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首页> 美国卫生研究院文献>Molecules >Horticultural Plant Residues as New Source for Lignocellulose Nanofibers Isolation: Application on the Recycling Paperboard Process
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Horticultural Plant Residues as New Source for Lignocellulose Nanofibers Isolation: Application on the Recycling Paperboard Process

机译：园艺植物残留作为木质纤维素纳米纤维的新来源隔离：在回收纸板过程中的应用

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Horticultural plant residues (tomato, pepper, and eggplant) were identified as new sources for lignocellulose nanofibers (LCNF). Cellulosic pulp was obtained from the different plant residues using an environmentally friendly process, energy-sustainable, simple, and with low-chemical reagent consumption. The chemical composition of the obtained pulps was analyzed in order to study its influence in the nanofibrillation process. Cellulosic fibers were subjected to two different pretreatments, mechanical and TEMPO(2,2,6,6-Tetramethyl-piperidin-1-oxyl)-mediated oxidation, followed by high-pressure homogenization to produce different lignocellulose nanofibers. Then, LCNF were deeply characterized in terms of nanofibrillation yield, cationic demand, carboxyl content, morphology, crystallinity, and thermal stability. The suitability of each raw material to produce lignocellulose nanofibers was analyzed from the point of view of each pretreatment. TEMPO-mediated oxidation was identified as a more effective pretreatment to produce LCNF, however, it produces a decrease in the thermal stability of the LCNF. The different LCNF were added as reinforcing agent on recycled paperboard and compared with the improving produced by the industrial mechanical beating. The analysis of the papersheets’ mechanical properties shows that the addition of LCNF as a reinforcing agent in the paperboard recycling process is a viable alternative to mechanical beating, achieving greater reinforcing effect and increasing the products’ life cycles.
机译：园艺植物残留物（番茄，胡椒和茄子）被确定为木质纤维素纳米纤维（LCNF）的新来源。使用环境友好的工艺，能量可持续，简单，低化学试剂消耗，从不同的植物残留物中获得纤维素纸浆。分析所得纸浆的化学成分以研究其对纳米纤化过程的影响。对纤维素纤维进行两种不同的预处理，机械和速度（2,2,6,6-四甲基 - 哌啶-1-氧基）介导的氧化，然后高压均质化以产生不同的木质纤维素纳米纤维。然后，在纳米纤化产率，阳离子需求，羧基含量，形态，结晶和热稳定性方面，LCNF深度表征。从每种预处理的观点来看，分析了每个原料生产木质纤维素纳米纤维的适用性。鉴定Tempo介导的氧化作为产生LCNF的更有效预处理，然而，它产生了LCNF的热稳定性的降低。将不同的LCNF作为再生纸板上的增强剂加入，并与工业机械搏动产生的改善相比。 Papersheets的机械性能分析表明，在纸板回收过程中添加LCNF作为加强剂是机械搏动的可行替代品，实现更大的增强效果并增加产品的生命周期。

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