Modern society is in great need of environmentally sustainable and low‐cost alternatives to some petroleum derived adhesives. To allow recycling and avoid pollution, adhesives for single use products including packaging are of particular interest. Potential candidates for such applications are the adhesive formulations of corn zein protein and tannic acid presented here. High strength adhesive bonding is found when the formulations are optimized with regard to composition, pH, and curing temperature. Bonding is tested on aluminum substrates using lap shear configurations. Adhesion strengths exceed the minimal bonding of zein‐only controls. Maximum adhesion for zein and tannic acid is as strong as commercial Super Glue when measured under similar conditions. The system forms nanometer and micrometer sized pores throughout the bulk adhesive. A low amount of tannic acid and neutral pH of the strongest adhesive make the corn zein–tannic acid system potentially appealing for cost efficient adhesives used in packaging, cosmetics, and other single use applications where biomedical grade purity is not required.

中文翻译：

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玉米蛋白和单宁酸的强力粘合剂

现代社会迫切需要一些石油衍生的胶粘剂在环境上可持续且低成本的替代品。为了允许回收利用并避免污染，特别关注用于一次性产品（包括包装）的粘合剂。这种应用的潜在候选者是此处提出的玉米玉米蛋白和单宁酸的粘合剂配方。当在组成，pH和固化温度方面优化配方时，可以发现高强度的粘合剂粘合。使用搭接剪切配置在铝基板上测试粘合。粘合强度超过仅玉米蛋白的对照的最小粘合力。在类似条件下测量时，玉米蛋白和单宁酸的最大粘附力与市售的超级胶水一样强。该系统在整个块状粘合剂中形成了纳米和微米大小的孔。