Surface modification of cellulose nanofibers with alkenyl succinic anhydride for high-density polyethylene reinforcement

Sato, Akihiro; Kabusaki, Daisuke; Okumura, Hiroaki; Nakatani, Takeshi; Nakatsubo, Fumiaki; Yano, Hiroyuki

doi:10.1016/j.compositesa.2015.11.009

Cited by 117 publications

(86 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The X-ray CT images displays density distribution detected by X-ray intensity attenuation. The resolution of 700 nm in this work is insufficient to allow a detailed evaluation of the nanocomposite materials, but the 3D images do offer useful information about agglomerations of cellulose fibers in the low density polymers such as HDPE (Sato et al 2016;Sakakibara et al 2016) and acrylic resin . In this study, the cellulose with a density of 1.6 g/cm 3 and HDPE with a density of 0.92 g/cm 3 is represented by white bright color and blue color, respectively.…”

Section: Dispersibility Of Cnfs In Hdpe and The Interaction Between Cmentioning

confidence: 99%

“…Here, we determined to be the expected DS around 0.4, because the esterification giving the DS less than 0.55 did not affected to the crystallinity of the original CNF as described in our previous paper (Sato et al 2016). That is, the esterification is limited in only on the surface of the CNFs.…”

Section: Preparation Of Aliphatic Estersmentioning

confidence: 99%

“…The DS value of the cellulose derivative was calculated from the area of the 1740 cm -1 absorbance peak in the Fourier transform infrared (FT-IR) spectru as described in our previous paper (Sato et al 2016). Attenuated total reflection infrared (ATR-IR) spectra were recorded using a FT-IR spectrometer (Spectrum One, Perkin Elmer) at a resolution of 2 cm -1 in the range 600-4000 cm -1 .…”

Section: Determination Of the Degree Of Substitutionmentioning

confidence: 99%

“…Recently, we demonstrated that alkenyl succinate anhydride treatment is effective for reinforcing highdensity polyethylene (HDPE) (Sato et al 2016). However, there is still no strategy for surface design of CNFs to attain a high mechanical reinforcing efficiency in hydrophobic polymers.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Designing cellulose nanofiber surface for high density polyethylene reinforcement

et al. 2018

Self Cite

View full text Add to dashboard Cite

Because of their high mechanical performance, high specific surface area, and high aspect ratio, there is a strong interest in cellulose nanofibers (CNFs) as a reinforcing material for plastics. Although three hydroxyl groups per repeating unit exposed on the surface is a unique characteristic of CNFs, an effective chemical treatment to improve the reinforcing efficiency of CNFs for hydrophobic thermoplastic resin has not yet been reported. In this study, six systematically designed aliphatic ester groups with linear, cyclic and branched structures, were incorporated on the surface of CNFs using the hydroxyl groups with a degree of substitution of 0.4. The melt compounding of the esterified CNFs and HDPE was performed at 140°C using a twin screw extruder followed by injection molding at 160°C and investigated the CNF dispersibility in HDPE and the CNF reinforcing efficiency in injection-molded HDPE samples. Incorporation of linear long chains results in the best dispersion of CNFs in HDPE compared with cyclic and branched chains, but the latter chains give higher reinforcing efficiencies in Young's modulus and tensile strength. Especially, the bulky t-butyl group gave the highest reinforcing efficiency. Thus, the structure of ester groups incorporated on the CNFs very much affects on the dispersibility in HDPE, Young's modulus and tensile strength, and coefficient of thermal expansion (CTE) of the esterified CNFsreinforced HDPE composites. Addition of pivaloylated CNFs increases the Young's modulus of HDPE from 1.20 to 3.32 GPa, and the tensile strength from 23.4 to 51.2 MPa. The CTE is 72.5 ppm/K, which is less than one-third that of the HDPE. The high reinforcing efficiency of these composites is partly explained by the formation of the double shish-kebab crystal structure during injection molding identified by the TEM observation.

show abstract

Section: Dispersibility Of Cnfs In Hdpe and The Interaction Between Cmentioning

confidence: 99%

Section: Preparation Of Aliphatic Estersmentioning

confidence: 99%

Section: Determination Of the Degree Of Substitutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Designing cellulose nanofiber surface for high density polyethylene reinforcement

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…The reinforcing effect of the modified CNFs was enhanced when combined with the addition of MA‐PP to the PP matrix 16 . Sato et al performed the surface hydrophobization of CNFs using alkenyl succinic anhydride (ASA) and studied its reinforcing effect for high density polyethylene (HDPE) 17 . The ASA‐CNF/HDPE composite exhibited a higher tensile modulus and strength than the pure HDPE.…”

Section: Introductionmentioning

confidence: 99%

Reinforcement of polypropylene by cellulose microfibers modified with polydopamine and octadecylamine

Nagamine

Mizuno

Hikima

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

Cellulose microfibers (CMFs) having surfaces modified with polydopamine (PDPA) and octadecylamine (ODA) were prepared, and their reinforcing abilities for polypropylene (PP) were investigated. The PDPA coating was made via self‐polymerization of dopamine (P‐CMF), and subsequent alkylation was conducted by the reaction with ODA (OP‐CMF). The modified CMFs exhibited improved dispersibility in the PP matrix due to the reduced hydrophilicity. The OP‐CMF/PP composite prepared by batch mixing had a higher tensile modulus compared to that for the pure PP and composites with unmodified CMFs. However, excess alkylation lowered the tensile modulus, and the presence of an optimal degree of alkylation was demonstrated. The CMF/PP‐IM composites fabricated by injection molding exhibited improved tensile properties compared to those prepared by batch mixing. Both the tensile modulus and yield stress were increased by increasing the CMF content and improved by the surface modification of the CMFs.

show abstract

Current Status of Nanocellulose‐Based Nanocomposites

Ma¹,

Wang²,

Shen³

et al. 2019

Nanocellulose

View full text Add to dashboard Cite

Surface modification of cellulose nanofibers with alkenyl succinic anhydride for high-density polyethylene reinforcement

Cited by 117 publications

References 23 publications

Designing cellulose nanofiber surface for high density polyethylene reinforcement

Designing cellulose nanofiber surface for high density polyethylene reinforcement

Reinforcement of polypropylene by cellulose microfibers modified with polydopamine and octadecylamine

Current Status of Nanocellulose‐Based Nanocomposites

Contact Info

Product

Resources

About