Manufacturing and properties of cotton and jute fabrics reinforced epoxy and PLA composites

2018 ◽  
Vol 32 (19) ◽  
pp. 1840084 ◽  
Author(s):  
Jieng-Chiang Chen ◽  
Jian-Cheng Lin
Keyword(s):  
Epoxy Resin ◽  
Brittle Failure ◽  
Natural Fiber ◽  
Woven Fabrics ◽  
Thermoplastic Composites ◽  
Composite Panels ◽  
Bending Tests ◽  
Jute Fabrics ◽  
Film Method ◽  
Thermosetting Epoxy

This paper studies the effects of plain-woven fabrics of jute and cotton, used as reinforcements, on the mechanical properties of composite panels prepared using epoxy and polylactic acid (PLA) resins as matrix materials. Two different composites were prepared in the current study — natural fiber fabrics reinforced thermosetting epoxy resin and the same fabrics reinforced thermoplastic PLA resin. Two methods were used to manufacture these composites. The thermosetting composites were manufactured by impregnating the epoxy resin with the fabrics by hand lamination. On the other hand, the resin film method was used to manufacture the thermoplastic composites. Tensile, compression and 3-point bending tests were performed on the composite panels. The experimental results indicated that the compressive strengths of cotton/PLA and cotton/epoxy composites are approximately equivalent. The jute-based composites exhibited brittle failure in the tensile test. Furthermore, the 3-point-bending break strength of the cotton/PLA composites was higher than that of the jute/PLA composites.

Thermal Stability of Natural Fibers via Thermoset Coating for Application in Engineering Thermoplastics

2019 ◽  
Vol 809 ◽  
pp. 433-438 ◽  
Author(s):  
Natalie Vellguth ◽  
Tanja Rudeck ◽  
Madina Shamsuyeva ◽  
Franz Renz ◽  
Hans Josef Endres
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Epoxy Resin ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Thermoplastic Composites ◽  
Processing Temperature ◽  
Scanning Calorimetry ◽  
Flax Fibers ◽  
Thermal Stability Of

An effective integration of natural fibers into engineering thermoplastics requires sufficient thermal stability of natural fibers during processing, since melting temperature of engineering thermoplastics lies above 200 °C. The aim of the work was to protect natural fibers from the heat of the molten thermoplastic via coating with a modified epoxy resin, thus enabling manufacture of natural fiber-reinforced engineering thermoplastic composites with minimized thermal degradation of the fibers. Processing temperature comprised the range of engineering thermoplastic polyamide 6 (PA6), which was 225 °C. Flax fabrics were spray coated with partially bio-based epoxy resin and incorporated via hot press technique into a PA6 matrix. The composite samples including spray coated flax fibers as well as the reference flax fibers without coating were characterized with regard to their mechanical properties, namely bending and tensile tests, thermal properties with differential scanning calorimetry (DSC) as well as thermogravimetric analysis (TGA) and optical via scanning electron microscopy (SEM) and computer tomography (CT). The results show that this approach enables manufacture of composites with reproducible mechanical properties, i.e. bending and tensile properties as well as enhanced thermal stabilities.

scholarly journals Effect of Rot-, Fire-, and Water-Retardant Treatments on Jute Fiber and Their Associated Thermoplastic Composites: A Study by FTIR

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2571
Author(s):  
Sweety Shahinur ◽  
Mahbub Hasan ◽  
Qumrul Ahsan ◽  
Nayer Sultana ◽  
Zakaria Ahmed ◽  
...  
Keyword(s):  
Product Development ◽  
Environmental Sustainability ◽  
Mechanical Performance ◽  
Natural Fiber ◽  
Jute Fiber ◽  
Thermoplastic Composites ◽  
Ftir Analysis ◽  
Renewable Materials ◽  
Weight Percentage ◽  
Chemical Treatments

Natural renewable materials can play a big role in reducing the consumption of synthetic materials for environmental sustainability. Natural fiber-reinforced composites have attracted significant research and commercial importance due to their versatile characteristics and multi-dimensional applications. As the natural materials are easily rotten, flammable, and moisture absorbent, they require additional chemical modification for use in sustainable product development. In the present research, jute fibers were treated with rot-, fire-, and water-retardant chemicals and their corresponding polymer composites were fabricated using a compression molding technique. To identify the effects of the chemical treatments on the jute fiber and their polymeric composites, a Fourier transformed infrared radiation (FTIR) study was conducted and the results were analyzed. The presence of various chemicals in the post-treated fibers and the associated composites were identified through the FTIR analysis. The varying weight percentage of the chemicals used for treating the fibers affected the physio-mechanical properties of the fiber as well as their composites. From the FTIR analysis, it was concluded that crystallinity increased with the chemical concentration of the treatment which could be contributed to the improvement in their mechanical performance. This study provides valuable information for both academia and industry on the effect of various chemical treatments of the jute fiber for improved product development.

Mechanical performance and moisture absorption of various natural fiber reinforced thermoplastic composites

2013 ◽  
Vol 130 (2) ◽  
pp. 969-980 ◽  
Author(s):  
Nicole-Lee M. Robertson ◽  
John A. Nychka ◽  
Kirill Alemaskin ◽  
John D. Wolodko
Keyword(s):  
Moisture Absorption ◽  
Mechanical Performance ◽  
Natural Fiber ◽  
Thermoplastic Composites ◽  
Fiber Reinforced

Assessing of Mechanical Properties of Natural Fiber Reinforced Polymer Matrix Hybrid Composites

2015 ◽  
Vol 766-767 ◽  
pp. 199-204 ◽  
Author(s):  
Kumar Jayachandran Nirmal ◽  
D. Premkumar
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Natural Fiber ◽  
Volume Fraction ◽  
Hybrid Composites ◽  
Natural Fibres ◽  
Fiber Reinforced Polymer ◽  
Resin Matrix ◽  
Reinforced Polymer ◽  
Individual Type

An experimental analysis has been carried out to investigate the mechanical properties of composites reinforced by sisal, coir, and banana fibres into epoxy resin matrix. The natural fibres were extracted by retting and manual processes. The composites fabricated by epoxy resin and reinforcement in the hybrid combination of Sisal-Banana and Sisal-Coir with the volume fraction of fibres varying from 5% to 30%. It has been identified that the mechanical properties increase with the increase of volume fraction of fibres to a certain extent and then decreases. The hybridization of the reinforcement in the composite shows greater mechanical properties when compared to individual type of natural fibres reinforced. For all the composites tested, the tensile strength of the composite increased up to 25% of volume fraction of the fibres and further for the increase in the volume fraction of fibre the mechanical properties were decreased. As same as tensile properties, the flexural and impact strength also increased linearly up to 25% of volume fraction of fibres and further for the increase in the volume fraction of fibre the mechanical properties were slightly decreased. Key Words: Sisal, Banana, Coir, Epoxy, Hybrid composite.

Natural Fiber Reinforced Thermoplastic Composites

2017 ◽  
pp. 1-38
Author(s):  
Omar Faruk ◽  
Birat KC ◽  
Ahmed Sobh ◽  
Jimi Tjong ◽  
Mohini Sain
Keyword(s):  
Natural Fiber ◽  
Thermoplastic Composites ◽  
Fiber Reinforced

scholarly journals Synthesis of Co(II), Ni(II) and Cu(II) Complexes from Schiff base Ligand and Reactivity Studies with Thermosetting Epoxy Resin

2011 ◽  
Vol 32 (5) ◽  
pp. 1613-1619 ◽  
Author(s):  
B. Lakshmi ◽  
K.N. Shivananda ◽  
Gouda Avaji Prakash ◽  
Krishna Reddy K. Rama ◽  
K.N. Mahendra
Keyword(s):  
Schiff Base ◽  
Epoxy Resin ◽  
Schiff Base Ligand ◽  
Thermosetting Epoxy

MECHANICAL CHARACTERIZATION OF GFRP/CFRP/NATURAL FIBER LAMINATED IN EPOXY RESIN COMPOSITE

2019 ◽  
Vol 16 ◽  
pp. 934-938
Author(s):  
S. Sivasaravanan ◽  
V.K. Bupesh Raja ◽  
K. Avinash Babu ◽  
B. Chandra Mouli
Keyword(s):  
Epoxy Resin ◽  
Mechanical Characterization ◽  
Natural Fiber ◽  
Resin Composite ◽  
Epoxy Resin Composite

scholarly journals Influence of Coupling Agent in Mechanical, Physical and Thermal Properties of Polypropylene/Bamboo Fiber Composites: Under Natural Outdoor Aging

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 929 ◽  
Author(s):  
Lety del Pilar Fajardo Cabrera de Lima ◽  
Ruth Marlene Campomanes Santana ◽  
Cristian David Chamorro Rodríguez
Keyword(s):  
Coupling Agent ◽  
Natural Fiber ◽  
Bamboo Fiber ◽  
Thermoplastic Composites ◽  
Natural Ageing ◽  
Total Period ◽  
Natural Origin ◽  
Before And After ◽  
Internal Mixer ◽  
Synthetic Origin

Researches on thermoplastic composites using natural fiber as reinforcement are increasing, but studies of durability over time are scarce. In this sense the objective of this study is to evaluate changes in the properties of polypropylene/bamboo fiber (PP/BF) composite and the influence of the use of coupling agent (CA) in these composites after natural ageing. The PP/BF (70/30 wt) composites and 3% wt CA (citric acid from natural origin and maleic anhydride grafted polypropylene from petrochemical origin) were prepared by using an internal mixer chamber and then injection-molded. The samples were exposed to natural weathering for a total period of 12 months and characterized before and after exposure. All exposed composites experienced a decrease in their properties, however, the use of CA promoted more stability; in mechanical properties, the composites with CA showed lower loss about 23% in Young′s modulus, 18% in tensile stress at break, and 6% in impact strength. This behavior was similar in thermal and physical properties, the result for the CA of natural origin being similar to that of synthetic origin. These results indicate that the use of a CA may promote higher interaction between the fiber and the polymer. In addition, the CAs of organic origin and synthetic origin exhibited similar responses to natural ageing.

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