[article]
| Titre : |
Synthesis of silicone-acrylic-modified high-ortho novolac resin with enhanced thermal resistance and surface coating properties |
| Type de document : |
texte imprimé |
| Auteurs : |
Serkan Emik, Auteur ; Tülin Banu Iyim, Auteur ; Saadet özgümüs, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 1679-1690 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse thermique
Caractérisation
Polymères -- Synthèse
Résistance à l'humidité:Résistance à l'eau
Revêtements -- Propriétés chimiques
Revêtements -- Propriétés physiques
Revêtements -- Propriétés thermiques
Revêtements organiques
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
Vinyltriméthoxysilane
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In the present study, vinyltrimethoxysilane was used to modify high-ortho novolac resin (NR) to obtain a vinyl silicone-modified phenolic oligomer (Si-mod NR). Subsequently, this oligomer is polymerized with methyl methacrylate. The mid-products (NR and Si-mod NR) and synthesized silicone-modified phenolic/acrylic resin (Ac/Si-mod NR) were characterized by Fourier transform infrared spectroscopy, and thermal properties were investigated by using thermal gravimetric analysis and differential scanning calorimetry techniques. In addition, the surface coating properties, including drying, hardness, adhesion, impact resistance, gloss, acid, alkaline, water, and solvent resistance of the films prepared from these products, were comparatively investigated. The results showed that the modification reactions yield a novel resin (Ac/Si-mod NR), which can be easily used as a surface coating material with high thermal resistance, flexibility, and excellent film properties. |
| Note de contenu : |
- EXPERIMENTAL : Material and instruments - Synthesis of high-ortho novolac resin (NR) - Synthesis of silane and vinyl-modified novolac intermediate (Si-mod NR) - Polymerization of Si-mod NR intermediate with the acrylic monomer (Ac/Si-mod NR) - Film preparation - Characterization of surface coating properties
- RESULTS AND DISCUSSION : Synthesis and characterization studies - Film properties of the products -
- Table 1 : The list of surface coating test standards
- Table 2 : Specific weight loss temperatures and the char yields of the products
- Table 3 : Film properties of the products (drying, adhesion, hardness, impact resistance, and gloss)
- Table 4 : Water resistance properties of the films
- Table 5 : Alkaline resistance properties of the films
- Table 6 : Acid resistance properties of the films
- Table 7 Solvent resistance properties of the films |
| DOI : |
https://doi.org/10.1007/s11998-021-00527-4 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-021-00527-4.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36825 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 6 (11/2021) . - p. 1679-1690
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Synthesis of silicone-acrylic-modified high-ortho novolac resin with enhanced thermal resistance and surface coating properties in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 6 (11/2021)
