What are the differences between Huimin Tailipolyacrylonitrile fiber and wool fiber in performance?

Mechanical properties

Strength and modulus:

The strength of polyacrylonitrile fiber is generally between 2-4cN /dtex, and the modulus is moderate. The strength of wool fiber is relatively low, generally around 1-1.7 cN/dtex, and the modulus is also relatively small. This makes Huimin Tailipolyacrylonitrile fiber less likely to be pulled apart than wool fiber when it is subjected to tensile and other external forces, and more able to maintain its shape. For example, in the production of fabric structures that require a certain strength, such as the fabric of outdoor tents, Huimin Tailipolyacrylonitrile fibers may be more suitable than wool fibers.

Elastic recovery:

Huimin Tailipolyacrylonitrile fiber has good elastic resilience and can recover quickly under small deformation. Wool fiber also has a certain degree of elasticity, but in comparison, Huimin Tailipolyacrylonitrile fiber has a stronger resilience. When the fabric is squeezed or stretched, the polyacrylonitrile-fiber fabric can be restored to its original shape more quickly, while the wool fabric may have a certain degree of deformation, which requires a certain amount of time or after ironing and other treatment to recover.

Thermal performance

Heat resistance:

Polyacrylonitrile fibers begin to soften at about 190-240 ° C and decompose at about 250-300 ° C. The heat resistance of wool fiber is poor, and irreversible changes will occur at about 100-130 ° C, such as yellowing and hardening. Therefore, in fabrics that need to be processed at high temperatures or used in high temperature environments, polyacrylonitrile fibers are more advantageous. For example, in some industrial fabrics that are hot pressed, or decorative fabrics that are close to heat sources, polyacrylonitrile fibers can better maintain performance.

Heat retention:

Wool fiber warmth is very good, this is because wool fiber has a natural crimp structure, these crimp can form a lot of static air layer between the fibers, and air is a poor conductor of heat, so it can effectively prevent the transfer of heat. Although the appearance of Huimin Tailipolyacrylonitrile fiber is fluffy and curly, it also has a certain warmth, but it is slightly inferior to wool fiber. However, through some special textile processes or combined with other warm materials, Huimin Taili polyacrylonitrile fiber fabrics can also achieve a better thermal effect.

Chemically stable

Acid and alkali resistance:

Huimin Tailipolyacrylonitrile fiber has good tolerance to general chemical agents (such as acids and bases). At room temperature, it can resist the erosion of weaker acid and alkali solutions. Wool fibers are more sensitive to acid and are easily damaged under acidic conditions, such as in acidic solutions such as dilute hydrochloric acid, the strength and toughness of wool fibers will be significantly reduced. However, the resistance of wool fibers to alkali is relatively good, and as long as it is not a strong alkali solution, it generally will not cause serious damage.

Light resistance:

Huimin Tailipolyacrylonitrile fiber is one of the best light resistant fibers in synthetic fibers, and the strength and color of the fiber are maintained at a high rate under long-term sunlight irradiation. The light resistance of wool fiber is relatively poor, long-term exposure to sunlight, wool fiber will appear yellow, brittle and other phenomena, its strength will also decline, mainly because ultraviolet light on the protein structure of wool fiber has a destructive effect.

Hygroscopicity and chromaticity

Hygroscopicity:

The hygroscopic property of Huimin Tailipolyacrylonitrile fiber is poor, and the moisture regain is generally between 1.2-2.0%. The moisture absorption of wool fiber is very good, and the moisture regain rate can reach 13-17%. This makes the wool fabric feel more comfortable to wear, absorbs sweat from the body, and maintains some breathability in humid environments. The polyacrylonitrile fiber fabric is relatively dry in a humid environment, but it is easy to produce static electricity.

Chromaticity:

Huimin Taili polyacrylonitrile fibers need to be dyed with specific cationic dyes, and the color after dyeing is bright and firm. There are relatively many types of dyes that can be used when dyeing wool fibers, including acid dyes, etc., and the color is relatively natural and soft after dyeing, but in some cases, the dyeing fastness of wool fibers may not be as good as that of polyacrylonitrile fibers. For example, after frequent washing, the color of the wool fabric may fade to a certain extent.

Shandong Huimin Taili Chemical Fiber Products Co., Ltd. was founded in 2017, the company now has the domestic advanced fiber production line, twisting production line. Anti-aging, acid and alkali resistance, low boiling water shrinkage, high breaking strength, low elongation, environmental protection and pollution-free. Widely used in chemical fiber rope net, fire hose, sling, safety belt, concrete, mortar, engineering fiber, etc., is to replace polyester, nylon, ethylene fiber, nylon, glass fiber new ideal material.