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PPG-400
Jienuo
Polypropylene Glycol 400 (PPG-400) is a polyether diol with a molecular weight of 400. It is a clear, viscous liquid at room temperature and has a low pour point. PPG-400 is soluble in water and most organic solvents.
This polyol serves as an intermediate in diverse polyurethane and industrial chemical applications. In the cosmetics and pharmaceuticals sectors, it functions as a solubilizing agent, lubricant, and viscosity conditioner. It is also used in adhesives, sealants, coatings, and elastomers. Additionally, PPG-400 can act as an antifoaming and anti-static agent, as well as a plasticizing agent in various industries.
Product Advantage
1. Ultra-high Purity with Consistent Quality
Boasting a minimum purity of 99.5% (tested by gas chromatography), our PPG-400 ensures minimal impurities (≤0.1% water content, ≤0.03% acid value). This high purity reduces side reactions in polyurethane synthesis, enhancing product yield by 8-12% compared to industry averages. It’s ideal for high-end cosmetic formulations requiring low residual solvents.
2. Narrow Molecular Weight Distribution
With a molecular weight distribution coefficient (Mw/Mn) of ≤1.05 (vs. industry typical 1.1-1.2), our PPG-400 guarantees uniform reactivity. This stability ensures consistent foam cell structure in polyurethane foams and improves elastomer tensile strength by 15-20%, validated by 500+ batch tests over 3 years.
3. Excellent System Compatibility
Our PPG-400 shows superior miscibility with water, alcohols, and hydrocarbons, dissolving completely at concentrations up to 30% in aqueous solutions. This makes it a versatile solubilizer in pharmaceuticals and personal care products, reducing formulation time by 20% for cosmetic manufacturers.
4. Enhanced Thermal Stability
With a thermal decomposition temperature of ≥230℃ (TGA test under nitrogen), it outperforms standard PPG-400 (200-220℃). This stability minimizes viscosity fluctuations during high-temperature processing, crucial for adhesives and coating production, lowering reject rates by 10-15% in industrial applications.
5. Low Toxicity & Eco-friendly Profile
Compliant with EU REACH regulations and FDA standards, our PPG-400 has an LD50 (oral, rat) >5000mg/kg, classified as non-toxic. It’s biodegradable under aerobic conditions (60% degradation in 28 days), making it suitable for eco-friendly lubricants and water-based coatings.
Technical Parameters
| Parameter | Specification | Test Method | Industry Standard |
| Appearance | Colorless to light yellow viscous liquid | Visual inspection | Light yellow,no impurities |
| MolecularWeight | 380-420 g/mol | GPC | 350-450 g/mol |
| Hydroxyl Value | 270-290 mg KOH/g | Acetylation method | 250-300 mg KOH/g |
| Acid Value | ≤ 0.05 mg KOH/g | Titration | ≤ 0.1 mg KOH/g |
| Water Content | ≤ 0.1% | Karl Fischer titration | ≤ 0.2% |
| Viscosity (25°C) | 40-60mPa·s | Rotational viscometer | 30-70mPa·s |
| Pour Point | ≤ -30°C | ASTM D97 | ≤ -25°C |
| Flash Point | ≥ 170°C | Closed cup method | ≥ 160°C |
Product Uses
1. Polyurethane Products
As a key polyether polyol raw material, it’s widely used in flexible polyurethane foams and elastomers. It improves foam elasticity and reduces brittleness, with 30% of domestic mid-end foam manufacturers adopting it for sofa and mattress production.
2. Personal Care Formulations
Acts as a solubilizer and moisturizer in lotions, creams, and shampoos. Its low irritation (tested at pH 6.5-7.0) suits sensitive skin products, used by 15+ cosmetic brands in their hydrating serums.
3. Pharmaceutical Industry
Serves as a lubricant in tablet coatings and a solvent in oral suspensions. Compliant with USP standards, it’s integrated into 8 major pharmaceutical formulations for improved drug solubility.
4. Industrial Additives
Functions as an antifoaming agent in industrial cleaning agents and a plasticizer in PVC processing. Reduces foam by 40% in water-based cleaning solutions, adopted by 20+ automotive cleaning manufacturers.
5. Coatings & Adhesives
Enhances coating flexibility and adhesion in water-based coatings. Improves adhesive bonding strength by 10-15% in wood and metal adhesives, used in 5+ furniture coating lines.
Product Operate Guide
Before using the PPG-400, ensure that the working area is well-ventilated. The operation varies for different applications. For instance, when it is used in polyurethane synthesis, accurately weigh it according to the formula and stir and mix it with isocyanate and others at 50-80 ℃ for 2-4 hours. For personal care products, add at 40-60 ℃ and stir evenly. Wear protective gloves and goggles when operating.
FAQ
1. What are the main applications of polyether polyol PPG-400?
It is commonly used in the production of polyurethane foams, adhesives, etc., and can also be used as a lubricant and defoamer. Due to its low viscosity and water solubility, it is also applied in the cosmetics and coatings industries.
2. What should be noted when storing PPG-400?
Store it sealed in a dry and ventilated place, avoiding moisture and impurities, keeping away from fire sources and strong oxidants. It can be stored at room temperature, and prevent changes in performance due to high temperature.
3. What are the differences between PPG-400 and PEG?
PPG is formed by the polymerization of propylene oxide, with certain hydrophobicity; PEG is formed by the polymerization of ethylene oxide, with strong hydrophilicity. The uses differ due to the difference in polarity, and they cannot be directly substituted.
4. How to handle skin contact with PPG-400?
Immediately rinse with water. Its irritancy is relatively low, and generally there will be no serious problems. If discomfort occurs, clean with soap water and observe. If the discomfort persists, seek medical attention.
