Basic effects of pulp refining on fiber properties—A review

Gharehkhani, Samira; Sadeghinezhad, Emad; Kazi, S.N.; Yarmand, Hooman; Badarudin, A.; Safaei, Mohammad Reza; Zubir, Mohd Nashrul Mohd

doi:10.1016/j.carbpol.2014.08.047

Cited by 288 publications

(178 citation statements)

References 86 publications

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“…Pulp consists of cellulose fibers that come from wood and non-wood plants, and it is the major raw material in papermaking (Gharehkhani et al 2015). Kraft fibers are usually refined by one or more passes between the rotor and stator of a typical refiner.…”

Section: Refiningmentioning

confidence: 99%

Fiber Surface and Paper Technical Properties of Eucalyptus globulus and Eucalyptus nitens Pulps after Modified Cooking and Bleaching

Antes¹,

Joutsimo²

2015

BioResources

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The SuperBatch™(SB), CompactCooking™(CC), and Lo-Solids™ (LS) modified cooking methods were evaluated relative to the cell wall surface and paper technical properties of bleached Eucalyptus globulus and Eucalyptus nitens. E. globulus pulps presented higher screened yield and brightness than E. nitens, which needed higher H-factor to reach a kappa number target. Independently of the cooking method or species, all the samples consumed similar amounts of ClO2 to reach a brightness of 90% ISO. E. nitens pulps showed lower carbohydrates and higher extractives content on the fiber surface, regardless of the cooking method. E. nitens presented slightly higher surface charge of the bleached pulps. Surface charges of CC and LS pulps were higher independently of cooked Eucalyptus species. Water retention value (WRV) for E. nitens pulps were higher than for E. globulus. No differences were observed in refinability of different cooking methods, however E. nitens pulps showed higher tensile and lower bulk compared to E. globulus. E nitens presented a thinner fiber cell wall than E. globulus. This seems to be more relevant for paper technical properties and WRV than fiber charge or surface composition. No correlation between surface composition, fiber surface properties, and paper technical properties among the cooking methods could be determined.

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Section: Refiningmentioning

confidence: 99%

Fiber Surface and Paper Technical Properties of Eucalyptus globulus and Eucalyptus nitens Pulps after Modified Cooking and Bleaching

Antes¹,

Joutsimo²

2015

BioResources

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“…During the process, the pulp was refined between two parallel grooved plates, called rotor and stator (Fig. 1) 29 . Generally, the refining process is performed in three main stages shown in Fig.1.…”

Section:  Experimental Methodsmentioning

confidence: 99%

“…In the second stage, the fibers are compressed by the surface of rotor and stator bars and most of the water is compressed out of the fibers. Finally, fibers are altered by shear forces resulting in the delamination of the fiber's cell wall 29 . The amount of refining is described by It is known that the refining process influences the structural properties and surface chemical composition of fibers 28,29 .…”

Section:  Experimental Methodsmentioning

confidence: 99%

“…Finally, fibers are altered by shear forces resulting in the delamination of the fiber's cell wall 29 . The amount of refining is described by It is known that the refining process influences the structural properties and surface chemical composition of fibers 28,29 . Specifically, the extent of refining significantly affects the cellulose fiber morphology and network in the handsheet.…”

Section:  Experimental Methodsmentioning

confidence: 99%

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Enhanced Barrier Performance of Engineered Paper by Atomic Layer Deposited Al₂O₃ Thin Films

Mirvakili

Bui

Ommen

et al. 2016

ACS Appl. Mater. Interfaces

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 ABSTRACTSurface modification of cellulosic paper is demonstrated by employing plasma assisted atomic layer deposition. Al2O3 thin films are deposited on paper substrates, prepared with different fiber sizes, to improve their barrier properties. Thus, a hydrophobic paper is created with low gas permeability by combining the control of fiber size (and structure) with atomic layer deposition of Al2O3 films. Papers are prepared using Kraft softwood pulp and thermomechanical pulp. The cellulosic wood fibers are refined to obtain fibers with smaller length and diameter. Films of Al2O3, 10, 25, and 45 nm in thickness, are deposited on the paper surface. The work demonstrates that coating of papers prepared with long fibers efficiently reduces wettability with slight enhancement in gas permeability, while on shorter fibers, it results in significantly lower gas permeability. Wettability studies on Al2O3 deposited paper substrates, have shown water wicking and absorption over time only in papers prepared with highly refined fibers. It is also shown that there is a certain fiber size at which the gas permeability assumes its minimum value, and further decrease in fiber size will reverse the effect on gas permeability.

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“…In contrast, refining of virgin fibres achieved a higher relative gain of paper strength at the cost of less energy. Even more energy can be saved by using non-wood raw materials (Aguado et al 2015;Gharehkhani et al 2015). Table 4 and Figure 4 show the convenience of using the thermomechanical pulp from rapeseed stalks for fluting production.…”

Section: Mechanical Properties Of Rapeseed Tmp and Recycled Fluting Pmentioning

confidence: 99%

High-Yield Pulp from Brassica napus to Manufacture Packaging Paper

et al. 2017

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The stalks that are left on the field after harvesting rapeseed crops could be used to make packaging grade paper. This work evaluates the suitability of mechanical and thermomechanical pulps from rapeseed stalks for papermaking, with a view to alleviating the limitations of recycled fluting. Their performance was compared to that of commercial fluting (recycled fluting) of the same basis weight, 100 g/m 2 , and to that of virgin pulps from pine wood. The thermomechanical pulp was refined to improve key mechanical properties. Its drainability was found to be very low, even before refining, and its breaking length after beating to 1200 PFI revolutions, 4 km, surpassed that of sheets of recycled fluting that were obtained under similar conditions. These findings support the hypothesis that high-yield pulps from rapeseed stalks are a strong choice of virgin fibres to produce fluting and, generally speaking, packaging paper.

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Basic effects of pulp refining on fiber properties—A review

Cited by 288 publications

References 86 publications

Fiber Surface and Paper Technical Properties of Eucalyptus globulus and Eucalyptus nitens Pulps after Modified Cooking and Bleaching

Fiber Surface and Paper Technical Properties of Eucalyptus globulus and Eucalyptus nitens Pulps after Modified Cooking and Bleaching

Enhanced Barrier Performance of Engineered Paper by Atomic Layer Deposited Al₂O₃ Thin Films

High-Yield Pulp from Brassica napus to Manufacture Packaging Paper

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Basic effects of pulp refining on fiber properties—A review

Cited by 288 publications

References 86 publications

Fiber Surface and Paper Technical Properties of Eucalyptus globulus and Eucalyptus nitens Pulps after Modified Cooking and Bleaching

Fiber Surface and Paper Technical Properties of Eucalyptus globulus and Eucalyptus nitens Pulps after Modified Cooking and Bleaching

Enhanced Barrier Performance of Engineered Paper by Atomic Layer Deposited Al2O3 Thin Films

High-Yield Pulp from Brassica napus to Manufacture Packaging Paper

Contact Info

Product

Resources

About

Enhanced Barrier Performance of Engineered Paper by Atomic Layer Deposited Al₂O₃ Thin Films