Comprehensive Guide to Dipropylene Glycol Dibenzoate (DPGDB)
Chemical Identification of Dipropylene Glycol Dibenzoate
• CAS Number: 27138-31-4
• EINECS Number: 248-258-5
• EC Number: 248-258-5
• Appearance: Clear, colorless to pale yellow liquid
• Odor: Mild, characteristic odor
• Molecular Weight: 342.42 g/mol
• Molecular Structure: Consists of a dipropylene glycol backbone with two benzoate groups
• Chemical Formula: C20H22O4
Production Method of Dipropylene Glycol Dibenzoate
Dipropylene glycol dibenzoate is synthesized through the esterification of dipropylene glycol with benzoic acid.
This process involves a catalytic reaction where dipropylene glycol and benzoic acid are reacted under controlled conditions to form the ester compound.
Physical and Chemical Properties of Dipropylene Glycol Dibenzoate
• Density: Approximately 1.12 g/cm³ at 20°C
• Refractive Index: 1.523 at 20°C
• Melting Point: -40°C
• Boiling Point: 350°C
• Flash Point: 204°C
• Solubility in Water: Slightly soluble
• UN Number: Not regulated
• Vapor Pressure: <0.01 mm Hg at 20°C
Safety and Hazard Information
Dipropylene glycol dibenzoate is considered to have low toxicity, but proper handling is advised to avoid ingestion, inhalation, or skin contact.
Always refer to the material safety data sheet (MSDS) for detailed hazard information and protective measures.
Synonyms of Dipropylene Glycol Dibenzoate
1. Benzoflex 9-88
2. DPGDB
3. 1,2-Propanediol dibenzoate
4. Bis(benzoato) dipropylene glycol
5. Dipropylene glycol bis(benzoate)
6. Propane-1,2-diyl dibenzoate
7. Dipropylene glycol dibenzoate ester
8. Benzoic acid ester
9. Glycol dibenzoate
10. Dibenzoate plasticizer
Trade Names of Dipropylene Glycol Dibenzoate
1. Benzoflex 9-88
2. Kalama K-FLEX 850S
3. Oxsoft GPO
4. Polynt DPGDB
5. Edenol DPGDB
Uses and Applications of Dipropylene Glycol Dibenzoate (DPGDB)
Dipropylene glycol dibenzoate (DPGDB) is a highly versatile plasticizer extensively used in various industries due to its exceptional compatibility with a wide range of polymers and resins.
Below are the detailed uses and applications of DPGDB:
Plasticizer for PVC
Dipropylene glycol dibenzoate plasticizer is widely used in the production of polyvinyl chloride (PVC) products. It significantly enhances the flexibility, durability, and overall performance of PVC items, including:
• PVC flooring: Provides improved flexibility and resilience.
• Wall coverings: Ensures long-lasting and durable finishes.
• Synthetic leather: Offers a soft and pliable texture, making it ideal for upholstery and fashion accessories.
Adhesives and Sealants
DPGDB is a key ingredient in various adhesives and sealants due to its ability to improve adhesion properties and flexibility. Its applications include:
• Construction adhesives: Enhances bond strength and longevity.
• Automotive sealants: Provides robust sealing and flexibility in automotive components.
• Packaging adhesives: Ensures strong and durable bonds in packaging materials.
Coatings
In the coatings industry, Dipropylene glycol dibenzoate is used in water-based formulations to improve film formation, flexibility, and adhesion. Its applications include:
• Industrial coatings: Offers superior film integrity and durability.
• Protective coatings: Enhances protection against environmental factors.
• Decorative coatings: Provides a smooth and durable finish for various surfaces.
Personal Care Products
DPGDB is utilized in personal care products due to its excellent solvency and low volatility. Its applications include:
• Fragrances: Acts as a fixative, ensuring long-lasting scent.
• Nail polish: Enhances application smoothness and film formation, providing a long-lasting effect.
Lubricants
In the lubricants industry, Dipropylene glycol dibenzoate enhances performance by improving viscosity and reducing volatility. Its applications include:
• Industrial lubricants: Ensures stable viscosity and enhanced performance.
• Automotive lubricants: Provides superior lubrication and reduces wear and tear.
Printing Inks
DPGDB is an essential component in printing inks, where it improves flexibility and adhesion on various substrates. Its applications include:
• Flexographic inks: Enhances print quality and durability.
• Gravure inks: Provides excellent adhesion and vivid color reproduction.
• Digital printing inks: Ensures high-quality prints with superior adhesion.
Textiles
In the textile industry, Dipropylene glycol dibenzoate is used as a softener and plasticizer, improving the feel and durability of fabrics. Its applications include:
• Fabric softeners: Provides a soft and comfortable feel to textiles.
• Textile coatings: Enhances flexibility and durability of coated fabrics.
