scholarly journals Integrated studies of the physical and mechanical properties of cotton fabric

2021 ◽  
Vol 304 ◽  
pp. 03024
Author(s):  
Nodira Saydalieva ◽  
Dilfuza Khudayberdieva ◽  
Feruza Isamukhamedova ◽  
Illarion Shin
Keyword(s):  
Mechanical Properties ◽  
Weight Gain ◽  
Hydrogen Bonds ◽  
Cotton Fabric ◽  
Physical And Mechanical Properties ◽  
Opening Angle ◽  
Integrated Studies ◽  
Adhesive Forces

The nature of the adhesive forces of the K-4 preparation is manifested in the occurrence of hydrogen bonds between molecules, as a substance with a sufficiently developed ability to form hydrogen bonds with cellulose. By the method of a one-factor experiment, the regularities of the influence of the concentration of the preparation alkaline-hydrolyzed PAN product on shrinkage, the total opening angle and weight gain of the fabric were revealed. It was found that the concentration of the preparation, equal to 75 g/l, provides the minimum shrinkage and rinsability of the sizing, as well as at the same time the largest value of TOA.

scholarly journals Influence of Thermal and Chemical Modification on the Physical and Mechanical Properties of Leucaena leucocephala Wood

2018 ◽  
pp. 1-7
Author(s):  
B. Olufemi ◽  
S. O. Ayanleye ◽  
E. A. Iyiola
Keyword(s):  
Mechanical Properties ◽  
Weight Gain ◽  
Water Absorption ◽  
Leucaena Leucocephala ◽  
Treatment Time ◽  
Treated Wood ◽  
Physical And Mechanical Properties ◽  
Constant Weight ◽  
Chemically Modified ◽  
Thermally Treated

This study examined the physical and mechanical properties of thermally and chemically modified Leucaena leucocephala wood. Sample planks were obtained from Akure and reduced to defect-free samples of 20 mm × 20 mm × 60 mm. Wood samples were oven dried to a constant weight at 103 ± 2°C and cooled in a desiccator before the thermal treatment. Heat treatment of wood was Carried out in a muffle furnace at 140, 160 and 180°C for 1hr and 2 hrs. Butyl Acetate was used for the chemical treatment. The dimensional stability, weight gain of the samples was measured with parameters such as volumetric swelling, percentage weight gain and water absorption. The result of WA showed that there was a decrease with increased temperature and treatment time. At a treatment time of 2 hr, lower values of WA were obtained as compared to the control samples which are 22.65% at 160°C and 17.15% for 180°C. Volumetric swelling values of 5.87 and 5.56 at 160°C and 180°C were obtained during the experiment. The result of the experiment showed that the water absorption of the wood decreases at increasing temperature and treatment time but after prolonged soaking of wood in water thermally treated wood showed lower resistance to biodeterioration as compared to chemically treated wood. Chemically modified wood showed increased MOR at 2 hrs treatment time (109.75 N/mm2) than thermally treated wood with MOR of 99.14 N/mm2 at 160°C and 48.76 N/mm2 at 180°C which makes them be more durable and can therefore be used for constructional purposes.

PEMANFAATAN KAYU AKASIA MANGIUM (Acacia mangium Willd) UNTUK MEBEL

2012 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Djoko Purwanto
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Physical Properties ◽  
Treatment Process ◽  
Acacia Mangium ◽  
Physical And Mechanical Properties ◽  
Wood Fibers ◽  
Test Parameters ◽  
Mechanical And Physical Properties ◽  
Scale Scores

Timber Acacia mangium (Acacia mangium, Willd) for Furniture. The study aims to determine the mechanical and physical properties and the decorative value (color and fiber) wood of acacia mangium with using finishing materials. This type of finishing material used is ultran lasur natural dof ,ultran lasur classic teak, aqua politur clear dof, aqua politur akasia dan aqua politur cherry. After finishing the wood is stored for 3 months. Test parameters were observed, namely, physical and mechanical properties of wood, adhesion of finishing materials, color and appearance of the fiber, and timber dimensions expansion. The results showed that the mechanical physical properties of acacia wood qualified SNI. 01-0608-89 about the physical and mechanical properties of wood for furniture, air dry the moisture content from 13.78 to 14.89%, flexural strength from 509.25 to 680.50 kg/cm2, and compressive strength parallel to fiber 342.1 - 412.9 kg/cm2. Finishing the treatment process using five types of finishing materials can increase the decorative value (color and fiber) wood. Before finishing the process of acacia mangium wood has the appearance of colors and fibers and less attractive (scale scores 2-3), after finishing acacia wood fibers have the appearance of colors and interesting and very interesting (scale 4-5).Keywords: mangium wood, mechanical properties, decorative value, finishing, furniture.

Physical and Mechanical Properties of Tenun Pahang Fabrics using Alternative Yarns

2016 ◽  
Vol 13 (2) ◽  
pp. 67
Author(s):  
Engku Liyana Zafirah Engku Mohd Suhaimi ◽  
Jamil Salleh ◽  
Suzaini Abd Ghani ◽  
Mohamad Faizul Yahya ◽  
Mohd Rozi Ahmad
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
The Other ◽  
Silk Fabrics ◽  
Recovery Angle ◽  
Made In

An investigation on the properties of Tenun Pahang fabric performances using alternative yarns was conducted. The studies were made in order to evaluate whether the Tenun Pahang fabric could be produced economically and at the same time maintain the fabric quality. Traditional Tenun Pahang fabric uses silk for both warp and weft. For this project, two alternative yarns were used which were bamboo and modal, which were a little lower in cost compared to silk. These yarns were woven with two variations, one with the yarns as weft only while maintaining the silk warp and the other with both warp and weft using the alternative yarns. Four (4) physical testings and three (3) mechanical testings conducted on the fabric samples. The fabric samples were evaluated including weight, thickness, thread density, crease recovery angle, stiffness and drapability. The results show that modal/silk and bamboo silk fabrics are comparable in terms of stiffness and drapability, hence they have the potential to replace 100% silk Tenun Pahang.

Basic set of experiments for determination of mechanical properties of sand

2014 ◽  
Vol 62 (1) ◽  
pp. 129-137
Author(s):  
A. Sawicki ◽  
J. Mierczyński
Keyword(s):  
Mechanical Properties ◽  
Soil Mechanics ◽  
Physical And Mechanical Properties ◽  
Local Strain ◽  
Initial State ◽  
Laboratory Equipment ◽  
Additional Information ◽  
Basic Set ◽  
Initial Anisotropy

Abstract A basic set of experiments for the determination of mechanical properties of sands is described. This includes the determination of basic physical and mechanical properties, as conventionally applied in soil mechanics, as well as some additional experiments, which provide further information on mechanical properties of granular soils. These additional experiments allow for determination of steady state and instability lines, stress-strain relations for isotropic loading and pure shearing, and simple cyclic shearing tests. Unconventional oedometric experiments are also presented. Necessary laboratory equipment is described, which includes a triaxial apparatus equipped with local strain gauges, an oedometer capable of measuring lateral stresses and a simple cyclic shearing apparatus. The above experiments provide additional information on soil’s properties, which is useful in studying the following phenomena: pre-failure deformations of sand including cyclic loading compaction, pore-pressure generation and liquefaction, both static and caused by cyclic loadings, the effect of sand initial anisotropy and various instabilities. An important feature of the experiments described is that they make it possible to determine the initial state of sand, defined as either contractive or dilative. Experimental results for the “Gdynia” model sand are shown.

PREPARATION AND CHARACTERIZATION OF REPROCESSED COMPOSITES OF POLYPROPYLENE REINFORCED BY WOOD FIBERS: PHYSICAL AND MECHANICAL PROPERTIES

2017 ◽  
Author(s):  
Thais Helena Sydenstricker Flores-Sahagun ◽  
Kelly Priscila Agapito ◽  
ROSA MARIA JIMENEZ AMEZCUA ◽  
Felipe Jedyn
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Wood Fibers
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