Glycolysis reactions of waste polyethylene terephthalate (PET) flakes obtained from post-consumer water bottles were carried out at 220–250 °C using diethylene glycol, dipropylene glycol and triethylene glycol, and molar ratios of PET/glycol in the glycolysis reactions were chosen to be 1/3. The obtained glycolysis products were used in the synthesis of medium-oil acrylic-modified water-reducible alkyd resins. Acrylic modification was carried out using methacrylic acid–maleic acid copolymer synthesized in our laboratory. The structure of the acrylic copolymer was investigated with FTIR analysis. Films of the modified alkyd resins were prepared and their physical and chemical surface coating properties were investigated. When surface coating test results were evaluated, it was observed that waste PET had no adverse effect on these properties of acrylic-modified water-reducible alkyd resins. Then, two water-based paints were prepared using PET-based acrylic-modified water-reducible alkyd resin and reference acrylic-modified water-reducible alkyd resin as binder. Wet paint properties and physical/chemical dry film properties of paints were determined. When the physical surface coating test results were evaluated, no difference was observed between the properties of both paints. If we evaluate the results of chemical surface coating properties, the hot water and alkali resistance of waste PET-based paint was considerably higher than the reference resin.

从消费后的水瓶中获取的废聚对苯二甲酸乙二醇酯（PET）薄片的糖酵解反应是在220–250°C下使用二甘醇，二丙二醇和三甘醇进行的，糖酵解反应中选择的PET /乙二醇摩尔比为是1/3。获得的糖酵解产物用于合成中油丙烯酸改性的水可还原的醇酸树脂。丙烯酸改性是使用我们实验室合成的甲基丙烯酸-马来酸共聚物进行的。用FTIR分析研究丙烯酸共聚物的结构。制备了改性醇酸树脂薄膜，并研究了其物理和化学表面涂层性能。评估表面涂层测试结果后，观察到废PET对丙烯酸改性的水可还原的醇酸树脂的这些性能没有不利影响。然后，使用PET基丙烯酸改性的水可稀释的醇酸树脂和参考丙烯酸改性的水可稀释的醇酸树脂作为粘合剂制备两种水性涂料。测定了涂料的湿涂料性能和物理/化学干膜性能。当评估物理表面涂层测试结果时，两种涂料的性能之间均未观察到差异。如果我们评估化学表面涂层性能的结果，则废PET基涂料的耐热水和耐碱性要比参考树脂高得多。使用PET基丙烯酸改性的减水醇酸树脂和参考丙烯酸改性的减水醇酸树脂作为粘合剂，制备了两种水性涂料。测定了涂料的湿涂料性能和物理/化学干膜性能。当评估物理表面涂层测试结果时，两种涂料的性能之间均未观察到差异。如果我们评估化学表面涂层性能的结果，则废PET基涂料的耐热水和耐碱性明显高于参考树脂。使用PET基丙烯酸改性的减水醇酸树脂和参考丙烯酸改性的减水醇酸树脂作为粘合剂制备了两种水性涂料。测定了涂料的湿涂料性能和物理/化学干膜性能。当评估物理表面涂层测试结果时，两种涂料的性能之间没有观察到差异。如果我们评估化学表面涂层性能的结果，则废PET基涂料的耐热水和耐碱性明显高于参考树脂。