Product Introduction
Polypropylene fiber is a synthetic fiber made of isotactic
polypropylene produced by propylene polymerization technology.
Polypropylene fiber has high strength, good elasticity, wear
resistance, corrosion resistance, good insulation and warmth
retention, but poor moisture absorption and dyeability, poor heat
resistance and aging resistance, and very light weight.
Polypropylene fiber is also a new type of concrete reinforcing
fiber, known as the secondary reinforcement of concrete.
Performance characteristics
(1) Lightweight
The density of polypropylene fiber is 0.90-0.92 g/cm3, which is the
lightest among all chemical fibers. It is 20% lighter than nylon,
30% lighter than polyester, and 40% lighter than viscose fiber.
Therefore, it is very suitable for filling winter clothing or
fabrics for ski suits, mountaineering suits, etc.
(2) High strength, good elasticity, wear resistance, and corrosion
resistance
Polypropylene fiber has high strength (same in dry and wet states)
and is an ideal material for making fishing nets and cables; it has
good wear resistance and resilience, and its strength is similar to
that of polyester and nylon. Its rebound rate is comparable to that
of nylon and wool, and is much greater than that of polyester and
viscose fibers; polypropylene fiber has poor dimensional stability,
is easy to pill and deform, is anti-microbial, and is not
moth-eaten; its chemical resistance is better than that of general
fibers.
Application Areas
(1) Industrial use
Polypropylene fiber has the advantages of high strength, good
toughness, good chemical resistance and antimicrobial resistance,
and low price. Therefore, it is widely used in ropes, fishing nets,
safety belts, luggage belts, safety nets, sewing threads, cable
sheaths, geotextiles, filter cloths, papermaking felts, and paper
reinforcement materials.
Polypropylene woven geotextiles made by taking advantage of the
excellent properties of polypropylene fiber such as high strength,
acid resistance, alkali resistance, antimicrobial resistance, and
equal dry and wet strength can play a reinforcing role in civil
engineering projects built on soft soil foundations (such as dams,
reservoirs, highways, railways, etc.), and evenly distribute the
bearing load on the geotextile, so that the roadbed settlement is
uniform and the ground cracking is reduced. When constructing a
slope, the use of woven polypropylene geotextiles can stabilize the
slope, reduce the collapse of the slope, shorten the construction
period, and extend the service life of the slope. When carrying a
large load, a composite geotextile with woven geotextiles and
non-woven fabrics as the matrix can be used. Polypropylene fiber
can be used as a filling material for concrete, plaster, etc. to
improve the impact resistance, waterproofness and heat insulation
of concrete.
(2) Decorative use
Polypropylene fiber has a low density (only 65% of polyester
fiber), is light in weight, has strong covering power, good wear
resistance, is anti-microbial, anti-insect, and easy to clean,
making it particularly suitable for making decorative fabrics.
Carpets, sofa fabrics, wall coverings and other decorative fabrics
and wadding made of polypropylene fiber are not only inexpensive,
but also have the advantages of being resistant to staining,
anti-insect, easy to wash, and having good resilience.
3) Clothing applications
Because polypropylene fiber has a low melting point, is easy to
wrinkle, and is not easy to dye, its application in the clothing
field has been limited. With the advancement of spinning technology
and the development of modified products, its application in the
clothing field is becoming more and more extensive, and clothing
products will be the hope for the development of polypropylene.
Polypropylene fiber can be made into knitwear, such as underwear,
socks, etc.; it can be made into plush products, such as shoe
linings, coat linings, children's coats, etc.; it can be blended
with other fibers to make children's clothing, work clothes,
underwear, pile fabrics and wool yarn, etc. For example, the
development of fine and ultra-fine polypropylene spinning
technology has overcome the characteristics of ordinary
polypropylene fibers such as roughness, waxiness, and poor moisture
absorption. Fine polypropylene fiber is soft, strong and has a
unique wicking effect. It is comfortable to wear, breathable and
has good moisture conduction effects. Wearing it close to the skin
can keep the skin dry, without dampness in summer and dampness in
winter. Clothing made of it is 2/5 lighter than pure cotton
clothing, and its warmth retention is better than wool. It is the
best material for making sportswear, mountaineering clothes,
military cold-proof clothing and underwear. Pure polypropylene
fabrics, cotton-covered polypropylene and silk-covered
polypropylene fabrics made from fine polypropylene fibers have been
launched on the market.
