Polysiloxanes

Polysiloxanes Struktur
63148-53-8
CAS-Nr.
63148-53-8
Englisch Name:
Polysiloxanes
Synonyma:
OV-225;Silicones;POLYSILOXANES;SILICONE FLUID;EMALEX MTS-30E;Silicone oil Ⅰ;Silicone resins;SILICONE OIL AR 200;Polyorganosiloxanes;Dowcorning710silicone
CBNumber:
CB0189460
Summenformel:
Molgewicht:
0
MOL-Datei:
Mol file

Polysiloxanes Eigenschaften

Flammpunkt:
204 °C
Dielectric constant
2.2(Ambient)
EPA chemische Informationen
Siloxanes and Silicones (63148-53-8)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" />
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P302+P352 BEI BERÜHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckmäßig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P321 Besondere Behandlung
P332+P313 Bei Hautreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.
P362 Kontaminierte Kleidung ausziehen und vor erneutem Tragen waschen.

Polysiloxanes Chemische Eigenschaften,Einsatz,Produktion Methoden

Verwenden

Silicone resins are normally supplied for use as solutions, prepared as described above. The final conversion of the partially polymerized soluble material into a fully cross-linked product is carried out in situ. In the crosslinking process, remaining silanol groups are condensed by heating in the presence of a catalyst, e.g. zinc octo ate, cobalt naphthenate or triethanolamine.

synthetische

Silicone resins consist of branched polymers, production of which is based on the hydrolysis of trichlorosilanes. If pure trichlorosilanes are hydrolysed, the products are highly cross-linked and intractable and are unsuitable for normal applications. In order to reduce the degree of cross-linking, it is usual to subject a blend of tri- and dichlorosilanes to hydrolysis. A convenient measure of the functionality of a blend is given by the R/Si value, which is the ratio of the numbers of organic groups and silicon atoms. (Thus pure dimethyldichlorosilane and methyltrichlorosilane have R/Si values of 2 and 1 respectively.)For the preparation of commercial resins, R/Si values in the range 1.2-1.6 are usual. Most commercial silicone resins contain both methyland phenyl groups. The introduction of phenyl groups into the methylsiloxane network results in improved heat resistance, flexibility and compatibility with pigments although pure phenyl silicone resins give products which are too weak for most applications. In methyl phenyl resins, the methyl and phenyl groups may be attached to either the same or different silicon atoms.

Pharmazeutische Anwendungen

Silicones are inert synthetic polymers with a wide range of uses including as sealants, cookware, adhesives and medical applications. Silicones contain next to silicon atoms also carbon, hydrogen and oxygen atoms. Silicones (oligo and polysiloxanes) are the most widely used class of silicon-based compounds clinically. Silicones can be found in plastics, lubricants, catheters, implants and a variety of other medically used items. Silicone fluids, such as simethicone, are known for their antifoaming properties.

Polysiloxanes Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Polysiloxanes Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 18)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21695 55
JinJin Le Chemical Co., Ltd 10106090
jjlchem2@163.com China 9986 58
Hubei Qifei Pharmaceutical Chemical Co., Ltd 027-027-59322506 18071128681
1438082200@qq.com China 9995 58
Hubei Longsheng Sihai New Material Co., Ltd. 0710-6245064 19571289761
495727841@qq.com China 16 58
Hubei Tuobang Chemical Co., Ltd. 027-59106185 13986181695
1466039@qq.com China 9997 58

63148-53-8()Verwandte Suche:


  • POLYSILOXANES
  • POLYPHENYLMETHYLDIMETHYLSILOXANE
  • POLYPHENYLMETHYLSILOXANE
  • POLYMETHYLPHENYLSILOXANE
  • SILICONE DC 550 FLUID
  • SILICONE FLUID
  • SILICONE FLUID DC 550
  • SILICONE OIL AR 200
  • Dowcorning710silicone
  • hightemperaturesiliconefluid
  • Silicones
  • Silicone resins
  • Siloxanes and Silicones
  • OV-225
  • SILOXANE, POLYSILOXANES, SILICONES
  • EMALEX MTS-30E
  • DOW CORNING 550 SILICONE FLUID
  • DOW CORNING 710 SILICONE FLUID
  • METHYLPHENYL POLYSILOXANE
  • Silicone oil Ⅰ
  • TAINFUCHEM: POLYPHENYLMETHYLDIMETHYLSILOXANE
  • Polyorganosiloxanes
  • 63148-53-8
  • Gas Chromatography
  • Packed GC
  • Stationary Phases
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