Question 28 (Textile Technology & Fibre Science)
Group I gives a list of fibres and Group II contains their applications. Match the fibre with its
application.
| Group I | Group II |
| P. Polypropylene | 1. Fire proof jacket |
| Q. Carbon | 2. Bullet proof jacket |
| R. Ultra-high molecular weight polyethylene | 3. Carpet |
| S. Meta-aramid | 4. Windmill blade |
| (A) | P-4, Q-2, R-3, S-1 |
| (B) | P-3, Q-4, R-2, S-1 |
| (C) | P-3, Q-4, R-1, S-2 |
| (D) | P-4, Q-1, R-2, S-3 |
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Frequently Asked Questions | FAQs
Where is polypropylene most commonly used for?
Polypropylene is a versatile thermoplastic polymer that is used in a wide range of applications due to its excellent chemical and mechanical properties. Some of the most common uses of polypropylene include:
Packaging: Polypropylene is commonly used for packaging applications such as bottles, caps, and containers. It is also used for flexible packaging such as bags, films, and wrappers.
Automotive industry: Polypropylene is used in the automotive industry for the production of car parts such as battery cases, bumpers, dashboards, and interior trims.
Textiles: Polypropylene fibers are used in the production of a wide range of textiles, including carpets, upholstery fabrics, and geotextiles.
Medical industry: Polypropylene is used in the medical industry for the production of medical devices such as syringes, test tubes, and surgical instruments.
Electrical industry: Polypropylene is used in the electrical industry for the production of insulation materials and cable jackets.
Stationery: Polypropylene is used for the production of stationery items such as folders, notebooks, and packaging materials.
Household items: Polypropylene is used for the production of a wide range of household items such as storage containers, kitchenware, and toys.
Overall, the versatile properties of polypropylene make it suitable for a wide range of applications in various industries.
Where is carbon fibre mostly used?
Carbon fiber is a high-strength and lightweight composite material that is used in a wide range of applications due to its excellent mechanical properties. Carbon fiber composites are typically made by combining carbon fibers with a resin matrix, which can be cured to create a strong and rigid material.
Carbon fiber is commonly used in the following applications:
Aerospace: Carbon fiber is widely used in the aerospace industry for the production of aircraft and spacecraft parts such as wings, fuselage sections, and structural components.
Automotive industry: Carbon fiber is used in the automotive industry for the production of high-performance vehicles and parts such as body panels, chassis components, and wheels.
Sports equipment: Carbon fiber is used in the production of high-performance sports equipment such as bicycles, tennis rackets, golf clubs, and ski poles.
Construction: Carbon fiber is used in the construction industry for the reinforcement of concrete structures such as bridges, buildings, and tunnels.
Wind energy: Carbon fiber is used in the wind energy industry for the production of wind turbine blades.
Medical devices: Carbon fiber is used in the production of medical devices such as prosthetic limbs, orthopedic implants, and surgical instruments.
Overall, the high strength-to-weight ratio and stiffness of carbon fiber make it a suitable material for applications that require high strength, lightweight, and durability.
What is ultra high molecular weight polyethylene used for?
Ultra-high molecular weight polyethylene (UHMWPE) is a type of plastic with a very high molecular weight, which gives it exceptional strength and durability. It is commonly used in various applications, including:
Medical implants: UHMWPE is a popular material for joint replacements, such as hips and knees, due to its biocompatibility, wear resistance, and ability to withstand heavy loads.
Industrial components: UHMWPE is used in the manufacture of gears, bearings, and other components that require high strength, low friction, and resistance to wear and impact.
Armor: UHMWPE is used in the production of body armor, helmets, and vehicle armor due to its high strength and ability to absorb impact.
Sports equipment: UHMWPE is used in the production of skis, snowboards, and other sports equipment due to its low friction and durability.
Conveyor systems: UHMWPE is used in conveyor systems due to its low coefficient of friction and ability to withstand heavy loads.
Food processing: UHMWPE is used in the manufacture of food processing equipment due to its non-toxicity, high abrasion resistance, and low friction.
What are meta-aramids used for?
Meta-aramids are a type of synthetic fiber that is known for its exceptional heat resistance and flame-retardant properties. As a result, meta-aramids are commonly used in a variety of industrial and safety applications where heat and fire protection are critical. Here are some common uses of meta-aramids:
Protective clothing: Meta-aramids are commonly used in the manufacture of protective clothing for firefighters, industrial workers, and military personnel. These materials provide excellent protection against flames, heat, and chemicals.
Automotive industry: Meta-aramids are used in the production of heat shields, gaskets, and other components that require high-temperature resistance in automobiles and other vehicles.
Aerospace industry: Meta-aramids are used in the manufacture of aircraft insulation, protective clothing, and other components that require high-temperature resistance in the aerospace industry.
Electrical industry: Meta-aramids are used in the production of insulating materials for electrical wiring and cables, as well as protective clothing for electrical workers.
Filtration: Meta-aramids are used in the production of high-temperature filters for industrial and automotive applications.
Overall, the excellent heat resistance and flame-retardant properties of meta-aramids make them an essential material in a wide range of industrial, safety, and high-performance applications.