Old Corrugated Container (OCC) Cardboard Material: An Alternative Source for Obtaining Microfibrillated Cellulose

ABSTRACT

Nowadays, there is a growing interest in lignocellulosic nanoscale materials produced from alternative recycled sources because of their attractive physical, chemical, and mechanical properties, as well as their ecological contribution. In this work, MFC preparation through mechanical fibrillation using lignocellulosic fibers from OCC cardboard was investigated. Also, the effect of alkaline pulping and bleaching treatments was also evaluated in a comparative study. The fibers’ and microfibers’ morphology were determined by light microscopy, SEM, and TEM. The structural and chemical characterizations of the samples were inspected by intrinsic viscosity, FTIR, and XRD. The chemical treatment improved effects on the kappa number, morphology, and crystallinity of the lignocellulosic materials. The fibrillation process in a colloidal mill was possible using unbleached OCC fibers, contributing to a more efficient and environmentally friendly procedure. The OCC is a promising alternative source to produce microfibrillated cellulose with suitable properties and high potential in renewable material applications.

摘要

如今, 由于其诱人的物理、化学和机械性能以及对生态的贡献, 从可替代的回收来源生产的木质纤维纳米材料越来越受到人们的关注. 在这项工作中, 利用OCC纸板中的木质纤维素纤维通过机械原纤化制备MFC进行了研究. 此外, 还对碱性制浆和漂白处理的效果进行了比较研究. 通过光学显微镜、SEM和TEM测定了纤维和超细纤维的形态. 通过特性粘度、FTIR和XRD对样品进行了结构和化学表征. 化学处理改善了木质纤维材料的卡伯值、形态和结晶度. 使用未漂白的OCC纤维, 可以在胶体磨中进行纤化过程, 这有助于实现更高效、更环保的过程. OCC是一种很有希望的替代来源, 用于生产具有合适性能和可再生材料应用潜力的微纤维纤维素.

KEYWORDS:

• Microfibrillated cellulose
• cellulosic nanofiber
• Old Corrugated Container (OCC)
• recycled fiber
• mechanical fibrillation

关键词:

• 微纤化纤维素
• 纤维素纳米纤维
• 旧集装箱瓦楞纸
• 再生纤维
• 机械性纤颤

Disclosure statement

The authors declare that there is no conflict of interest.