Introduction to Polypropylene Glycol PPG


Date:

2022-05-18

Polypropylene glycol PPG is non corrosive and its monoester is a non ionic surfactant that can react with alcohols to form ethers. PPG is a solvent for vegetable oil, resin, and paraffin. It can also be used to prepare alkyd resins, emulsifiers, demulsifiers, lubricants, and plasticizers. PPG can be used as a defoamer for coatings and hydraulic oils, a defoamer for synthetic rubber and latex processing, a refrigerant and coolant for heat transfer fluids, and a viscosity improver. It can be used as release agent, solubilizer, synthetic oil additive, water-soluble Cutting fluid additive, roller oil and hydraulic oil, high-temperature lubricant, internal lubricant and external lubricant of rubber.

  

聚丙二醇PPG

 

Polypropylene glycol PPG is insoluble in ether and most aliphatic hydrocarbons. It can be used as a basic material for daily chemical, pharmaceutical, and oil preparations. The specifications of propylene glycol include ppg-200, 400, 600, 1000, 1500, 2000, 3000, 4000, 6000, and 8000 (special specifications can be developed and processed).

The molecular weight of polypropylene glycol PPG ranges from 180 to 8800. It is not volatile and non corrosive. Low molecular weight polymers are soluble in water, while high molecular weight polymers are only slightly soluble in water, soluble in oil, many hydrocarbons, Fatty alcohol, ketones, esters, etc. The viscosity of different brands of polypropylene glycol PPG varies greatly, and the color may also vary depending on the brand. Its monoester is a non ionic surfactant that can also react with alcohols to form ethers. It is a solvent for vegetable oil, resin, and paraffin. It can also be used to prepare alkyd resins, emulsifiers, demulsifiers, lubricants, and plasticizers.

The main application areas of polypropylene glycol PPG are as follows:

1. PPG series is soluble in toluene, ethanol, Trichloroethylene and other organic solvents. Ppg200, 400, and 600 are soluble in water and have lubrication, solubilization, defoaming, and antistatic properties. Ppg-200 can be used as a dispersant for pigments.

2. Ppg400 is used as a moisturizer, softener, and lubricant in cosmetics.

3. Used as a defoamer in coatings and hydraulic oils, in synthetic rubber and latex processing, as a refrigerant and coolant for heat transfer fluids, and as a viscosity improver.

4. Used as an intermediate for esterification, etherification, and condensation reactions.

5. PPG can be used as release agent, solubilizer, synthetic oil additive, water-soluble Cutting fluid additive, roller oil and hydraulic oil, high-temperature lubricant, internal lubricant and external lubricant of rubber.

6. Ppg-2000-8000 has excellent lubricity, foam resistance, heat resistance and frost resistance;

7. PPG-3000~8000 is mainly used as a component of polyether to produce polyurethane foam.

8. Ppg-3000~8000 can be directly or esterified for the production of plasticizers and lubricants;

PPG can also be used as a basic material for daily chemical, pharmaceutical, and oil preparations.

Usage and dosage of polypropylene glycol PPG:

The specific dosage should be determined based on the dispersed coating. The dosage is too small to achieve the desired effect. Excessive dosage can also affect stability. A large amount of free additives can have a negative impact on the coating itself. In practical applications, approximate doses can be calculated based on theoretical laws, with a center point floating up and down. Pay attention to the observation effect.