PDF(Pubmed)
Abstract：
In this study, sodium alginate (SA) was oxidized with potassium periodate to produce an alginate-based tanning agent. Using OSA as a biodegradable tanning agent and a nano-hydroxyapatite (nano-HAp) low concentration suspension to give flame retardancy to leather, eco-design concepts were applied to establish a chrome-, aldehyde-, and phenol-free tanning process. Micro-DSC, 1H unilateral nuclear magnetic resonance (NMR), attenuated total reflection mode Fourier transform infrared spectroscopy (FTIR-ATR), and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) were used to investigate the complex matrix collagen-OSA-nano-HAp. Micro-differential scanning calorimetry (micro-DSC) was used to assess OSA\'s ability to interact with collagen and stabilize the collagen-OSA matrix, while 1H unilateral (NMR) was used to investigate the aqueous environment and its limitations around collagen molecules caused by their association with OSA and nano-HAp. Industrial standard tests were used to assess the mechanical properties and fire resistance of the new leather prototype. The findings reported here indicate that both OSA and nano-HAp are suitable alternatives for cleaner tanning technologies and more sustainable leather.
摘要：
在这项研究中,海藻酸钠（SA）用高碘酸钾氧化以产生基于海藻酸盐的鞣剂。使用OSA作为可生物降解的鞣剂和纳米羟基磷灰石（nano-HAp）低浓度悬浮液赋予皮革阻燃性，生态设计理念被应用于建立铬，醛-，无酚鞣制工艺。Micro-DSC,1H单侧核磁共振（NMR），衰减全反射模式傅里叶变换红外光谱(FTIR-ATR),采用扫描电镜和能量色散X射线能谱（SEM-EDS）对复合基质胶原-OSA-纳米HAp进行了研究。微差示扫描量热法(micro-DSC)用于评估OSA与胶原蛋白相互作用和稳定胶原蛋白-OSA基质的能力。而1H单侧（NMR）用于研究水性环境及其与OSA和纳米HAp的缔合引起的胶原分子周围的局限性。使用工业标准测试来评估新皮革原型的机械性能和耐火性。本文报道的研究结果表明，OSA和nano-HAp都是更清洁的鞣制技术和更可持续的皮革的合适替代品。
