Mechanical reinforcement of thermoplastic vulcanizates using ground tyre rubber modified with sulfuric acid
| Autor: | Ramón Díaz de León, Maria Guadalupe Neira Velazquez, José Francisco Hernández Gámez, Lorena Farías Cepeda, Ernesto Hernández Hernández, Salvador Fernandez Tavizon, Silvia Guadalupe Solis Rosales, Florentino Soriano Corral, Pablo González Morones, Rosa Idalia Narro Céspedes |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Thermoplastic Polymers and Plastics 02 engineering and technology law.invention chemistry.chemical_compound Differential scanning calorimetry 020401 chemical engineering Natural rubber law Materials Chemistry Copolymer 0204 chemical engineering Composite material chemistry.chemical_classification Vulcanization Sulfuric acid General Chemistry Ethylene propylene rubber 021001 nanoscience & nanotechnology chemistry visual_art Ceramics and Composites visual_art.visual_art_medium High-density polyethylene 0210 nano-technology |
| Zdroj: | Polymer Composites. 39:229-237 |
| ISSN: | 0272-8397 |
| Popis: | Thermoplastic vulcanizates (TPVs) based on high density polyethylene (HDPE), ethylene propylene diene terpolymer (EPDM) were reinforced with ground tyre rubber (GTR) modified with sulfuric acid and dynamically vulcanized with dicumyl peroxide (DCP). TPVs were composed by 40% of HDPE, 30% of EPDM and 30% of GTR at 50 and 100 mesh and the concentration of DCP was varied from 0.3 to 3.6 parts per hundred rubber (phr). The properties of the TPVs containing GTR were determined by infrared spectroscopy, gel content and differential scanning calorimetry (DSC) analyses. The mechanical properties of the composites were also obtained. An increase of about 207% in the Young's modulus was obtained in blends containing GTR modified with sulfuric acid (GTR-SA) in relation with blends containing pristine GRT. Good compatibility of compounds containing GTR-SA was observed, GTR-SA presented high specific area as a consequence of the modification with sulfuric acid. POLYM. COMPOS., 2016. © 2016 Society of Plastics Engineers |
| Databáze: | OpenAIRE |
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