scholarly journals Environmentally Friendly Polymers and Polymer Composites

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4892 ◽  
Author(s):  
Rafael Balart ◽  
Nestor Montanes ◽  
Franco Dominici ◽  
Teodomiro Boronat ◽  
Sergio Torres-Giner
Keyword(s):  
Polymer Composites ◽  
Food Packaging ◽  
Fossil Fuels ◽  
Impact Resistance ◽  
Environmentally Friendly ◽  
Cost Effective ◽  
High Volume ◽  
Research Activity ◽  
Reinforcing Fillers ◽  
End Use

In the last decade, continuous research advances have been observed in the field of environmentally friendly polymers and polymer composites due to the dependence of polymers on fossil fuels and the sustainability issues related to plastic wastes. This research activity has become much more intense in the food packaging industry due to the high volume of waste it generates. Biopolymers are nowadays considered as among the most promising materials to solve these environmental problems. However, they still show inferior performance regarding both processability and end-use application. Blending currently represents a very cost-effective strategy to increase the ductility and impact resistance of biopolymers. Furthermore, different lignocellulosic materials are being explored to be used as reinforcing fillers in polymer matrices for improving the overall properties, lower the environmental impact, and also reduce cost. Moreover, the use of vegetable oils, waste derived liquids, and essential oils opens up novel opportunities as natural plasticizers, reactive compatibilizers or even active additives for the development of new polymer formulations with enhanced performance and improved sustainability profile.

Tribology of Natural Fiber Reinforced Polymer Composites

2011 ◽  
Author(s):  
Pradeep L. Menezes ◽  
Pradeep K. Rohatgi ◽  
Michael R. Lovell
Keyword(s):  
Polymer Composites ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Environmentally Friendly ◽  
Cost Effective ◽  
Fiber Reinforced Polymer ◽  
Synthetic Fiber ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites

In recent years, significant academic and industrial research and development has explored novel methods of creating green and environmentally friendly materials for commercial applications. Natural fibers offer the potential to develop lower cost products with better performance, sustainability, and renewability characteristics than traditional materials, particularly in the automotive industry. In this respect, natural fiber reinforced polymer composites have emerged as an environmentally friendly and cost-effective option to synthetic fiber reinforced composites. Hence, in this study, a review of the tribological behavior of natural fiber reinforced polymer composites has been undertaken to better understand their usability for various automotive applications.

•Reinforcing fillers for polymer composites made from nonwoven organic materials

2018 ◽  
Vol 0 (10) ◽  
pp. 9-13
Author(s):  
A. N. Marycheva ◽  
◽  
T. A. Guzeva ◽  
P. M. Pye ◽  
L. Kh. Tun ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Organic Materials ◽  
Reinforcing Fillers

scholarly journals Sustainable Transport in the Danube Region

2021 ◽  
Vol 13 (12) ◽  
pp. 6797
Author(s):  
Peter Mako ◽  
Andrej Dávid ◽  
Patrik Böhm ◽  
Sorin Savu
Keyword(s):  
Water Transport ◽  
Fossil Fuels ◽  
Environmentally Friendly ◽  
Road Transport ◽  
Transport Systems ◽  
Main Question ◽  
Inland Water ◽  
Danube Region ◽  
Inland Water Transport

Sustainability of transport systems is a key issue in transport. The main question is whether high levels of road and railway transport in areas along navigable waterways is an effective solution for this issue. The Danube waterway is an example. Generally, it is not observed that traffic performance is not as high as on the Rhine. This paper deals with the revelation of the available capacity of this waterway based on approximation functions and their comparison with real transport performances. This methodology points to the level of use of waterways. The connection of this model with the production of fossil fuels creates a basis for a case study. The case study in this paper offers a possibility for a sustainable and environmentally friendly transition from road transport to inland water transport on the example of specific transport routes. The main contribution of this paper is a presentation of the application of sustainable models of use transport capacity to increase the share of environmentally friendly and sustainable inland water transport. The conclusion based on the case study and materials is that the available capacity of inland water transport on the Danube could support the transition of traffic performances to sustainable and environmentally friendly means of transport.

Increasing the apparent shear viscosity of polymer composites by uptake of a small amount of water

RSC Advances ◽  
2014 ◽  
Vol 4 (47) ◽  
pp. 24686-24691 ◽  
Author(s):  
Dapeng Wang ◽  
Xiang Wang ◽  
Yuan Yuan ◽  
Weihua Li ◽  
Huiwen Tian ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Shear Viscosity ◽  
Environmentally Friendly

We provided a reversible, simple, inexpensive and environmentally-friendly way to control the rheology of polymer composites.

Preparation and Characterization of Sawdust Derived Bio-Fuel Pellets Depending on "Solid Bridge" Intertwining Action of Hyacinth Fiber

2014 ◽  
Vol 878 ◽  
pp. 450-458
Author(s):  
Ling Jun Kong ◽  
Xiong Fei Zhang ◽  
Shuang Hong Tian ◽  
Ting Liu ◽  
Ya Xiong
Keyword(s):  
Mechanical Properties ◽  
Room Temperature ◽  
Elastic Recovery ◽  
Impact Resistance ◽  
Resistance Index ◽  
Cost Effective ◽  
Environmental Benefits ◽  
Fuel Pellet ◽  
Mass Ratio ◽  
Solid Bridge

Densified biomass pellets named as H/S-BPs were prepared from waste wood sawdust (S) in the presence of water hyacinth fiber (H) as solid bridge under room temperature and 6 MPa lower than in the previous study. Mechanical properties including relaxed density (ρr), resiliency (R), abrasion resistance (AR) and impact resistance index (IRI) were evaluated. Results showed that adding H greatly reduced negative effect of resiliency on the mechanical properties of H/S-BPs during storage. For example, H/S-BPs compressed at 6 MPa in an H/S mass ratio of 1 to 3 presented lower resiliency of 10% and higher relaxed density of 1.04 kg dm-3 than pellets without H fiber. This is due to the intertwining action of H fiber, what fabricates solid bridge, replacing the bonding creating by applying high pressure to resist the disruptive force caused by elastic recovery. Thus, compression of waste H and S in a mass ratio of 1 to 3 at room temperature under 6 MPa is a cost-effective process to produce densified sustainable bio-fuel pellet as well as dispose waste S and H, combining the economical and environmental benefits.

Cost-effective, high-volume molecular beam epitaxy using a multi 6-in wafer reactor

2001 ◽  
Vol 227-228 ◽  
pp. 143-149
Author(s):  
Larry Leung ◽  
Damian Davison ◽  
Arthur Cornfeld ◽  
Frederick Towner ◽  
Dave Hartzell
Keyword(s):  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Cost Effective ◽  
High Volume

Hemp Fiber Reinforced Composites: Morphological and Mechanical Properties

2011 ◽  
Vol 332-334 ◽  
pp. 121-125
Author(s):  
Xing Mei Guo ◽  
Yi Ping Qiu
Keyword(s):  
Polymer Composites ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Hemp Fiber ◽  
Plant Fibers ◽  
Natural Plant ◽  
Reinforcing Fillers

The use of natural plant fibers as reinforcing fillers in fiber-polymer composites has drawn much interest in recent years. Natural plant fibers as reinforcing fillers have several advantages over inorganic fillers such as glass fibers; they are abundant, readily available, renewable, inexpensive, biodegradable, of low density, and of high specific strength. Hemp fibers are one of the most attractive natural plant fibers for fiber-reinforced composites because of their exceptional specific stiffness. In this review, we summarize recent progress in developments of the hemp fiber reinforced composites such as hemp fiber reinforced unsaturated polyester (UPE), hemp fiber reinforced polypropylene (PP), hemp fiber reinforced epoxy composites, and so on, illustrate with examples how they work, and discuss their intrinsic fundamentals and optimization designs. We are expecting the review to pave the way for developing fiber-polymer composites with higher strength.

Development of bamboo polymer composites with improved impact resistance

2021 ◽  
pp. 096739112110093
Author(s):  
RM Abhilash ◽  
GS Venkatesh ◽  
Shakti Singh Chauhan
Keyword(s):  
Impact Strength ◽  
Flexural Strength ◽  
Polymer Composites ◽  
Impact Resistance ◽  
Adverse Impact ◽  
Matrix Polymer ◽  
Bamboo Fibre ◽  
The Matrix ◽  
Major Criterion ◽  
Pp Composites

Reinforcing thermoplastic polymers with natural fibres tends to improve tensile and flexural strength but adversely affect elongation and impact strength. This limits the application of such composites where toughness is a major criterion. In the present work, bamboo fibre reinforced polypropylene (PP) composites were prepared with bamboo fibre content varying from 30% to 50% with improved impact resistance. Homopolymer and copolymer PP were used as the matrix polymer and an elastomer was used (10% by wt.) as an additive in the formulation. Copolymer based composites exhibited superior elongation and impact strength as compared to homopolymer based composites. The adverse impact of elastomer on tensile and flexural strength was more pronounced in homopolymer based composites. The study suggested that the properties of the bamboo composites can be tailored to suit different applications by varying reinforcement and elastomer percentage.

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