润滑剂选用注意事项

Precautions for the selection of lubricants

1、润滑剂的用量一般在0.5%~1%

1. The dosage of lubricants is generally in 0.5%~1%

2、聚合物的流动性能已满足成型工艺的需要，则主要考虑外润滑的作用，以保证内外平衡；

2, the flow property of polymer has met the needs of molding process. The effect of external lubrication is mainly considered to ensure internal and external balance.

3、外润滑是否有效，应以它能否在成型温度时，在塑料面层结成完整的液体薄膜为准，因此外润滑剂的熔点应与成型温度接近，但要相差10℃~30℃方能形成完整的薄膜；

3. Whether the external lubrication is effective or not, it is necessary to form a complete liquid film on the plastic surface at the molding temperature, so the melting point of the external lubricant should be close to the molding temperature, but the complete film can be formed at a difference of 10 ~30 C.

4、不降低聚合物的力学强度以及其他物理性能。

4, do not reduce the mechanical strength and other physical properties of polymers.

5、润滑效能高而持久；

5, the lubrication efficiency is high and lasting.

6、与树脂的相容性大小适中，内部、外部润滑作用的平衡；不喷霜、不易结垢；

6, compatibility with resin is moderate, internal and external lubrication is balanced, no frost and no scaling.

7、表面粘度小，在界面处的扩展性好，易形成界面层；

7, the surface viscosity is small, the expansion is good at the interface, and easy to form the interface layer.

8、本身的耐热性和化学稳定性优良，在加工中不分解、不挥发；

8, its heat resistance and chemical stability are excellent, and it does not decompose or volatilize in processing.

9、不腐蚀设备，不污染薄膜，没有毒性。

9, do not corrode equipment, do not pollute the film, no toxicity.