Selection Of Calcium And Zinc Stabilizers For Hard Products

- Jun 26, 2017 -

1. Due to the different components of calcium and zinc stabilizer and lead salt, the type and dosage of lubricant needed for calcium-zinc stabilizer during processing, it is necessary to pay attention to the change of the current of extruder host, the change of melt viscosity, and avoid the influence on the forming process.

2. Because the ordinary calcium zinc stabilizer thermal stability can be poor, temperature rise, screw speed speed up, product easy to change color, so its processing technology range is limited, processing temperature range is narrower, need to the equipment control accuracy requirements higher.

3. Because of the different selection of lubricating system in the calcium-zinc stability system, it is easy to increase the precipitation in actual production, which leads to the decrease of the appearance glossiness of the tubes, so it is necessary to pay attention to the selection and addition of lubricant.

4. Because of calcium and zinc stabilizer formula problem, if the formula is unreasonable, will cause its anti-aging performance to reduce, from the resistance caused by the deterioration of the tube resistance, resulting in the product yellowing, discoloration, so excellent calcium zinc stabilizer system is also a long-term stabilizer products to ensure that one of the factors.