Question 07 (Textile Engineering & Fibre Science)
Acrylic fibre has high glass transition temperature ( Tg ≈ 100o C) primarily due to
| (A) | Presence of polar side groups |
| (B) | Presence of bulky side groups |
| (C) | High crystallinity |
| (D) | Main chain stiffness |
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Frequently Asked Questions | FAQs
What are the thermal properties of acrylic fiber?
Acrylic fiber is a synthetic fiber that is known for its softness, warmth, and light weight. The thermal properties of acrylic fiber are as follows:
Heat resistance: Acrylic fibers have a high resistance to heat and can withstand temperatures up to 150°C without melting or degrading.
Low thermal conductivity: Acrylic fibers have a low thermal conductivity, which means they do not conduct heat well. This property helps to keep the wearer warm by trapping air between the fibers and reducing heat loss.
Quick drying: Acrylic fibers have excellent moisture-wicking properties, which means they can quickly absorb moisture and evaporate it to the surrounding air. This property makes acrylic fibers ideal for use in sportswear and outdoor clothing, where moisture management is important.
Low flammability: Acrylic fibers have a low flammability, which means they are less likely to catch fire or spread flames. This property makes acrylic fibers a popular choice for home furnishings, such as carpets and upholstery, where fire safety is a concern.
Overall, acrylic fibers are known for their good thermal insulation properties, which makes them a popular choice for winter clothing, blankets, and other cold-weather textiles.