Abstract：
With the increasing use of pressure-sensitive adhesives (PSAs) in various industries, there is a need for greater sustainability, particularly in developing polymer materials from renewable resources, as well as the reuse and recycling of materials to reduce environmental impact, reduce waste, or extend their life. Here, we outlined the required properties of PSAs which are governed by the molecular parameters (molecular weights, dispersities, molecular weight between entanglement, molecular weight between cross-links and gel content) of polymer materials which subsequently define the physical properties (storage and loss moduli, glass transition temperature) that are required for good performance in peel, tack and shear tests. The sustainable approach discussed here is the development of degradable polymer materials featuring selectively degradable linkages in the backbone. This provides a viable alternative for the design of PSAs that could overcome the \'stickies\' problem and make the recycling of glass and cardboard more efficient.
摘要：
随着压敏粘合剂（PSA）在各个行业中的使用越来越多，需要更大的可持续性，特别是在从可再生资源中开发聚合物材料方面，以及材料的再利用和回收利用，以减少对环境的影响，减少浪费,或者延长他们的寿命。这里,我们概述了由分子参数(分子量，分散性,分子之间的纠缠，交联之间的分子量和凝胶含量）的聚合物材料，随后定义了物理性质（储存和损耗模量，玻璃化转变温度)是良好剥离性能所需的，粘性和剪切试验。这里讨论的可持续方法是可降解聚合物材料的开发,其在主链中具有选择性可降解的键。这为PSA的设计提供了可行的替代方案，可以克服“胶粘物”问题，并使玻璃和纸板的回收更有效。
