e-ISSN 2231-8542
ISSN 1511-3701

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Characteristics of Pulp Produced from Refiner Mechanical Pulping of Tropical Bamboo (Gigantochloa scortechinii)

Zaidon Ashaari, Sabiha Salim, Rasmina Halis, Mohd Nor Mohd Yusof and Mohd Hamami Sahri

Pertanika Journal of Tropical Agricultural Science, Volume 33, Issue 2, August 2010

Keywords: Gigantochloa scortechinii, refiner mechanical pulping, bamboo pulp

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Bamboo properties are somewhat similar to certain timbers but it has an advantage of having longer fibres, making it suitable for the production of pulp for paper and hardboard. However, the pulping process is a very crucial stage to produce fibres with an optimum quality. This study was carried out to characterize the pulp of Gigantochloa scortechinii using refiner mechanical pulping (RMP). The parameters evaluated included the effects of pre-treatment soaking in NaOH or steaming of chips and effects of refiner plate gap on pulp quality. Pulp quality was assessed based on the properties, yield, and lignin content of fibres. The pre-treatment with NaOH at 60°C for 6h was found to produce superior quality pulp and lesser lignin content compared to pretreatment by steaming at 150°C for 3 h. Meanwhile, the refiner plate gap test showed that the two cycles of refining (2.5-mm followed by 0.5-mm plate gap) reduced the lumpiness of the fiber, but it had lower felting power and Runkel ratio. Two cycles of refining process also led to higher fibre yield, produced more unbroken and slender fibres as compared to when one cycle treatment using 2.5-mm plate gap was used.

ISSN 1511-3701

e-ISSN 2231-8542

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