Effect of gamma irradiation on tensile and thermal properties of poplar wood flour-linear low density polyethylene composites

Kumar, Vikram; Gulati, Kapil; Lal, Sohan; Arora, Sanjiv

doi:10.1016/j.radphyschem.2020.108922

Cited by 28 publications

(11 citation statements)

References 49 publications

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“…Meanwhile, the peak near 2910 cm −1 due to the CH stretching vibrations of methyl and methylene in cellulose and lignin transformed into two peaks at 2913.3 and 2846.5 cm −1 that are the characteristic peaks of LLDPE, corresponding to the symmetric and antisymmetric stretching vibration of CH 2 . [ 28 ] These changes occurred on fractured surface of veneer side were attributed to the LLDPE component attachment, indicating the good combination of LLDPE and treated veneer.…”

Section: Resultsmentioning

confidence: 99%

Improve the bonding between wood veneer and wood fiber/high‐density polyethylene composite board for decoration

et al. 2022

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Wood fiber reinforced thermoplastic composites are regarded as a kind of environmentally friendly material obtained by combining recycled thermoplastic and wood fibers together. However, they are difficult to be decorated for using due to their non‐polar, dense, and smooth surface characteristics. In this study, methods for improving the bonding strength between wood veneer and wood fiber/high‐density polyethylene (WF/HDPE) board were explored. A macromolecular coupling agent, allyl polyoxyethylene polyoxypropylene epoxy‐terminated polyether (AEPH) grafted γ‐aminopropyl triethoxysilane (KH‐550) was synthesized to treat wood veneer prior to lamination with WF/HDPE board. For further improving the bonding strength between wood veneer and WF/HDPE board, a low‐density polyethylene (LLDPE) film was inserted between as adhesive. As control, KH‐550, a commonly used coupling agent and water were also used to treat the veneer. Infrared spectroscopy measurement showed that the LLDPE film combines well with both the veneer and WF/HDPE composite board. Surface bonding strength test proved that all treated veneers significantly improved the combination with WF/HDPE substrated and the LLDPE intermediate film played a key role in it. The veneering endowed the WF/HDPE composite board much better flexural properties, up to 77.39 MPa, which is 50% higher than that of WF/HDPE substrate. The AEPH‐KH‐550‐treated veneer presented the highest bonding strength and best water resistant for glue line.

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Section: Resultsmentioning

confidence: 99%

Improve the bonding between wood veneer and wood fiber/high‐density polyethylene composite board for decoration

et al. 2022

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“…The results can be easily converted into comments on mechanistic aspects, which characterize the intimate evolution of structural modification in polymer components. The studied polyethylene-based nanohybrids present much evidence [70][71][72][73] for their long-term stability, where the filler plays the role of oxidation inhibitor. Their general common feature is the filler blocking action on primary degradation intermediates by the capturing on particle surface.…”

Section: Polymers 2020 X X For Peer Review 9 Of 15mentioning

confidence: 99%

Durability of LDPE/UHMWPE Composites under Accelerated Degradation

Zaharescu¹,

Râpă²,

Blanco

et al. 2020

Polymers

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This study presents a detailed analysis of thermal and radiation resistances of low density polyethylene (LDPE)/ultra-high molecular weight polyethylene (UHMWPE) blends containing hydroxyapatite as functional filler and rosemary acting as antioxidant against oxidative degradation. Three main procedures, chemiluminescence (CL), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC), were applied for the determination of the degree of degradation when these materials are subjected to heat and radiation action. The crystallinity was also assessed for the characterization of diffusion peculiarities. The contributions of the mixing components are discussed based on their oxidation strength. The activation energies required for the oxidative degradation of the studied formulations were calculated.

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“…Although several reports have described the effect of gamma radiation on the properties and structures of polymer materials or single fiber composites ( Kumar et al, 2020 ; Mammadov et al, 2017 ; Romanov et al, 2018 ), this study appears to be a new approach that concentrates on the effect of gamma radiation on the hybridization of CNTs/nanoclay based on TPE matrix nanocomposites. The aim of the current study was to examine the effect of various gamma irradiation doses on TPE nanocomposites containing 2.5 wt% carbon nanotubes and 2.5 wt% montmorillonite.…”

Section: Introductionmentioning

confidence: 99%

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

Tarawneh

Saraireh

Chen

et al. 2021

Radiation Physics and Chemistry

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A thermoplastic elastomer (TPE) based nanocomposite with the same weight ratio of hybrid nanofillers composed of carbon nanotubes (CNTs) and montmorillonite nanoclay (DK4) was prepared using a melt blending technique with an internal mixer. The TPE composite was blended from polylactic acid (PLA), liquid natural rubber (LNR) as a compatibilizer and natural rubber (NR) in a volume ratio of 70:10:20, respectively. The weight ratio of CNTs and DK4 was 2.5 wt%. The prepared samples were exposed to gamma radiation at range of 0–250 kGy. After exposure to gamma radiation, the mechanical, thermo-mechanical, thermal and electrical conductivity properties of the composites were significantly higher than unirradiated TPE composites as the irradiation doses increased up to 150 kGy. Transmission electron microscopy (TEM) micrographs revealed the good distribution and interaction between the nano-fillers and the matrix in the prepared TPE hybrid nanocomposites. In summary, the findings from this work definite that gamma irradiation might be a viable treatment to improve the properties of TPE nanocomposite for electronic packaging applications.

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Effect of gamma irradiation on tensile and thermal properties of poplar wood flour-linear low density polyethylene composites

Cited by 28 publications

References 49 publications

Improve the bonding between wood veneer and wood fiber/high‐density polyethylene composite board for decoration

Improve the bonding between wood veneer and wood fiber/high‐density polyethylene composite board for decoration

Durability of LDPE/UHMWPE Composites under Accelerated Degradation

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

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