What are the benefits of refined cotton for HPMC?

Hydroxypropyl methyl cellulose is a non-ionic polymer compound with good water retention properties, which is widely used in textiles, food, cosmetics and other fields. Refined cotton, on the other hand, has become an important raw material for many textiles because of its consistent length, moderate fineness, softness and breathability. Since hydroxypropyl methyl cellulose and refined cotton are often mixed in the textile production process, what are the benefits of refined cotton.

Hydroxypropyl methyl cellulose (HPMC) raw material is refined cotton benefits mainly include the following aspects:

Improve water retention performance

Refined cotton can improve the water retention rate of hydroxypropyl methylcellulose mixture. The experimental results showed that when the content of refined cotton was 20%, the mixture had the highest water retention rate of 73.2%. As the content of refined cotton increased, the water retention rate gradually decreased, but still remained at a high level.

Improvement of viscosity properties

At low contents, refined cotton is able to increase the molecular weight of the blends, thus improving their viscosity. However, when the refined cotton content exceeds 30%, the viscosity of the mixture decreases, as the high content of refined cotton may affect the intermolecular forces of the mixture, leading to its loose structure.

Improved thermal stability

The addition of refined cotton also improves the thermal stability of hydroxypropylmethylcellulose. Experiments have shown that the mixture shows better thermal stability with less weight loss after being heated to 240°C and maintained for 10 minutes.

Enhance product quality

The quality of refined cotton directly affects the quality of hydroxypropylmethylcellulose. High-quality refined cotton produces cellulose with a whiter colour, less ash and better water retention. In addition, the number of washes and the addition of medium and small materials to the finished product also affect the quality of the final product.

In summary, the use of refined cotton as a raw material for hydroxypropylmethylcellulose can significantly improve the water retention, viscosity properties and thermal stability of the product, as well as the quality of the final product.