Barrera Torres G, Gutierrez Aguilar Carlos M, R Lozada Elizabeth, Tabares Montoya Manuel J, Ángel Álvarez Beatriz E, Sánchez Juan C, Jaramillo Carvalho Jaime A, Santos Renivaldo J
Faculty of Arts and Humanities, Instituto Tecnológico Metropolitano (ITM), Medellín 050036, Colombia.
School of Engineering, Universidad Pontificia Bolivariana (UPB), Medellín 050031, Colombia.
Polymers (Basel). 2025 Jan 14;17(2):190. doi: 10.3390/polym17020190.
The substantial waste generated during the processing of hides and skins as well as at other stages of manufacturing is a recurring issue in the leather industry that this article attempts to address. To investigate the mechanical and thermal characteristics of the resultant composites, this study suggests using leather waste from the bovine leather industry, analyzes the tanning process, and assesses the viability of mixing this waste with natural rubber (TSR-20). Without the inclusion of leather waste, the resulting composites had exceptional tensile strength, surpassing 100% of rubber's strength. The effective interaction of the recycled leather particles with the natural rubber matrix was evidenced using the Lorentz-Park equation. This better performance points to a competitive relationship between rubber and leather waste. The samples' density was 10% greater than that of polybutadiene elastomers and 10% greater than that of natural leather, while the hardness was comparable to that of PVC, which is frequently utilized in the design of general-purpose soles. This suggests that waste from the leather industry can be efficiently utilized in sustainable applications, particularly in the production of leather goods and shoes, helping to valorize waste that is typically discarded. Furthermore, by encouraging the use of recycled resources in the creation of new compounds, this plan provides the rubber sector with a sustainable option. To optimize this proposal, perhaps will be necessary to identify different vulcanization systems to improve the physical mechanical properties and other uses derived from the optimizations realized. This composite can be applied in the fashion industry in order to develop new trends around the application of waste and residues for a natural design line. Through the research process, it was possible to integrate the residues into the natural rubber matrix, as evidenced in the characterization process.
皮革加工过程以及制造的其他阶段产生的大量废料是皮革行业中反复出现的问题，本文试图解决这一问题。为了研究所得复合材料的机械和热特性，本研究建议使用牛皮革行业的皮革废料，分析鞣制过程，并评估将这种废料与天然橡胶（TSR - 20）混合的可行性。在不加入皮革废料的情况下，所得复合材料具有出色的拉伸强度，超过橡胶强度的100%。使用洛伦兹 - 帕克方程证明了回收皮革颗粒与天然橡胶基体之间的有效相互作用。这种更好的性能表明橡胶和皮革废料之间存在竞争关系。样品的密度比聚丁二烯弹性体高10%，比天然皮革高10%，而硬度与常用于通用鞋底设计的PVC相当。这表明皮革行业的废料可以在可持续应用中得到有效利用，特别是在皮革制品和鞋子的生产中，有助于使通常被丢弃的废料增值。此外，通过鼓励在新化合物的制造中使用回收资源，该计划为橡胶行业提供了一个可持续的选择。为了优化这一建议，可能有必要确定不同的硫化体系，以改善物理机械性能以及通过实现的优化衍生出的其他用途。这种复合材料可应用于时尚产业，以便围绕将废料和残渣应用于自然设计系列开发新趋势。通过研究过程，可以将残渣整合到天然橡胶基体中，这在表征过程中得到了证明。
