Who is affecting the strength of high-strength polypropylene yarn? ?

1. Melt index affects the strength of high-strength polypropylene yarn

Under the same spinning temperature, same draw ratio and process parameters, the lower the melt index of polypropylene chips, the higher the strength of high-strength polypropylene yarn.

In short, at a certain spinning temperature, when the melt index of the raw material is low, a higher strength can be achieved under the condition of a lower draw ratio. If the melt index of the raw material is higher, a larger draw is required Only multiples can achieve a certain intensity.

The strength of high-strength polypropylene fiber can reach 7.0～7.9cN/dtex, and it is widely used: filter cloth, geotextile, sling, conveyor belt, etc.

2. The stretching ratio affects the strength of the high-strength polypropylene yarn

As the draw ratio increases, the strength of the fiber increases, which has a greater impact on the strength of the fiber.

3. Stretching speed Stretching speed High-strength polypropylene fiber strength

In the one-step high-strength polypropylene yarn spinning line, the drawing speed is approximately equal to the spinning speed. The degree of orientation and crystallinity of the fiber are affected by the drawing speed in addition to the drawing factor.

Different drawing speeds, that is, different spinning speeds, have different fiber strengths, and the strength of high-strength polypropylene fiber decreases with increasing drawing speed.

If the same raw material is used, the finished product can reach the required strength by adjusting the drawing ratio, spinning speed, spinning temperature, steel blowing temperature and wind speed, etc. Through reasonable coordination of process parameters, high-strength, high-quality polypropylene yarn can be produced.

Xuzhou Heping Chemical Fiber Co., Ltd. is located in Xuzhou, Jiangsu. Over the years, it has focused on the development and production of high-strength polypropylene yarn. The high-strength polypropylene yarn produced by it has many excellent properties such as light weight, high strength, anti-aging, acid and alkali resistance, etc., which also makes high-strength polypropylene fiber. Silk can be applied to all aspects of our lives. Heping Chemical Fiber High-Strength Polypropylene Yarn is supplied by manufacturers with a complete range of products and high-quality after-sales service. Heping Chemical Fiber also has high-quality polypropylene industrial yarn, polypropylene high-strength yarn, high-strength polypropylene network yarn, polypropylene high-strength yarn, high-strength polypropylene yarn and split film industrial yarn.

If you want to know more product information, please contact: Mr. Wang 187 5178 8889 Website: http://www.xzhp.com/