Polymer Emulsifier Usage Process

Hangzhou Yinhu Chemical/Zhejiang Dachuan Co., Ltd. Manager Luo 15064652211

I. Feeding Sequence and Production Process:

1. First, add clean water to the shear emulsification kettle and open the steam valve for heating.

2. When the water temperature reaches above 80 degrees Celsius, start the shear emulsification kettle and add the dispersant.

3. Slowly add our company's AKD polymer emulsifier.

4. While continuing to heat, uniformly and continuously add AKD wax powder raw material.

5. After the AKD wax powder raw material is completely melted, control the temperature at 80-85 degrees Celsius and mix thoroughly with shear emulsification for 20-30 minutes.

6. The thoroughly mixed and shear-emulsified emulsion is homogenized using a homogenizer.

7. Immediately after homogenization, transfer it to the finished product mixing kettle, mix thoroughly with melted iron-free aluminum sulfate and zirconium oxychloride, adjust to the required concentration and pH, then discharge.

II. Precautions:

1. The ratio of clean water to wax powder raw material (preferably from Kemira or Yihai) is generally controlled at 2:1.

2. The shear emulsification temperature is generally controlled at 80-85 degrees Celsius.

3. The dosage of dispersant N (preferably from Shanghai Tiantan) is best controlled at around 3 kg per 100 kg of wax powder raw material.

4. The dosage of AKD polymer emulsifier is best controlled at 20-25 kg per 100 kg of wax powder raw material. For high-efficiency, high-quality surface sizing, increase to 30-35 kg per 100 kg of wax powder raw material. Higher dosage improves emulsification effect, water resistance, curing rate, curing speed, rewinding moisture regain, and overall performance.

5. The homogenizer pressure is best controlled at 20-25 MPa.

6. The dosage of zirconium oxychloride is best controlled at 2-5 kg per ton of glue (fine-tuned based on the principle of more in summer and less in winter). Due to its strong corrosiveness, it is best added to the mixing kettle rather than the emulsification kettle, as passing it through the homogenizer can cause significant damage.

7. The dosage of iron-free aluminum sulfate is best controlled at 80-250 kg per ton of glue.

8. The pH of the finished glue is generally controlled at 2-4 for optimal results.

9. The concentration of the finished glue is generally controlled at 12.5-30%.

10. Store in a well-ventilated, cool warehouse and use as soon as possible. The storage period is three months.

Note: Due to differences in pricing, customer requirements, equipment conditions, and production processes among different units, the above process is for reference only. Adjustments should be made based on actual conditions during production.