Study of the Behavior of Moisture Absorption and Swelling in High Filler Loading Kenaf Core/Bast Polyethylene Composites

2020 ◽  
Vol 9 (1) ◽  
pp. 20190202
Author(s):  
Nurul Faiizin Abdul Aziz ◽  
Zakiah Ahmad ◽  
Muhammad Bazli Faliq Mohd Puaad
Keyword(s):  
Moisture Absorption ◽  
Filler Loading ◽  
Kenaf Core ◽  
High Filler Loading ◽  
Polyethylene Composites

scholarly journals RICE STRAW/THERMOPLASTIC COMPOSITE: EFFECT OF FILLER LOADING, POLYMER TYPE AND MOISTURE ABSORPTION ON THE PERFORMANCE

CERNE ◽  
2016 ◽  
Vol 22 (4) ◽  
pp. 449-456 ◽  
Author(s):  
Hossein Mohammadi ◽  
Seyedmohammad Mirmehdi ◽  
Lisiane Nunes Hugen
Keyword(s):  
Tensile Strength ◽  
Rice Straw ◽  
Moisture Absorption ◽  
Water Immersion ◽  
Filler Loading ◽  
Thermoplastic Composite ◽  
Modulus Of Rupture ◽  
Thermoplastic Composites ◽  
Composite Effect ◽  
Wet Condition

ABSTRAT Thermoplastic composites made with 45, 60 and 75% of rice straw as filler and two types of thermoplastics, virgin polyethylene (PE) and polypropylene (PP) were evaluated. The final boards were made with and without maleic anhydride modified polypropylene (MAPP) at 2% of the total weight of each specimen. The flexural and tensile strengths were measured for dry composites and also measured after 24 h of water immersion of the composites (wet condition). By increasing the filler content, the flexural and tensile strengths and also the density of the specimens decreased. The type of matrix (PE or PP) did not affect significantly the flexural strength, but PP led to higher values of tensile strength for low fiber loadings (45% and 60%). Coupling agents increased the flexural and tensile strength. After water immersion, modulus of elasticity and modulus of rupture were decreased, while tensile strength was less influenced.

Effect of fillers on mechanical properties of recycled low density polyethylene composites under weathered condition

2020 ◽  
Vol 15 (3) ◽  
pp. 44-49
Author(s):  
Ibiyemi A. Idowu ◽  
Olutosin O. Ilori
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Pure Water ◽  
Mechanical Tests ◽  
Filler Loading ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Hardness Property ◽  
Recycled Low Density Polyethylene ◽  
Polyethylene Composites

The study examined the effect of fillers on the mechanical properties of the recycled low density polyethylene composites under weathered condition with a view of managing the generation and disposal of plastic wastes. Discarded pure water sachets and fillers (glass and talc) were sourced and recycled. Recycled low density polyethylene (RLDPE) and preparation of RLDPE/glass, RLDPE/talc and RLDPE/glass/talc composites were carried out using a furnace at compositions of 0 – 40% in steps of 10% by weight. The mixtures were poured into hand-laid mould. The samples produced were exposed to sunlight for eight (8) weeks and their mechanical properties were studied. The results of mechanical tests revealed that tensile strength decreased with increasing filler loading while impact strength and hardness property increased marginally and considerably with increasing filler loading for all the composites respectively. The study concluded that glass and talc were able to reinforce recycled low density polyethylene under weathered condition. Keywords: Recycled Low Density Polyethylene (RLDPE); Fillers; Glass, Talc; Weathering condition; Sunlight; and Mechanical properties; Tensile strength, Impact and hardness

Controlled High Filler Loading of Functionalized Al2O3-Filled Epoxy Composites for LED Thermal Management

2018 ◽  
Vol 27 (3) ◽  
pp. 1296-1307 ◽  
Author(s):  
Anithambigai Permal ◽  
Mutharasu Devarajan ◽  
Huong Ling Hung ◽  
Thomas Zahner ◽  
David Lacey ◽  
...  
Keyword(s):  
Thermal Management ◽  
Filler Loading ◽  
Epoxy Composites ◽  
High Filler Loading

MICRODISPERSION OF SILICA IN TIRE TREAD COMPOUNDS ABOVE THE PERCOLATION THRESHOLD BY TEM IMAGE MEASUREMENTS

2011 ◽  
Vol 84 (1) ◽  
pp. 74-87 ◽  
Author(s):  
Daniel Julve ◽  
Miguel Menéndez ◽  
Jorge Pérez ◽  
José Ramos
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Transmission Electron Microscopy ◽  
Percolation Threshold ◽  
Aggregate Size ◽  
Filler Loading ◽  
Transmission Electron ◽  
Rubber Compounds ◽  
Filler Dispersion ◽  
High Filler Loading

Abstract Dispersion values in rubber are usually subjective values or the result of a comparison against empirical standards. we present a method to measure the filler dispersion in rubber compounds reinforced beyond the percolation threshold. Applying this method to an actual technical formulation with high filler loading, the dispersability of different silica grades, as well as the effect of coupling agent concentration in the dispersion has been showed. To carry out the measurements, the finished rubber is sliced in very thin films and then examined with transmission electron microscopy (TEM). Those images are processed to obtain information on the filler aggregation properties. As expected, the highly dispersible silica presents a smaller aggregate size and more contact surface with the rubber than the conventional and easily dispersible grades. In addition, increasing the amount of silane does diminish the aggregate size but with a lesser effect than that of the silica grade.

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