scholarly journals A Study of Physical, Mechanical and Thermal Properties for Thermal Insulation from Narrow-leaved Cattail Fibers

2012 ◽  
Vol 1 ◽  
pp. 46-52 ◽  
Author(s):  
Thitiwan Luamkanchanaphan ◽  
Sutharat Chotikaprakhan ◽  
Songklod Jarusombati
Keyword(s):  
Thermal Properties ◽  
Thermal Insulation ◽  
Mechanical And Thermal Properties

Preparation and Characterization of Polyurethane Rigid Foam/Expanded Perlite Thermal Insulation Composites

2010 ◽  
Vol 96 ◽  
pp. 141-144 ◽  
Author(s):  
Ming Xing Ai ◽  
Li Qiang Cao ◽  
Xiao Long Zhao ◽  
Zhen Yu Xiang ◽  
Xiang Yong Guo
Keyword(s):  
Compressive Strength ◽  
Thermal Properties ◽  
Thermal Insulation ◽  
Mechanical And Thermal Properties ◽  
Expanded Perlite ◽  
Rigid Foam ◽  
Two Component ◽  
Good Heat ◽  
Polyurethane Rigid Foam

The polyurethane rigid foam/expanded perlite thermal insulation composites (PPC) have been prepared by mixing the two-component polyurethane and expanded perlite. The effects of proportioning of constituents on the mechanical and thermal properties of PPC were investigated. The results showed the compressive strength of PPC was improved and good heat-insulating was achieved, which would promote the application of polyurethane rigid foam and expanded perlite in buildings.

Multiscale nanocelluloses hybrid aerogels for thermal insulation: The study on mechanical and thermal properties

2020 ◽  
Vol 247 ◽  
pp. 116701 ◽  
Author(s):  
Shuai Jiang ◽  
Meiling Zhang ◽  
Wei Jiang ◽  
Qiuyu Xu ◽  
Jianyong Yu ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Thermal Insulation ◽  
Mechanical And Thermal Properties ◽  
Hybrid Aerogels

Effect of Cork Loading on Mechanical and Thermal Properties of Silica-Ethylene-Propylene-Diene Monomer Composite

2012 ◽  
Vol 510-511 ◽  
pp. 277-283 ◽  
Author(s):  
J. Gul ◽  
S. Mirza
Keyword(s):  
Thermal Properties ◽  
Specific Gravity ◽  
Thermal Insulation ◽  
Thermo Gravimetric Analysis ◽  
Space Vehicles ◽  
Mechanical And Thermal Properties ◽  
Gravimetric Analysis ◽  
Ethylene Propylene ◽  
Low Temperature Flexibility ◽  
Lower Temperature

Ethylene-propylene diene ter-monomer (EPDM) filled with asbestos are widely used as thermal insulation in space vehicles because of its low specific gravity, low temperature flexibility, high ozone and oxygen resistant, superior thermal and ablation characteristics. However, asbestos has been banned worldwide because of its carcinogenic nature. This study was aimed to replace asbestos by environmental friendly and low specific gravity filler, cork in thermal insulation for space vehicles. Various batches of cork filled EPDM were obtained by compounding 0, 10, 20, 40, 50, 60, 70 and 100Phr (parts per hundred parts of rubber) of cork powder with EPDM in Two-roll-mill in presence of other necessary compounding ingredients. The resulted vulcanizates were characterized for mechanical, thermal and ablation performances. It was observed that cork loadings significantly enhanced tensile strength and hardness of EPDM. However, elongation at break of EPDM decreased with the increase of cork concentration. Moreover, no significant reduction in density of EPDM was obtained instead of compounding with lower specific gravity cork powder. Temperatures cures in Thermo-gravimetric analysis shifted to lower temperature with increasing of cork percentage in the formulation. Furthermore, char formation of the EPDM composites decreased with the increase of cork Phr in the composition which was the indication of degrading thermal stability of EPDM by cork powders. It can be concluded that on the basis of mechanical properties asbestos can be replaced by cork powder however, cork filled EPDM exhibited inferior thermal properties as compared to asbestos filled EPDM.

Mechanical and thermal characterization of grafted PP-NCC nanocomposites

2019 ◽  
pp. 089270571987822
Author(s):  
Saud Aldajah ◽  
Mohammad Y Al-Haik ◽  
Waseem Siddique ◽  
Mohammad M Kabir ◽  
Yousef Haik
Keyword(s):  
Thermal Properties ◽  
Interfacial Adhesion ◽  
Thermal Characterization ◽  
Mechanical And Thermal Properties ◽  
Screw Extruder ◽  
Scanning Calorimetry ◽  
Three Point Bending ◽  
Twin Screw ◽  
Thermal Stability Of

This study reveals the enhancement of mechanical and thermal properties of maleic anhydride-grafted polypropylene (PP- g-MA) with the addition of nanocrystalline cellulose (NCC). A nanocomposite was manufactured by blending various percentages of PP, MA, and NCC nanoparticles by means of a twin-screw extruder. The influence of varying the percentages of NCC on the mechanical and thermal behavior of the nanocomposite was studied by performing three-point bending, nanoindentation, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and Fourier-transform infrared (FTIR) spectroscopy tests. The novelty of this study stems on the NCC nanoparticles and their ability to enhance the mechanical and thermal properties of PP. Three-point bending and nanoindentation tests revealed improvement in the mechanical properties in terms of strength, modulus, and hardness of the PP- g-MA nanocomposites as the addition of NCC increased. SEM showed homogeneity between the mixtures which proved the presence of interfacial adhesion between the PP- g-MA incorporated with NCC nanoparticles that was confirmed by the FTIR results. DSC and TGA measurements showed that the thermal stability of the nanocomposites was not compromised due to the addition of the coupling agent and reinforced nanoparticles.

Ta addition effects on the structure, mechanical and thermal properties of sputtered Hf-Ta-C film

2019 ◽  
Vol 45 (12) ◽  
pp. 15596-15602 ◽  
Author(s):  
Xinlei Gu ◽  
Lina Yang ◽  
Xiaorong Ma ◽  
Xuan Dai ◽  
Jia Wang ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Mechanical And Thermal Properties
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