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Preparation Thermal and Mechanical Characterization of UV-Cured Polymer Biocomposites with Lignin

机译：木质素紫外线固化聚合物生物复合材料的制备热学和机械表征

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The preparation and the thermal and mechanical characteristics of lignin-containing polymer biocomposites were studied. Bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BPA.GDA) was used as the main monomer, and butyl acrylate (BA), 2-ethylhexyl acrylate (EHA) or styrene (St) was used as the reactive diluent. Unmodified lignin (L) or lignin modified with methacryloyl chloride (L-M) was applied as an ecofriendly component. The influences of the lignin, its modification, and of the type of reactive diluent on the properties of the composites were investigated. In the biocomposites with unmodified lignin, the lignin mainly acted as a filler, and it seemed that interactions occurred between the hydroxyl groups of the lignin and the carbonyl groups of the acrylates. When methacrylated lignin was applied, it seemed to take part in the creation of a polymer network. When styrene was added as a reactive diluent, the biocomposites had a more homogeneous structure, and their thermal resistance was higher than those with acrylate monomers. The use of lignin and its methacrylic derivative as a component in polymer composites promotes sustainability in the plastics industry and can have a positive influence on environmental problems related to waste generation.
机译：研究了含木质素的聚合物生物复合材料的制备及热力学性能。主要成分为双酚A甘油酸酯（1甘油/苯酚）二丙烯酸酯（BPA.GDA），丙烯酸丁酯（BA），丙烯酸2-乙基己酯（EHA）或苯乙烯（St）作为反应性稀释剂。未改性的木质素（L）或经甲基丙烯酰氯改性的木质素（L-M）被用作环保成分。研究了木质素，其改性和反应性稀释剂类型对复合材料性能的影响。在具有未改性的木质素的生物复合物中，木质​​素主要充当填充剂，并且似乎在木质素的羟基和丙烯酸酯的羰基之间发生相互作用。当应用甲基丙烯酸化木质素时，它似乎参与了聚合物网络的创建。当添加苯乙烯作为反应性稀释剂时，生物复合材料的结构更加均一，并且其耐热性高于丙烯酸酯单体。木质素及其甲基丙烯酸衍生物作为聚合物复合材料的组分可促进塑料工业的可持续发展，并可对与废物产生相关的环境问题产生积极影响。

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