English
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XF-280, XF-60
Polyester polyols arekey raw materials for polyurethane adhesives, providing properties like excellent adhesion, heat resistance, and flexibility. They are reacted with polyisocyanates to form polyurethane adhesives used in a wide range of applications, including flexible packaging, automotive, construction, and furniture. Different types of polyester polyols, such as those with varying molecular weights and structures, can be chosen to tailor the final adhesive's performance for specific uses.
Polyester polyols are reacted with a diisocyanate (like those from the Desmodur® range) to form the polyurethane polymer.
This reaction can result in two-component (2K) solvent-borne adhesives, reactive hot-melt adhesives, or water-based polyurethane dispersions (PUDs).
The specific type of polyester polyol used determines the final properties of the adhesive.
Properties they provide
Excellent adhesion: They offer good bonding to various materials, including wood, metal, and plastics.
High strength: They contribute to high tensile and tear strength in the final product.
Heat and oil resistance: Polyester-based adhesives often show good resistance to oils, fuels, and heat.
Flexibility: They can impart flexibility to the final polyurethane adhesive.
Abrasion resistance: This is another key characteristic often enhanced by polyester polyols.
Limitations and considerations
Examples of applications
Flexible packaging: Used to laminate different films together.
Automotive: Employed in bonding and laminating applications.
Construction: Utilized in wood bonding and for sealing joints.
Furniture: Used for bonding and laminating in the furniture industry.
Parameters
| Product Model | Hydroxyl value (mgKOH/g) | Acid Value (mgKOH/g) | Moisture (%) | Viscosity (CPS 25℃) |
| XF-280 | 280±20 | ≤3.0 | ≤0.1 | 15000-20000 |
| XF-60 | 60±5 | ≤2.0 | ≤0.1 | 20000±5000 |
Polyester polyols arekey raw materials for polyurethane adhesives, providing properties like excellent adhesion, heat resistance, and flexibility. They are reacted with polyisocyanates to form polyurethane adhesives used in a wide range of applications, including flexible packaging, automotive, construction, and furniture. Different types of polyester polyols, such as those with varying molecular weights and structures, can be chosen to tailor the final adhesive's performance for specific uses.
Polyester polyols are reacted with a diisocyanate (like those from the Desmodur® range) to form the polyurethane polymer.
This reaction can result in two-component (2K) solvent-borne adhesives, reactive hot-melt adhesives, or water-based polyurethane dispersions (PUDs).
The specific type of polyester polyol used determines the final properties of the adhesive.
Properties they provide
Excellent adhesion: They offer good bonding to various materials, including wood, metal, and plastics.
High strength: They contribute to high tensile and tear strength in the final product.
Heat and oil resistance: Polyester-based adhesives often show good resistance to oils, fuels, and heat.
Flexibility: They can impart flexibility to the final polyurethane adhesive.
Abrasion resistance: This is another key characteristic often enhanced by polyester polyols.
Limitations and considerations
Examples of applications
Flexible packaging: Used to laminate different films together.
Automotive: Employed in bonding and laminating applications.
Construction: Utilized in wood bonding and for sealing joints.
Furniture: Used for bonding and laminating in the furniture industry.
Parameters
| Product Model | Hydroxyl value (mgKOH/g) | Acid Value (mgKOH/g) | Moisture (%) | Viscosity (CPS 25℃) |
| XF-280 | 280±20 | ≤3.0 | ≤0.1 | 15000-20000 |
| XF-60 | 60±5 | ≤2.0 | ≤0.1 | 20000±5000 |
