435503

Poly(propylenglycol)-block-poly(ethylenglycol)-block-poly(propylenglycol)

average M_n ~3,300

• Synonym(e): Pluronic^® 31R1
• CAS-Nummer: 691397-13-4
• MDL-Nummer: MFCD00082049
• UNSPSC-Code: 12352112
• PubChem Substanz-ID: 24867240
• NACRES: NA.23

Eigenschaften

• Form: viscous liquid
• Qualitätsniveau: 100
• Mol-Gew.: average M_n ~3,300
• Zusammensetzung: PEG, 10 wt. %
• Brechungsindex: n20/D 1.454
• Oberflächenspannung: 34 dyn/cm, 25 °C, 0.1 wt. % in H₂O
• Viskosität: 660 cP(25 °C, Brookfield)(lit.)
• Übergangstemp.: softening point −25 °C; cloud point 25 °C (1 wt. % aqueous solution)
• Dichte: 1.018 g/mL at 25 °C
• HLB: 2.0 - 7.0
• SMILES String: O2C(C2)C.O1CC1
• InChI: 1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
• InChIKey: RVGRUAULSDPKGF-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

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.

Leistungsmerkmale und Vorteile

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.

Rechtliche Hinweise

Pluronic is a registered trademark of BASF

Sicherheitshinweise

• Lagerklassenschlüssel: 10 - Combustible liquids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable