Nanofibrillated Cellulose as Paper Additive in Eucalyptus Pulps

González, Israel; Boufi, Sami; Pèlach, M. Àngels; Alcalà, Manel; Vilaseca, Fabiola; Mutjé, Pere

doi:10.15376/biores.7.4.5167-5180

Cited by 195 publications

(140 citation statements)

References 16 publications

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“…In addition, further refining, besides consuming more energy, could cause structural damages that limit the performance of the fibres (Hubbe 2014;Gharehkhani et al 2015). This undesired behaviour as pulp is further refined has been also observed for other pulps, regardless of the origin of the raw material and the pulping process (González et al 2012(González et al , 2013Delgado-Aguilar et al 2015).…”

Section: Mechanical Properties Of Rapeseed Tmp and Recycled Fluting Pmentioning

confidence: 87%

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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Section: Mechanical Properties Of Rapeseed Tmp and Recycled Fluting Pmentioning

confidence: 87%

High-Yield Pulp from Brassica napus to Manufacture Packaging Paper

et al. 2017

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“…External fibrillation was clearly seen on the surface of soda-AQ durian rind beaten pulps (Figure 4). These fibrils increased the surface area of fibre (allowing better interaction between fibres), as well as increased hydrogen bonding and filled empty spaces (González et al 2012). Beating increases the surface charge and specific surface area, thus enhancing paper fibre-to-fibre bonding (Bhardwaj et al 2007, Banavath et al 2011, González et al 2012.…”

Section: Image Analysismentioning

confidence: 99%

“…These fibrils increased the surface area of fibre (allowing better interaction between fibres), as well as increased hydrogen bonding and filled empty spaces (González et al 2012). Beating increases the surface charge and specific surface area, thus enhancing paper fibre-to-fibre bonding (Bhardwaj et al 2007, Banavath et al 2011, González et al 2012. Masrol et al (2015a) reported that fibre arrangement and bonding of durian rind pulp Values are means ± standard deviations produced by chemi-mechanical pulping process were not uniform, not straight and had some kinks and crimps compared with soda-AQ pulp.…”

Section: Image Analysismentioning

confidence: 99%

Durian Rind Soda-Anthraquinone Pulp and Paper: Effects of Elemental Chlorine-Free Bleaching and Beating

SR¹,

MHI²,

Adnan³

et al. 2018

JTFS

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A study was conducted to investigate the preliminary characteristics of soda-anthraquinone (soda-AQ) durian rind waste pulp and paper with the effects of elemental chlorine-free (ECF) bleaching and beating revolutions. Pulping was carried out using rotary digester with 0.1% antraquinone, 20% active alkali (NaOH), cooking time of 120 min and temperature of 170 °C. ECF bleaching with chlorine dioxide -alkali extraction -chlorine dioxide -alkali extraction -peroxide sequence and beating in the range of 0 to 1000 revolutions were applied to the unbeaten and unbleached pulp. ECF bleached pulp produced soda-AQ durian rind paper with greater tensile index, burst index, tear index, number of folds, brightness and scattering coefficients, but with slightly lower opacity compared with paper made from unbleached pulp. The results also showed that beating revolutions improved the overall physical and mechanical characteristics of durian rind soda-AQ pulp. Bleaching and beating enhanced the durian rind soda-AQ pulp fiber-to-fiber bonding and strength. Durian rind has potential characteristics as promising new material for papermaking.Keywords: Soda-AQ, refining, chlorine dioxide, alkali extraction, unbeaten and unbleached pulp, EFC bleaching al. 2013). These wastes have huge potential in the paper industry, but they have not been commercially exploited (Requejo et al. 2012). Hence, economical utilisation of these large amounts of agricultural wastes as raw material for pulp and paper industry would be beneficial.In addition to Thailand and Indonesia, Malaysia is one of the major durian flesh exporters. The aril comprises between 15 and 30% of the mass of the fruit (Brown 1997). One durian fruit has approximately 60 to 75% durian skin fibre (Nur Aimi et al. 2014). In 2014, 75,370 ha areas were planted with durian and these produced 373,565 t of fruits (Anonymous 2015). Disposal of massive amounts of peels has caused problems in the community (Hameed & Hakimi 2008 (Charoenvai et al. 2005), and absorbent materials (Mohammed et al. 2012). Perdinan et al. (2014) produced durian rind paper which consisted of durian rind soda pulp, starch and alkyl ketene dimer sizing agent. However, the physical characteristics of the paper did not fulfil the basic specifications for plastic laminated wrapping paper, as outlined by the SNI 14-6519 (SNI 2001). Durian skin fibre has great future potential and suitability for packaging due to its renewable and biodegradable properties and cost-effectiveness (Nur Aimi et al. 2014). Durian rind unbleached pulp produced via chemi-mechanical pulping has great potential for papermaking (Masrol et al. 2015a). Hence, other types of pulping such as chemical sodaanthraquinone (soda-AQ) pulping and various bleaching and beating processes are proposed to improve the characteristics of durian rind pulp produced via chemi-mechanical pulping.Soda-AQ, a common chemical pulping method, is mainly suitable for non-wood fibres. Soda-AQ pulp produces the highest content of alpha-cellulose and has the highest viscosity ...

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“…Opacity is a function of paper thickness, amount of fi ller(s), pulp brightness, and beating degree. Beating makes the paper denser, but excessive beating results in low opacity (GONZÁLES et al, 2012). The scattering coeffi cient is a measure of the ability of Potential of bleached elephant grass soda pulp for production of printing and writing paper grade…”

Section: Opacity and Scattering Coeffi Cientmentioning

confidence: 99%

Production of Printing and Writing Paper Grade Pulp From Elephant Grass

Andrade

Colodette

2016

CERNE

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ABSTRACT:The main goal of this study was to characterize chemically and morphologically elephant grass (Pennisetum purpureum), and evaluate the potential of its fibers for production of printing and writing paper grade pulp. The elephant grass was chemically and morphologically characterized and cooked by the soda process to two different degrees of delignification (kappa 17.5 and 10.6). The resulting pulps were fully bleached by the O-D*-(EP)-D sequence and characterized for their beatability, drainability and physical-mechanical properties. The lignin content (20.2%) was low, indicating that this grass should be easier to pulp. The morphological analyses of the elephant grass indicated a short fiber material, similar to hardwoods. The soda pulp from elephant grass cooked to kappa number 17.5 presented higher screened yield than 10.6 kappa pulp, with alkali demands of 15.0% and 20.0%, respectively. The total active chlorine required by the 17.5 and 10.6 kappa pulps, were 42.1 and 35.1 kg/odt pulp, respectively, to achieve an ISO brightness of approximately 90.0%. The bleached soda pulps cooked to 17.5 and 10.6 kappa number showed similar refinability and resistance to drainage, but the tensile and burst index were highest for the 17.5 kappa pulp at beating energy consumptions in the range of 0-6 Wh. It was concluded that both 10.6 and 17.5 kappa pulps from elephant grass are suitable for the production of printing and writing paper grade pulps, but the highest kappa 17.5 pulp is more economically attractive given its highest pulping yield, despite the significantly increased of chemical demand for bleaching A produção de papel para impressão e escrita Grau de celulose a partir de capim-elefante. A PRODUÇÃO DE PAPEL PARA IMPRESSÃO E ESCRITA A PARTIR DE DA POLPA DE CAPIM-ELEFANTERESUMO: O principal objetivo desse estudo foi caracterizar química e morfologicamente o capim elefante (Pennisetum purpureum), e avaliar o potencial das suas fibras para a produção de polpa para papéis de impressão e escrita. O capim elefante foi caracterizado química e morfologicamente e cozinhado pelo processo soda com dois diferentes graus de deslignificação (número kappa 17,5 e 10,6). As polpas resultantes foram completamente branqueadas pela sequência O-D*-(EP)-D e caracterizadas quanto as suas refinabilidades, drenabilidades e propriedades físico-mecânicas. O conteúdo de ligina (20,2%) foi baixo, indicando ser uma gramínea fácil polpação. A análise morfológica do capim elefante indicou ser um material de fibra curta, semelhante a madeiras de folhosas. A polpa de capim elefante cozida pelo processo soda até número kappa 17,5 apresentou maior rendimento depurado que a polpa de kappa 10,6 com uma demanda de álcali de 15,0% e 20,0%, respectivamente. O cloro ativo total requerido para as polpas de kappa 17,5 e 10,6 foi de 42,1 e 35,1 kg/tas, respectivamente, para atingirem uma alvura de aproximadamente 90,0% ISO. As polpas cozidas pelo processo soda até números kappa 17,5 e 10,6 e branqueadas apresentaram valores similares de refinabilid...

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Nanofibrillated Cellulose as Paper Additive in Eucalyptus Pulps

Cited by 195 publications

References 16 publications

High-Yield Pulp from Brassica napus to Manufacture Packaging Paper

High-Yield Pulp from Brassica napus to Manufacture Packaging Paper

Durian Rind Soda-Anthraquinone Pulp and Paper: Effects of Elemental Chlorine-Free Bleaching and Beating

Production of Printing and Writing Paper Grade Pulp From Elephant Grass

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