Abstract
AbstractAcrylic resin, as a common coating and adhesive, possesses excellent heat resistance, weather resistance, and is inexpensive, making it widely used in industries related to automotive, construction, electronics, fabrics, and other sectors essential to our daily life. Traditional acrylic resin not only pollutes the environment but also poses certain health risks. Therefore, we studied the synthesis of a low‐temperature self‐crosslinking acrylic emulsions were synthesized by free radical solution polymerization using methyl methacrylate (MMA), butyl acrylate (BA), acrylic acid (AA), diacetone acrylamide (DAAM), hydroxypropyl acrylate (HPA), epoxy resin (E‐51) as the monomers, vinyltriethoxysilane (A‐51) as the coupling agent, and adipic dihydrazide (ADH) as the cross‐linking agent. This water‐based acrylic resin undergoes a crosslinking reaction between the carbonyl group of DAAM and the hydrazide group of ADH, substantially improved the drying speed and adhesion compared to unmodified versions, and also improved the thermal stability. The contact angle of the film increased from 72.8° to 86.9° with the increase of the degree of cross‐linking, and the mechanical properties were improved by 60%. This study provides a suitable formulation for preparing water‐based acrylic resins with superior performance.
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