Mechanical and thermal properties of composites of cis and trans-polyisoprene blends filled with Al-powder

2012 ◽  
Vol 231 ◽  
pp. 54-62 ◽  
Author(s):  
Mahesh Baboo ◽  
Kananbala Sharma ◽  
N.S. Saxena
Keyword(s):  
Thermal Properties ◽  
Mechanical And Thermal Properties ◽  
Al Powder ◽  
Cis And Trans ◽  
Properties Of Composites

Conditioning effect on the mechanical and thermal properties of heat-treated oil palm empty fruit bunch/high-density polyethylene composite

2020 ◽  
Vol 32 (2) ◽  
pp. 158-167
Author(s):  
Nur Afifah Nordin ◽  
Nor Mas Mira Abd Rahman ◽  
Aziz Hassan
Keyword(s):  
Thermal Properties ◽  
Oil Palm ◽  
High Density Polyethylene ◽  
Mechanical And Thermal Properties ◽  
Empty Fruit Bunch ◽  
Soil Burial ◽  
Heat Treated ◽  
Fibre Composites ◽  
Untreated Fibre ◽  
Properties Of Composites

Oil palm empty fruit bunch (EFB) is one of the potential natural fibre that can be used as an alternative to synthetic fibre. EFB was heat-treated at 180°C using vacuum oven for 1 h, extrusion compounded with high-density polyethylene at 10%, 20% and 30% weight fraction. The composites were injection moulded into dumb-bell (ASTM D-638) and bar-shaped specimens (ASTM E-23). The composites were exposed to different environments which are soil burial and indoor environment for 3 months. The effects of conditioning on mechanical and thermal properties were studied relative to the dry as moulded samples as a standard. It was found that the mechanical and thermal properties of composites under soil burial conditions were reduced. Tensile modulus of 30% untreated fibre loading reduced from 1.56 GPa for dry to 1.03 GPa for soil burial conditions, respectively. The same reduction was also found in the flexural modulus. However, the value of treated fibre composites was found slightly higher compared to untreated fibre composites. The treated fibre composites showed more resistance towards the environment condition. Composites made from heat-treated EFB show improved thermal stability, expected due to better compatibility between fibres and matrices, thus lowering the moisture intake, despite the conditions of the samples. However, indoor exposure has no significant effect on the thermal and mechanical properties of composites.

Structure and properties of composites based on polyphenylene sulfide reinforced with Al-Cu-Fe quasicrystalline particles

2017 ◽  
Vol 31 (7) ◽  
pp. 882-895 ◽  
Author(s):  
DI Chukov ◽  
AA Stepashkin ◽  
VV Tcherdyntsev ◽  
LK Olifirov ◽  
SD Kaloshkin
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Thermal Diffusivity ◽  
Polymer Matrix ◽  
Resistance Index ◽  
Softening Temperature ◽  
Polyphenylene Sulfide ◽  
Mechanical And Thermal Properties ◽  
Structure And Properties ◽  
Properties Of Composites

Structural, mechanical, and thermal properties of polyphenylene sulfide (PPS) filled with Al-Cu-Fe quasicrystals particles were studied. It was shown that the introducing of quasicrystalline fillers into the polymer matrix results in the increase in Young’s modulus, hardness, and toughness of the polymer. Quasicrystalline fillers can improve thermal properties of PPS, including heat resistance index, Vicat softening temperature, thermal diffusivity, and thermal conductivity.

scholarly journals Plasma Treatment ofAgaveFiber Powder and Its Effect on the Mechanical and Thermal Properties of Composites Based on Polyethylene

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Florentino Soriano Corral ◽  
Luis Antonio Calva Nava ◽  
Ernesto Hernández Hernández ◽  
José Francisco Hernández Gámez ◽  
María Guadalupe Neira Velázquez ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Plasma Polymerization ◽  
Polymerization Process ◽  
Mechanical And Thermal Properties ◽  
Melt Mixing ◽  
Water Contact ◽  
Hydrophobic Behavior ◽  
Neat Matrix ◽  
Scanning Electron ◽  
Properties Of Composites

Composites based on low-density polyethylene (LDPE) were prepared withAgavefiber powder (AFP) that was coated by plasma polymerization process using ethylene gas. Treated and pristine AFP were analyzed by infrared spectroscopy, scanning electron microscopy, and contact water angle for the assessment of surface properties. The polymer composites were prepared by melt mixing using 0, 5, 10, and 20 wt% of AFP and their mechanical and thermal properties were measured. Dispersion evaluation in water confirmed that the AFP treated changed from hydrophilic to hydrophobic behavior and it was also corroborated with water contact angle tests. The addition of treated and untreated AFP (200 mesh) at 20 wt% promotes an increase of Young’s modulus of the composites of up to 60% and 32%, respectively, in relation to the neat matrix. Also, an increase of crystallinity of LDPE was observed by the addition of treated and untreated AFP; however no significant effect on the crystallization temperature was observed in LDPE containing AFP.

Mechanical and Thermal Properties of Composites Containing Waste Coir Pith

2014 ◽  
Vol 1054 ◽  
pp. 238-242 ◽  
Author(s):  
Monika Čáchová ◽  
Dana Koňáková ◽  
Eva Vejmelková ◽  
Martin Keppert ◽  
Pavel Reiterman ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Bending Strength ◽  
Agricultural Waste ◽  
Mechanical And Thermal Properties ◽  
Material Parameters ◽  
Coir Pith ◽  
Vacuum Saturation ◽  
Saturation Method ◽  
Helium Pycnometry ◽  
Properties Of Composites

Agricultural waste materials can often find an application in the production of concrete or mortar. In this paper, several composites containing waste coir pith are studied. A reference material without coir pith is analyzed as well, for the sake of comparison. The investigated material parameters include the basic physical properties determined by the water vacuum saturation method and helium pycnometry, compressive strength, bending strength, and thermal properties.

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