The polypropylene staple fiber is made by spinning a high-quality polypropylene raw material through a high-temperature melting and then a spinning system composed of a spinneret and an external circular transverse blowing system, and then being formed by a barrel, a draft, a curl, a cut, and the like. polypropylene staple fiber has excellent moisture permeability and fast drying property, and is resistant to acid and alkali. It is generally used in the fields of thermal insulation materials, textile garments, industrial geotextiles, etc. However, with in-depth research, polypropylene staple fiber can also be applied. In the field of refrigeration.

With the constant demand for low-temperature environments in various fields such as biotechnology, hospitals, and energy, small-scale cryogenic refrigeration devices have been rapidly developed. Refrigeration devices are also increasingly demanding the refrigeration temperature, efficiency, stability, size, weight and service life of the chillers used in space. The development of high-efficiency, compact and lightweight cryogenic refrigeration devices has become a research hotspot of space cryogenic technology.

The material, structure and thermal properties of the polypropylene staple fiber in the regenerator as the filling medium determine the key factors of the regenerator performance. The axial pressure drop of the regenerator of different packing structures is tested. A stainless steel wire mesh, a sintered wire mesh, a roof key sheet, and the like are laminated. In order to meet the needs of low temperature, the porous medium filler in the regenerator must have a large heat transfer area, small axial heat conduction and small pressure drop. Therefore, the porous medium filler should use polypropylene staple fiber as the main filler, and we also have polypropylene staple fibers. The structural properties have been analyzed to varying degrees, and the development of polypropylene staple fibers in other fields is also optimistic.

Hai'an County Qinfeng Chemical Fiber Co., Ltd. is a company specializing in the production, research and development and sales of polypropylene staple fiber, polyester staple fiber, functional polypropylene staple fiber and PP staple fiber. It is based on innovation and sets a good example for the industry. Its polypropylene short fiber main specifications 1.5D to 200D, length 5-150mm, product color is complete, a wide variety, support color to map or sample custom. Qinfeng will always adhere to the business philosophy of “pursuing excellence and creating brilliance”. We sincerely look forward to your call!

For more product information, please contact: Mr. Qian 13962787918, 13813743991 Website: http://www.glory-fiber.com/