Peregal O-50/100 has excellent performance at high EO polymerization degrees but is highly sensitive. Common problems during use are mainly concentrated in three categories: insufficient dissolution, emulsion stratification, and high-temperature performance fluctuations. The first step should be to strictly check the material temperature: Peregal O-50 is a waxy solid that needs to be stirred in hot water at 40~60°C until completely dispersed (cold water only yields a dispersed state); although Peregal O-100 can be dissolved in water at room temperature, if the formula contains a high concentration of electrolytes, it is recommended to still use warm water for pre-dissolution to ensure complete molecular chain extension. The second step is to check water hardness and pH: This product has excellent hard water resistance and wide pH tolerance, but if the calcium and magnesium ions in the water are extremely high (>500 ppm), it may still slightly reduce emulsification efficiency due to the "bridging effect". This can be verified by adding a small amount of chelating agent to improve the effect. The third step is to check the addition sequence: In emulsion polymerization or pesticide formulations, Peregal must be completely dissolved to form micelles before introducing the oil phase or active ingredients. If oil is added first and then the emulsifier, it is very easy to cause "emulsion inversion" failure.
If the above basic measures still cannot solve the problem, please record the following key parameters according to the specific application scenario: system temperature curve, stirring intensity (shear rate), and variation point of oil phase/aqueous phase components. This will greatly shorten the diagnostic time of the application engineer at Guoli Chemical.
Regarding technical support, you can directly call the sales service department of Hai'an Guoli Chemical Co., Ltd., or submit the problem description and sample batch number through the "Technical Consultation" channel on the official website. Engineers will provide a preliminary troubleshooting plan within 24 working hours. For bulk purchasing customers, Guoli Chemical can arrange engineers to conduct on-site small-scale optimization adjustments.
| Phenomenon | Possible Cause | Troubleshooting Direction | Emergency Treatment Plan |
|---|---|---|---|
| Waxy solid floats on water surface, does not dissolve for a long time | Water temperature too low, insufficient stirring | Confirm whether the water temperature reaches 40~60°C and whether stirring forms a vortex | Slowly heat up to 50°C, increase stirring intensity, add in batches (do not add all at once) |
| Emulsion stratification/oil-water separation within 24 hours | Insufficient dosage, disturbance from high salt system, oil phase polarity mutation | Check if the addition amount is lower than the value determined in small-scale tests, test water conductivity | Temporarily supplement 0.5%~1% Peregal O-50/100, mix with anionic emulsifier to enhance the double stabilization layer |
| Uneven high-temperature dyeing/color spots | Low cloud point, insufficient leveling time, too fast heating/cooling rate | Verify if the cloud point of Peregal O-100 is ≥100°C, confirm the dyeing process curve | Supplement Peregal O-100 to extend the high-temperature leveling stage by 5~10 minutes, control the heating rate ≤1°C/min |
| Low-foaming feature fails/significant foam generation | Mixing with anionic foaming components, excessive shear introducing air | Check if strong foaming agents like LAS/AES were added by mistake, whether the stirring paddle introduces air | Reduce stirring speed, add a small amount of organic silicone defoamer (100~200 ppm) for emergency treatment |
To reduce the probability of usage problems from the source, it is recommended to conduct small-scale gradient tests before first application or formula adjustment: fix other components, only change the addition amount of Peregal O-50/100 (range 0.5%~5%) and the material method, evaluate emulsion stability (centrifugation at 3000 rpm×30 min), particle size distribution, and thermal storage stability (54°C×14 days). For high-salt systems (such as anti-rust emulsified oil, concentrated pesticide formulations), it is recommended to use a combination of Peregal O-50 and Peregal O-100, utilizing the difference in EO numbers to form a wide stability range. The empirical ratio O-50:O-100 = 3:1~1:1 can cover most scenarios. Our company can provide free sample plates and recommended starting formulas.