| Titre : |
A study of non-isothermal kinetic reaction for vulcanization of chloride butyl rubber via phenol formaldehyde resin |
| Type de document : |
texte imprimé |
| Auteurs : |
X. R. He, Auteur ; H. Yu, Auteur ; Y. Q. Rong, Auteur ; R. Zhang, Auteur ; G. S. Huang, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 342-349 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse mécanique dynamique
Caoutchouc -- Propriétés mécaniques
Caoutchouc butyle chloré
Caractérisation
Formaldéhyde
Mélange
Phénoplastes
Réticulation (polymérisation)
Thermocinétique
Vulcanisation
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Brominated tert octyl phenol formaldehyde resin (PR) is an important cross linker for chlorinated butyl rubber (CIIR). There are two competitive reactions in the vulcanization process of CIIR, the cross-linking reaction and the self-poly-condensation reaction of PR. The cross-linking density was measured by the equilibrium swelling method. The results showed: with the increasing of PR content, the cross-linking density increased when it was less than 10 phr, and decreased when the PR content exceeded 10 phr. The kinetics equation of cross-linking reaction and the self-poly-condensation reaction was obtained by non-isothermal DSC method. The results showed that the concentration index n2 of PR in the cross-linking reaction was far less than the concentration index n3 of PR in the self-poly-condensation reaction. The self-poly-condensation reaction was more sensitive to the concentration of PR. This explained that the cross-linking density was out of proportion with the cross linker PR content. The mechanical properties and the dynamic mechanical properties were investigated by the universal testing machine and the dynamic mechanical performance analysis (DMA), respectively. The results showed that the cross-linking density had a great impact on the mechanical properties and the dynamic mechanical properties, and the variation trend of the cross-linking density was further confirmed by the corresponding variation of the properties. When the PR content was 5 phr, the CIIR vulcanizates had better mechanical properties. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Mixing and vulcanization - Preparation of PR blend - Testing and characterization
- RESULTS AND DISCUSSION : The effect of PR content on cross-linking - The research of non-isothermal kinetic equation - The effect of PR content on mechanical properties of vulcanizates - Dynamic mechanical properties of CIIR vulcanizates |
| DOI : |
10.3139/217.2722 |
| En ligne : |
https://drive.google.com/file/d/1sAVFBUSz3CyRTxKyUuWbcp5qkAGZKqaE/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21731 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXIX, N° 3 (07/2014) . - p. 342-349
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A study of non-isothermal kinetic reaction for vulcanization of chloride butyl rubber via phenol formaldehyde resin in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 3 (07/2014)
