Goliszek Marta, Podkościelna Beata, Klepka Tomasz, Sevastyanova Olena
Department of Polymer Chemistry, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 5, 20-031 Lublin, Poland.
Analytical Laboratory, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 5, 20-031 Lublin, Poland.
Polymers (Basel). 2020 May 19;12(5):1159. doi: 10.3390/polym12051159.
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.
研究了含木质素的聚合物生物复合材料的制备及其热性能和力学性能。双酚A甘油酸酯（1甘油/苯酚）二丙烯酸酯（BPA.GDA）用作主要单体，丙烯酸丁酯（BA）、丙烯酸2-乙基己酯（EHA）或苯乙烯（St）用作反应性稀释剂。未改性木质素（L）或用甲基丙烯酰氯改性的木质素（L-M）用作环保组分。研究了木质素、其改性以及反应性稀释剂类型对复合材料性能的影响。在含有未改性木质素的生物复合材料中，木质素主要起填料的作用，木质素的羟基与丙烯酸酯的羰基之间似乎发生了相互作用。当使用甲基丙烯酸化木质素时，它似乎参与了聚合物网络的形成。当添加苯乙烯作为反应性稀释剂时，生物复合材料具有更均匀的结构，并且它们的耐热性高于含有丙烯酸酯单体的复合材料。使用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性，并可对与废物产生相关的环境问题产生积极影响。
