Mechanical Pulping: Birch pulp fractions for fine paper and board

Asikainen, Sari; Fuhrmann, Agneta; Robertsén, Leif

doi:10.3183/npprj-2010-25-03-p269-276

Cited by 25 publications

(10 citation statements)

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“…The carbohydrate composition of the pulp and the NFC produced from it are similar, consisting of 73 % glucose, 26 % xylose and 1 % mannose, respectively [27]. In addition to this, the pulp also contains 0.2 % of residual lignin and 0.09 % residual extractives [28]. The charge of the pulp, measured using the standard titration method (SCAN CM 65:02), was found to be approximately 0.04 mmol g −1 .…”

Section: Methodsmentioning

confidence: 73%

Cellulose nanopapers as tight aqueous ultra-filtration membranes

Mautner

Lee

Tammelin

et al. 2015

Reactive and Functional Polymers

168

114

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Section: Methodsmentioning

confidence: 73%

Cellulose nanopapers as tight aqueous ultra-filtration membranes

Mautner

Lee

Tammelin

et al. 2015

Reactive and Functional Polymers

168

114

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“…41 In addition 0.2% of residual lignin and 0.09% residual extractives were found from the pulp. 42 Preparation of modied NFC-PVA composite lms Allylation and epoxidation of the solvent-exchanged NFC (dry matter content 3-4%) was performed by a similar procedure as reported previously. 35 Aqueous solutions of PVA (7 wt%) were prepared by dissolving PVA in water at 90 C for 2 h, and subsequently cooling the mixture to room temperature.…”

Section: Methodsmentioning

confidence: 99%

Modified nanofibrillated cellulose–polyvinyl alcohol films with improved mechanical performance

et al. 2014

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In this study chemically surface-modified nanofibrillated cellulose (NFC) was used at low levels (0.5 to 3 wt%) as reinforcement in a polyvinyl alcohol (PVA) matrix. The modified NFC-PVA films prepared by a solution casting technique showed improved mechanical performance and good optical properties. NFC was allylated and further epoxidised with hydrogen peroxide. The addition of 1 wt% epoxy-NFC enhanced the modulus and strength of the pure PVA film, 474% and 224%, respectively. This composite film exhibited visible light transmittance of 83%. The results also showed that 1 wt% epoxy-NFC loading was beneficial to improve the crystallinity of PVA. SEM characterization confirmed better dispersion of modified NFC within the PVA matrix compared to unmodified NFC. The result showed the favourable effect of chemically modified NFC on the mechanical properties of PVA compared to unmodified NFC as reinforcement.

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“…The composition is 73% glucose, 26% xylose, and 1% mannose . The pulp also contains 0.2% residual lignin and 0.09% residual extractives . Hexamethyldisilazane (HMDS, 99.9%) was purchased from Sigma‐Aldrich.…”

Section: Methodsmentioning

confidence: 99%

Chemically modified cellulose nanofibril as an additive for two‐component polyurethane coatings

Virtanen

Jämsä

Talja

et al. 2017

J of Applied Polymer Sci

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The increasing demand for the use of sustainable materials in industrial applications has created an urge to develop technologies that enable the use of biopolymers such as cellulose for the improvement of properties of commercial products. In this study, the potential of the silyl functionalized cellulose nanofibrils (CNF) as a reinforcing additive for the water‐ and solvent‐based two‐component polyurethane (PU) lacquer coatings was evaluated. The addition of the silylated CNF improved the abrasion resistance, strength, and elasticity of the PU coatings. When using the silylated CNF as an additive, the adhesion of the PU coatings was retained. The oxygen permeation rate of the silylated CNF films was strongly influenced by the nature of the solvent. The silylated CNF showed potential as a reinforcing additive even at low loadings in the two‐component PU lacquers. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44801.

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Mechanical Pulping: Birch pulp fractions for fine paper and board

Cited by 25 publications

References 0 publications

Cellulose nanopapers as tight aqueous ultra-filtration membranes

Cellulose nanopapers as tight aqueous ultra-filtration membranes

Modified nanofibrillated cellulose–polyvinyl alcohol films with improved mechanical performance

Chemically modified cellulose nanofibril as an additive for two‐component polyurethane coatings

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