Evaluation and potential application of novel cellulose nanofibril and lignin-based-graphite functionalized flexible polyurethane foam

Leng, Weiqi; Zhai, Shengcheng; Biao, Pan

doi:10.1007/s10570-019-02700-w

Cited by 15 publications

(8 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was reported that both untreated and CNF/graphite functionalized foams were hydrophobic and could be used to separate oil from water. 37 Cellulose filaments (termed CelFil here) is another class of cellulosic nanomaterials made using mechanical peeling of wood pulp. It is reported to have exceptional mechanical properties, high aspect ratio, and high bonding potential and has the potential to be used in many applications.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flexible polyurethane foams reinforced with organic and inorganic nanofillers

Ghasemi

Amini

Tajvidi

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

The effect of three different types of cellulose nanofillers on the morphology, mechanical, and thermal properties of flexible polyurethane foam was studied. Cellulose nanocrystals (CNC), cellulose nanofibrils (CNF), and cellulose filaments (CelFil) were used as fillers at 0.1-0.8 wt% loading levels. The comparison of the results showed that smaller loading levels resulted in foams with better performance in almost all cases. In the next step, the properties of foams containing CNC, CNF, or CelFil at 0.025%-0.1% loading levels were compared with those made with inorganic nanofillers including nanosilica (nSi), reduced graphene oxide, and halloysite nanotubes (HNT). Among all the properties evaluated, the tensile modulus of the foams was improved up to 40% by adding HNT at 0.05 wt% loading level whereas the addition of CNF resulted in a 44% increase in the compressive modulus of the foams at 0.1 wt% loading level.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Using a mixture of CNF and lignin‐based graphite was also studied and the influence of both CNF and graphite on the surface area and decomposition temperature of the foam was evaluated. It was reported that both untreated and CNF/graphite functionalized foams were hydrophobic and could be used to separate oil from water 37 …”

Section: Introductionmentioning

confidence: 99%

Flexible polyurethane foams reinforced with organic and inorganic nanofillers

Ghasemi

Amini

Tajvidi

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Figure b shows the FTIR spectra of FPU/HNC composites. The signal at 3300 cm –1 , which corresponded to the stretching vibrations of N–H groups, showed that the urethane linkages were successfully created. , The stretching vibrations of the C–H bonds in CH 2 groups were represented by the absorption at 2970 and 2870 cm –1 . , The very low-intensity band at 2275 cm –1 corresponded to unreacted isocyanate . The characteristic bands at around 1720 and 1640 cm –1 were associated with carbonyl groups (C=O) of urethane and monodentate H-bonds of C=O of urea groups, respectively. , Furthermore, the bands at 1593 and 1090 cm –1 indicated the aromatic groups in the examined materials and the stretching vibration of C–O–C for SS, respectively …”

Section: Resultsmentioning

confidence: 98%

“…37,38 The stretching vibrations of the C−H bonds in CH 2 groups were represented by the absorption at 2970 and 2870 cm −1 . 39,40 The very lowintensity band at 2275 cm −1 corresponded to unreacted isocyanate. 41 The characteristic bands at around 1720 and 1640 cm −1 were associated with carbonyl groups (C=O) of urethane and monodentate H-bonds of C=O of urea groups, respectively.…”

Section: Resultsmentioning

confidence: 99%

Halloysite-Decorated Mechanically Robust Polyurethane Nanocomposite Foams for Acoustic Relevance

Maamoun

Elkhateeb

Zulfiqar

2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Noise pollution affects human health and the environment. In this study, halloysite nanoclay (HNC) was employed as a bio-nanofiller with different ratios (1−5 wt %) to improve the thermal, mechanical, and sound absorption capabilities of the flexible polyurethane (FPU) foam. FPU/HNC composites were characterized using X-ray diffraction, Fourier transform infrared, and field emission scanning electron microscopy techniques. In addition, porosity, apparent density, and sol fraction for FPU/HNC composites were investigated. Compared with the unfilled FPU foam, the results of the FPU/HNC 1% sample showed that the density achieved a maximum value of 38.17 Kg/m 3 , while the porosity was reduced to 83.48%. Moreover, the sol fraction reached the highest value of 13.4% for the FPU/HNC 5% sample. Furthermore, thermogravimetric analysis revealed that adding 1 wt % HNC improved thermal stability than the unfilled FPU. Nevertheless, the DSC measurement proved that HNC increased the glass transition temperature (T g ) for the composites' soft segments. Intriguingly, the mechanical measurements exposed that the compressive and tensile strength of the FPU/HNC 1% sample was enhanced to 158.93 and 154.45%; at the same time, the elongation at break dropped to 124.04%. Nevertheless, the sound absorption measurements (20 mm thickness) showed a slight shift to the mid-frequency range (315−1600 Hz) for FPU/HNC composites than the unfilled FPU.

show abstract

“…Then, the mixture was cured in a vacuum oven. [111] Sound absorbent Melamine/CNFs A melamine foam was immersed in a suspension of CNFs, and the melamine foam coated with CNFs was cyclic-freeze-dried. [101] Electronic device Polyurethane/CNFs/silver nanowires A polyurethane was coated with CNFs and silver nanowires using a dip-coating method.…”

Section: Flame Retardancy and Thermal Insulationmentioning

confidence: 99%

Recent development of plant-derived nanocellulose in polymer nanocomposite foams and multifunctional applications: A mini-review

Tanpichai¹

2022

Express Polym. Lett.

View full text Add to dashboard Cite

Evaluation and potential application of novel cellulose nanofibril and lignin-based-graphite functionalized flexible polyurethane foam

Cited by 15 publications

References 50 publications

Flexible polyurethane foams reinforced with organic and inorganic nanofillers

Flexible polyurethane foams reinforced with organic and inorganic nanofillers

Halloysite-Decorated Mechanically Robust Polyurethane Nanocomposite Foams for Acoustic Relevance

Recent development of plant-derived nanocellulose in polymer nanocomposite foams and multifunctional applications: A mini-review

Contact Info

Product

Resources

About