Cellulose fibre-cellulose acetate hybrid composites with nanosilica

2014 ◽  
Vol 34 (2) ◽  
pp. 141-144 ◽  
Author(s):  
Chaowei Pang ◽  
Robert Shanks ◽  
Fugen Daver
Keyword(s):  
Cellulose Acetate ◽  
Hybrid Composites ◽  
Cellulose Fibre ◽  
Renewable Resource ◽  
Solution Casting ◽  
High Modulus ◽  
Compression Moulding ◽  
Cellulose Fibres ◽  
Structural Applications

Abstract Biocomposites incorporating cellulose fibres, a renewable resource, have high modulus and strength and flexibility suitable for structural applications. Solution casting, ultrasonication, and compression moulding methods were used to prepare the specimens. Results show that plasticiser indeed improved the flexibility of the composite and adding fillers further enhanced the performance of the composite.

WIELAND DURO TUNGSTEN

Alloy Digest ◽  
2020 ◽  
Vol 69 (10) ◽  
Keyword(s):  
Melting Point ◽  
Physical Properties ◽  
Tensile Properties ◽  
Modulus Of Elasticity ◽  
Radiation Shielding ◽  
High Melting ◽  
High Modulus ◽  
High Melting Point ◽  
Structural Applications ◽  
Very High

Abstract Wieland Duro Tungsten is unalloyed tungsten produced from pressed-and-sintered billets. The high melting point of tungsten makes it an obvious choice for structural applications exposed to very high temperatures. Tungsten is used at lower temperatures for applications that can benefit from its high density, high modulus of elasticity, or radiation shielding capability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on machining. Filing Code: W-34. Producer or source: Wieland Duro GmbH.

scholarly journals Improvement of Performance Profile of Acrylic Based Polyester Bio-Composites by Bast/Basalt Fibers Hybridization for Automotive Applications

2021 ◽  
Vol 5 (4) ◽  
pp. 100
Author(s):  
Anjum Saleem ◽  
Luisa Medina ◽  
Mikael Skrifvars
Keyword(s):  
Hybrid Composites ◽  
Flexural Modulus ◽  
Basalt Fiber ◽  
Fiber Composites ◽  
Fiber Reinforced ◽  
Basalt Fibers ◽  
Bast Fiber ◽  
Bast Fibers ◽  
Resin Impregnation ◽  
Structural Applications

New technologies in the automotive industry require lightweight, environment-friendly, and mechanically strong materials. Bast fibers such as kenaf, flax, and hemp reinforced polymers are frequently used composites in semi-structural applications in industry. However, the low mechanical properties of bast fibers limit the applications of these composites in structural applications. The work presented here aims to enhance the mechanical property profile of bast fiber reinforced acrylic-based polyester resin composites by hybridization with basalt fibers. The hybridization was studied in three resin forms, solution, dispersion, and a mixture of solution and dispersion resin forms. The composites were prepared by established processing methods such as carding, resin impregnation, and compression molding. The composites were characterized for their mechanical (tensile, flexural, and Charpy impact strength), thermal, and morphological properties. The mechanical performance of hybrid bast/basalt fiber composites was significantly improved compared to their respective bast fiber composites. For hybrid composites, the specific flexural modulus and strength were on an average about 21 and 19% higher, specific tensile modulus and strength about 31 and 16% higher, respectively, and the specific impact energy was 13% higher than bast fiber reinforced composites. The statistical significance of the results was analyzed using one-way analysis of variance.

Characterisation of the microstructure and deformation of high modulus cellulose fibres

Polymer ◽  
2003 ◽  
Vol 44 (19) ◽  
pp. 5901-5908 ◽  
Author(s):  
S.J. Eichhorn ◽  
R.J. Young ◽  
R.J. Davies ◽  
C. Riekel
Keyword(s):  
High Modulus ◽  
Cellulose Fibres

Behavior of epoxy reinforced banana glass fiber hybrid composite with nanoclay interference

2021 ◽  
pp. 095440622110357
Author(s):  
Sudhagar M ◽  
Kannan TK ◽  
Benjamin Lazarus S ◽  
Rajasekar R ◽  
Sachin S Raj
Keyword(s):  
Glass Fiber ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Wear Behavior ◽  
Hybrid Nanocomposites ◽  
Compression Moulding ◽  
Banana Fiber ◽  
Optimum Result ◽  
Character Study ◽  
Novel Material

Recent years, Polymer matrix hybrid composites have a greater attention in industry and research due to growing demand for versatile applications. The present work focused on the development of epoxy based hybrid nanocomposites. Nanoclay is another novel material that is widely used in the research. In this investigation, nanoclay dispersed hybrid composite materials has been studied for mechanical and wear behavior. Glass fiber and banana fiber combined epoxy laminates (EGB) were reinforced with nanoclay at different weight fractions of 2%, 4%, 6%, and 8% using compression moulding. The enhanced properties of the nanoclay hybrid composites were analyzed with other specimens. Water absorption character study was also conducted. Morphological study was performed using Scanning Electron Microscope. It was observed that an optimum result attained with 4 wt% nanoclay reinforced composite with an increase in tensile strength of 8.62%, flexural strength of 30.19%, and impact strength of 48.15% when compared to EGB. Further the wear resistance of 4 wt% nanoclay hybrid composite showed an increase of 19.4% than the EGB composite.

Lightweight Materials for Mooring Lines of Deepwater Tension Leg Platforms

1984 ◽  
Vol 21 (03) ◽  
pp. 234-241
Author(s):  
Mamdouh M. Salama
Keyword(s):  
Carbon Fiber ◽  
Water Depth ◽  
Hybrid Composites ◽  
Medium Size ◽  
Mooring System ◽  
Basic Design ◽  
High Modulus ◽  
Mooring Lines ◽  
Lightweight Materials ◽  
Design Requirements

The design of a mooring system for tension leg platforms (TLPs) becomes more complicated as water depth increases. The use of steel mooring lines requires complicated tensioning, handling, and flotation systems. This paper discusses the basic design requirements for the TLP mooring system and identifies several advanced fiber-reinforced lightweight materials as alternatives to steel. High-modulus carbon fiber/KevlarcircleR fiber hybrid composites and Kevlar ropes appear to offer the optimum mooring systems for TLPs used in the development of large and medium-size reservoirs, respectively.

Effect of Agro Waste Saline Treated Cellulose Nanofiller on Mechanical, Visco Elastic and Thermal Behaviour of Epoxy Nanocomposites

2021 ◽  
Author(s):  
S. Thanga Kasi Rajan ◽  
Nagarajan K J ◽  
A N BALAJI ◽  
K. Sathick Basha
Keyword(s):  
Landfill Gas ◽  
Thermal Characteristics ◽  
Nano Composites ◽  
Mechanical Interlocking ◽  
Compression Moulding ◽  
Empty Fruit Bunches ◽  
Structural Applications ◽  
Novel Strategy ◽  
Landfill Gas Emissions ◽  
The Impact

Abstract A comparably novel strategy to develop sustainable nano composites is presented, in which cellulose nano fibers (CNFs) reinforcement derived from red banana empty fruit bunches is employed to solve issues related to landfill gas emissions and the simultaneous utilisation of organic wastes. The impact of saline treatment on the physicochemical, thermal, and morphological of CNFs is examined. Compression moulding was utilised to make five different loading levels of SCNFs reinforced epoxy nano composites. The resultant nano composites were evaluated by using mechanical and thermal analysis. The incorporation of SCNFs with a large surface area in epoxy allowed for mechanical interlocking and improved mechanical and thermal characteristics. The composite with the highest strengths and thermal stability was discovered to include 3% wt.% SNCFs. This research shows that combining epoxy with SCNFs has the potential to reduce agro waste while also developing sustainable nano composites with qualities that might be valuable for light-weight structural applications.

Polymer/Clay Nanocomposites Produced by Dispersing Layered Silicates in Thermoplastic Melts

2021 ◽  
pp. 1002-1030
Author(s):  
S. S. Pesetskii ◽  
S. P. Bogdanovich ◽  
V. N. Aderikha
Keyword(s):  
Polymer Blends ◽  
Hybrid Composites ◽  
Structural Features ◽  
Layered Silicates ◽  
Clay Nanocomposites ◽  
Structure And Properties ◽  
High Modulus ◽  
Thermoplastic Polymers ◽  
Technological Factors ◽  
Melt Compounding

Results of the studies of technology, structural features and properties of polymer/clay nanocomposites (n-PCM) prepared by melt compounding of thermoplastic polymers are systematized. Special attention is given to the analysis of the effect of nanoclays modification with surfactants on properties of nanocomposites and preparation features of nanomaterials based on polar, non-polar thermoplastics and polymer blends. Effect of technological factors and special compounding regimes in the technology of n-PCM with advanced technical characteristics is considered. Results of the original studies of the structure and properties of the hybrid composites, filled by high modulus fibers in addition to nanoclays, are presented.

Improvement of mechanical and thermal properties of hybrid composites through addition of halloysite nanoclay for light weight structural applications

2020 ◽  
pp. 152808372093662
Author(s):  
K C Nagaraja ◽  
S Rajanna ◽  
G S Prakash ◽  
G Rajeshkumar
Keyword(s):  
Thermal Properties ◽  
Composite Laminates ◽  
Morphological Analysis ◽  
Hybrid Composites ◽  
Mechanical And Thermal Properties ◽  
Light Weight ◽  
Building Structures ◽  
Suitable Alternative ◽  
Structural Applications ◽  
Infusion Technique

In this work the effect of stacking sequence of Carbon (C)/Glass (G) fibers and halloysites addition (1, 3 and 5 wt.%) on the mechanical and thermal properties of the hybrid composites were explored. The composite laminates were prepared by using Vacuum Assisted Resin Infusion Technique (VARIT). The outcomes disclosed that the hybrid composites having sequence of C2G3C2 (2-Carbon/3-Glass/2-Carbon layers) showed better overall properties. Moreover, the addition of halloysites enhanced the mechanical and thermal properties of the C2G3C2 hybrid composites. In particular, the hybrid composites added with 3 wt.% of halloysites showed higher overall properties among the other hybrid composites investigated. Finally, the morphological analysis was performed on the fractured surface of mechanical tested composites to study the failure mechanisms occurred. Based on the obtained results it can be concluded that the C2G3C2 hybrid composites added with 3 wt.% of halloysite could be a suitable alternative light weight material for automobile, aerospace and building structures.

scholarly journals Piezo-Sensitive Fabrics from Carbon Black Containing Conductive Cellulose Fibres for Flexible Pressure Sensors

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5150
Author(s):  
Julia Ullrich ◽  
Martin Eisenreich ◽  
Yvonne Zimmermann ◽  
Dominik Mayer ◽  
Nina Koehne ◽  
...  
Keyword(s):  
Carbon Black ◽  
Pressure Sensors ◽  
Cellulose Fibre ◽  
Nonwoven Material ◽  
Regenerated Cellulose ◽  
Textile Processing ◽  
Cellulose Fibres ◽  
Decisive Importance ◽  
Flexible Pressure Sensors ◽  
Regenerated Cellulose Fibres

The design of flexible sensors which can be incorporated in textile structures is of decisive importance for the future development of wearables. In addition to their technical functionality, the materials chosen to construct the sensor should be nontoxic, affordable, and compatible with future recycling. Conductive fibres were produced by incorporation of carbon black into regenerated cellulose fibres. By incorporation of 23 wt.% and 27 wt.% carbon black, the surface resistance of the fibres reduced from 1.3 × 1010 Ω·cm for standard viscose fibres to 2.7 × 103 and 475 Ω·cm, respectively. Fibre tenacity reduced to 30–50% of a standard viscose; however, it was sufficient to allow processing of the material in standard textile operations. A fibre blend of the conductive viscose fibres with polyester fibres was used to produce a needle-punched nonwoven material with piezo-electric properties, which was used as a pressure sensor in the very low pressure range of 400–1000 Pa. The durability of the sensor was demonstrated in repetitive load/relaxation cycles. As a regenerated cellulose fibre, the carbon-black-incorporated cellulose fibre is compatible with standard textile processing operations and, thus, will be of high interest as a functional element in future wearables.

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