Among the family of chemical fiber materials, polypropylene filament is highly favored for its excellent durability and cost performance. Among them, polypropylene common strength filament and polypropylene high-strength filament are two common types. They are of the same origin and origin, but also play roles in different fields due to their performance differences.
By definition, both are made from polypropylene as the main raw material through melt spinning. Polypropylene common strength filament is a basic product. Its production process is relatively conventional and it is suitable for scenarios where strength requirements are not high. Polypropylene high-strength filament is an "advanced version". By optimizing the raw material formula and improving the spinning process, key performance indicators such as strength and modulus have been significantly enhanced.
In terms of performance comparison, polypropylene high strength yarn has obvious advantages. The breaking strength of common strength filament is generally 3-4 CN /dtex, while that of high-strength filament can reach 5-7 CN /dtex, which is approximately 1.5 times that of common strength filament. In terms of wear resistance and tensile strength, high-strength filaments also perform exceptionally well, being able to withstand greater external forces without easily breaking. Take woven bags as an example. Bags made of common strength filament are prone to wear and tear when carrying heavy objects, while high-strength filament woven bags can handle long-distance transportation and heavy object loading.
The production process is the key to causing performance differences. Common strength filament adopts the ordinary melt spinning technology, and the parameters such as spinning temperature and speed are set conventionally. The production of high-strength filaments requires precise control of temperature and stretching ratio. Through processes such as high-speed spinning and multi-stage stretching, the molecular chains of polypropylene are highly oriented, thereby enhancing the strength of the fibers.
The application scenarios determine the division of labor between the two. Polypropylene common strong filament is often used to make ordinary civilian fabrics, such as home decorative fabrics and inner linings of daily clothes. In the agricultural sector, sunshade nets and insect-proof nets made of common strong filament meet basic protection needs. High-strength filament mainly focuses on industrial applications, such as tire cord, lifting slings, geogrids, etc. These scenarios have extremely high requirements for material strength and stability. High-strength filament has become the preferred choice due to its excellent performance.
Polypropylene common strength filament and high-strength filament are like the "basic version" and the "enhanced version". The former meets the daily basic needs, while the latter overcomes the challenges of high-strength applications. Together, they form a rich product system of polypropylene filament, providing suitable material solutions for different industries.
Guangdong Qingyuan Yitong Weaving Co., Ltd. specializes in the production and sales of pp yarn, polypropylene high strength yarn, polypropylene light body yarn, polypropylene high strength yarn, 300D polypropylene polypropylene yarn, polypropylene network yarn, polypropylene twist yarn, 300D polypropylene high strength yarn, 1200D polypropylene high strength yarn, anti-aging polypropylene yarn, anti-static polypropylene yarn, Yitong polypropylene twist yarn, etc.
Qingyuan Yitong weaving Co., LTD
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Domestic business: He Shanbin
Tel: 0763-6812222
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Foreign business: Landy
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