A soy protein-based adhesive with improved mechanical and electromagnetic shielding properties by employment of core@double-shell BT@PDA@PANI fillers

电磁屏蔽 胶粘剂 材料科学 复合材料 聚苯胺 电磁干扰 胶水 聚合物 电磁干扰 电信 计算机科学 聚合 图层(电子)
作者
Yanqiang Wei,Shuaicheng Jiang,Jiongjiong Li,John Tosin Aladejana,Tiantian Zhang,Xiaona Li,Youming Dong,Jianzhang Li
出处
期刊:Chemical Engineering Journal [Elsevier]
卷期号:458: 141512-141512 被引量:23
标识
DOI:10.1016/j.cej.2023.141512
摘要

Resolving indoor electromagnetic interference (EMI) and radiation pollution caused by electromagnetic waves have become paramount. Plywood is broadly used in interior decoration and give them EMI shielding function will be significant for addressing these issues. Herein, inspired by the mussel underwater bonding strategy and oyster, polydopamine (PDA) graft transition layer was introduced between inorganic BaTiO3 (BT) core layer and organic polyaniline (PANI) shell layer to construct controllable [email protected] [email protected]@PANI nanoparticles. The epoxide polymer and aldehyde-decorated carbon dots (CDs) were used as crosslinkers to form the covalent bonds and dynamic covalent bonds within the adhesive network. The [email protected] nanoparticles were used as a reinforcing element and crosslinker to construct an organic–inorganic hybrid protein adhesive. This as-prepared protein adhesive exhibits remarkable improvements in wet shear strength (1.16 MPa), dry shear strength (1.97 MPa), and water resistance. Encouragingly, the plywood with in-situ formulated adhesives is an absorption dominated EMI shielding material and reveals an excellent EMI SET of 38.04 dB EMI in the X-band, significantly outperforming most of the reported synthetic materials. This outstanding performance is attributable to its superior conductivity and unique hierarchical structure of plywood. Therefore, this study offers a facile, environmentally-friendly, and economically feasible strategy for preparing high-performance adhesives to address indoor EMI problems.
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