What are the factors that affect the intensity of polypropylene high-strength fibre?
1. The impact of the melting index
The melting index of the raw material represents the height of the molecular weight of the raw material to a certain extent. Under the same process conditions, the fiber volume increases. When the molecular entanglement is large, the intensity of the stretch fiber is low with the increase of the molecular weight and the molecular weight is low, and the molecular chain is prone to slipping, which is manifested in the fiber strength. In the process of polypropylene high-strength fibretexture, several different melting indexes were used.
During the test spinning process, it was found that under the same process conditions, the melting index of the raw material was different, the strength of the finished product was different, and it showed a certain regularity.
Under the same conditions of the same spinning temperature, the same stretching multiple and its process parameters, the lower the melting index of polypropylene slices, and the higher the intensity of the polypropylene high-strength fibre of the proprcells.
2. The effect of stretching multiple
The stretching process of new fibers is to destroy the original structure of the newborn fiber and generate a new preface structure. Under the action of stress stress and thermal effects, the mobility of the macromolecular chain segments increases, and various structural units slide fibers with fibers. Gathering axial orientation, reorganizing and increasing new binding points, so that more molecular chains of the fiber are in a particularly good stress tolerance state, and the regularity of the three -dimensional structure (ie, crystallization), the fiber density increases with the increase of the stretch multiplier and increases. Essence
With the increase of the stretch multiple, the strength of the fiber increases, and the stretch multiple contributes to the strength of the fiber.
Jiangyin Golden League Textile Co., Ltd. is a manufacturer specializing in products such as high -strength beater industrial silk, engineering fiber, high -strength propelion wire, weaving geomorphin cloth and pallopylion night light silk. Industrial zone, transportation is very convenient.
Polypropylene high-strength fibre has the advantages of environmental protection, non -toxic, acid resistance, alkaline resistance, light weight, low heat contraction rate, low heat conduction, less static savings, almost no hygroscopic absorption, etc. The products have great potential in terms of industrial silk, which can be widely used in wide use. In the aspects of industrial suspension, seat belt, conveyor belt, weaving geomorphic cloth, filtering cloth, puffing canvas, cables, cables, cables and other industries, it is part of the novel textile materials that replace nylon and polyester.
What are the factors that affe
