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PVC Plasticizer Dipropylene Glycol Dibenzoates (DPGDB) with CAS 27138-31-4

CAS No.:27138-31-4
Place of Origin:China
Appearance:Transparent liquid
MF:C20H22O5
Purity:99%
Certificate:COA MSDS TDS
Free Samples

Dipropylene Glycol Dibenzoate (abbreviated as DPGDB) is an eco-friendly benzoate-based plasticizer. It is an ester compound synthesized through the esterification reaction of dipropylene glycol and benzoic acid, appearing as a colorless to pale yellow, transparent oily liquid. As a high-performance plasticizer, DPGDB offers numerous advantages—including low toxicity, non-carcinogenicity, and ready biodegradability—and is free of phthalate components. Consequently, it has been recommended by regulatory bodies in regions such as the European Union and the United States as an environmentally friendly alternative to traditional phthalate plasticizers (such as DOP).

 

Product picture:
DPGDB
DPGDB
Function

In the production of polyvinyl chloride (PVC) products, dipropylene glycol dibenzoate serves as a highly efficient primary plasticizer. It significantly enhances the flexibility, cold resistance, and impact strength of PVC products, while simultaneously lowering the material’s processing temperature and shortening the molding cycle. Due to its excellent resistance to migration and extraction, it is particularly well-suited for manufacturing products that require long-term retention of softness—such as artificial leather, wallpaper, cable compounds, flooring materials, and toys.

Owing to its low volatile organic compound (VOC) content and excellent compatibility, dipropylene glycol dibenzoate finds widespread application in the field of water-based adhesives. Its incorporation into products such as white emulsion glues, woodworking adhesives, and panel-bonding glues effectively extends the adhesive’s open time, improves wet tack, and accelerates the curing rate, thereby enhancing overall bonding performance. Furthermore, it serves as an ideal plasticizer for polysulfide and polyurethane sealants, bolstering the elasticity, durability, and weather resistance of these sealing materials to ensure the long-term stability of the sealing effect.

In the coatings and inks industry, dipropylene glycol dibenzoate is frequently employed as a film-forming aid and plasticizer. It improves the leveling and film-forming properties of coatings, while enhancing the flexibility and scrub resistance of the resulting film. Particularly in water-based coatings and inks, it helps lower the system’s glass transition temperature—thereby preventing the coating from becoming brittle or cracking—while simultaneously reducing odor emissions during product application, in full compliance with environmental regulations. Additionally, it functions as a solubilizer and dispersant for pigments, facilitating their uniform dispersion throughout the system.

 

Product Specifications:

Item
Specification
Appearance
Transparent oily liquid,free of particulate impurities.
Assay ( Benzoic esters )
98.0% min
Acidity ( Calculated as Benzoic Acid )
0.1% max
Moisture
0.07% max
Color(APHA)
100 max
Hydroxyl No
6 mg/g max

 

Package:

1kg/200kg Bucket

Palletized Shipping

Lead Time: 1-7 Days

Shipping Methods: Sea/Air/Express delivery

Dipropylene Glycol Dibenzoate package
Dipropylene Glycol Dibenzoate package

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