Modacrylic Fibers

Properties

Modacrylic is a modified acrylic fiber that is composed of less than 85%, but at least 35% by weight of acrylonitrile monomer. Typical co-monomers are vinyl chloride, vinylidene chloride or vinyl bromide. Thes substances are added to the fiber to give it better flame retardant properties.

Modacrylic fibers have outstanding resistance to many chemicals and solvents, and are not attacked by moths and mildew.
Most of its properties are similar to acrylics. They can be easily dyed, are strong, resilient, and have good dimensional stability. Unlike acrylics, modacrylics are flame retardant and do not burn. Its durabiltiy is comparable to wool, that is, its abrasion resistance and tenacity is rather low.

Modacrylic Fiber Properties

Tensile Strength (Tenacity) Fair - Good
Abrasion Resistance Fair - Good
Absorbency Poor
Static Resistance Fair - Poor
Heat Resistance Fair
Wrinkle Resistance Good
Resistance to Sunlight Excellent
Elasticity Good
Flame Resistance Does Not Burn
Resilience Good

 

COMMERCIAL Modacrylic Fibers

The major manufacturer and suppliers of modacrylic fibers are Kaneka and Aramid HPM.

 

Applications

Major uses of modacrylic fibers include faux fur, wigs, hair extensions and protective clothing.

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