scholarly journals Advanced and Versatile Lignin-Derived Biodegradable Composite Film Materials Toward a Sustainable World

2021 ◽  
Author(s):  
Hanmin Wang ◽  
Tong-Qi Yuan ◽  
Guoyong Song ◽  
Runcang Sun
Keyword(s):  
Environmental Pollution ◽  
Composite Film ◽  
Biodegradable Plastic ◽  
Biodegradable Composite ◽  
Alternative Materials ◽  
Ecological Problems ◽  
Plastic Products

The excessive use of petroleum-based non-biodegradable plastic products has resulted in severe environmental pollution and ecological problems, which has stimulated the development of biodegradable and renewable alternative materials. Lignin, as...

scholarly journals Development and Characterization of a Biodegradable Colored Film Based on Starch and Chitosan by Using Acacia Catechu

2016 ◽  
Vol 8 (2) ◽  
pp. 123-130
Author(s):  
FB Quader ◽  
RA Khan ◽  
MA Islam ◽  
S Saha ◽  
KN Sharmin
Keyword(s):  
Tensile Strength ◽  
Composite Film ◽  
Thermo Gravimetric Analysis ◽  
Chitosan Film ◽  
Green Technology ◽  
Gravimetric Analysis ◽  
Good Thermal Stability ◽  
Biodegradable Composite ◽  
Acacia Catechu

Green technology like biodegradable films using natural polymer is an obvious need of today. Attempt of this experiment was aimed at development and characterization of a biodegradable colored film based on starch and chitosan by using Acacia catechu. Chitosan reinforced starch based biodegradable composite film was prepared by casting. The chitosan content in the films was varied from 20-80 % (w/w). Tensile strength (TS) was improved significantly with the addition of chitosan but the elongation at break (EB %) of the composite decreased. With the addition of the Acacia catechu, tensile strength of the composites improved more. The acacia content of the film was varied from 0.05-0.2(w/w). The good thermal stability of this prepared film was confirmed by thermo-gravimetric analysis. Structural characterization was done by Fourier transform infrared radiation spectroscopy. Surface morphology of the composite film was examined by scanning electron microscope (SEM) which suggested sufficient homogenization of starch, chitosan and Acacia catechu. Water uptake was found lower for final composites in the comparison to starch/chitosan and chitosan film. The satisfactory rate of degradation in the soil is expected that the final composite film within less than 6 months. The developed films intended to use as the alternative of synthetic non biodegradable colored packaging films.J. Environ. Sci. & Natural Resources, 8(2): 123-130 2015

Plastic bans will rise but recycling faces constraints

2018 ◽  
Keyword(s):  
Consumer Preferences ◽  
Content Type ◽  
Demand Growth ◽  
Wide Range ◽  
Alternative Materials ◽  
Substitute Materials ◽  
Plastic Products

Subject Plastics sector dynamics. Significance Rising concern about plastics pollution is leading to tighter regulation. This is affecting a wide range of industries. Impacts Some plastic products will vanish, others will see less usage as producers will substitute materials and consumer preferences will change. Plastics demand, and demand growth for oil from petrochemicals, will slow, but not sharply unless legislation tightens more than planned. Markets for alternative materials including paper and glass are likely to be boosted.

Preparation and Properties of Bagasses Cellulose Microcrystal Reinforced Poly(Vinyl alcohol) Composite Film

2011 ◽  
Vol 399-401 ◽  
pp. 381-384
Author(s):  
Chun Guang Li ◽  
Bin Guo Zheng ◽  
Wei Gong Peng ◽  
Wei Tian ◽  
Rui Zhang
Keyword(s):  
Thermal Properties ◽  
Composite Film ◽  
Tensile Properties ◽  
Microcrystalline Cellulose ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Elongation At Break ◽  
Biodegradable Composite ◽  
Cellulose Microcrystal

The biodegradable composite films were prepared from bagasse microcrystalline cellulose as filler and poly(vinyl alcohol)(PVA) as polymeric matrix. The crystallinity, the tensile properties and the thermal properties of the composites were tested. Bagasse microcrystalline cellulose was distributed in PVA films as the crystalline state. The results show that the tensile properties and thermal properties were improved with the addition of bagasse microcrystalline cellulose. When bagasse microcrystalline cellulose mass fraction was 5%, both temperature of initial decomposition and maximum weight loss rate of composite film were raised by 11.71°C and 36.86°C, and the tensile strength increased by 17.88%, and the elongation at break increased by 36.62% compared to those of pure PVA.

scholarly journals Pengujian Mekanik dan Biodegradabilitas Plastik Biodegradable Berbahan Baku Pati Bonggol Pisang dengan Penambahan Kitosan, Sorbitol, dan Minyak Kayu Manis

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Dewi Oetary ◽  
Syaubari Syaubari ◽  
Medyan Riza
Keyword(s):  
Tensile Strength ◽  
Environmental Pollution ◽  
Water Absorption ◽  
Raw Materials ◽  
Chitosan Nanoparticles ◽  
Biodegradable Plastic ◽  
Cinnamon Oil ◽  
Complete Degradation ◽  
Materials Used ◽  
Break Water

<p>Biodegradable plastic is an alternative to conventional plastic which has been very difficult to degrade and causes environmental pollution. Biodegradable plastic raw materials come from plants or plant wastes, so they are easily degraded by the environment and the utilization of waste becomes more efficient. The general objective of this study is to obtain the characteristics of plastics that meet the standards by varying the concentration of the materials used. This study used Kepok banana hump starch with variations in the concentration of chitosan, sorbitol, and cinnamon oil. The variable used is the ratio of weight of starch and water (1: 5). The concentration of chitosan nanoparticles was 0.25%, 0.5%, and 0.75%, sorbitol concentrations were 2 ml, 4 ml, and 6 ml, and the concentration of cinnamon was 0%, 0.5%, and 1%. Tests carried out are tensile strength, elongation of break, water absorption, and biodegradability. The best tensile strength results are 19.6 MPa, the best elongation is 47.69%, the highest water absorption is 53.77% and the lowest is 22.63%, and the complete degradation takes the longest time of 77 days.</p>

scholarly journals Zero-Waste Campaign: Assessment on University Student’s Behaviour, Awareness, and Impact on Plastic Products

2020 ◽  
Vol 5 (3) ◽  
pp. 24-29
Author(s):  
Izzah Abd Hamid ◽  
Wan Asrina Wan Yahaya
Keyword(s):  
Environmental Pollution ◽  
Daily Life ◽  
Future Generations ◽  
Young Generation ◽  
Zero Waste ◽  
Face To Face ◽  
The Impact ◽  
Plastic Products

Plastic products are cheap and practically easy to use in human daily life. However, the product is well-known for being difficult to decompose and have become a main source of environmental pollution. Hence, it is important to continuously educate the young generation on the importance of environmental pollution and conservation. Therefore, our objective is to assess the behaviours and awareness of students who are using plastic products and the impact of the zero-waste campus campaign in Universiti Putra Malaysia Bintulu Sarawak Campus (UPMKB). About 249 respondents were interviewed face to face using designed survey forms, after a year the campaign had been launched. The results indicated that the respondents’ behaviour was still dependent on plastic products. However, their awareness was considered alert enough with 46.79% being aware that the products were difficult to decompose. The imposed levy charge of MYR0.50 (USD0.12) in UPMKB provided a significant impact on reducing plastic usage where 83.94% supported the campaign by bringing their own food containers. The outcomes from this campaign may continuously raise awareness behaviour among future generations to reduce plastics usage and to conserve nature.

Tough, strong, and biodegradable composite film with excellent UV barrier performance comprising soy protein isolate, hyperbranched polyester, and cardanol derivative

2019 ◽  
Vol 21 (13) ◽  
pp. 3651-3665 ◽  
Author(s):  
Weidong Gu ◽  
Xiaorong Liu ◽  
Feng Li ◽  
Sheldon Q. Shi ◽  
Changlei Xia ◽  
...  
Keyword(s):  
Composite Film ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Hyperbranched Polyester ◽  
Biodegradable Composite ◽  
Barrier Performance

Tough and biodegradable soy protein isolate film with excellent UV barrier performance by hyperbranched polyester, and cardanol derivative.

scholarly journals Image Analysis to Estimate Mulch Residue in Soil

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Carmen Moreno ◽  
Ignacio Mancebo ◽  
Antonio Saa ◽  
Marta M. Moreno
Keyword(s):  
Image Analysis ◽  
Environmental Pollution ◽  
Agricultural Soils ◽  
Bare Soil ◽  
Color Images ◽  
Biodegradable Plastic ◽  
Central Spain ◽  
Lighting Conditions ◽  
Soil Area

Mulching is used to improve the condition of agricultural soils by covering the soil with different materials, mainly black polyethylene (PE). However, problems derived from its use are how to remove it from the field and, in the case of it remaining in the soil, the possible effects on it. One possible solution is to use biodegradable plastic (BD) or paper (PP), as mulch, which could present an alternative, reducing nonrecyclable waste and decreasing the environmental pollution associated with it. Determination of mulch residues in the ground is one of the basic requirements to estimate the potential of each material to degrade. This study has the goal of evaluating the residue of several mulch materials over a crop campaign in Central Spain through image analysis. Color images were acquired under similar lighting conditions at the experimental field. Different thresholding methods were applied to binarize the histogram values of the image saturation plane in order to show the best contrast between soil and mulch. Then the percentage of white pixels (i.e., soil area) was used to calculate the mulch deterioration. A comparison of thresholding methods and the different mulch materials based on percentage of bare soil area obtained is shown.

Biobased Biodegradable Polymers for Ecological Applications: A Move Towards Manufacturing Sustainable Biodegradable Plastic Products

2019 ◽  
pp. 215-253 ◽  
Author(s):  
Sudhakar Muniyasamy ◽  
Sudhakar Muniyasamy ◽  
Kulanthaisamy Mohanrasu ◽  
Kulanthaisamy Mohanrasu ◽  
Abongile Gada ◽  
...  
Keyword(s):  
Biodegradable Polymers ◽  
Biodegradable Plastic ◽  
Ecological Applications ◽  
Plastic Products
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