scholarly journals A Preliminary Study: The Influence of Alkali Treatment on Physical and Mechanical Properties of Coir Fiber

2013 ◽  
Vol 2 (4) ◽  
Author(s):  
R.Hari Setyanto ◽  
Kuncoro Diharjo ◽  
Prabang Setyono ◽  
I Made Miasa
Keyword(s):  
Mechanical Properties ◽  
Alkali Treatment ◽  
Physical And Mechanical Properties ◽  
Coir Fiber ◽  
Preliminary Study

A preliminary study on physical and mechanical properties of particleboard made from palm oil-treated rubberwood particles

2019 ◽  
Vol 16 (1) ◽  
pp. 27-30 ◽  
Author(s):  
Paiman Bawon ◽  
Seng Hua Lee ◽  
Nurul Fatiha Osman ◽  
Muhamad Suriadi Mohd Atkhar ◽  
Zaidon Ashaari
Keyword(s):  
Mechanical Properties ◽  
Palm Oil ◽  
Physical And Mechanical Properties ◽  
Preliminary Study

HDPE- Coir composites–fabrication, process parameters and properties

2018 ◽  
Vol 2 (3) ◽  
Author(s):  
Md. Sahadat Hossain 3 ◽  
Md. Nazrul Islam 1* ◽  
M A Gafur 2
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Mechanical Stability ◽  
Heating Temperature ◽  
Testing Machine ◽  
Physical And Mechanical Properties ◽  
Interfacial Bonding ◽  
Coir Fiber ◽  
Melt Mixing ◽  
Fiber Addition

The composites of biodegradable high density polypropylene (HDPE) reinforced with short coir fiber were prepared by melt mixing followed by hot press molding. The effect of fiber addition on some physical and mechanical properties was evaluated. Different process parameters (e.g. mixing time, heating temperature and time, cooling time etc.) were established for good sample preparation The effects of fiber addition on some physical and mechanical properties were evaluated. The mechanical properties were studied via Universal Testing Machine (UTM). The density was increased with the increase of fiber addition. The tensile strength (TS) of fabricated product increased with the increase of fiber addition up to 10% (by wt.) and then decreased continuously. The elongation of fabricated composites was decreased with the increase of fiber addition continuously. The changes in the mechanical properties were broadly related to the accompanying interfacial bonding of HDPE coir composites (HDPECC). To observe the hydrophilicity of the prepared composites was evaluated by the water uptake properties. The interfacial bonding of the fiber and matrix of the coir fiber reinforced composites was studied via scanning electron microscope. It revealed that the introduction of short coir fiber led to a slightly improved mechanical stability of PP- Coir composites. 

SYNTHESIS AND CHARACTERISATION OF COIR FIBER REINFORCED EPOXY COMPOSITES FROM PUNNAL OIL

2015 ◽  
Vol 1 (01) ◽  
pp. 33-41 ◽  
Author(s):  
T.J. Sasikala ◽  
Dr A Malar Retna ◽  
Robin Kumar Samuel
Keyword(s):  
Mechanical Properties ◽  
Acetic Acid ◽  
Natural Fiber ◽  
Oxirane Oxygen ◽  
Physical And Mechanical Properties ◽  
Coir Fiber ◽  
Oxygen Donor ◽  
Ft Ir ◽  
Layer Chromatography ◽  
Composite Samples

Vegetable oil is readily available and inexpensive, can be used to synthesise various types of polymers. In our present study, epoxidised punnal oil has been synthesised from punnal oil via peroxy acetic acid generated ‘insitu’ by treating acetic acid with hydrogen peroxide as oxygen donor. The epoxidation is catalysed by using sulphuric acid. The epoxidation is confirmed by iodine value, oxirane oxygen analysis, fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) and thin layer chromatography (TLC) analysis.Natural fibers such as jute, sisal, banana, rice husk etc are locally available in abundance and have excellent physical and mechanical properties and can be used more effectively in the development of composite materials for various applications. Epoxy composite samples are prepared from the natural fiber with different ratios using triethylamine hardener and pthaleic anhydride. The mechanical properties viz. tensile strength and the physical properties observed are discussed in detail

Effect of surface treatment on the physical and mechanical properties of injection molded poly(lactic acid)‐coir fiber biocomposites

2018 ◽  
Vol 40 (6) ◽  
pp. 2132-2141 ◽  
Author(s):  
M.E. González‐López ◽  
A.A. Pérez‐Fonseca ◽  
R. Manríquez‐González ◽  
M. Arellano ◽  
D. Rodrigue ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Surface Treatment ◽  
Physical And Mechanical Properties ◽  
Poly Lactic Acid ◽  
Coir Fiber ◽  
Injection Molded ◽  
Effect Of Surface

Enhancing the mechanical properties of virgin and damaged jute/polypropylene hybrid nonwoven geotextiles via mild alkali treatment of jute fibers

2018 ◽  
Vol 88 (18) ◽  
pp. 2132-2140 ◽  
Author(s):  
Amit Rawal ◽  
Ayush Paharia ◽  
Vijay Kumar
Keyword(s):  
Mechanical Properties ◽  
Poisson’S Ratio ◽  
Sodium Hydroxide Solution ◽  
Alkali Treatment ◽  
Natural Fibers ◽  
Physical And Mechanical Properties ◽  
Cost Effective ◽  
Poisson's Ratio ◽  
Minimal Amount ◽  
Jute Fibers

Nonwoven geotextiles made from hybridization of natural and synthetic fibers can potentially offer distinct advantages in terms of uniformity and improved mechanical properties. To further enhance the mechanical properties of hybrid nonwoven geotextiles, natural fibers such as jute must be treated with a minimal amount of alkali, such that the treatment process becomes scalable, cost-effective and environmentally friendly. Herein, we report a comparative analysis of physical and mechanical properties between the corresponding samples of untreated (UT) jute/polypropylene (PP) and mild alkali-treated (MAT) jute/PP nonwoven geotextiles in both virgin and damaged conditions. The constituent jute fibers were treated with 0.5 wt.% of sodium hydroxide solution under ambient temperature conditions for 24 h duration. Such mild treatment of jute fibers with alkali solution resulted in considerable improvement in the mechanical properties of MAT jute/PP nonwoven geotextiles corresponding to the sets of UT jute/PP nonwoven geotextiles. Various types of damage, including circular holes, horizontal cuts, vertical cuts and inclined cuts at an angle of 45°, were artificially induced in hybrid nonwoven geotextiles to investigate the reduction in tensile properties. Further, the Poisson's ratio in virgin and damaged states was determined to make a comparison between the UT and MAT jute/PP nonwoven geotextiles. In general, lower Poisson's ratio values were observed for mechanically damaged MAT jute/PP nonwoven geotextiles corresponding to the samples of UT jute/PP nonwoven geotextiles. Surprisingly, the vertical cuts induced in MAT jute/PP nonwoven geotextiles yielded tensile strength comparable to that of virgin samples.

Physical and mechanical properties of randomly oriented coir fiber–cementitious composites

2014 ◽  
Vol 61 ◽  
pp. 49-54 ◽  
Author(s):  
Özge Andiç-Çakir ◽  
Mehmet Sarikanat ◽  
Hikmet Bahadir Tüfekçi ◽  
Cihan Demirci ◽  
Ümit Halis Erdoğan
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Cementitious Composites ◽  
Coir Fiber
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