Morphology and physical properties of composite foams based on low-density polyethylene and ground tire rubber

2013 ◽  
Vol 19 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Dong Tian ◽  
Xinxing Zhang ◽  
Jian Zhu ◽  
Canhui Lu
Keyword(s):  
Physical Properties ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Composite Foams

scholarly journals Ground tire rubber filled low-density polyethylene: The effect of particle size

2021 ◽  
Author(s):  
Lóránt Kiss ◽  
Dániel Ábel Simon ◽  
Roland Petrény ◽  
Dávid Kocsis ◽  
Tamás Bárány ◽  
...  
Keyword(s):  
Particle Size ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Effect Of Particle Size

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.

scholarly journals Effect of Ground Tire Rubber on Mechanical Properties of Low Density Polyethylene

2021 ◽  
Vol 8 (2) ◽  
pp. 85-92
Author(s):  
Mushtaq Asim ◽  
Khan Raza Muhammad ◽  
Ali Zaeem Uddin
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Thermoplastic Elastomer ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Rubber Content ◽  
Percentage Elongation ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Elastomer Blend

This research explores the effect of ground tire rubber (GTR) on the mechanical properties of LDPE. This thermoplastic-elastomer blend sets the composition of ground tire rubber and low-density polyethylene (LDPE/GTR). The blend was prepared in different proportions and was processed in a compression molding machine. The optimum operating conditions of the blend set to be 220℃ temperature and pressure varied from 150-200 bars. Different parts per hundred rubber (phr) samples were obtained under these conditions, including 1 phr, 2 phr, 3 phr, 4 phr, and 5 phr. After that, the mechanical properties of the blend were examined concerning various compositions. Different testing methods were used to determine the mechanical properties of the thermoplastic-elastomer blend, which include tensile strength, flexural strength, and Izod impact. The results obtained from these tests show that tensile strength and modulus decreases by increasing the rubber content. However, impact strength and percentage elongation increase by increasing the rubber content. This enhancement in impact and percentage elongation may be suitable for the applications in gymnasium mat and automobile industry.

Polymer Foams Based on Low Density Polyethylene/Ethylene Vinyl Acetate/Ground Tire Rubber (LDPE/EVA/GTR): Influence of the GTR Particle Size and Content on the Cellular Morphology and Density of the Final Foamed Compounds

2018 ◽  
Vol 779 ◽  
pp. 64-70
Author(s):  
Florentino Soriano-Corral ◽  
José F. Hernández-Gámez ◽  
Lyndon H. I. Durón-Sánchez ◽  
Luis Francisco Ramos de Valle ◽  
Myriam Lozano-Estrada ◽  
...  
Keyword(s):  
Particle Size ◽  
Size Distribution ◽  
Cell Size ◽  
Vinyl Acetate ◽  
Ethylene Vinyl Acetate ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Cell Size Distribution ◽  
Tire Rubber ◽  
Ground Tire Rubber

Addition of different contents of ground tire rubber (GTR) of different particles size in crosslinked-foamed compounds based on low density polyethylene (LDPE)/ethylene vinyl acetate (EVA) was studied. Compounds were made by melt mixing in an internal mixer at 100°C and 60 rpm. Trigonox 145-45B as crosslinking agent, azodicarbonamide (ADC) as chemical blowing agent (CBA) and ZnO/SiO2as foaming co-agents, were used. GTR of 149, 74, and 44 μm particle size was incorporated as “cell nucleating agent”, each particle size at 5, 10, and 20 phr. Morphological parameters such as average cell size (d), cell size distribution and cellular density (NC) were evaluated from images acquired by scanning electron microscopy (SEM). The results obtained from the SEM characterization show a significant reduction ofd, a significance increment onNC, up to 5.81*105to 3.62*107cells/cm3and a better homogenization of the cell size distribution in the foamed compounds with high GTR contents of the smaller particle size.

The effect of polyester recycled tire fibers mixed with ground tire rubber on polyethylene composites. Part II

2018 ◽  
Vol 34 (3) ◽  
pp. 128-142 ◽  
Author(s):  
Siavosh Moghaddamzadeh ◽  
Denis Rodrigue
Keyword(s):  
Injection Molding ◽  
Low Density Polyethylene ◽  
Temperature Profiles ◽  
Linear Low Density Polyethylene ◽  
Mechanical Tension ◽  
Screw Speed ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Extruder Screw ◽  
Physical Density

This work reports on the mechanical (tension, flexion, and impact) and physical (density and hardness) properties of polyester recycled tire fibers (RTFs) mixed with ground tire rubber and linear low-density polyethylene with and without styrene–ethylene–butylene–styrene grafted maleic anhydride as a compatibilizer. In particular, the effect of RTF content (10, 25, and 50 wt%), extruder screw speed (110, 180, and 250 r/min), and temperature profiles (extrusion and injection molding) was studied. The results showed that the best properties were obtained at the highest RTF content (50%) and extruder screw speed (250 r/min) combined with the lowest temperature profile in both extrusion and injection molding when the compatibilizer was added.

Polyurethane/ground tire rubber composite foams based on polyglycerol: Processing, mechanical and thermal properties

2015 ◽  
Vol 34 (9) ◽  
pp. 708-717 ◽  
Author(s):  
Łukasz Piszczyk ◽  
Aleksander Hejna ◽  
Magdalena Danowska ◽  
Michał Strankowski ◽  
Krzysztof Formela
Keyword(s):  
Thermal Properties ◽  
Mechanical And Thermal Properties ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Composite Foams ◽  
Rubber Composite

Cable and Wire Application: Adoption of Nanomagnesium Hydroxide Blended with LDPE/EVA for Mechanical and Physical Properties

2013 ◽  
Vol 701 ◽  
pp. 202-206
Author(s):  
Ahmad Aroziki Abdul Aziz ◽  
Sakinah Mohd Alauddin ◽  
Ruzitah Mohd Salleh ◽  
Mohammed Iqbal Shueb
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Melt Flow Index ◽  
Low Density Polyethylene ◽  
Flow Index ◽  
Low Density ◽  
Elongation At Break ◽  
Mechanical And Physical Properties ◽  
Poly Ethylene ◽  
Loading Amount

Effect of nanoMagnesium Hydroxide (MH) nloading amount to the mechanical and physical properties of Low Density Polyethylene (LDPE)/ Poly (ethylene-co vinyl acetate)(EVA) nanocomposite has been described and investigated in this paper. The tensile strength results show that increased amount of nanofiller will decrease and deteriorate the mechanical properties. The elongation at break decreased continuously with increasing loading of nanofiller. Generally, mechanical properties become poorer as loading amount increase. Melt Flow Index values for physical properties also provide same trend as mechanical properties results. Increase filler amount reduced MFI values whereby increased resistance to the flow.

scholarly journals Rotomolding of Thermoplastic Elastomers Based on Low-Density Polyethylene and Recycled Natural Rubber

2019 ◽  
Vol 9 (24) ◽  
pp. 5430 ◽  
Author(s):  
Ramin Shaker ◽  
Denis Rodrigue
Keyword(s):  
Thermoplastic Elastomers ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Melt Blending ◽  
Material Degradation ◽  
Rubber Content ◽  
Ground Tire Rubber ◽  
The Road ◽  
Processing Cost ◽  
Physical Density

In this study, regenerated and nonregenerated off-the-road (OTR) ground tire rubber (GTR) was blended with low-density polyethylene (LDPE) to produce thermoplastic elastomers (TPE) by rotational molding. In particular, blending was performed by two different methods: melt blending (extrusion) and dry blending (high shear mixer). Then, different GTR concentrations (0, 20, 35, and 50 wt %) were used to determine the effect of rubber content on the processability and properties of the rotomolded compounds. From the samples produced, a complete morphological (optical and scanning electron microscopy), physical (density and hardness), and mechanical (tension, flexion, and impact) characterization was performed. The results showed that increasing the rubber content decreased the mechanical rigidity and strength but increased the elasticity and ductility. Finally, although melt blending led to slightly better properties than dry blending, the latter is more interesting to limit possible material degradation (mechanical, thermal, and oxidative), while reducing processing cost and time.

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