Cellulose-Based Films with Ultraviolet Shielding Performance Prepared Directly from Waste Corrugated Pulp

As the most important paper packaging materials, corrugated cartons with a tremendous amount of production demonstrate several advantages and have been widely used in daily life. However, waste corrugated cartons (WCCs) are usually recycled and reused to produce new corrugated cartons, and their properties are decreased dramatically after several cycles. Therefore, recycling and converting WCCs into cellulose-based film with high value is attractive and significant. Herein, without any pretreatment, the waste old corrugated cartons were directly dissolved in ionic liquid 1-allyl-3-methylimidazolium chloride, and semitransparent cellulose-based films were successfully fabricated. It was indicated that cellulose-based films displayed better UV-shielding property and hydrophobicity than traditional cellulose films. Interestingly, the cellulose-based films regenerated from deionized water displayed higher tensile strength, elongation at break, and toughness. Their tensile strength could reach 23.16 MPa, exhibiting enormous superiority as wrapping and packaging materials to replace the petrochemical polyethylene membrane (8.95 MPa). Consequently, these renewable, biodegradable, and high-valued cellulose-based films were successfully fabricated to simultaneously realize the valorization of old corrugated cartons and supplement the petrochemical plastics.

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Novel Blend Films Prepared from Solution of Collagen and Cellulose in 1-Allyl-3-methylimidazolium Chloride Ionic Liquid

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.418-420.30 ◽

2011 ◽

Vol 418-420 ◽

pp. 30-33 ◽

Cited By ~ 2

Author(s):

Huai Fang Wang ◽

Hai Ning Lv ◽

Jing Feng ◽

Zhi Kai Wang

Keyword(s):

Tensile Strength ◽

Water Absorption ◽

Weight Ratio ◽

Light Transmittance ◽

Strong Interactions ◽

Mixing Ratio ◽

Absorption Properties ◽

Elongation At Break ◽

Blend Films ◽

Cellulose Films

Collagen/cellulose films were made by the blend solutions of collagen, cellulose in this paper. To begin with, collagen and cellulose was dissolved in 1-allyl-3-methylimidazolium chloride ([Amim]Cl）. The structure of the blend films was characterized by FTIR and XRD. The effects of weight ratio between the two polymers on light transmittance, tensile strength, elongation at break and water absorption of the film were studied. The results showed that there were strong interactions and good compatibility between collagen and cellulose in the film and the polymers have strongest interactions at the mixing ratio of 5:5. The blend films possess better properties such as mechanical and water absorption properties than those made of single polymer.

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Regenerated Cellulose/Nypa Fruticans Fiber Biocomposite Films Using Ionic Liquid

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.754-755.266 ◽

2015 ◽

Vol 754-755 ◽

pp. 266-270 ◽

Cited By ~ 2

Author(s):

Vaniespree Govindan ◽

Salmah Husseinsyah ◽

Teh Pei Leng ◽

Marliza Mosthapa Zakaria ◽

Faisal Amri Tanjung

Keyword(s):

Tensile Strength ◽

Ionic Liquid ◽

Tensile Properties ◽

Microcrystalline Cellulose ◽

Regenerated Cellulose ◽

X Ray Diffraction ◽

Elongation At Break ◽

X Ray ◽

Nypa Fruticans ◽

Biocomposite Films

Regenerated cellulose (RC) biocomposite films from Nypa Fruticans Fiber (NFF) and microcrystalline cellulose (MCC) were prepared by dissolving cellulose in lithium chloride (LiCl) and dimethylacetamide (DMAc). The effect of NFF content on tensile properties and X-ray diffraction were studied. The results found that the tensile strength and Young’s modulus of RC biocomposite films increased from 1 wt% to 3 wt% of NFF content and decreased at 4 wt% of NFF content. The elongation at break of RC biocomposite films decreased with increases NFF content. The crystallinity of RC biocomposite films also showed the highest crystallinity at 3 wt% of NFF content.

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Influence of Blow-Up Ratio on Properties of Cellulose Packaging Films by Blow-Extrusion Process

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.380.260 ◽

2011 ◽

Vol 380 ◽

pp. 260-264

Author(s):

Tian Lan ◽

Jian Qing Wang ◽

Zheng Wei Jin

Keyword(s):

Tensile Strength ◽

Cross Section ◽

Food Packaging ◽

Blow Up ◽

Extrusion Process ◽

Blown Films ◽

Elongation At Break ◽

Cellulose Films ◽

Lower Porosity ◽

Green Packaging

The blow-extruded tube-like regeneration cellulose films in different blow-up ratios were prepared by NMMO technology. It was studied the effect of different blow-up ratio on the mechanical and obstructing properties as well as the morphology cross-section of cellulose blown films. It is found that the tensile strength and obstructing performance except elongation at break of films are improved when blow-up ratios increasing. The tensile strength of 1.3, 1.7 blow-up ratio cellulose blown films in longitudinal and transverse is 36.4MPa and 39.9MPa, 13.8MPa and 29.04MPa, respectively. The elongation at a break of 1.3, 1.7 blow-up ratio cellulose blown films in longitudinal and transverse is 105.4% and 72.01%, 42.4% and 25.79%, respectively. The OPF and WVP value of 1.3, 1.7 blow-up ratio cellulose blown films are 13.34×10-15cm3•cm/(cm2•s•Pa) and 1.36×10-15cm3•cm/(cm2•s•Pa) , 4.18×10-13g•cm/cm2•s•Pa and 1.87×10-13g•cm/cm2•s•Pa, respectively. The SEM picture of cross-section of 1.7 blow-up ratio films displays denser and lower porosity than 1.3 blow-up ratio films. According to the results of study, the films prepared by using NMMO technology would be used in food packaging or other fields as a kind of green packaging material.

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Transparent Cellulose-Based Films Prepared from Used Disposable Paper Cups via an Ionic Liquid

Polymers ◽

10.3390/polym13234209 ◽

2021 ◽

Vol 13 (23) ◽

pp. 4209

Author(s):

Zhen Xu ◽

Qiwen Zhou ◽

Lixiang Wang ◽

Guangmei Xia ◽

Xingxiang Ji ◽

...

Keyword(s):

Ionic Liquid ◽

Daily Life ◽

Low Cost ◽

Packaging Materials ◽

Good Mechanical Property ◽

Cellulose Film ◽

Green Process ◽

Pure Cellulose ◽

The Difference ◽

Paper Cups

Paper cups are widely employed in daily life with many advantages, but most of the used paper cups are incinerated or landfilled, due to the great challenge of separating the thin inner polyethylene (PE) coating, causing the waste of energy and the pollution of our environment. Therefore, recycling and converting the used paper cups into high-value materials is meaningful and important. In this work, transparent cellulose-based films were successfully prepared from the used paper cups via 1-allyl-3-methylimidazolium chloride ionic liquid after simple pretreatment. Additionally, the difference in properties and structures of cellulose-based films regenerated in different coagulation baths (water or ethanol) was also explored. It was found that the cellulose-based film possessed good thermal property and displayed better hydrophobicity than the traditional pure cellulose film. Moreover, they also demonstrated good mechanical property and the tensile strength of cellulose-based film regenerated in water can reach 31.5 Mpa, higher than those of cellulose-based film regenerated in ethanol (25.5 Mpa) and non-degradable polyethylene film (9–12 MPa), indicating their great potential as the packaging materials. Consequently, valorization of the low cost used paper cups and preparation of high-valve cellulose-based films were realized simultaneously by a facile and green process.

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