What are the performance characteristics of polypropylene POY filament?
What are the performance characteristics of polypropylene POY filament?
The performance characteristics of polypropylene POY filament (polypropylene fiber pre-oriented filament) are closely related to the properties of its raw materials and production processes. Specifically, they can be summarized as follows:
1. Outstanding mechanical properties
High strength and toughness: During the spinning process, after pre-orientation treatment, the filament has a high breaking strength and initial modulus, can withstand a large tensile force, and is not easy to break.
Excellent wear resistance: The fiber surface is smooth and the molecular structure is dense, with strong wear resistance. The products made from it (such as ropes and fabrics) have a long service life.
Certain elasticity: It has a moderate elastic recovery rate and can partially return to its original shape after being stretched by external force, making it suitable for manufacturing textiles that require certain elasticity (such as sportswear).
2. Strong chemical stability
Acid and alkali resistance: It has excellent resistance to most acid, alkali, salt solutions and organic solvents, and is not prone to chemical degradation. It is suitable for use in complex environments such as industrial or outdoor Settings.
Antimicrobial property: It is not easily eroded by mold, bacteria and other microorganisms. It is not prone to mold or rot even after long-term use, and has good hygiene performance.
3. Excellent physical properties
Lightweight: With a density of approximately 0.91g/cm³, it is the lightest among common synthetic fibers. Products made from it (such as clothing and home textiles) are light and comfortable, suitable for summer or sports scenarios.
Good hydrophobicity: The fiber itself does not contain hydrophilic groups and has extremely low moisture absorption (moisture regain rate is only 0.03%). Its strength hardly decreases in the wet state, making it suitable for making fishing nets, water filtration materials, etc.
Excellent thermal insulation: The internal structure of the fiber is fluffy, which can retain a lot of air and has a certain heat insulation and thermal insulation effect. It can be used as a filling material for winter clothing or home textiles.
4. Good weather resistance and processability
Uv resistance: After appropriate modification, it has a strong tolerance to ultraviolet rays and is not prone to aging or brittleness due to light exposure, making it suitable for outdoor products (such as sunshade nets and tent fabrics).
Moderate heat resistance: It can maintain stable performance within the range of -70 ℃ to 100℃, and the short-term operating temperature can be even higher, meeting the temperature requirements of most textile processing (such as dyeing and setting).
Processability: It has excellent spinnability and stretchability, and can be further processed into products such as DTY (stretchable filament), and is also easy to blend with other fibers.
5. The dyeing performance needs to be optimized but can be improved
Due to its tight molecular structure and lack of polar groups, the direct dyeing of virgin polypropylene POY filament is rather difficult. However, through raw material modification (such as adding color masterbatches) or post-treatment (such as plasma treatment), good dyeing effects can be achieved to meet diverse color requirements.
These performance characteristics make polypropylene POY filament have extensive application value in multiple fields such as clothing, home textiles, industry, and agriculture.
Ningbo Dazhong Chemical Fiber Industry Co., Ltd. has been engaged in the long-term production and operation of: polypropylene filament, polypropylene filament, polypropylene FDY filament, polyester staple fiber, polypropylene fully drawn filament, polypropylene POY filament, and polyester POY filament.
Ningbo Dazhong Chemical Fiber Industry Co., Ltd. has an annual production capacity of 15,000 tons of various colored polypropylene filament, polypropylene POY filament, polypropylene PR-strength filament and polypropylene FDY filament ranging from 68 to 1800D, and 120,000 tons of melt direct-spun polyester staple fiber annually. The products include short fiber products with silicon, silicon-free and down imitation from 1.2D to 15D. The annual production capacity of melt direct-spun polyester POY filament is 100,000 tons.