News

Nowadays, there are more and more hydroxypropyl carboxymethyl cellulose sales markets, and the prices are not balanced. How to easily and quickly determine the quality of hydroxypropyl methyl cellulose has long become a crucial issue! So how to judge the quality of hydroxypropyl methylcellulose?

Although there is only one word difference between putty powder and putty paste, there is also a big difference. Putty powder is a basic leveling material, while putty paste is a wall decoration material. One table and one lining play different roles. Function, the editor will analyze the difference between putty powder and putty paste for you below.

It is added directly during production. This method is the simplest and shortest time-consuming method. The specific steps are:

1. Add a certain amount of boiling water to a stirred container with high shear stress (hydroxyethyl cellulose products are soluble in cold water, so just add cold water);

2. Start the mixing at low speed, and slowly sieve the product into the mixing container;

Physical and chemical properties:
1. The appearance is white or almost white powder
2. Granularity: 100 mesh pass rate ≥ 98% 80 mesh pass rate ≥ 100%
3. Carbonization temperature: 280-300℃
4. Surface tension: 42-56dyn/cm for 2% aqueous solution

The product application range of hydroxypropyl methylcellulose includes: masonry mortar, board joint filler, cement-based plaster, gypsum plaster and plaster products, water-based paint and paint remover, tile adhesive, self-leveling floor Due to the wide range of applications such as materials and formed concrete slabs, whether it is used as a binder, stabilizer, or other aspects, it can only be used after it is dissolved.

Hydroxypropyl methylcellulose is an important raw material for building materials, and it is widely used because of its excellent water retention and thickening properties. An important indicator of hydroxypropyl methyl cellulose is its viscosity.

Hydroxypropyl methylcellulose is a non-ionic cellulose alkyl hydroxyalkyl mixed ether obtained by cellulose alkalization, etherification, neutralization and washing. Hydroxypropyl methylcellulose is a water-soluble non-ionic cellulose ether.

Ordinary concrete is silicate. In the case of air or water vapor, silicate ions will undergo a hydrolysis reaction, and the generated hydroxyl groups and metal ions will combine to form hydroxides with less solubility (alkaline chemical properties).

Enhance the adhesion to the surface of the masonry, and can enhance the water retention, so that the strength of the mortar can be improved. Improve lubricity and plasticity to improve construction performance, easier to apply, save time, and improve cost-effectiveness.