Question 32 (Textile Engineering & Fibre Science)
Consider the following assertion [a] and reason [r] and choose the correct alternative from amongst A, B, C and D.
[a] Both polyester and nylon filaments can be drawn at room temperature to achieve higher strength, modulus and dimensional stability.
[r] Tg of both polyester and nylon can be lowered to room temperature on absorption of atmospheric moisture.
| (A) | [a] is right and [r] is wrong |
| (B) | [a] is right and [r] is right |
| (C) | [a] is wrong and [r] is wrong |
| (D) | [a] is wrong and [r] is right |
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Frequently Asked Questions | FAQs
What is polyester and nylon melting point?
Polyester and nylon are both synthetic polymers with different melting points. The melting point of polyester can vary depending on its specific type, but it typically ranges from 250°C to 300°C (482°F to 572°F). On the other hand, the melting point of nylon also varies depending on its specific type, but it typically ranges from 215°C to 265°C (419°F to 509°F).
It’s important to note that these are general ranges and the melting point of a specific type of polyester or nylon can vary depending on its molecular structure and other factors. Additionally, the melting point is the temperature at which the material transforms from a solid to a liquid, and can be affected by factors such as pressure and the rate of heating.