Appropriate bleaching technique for coconut fiber

ABSTRACT

Recipes for bleaching of coconut fiber at both ambient and elevated temperature were investigated using appropriate statistical design of experiments using hydrogen peroxide with essential bleaching assisting auxiliaries. The statistical tool is also being utilized to suggest optimized recipe for the treatments considering mainly whiteness index, yellowness index, and tenacity. Statistical computation affirmed need of higher amount of bleaching chemicals in elevated temperature than ambient bleaching. Both the bleaching treatments were resulting in small mass loss essentially of noncellulosic nature including lignin and thus result in improved mechanical properties. The change in whiteness and yellowness index of the bleached fiber under the shed storage condition for duration of 2 years was found to be negligible.

摘要

采用适当的助漂助剂对过氧化氢进行适当的统计设计，研究了椰壳纤维在常温和高温下漂白的配方。统计工具也被用来表明主要考虑白度处理配方、黄度指数和坚韧。统计计算证实了较高温度下漂白化学品比常温漂白需要更多的漂白剂。这两种漂白处理造成的质量损失基本上是非纤维素性质，包括木质素，从而导致改善的机械性能。变化在白度的漂白纤维黄度指数棚贮藏条件下两年的时间被认为是可以忽略不计。

KEYWORDS:

• Bleaching treatment
• coconut fiber
• physico-mechanical properties
• XRD
• SEM

关键词:

• 漂白处理
• 椰子纤维
• 物理力学性质