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What are the factors that affect the breaking elongation of polypropylene high-strength yarn for safety nets?
Polypropylene high-strength yarn has very excellent properties, so that it can be used to make safety nets. What are the factors that affect the breaking elongation of polypropylene high-strength yarns for safety nets?
1. Spinning temperature
In the spinning process of polypropylene high-strength yarn, we use the same drawing multiple and different spinning temperature, and the physical properties of polypropylene high-strength yarn will be different. When the spinning temperature becomes higher, the elongation of the polypropylene high-strength yarn will become higher.
2. Side blowing temperature
Experiments have shown that the side blowing temperature has little effect on the elongation of polypropylene high-strength yarns, but too low a temperature will affect the quality of polypropylene high-strength yarns and need to be kept at a certain temperature.
3. Heat setting temperature
Lowering the heat setting temperature can increase the shrinkage rate and elongation rate of polypropylene high-strength filament fibers.
4. Drafting multiple
Within a certain range, the higher the draft ratio, the lower the elongation of the polypropylene high-strength silk fiber.
5. Strength of polypropylene high-strength yarn
The strength of polypropylene high-strength yarns has an inverse relationship with elongation. Under the same process conditions, the stronger the strength of polypropylene high-strength yarns, the lower the elongation.
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