胶粘剂
复合材料
材料科学
复合数
纤维素
单宁酸
抗剪强度(土壤)
极限抗拉强度
纳米纤维
化学
图层(电子)
有机化学
环境科学
土壤科学
土壤水分
作者
Anqi Cai,Xinxin Zhang,Pei Cai,Zhenzeng Wu,Ajoy Kanti Mondal,Zuwu Tang
标识
DOI:10.1016/j.ijbiomac.2024.130770
摘要
Traditional adhesives easily release toxic gases during the preparation process or apply to wood composite products, which have adverse effects on the human body and the environment. Herein, an all-water-based high-performance wood adhesive is prepared using TEMPO-oxidized cellulose nanofiber (TOCNF), acrylamide (AM), and tannic acid (TA) through free radical polymerization. Different characteristics of the prepared composites, including morphology, injectability, and adhesion properties, have been investigated. Results showed that the TA/TOCNF/PAM composite has excellent injectability. The addition of TA can enhance the lap shear strength of the TA/TOCNF/PAM composites and with the increment of TA content, the lap shear strength gradually decreases. The formation of effective hydrogen bonds and Van der Waals interaction among the rich functional groups in the composite, lead to strong lap shear strength on different substrates. The composite with 5.0 g of AM, 5.0 g of the TOCNF suspension and 0.1 g TA possesses a high lap shear strength of 10.5 MPa on wood and 1.5 MPa on aluminium. Based on strong adhesion properties and excellent injectability, the TA/TOCNF/PAM composites have great potential in the furniture construction and building industries.
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