Fast atmospheric plasma treatment of LLDPE film for preparing formaldehyde emission-free plywood

Cao, Yizhong; Zhang, Tao; Yang, Pei; Chen, Minzhi; Chen, Weimin; Wang, Siqun

doi:10.1007/s00107-020-01551-8

Cited by 6 publications

(3 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Digital image correlation (DIC) analysis enables the visual evaluation of strain by integrating the displacement of a single pixel, and it has exhibited successful applications in revealing stress/strain distribution during the deformation of wood/bamboo-based composites [18][19][20][21]. The relevant literature has demonstrated stress/strain concentrations during the shearing and bending of wood/bamboo-based composites.…”

Section: Introductionmentioning

confidence: 99%

The Observation of Creep Strain Distribution in Laminated Veneer Lumber Subjected to Different Loading Regimes

Xu,

Cao,

Cao

et al. 2024

Forests

Self Cite

View full text Add to dashboard Cite

Timber architectures have arisen as sustainable solutions for high-rise and long-span buildings, assisting in implementing a circular economy. The creep strain dissipation of laminated veneer lumber (LVL) was investigated in this work to understand the inherent creep behaviors of LVL derived from natural wood. The results demonstrated a significant loading regime dependency of the creep behaviors of LVL. Coupled creep strain dissipation that transits/is parallel to the wood–adhesive interface was proven in the creep deformation of flat-wise and edge-wise bent LVL. In contrast, the creep strain dissipated considerably along the wood–adhesive interface when the LVL was subjected to axial compression creep. Further investigation into the morphologies of LVL after creep revealed that direct contact between the loading plane and wood–adhesive interface could be a plausible trigger for the accelerated deformation and the resultant plastic deformation of the LVL after creep. We believe that this work provides essential insights into the creep strain dissipation of LVL. It is thus beneficial for improving creep resistance and assisting in the long-term safe application of LVL-based engineered wood products in timber architectures.

show abstract

Section: Introductionmentioning

confidence: 99%

The Observation of Creep Strain Distribution in Laminated Veneer Lumber Subjected to Different Loading Regimes

Xu,

Cao,

Cao

et al. 2024

Forests

Self Cite

View full text Add to dashboard Cite

show abstract

“…Plasma treatment, in contrast, introduces the polar groups on the hydrophobic surface and thereby enhances the extent of adhesion with a layer of polar polymer when desired. The LL, when plasma-treated, may lead to an oxygen-containing functional group being introduced onto the surface of the substrate. , Reportedly, polyolefin-nanoclay composites offer excellent barrier properties, which may be suitable for packaging applications …”

Section: Introductionmentioning

confidence: 99%

“…The LL, when plasma-treated, may lead to an oxygen-containing functional group being introduced onto the surface of the substrate. 24,25 Reportedly, polyolefin-nanoclay composites offer excellent barrier properties, which may be suitable for packaging applications. 26 The PVA-based anthocyanins structure was vastly studied with the solvent casting method for the intelligent film as the PVA matrix is considered to be safe nonfood material in FCM application according to Commission Regulation of European Union (EU), No.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Nanofibrous Mat-on-Film Bilayered Halochromic Freshness Marker-Enabled Intelligent Food Packaging Film Based on Red Cabbage Anthocyanins

Thakur,

Satapathy

2023

ACS Food Sci. Technol.

View full text Add to dashboard Cite

Bilayered intelligent films based on electrospun poly(vinyl alcohol)/red cabbage extract-anthocyanins (PVA/RCA) nanofibrous mats, bolstered by oxygen-plasma-treated clay-filled polyethylene/clay nanocomposites for monitoring the food freshness, have been fabricated and evaluated. The nanofibrous mats (PVRC) of PVA/RCA were optimally fabricated by electrospinning, followed by their morphological and physio-mechanical characterization. The pH-responsive sensing of the PVRC mats to hydrochloric acid (HCl) and ammonia (NH3) vapors as stimuli was analyzed using the absorption spectra corresponding to HCl and NH3 at ∼530 and ∼650 nm, respectively. The oxygen transmission rate (OTR) of 1083.7 cm3/m2/day and the water vapor permeability (WVP) of 2.34 × 10–9 g/s·m·Pa for the novel bilayered electrospun mat-on-film packaging construct showed enhanced barrier performance with respect to stand-alone LLDPE blown film (LL) with OTR and WVP of 1502.8 cm3/m2/day and 4.7 × 10–9 g/s·m·Pa, respectively. The bilayered constructs were further evaluated as freshness indicators by real-time monitoring of chickens and prawns for intelligent food packaging.

show abstract

The effect of ageing on bonding performance of plasma treated beech wood with urea-formaldehyde adhesive

et al. 2021

View full text Add to dashboard Cite

In the process of wood bonding, the usage of aged and inactivated wooden elements can cause a reduction in mechanical properties of products containing wood-adhesive joints. Treating wood with an atmospheric air plasma represents a sophisticated technique for surface activation. With this regard, to enhance the bondability of normal beech wood (Fagus sylvatica L.) with urea-formaldehyde (UF) adhesive, a dielectric barrier discharge plasma in floating electrode configuration was implemented. In this study, fresh and aged wood specimen both, untreated and plasma treated, were investigated. X-ray photoelectron spectroscopy revealed promotion of carbon-rich species with ageing, but generation of a new functional oxygen-containing functional groups after plasma treatment. Microscopic observations with scanning electron microscope showed no obvious changes in the wood structure after plasma treatment. Surface oxidation consequently improved the wettability of the wood surface with water and UF adhesive. However, this enhanced wettability slightly diminished over time. As shown with dynamic mechanical analysis, the rheological properties of the UF adhesive in wood-adhesive joints were not affected by aging nor by plasma treatment. The positive influence of plasma treatment and negative impact of substrate ageing to the shear strengths of wood lap-joints were determined using an automated bonding evaluation system. Similarly, the negative effect of wood ageing and the positive effect of plasma pre-treatment were reflected in the bending strengths of the produced laminated veneer lumbers. Results showed that plasma treatment of beech wood improves the bonding performance of both fresh and aged wood. Graphic abstract

show abstract

Fast atmospheric plasma treatment of LLDPE film for preparing formaldehyde emission-free plywood

Cited by 6 publications

References 37 publications

The Observation of Creep Strain Distribution in Laminated Veneer Lumber Subjected to Different Loading Regimes

The Observation of Creep Strain Distribution in Laminated Veneer Lumber Subjected to Different Loading Regimes

Electrospun Nanofibrous Mat-on-Film Bilayered Halochromic Freshness Marker-Enabled Intelligent Food Packaging Film Based on Red Cabbage Anthocyanins

The effect of ageing on bonding performance of plasma treated beech wood with urea-formaldehyde adhesive

Contact Info

Product

Resources

About