Effect of the Bambusa vulgaris, Gigantochloa levis, and Gigantochloa scortechinii Pulp Loading on Mechanical Properties of Recycled Paper

ABSTRACT

The effect of bamboo virgin pulp addition to the recycled pulp in enhancing the recycled paper’s mechanical properties was evaluated. Malaysian bamboo virgin pulp used in this research were Bambusa vulgaris (Aur bamboo), Gigantochloa levis (Beting bamboo), and Gigantochloa scortechinii (Semantan bamboo). The addition of 2.5, 5, 7.5, and 10 wt% of bamboo virgin pulp improved the burst index, folding endurance, tearing index, and tensile index of the recycled paper from 2.27 to 3.17 kPa.m²/g, 7 to 15 double folds, 5.98 to 8.27 mN.m²/g, and 24.86 to 32.40 Nm/g, respectively. These were equivalent to the increment percentage for burst index, folding endurance, tearing index, and tensile index at the range of 6.61 to 39.65%, 28.57 to 114.29%, 15.72 to 38.59%, and 10.50 to 33.87%, respectively. The application of bamboo virgin pulp is very promising in improving the recycled paper’s mechanical properties and this could be further extended in enhancing the other properties such as physical and optical paper properties.

摘要

评价了在再生纸浆中加入竹原浆对提高再生纸力学性能的影响. 本研究中使用的马来西亚竹原浆为Bambusa vulgaris（Aur竹）、Gigantochloa levis（Beting竹）和Gigantochlia scortechinii（Semantan竹）. 添加2.5、5、7.5和10 wt%的竹原浆使再生纸的爆裂指数、耐折性、撕裂指数和拉伸指数分别从2.27提高到3.17kPa.m2/g、7提高到15倍、5.98提高到8.27mN.m2/g和24.86提高到32.40 Nm/g. 这些相当于爆裂指数、耐折性、撕裂指数和拉伸指数的增量百分比，分别为6.61至39.65%、28.57至114.29%、15.72至38.59%和10.50至33.87%. 竹原浆的应用在改善再生纸的机械性能方面非常有前景，这可以进一步扩展到提高其他性能，如物理和光学纸的性能.

KEYWORDS:

• Bamboo pulp
• paper mechanical properties
• recycled paper
• bamboo papermaking
• soda-AQ pulping

关键词:

• 竹浆
• 纸张力学性能
• 再生纸
• 竹造纸
• soda-AQ pulping苏打AQ法制浆

Disclosure statement

No potential conflict of interest was reported by the author(s).