Thermoplastic Elastomers Based on Waste Rubber and Plastics

2004 ◽  
Vol 77 (3) ◽  
pp. 569-578 ◽  
Author(s):  
R. S. Rajeev ◽  
S. K. De
Keyword(s):  
Thermoplastic Elastomers ◽  
Waste Plastics ◽  
Rubber Latex ◽  
Elongation At Break ◽  
Rubber Waste ◽  
Waste Rubber ◽  
Rubber Tire ◽  
Rubber Phase ◽  
Recycled Rubber ◽  
Waste Polymer

Abstract This paper reviews the utilization of waste rubber and waste plastics for the preparation of thermoplastic elastomers (TPEs). TPEs based on ground rubber tire (GRT), waste EPDM rubber, waste nitrile rubber, recycled rubber, latex waste, and waste plastics are described with respect to composition and physical properties. It is found that part of the rubber phase or plastics phase or both in the rubber-plastics blend can be replaced with corresponding waste polymer for the preparation of thermoplastic elastomers. In many cases, the materials prepared from waste polymers show properties comparable to those prepared from fresh polymers. However, in some cases, the materials prepared from waste rubber or waste plastics cannot be classified as TPEs, as the blend compositions show very low elongation at break. Modification of the waste polymer or the use of compatibilizers result in stronger composites.

Characterization of the properties of thermoplastic elastomers containing waste rubber tire powder

2009 ◽  
Vol 29 (5) ◽  
pp. 1480-1485 ◽  
Author(s):  
Shu Ling Zhang ◽  
Zhen Xiang Xin ◽  
Zhen Xiu Zhang ◽  
Jin Kuk Kim
Keyword(s):  
Thermoplastic Elastomers ◽  
Waste Rubber ◽  
Rubber Tire

Properties of Natural Rubber/Ethylene Propylene Diene Monomer/Recycled Latex Catheter (NR/EPDM/rLC) Ternary Blends: Cure Characteristics and Hardness

2013 ◽  
Vol 594-595 ◽  
pp. 725-729
Author(s):  
I. Lokman Hakim ◽  
N.Z. Noriman ◽  
S.T. Sam ◽  
L. Musa ◽  
R. Hamzah
Keyword(s):  
Air Pollution ◽  
High Performance ◽  
Recovery Process ◽  
Ethylene Propylene Diene Monomer ◽  
Application Area ◽  
Ternary Blends ◽  
Rubber Blends ◽  
Rubber Waste ◽  
Recycled Rubber ◽  
Waste Polymer

Currently, the recycled rubber widely being used in rubber technology. Due to difficulty on reprocessing techniques, the vulcanized rubbers being a big problem in the recycled field. One of the main forms of discharge rubber is to apply as fuel to generate electricity and steam, this process is still in use but creates a new problem of air pollution and is also a low value to recovery process of the rubber waste [. Polymer compounds are being used extensively in numerous applications such as roofing and mulch product. A rubber blends can offer a better properties that gives high performance in application area that being used [.

Evaluation of mechanical, morphological and thermal properties of waste rubber tire powder/LLDPE blends

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Zhen Xiu Zhang ◽  
Shu Ling Zhang ◽  
Jin Kuk Kim
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Testing Machine ◽  
Thermoplastic Elastomers ◽  
Linear Low Density Polyethylene ◽  
Scanning Calorimetry ◽  
Waste Rubber ◽  
Universal Testing ◽  
Rubber Tire ◽  
Thermal Stability Of

AbstractPolymer blends of WRT (waste rubber tire) powder/LLDPE (linear low density polyethylene) have been attempted to prepare thermoplastic elastomers (TPEs). The effects of maleic anhydride-grafted styrene-ethylene-butylene-styrene (SEBS-g-MA) and dicumyl peroxide (DCP) on mechanical, morphological and thermal properties of the blends were evaluated using universal testing machine (UTM), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and thermogravimetric analyses (TGA). It was found that combination of SEBS-g-MA and DCP could better enhance the mechanical properties of WRT powder/LLDPE blends compared to SEBS-g-MA or DCP alone. Better compatibility between WRT powder and LLDPE was responsible for the enhancement of mechanical properties, as supported by SEM. The incorporation of SEBS-g-MA and DCP with WRT powder/LLDPE blends reduced the crystallizable perfectness of the blends, but slightly increased the thermal stability of the blends, as shown from DSC and TGA results

scholarly journals Preparation and characterization of thermoplastic elastomers (TPEs) based on waste polypropylene and waste ground rubber tire powder

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Shu Ling Zhang ◽  
Zhen Xiu Zhang ◽  
Dong jin Kang ◽  
Dae Suk Bang ◽  
Jin Kuk Kim
Keyword(s):  
Thermal Stability ◽  
Testing Machine ◽  
Thermoplastic Elastomers ◽  
Elongation At Break ◽  
Rubber Tire ◽  
Ground Rubber ◽  
Waste Polypropylene ◽  
Better Than ◽  
Recycled Material

AbstractIn this article, the possibility of obtaining the recycled material based on waste polypropylene (WPP) and waste ground rubber tire powder (WGRT) has been studied. It has been proved that partially replacing WPP with PP-g-MA increased the elongation at break of WPP/WGRT blends, whereas decreased the thermal stability. The presence of compatibilizer increased the elongation at break and thermal stability of WPP/WGRT blends, whereas decreased the processing flowability, as revealed by using universal testing machine (UTM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and capillary rheometer. Moreover, the tendency of the change became more obvious with the content of PP-g-MA and compatibilizer or with the combination of PP-g-MA and compatibilizer. In addition, the improvement of the nonpolar compatibilizer (SEBS) in properties of WPP/WGRT blends was better than that of the polar compatibilizer (SEBS-g-MA).

Using Recycled Rubber Particles as Filler of Polymers

2014 ◽  
Vol 616 ◽  
pp. 260-267 ◽  
Author(s):  
Petr Valášek ◽  
Miroslav Müller ◽  
Juraj Ružbarský
Keyword(s):  
Mechanical Properties ◽  
Polymeric Materials ◽  
Epoxy Adhesive ◽  
Rubber Waste ◽  
Waste Rubber ◽  
Rubber Particles ◽  
Recycled Rubber ◽  
Material Utilization

One of a way of a material utilization of a rubber waste originated at a recyclation of tyres is its inclusion into polymeric materials. The paper describes chosen mechanical properties of an epoxy adhesive and polyurethane filled with the waste rubber. The waste rubber was gained as one of outputs of a recycling line of a firm Gumoeko, Ltd. The filler presence influences resultant mechanical properties and decreases a price of gained materials. Defining of mechanical properties enables to specify possible application areas.

scholarly journals Characterization of Blends of Virgin Nitrile Rubber and Compounded Nitrile Rubber Latex Waste Reclaimed with Urea: Part II - Physico-Mechanical Properties

2021 ◽  
Vol 7 (3) ◽  
pp. 733-737
Author(s):  
K.I.D.P. Perera ◽  
D.G. Edirisinghe ◽  
Laleen Karunanayake
Keyword(s):  
Mechanical Properties ◽  
Nitrile Rubber ◽  
Rubber Latex ◽  
Swelling Behaviour ◽  
Elongation At Break ◽  
Rubber Blends ◽  
The Past ◽  
Compression Set ◽  
Rubber Waste

Recycling of rubber waste materials in order to convert these to usable products is one of the main challenges in the rubber industry. Reclaiming of rubber waste and blending it with virgin rubber have increased during the past due to the growing concern on the environment and increase in the prices of synthetic rubbers. Hence, the aim of this study is to partially replace virgin nitrile rubber (NBR) with reclaimed compounded NBR latex waste to develop new rubber blends suitable for special applications. In this study, physico-mechanical properties, ageing performance and swelling behaviour of virgin NBR / reclaimed NBR blend vulcanizates were evaluated and compared with those of the control vulcanizate produced solely with virgin NBR. Results showed that replacement of 50% virgin NBR with reclaimed NBR retained 71-86% of tensile strength, elongation at break and resilience. Hardness and modulus of this blend vulcanizate increased by less than 18%, whereas abrasion volume loss and compression set increased by 27%. Ageing resistance is similar to that of the control vulcanizate. Interestingly, resistance to swelling in toluene and ASTM oil No.3 increased by 14% and 32%, respectively. Hence, the 50:50 virgin NBR / reclaimed NBR vulcanizate would be suitable for oil resistant applications.

Preparation of Polymer Nanoparticles and Application on Nitrile-Butadiene Rubber Reinforcement

2017 ◽  
Vol 900 ◽  
pp. 35-39
Author(s):  
Cheng Chien Wang ◽  
Chih Lung Chiu ◽  
Jian Sheng Shen
Keyword(s):  
Mechanical Properties ◽  
Hydroxyl Group ◽  
Molar Ratio ◽  
Butadiene Rubber ◽  
Microemulsion Polymerization ◽  
Rubber Latex ◽  
Elongation At Break ◽  
Divinyl Benzene ◽  
Rubber Nanocomposites ◽  
Average Size

The different amount of hydrophilic hydroxyl group, including 3, 5, 7 and 10 wt.% copoly (styrene-co - divinyl benzene – co - 2-hydroxylethylenemethacrylate) (poly (St-co-DVB- co -HEMA) s) nanoparticles were synthesized via microemulsion polymerization in the present paper. The average size of the poly (St-co-DVB-co-HEMA) s was ca. 44 nm after zetasizer (DLS) measurement and SEM observation. The characteristic peaks at 3200 ~3600 cm-1 in FTIR was assigned at hydroxyl group of HEMA unit. The NBR/poly (St-co-DVB-co-HEMA) s composites films with 250 μm thickness were prepared simply via latex mixing and followed by spinning coating. The mechanical properties of the poly (St-co-DVB-co-HEMA) s/rubber nanocomposites, including the tensile strength, modulus and elongation, were increased with that of increasing of poly (St-co-DVB-co-HEMA) s adding. In addition, as the poly (St-co-DVB-co-HEMA) s nanoparticles carried out with constant St/HEMA molar ratio of 97:3 and the DVB content in 10 wt.%, the elongation at break that up to more than 3500% and the ultimate stress increased from 0.2 MPa to 0.6 MPa. The poly (St-co-DVB-co-HEMA) s nanoparticles prepared by emulsion polymerization could be successfully enhanced the mechanical properties of rubber latex.

scholarly journals Chitosan and Natural Rubber Latex Biocomposite Prepared by Incorporating Negatively Charged Chitosan Dispersion

Molecules ◽  
2020 ◽  
Vol 25 (12) ◽  
pp. 2777
Author(s):  
Siwarote Boonrasri ◽  
Pongdhorn Sae–Oui ◽  
Pornchai Rachtanapun
Keyword(s):  
Natural Rubber ◽  
Ball Mill ◽  
Negative Charge ◽  
Natural Rubber Latex ◽  
Rubber Latex ◽  
Elongation At Break ◽  
Opposite Trend ◽  
Biocomposite Films ◽  
Mixing Method ◽  
Biocomposite Film

Generally, natural rubber/chitosan (NR/CT) biocomposites could be prepared by either mixing natural rubber latex (NRL) with CT acid solution or mixing dry NR with CT powder on mixing equipment. In the present work, a new mixing method has been proposed and properties of the obtained NR/CT biocomposites are investigated. CT particles were prepared to have a negative charge that could be dispersed in water by using a ball mill before mixing with NRL. The effects of CT loading varied from 0 to 8 phr on latex properties and physical properties of NR/CT biocomposite films were focused. The results showed that the viscosity of NRL increased with increasing CT loading. With increasing CT loading from 0 to 8 phr, 300% modulus of the NR/CT biocomposite film increased, whereas the opposite trend was found for elongation at break. Additionally, the presence of CT in the biocomposite resulted in an increased elastic modulus (E’) in conjunction with enhanced antibacterial activity against Staphylococcus aureus (S. aureus).

Mechanical and Damping Properties of Wood Plastic Composite Modified by Ground Waste Rubber Tire

2017 ◽  
Vol 33 (3) ◽  
pp. 127-138 ◽  
Author(s):  
Jianlin Luo ◽  
Qiuyi Li ◽  
Huaishuai Shang ◽  
Song Gao ◽  
Chunwei Zhang ◽  
...  
Keyword(s):  
Wood Plastic Composite ◽  
Damping Properties ◽  
Plastic Composite ◽  
Waste Rubber ◽  
Rubber Tire
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