Alkaline peroxide pulping of oil palm empty fruit bunch by variation of chemical strength

Dermawan, Yunita Megasari; Ghazali, Arniza; Daud, Wan Rosli Wan; Lazin, Mohd Azli Khairil Mat

doi:10.1063/1.4757477

AIP Conference Proceedings

2012

DOI: 10.1063/1.4757477

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Alkaline peroxide pulping of oil palm empty fruit bunch by variation of chemical strength

Yunita Megasari Dermawan¹,

Arniza Ghazali²,

Wan Rosli Wan Daud³

et al.

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Cited by 4 publications

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Augmentation of EFB Fiber Web by Nano-Scale Fibrous Elements

Ghazali

Zukeri

Ishak

et al. 2013

AMR

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Treatment of the abundant oil palm empty fruit bunches with alkaline peroxide chemicals and subsequent fibrillation at varying mechanical energies resulted in favourable morphological changes of the generated fibers. The produced fibrous mass composed of intensely fibrillated elements ranging from micro to nanodiameter fibrils. nanofibrils and webs of nanofibrils were factors contributing to the functionality of the fibrous mass as fibre web augmentation elements. Profound improvement in fiber network is particularly attributable to the ability of the collected elements to fill up inter-fiber gaps and this was attributable to the micro elements in the form of micro fines, segmented micro-fibrils and webs of nanofibrils. The uniquely generated thin layers of nanofibril webs (TN-webs), were found to increase fiber web density by gluing multiple layers of fibers, together. Having landed on the surface of micro-fiber web, these TN-webs were identified as responsible for the masking effects of the underlying micro-fibres. Under such condition, fibers were observed to coalesce, suggesting also an augmented fiber network as evident from the 130% increase in tensile index and a 450% enhancement in burst index of the resultant fiber web relative to those formed with the basic alkaline peroxide chemical-mechanical refining (CMR) synergy. This reveals a great promise to EFB for application as super-strong fibre-web materials such as packaging and specialty paper-based products.

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Augmentation of EFB Fiber Web by Nano-Scale Fibrous Elements

Ghazali

Zukeri

Ishak

et al. 2013

AMR

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Nanofibre Network Rooted from the Alkaline Peroxide Treatment of Oil Palm Empty Fruit Bunches

Ghazali

Zukeri

Dermawan

et al. 2013

AMR

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The increasing popularity of the oil palm empty fruit bunches (EFB) as a source of non-wood fibre has prompted a variety of research on processing and utilisation of the material. In an attempt to define the characters, reusability and end-of-life, oil palm EFB was processed by the alkaline peroxide variable treatment (APVT) systems. Low synergy between alkaline peroxide (AP) chemical and mechanical fibrillation through fibrillation (CMR synergy) revealed the yield of segments of EFB vascular bundles while heightening the mechanical forces further, generated more uniform but a mixture of fiber and segments of fibre bundles. An intermediate CMR synergy generated fibres forming a more well-defined but a rough resultant fibre network due to partial fibrillation of the vascular bundle. Applying maximal CMR synergy was found to generate higher yield of network strengthening fibrous cells. These were later identified as nanoscale fiber network or nanoscan, consisting of 10-80 nm diameter fibers arranging themselves in a systematic network. Analysis of the polarity of fibers harvested from the APVT systems manifests the systematic construction of nanofibrils winding in helical manner to form arrays of nanofibres that glue themselves together as micro-fibrils. Interconnections between fibers and other gluing elements led to the vascular bundle known as the EFB biomass that was once dross and that can now be marvelled as an alternative source of nanofibers for the nanoindustry sector.

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Study on Ozone Bleaching of the Ammonium Sulfite Wheat Straw Pulp

Dong

2017

KEM

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With the rapid economic development, pulp and paper industry has changed from resource consumption to production of clean transformation. This paper is based on the single concentration (7.4%) ozone bleaching, while prolonging the reaction time of a single variable, ozone lignin removal efficiency and the impact on the fiber. After a lot of research and experiments repeatedly found that bleaching whiteness can reach 75.5% (%ISO whiteness), with the increasing of the degree of the tear strength in the ozone bleaching time declining, and finally to 240mN. Breaking length increased first and decreased state of change can be up to 2.1445km. Pulp hardness with KMnO4 value represents the final reach 2.65. The best bleaching time should be 150 minutes, it can be made into pulp and paper all aspects of performance to achieve the best state.

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Alkaline peroxide pulping of oil palm empty fruit bunch by variation of chemical strength

Cited by 4 publications

References 0 publications

Augmentation of EFB Fiber Web by Nano-Scale Fibrous Elements

Augmentation of EFB Fiber Web by Nano-Scale Fibrous Elements

Nanofibre Network Rooted from the Alkaline Peroxide Treatment of Oil Palm Empty Fruit Bunches

Study on Ozone Bleaching of the Ammonium Sulfite Wheat Straw Pulp

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