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What is the reason for the polypropylene high strength wire? We together look.
1, the effect of melt index
The melt index of the raw material represents a degree of raw material molecular weight, and under the same process conditions, the amount of fibers increases. The molecular entanglement is large, and when the strength of the tensile fibers increase the molecular weight as the molecular weight is increased, the molecular chain is easily pulled off, and the fiber is reduced. During the polypropylene spinning process, several different melt index raw materials were used.
During the test texture, the melt index of the raw materials is different under completely identical process conditions, and the strength of its finished polypropylene is different, and there is a certain regularity.
Under the same spinning temperature, the same tensile number and its process parameters are also identical, the lower the melt index of the polypropylene slice, the higher the strength of the polypropylene high strength.
2, the effect of stretching multiple
The stretching process of the initial fiber is to destroy the original structural form of the newly-bobular, generate a new sequential structure, increase the activity of the macromolecular segment under the action of tensile stress and thermal effect, and various structural units slide the fibers. The axial orientation aggregation, rearrangement, increase the new binding point, so that more molecular chains of the fibers are in particular stress, and generate the regularity of the three-dimensional structure (ie crystalline), the fiber density increases with the increase of the draw ratio. . As the tensile fact increases, the strength of the fibers increases, and the intensity of the tensile multiples is large.
Xuzhou Heping Chemical Fiber Co., Ltd. is located in Xuzhou, Jiangsu. It has focused on the research and development and production of polypropylene, high strength, high strength, high strength, high strength, anti-aging, acid and alkali resistant, etc., which also make polypropylene high strength. Wire can be applied to all aspects of our lives. Peaceful chemical polypropylene, manufacturers supply, complete products, high quality after-sales service, users can rest assured to buy. Peace chemical fiber also has a polypropylene industrial silk, polypropylene high strength wire, high-strength polypropylene wire, polypropylene high strength, high-strength propylene, and hydrazine industrial wire.
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