| Titre : |
Forecast bright for polysiloxanes |
| Type de document : |
texte imprimé |
| Auteurs : |
Karl-Heinz Kaesler, Auteur |
| Année de publication : |
2008 |
| Article en page(s) : |
p. 32-35 |
| Langues : |
Anglais (eng) |
| Catégories : |
Coil coatings
Liaisons chimiques
Résistance aux conditions climatiques
Résistance thermique
Revêtements:Peinture
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).
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The versability of polysiloxanes allows a wide variety fo coating applications such as weather and heat resistant roles.
Polysiloxane and silicone are synonymous used expressions. Although silicone is the more commonly used term we'll mainly use the term polysiloxane, because it's clearer with respect to the chemistry and avoids misunderstanings with the metal silicone or polysiloxane chemistry.
'What is a polysiloxane ?' A polysiloxane is any one of a class of synthetic materials characterised by silicon and oxygen linked together in the siloxane bond, having organic groups attached to silicon, which have a distinct bearing on the properties.
Just as carbon atoms are the building blocks in conventional organic chemistry, so are silicon atoms the basic blocks to which we add organic side chains to build polysiloxane compounds having wide variety of usages and properties.
Three different methods are mainly used by the industry to produce the basic chlorosilane intermediates from which polysiloxanes are made. The three method are : Direct Method, Grignard Method and Olefin Addition Method. Because of limited space, here is just a short description of the most important one - the Direct Method. |
| Note de contenu : |
- How to make polysiloxanes
- Polysiloxanes for coatings
- Strong chemical bond
- Composition related properties
- Weather resistant coatings
- Coil coatings
- High heat resistant coatings |
| En ligne : |
https://drive.google.com/file/d/1CgoC6pFs0Y1h30oOyxvFUz4V2U5JEiIy/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27232 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4521 (02/2008) . - p. 32-35
Aller sur edunet
Accueil
Forecast bright for polysiloxanes in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4521 (02/2008)
