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CHDM D
CHDM-D (1,4-cyclohexanedimethanol) is a high–molecular weight cycloaliphatic glycol chemical intermediate used to create saturated and unsaturated polyester resins used in various industries.
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- Manufacturer: Eastman
- Product Line: Eastman Resin Intermediates
- Product: CHDM (Cyclohexane Dimethanol)
- Industries: Adhesives | Building & Construction | Coatings
- Authorized Countries: Canada | United States
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Overview
CHDM-D, or 1,4-cyclohexanedimethanol, is a symmetrical cycloaliphatic glycol chemical intermediate used in the manufacturing process for saturated and unsaturated polyester resins. CHDM-D is often used in conjunction with Eastman NPG™ glycol as a glycol modifier for resins.
CHDM-D provides good resistance to chemicals, stains, humidity, and corrosion in polyester–methylamine baked enamels for coatings for appliances, automobiles, and industrial equipment. In waterborne polyester resins, CHDM-D content is responsible for providing good hydrolytic stability. It may also be used in unsaturated polyester resin applications, including gel coats, sheet molding compounds, and injection moldable FRP.
Specifications
Appearance: White, waxy solid
Viscosity at 23°C (cPs): 877
Flash point, °C (°F): 167 (333)
Boiling point, °C (°F): 284–288 (543–550)
Melting point, °C (°F): 41–61 (106–142)
Specific gravity at 20°C/20°C: 1.02
CAS No.: 105-08-8
Molecular weight (g/mol): 144.21
Empirical formula: C8H16O2
IUPAC: 1,4-cyclohexanedimethanol
Features & Benefits
Good hardness and flexibility balance
High crystallinity
Excellent humidity and corrosion resistance
Good heat resistance and electrical properties
Highly reactive hydroxyl groups
Rapid esterification and cure
High glass transition temperature
Problems Solved
Inferior fiberglass-reinforced plastic thermal or corrosion resistance
Undesirably low glass transition temperature relative to linear aliphatic glycols
Poor polyester resin resistance to stains, detergents, or impact
Applications
Automotive
Building materials
Coil coatings
Construction chemicals
Machinery coatings
Lubricants
Paints
Packaging
Polymer modification
Protective coatings
Related Applications
Adhesives
Building & Construction
Coatings
Related Chemistries
Related Functions
Related Technologies
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