Effect of Nanosilica and Nanoclay on the Mechanical, Physical, and Morphological Properties of Recycled Linear Low Density Polyethylene/Rice Husk Composites

2020 ◽  
Author(s):  
Wagih Abdel Alim Sadik ◽  
Abdel Ghaffar Maghraby El Demerdash ◽  
Rafik Abbas ◽  
Alaa Bedir
Keyword(s):  
Rice Husk ◽  
Morphological Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene

Effects of Oven Ageing on Linear Low Density Polyethylene (LLDPE)/ Recycled Acrylonitrile Butadiene Rubber (NBRr)/ Rice Husk Powder (RHP) Composites

2015 ◽  
Vol 754-755 ◽  
pp. 205-209
Author(s):  
Nurliayana Ariffin ◽  
Santiagoo Ragunathan ◽  
Sam Sung Ting ◽  
Hanafi Ismail
Keyword(s):  
Thermal Degradation ◽  
Rice Husk ◽  
Heat Exposure ◽  
Testing Machine ◽  
Morphological Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Butadiene Rubber ◽  
Linear Low Density Polyethylene ◽  
Acrylonitrile Butadiene Rubber

The thermal degradation of linear low density polyethylene (LLDPE)/ recycled acrylonitrile butadiene rubber (NBRr)/ rice husk powder (RHP) composites with and without epoxidized nature rubber (ENR-50) were studied. The thermal degradation of this composite was evaluated for 30 days using oven ageing. The NBRr content was manipulated in this work and the particle size for the rice husk powder was 150-300 μm. The composites were prepared by using two-roll mills at 180 °C and then were compressed at 180 °C to produce a 1 mm thin sheets. The dumbbell samples then were analysed by using universal testing machine and field emission screening electron microscopy for tensile and morphological properties. The results obtained showed that tensile strength was decreased with the increasing of NBRr content for both oven ageing and control composites. However the oven ageing composites recorded much lower tensile properties. This may possibly due to the chain session of LDPPE matrix at longer heat exposure duration. This finding is supported by the morphological micrograph with less ductile features of the respective specimens.

Impact of hybrid nanosilica and nanoclay on the properties of palm rachis-reinforced recycled linear low-density polyethylene composites

2020 ◽  
pp. 089270572094421
Author(s):  
Wagih Abdel Alim Sadik ◽  
Abdel Ghaffar Maghraby El Demerdash ◽  
Rafik Abbas ◽  
Alaa Bedir
Keyword(s):  
Tensile Modulus ◽  
Stress Transfer ◽  
Microscopy Study ◽  
Hybrid Nanoparticles ◽  
Morphological Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Plastic Composite ◽  
Blending Method

The main goal of this work was to assess the technical feasibility of palm rachis (PR) as a reinforcing agent in the production of wood–plastic composites. Recycled linear low-density polyethylene/PR fiber composites were prepared at constant content (3 phc (per hundred compounds)) of maleic anhydride-grafted polyethylene as compatibilizer by melt blending method utilizing a two-roll mill and compression molding. The effect of nanosilica (NS), nanoclay (NC), and hybrid nanoparticles (NSNC) at different concentrations (2, 4, and 6 phc) on mechanical, physical, thermal, and morphological properties was investigated. The results of mechanical properties measurements demonstrated that when 6 phc NS, 4 phc NC, and 4 phc NSNC were added, tensile, modulus strength, and hardness reached their optimum values. At a high level of NC loading (6 phc), the increased populace of NC layers led to agglomeration and stress transfer gets restricted. Elongation at break and Izod impact strength were decreased by the incorporation of different nanoparticles. Water absorption and thickness swelling of prepared composites were found to decrease on the incorporation of NS and NC. In addition, the thermal stability showed slightly improved by the addition of nanoparticles, but there are no perceptible changes in the values of melting temperature by increasing the content of NS and NC or NSNC. Scanning electron microscopy study approved the good interaction of the PR fibers with the polymer matrix as well as the effectiveness of NS and NC in the improvement of the interaction. The finding indicated that wood–plastic composite treated by NS had the highest properties than other composites.

Rotomolding of Foamed and Unfoamed GTR-LLDPE Blends: Mechanical, Morphological and Physical Properties

2018 ◽  
Vol 37 (2) ◽  
pp. 55-68 ◽  
Author(s):  
Yao Dou ◽  
Denis Rodrigue
Keyword(s):  
Mechanical Properties ◽  
Morphological Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Simple Method ◽  
Ground Tire Rubber ◽  
Blowing Agent ◽  
Composite Foams ◽  
Complete Set

In this work, a simple method is presented to produce ground tire rubber (GTR) -linear low density polyethylene (LLDPE) compounds and foams via rotational molding. In particular, different GTR concentrations (0 to 50% wt.) were dry-blended with different chemical blowing agent (CBA) content (0 to 1% wt.). From the samples produced, a complete set of characterization was performed in terms of mechanical properties (tensile, flexural and impact), density and morphological properties. The results show that increasing GTR content or CBA content not only decreased both tensile and flexural moduli, but decreased ultimate strength and strain at break. As expected, increasing blowing agent content decreased density. Besides, with respect to impact strength, the value of all samples decreased with the addition of GTR or CBA except for 0.2% wt. CBA of GTR-LLDPE composite foams, which nearly remain at the same level.

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