Effect of Alkali Treatment on the Tensile Behavior and Structure of Betel Nut (Areca catechu) Husk Fiber

2013 ◽  
Vol 701 ◽  
pp. 239-242
Author(s):  
L. Yusriah ◽  
S.M. Sapuan ◽  
E.S. Zainudin ◽  
Jaafar Mustapha Mariatti
Keyword(s):  
Tensile Strength ◽  
Tensile Test ◽  
Tensile Properties ◽  
Alkali Treatment ◽  
Fiber Surface ◽  
Tensile Behavior ◽  
Test Method ◽  
Betel Nut ◽  
Elongation At Break ◽  
Areca Catechu

The tensile properties of untreated and alkali treated betel nut husk fiber were investigated using single fiber tensile test method and the fiber structures were observed using SEM technique. The alkali treatment aids in the removal of lignin, hemicellullose and non-cellulosic components such as wax and pectin on the betel nut husk fiber surface, which yields bigger lumen size and rougher betel nut husk fiber surface. The alkali treatment enhanced the elongation at break of betel nut husk fiber but at the expense of tensile strength and Young's modulus.

scholarly journals Influence of Surface Modification on Physical, Mechanical, and Morphological Properties of Natural Single Areca catechu Fiber

2019 ◽  
Vol 35 (2) ◽  
pp. 605-610
Author(s):  
Raghu Patel G. Ranganagowda ◽  
Sakshi Shantharam Kamath ◽  
Ravi Kumar Chandrappa ◽  
Basavaraju Bennehalli
Keyword(s):  
Tensile Strength ◽  
Alkali Treatment ◽  
Fiber Surface ◽  
Morphological Properties ◽  
Alternative Source ◽  
Elongation At Break ◽  
Areca Catechu ◽  
Potential Alternative ◽  
Treated Fiber ◽  
Surface Modified

In the present study, fibers extracted from empty areca fruit were surface modified by giving chemical treatment with 2% NaOH solutionat laboratory temperature to investigate the effect of alkali treatment onphysical, mechanical, and morphological properties of arecafiber. Tensile strength and Young’s modulus of areca fiber found to decrease with alkali treatment. But improvement in elongation at break of the fiber was observed for alkali treated fiber due to elimination of lignin and hemicelluloses from the fiber surface upon alkali treatment. The results proved that the natural areca fiber is a potential alternative source for strengthening the polymer composite industries.

scholarly journals Tensile Properties and Microstructure of Single-Cellulosic Bamboo Fiber Strips after Alkali Treatment

Fibers ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 26 ◽  
Author(s):  
Abeer Adel Salih ◽  
Rozli Zulkifli ◽  
Che Husna Azhari
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Alkali Treatment ◽  
Tensile Modulus ◽  
Fiber Surface ◽  
Tensile Tests ◽  
Bamboo Fiber ◽  
Alkali Concentration ◽  
Soaking Time ◽  
Cellulosic Fiber

The study systematically explored the effect of alkali concentration and soaking time on the microstructure and tensile properties of single-cellulosic Buluh Semantan. Scanning electron microscopy and tensile tests were conducted to determine the effects of different alkali treatments on the properties of the single-cellulosic bamboo fibers. In particular, the effects of NaOH concentration and soaking time on the tensile properties of the single-cellulosic bamboo fiber were investigated. The single-cellulosic bamboo fiber was immersed in 2, 4, 6, and 8 wt.% aqueous NaOH solutions for soaking times of 1, 3, 6, 12, 18, and 24 h. The tensile properties of the fiber increased after each alkali treatment. The alkali concentration and soaking time significantly affected the fiber properties. The ultimate tensile strength of the single-cellulosic Buluh Semantan treated with 2 wt.% NaOH for 12 h decreased to 214 MPa relative to the fibers that experienced water retting. The highest tensile strength herein was 356.8 MPa for the single-cellulosic fiber that was soaked for 12 h in 4 wt.% NaOH. Comparatively, the tensile strength of the single-cellulosic bamboo fiber that was soaked for 12 h in 8 wt.% NaOH was 234.8 MPa. The tensile modulus of the single-cellulosic fiber was 12.06 GPa after soaking in 8 wt.% NaOH for 18 h, indicating that a strong alkali treatment negatively affected the stiffness and suitability for use of the fibers in applications. The topography of the fiber surface became much rougher after the alkali treatments due to the removal of hemicellulose and other surface impurities. The alkali treatments substantially changed the morphology of the fiber surface, suggesting an increase in wettability.

Molding Conditions and Mechanical Properties of Jute Fiber Reinforced Composite

2010 ◽  
Vol 452-453 ◽  
pp. 261-264 ◽  
Author(s):  
Kenichi Takemura
Keyword(s):  
Tensile Strength ◽  
Tensile Test ◽  
Tensile Properties ◽  
Jute Fiber ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Molding Temperature ◽  
High Fiber ◽  
Reinforced Composite ◽  
Molding Condition

In this study, molding condition and tensile properties of jute fiber reinforced composite were examined. PVA resin was used as matrix which is one of the biodegradable resin. Before tensile test, specimens have an offset twist. The tensile test after twist of jute fiber cloth was also conducted. As a result, following results were obtained. In the case of jute fiber cloth, the effect of twist deformation to tensile strength is not great. The reason is thought that the fiber cloth is flexible and easy to deform in this form. In the case of composite, molding time has an effect to the tensile properties. As the molding temperature increases, the tensile strength increases. So, the diffraction intensity was measured. The reason of effect to the strength is thought that the crystallization occurred in the matrix. When the molding temperature is so high, fiber has degradation, and the strength of the composite decreases. As the degree of twist increases, the strength decreases. The reasons are the delamination between layers and debonding between fiber and matrix.

Tensile Properties of Polypropylene/Cocoa Pod Husk Biocomposites: Effect of Maleated Polypropylene

2013 ◽  
Vol 747 ◽  
pp. 645-648 ◽  
Author(s):  
Koay Seong Chun ◽  
Salmah Husseinsyah ◽  
Hakimah Osman
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Tensile Modulus ◽  
Melt Blending ◽  
Elongation At Break ◽  
Maleated Polypropylene ◽  
Matrix Interaction ◽  
Cocoa Pod Husk ◽  
Blending Process ◽  
Scanning Electron

Polypropylene/Cocoa Pod Husk (PP/CPH) biocomposites with different maleated polypropylene (MAPP) content were prepared via melt blending process using Brabender Plastrograph mixer. The tensile strength and tensile modulus of PP/CPH biocomposites increased with increasing of MAPP content. The PP/CPH biocomposites with 5 phr of MAPP showed the optimum improvement on tensile properties. However, the increased of MAPP content reduced the elongation at break of PP/CPH biocomposites. At 5 phr of MAPP content, PP/CPH biocomposites showed lowest elongation at break. Scanning electron microscope confirms the PP/CPH biocomposites with MAPP have better filler-matrix interaction and adhesion due to the effect of MAPP.

scholarly journals Pengaruh Perlakukan Alkali terhadap Sifat Fisik, dan Mekanik Serat Kulit Buah Pinang

2018 ◽  
Vol 11 (1) ◽  
pp. 6
Author(s):  
Cokorda putri Kusuma kencanawati ◽  
I Ketut Gede Sugita ◽  
NPG Suardana ◽  
I Wayan Budiasa Suyasa
Keyword(s):  
Tensile Strength ◽  
Room Temperature ◽  
Alkali Treatment ◽  
Agricultural Waste ◽  
Alkaline Treatment ◽  
Physical Characteristics ◽  
Percentage Increase ◽  
Fiber Density ◽  
Areca Catechu ◽  
Wax Content

Makalah ini menganalisis pengaruh perlakukan alkali dan tanpa perlakukan alkali terhadap karakateristik fisik, morfologi dan sifat mekanik serat kulit buah pinang (areca Catechu L.). Selama ini pemanfaatan limbah pertanian belum dilakukan secara maksimal, sehingga dapat menimbulkan pencemaran terhadap lingkungan. Serat kulit buah pinang (Areca Husk Fiber/AHF) selama ini hanya dipergunakan sebagai bahan bakar biomassa dan media tanam sedangkan untuk pemanfaatan lain belum ada sama sekali. AHF diberi perlakukan NaOH 2,5%, 5%, 7,5% dan 10% dengan waktu perendaman 2 jam pada temperatur kamar, untuk mengetahui karakteristik fisik AHF maka dilakukan pengukuran panjang dan diameter serat, pengujian densitas, pengujian kadar air dan moisture sedangkan untuk mengetahui karakteristik mekanik dilakukan pengujian tarik serat tunggal sesuai dengan ASTM D 3379. Dari penelitian ini diketahui bahwa diameter AHF mengalami pengurangan diameter akibat perlakukan alkali, hal ini terkait dengan hilangnya kandungan lignin, pektin dan wax. Densitas AHF menurun dengan meningkatan prosentase NaOH bila dibandingkan dengan AHF tanpa perlakukan NaOH. Kekuatan tarik bervariasi dengan adanya perlakuan alkali.  Kekuatan tarik AHF tertinggi pada serat yang mengalami perlakukan NaOH 5% yaitu sebesar 165 Mpa dan kekuatan tarik terendah pada AHF dengan perlakuan Alkali 10% yaitu sebesar 137 MPa . This paper analyzes the effect of alkali and non-alkali treatments on the physical characteristics, morphology and mechanical properties of betel nut huks fiber (areca Catechu L.). the used of agricultural waste has not been done optimally, causing environmental pollution. Areca Husk Fiber (AHF) only used as biomass fuel and planting medium, while for the other uses it has not existed. AHF was given 2.5%, 5%, 7.5% and 10% NaOH treatment with 2 hours immersion at room temperature, to known the physical characteristics of AHF then measured the length and diameter of fiber, density test, water content and moisture test. Mechanical characteristics of single fiber tensile testing in accordance with ASTM D 3379. From this study that known the diameter of AHF has a reduction in diameter due to alkaline treatment, this is related to loss of lignin, pectin and wax content. The density of AHF decreases with the percentage increase of NaOH when compared with AHF without the treatment of NaOH. Tensile strength varies with alkaline treatment. The highest AHF tensile strength in treated fibers was 5% NaOH of 165 Mpa and lowest tensile strength in AHF with 10% Alkali treatment of 137 MPa.

scholarly journals The effects of alkanolamide addition on cure characteristics, swelling behaviour and tensile properties of silica-filled natural rubber (NR) / chloroprene rubber (CR) blends

2018 ◽  
Vol 34 ◽  
pp. 01030 ◽  
Author(s):  
Indra Surya ◽  
Syahrul Fauzi Siregar ◽  
Hanafi Ismail
Keyword(s):  
Tensile Strength ◽  
Natural Rubber ◽  
Tensile Properties ◽  
Crosslink Density ◽  
Tensile Modulus ◽  
Palm Stearin ◽  
Swelling Behaviour ◽  
Elongation At Break ◽  
Cure Characteristics ◽  
Chloroprene Rubber

Effects of alkanolamide (ALK) addition on cure characteristics, swelling behaviour and tensile properties of silica-filled natural rubber (NR)/chloroprene rubber (CR) blends were investigated. The ALK was synthesized from Refined Bleached Deodorized Palm Stearin (RBDPS) and diethanolamine, and incorporated into the silica-filled NR/CR blends as a non-toxic rubber additive. The ALK loadings were 0.0, 1.0, 3.0, 5.0 and 7.0 phr. It was found that the ALK exhibited shorter scorch and cure times and higher elongation at break of the silica-filled NR/CR blends. The ALK also exhibited higher torque differences, tensile modulus and tensile strength at a 1.0 phr of ALK loading and then decreased with further increases in the ALK loading. The swelling measurement proved that the 1.0 phr loading of ALK caused the highest degree in crosslink density of the silica-filled NR/CR blends.

The High-Temperature Tensile Test of Quartz Fiber Fabric- Reinforced Resin Composites

2021 ◽  
Vol 904 ◽  
pp. 188-195
Author(s):  
Hua Qiong Wang ◽  
Li Li Zhang ◽  
Da Cheng Jiao ◽  
Yan Ru Wang ◽  
Zeng Hua Gao
Keyword(s):  
Tensile Strength ◽  
High Temperature ◽  
Tensile Test ◽  
Tensile Properties ◽  
Tensile Modulus ◽  
National Standard ◽  
Resin Composites ◽  
Quartz Fiber ◽  
High Temperature Tensile ◽  
Fiber Fabric

The tensile properties of quartz fiber fabric-reinforced resin composites at high temperature were studied. The effects of specimen type and dimension, temperature loading procedure, holding time and loading rate on the tensile properties of the composites at high temperatures were analyzed through series of comparative experiments, the tensile test parameters were determined. Chinese national standard for high-temperature tensile property testing of the composites was compiled based on the data collected. According to the established standard, the tensile testing at 500°C was carried out. Compared with the tensile properties at room temperature, the tensile strength and tensile modulus of the composite at high temperature decreases significantly, with the tensile strength decreasing by about 42.32% and the tensile modulus decreasing by about 24.18%. This is mainly due to the high temperature which causes part of the resin matrix to pyrolyze and detach from around the fiber, thus losing the integrity of the material. In addition, this national standard for high-temperature tensile properties has some general applicability to different types of fiber-reinforced resin composites.

Sign in / Sign up

Export Citation Format

Share Document