Influence of biobased polyol type on the properties of polyurethane hotmelt adhesives for footwear joints

IF 1.68 Q2 Dentistry

Applied Adhesion Science Pub Date : 2021-11-19 DOI:10.1186/s40563-021-00138-7

M. P. Carbonell-Blasco, M. A. Pérez-Limiñana, C. Ruzafa-Silvestre, F. Arán-Ais, E. Orgilés-Calpena

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Abstract

Polyurethanes, one of the most used polymers worldwide, are strongly dependent of non-renewable fossil resources. Thus, boosting the production of new polyurethanes based on more sustainable raw materials is crucial to move towards the footwear industry decarbonisation. The aim of this study is to synthesise and characterise reactive hotmelt polyurethanes from biomass and CO₂-based polyols as bioadhesives for the footwear industry. The influence of biobased polyols on the polyurethane structure, and therefore, on their final properties was analysed by different experimental techniques such us Fourier transform infrared spectroscopy (FTIR), Differential scanning calorimetry (DSC), Thermogravimetric analysis (TGA), Melting viscosity, Softening temperature and T-peel strength test, in order to assess their viability for the upper to sole bonding process. The results obtained indicated that the incorporation of different amounts of the biobased polyols produces changes in the structure and final performance of the polyurethanes. Therefore, adhesion test carried out by the T-peel test 72 h after the upper -to- sole bonding of the sustainable adhesives show high final adhesion values. These sustainable raw materials provide polyurethane adhesives with additional beneficial non-toxicity and sustainable characteristics, without harming their properties during their useful life.

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生物基多元醇类型对鞋类关节用聚氨酯热熔胶性能的影响

聚氨酯是全球使用最多的聚合物之一，但却严重依赖不可再生的化石资源。因此，促进基于更可持续原材料的新型聚氨酯的生产，对于推动制鞋业去碳化至关重要。本研究的目的是合成和表征以生物质和二氧化碳为基础的多元醇为原料的反应型热熔聚氨酯，并将其作为制鞋业的生物粘合剂。通过不同的实验技术，如傅立叶变换红外光谱（FTIR）、差示扫描量热仪（DSC）、热重分析（TGA）、熔融粘度、软化温度和 T 型剥离强度测试，分析了生物基多元醇对聚氨酯结构的影响，以及对其最终特性的影响，以评估其在鞋面与鞋底粘合过程中的可行性。结果表明，加入不同量的生物基多元醇会改变聚氨酯的结构和最终性能。因此，在鞋面与鞋底粘合 72 小时后，通过 T 型剥离试验进行的粘合力测试表明，可持续粘合剂的最终粘合力值很高。这些可持续原材料为聚氨酯粘合剂提供了更多有益的无毒性和可持续特性，在其使用寿命期间不会损害其性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Adhesion Science Dentistry-Dentistry (miscellaneous)

自引率

0.00%

发文量

审稿时长

13 weeks

期刊介绍： Applied Adhesion Science focuses on practical applications of adhesives, with special emphasis in fields such as oil industry, aerospace and biomedicine. Topics related to the phenomena of adhesion and the application of adhesive materials are welcome, especially in biomedical areas such as adhesive dentistry. Both theoretical and experimental works are considered for publication. Applied Adhesion Science is a peer-reviewed open access journal published under the SpringerOpen brand. The journal''s open access policy offers a fast publication workflow whilst maintaining rigorous peer review process.