Abstract End-of-life tires are known to have negative economic and environmental impacts due to their difficult disposal and recycling. Thus, the use of recycled waste tire rubber particles mixed with an elastomeric polyurethane resin dyed in the mass has emerged as a potentially sustainable solution to this environmental issue. Indeed, they can be used for the manufacture of damping tiles for playgrounds and sports fields, which limit the risks associated with falling. This is a product that interests town halls, businesses and individuals. In this study, the recycled waste tire rubber particles and their fibers byproducts are introduced into a new binder based on commercial polyurethane adhesive (Vinyprene P2006) blended with a polyisocyanate hardener to elaborate a low-cost composite. Also, halogenation is proposed as a surface modification to improve the interfacial adhesion between the binder and the particles. The samples were produced with two densities and characterized using SEM and FTIR, as well as bonding, compression, relaxation and residual deformation. The results show that the chemical treatment increased the rubber surface roughness which improved the binder ability, and on the other hand, the rubber composites exhibit higher compression properties than the rubber mixed the fiber by product composites.

中文翻译：

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基于回收轮胎碎片的聚氨酯粘合剂：生产和表征

摘要 报废轮胎因其难以处理和回收而对经济和环境产生负面影响。因此，将回收的废轮胎橡胶颗粒与染色的弹性聚氨酯树脂混合使用已成为解决这一环境问题的潜在可持续解决方案。事实上，它们可用于制造游乐场和运动场的阻尼砖，从而限制与跌落相关的风险。这是一种让市政厅、企业和个人感兴趣的产品。在这项研究中，将回收的废轮胎橡胶颗粒及其纤维副产品引入基于商业聚氨酯粘合剂 (Vinyprene P2006) 与多异氰酸酯硬化剂混合的新型粘合剂中，以制作低成本复合材料。还，卤化被提议作为一种表面改性，以提高粘合剂和颗粒之间的界面粘合力。样品以两种密度生产，并使用 SEM 和 FTIR 以及结合、压缩、松弛和残余变形进行表征。结果表明，化学处理增加了橡胶表面粗糙度，提高了粘结能力，另一方面，橡胶复合材料表现出比橡胶混合纤维副产品复合材料更高的压缩性能。