Green adhesives—Past, present, and future outlook

Moini, Nasrin; Khaghanipour, Maryam; Faridani, Firoozeh; Jahandideh, Arash

doi:10.1016/b978-0-323-99643-3.00006-1

Cited by 5 publications

(1 citation statement)

References 83 publications

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“…Adhesives are materials capable of adhering to solids and holding them together by resisting separation . They are widely used in several fields, including packaging, food, automotive, furniture, electronics, and other segments . These materials have been used for thousands of years and, initially, were prepared from natural resources, such as gums, proteins, natural rubber, and polysaccharides. , With advances in polymer synthesis, bioderived adhesives and sealants were replaced by synthetic polymers from fossil origin due to economic issues and their excellent mechanical properties .…”

Section: Introductionmentioning

confidence: 99%

Enhancing Water Resistance in Cationic Cellulose Nanofibril Adhesive with Natural Rubber Latex

Silva,

Nascimento,

Claro

et al. 2023

ACS Appl. Nano Mater.

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Adhesives prepared with renewable materials through environmentally friendly processing offer an appealing alternative to their petroleum-based counterparts. Herein, we evaluated the adhesive properties of cationic cellulose nanofibrils (CCNFs) under dry and wet conditions and after mixing with natural rubber latex (NRL). Uniaxial tensile tests of negatively charged substrates (paper, aluminum (Al), and polypropylene (PP)) bonded with CCNF show a maximum lap shear strength that approached the failure point of the substrates, indicating the formation of a robust adhesive joint. The wet adhesion of CCNFs was improved (53% for PP and 154% for Al) by simple aqueous mixing with NRL suspension. This straightforward methodology promotes controlled CCNF and NRL electrostatic assembly that reduces the swelling of nanofibrils by water and improves adhesive cohesion. Cryogenic transmission electron microscopy images of CCNF/NRL complexes reveal that NRL particles are coated by a fibrillar CCNF network, providing morphological evidence that cationic nanofibrils contribute to interfacial adhesion to the solid substrates, while NRL enhances water resistance. This study presents a simple method to control noncovalent interactions and prepare nanocellulosebased adhesives with good mechanical properties and improved water resistance that are suitable for developing adhesives for different fields.

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Section: Introductionmentioning

confidence: 99%

Enhancing Water Resistance in Cationic Cellulose Nanofibril Adhesive with Natural Rubber Latex

Silva,

Nascimento,

Claro

et al. 2023

ACS Appl. Nano Mater.

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Sustainable Snail‐Inspired Bio‐Based Adhesives with Ultra‐High Adhesion

Zhu,

Li,

Yan

et al. 2024

Adv Funct Materials

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Adhesives play a crucial role in modern everyday applications, prompting a growing environmental consciousness regarding their source, composition, utilization, and disposal. Sustainability concerns are frequently generated due to the complex or energy‐intensive manufacturing processes in the production of conventional water‐based adhesives. Here, a coacervate‐based snail‐inspired solvent‐free adhesive (SFA) is engineered by strategically modulating electrostatic interactions and molecular entanglement of two polypeptides under environmentally friendly conditions. The SFA has a record‐breaking adhesion strength of 28 MPa on ceramics, setting a new standard for bio‐based adhesives. The SFA demonstrates robust adhesion performance across a wide temperature ranging from −150 to 300 °C and allows for reusability without compromising adhesion properties. Moreover, it can be easily removed using a non‐toxic alkaline solution. The study presents a promising opportunity for developing high‐performance, reusable adhesives made from renewable materials suitable for industrial applications, relics repair, and even spacecraft processing.

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