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Polyether

Propylene Glycol Block Polyether L Series

Hotline:189-9418-6000

Product Introduction

Propylene Glycol Block Polyether L Series Technical Specifications

Technical Parameters

ModelAppearance (25℃)Average Molecular WeightViscosity (25℃, cSt)Cloud Point (1% Aqueous Solution)Melting Point (℃)Moisture (%)pH (1% Solution)HLB Value
L31Colorless transparent liquid110020037≤1.05.0–7.03.5
L35Colorless transparent liquid190032070–85≤1.05.0–7.018.5
F38White solid5000>10045≤1.05.0–7.030
L42Colorless transparent liquid163025037≤1.05.0–7.08
L43Colorless transparent liquid185031042≤1.05.0–7.010
L44Colorless transparent liquid220044045–55≤1.05.0–7.012
L45Colorless liquid to paste240075–85≤1.05.0–7.015
L61Colorless transparent liquid200028517–21≤1.05.0–7.03
L62Colorless transparent liquid250040021–26≤1.05.0–7.07
L63Colorless transparent liquid265047534≤1.05.0–7.011
L64Colorless transparent liquid290055057–61≤1.05.0–7.013
P65Milky white paste350075–8529.5≤1.05.0–7.015
F68White flaky solid8350>10050≤1.05.0–7.029


Note: * Cloud point determined in 5% NaCl solution.

Performance and Applications

  1. Low-Foam Detergents & Defoamers:
    • L61, L64, F68: Formulate low-foam, high-degreasing synthetic detergents.
    • L61: Defoamer in papermaking and fermentation industries.
    • F68: Defoamer for blood circulation systems in heart-lung machines to prevent air entrainment.
  2. Pharmaceutical & Personal Care:
    • Low toxicity makes polyethers suitable as pharmaceutical excipients and emulsifiers in oral/nasal sprays, eye/ear drops, and shampoos.
  3. Wetting Agents:
    • Improve wetting in textile dyeing, photographic development, and electroplating baths.
    • F68: Enhances water permeability in sugar mills to increase sugar extraction.
  4. Antistatic Agents:
    • L44: Provides permanent antistatic protection for synthetic fibers.
  5. Emulsifiers & Dispersants:
    • F68: Emulsifier in vinyl acetate emulsion polymerization.
    • L62, L64: Emulsifiers for pesticides; coolants and lubricants in metal cutting/grinding; lubricants in rubber vulcanization.
  6. Petroleum Industry:
    • L64, F68: Crude oil demulsifiers; inhibit hard scale formation in oil pipelines and aid in secondary oil recovery.
  7. Paper & Textile Industries:
    • F68: Improves quality of art paper.
    • P65: Wool protector in wool carbonization, reducing scale damage by 0.3%, enhancing single-fiber strength by 10%, and decreasing spinning breakage by 10%.
  8. Specialized Applications:
    • F38: Functions as emulsifier, wetting agent, defoamer, demulsifier, dispersant, antistatic agent, dust suppressant, viscosity regulator, dye leveling agent, and gelling agent in agrochemicals, cosmetics, pharmaceuticals, metal cleaning, pulp & paper, textile processing, and water treatment.

Packaging and Storage

  • Packaging: 200 kg iron drums or 50 kg plastic drums.
  • Storage & Transportation: Non-flammable; stored and transported as general chemicals.
  • Storage Conditions: Store in a dry, ventilated area.
  • Shelf Life: 2 years.


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