The influence of polyethylene glycol hydroxyl value on textile auxiliaries

The hydroxyl value of polyethylene glycol is used to indicate the number of hydroxyl groups on the PEG molecular chain. The hydroxyl value is related to the molecular weight and polymerization degree of PEG. Usually calculated by dividing the average molecular weight of PEG by the number of hydroxyl groups in PEG.

In textile pulp, the hydroxyl value of PEG6000 can have a certain impact on the properties of the pulp, especially in coatings, printing and dyeing processes. The following are some factors that the hydroxyl value may affect

1. Dispersion performance: PEGs with higher hydroxyl values usually have more hydroxyl values, which makes them have better dispersion performance in textile pulp. This means that PEG6000 has higher hydroxyl values, more effective dispersion of pigments and additives, and ensures their uniform distribution in textile pulp.

2. Wettability: PEG with higher hydroxyl values has better wetting properties and can improve the wettability of fibers, which is also very important for textile technology and dyeing processes. Because it can help ensure that fuel or ink evenly covers the fiber surface.

3. Viscosity and flowability. The hydroxyl value of PEG affects the viscosity and flowability of textile pulp, and PEG with higher hydroxyl values usually increases the viscosity of the pulp, which is very beneficial for certain process steps. But appropriate control is also needed to avoid unnecessary slurry being too viscous. In summary, the hydroxyl value of PEG6000 can affect the dispersibility, wettability, viscosity, and flowability of textile pulp. In practical applications, the specific selection of PEG should be evaluated based on the required textile process and materials used to ensure that the other components of its formula are coordinated with each other to achieve the desired performance.