The influence of cellulose content on tensile strength in tree roots

2007 ◽  
pp. 3-11 ◽  
Author(s):  
Marie Genet ◽  
Alexia Stokes ◽  
Franck Salin ◽  
Slobodan B. Mickovski ◽  
Thierry Fourcaud ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Cellulose Content ◽  
Tree Roots

The Influence of Cellulose Content on Tensile Strength in Tree Roots

2005 ◽  
Vol 278 (1-2) ◽  
pp. 1-9 ◽  
Author(s):  
Marie Genet ◽  
Alexia Stokes ◽  
Franck Salin ◽  
Slobodan B. Mickovski ◽  
Thierry Fourcaud ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Cellulose Content ◽  
Tree Roots

Analysis of Sound Reduction and Strong Drag Composite Concrete Fibers Gedebok Banana Results Delignification with Sodium Hydroxide Solvent (Naoh)

2018 ◽  
Vol 6 (02) ◽  
pp. 105-120
Author(s):  
Muhammad Rouf Suprayogi ◽  
Annisa Mufida ◽  
Edwin Azwar
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Lignin Content ◽  
Sound Intensity ◽  
Cellulose Fiber ◽  
Cellulose Content ◽  
Cellulose Powder ◽  
Drying Method ◽  
Normal Concrete ◽  
Sound Reduction

In composite science, desirable materials that are lighter but have the power and quality that can match or even exceed the material that has been there before. The purpose of this study was to investigate the effect of cellulose fiber addition from banana gedebok to tensile strength, compressive strength and damping of concrete composite sound. To achieve this objective, mixing of cellulose fibers with K-275 quality concrete mix with variation of 0% and 5% substitution in which the cellulose is varied in powder and wicker form. Delignification of lignin content from banana gedebok was done by soaking and drying method without any variation and yielding powder having cellulose content of 13,0388%, hemicellulose 18,2796% and lignin 0,6684%. This study produces concrete composites that have a tensile strength and a compressive strength lower than that of normal concrete. Normally reinforced concrete tensile strength value 94.5 kg / cm2, 71.4 kg / cm2 cellulose powder concrete and 90.3 kg / cm2 cellulose woven concrete. Normal concrete compressive strength value 334,22 kg / cm2, cellulose powder concrete 215,7 kg / cm2, and cellulose webbing concrete 157,98 kg / cm2. As for the power damping sound of cellulose webbing concrete has the highest damping power compared to other concrete with the absorbed sound intensity that is 52-68 dB

TENSILE STRENGTH OF SINGLE CONTINUOUS FIBER EXTRACTED FROM MENGKUANG LEAVES

2015 ◽  
Vol 76 (3) ◽  
Author(s):  
Muhammad Syahmi Hamizol ◽  
Puteri Sri Melor Megat-Yusoff*
Keyword(s):  
Tensile Strength ◽  
Inverse Relationship ◽  
Cellulose Fiber ◽  
Extraction Process ◽  
Alkaline Treatment ◽  
Chemical Extraction ◽  
Cellulose Content ◽  
Continuous Fiber ◽  
Extraction Parameters ◽  
Optimum Extraction

The focus of this paper is to obtain a continuous cellulose fiber (CCF) from mengkuang leaves of the pandanus genus using chemical extraction process and to measure its tensile properties. The higher the concentration of sodium hydroxide (NaOH) and the longer soaking times employed during the alkaline treatment of the mengkuang leaves, the higher the cellulose content extracted. The highest tensile strength of 520 MPa was measured for single CCF treated with optimum extraction parameters of 2% NaOH for 60 minutes. Amount of cellulose content of the extracted fiber showed an inverse relationship with the fiber’s tensile strength. The removal of lignin and hemicellulose content during extraction process may have caused the reduction in the fiber’s tensile strength.

Swelling, Tensile and Thermal Behaviors of Citric Acid Crosslinked Tapioca Starch/Cellulose Biocomposite Films

2020 ◽  
Vol 1010 ◽  
pp. 514-519
Author(s):  
Salleh Morgan Noor Zulaika ◽  
Hui Lin Ong ◽  
Firuz Zainuddin
Keyword(s):  
Tensile Strength ◽  
Lemon Juice ◽  
Cellulose Content ◽  
Scanning Calorimetry ◽  
Lime Juice ◽  
Tapioca Starch ◽  
Biocomposite Films ◽  
Key Lime ◽  
Biocomposite Film ◽  
Strength Result

The biocomposite films were prepared using a solution casting method and allowed to dry in the oven of 50°C. The cellulose used in this research was extracted from the rice straw. The biocomposite films firstly were prepared without crosslinker with various cellulose content; 0.2g, 0.4g, 0.6g, 0.8g, and 1.0g wt%. Based on the tensile strength result, 0.6g of cellulose is an optimum amount to prepare the biocomposite films with various amounts of crosslinker; 1g, 2g, 3g, 4g, and 5g. The tapioca starch/cellulose biocomposite films crosslinked with lemon juices have higher tensile strength (16MPa) and lower in swelling percentage (3.32%) compared to the biocomposite films crosslinked with key lime juice (5.44%). The thermal behavior was studied based on the Differential Scanning Calorimetry test shows the biocomposite film that highly crosslinked needs higher energy during their phase change. The energy liberated in the tapioca starch/cellulose biocomposite film with key lime juice as crosslinker is 201.6 J/g while that of biocomposite film with lemon juice as crosslinker is 383.0 J/g.

Bacterial Cellulose Reinforced Flax Fibre Composites: Effect of Nanocellulose Loading on Composite Properties

2015 ◽  
Vol 825-826 ◽  
pp. 1063-1067
Author(s):  
Marta Fortea-Verdejo ◽  
Elias Bumbaris ◽  
Koon Yang Lee ◽  
Alexander Bismarck
Keyword(s):  
Tensile Strength ◽  
Bacterial Cellulose ◽  
Flax Fibre ◽  
The Other ◽  
Cellulose Content ◽  
Polypropylene Composites ◽  
Flax Fibres ◽  
Paper Making ◽  
Fibre Composites ◽  
Composite Properties

Loose hierarchical flax fibres/polypropylene composites were manufactured in a simple way based on a paper-making process in order to include nanocellulose and allow the hornification of the nanofibres in a controlled manner. The effect of flax fibre content on the flax/polypropylene composites and the influence of nanocellulose on the properties of these composites are discussed. By increasing the flax content a slight decrease of the tensile strength and an increase of the Young´s modulus were observed. On the other hand, no significant effect was noticed when increasing the bacterial cellulose content in the composites.

scholarly journals Tensile strength and cellulose content of Persian ironwood (Parrotia persica) roots as bioengineering material

2014 ◽  
Vol 60 (No. 10) ◽  
pp. 425-430 ◽  
Author(s):  
E. Abdi ◽  
F. Azhdari ◽  
A. Abdulkhani ◽  
H. Soofi Mariv
Keyword(s):  
Tensile Strength ◽  
Tensile Force ◽  
Root Diameter ◽  
Cellulose Content ◽  
The Road ◽  
Diameter Range ◽  
Lack Of Information ◽  
Root Strength ◽  
The Mean ◽  
Biotechnical Properties

Unstable slopes create numerous problems for forest management and may destroy the road network and disturb access to forest. Soil bioengineering is a solution that can prevent these problems and reinforce the hillslope. Persian ironwood is considered as a good protective species for hillslope stability in Iran with an extensive lack of information about biotechnical properties. In this research the root strength of this species and also the relation between root diameter and cellulose content were investigated. The results showed that the mean tensile force and tensile strength were 99.70 ± 2.01 N and 173.23 ± 4.94 MPa, respectively, for the root diameter range between 0.22 and 3.78 mm. The results of ANOVA showed that the power models between root diameter and tensile force and tensile strength were statistically significant and the results of t-test showed that coefficients and constants of the models are also significant. The values of the parameters of the power law (α and β) obtained for Persian ironwood do not fall in the range that has already been suggested for hardwood roots, which may be due to a narrow diameter range. The mean cellulose content was 56.87 ± 5.79% and the relationship between root diameter and cellulose content was not statistically significant. The data presented in this study expand the knowledge of biotechnical properties of Persian ironwood and support the idea that there is still an extensive lack of information about plant roots as a bioengineering material.    

Effects of gauge length and strain rate on the tensile strength of tree roots

Trees ◽  
2012 ◽  
Vol 26 (5) ◽  
pp. 1577-1584 ◽  
Author(s):  
Chaobo Zhang ◽  
Lihua Chen ◽  
Jing Jiang ◽  
Shuo Zhou
Keyword(s):  
Tensile Strength ◽  
Strain Rate ◽  
Gauge Length ◽  
Tree Roots

Extraction and characterization of Ethiopian palm leaf fibers

2018 ◽  
Vol 22 (1) ◽  
pp. 15-25 ◽  
Author(s):  
Desalegn Atalie ◽  
Rotich K. Gideon
Keyword(s):  
Tensile Strength ◽  
Moisture Content ◽  
Fiber Length ◽  
Elaeis Guineensis ◽  
Fiber Strength ◽  
Extraction Methods ◽  
Physical Parameters ◽  
Cellulose Content ◽  
Content Type ◽  
Palm Leaf

Purpose This study aims at extracting and characterizing palm leaf fibers from Elaeis guineensis species of palm trees found in Ethiopia. Design/methodology/approach The fibers were extracted using three methods: manually, through water retting and chemically with sodium hydroxide. Physical parameters of the extracted fibers were evaluated, including tensile strength, fiber fineness, moisture content, degradation point and functional groups. Its cellulose, hemicellulose and lignin contents were also analyzed. Findings The results showed that the palm leaf fibers have a comparable fiber strength (170-450 MPa), elongation (0.95-1.25 per cent), fiber length (230-500 mm) and moisture regain (8-10 per cent) to jute, sisal and flax and thus can be used for technical textile application. Originality/value The fibers extracted using the water retting method had better properties than the other extraction methods. Its fiber length of 307 mm, cellulose content of 58 per cent, strength of 439 MPa and elongation of 1.24 per cent were the highest for all the extracted fibers. When compared with other fibers, palm leaf fiber properties such as tensile strength (439 MPa), elongation (1.24 per cent), moisture content (7.9-10.4 per cent and degradation point (360-380°C) were consistent with those of jute, sisal and ramie fibers. Hence, palm leaf fibers can be used for technical textile applications such as composite reinforcement.

scholarly journals Pemanfaatan Kertas Bekas, Serabut Kelapa (Socos nucifera) dan Kulit Singkong (Manihot utilissima) Untuk Pembuatan Kertas Daur Ulang

2018 ◽  
Vol 14 (2) ◽  
pp. 65-70
Author(s):  
Zurorotul Munashifah ◽  
Heru Subaris Kasjono ◽  
Bambang Suwerda
Keyword(s):  
Tensile Strength ◽  
Water Absorption ◽  
Cellulose Content ◽  
Recycled Paper ◽  
Physical Test ◽  
Community Acceptance ◽  
Coarse Texture ◽  
Pale Colour ◽  
Coconut Fibre ◽  
The Impact

Kalipoh Village, Ayah  Discrit Kebumen, Regency is a waste-producing area such as waste paper, coconut fibre and cassava peels that have not been well managed. The impact of this waste can cause environmental health problems. These three types of waste have cellulose content that can be utilized to make recycled paper. This study aims to determine water absorption, tensile strength, and community acceptance with pre-experimental research design posttest only design analyzed descriptively. The results showed that the best water absorption strength and paper tensile strength were a variation of 1: 1: 2 with a yield of 76 mm and 2,683 N / mm. Whereas based on the result of physical test and public acceptance that recycle paper of variation I have a slightly coarse texture, the fibre is slightly visible and the pale; variation II has a coarse texture, visible fibre and pale colour, while variation III has a rather coarse texture, rather visible fibre and vibrant colour. The community also deeply appreciates the innovation of recycled paper making.

Nutritive value and the genetic relationships of cellulose content and leaf tensile strength in Lolium

1965 ◽  
Vol 65 (3) ◽  
pp. 285-292 ◽  
Author(s):  
D. Wilson
Keyword(s):  
Tensile Strength ◽  
Nutritive Value ◽  
Genetic Relationships ◽  
Lolium Multiflorum ◽  
Phenotypic Correlation ◽  
Cellulose Content ◽  
Wide Range ◽  
Selection For ◽  
High Cellulose ◽  
Leaf Strength

1. The leaf tensile strength of individual plants of a population of Lolium (multiflorum x perenne) perenne was measured on four occasions, October and December 1963 (160 plants) and January and March 1964 (73 of the 160 plants). All plants had been chosen for the good uniform vegetative growth they had exhibited over several seasons. The cellulose content of the 14 weakest and 14 strongest plants in October and of all 73 plants in March was determined.2. There was a wide range in leaf strength, maintained from October to March, within the population. In October all 14 weakest plants had lower cellulose content than the 14 strongest and from these two groups six plants of low leaf strength and low cellulose content and six of high leaf strength and high cellulose content were selected as parent plants for divergent selections. In March there was a positive highly significant (P < 0.001) phenotypic correlation between leaf strength and cellulose content (r = +0.58).3. Two diallel crosses were performed, one within the six parents of low leaf strength and low cellulose content and the other within the six high parents. Leaf strength and cellulose data was obtained from progeny and from parental ramets in October 1964 and high overall heritabilities for both characters (approx. 0.8) calculated from achieved advances and parent/progeny regressions. Selection for high leaf strength and high cellulose content was more effective than for low.

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