Alkali-resistant penetrant AEP (fatty alcohol polyoxyethylene ether phosphate) is an anionic surfactant that is easily soluble in water. In practical use, it can be directly mixed uniformly with cold or warm water and then added to the working fluid system. With its excellent chemical stability, this product is especially suitable for high-concentration alkali bath environments. It can maintain excellent penetration and wetting properties even under conditions of up to 200g/L sodium hydroxide, which is not achievable by most ordinary penetrants.
To ensure its full efficacy, it is recommended to pre-mix AEP with a measured amount of water into a uniform liquid, and then slowly add it to the main working fluid under stirring. When preparing alkaline working fluids, the usual dosing sequence is: first add auxiliaries like AEP to water, mix thoroughly, and then add solid caustic soda. This takes advantage of AEP's dispersibility and avoids direct contact with high-concentration alkali liquor, which could cause local performance issues due to heat generation. In processes requiring long standing times like cold pad-batch, its low-foaming property and sustained penetration ability ensure uniform coverage and deep wetting of the treatment liquid on the fabric.
The optimal dosage is comprehensively influenced by factors such as the substrate being treated (cotton, blends, leather, metal), bath ratio, alkali concentration, temperature, and treatment time. The database does not provide a fixed absolute dosage. Therefore, we strongly recommend conducting small-scale trials based on your specific process conditions before use to balance cost and treatment effect and determine the most economical dosage for your production flow.
The following are key physicochemical indicators of alkali-resistant penetrant AEP for reference in formulation design (Data source: Guoli Chemical Product Database):
| Item | Parameter |
|---|---|
| Appearance | Colorless to light yellow transparent liquid |
| Active Content | ≥98.0% |
| Ionic Type | Anionic |
| pH (1% Aqueous Solution) | 5.0~7.0 |
| HLB Value | 11~12 |
| Penetrating Power (Standard Canvas Sinking Method) | ≤10 seconds |
| Alkali Resistance Stability | Can withstand 200g/L NaOH |
| Foaming Property | Low foam |
| Surface Tension (1% Aqueous Solution) | 30~35 mN/m |
Note: The database currently does not have fixed recommended dosage parameters for specific application scenarios. The actual dosage should be determined by user trials.
Based on the application fields recorded in the Guoli Chemical Database, we provide the following reference dosage ranges and process suggestions for your testing and verification:
The above ranges are general estimates based on product characteristics, not fixed standards. The final dosage must be determined through systematic experiments based on your specific raw materials, equipment, and water quality conditions.
Please strictly follow the requirements of the product safety data sheet during operation: