435503

Poly(propylene glycol)-block-poly(ethylene glycol)-block-poly(propylene glycol)

average M_n ~3,300

• Synonyme(s) : Pluronic^® 31R1
• Numéro CAS: 691397-13-4
• Numéro MDL: MFCD00082049
• Code UNSPSC : 12352112
• ID de substance PubChem : 24867240
• Nomenclature NACRES : NA.23

Propriétés

• Forme: viscous liquid
• Poids mol.: average M_n ~3,300
• Composition: PEG, 10 wt. %
• Indice de réfraction: n20/D 1.454
• Tension de surface: 34 dyn/cm, 25 °C, 0.1 wt. % in H₂O
• Viscosité: 660 cP(25 °C, Brookfield)(lit.)
• Température de transition: softening point −25 °C; cloud point 25 °C (1 wt. % aqueous solution)
• Densité: 1.018 g/mL at 25 °C
• HLB: 2.0 - 7.0
• InChI: 1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
• Clé InChI: RVGRUAULSDPKGF-UHFFFAOYSA-N

Description

Description générale

Surface activity of the polymer is dependent on the EO/PO ratio. PPG-PEG-PPG exhibits lower foaming, greater defoaming and reduced gelling tendencies relative to Pluronic^® surfactants. Terminal secondary hydroxyl groups of PPG-PEG-PPG have lower reactivity and acidity than the primary hydroxyl groups in Pluronic surfactants.

Application

Hard and soft surface cleaners, defoamers in coatings and water treatment. Lubricant in metal working, anti-foaming aid and extender for linear and cross-linked polyesters and polyurethanes.

PPG-PEG-PPG Pluronic^® 31R1 can be used as surface cleaners (soft and hard), defoamers in coatings, in water treatment, lubricant in metal working, anti-foaming aid and extender for linear and cross-linked polyesters and polyurethanes.

Caractéristiques et avantages

Surface activity is dependent on the EO/PO ratio. Lower foaming, greater defoaming and reduced gelling tendencies relative to Pluronic^® surfactants. Terminal secondary hydroxyl groups have lower reactivity and acidity than the primary hydroxyl groups in Pluronic^® surfactants.

Informations légales

Pluronic is a registered trademark of BASF

Informations sur la sécurité

• Code de la classe de stockage: 10 - Combustible liquids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable