Question

Compare the physical properties of cotton and rayon.

Hint:

Cotton is known for its strength and moisture absorption, while rayon is preferred for its soft texture and glossy appearance. Consider the intended use of the fabric when choosing between the two.

Answer 1

Step 1: Define Cotton and Rayon.
- Cotton is a natural fibre obtained from the cotton plant, primarily made of cellulose.
- Rayon is a semi-synthetic fibre made from regenerated cellulose, often derived from wood pulp or cotton linters.

Step 2: Compare the physical properties.
1. Strength: Cotton is strong, durable, and able to withstand wear and tear. Rayon, while softer, is weaker and can be damaged more easily, especially when wet. 2. Moisture Absorption: Both fibres absorb moisture well, but cotton absorbs more moisture and dries slower than rayon, which dries faster due to its smoother surface. 3. Texture: Cotton has a natural rough texture, while rayon feels smoother and silkier, often used as a substitute for silk. 4. Appearance: Cotton has a matte appearance, whereas rayon can have a shiny or glossy finish, making it suitable for more formal wear.
Step 3: Summary of comparison.
Cotton is a strong, breathable fibre that is great for everyday wear, whereas rayon offers a softer, shinier appearance suitable for formal clothing, though it is less durable than cotton.