Biodegradable Plastic
Mostrando 1-12 de 30 artigos, teses e dissertações.
-
1. Materiales eco-compatibles reforzados a base de almidón de mandioca para aplicaciones agronómicas
ABSTRACT Plastic mulch is used in various crops production in order to increase yield, extend growing season, weed control, increase fertilizers efficiency and improve soil conditions. However, since such plastics removal and disposal represent not only an additional cost, but also a source of environmental pollution, interest in starch-based materials as a
Matéria (Rio J.). Publicado em: 02/08/2018
-
2. Comportamiento al creep de un polímero utilizado para impresión 3D
ABSTRACT In recent years, additive construction or 3D printing technology is being widely used for manufacturing goods. This construction procedure has and will have a great industrial impact. There are several 3D printing processes, and among of them the most known is called Fused Deposition Modeling (FDM). The objective of the present paper is oriented to
Matéria (Rio J.). Publicado em: 19/07/2018
-
3. Microstructure and thermal and functional properties of biodegradable films produced using zein
Abstract Research is being conducted in an attempt to produce biodegradable packaging to replace plastic products, thereby reducing solid waste disposal. In this work, zein films were produced from vegetable oils (macadamia, olive and buriti) and from pure oleic acid. The surface of zein-based films made using oleic acid has a good lipid distribution. The h
Polímeros. Publicado em: 15/03/2018
-
4. Biodegradation in Soil of the PHB/Wood Flour (80/20) and PHB/Sisal Fiber (80/20) Tubes
This paper presents the results of a study that aimed to monitor and evaluate biodegradation in soil, by the mass loss and the mechanical properties of plastic tubes. For this work, there were extruded and injected plastic tubes made of biodegradable polymer poly(hydroxybutyrate) - (PHB) and composite PHB/Wood Flour and PHB/Sisal Fiber, both with 20% fiber.
Mat. Res.. Publicado em: 11/05/2017
-
5. Processing and Properties of PCL/Cotton Linter Compounds
Biodegradable compounds of poly(ε-caprolactone) (PCL)/ cotton linter were melting mixed with filling content ranging from 1% to 5% w/w. Cotton linter is an important byproduct of textile industry; in this work it was used in raw state and after acid hydrolysis. According to the results of torque rheometry no decaying of viscosity took place during compoundi
Mat. Res.. Publicado em: 19/01/2017
-
6. Thermo stabilisation of poly (butylene adipate-co-terephthalate)
Abstract Poly (butylene adipate-co-terephthalate) - PBAT is a synthetic biodegradable polymer commonly used for plastic film production from neat polymer or nanocomposites. The PBAT is submitted to high temperatures and shear rate during its processing. In the present study, the thermo stabilisation of PBAT by the addition of two types of stabilisers was stu
Polímeros. Publicado em: 14/06/2016
-
7. Biodegradation Study of a Novel Poly-Caprolactone-Coffee Husk Composite Film
Abstract Plastic disposal is a worldwide issue due to its long degradation time. Environmentally degradable polymers (EDPs) have received considerable attention because of their faster degradation. However, the use of EDPs is limited by high cost and restricted properties. The incorporation of organic fillers is an alternative to reduce cost while increasing
Mat. Res.. Publicado em: 13/05/2016
-
8. Extraction and Characterization of Polyhydroxybutyrates (PHB) from Bacillus thuringiensisKSADL127 Isolated from Mangrove Environments of Saudi Arabia
ABSTRACTPolyhydroxybutyrate (PHB) is a renowned biodegradable plastic that do not release any toxins or residues in the environment like petroleum based plastics. In the present study, 50 bacteria isolated from mangrove niche, Saudi Arabia, were screened for maximum PHB production. All the 50 strains showed positive for PHB production, of which one strain sh
Braz. arch. biol. technol.. Publicado em: 2015-10
-
9. EXTRAÇÃO DE POLI(3-HIDROXIBUTIRATO), PRODUZIDO POR Cupriavidus necator, COM CARBONATO DE PROPILENO
The environmental impact of plastic waste has attracted worldwide attention. Amid the current context of increasing concern for the environment, biodegradable plastics have been widely studied as a replacement for synthetic plastics. Poly(3-hydroxybutyrate) (P(3HB)) is a biopolymer stored as an intracellular energy and reserve source in many microorganisms.
Quím. Nova. Publicado em: 2015-02
-
10. Optimization of biodegradable plastic production on sugar cane molasses in Enterobacter sp. SEL2
Contaminated environments have a large number of bacteria which can accumulate PHA as their energy reserves. Out of 54 isolated bacterial strains from three groups of contaminated sites 48 were found PHA positive. The sites were grouped on the basis of the type of carbon sources i.e. sugars, fatty acids and much diverse type. Strains MFD5, MFD11, UML3, USL2,
Braz. J. Microbiol.. Publicado em: 2014-06
-
11. Mulch materials in processing tomato: a multivariate approach
Mulch materials of different origins have been introduced into the agricultural sector in recent years alternatively to the standard polyethylene due to its environmental impact. This study aimed to evaluate the multivariate response of mulch materials over three consecutive years in a processing tomato (Solanum lycopersicon L.) crop in Central Spain. Two bi
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-08
-
12. Starch/polyester films: simultaneous optimisation of the properties for the production of biodegradable plastic bags
Blends of starch/polyester have been of great interest in the development of biodegradable packaging. A method based on multiple responses optimisation (Desirability) was used to evaluate the properties of tensile strength, perforation force, elongation and seal strength of cassava starch/poly(butylene adipate-co-terephthalate) (PBAT) blown films produced vi
Polímeros. Publicado em: 20/02/2013