| Titre : |
Thermoplastic blends of PP and waste rubber powder : Effects of compatibilizer on tensile properties, thermal behavior and decomposition kinetics |
| Type de document : |
texte imprimé |
| Auteurs : |
J.-N. Yan, Auteur ; S.-B. Nie, Auteur ; X.-H. Huang ; G.-X. Ding ; J.-B. Zhu |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 460-470 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Alliages polymères
Alliages polymères -- propriétés mécaniques
Aminopropyltriethoxysilane
Analyse thermique
Anhydride maléique
Caoutchouc
Caoutchouc -- Recyclage
Caractérisation
Cinétique chimique
Ethylène
Greffage (chimie)
Polypropylène
Poudres
Stabilité thermique
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
To improve the performances of waste rubber powder filled polypropylene (PP/WRP) blends, WRP was modified by γ-aminopropyltriethoxysilane (APTES) via mechano-chemical method, and then maleic anhydride (MAH) grafted PP (mPP) and MAH grafted ethylene-α-octene copolymer (mEOC) were chosen as the interfacial compatibilizers. The PP/WRP blends were prepared by melt-compounding and compression, and their morphological structures, tensile properties and thermal behavior were investigated carefully. Results showed that modification of APTES decreased the surface energy of WRP and facilitated its compatibility to PP. Both mPP and mEOC could further enhance their interfacial bonding and mPP was superior to mEOC in increasing the tensile strength and elastic modulus. Thermal analysis revealed relative lower melting temperature and crystallinity but higher activation energy for PLA/WRP blends in comparison to pristine PP. |
| Note de contenu : |
- EXPERIMENTAL : Raw materials - Fabrication of samples - Characterization
- RESULTS AND DISCUSSION : Characterization on the modification of WRP - Morphological structures - Tensile properties - Melt behavior - Thermal stability - Kinetics analysis on the thermal decomposition
- Table 1 : Elemental compositions of the surface of uWRP and WRP by XPS analysis
- Table 2 : Surface energy (γ) and its dispersing (γd) and polar (γp) components for the investigated materials
- Table 3 : Calculated interfacial energies (γAB) for all the possible pairs
- Table 4 : Characteristic parameters of pristine PP and the blends
- Table 5 : Reaction order (n) and activation energy (E) for various samples calculated by Kissinger and Carrasco methods |
| DOI : |
10.3139/217.3439 |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30885 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIII, N° 4 (08/2018) . - p. 460-470
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