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| Case Polyether Polyol SE-220E | |||||||||||||
| Basic Information |
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| What Is Case Polyether Polyol SE-220E? | Case polyether polyol SE-220E is a polymer polyether diol initiated by propylene glycol, with a molecular weight of 2000. SE-220E has a wide range of applications, including the production of sealants and potting compounds, adhesives, and elastomers (such as luggage wheels and rubber rollers). It has a functionality of 2 and a primary hydroxyl content of 80%, making it widely used in the production of elastomers. | ||||||||||||
| Applications |
Sealants: SE-220E is used in the formulation of sealants, providing flexibility and durability required for sealing joints and gaps in various construction and industrial applications.
Potting Compounds: It is used in potting and encapsulation compounds, which protect electronic components from environmental factors like moisture, dust, and vibrations.
Adhesives: SE-220E is a key ingredient in adhesive formulations, offering strong bonding properties for a variety of materials, including plastics, metals, and wood.
Elastomers: The polyol is utilized in the production of elastomers, which are materials with elastic properties similar to rubber. Examples include:
Luggage Wheels: Providing the necessary toughness and flexibility for smooth operation.
Rubber Rollers: Used in various industrial machinery, these rollers require high durability and resistance to wear and tear. |
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Specification
| Hydroxyl value (mgKOH/g): | 54.5~57.5 |
| Water content %: | ≤0.08 |
| Acid value (mgKOH/g): | ≤0.08 |
| pH value: | 5-7 |
| Viscosity (mPa·s/25℃): | 250~450 |
| K+,Na+ (mg/kg): | ≤5 |
| Color APHA: | ≤50 |
| Appearance: | Colorless, transparent, viscous liquid |
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