Lignin Based Functional Additives for Natural Rubber,ACS Sustainable Chemistry & Engineering

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Lignin Based Functional Additives for Natural Rubber
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-07-19 00:00:00 , DOI: 10.1021/acssuschemeng.8b02145
Davide Barana ₁ , Marco Orlandi ₂ , Luca Zoia ₂ , Luca Castellani ₃ , Thomas Hanel ₃ , Christiaan Bolck ₄ , Richard Gosselink ₄

Affiliation

In this work, the possibility to conveniently exploit lignin as a functional additive for natural rubber was pursued following two strategies. The first was based on the fractionation of lignin: extraction with organic solvents is suitable to produce lignin fractions with better defined structural features, molecular weight distributions, and physicochemical properties. The second approach was based on the chemical modification of lignin in the attempt to overcome its poor affinity with the rubber: esterification with anhydrides was selected to modify relatively large samples of lignin at laboratory scale. The effectiveness of different modifications of lignin as a drop-in replacement for carbon black was evaluated analyzing the tensile mechanical properties of model elastomeric compounds. In addition, the behavior of the modified lignins was rationalized through Hansen solubility parameters predicted with the group-contribution method.

中文翻译：

木质素基天然橡胶功能添加剂

在这项工作中，遵循以下两种策略寻求了便利地利用木质素作为天然橡胶的功能添加剂的可能性。第一种是基于木质素的分馏：用有机溶剂萃取适合生产具有更好定义的结构特征，分子量分布和理化性质的木质素馏分。第二种方法是基于木质素的化学改性，以试图克服木质素与橡胶的不良亲合力：选择用酸酐酯化以在实验室规模对较大的木质素样品进行改性。通过分析模型弹性体化合物的拉伸机械性能，评估了木质素作为炭黑的替代替代品的不同改性的有效性。此外，

更新日期：2018-07-19

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