Regarding the introduction of polypropylene yarn, let us start with its advantages. The particularly good advantage of polypropylene yarn is that it has a light texture and a density of only 0.91 g/cm2, which is a relatively light density of common chemical fibers, so that the same weight of polypropylene can obtain a higher coverage area than other fibers.

1. The polypropylene yarn has high strength, large elongation, high initial modulus and excellent elasticity. Therefore, the polypropylene yarn has good abrasion resistance. In addition, the wet strength of polypropylene is basically equal to dry strength, so it is an ideal material for making fishing nets and cables.

2. The polypropylene yarn is almost non-hygroscopic, but the wicking ability is very strong, and the moisture wicking effect is obvious. The general moisture regain rate under atmospheric conditions is close to zero.

3. Polypropylene has good electrical insulation, but it is easy to generate static electricity during processing.

4. Polypropylene has small thermal conductivity, good thermal insulation and high strength. The strength of polypropylene elastic yarn is second only to nylon, but the price is only 1/3 of nylon. The fabric is stable in size and wear-resistant and elastic. Chemical stability it is good.

The chemical molecules of polypropylene yarns are also very different and are composed of polypropylene fibers. Polypropylene has good heat resistance, and the product can be sterilized and sterilized at a temperature of 100 ° C or higher, and is not deformed at 150 ° C under the condition of no external force. The embrittlement temperature is -35 ° C, embrittlement occurs below -35 ° C, and the cold resistance is not as good as polyethylene.

The reported values for the glass transition temperature of polypropylene are 18qC, 0qC, 5°C, etc., which is also because people use different samples, in which the ratio of crystal phase to amorphous phase is different, so that the chain length of the amorphous part in the molecular chain is different. Caused. The melting temperature of polypropylene is about 40-50% higher than that of polyethylene, about 164-170 ° C, and the melting point of 100% isotactic polypropylene is 176 ° C.

Polypropylene has good chemical stability. Besides being attacked by concentrated sulfuric acid and concentrated nitric acid, it is stable to various other chemical agents, but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons can soften polypropylene and Swelling, while its chemical stability increases with the increase of crystallinity, so polypropylene is suitable for making various chemical pipes and fittings with good anti-corrosion effect. It is because there are so many good points that the role of polypropylene yarn is increasing and the market is getting bigger and bigger.

Fujian Jinquan Chemical Fiber Products Co., Ltd. adheres to the spirit of Jinjiang people's love to fight, professional production: polypropylene recycled yarn, polypropylene hollow yarn, pp yarn, polypropylene light body yarn, polypropylene yarn and other products, and support to sample custom, fully satisfied Customer's individual needs.

For more product information, please contact: Mr. Yao 13506902333 Website: http://www.jqfibre.com/index.html