A comparison between the effects of hydrophobic and hydrophilic silica aerogel fillers on tensile and thermal properties of unsaturated polyester composites

2021 ◽  
Author(s):  
Zulhelmi Alif Abdul Halim ◽  
Nuha Awang ◽  
Muhamad Azizi Mat Yajid ◽  
Norhayati Ahmad ◽  
Halimaton Hamdan
Keyword(s):  
Thermal Properties ◽  
Silica Aerogel ◽  
Unsaturated Polyester ◽  
Polyester Composites

Effect of oil palm ash on the mechanical and thermal properties of unsaturated polyester composites

e-Polymers ◽  
2016 ◽  
Vol 16 (4) ◽  
pp. 323-329 ◽  
Author(s):  
J. Sahari ◽  
M.A. Maleque
Keyword(s):  
Thermal Properties ◽  
Oil Palm ◽  
Tensile Testing ◽  
Unsaturated Polyester ◽  
Morphological Characterization ◽  
Mechanical And Thermal Properties ◽  
Casting Method ◽  
Oil Palm Ash ◽  
Polyester Composites

AbstractThis research was carried out to evaluate the effect of oil palm ash (OPA) on the mechanical and thermal properties of biocomposites. Different compositions of OPA (i.e. 0, 10, 20 and 30 vol%) were introduced to unsaturated polyester (UPE) by using simple casting method with methyl ethyl ketone peroxide (MEKP) as a hardener. The specimens were prepared based on ASTM D5083 standards for tensile testing. From the results, it was found that the mechanical properties of UPE/OPA composites were improved in modulus with increasing the OPA content. The physical properties of UPE/OPA were also investigated where the density of biocomposites decrease with increasing OPA while the water absorption of UPE/OPA increase with increasing OPA. The thermal and morphological characterization of the UPE/OPA composites have been done using TGA, DSC and SEM.

scholarly journals Water Absorption and Thickness Swelling Properties of Silica Aerogel Infused Sugar Palm Fiber/Polyester Composites

2019 ◽  
Vol 8 (2S4) ◽  
pp. 506-509
Keyword(s):  
Water Absorption ◽  
Silica Aerogel ◽  
Unsaturated Polyester ◽  
Thickness Swelling ◽  
Weekly Basis ◽  
Swelling Properties ◽  
Sugar Palm Fiber ◽  
Swelling Characteristics ◽  
Polyester Composites ◽  
Percentage Of Water Absorption

Using natural fibres as reinforcements in composites provides an inexpensive green alternate to its synthetic counterpart. In a similar scope, to enhance the usability of sugar palm fibres (SPF) in composites, various weight percentages (1% to 5%) of silica aerogel (SA) were infused in SPF reinforced unsaturated polyester composites. The samples were prepared using hand layup procedure followed by hot pressing at 80°C for 30 minutes. The physical properties such as water absorption and thickness swelling characteristics of the composites were investigated. The specimen of water absorption and thickness swelling were exposed to water absorption for a total of 90 days and measured on alternate days in first week. Later, the readings were taken on a weekly basis until the 3rd week and bi-weekly for the rest of immersion time. Pure SPF composites showed lowest water absorption and thickness swelling and it increased with addition of SA. The highest water absorption was recorded up to 12 % and thickness swelling was 7% in 5% SA composites. SA showed its hydrophilicity character, but the percentage of water absorption and thickness swelling is very less.

scholarly journals Effect of Kenaf Fibre Layers on Mechanical and Thermal Properties of Kenaf/Unsaturated Polyester Composites

2018 ◽  
Vol 454 ◽  
pp. 012091
Author(s):  
Mohammed Mohammed ◽  
Rozyanty Rahman ◽  
M. Aeshah Mohammed ◽  
F. Osman Azlin ◽  
Adam Tijjani ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Unsaturated Polyester ◽  
Mechanical And Thermal Properties ◽  
Kenaf Fibre ◽  
Polyester Composites

Impact of delignification on mechanical, morphological, and thermal properties of wood sawdust reinforced unsaturated polyester composites

2016 ◽  
Vol 24 (2) ◽  
pp. 185-191 ◽  
Author(s):  
Md. Rezaur Rahman ◽  
Joel Sing Hong Ting ◽  
Sinin Hamdan ◽  
Mahbub Hasan ◽  
Shanti Faridah Salleh ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Unsaturated Polyester ◽  
Wood Sawdust ◽  
Polyester Composites
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