What’s the characteristics and dissolution method of hydroxypropyl methyl cellulose?

Hydroxypropyl methyl cellulose is a non-ionic cellulose ether polymer. According to the degree of substitution and modification of substituent groups, it has different solubility, surface activity, thermal gelation and compatibility with other substa...

What’s the polycarboxylate water reducing agent?

Polycarboxylate superplasticizer can significantly reduce the water consumption of concrete and increase the fluidity of concrete through adsorption, dispersion and fluidization. It can also form a uniform film in the concrete, inhibit water evapora...

What are the dissolution methods of hydroxypropyl methylcellulose HPMC?

A: Hot water dissolution method: Since HPMC does not dissolve in hot water, HPMC can be evenly dispersed in hot water at the initial stage, and then quickly dissolved when cooled. Two typical methods are described as follows： 1），Add 1/3 or 2/3 of the...

What is the difference between Hydroxypropyl methyl Cellulose and Hydroxyethyl Cellulose?

1. Different Characteristics: Hydroxypropyl methylcellulose: (HPMC) is white or off- white powder, which belongs to various non-ionic cellulose mixed ethers. It is a semi-synthetic, inactive viscoelastic polymer. Hydroxyethyl cellulose: (HEC) is a wh...