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What are the advantages of polylactic acid fibers in terms of physical properties
source：www.03559659.cn | Release time：2025-03-111. Mechanical properties
High strength: Polylactic acid fiber has a certain tensile strength, with a single fiber strength generally between 3.5-5.0 cN/dtex. Compared with traditional natural fibers such as cotton and wool, it has better strength and can meet the requirements of general textile use. It can be used to make various clothing, home textiles and other products, and is not easily broken during use.
Good wear resistance: The fiber has relatively good wear resistance. After multiple frictions, the surface of the fiber is not easily pilled or damaged, and the resulting clothing and other products can maintain good appearance and performance during daily wear and washing, extending their service life.
2. Thermal performance
High melting point: The melting point of polylactic acid fibers is usually around 150-180 ℃, which gives them good thermal stability within a certain temperature range. During conventional processing and use, they are not easily deformed or melted due to heat, and can adapt to various processing techniques and usage environments.
Low thermal conductivity: Polylactic acid fiber has a low thermal conductivity and good insulation performance, which can effectively block the transfer of heat. The products made from it, such as clothing and home textiles, can provide people with a warm and comfortable user experience, and have good insulation effect in cold seasons.
3. Optical performance
Good glossiness: Polylactic acid fiber has a natural and soft luster, which can be comparable to some natural fibers. The fabric made from it has a good visual effect, bright colors, and can add beauty to textiles. It is suitable for making various fashionable clothing and accessories.
Adjustable Transparency: By changing the production process and adding different additives, the transparency of polylactic acid fibers can be adjusted to have different optical properties from semi transparent to opaque, meeting the transparency requirements of different products and expanding their application fields. For example, they have unique advantages in packaging materials, decorative materials, and other areas that require special optical effects.
4. Other performance indicators
Good dimensional stability: Polylactic acid fibers have small dimensional changes under moisture absorption or water contact, and have good dimensional stability. The textiles made from them are not prone to shrinkage, deformation and other problems during washing and wearing, and can maintain their original shape and size, improving the quality and performance of the product.
UV resistance: Polylactic acid fiber has a certain absorption and blocking effect on ultraviolet rays, with good UV resistance, which can protect human skin from UV damage. Outdoor clothing, sunshades, and other products made from it can provide certain sun protection function, reducing the damage of ultraviolet rays to the human body.
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