Influence of Mercerization Along with Ultraviolet (UV) and Gamma Radiation on Physical and Mechanical Properties of Jute Yarn by Grafting with 3‐(Trimethoxysilyl) Propylmethacrylate (Silane) and Acrylamide Under UV Radiation

2003 ◽  
Vol 42 (4) ◽  
pp. 515-531 ◽  
Author(s):  
M. Masudul Hassan ◽  
M. Rabiul Islam ◽  
S. Shehrzade ◽  
Mubarak A. Khan
2009 ◽  
Vol 48 (5) ◽  
pp. 542-548 ◽  
Author(s):  
Mubarak A. Khan ◽  
Ruhul A. Khan ◽  
Haydaruzzaman ◽  
Sushanta Ghoshal ◽  
M. N. A. Siddiky ◽  
...  

Polimery ◽  
2021 ◽  
Vol 66 (6) ◽  
pp. 350-356
Author(s):  
Magdalena Cichecka ◽  
Beata Pałys ◽  
Bożena Wilbik-Hałgas ◽  
Marcin H. Struszczyk

The Arrhenius method was used to investigate the effect of accelerated aging conditions on the physical and mechanical properties of polymer films for technical, medical, food and office applications. Temperature and UV radiation were taken into account as environmental factors. It was shown that the tested films are more sensitive to thermal degradation than UV radiation. The reduction in tensile strength after thermal aging does not exceed 40%, and in the case of UV radiation, 14%. The estimated lifetime of the tested films is over 5 years.


2017 ◽  
Vol 14 (2) ◽  
pp. 108-113 ◽  
Author(s):  
Md. Asadul Hoque ◽  
Md. Anwarul Kabir Bhuiya ◽  
Md. Saiduzzaman ◽  
Md. Ashadul Islam ◽  
Mubarak A. Khan

Purpose This paper aim to comparatively study of mechanical properties of gamma radiation treated raw and polyethylene glycol modified bleached jute reinforced polyester composite. The natural fiber-reinforced composite has been a wide area of research, and it is the preferred choice due to its superior physical and mechanical properties like low density, stiffness and light weight. Among several natural fibers, jute is one that has good potential as reinforcement in polymer composite. Jute fibers biodegradability, low cost and moderate mechanical properties make it as a preferable reinforcement material in the development of polymer matrix composites. Design/methodology/approach In the present work, raw jute fabrics-reinforced polyester composite (as RJPC) and polyethylene glycol (PEG)-modified bleached jute fabrics-reinforced polyester composite (as MBJPC) were fabricated by the heat-press molding technique at 120°C for 5 min at a pressure of 5 tons. Prior to the composite formulation, low lignin content bleached jute fabrics were chemically modified with PEG for the better compatibility of the fabrics with the polyester matrix and enhancing elongation properties. All the composites irradiated with different gamma radiation dose in the range of 2 to 14 kGy. Findings The irradiated composites showed highest improved of mechanical properties at the 10 kGy γ-radiation dose. However, the hard and sunlight-sensitive high lignin content γ-RJPC showed higher mechanical properties except elongation properties compared to that of low lignin content γ-MBJPC. Originality/value After the γ-ray irradiation, both the γ-RJPC and γ-MBJPC developed high degree of cross-linking among the polyester molecules and thereto fabrics with the consequence of significant changed of surface morphology as observed by atomic force microscopy.


2012 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Djoko Purwanto

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.


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

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.


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