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Confined evaporation-induced self-assembly of colloidal lignin particles for anisotropic adhesion
Colloid and Interface Science Communications ( IF 4.5 ) Pub Date : 2020-08-21 , DOI: 10.1016/j.colcom.2020.100306
Stefan Beisl , Johannes Adamcyk , Anton Friedl , Hirotaka Ejima

Colloidal lignin particles out of lignocellulosic biorefineries have gained interest due to their improved properties and wide application range compared to standard lignin. In this work, an application as green adhesive was investigated. Solely a suspension of aqueous colloidal lignin particles was used to achieve anisotropic adhesion between two glass slides. The self-assembly of the colloidal lignin particles into macroscopic structures during drying lead to shear strength 8-times higher the tensile strength. Predefined lignin particles are crucial for the adhesion whereas dissolved lignin leads to no practicable adhesion. The high anisotropy of the adhesion and the fact that solely pure lignin is necessary opens new application and research fields and will propagate the application of colloidal lignin particles even more.



中文翻译:

蒸发诱导的胶体木质素颗粒的自组装,用于各向异性粘附

与标准木质素相比,木质纤维素生物精炼厂中的胶体木质素颗粒因其改进的性能和广泛的应用范围而受到关注。在这项工作中,研究了作为绿色粘合剂的应用。仅使用水性胶体木质素颗粒的悬浮液来实现两个载玻片之间的各向异性粘附。胶体木质素颗粒在干燥过程中自组装成宏观结构会导致抗张强度高8倍。预定义的木质素颗粒对于附着力至关重要,而溶解的木质素不会导致实际的附着力。附着力的高各向异性以及仅需要纯木质素的事实就开辟了新的应用和研究领域,并将进一步推广胶体木质素颗粒的应用。

更新日期:2020-08-21
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