What are the factors that affect the specific resistance of polypropylene staple fiber?

polypropylene staple fiber is a post-processed product of polypropylene, and the specific resistance as an index to measure the electrostatic properties of polypropylene staple fiber has an important application in actual production. Experimental research shows that the factors that affect the specific resistance of polypropylene staple fibers are: oil roller speed, oil composition, oil uniformity, ambient temperature and humidity.

1. Oil roller speed

The oil roller speed has a great influence on the specific resistance of the polypropylene staple fiber. The oil roller speed should be adjusted to control the oil content of the polypropylene staple fiber to 0.5%~0.65% to ensure the normal operation of production.

2. Oil composition

The properties of the oil agent have a greater influence on the specific resistance of the polypropylene staple fiber, and the specific resistance will be different when different oil agents are used.

3. The uniformity of the oil

The uneven dispersion of the oil will cause the specific resistance of the polypropylene staple fiber to change.

4. Ambient temperature and humidity

When measuring the specific resistance of the sample, the ambient temperature and humidity should be strictly controlled to obtain accurate analysis results. The temperature is (20±2)℃ and the humidity is (65±3)%.

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