The effect of synergistic/inhibitory mechanism of terephthalic acid and glycerol on the puncture, tearing, and degradation properties of PBSeT copolyesters,Advanced Composites and Hybrid Materials

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The effect of synergistic/inhibitory mechanism of terephthalic acid and glycerol on the puncture, tearing, and degradation properties of PBSeT copolyesters
Advanced Composites and Hybrid Materials ( IF 23.2 ) Pub Date : 2022-01-28 , DOI: 10.1007/s42114-021-00405-y
Zhimao Li ₁ , Yingchun Li ₁ , Haiyu Lei ₁ , Yu Feng ₁ , Wensheng Wang ₁ , Jie Li ₁ , Tao Ding ₂ , Bingnan Yuan ₃

Affiliation

To explore the effect of terephthalic acid/glycerol interaction on the performance of poly (butanediol sebacate—butanediol terephthalate) (PBSeT) copolyesters, the puncture, tearing, and degradation properties of PBSeT copolyesters with different terephthalic acid content and glycerol content 0 ~ 0.1 mol were investigated. The results showed that the puncture and tear strength of the copolyesters were improved with the content of terephthalic acid but first rose and then declined with the increase of glycerol content, which glycerol and terephthalic acid exhibited synergistic mechanism in puncture and tearing performance within a certain range. Compared with LDPE, the optimal puncture and tearing strength of the copolyesters were 1.82 and 2.49 times, respectively. As far as hydrolysis was concerned, a greater weight loss was observed under alkaline conditions than acidic conditions. Moreover, higher terephthalic acid and glycerol content exhibited a synergistic effect to hinder the hydrolysis under alkaline conditions. Surprisingly, the addition of a certain content of glycerol promoted the enzymatic degradation of all copolyesters except for the 0.04 mol content, and the weight loss of enzyme degradation reached the maximum at 0.06 mol content; however, the high terephthalic acid content made the enzyme degradation performance deteriorates. Therefore, inhibitory mechanism in enzymatic degradation was showed by terephthalic acid and glycerol. To sum up, this suggested a potential utility and application prospect in the field of agriculture, packaging, and engineering materials.

Graphical abstract

Synergistic/inhibitory mechanism of terephthalic acid and glycerol on the puncture, tearing, and degradation properties of PBSeT copolyesters.

中文翻译：

对苯二甲酸和甘油的协同/抑制机制对PBSeT共聚酯穿刺、撕裂和降解性能的影响

探讨对苯二甲酸/甘油相互作用对聚（癸二酸丁二醇酯-对苯二甲酸丁二醇酯）（PBSeT）共聚酯性能的影响，对不同对苯二甲酸含量和甘油含量0~0.1 mol的PBSeT共聚酯的穿刺、撕裂和降解性能进行了研究。进行了调查。结果表明,随着对苯二甲酸含量的增加,共聚聚酯的刺破强度随着对苯二甲酸含量的增加而提高,但随着甘油含量的增加呈先上升后下降的趋势,其中甘油和对苯二甲酸在一定范围内的刺破和撕裂性能表现出协同机制。 . 与LDPE相比，共聚酯的最佳穿刺强度和撕裂强度分别为1.82倍和2.49倍。就水解而言，在碱性条件下比在酸性条件下观察到更大的重量损失。此外，较高的对苯二甲酸和甘油含量表现出协同作用，以阻碍碱性条件下的水解。令人惊奇的是，一定含量甘油的加入促进了除0.04mol含量外的所有共聚酯的酶降解，酶降解失重在0.06mol含量达到最大值；然而，高对苯二甲酸含量使酶降解性能变差。因此，对苯二甲酸和甘油显示了酶降解的抑制机制。综上所述，这表明在农业、包装和工程材料领域具有潜在的实用性和应用前景。较高的对苯二甲酸和甘油含量表现出协同作用，在碱性条件下阻碍水解。令人惊奇的是，一定含量甘油的加入促进了除0.04mol含量外的所有共聚酯的酶降解，酶降解失重在0.06mol含量达到最大值；然而，高对苯二甲酸含量使酶降解性能变差。因此，对苯二甲酸和甘油显示了酶降解的抑制机制。综上所述，这表明在农业、包装和工程材料领域具有潜在的实用性和应用前景。较高的对苯二甲酸和甘油含量表现出协同作用，在碱性条件下阻碍水解。令人惊奇的是，一定含量甘油的加入促进了除0.04mol含量外的所有共聚酯的酶降解，酶降解失重在0.06mol含量达到最大值；然而，高对苯二甲酸含量使酶降解性能变差。因此，对苯二甲酸和甘油显示了酶降解的抑制机制。综上所述，这表明在农业、包装和工程材料领域具有潜在的实用性和应用前景。添加一定含量的甘油促进了除0.04 mol含量外的所有共聚酯的酶降解，酶降解失重在0.06 mol含量达到最大值；然而，高对苯二甲酸含量使酶降解性能变差。因此，对苯二甲酸和甘油显示了酶降解的抑制机制。综上所述，这表明在农业、包装和工程材料领域具有潜在的实用性和应用前景。添加一定含量的甘油促进了除0.04 mol含量外的所有共聚酯的酶降解，酶降解失重在0.06 mol含量达到最大值；然而，高对苯二甲酸含量使酶降解性能变差。因此，对苯二甲酸和甘油显示了酶降解的抑制机制。综上所述，这表明在农业、包装和工程材料领域具有潜在的实用性和应用前景。对苯二甲酸和甘油显示了酶降解的抑制机制。综上所述，这表明在农业、包装和工程材料领域具有潜在的实用性和应用前景。对苯二甲酸和甘油显示了酶降解的抑制机制。综上所述，这表明在农业、包装和工程材料领域具有潜在的实用性和应用前景。