Effect of Initial Water Content on Foaming Quality and Mechanical Properties of Plant Fiber Porous Cushioning Materials

Luo, Yi; Xiao, Shengling; Li, Shilei

doi:10.15376/biores.12.2.4259-4269

Cited by 16 publications

(13 citation statements)

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“…There is an increased drive to replace lightweight products derived from petrochemicals, such as expanded polystyrene, polyurethane and phenolic foam with new, sustainable and environmentally friendly materials. Low density materials made using natural fibres can play a role in this endeavour, provided it is possible to match the properties of the existing materials in relation to thermal [ 1 ] and acoustic [ 2 ] insulation, fire retardancy and mechanical strength for packing materials [ 3 , 4 ]. The foam-forming technique may offer a promising route to create non-woven natural materials from cellulose, peat or spent grain, with characteristics that can be tuned via controlling properties of the foam used for their production.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the foam-forming of non-woven lightweight fibrous materials using X-ray tomography

et al. 2021

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Foam-forming has in the past predominantly been used to create two-dimensional sheet-like fibrous materials. Allowing the foam to drain freely and decay under gravity, rather than applying a vacuum to remove it rapidly, we can produce lightweight three-dimensional fibrous structures from cellulose fibres, of potential use for thermal and acoustic insulation. $$\mu$$ μ CT scanning of the fibrous materials enable us to determine both void size distributions and also distributions of fibre orientations. Through image analysis and uniaxial compression testing, we find that the orientation of the fibres, rather than the size of the voids, determine the compressive strength of the material. The fibrous samples display a layering of the fibres perpendicular to the direction of drainage of the precursor liquid foam. This leads to an anisotropy of the compressive behaviour of the samples. Varying the initial liquid fraction of the foam allows for tuning of the compressive strength. We show an increase in over seven times can be achieved for samples of the same density (13 kg.m-3). Graphic abstract

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Section: Introductionmentioning

confidence: 99%

“…In Sect. 3 we characterize the fibrous materials in terms of density distributions and fibre orientation. The average void size in the samples is related to the average bubble size in the precursor foam-fibre dispersions.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the foam-forming of non-woven lightweight fibrous materials using X-ray tomography

et al. 2021

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“…cushioning coefficient of the aerogels and the maximum static stress is shown in Figure 3e. The smaller the cushioning coefficient, the better the cushioning performance of the aerogel [16]. As can be seen, the cushioning properties of CNGA50-7 (4.887) and CNGA75-7 (5.039) are better than those of CNGA25-7 (5.170), indicating that the addition of glycerin improved the cushioning performances of the aerogels.…”

Section: Effect Of Cross-linking Time On 3d-printed Cushioning Aerogelsmentioning

confidence: 91%

3D-Printed Nanocellulose-Based Cushioning–Antibacterial Dual-Function Food Packaging Aerogel

et al. 2021

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Cushioning and antibacterial packaging are the requirements of the storage and transportation of fruits and vegetables, which are essential for reducing the irreversible quality loss during the process. Herein, the composite of carboxymethyl nanocellulose, glycerin, and acrylamide derivatives acted as the shell and chitosan/AgNPs were immobilized in the core by using coaxial 3D-printing technology. Thus, the 3D-printed cushioning–antibacterial dual-function packaging aerogel with a shell–core structure (CNGA/C–AgNPs) was obtained. The CNGA/C–AgNPs packaging aerogel had good cushioning and resilience performance, and the average compression resilience rate was more than 90%. Although AgNPs was slowly released, CNGA/C–AgNPs packaging aerogel had an obvious antibacterial effect on E. coli and S. aureus. Moreover, the CNGA/C–AgNPs packaging aerogel was biodegradable. Due to the customization capabilities of 3D-printing technology, the prepared packaging aerogel can be adapted to more application scenarios by accurately designing and regulating the microstructure of aerogels, which provides a new idea for the development of food intelligent packaging.

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“…Huang et al (2014) produced foamed cushioning materials with 20% cationic starch, 5% polyvinyl alcohol, 74% beaten fiber slurry, and 1% of magnesium stearate. Luo et al (2017) prepared a porous, wood-fiber-based cushioning materials for packaging using poplar fibers and wood powder raw materials by hotpress molding. Eco-friendly cushioning materials were prepared with thermomechanical pulps (TMPs) from waste woods using a suction-forming method (Lee et al 2010).…”

Section: Bio-based Foam As Packaging Materialsmentioning

confidence: 99%

Prospects for Replacement of Some Plastics in Packaging with Lignocellulose Materials: A Brief Review

Su¹,

Yang

Liu³

et al. 2018

BioResources

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There has been increasing concern regarding environmental problems arising from the widespread use of petroleum-based plastic materials for packaging. Many efforts have been made to develop sustainable and biodegradable packaging materials to replace plastic products. The current review summarizes recent research progress in developing cellulose packaging materials to replace plastics used for cushioning and barrier packaging functions based on pulp fibers, cellulose nanofibers, and regenerated cellulose films to benefit from their renewability, sustainability and biodegradability. The cushioning packaging materials include molded pulp products and bio-based foams. Advanced cellulose films and paper can be good barriers for oxygen and carbon dioxide gases, as well as for water vapor. Several cellulose fiber-based packaging products have been commercialized in areas that used to be occupied solely by plastic products.

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Effect of Initial Water Content on Foaming Quality and Mechanical Properties of Plant Fiber Porous Cushioning Materials

Cited by 16 publications

References 0 publications

Analysis of the foam-forming of non-woven lightweight fibrous materials using X-ray tomography

Analysis of the foam-forming of non-woven lightweight fibrous materials using X-ray tomography

3D-Printed Nanocellulose-Based Cushioning–Antibacterial Dual-Function Food Packaging Aerogel

Prospects for Replacement of Some Plastics in Packaging with Lignocellulose Materials: A Brief Review

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