Aramid Fiber Textile Fiber Textile Engineering This slide is about Aramid Fiber

1. To my
presentation
Md Faisal Ahmed Biplob
ID:191003045

2. Presentation Topic
Aramid Fiber

3. Introduction
• Aramid are heat-resistant and strong
synthetic fibers.
• They are used in aerospace and
military applications, for ballistic rated
body armor,
bicycle tires, and an asbestos
substitute.
• The following characteristic distinguish
them from other polymers:
• High strength
• Good resistance to abrasion
• Good resistance to organic solvents
• Non-conductive
• No melting point
• Low flammability

4. History
• Meta aramid was first produced by
DuPont in 1961 under the trade name
of Nomex. This has similarity with
textile fiber having excellent heat
resistance.
• It was used extensively in the
production of protecting clothes , air
filtration ,insulation ,substitute as
asbestos.
• Meta aramid was also produced in
Netherland, Japan,Korea, China and
France.
• Stephene Kwolek working at DuPont
introduced first para-aramid called
Kevlar in 1973.

5. Types of Aramid
polymer:

6. Structure
Fig-1. Aramid fiber

7. General
features of
Kevlar:
• High Tensile Strength at Low Weight.
• Low Elongation to Break.
• High Modulus (Structural Rigidity).
• Low Electrical Conductivity.
• High Chemical Resistance.
• Low Thermal Shrinkage.
• High Toughness (Work-To-Break).
• Excellent Dimensional Stability.
• High Cut Resistance.
• Flame Resistant, Self-Extinguishing.

8. Characteristics
& Properties
• It has remarkable strength.
• It is stronger than fiber glass and
five times stronger than steel.
• All the Kevlar fibers show high
tensile strength and modulus.
• Kevlar 49 and Kevlar 149 even
much higher modulus.
• Benzene aromatic ring is the key
structure of Kevlar’s.

9. Different
Applications
• Aramid fiber uses in:-
a)Geotextile:-Reinforced
thermoplastic pipes.
b) Automobile Industries:-set belt,
helmets,Tire cord.
c) Defense fields:-bullet-proof
jacket, Military cloth.
d) Protective Textile-Body armor,
safety
boot.