耐久性提高到符合欧洲木材胶粘剂“EN204-205”标准的D3级。该方法以醋酸乙烯为特定壳单体，Veova 10与甲基丙烯酸以极有限比例的混合物为核心，乙二醇二甲基丙烯酸酯（EGDMA）为交联剂。采用透射电镜（TEM）和红外光谱（FTIR）对其形貌进行了研究，热重分析对其耐热性能进行了研究。结果表明，高耐水性和耐热性符合EN204-205规格。

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来源期刊

Russian Journal of Applied Chemistry 化学-应用化学

CiteScore

1.60

自引率

11.10%

发文量

审稿时长

2-4 weeks

期刊介绍： Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.