Preparation, Thermal, and Mechanical Characterization of UV-Cured Polymer Biocomposites with Lignin
Preparation, Thermal, and Mechanical Characterization of UV-Cured Polymer Biocomposites with Lignin
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DOI：
10.3390/polym12051159
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发表时间：
2020-05-01
期刊：
影响因子：
5
通讯作者：
Sevastyanova, Olena
中科院分区：
文献类型：
--
作者：
Goliszek, Marta;Podkoscielna, Beata;Sevastyanova, Olena
研究了含木质素高分子生物复合材料的制备及其热性能和力学性能。以双酚A甘油二丙烯酸酯（BPA.GDA）为主要单体，丙烯酸丁酯（BA）、丙烯酸2-乙基己酯（EHA）或苯乙烯（St）为活性稀释剂。将未改性的木质素（L）或用甲基丙烯酰氯改性的木质素（L-M）用作生态友好组分。研究了木质素及其改性、活性稀释剂种类对复合材料性能的影响。在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，并且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。当苯乙烯作为活性稀释剂加入时，生物复合材料具有更均匀的结构，其耐热性高于丙烯酸酯单体。使用木质素及其甲基丙烯酸衍生物作为聚合物复合材料中的一种组分，可促进塑料工业的可持续性，并对与废物产生有关的环境问题产生积极影响。
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.