Some physical and mechanical properties of recycled polyurethane foam blends

2008 ◽  
Vol 44 (5) ◽  
pp. 515-522 ◽  
Author(s):  
A. K. Bledzki ◽  
J. Zicans ◽  
R. Merijs Meri ◽  
D. Kardasz
Keyword(s):  
Mechanical Properties ◽  
Polyurethane Foam ◽  
Physical And Mechanical Properties

Sandwich Composites of Glass Fibre Panel and Polyurethane/Coconut Coir Foam Core (GFRP - PUC)

2011 ◽  
Vol 471-472 ◽  
pp. 391-396 ◽  
Author(s):  
M.A. Azmi ◽  
Hasan Zuhudi Abdullah ◽  
Maizlinda Izwana Idris
Keyword(s):  
Mechanical Properties ◽  
Polyurethane Foam ◽  
Glass Fibre ◽  
Adhesive Bonding ◽  
Physical And Mechanical Properties ◽  
Sandwich Composite ◽  
Sandwich Composites ◽  
Flexural Testing ◽  
Glass Fibre Reinforced ◽  
Coconut Coir

In this work, sandwich composite properties were investigated by addition of coconut coir (CC). Fibres in the polyurethane foam cores ranges from 0 to 20 wt.%. Glass fibre reinforced epoxy panels were used as a skin and polyurethane foam as a core, these materials adhesively bonded to keep the whole structure attached with each other. Sandwich composite skins and core-skin bonding were attained via adhesive bonding technique. While polyurethane foam reinforced by coconut coir fibres were manufactured by using one shot process and polyurethane moulding method. Sandwich composite panels with different coir fibres compositions were subjected to the density test, weight per area test and flexural testing in order to investigate their physical and mechanical properties. From the experimental results and analysis, it was found that the sandwich composites with 10 wt.% of coir fibres offer higher mechanical properties.

scholarly journals Study of physical and mechanical properties of laboratory and industrial samples of heat insulating materials used for the production of pre-insulated pipes, fi ttings and polyurethane shells

2020 ◽  
Vol 1 (11-12) ◽  
pp. 50-55
Author(s):  
L. V. Luchkina ◽  
G. G. Nikiforova ◽  
V. G. Vasiliev ◽  
S. V. Romanov
Keyword(s):  
Mechanical Properties ◽  
Polyurethane Foam ◽  
Thermal Insulation ◽  
Production Technology ◽  
Physical And Mechanical Properties ◽  
Chemical Components ◽  
Insulating Materials ◽  
Foaming Agents ◽  
Materials Used ◽  
Industrial Samples

Polyurethane foam insulation based of environmentally friendly chemical components using novel foaming agents was obtained. Physical and mechanical properties of thermal insulation was investigating. The infl uence of foaming agents on insulation properties and production technology of preinsulated pipes, fi ttings and polyurethane shells was studied. It is shown that when using water and dimethoxymethane, polyurethane foam insulation has quite good physical and mechanical properties and can be used in the production of PI pipes, shells and fi ttings.

Temperature and Mold Size Effects on Physical and Mechanical Properties of a Polyurethane Foam

2005 ◽  
Vol 41 (2) ◽  
pp. 153-168 ◽  
Author(s):  
Dacia Jackovich ◽  
Brendan O'toole ◽  
Michelle Cameron Hawkins ◽  
Linda Sapochak
Keyword(s):  
Mechanical Properties ◽  
Polyurethane Foam ◽  
Size Effects ◽  
Physical And Mechanical Properties

scholarly journals The effect of oil palm trunk particles and composite density on the physical and mechanical properties of rigid polyurethane foam composite

2021 ◽  
Vol 891 (1) ◽  
pp. 012003
Author(s):  
S S Munawar ◽  
C D Widyanto ◽  
L S Hutahean ◽  
D Purnomo ◽  
B Subiyanto ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyurethane Foam ◽  
Oil Palm ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Rigid Polyurethane Foam ◽  
Oil Palm Trunk ◽  
Foam Composite ◽  
Screw Withdrawal ◽  
Closed Mold

Abstract The oil palm trunk (OPT) particle was used as a filler for the manufacture of rigid polyurethane foam composites (RPUFC). The purpose of this research is to investigate the effect of OPT particle content and variation of composite density on the physical and mechanical properties of RPUFC. The RPUFC was created with five different volume fractions of OPT particles (0, 2.5, 5, 7.5, 10 wt%) and three different composite densities (40, 50, 60 kg/m3). The OPT particles, polyols, and isocyanate were mixed, poured and formed in a closed mold. The moisture content (MC), water absorption (WA), compressive strength (CS), screw withdrawal (SW), and internal bonding strength (IB) properties were determined according to JIS A 5908-2003. The flexural strength (FS) properties were determined according to ASTM D790. The physical properties (MC, WA) were increased with increasing OPT particles in the RPUFC. The RPUFC with 2.5% OPT particle was higher in modulus of rupture, modulus of young and CS values compared to RPUFC control. The IB and SW values were increased when 2.5% OPT particles were added to RPUFC. The best PURFCs were produced with the addition of 2.5% particles at a density of 50 and 60 kg/m3.

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.

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