In the source of non-woven fabric raw materials, there are both natural fibers, such as wool, etc; Inorganic fibers, such as glass fibers, metal fibers, and carbon fibers; Synthetic fibers, such as polyester fibers, polyamide fibers, polyacrylonitrile fibers, polypropylene fibers, etc. Among them, synthetic fiber non-woven fabrics are widely used, so polyester fibers and polypropylene fibers often appear in front of people’s eyes. So what is the difference between these two?
Different production principles
Polyester fiber is mainly made of polyester as the main raw material, with a certain amount of functional masterbatch added. The product density is 136g/cm3, and it is soluble in solvents such as phenol tetrachloroethane and ortho chlorophenol. It has extremely low moisture absorption, acid resistance, high chemical stability compared to polyamide, and good light resistance. The fibers are not brittle or deformed within a temperature range of -40 ℃ to+250 ℃. Each fiber is independent and has strong adsorption properties with asphalt, which is also a petroleum product. It has good adsorption and dispersion properties in the medium.
Polypropylene fiber is a high-strength polypropylene bundle like monofilament fiber prepared by heating propylene based monomers to high temperature and adding catalysts for polymerization. It has the characteristics of simple blending process, low cost, and excellent performance.
Different properties
1. In terms of physical properties:
Polypropylene is relatively lightweight and has high fiber strength, but its wear resistance and high temperature resistance are poor. Polyester fibers have high tensile strength and durability, as well as heat and chemical resistance, resulting in a longer service life.
2. In terms of chemical properties:
Polypropylene has relatively stable chemical properties, is not easily corroded by acids, alkalis, etc., and does not contain toxic and harmful substances. Polyester fiber contains a benzene ring structure and has a certain degree of corrosion resistance.
3. In terms of environmental friendliness:
Polypropylene is a thermoplastic material that is not easily biodegradable and pollutes the environment. Polyester fibers can be degraded by microorganisms and will not cause pollution to the environment.
Different application fields
Due to its excellent acid and alkali resistance and low moisture absorption, polypropylene fiber is widely used in fields such as medical and health products, outdoor products, industrial filtration, and protective equipment. For example, medical masks, surgical gowns, and disposable protective clothing are all produced using polypropylene materials; Tents, waterproof clothing, and other outdoor products are often made of polypropylene fiber materials.
Polyester fibers are widely used in fields such as textiles, clothing, industrial fabrics, and glass fiber reinforced plastics. For example, polyester fiber materials can be used to produce textiles such as clothing, underwear, bedding, curtains, and blankets; In addition, polyester fibers are also widely used in the production of glass fiber reinforced plastic products.
Conclusion
In summary, although polypropylene and polyester fibers have some similarities in appearance and characteristics, there are significant differences in their production principles, property characteristics, and application fields, and suitable fiber materials need to be selected according to actual needs.
Dongguan Liansheng Nonwoven Fabric Co., Ltd., a manufacturer of non-woven fabrics and non-woven fabrics, is worthy of your trust!
Post time: Jul-01-2024