AbstractAs an alternative to petroleum-based compatibilizing agents, we developed lignin derivatives for compatibilizing agents of carbon fiber-reinforced plastics that have thermoplasticity. In this study, alkyl chains were introduced into alkali lignin at various ratios to optimize the compatibility of the lignin derivatives with both polypropylene and carbon fiber. The interfacial shear strength between the two materials was improved from 8.2 to 17.2 MPa by mixing with the optimized lignin derivative. The value is comparable to that achieved with a typical petroleum-based compatibilizing agent (18.3 MPa).Lignin-derived compatibilizing agents were developed for polypropylene-based carbon fiber-reinforced prastics. Introduction of acyl groups to alkali lignin improved compatibility of the lignin to both carbon fiber and polypropylene while underivatized alkali lignin did not show compatibility. The interfacial shear strength between carbon fiber and polypropylene was significantly improved by addition of the lignin derivatives as compatibilizing agents.

中文翻译：

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用于碳纤维增强塑料与聚丙烯相容剂的烷基化碱木质素

摘要 作为石油基相容剂的替代品，我们开发了木质素衍生物，用于具有热塑性的碳纤维增强塑料的相容剂。在这项研究中，烷基链以不同的比例引入碱性木质素，以优化木质素衍生物与聚丙烯和碳纤维的相容性。通过与优化的木质素衍生物混合，两种材料之间的界面剪切强度从 8.2 MPa 提高到 17.2 MPa。该值与使用典型的石油基增容剂 (18.3 MPa) 达到的值相当。木质素衍生的增容剂是为聚丙烯基碳纤维增强塑料开发的。向碱性木质素中引入酰基提高了木质素与碳纤维和聚丙烯的相容性，而未衍生的碱性木质素没有表现出相容性。通过添加木质素衍生物作为增容剂，碳纤维和聚丙烯之间的界面剪切强度显着提高。