Penetrant JFC-2 should be pre-diluted with warm water before use, then added to the working solution according to process requirements. The recommended dosage varies by application area, typically in the range of 0.1% to 5 g/L.
Detailed Description
Penetrant JFC-2 (isooctanol polyoxyethylene ether) is a nonionic surfactant, appearing as a colorless to light yellow viscous liquid. Due to its relatively high viscosity (approximately 240 mPa·s at 25°C), direct addition to a large volume of cold working solution may result in slow dispersion. It is recommended to pre-dilute it by stirring with a small amount of warm water (40~50°C) until a flowable, thin consistency is achieved, then slowly add it to the main working solution with thorough stirring to ensure uniform dispersion.
This product has an HLB value of 13.5, is readily soluble in water and organic solvents such as alcohols and ketones, and exhibits good compatibility with anionic, cationic, and amphoteric auxiliaries. According to data from the Guoli Chemical laboratory, the penetration power of a 0.1% aqueous solution is ≤5 seconds (standard canvas sinking method), indicating efficient wetting and penetration at very low concentrations, making it a versatile rapid penetrant.
The product can withstand acidic, alkaline, and hard water environments, with a cloud point of 65~70°C. It is recommended to operate within a normal to medium temperature range (20~60°C), avoiding use near or above the cloud point to maintain solution stability and optimal penetration performance.
Technical Parameters
| Parameter | Value |
|---|
| Appearance | Colorless to light yellow viscous liquid |
| Active Content | ≥99.0% |
| HLB Value | 13.5 |
| Cloud Point | 65~70°C |
| Penetration Power (0.1% aqueous solution) | ≤5 seconds |
| Surface Tension (1% aqueous solution) | Approximately 30 mN/m |
| Critical Micelle Concentration (CMC) | Approximately 130 mg/L |
| pH Value (1% aqueous solution) | 5.0~7.0 |
| Density | 1.06~1.07 g/cm³ |
| Flash Point | >200°C |
(The above parameters are from Guoli Chemical product quality inspection data)
Application Recommendations
The Guoli Chemical database does not have precise recommended dosage data for each application area. The following reference ranges are based on product performance parameters (penetration power, CMC, HLB value) and general industry experience. Users should determine the optimal dosage through small-scale tests based on actual process conditions:
- Textile printing and dyeing pretreatment (desizing, scouring, bleaching): Recommended dosage 0.5~2 g/L. Within this concentration range, JFC-2 can quickly wet fibers and promote the penetration of alkali liquor and bleaching agents into the fabric interior, significantly shortening pretreatment time.
- Dyeing leveling agent: Recommended dosage 0.2~1 g/L. Utilizing its nonionic wetting and solubilizing properties to promote uniform dye uptake and reduce color defects.
- Leather soaking and degreasing: Recommended dosage 0.3~1.5 g/L. Accelerates hide softening and enhances the penetration efficiency of degreasing agents into the leather deep layer.
- Industrial hard surface cleaning/metal degreasing: Recommended dosage 0.5~3 g/L, used in combination with alkaline cleaners. JFC-2's low surface tension helps the cleaning solution spread quickly and penetrate beneath the oil layer, achieving deep stripping.
- Pesticide formulations (wetting and penetration adjuvant): Recommended dosage 0.5%~5% of the total formulation. The surface tension of a 1% aqueous solution is approximately 30 mN/m, effectively improving the spreading and penetration ability of the spray liquid on hydrophobic plant leaf surfaces.
- Paper machine felt cleaning: Recommended dosage 0.1~1 g/L. At low concentrations, it can penetrate into the felt fiber gaps to help remove resin and filler deposits.
Precautions
- Pre-dilution operation: The product has high viscosity. It is recommended to pre-dilute with warm water before adding to the main working solution to avoid uneven dispersion due to local high concentration.
- Addition sequence: When compounding with anionic auxiliaries, add JFC-2 to water and stir well first, then add the anionic component to avoid forming a viscous gel that affects dispersion.
- Foam control: This product has moderate foam performance. If foam issues arise in high shear or spraying processes, a small amount of organic silicone defoamer may be used.
- Personal protection: Wear chemical-resistant protective gloves and safety goggles during operation to avoid direct skin and eye contact. GHS classification: Skin irritation Category 2, Eye irritation Category 2A.
- Environmental safety: Harmful to aquatic life with long-lasting effects. Waste liquid after use must be properly collected and treated, and not discharged directly into water bodies.
- Storage: Recommended storage temperature 5~35°C, keep sealed in a cool and ventilated place away from strong oxidizers.
