Application of hydroxyethylmethylcellulose(HEC)


Hydroxyethyl methylcellulose can be used as hydroidal protective agent, emulsifying agent and dispersing agent due to the surface active function of aqueous solution.Examples of its application are as follows:(HEC)

1. Effect of hydroxyethylmethyl cellulose on cement properties.(HEC)

Hydroxyethylmethyl cellulose is a nonodorless, odorless, non-toxic white powder that dissolves in cold water to form a transparent, viscous solution.

It has the characteristics of thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, cemelling, surface activity, maintaining water, and protecting colloids.(HEC)

Because the aqueous solution has a surfactant function, it can act as a colloidal protective agent, emulsifier and dispersant.Hydroxyethylmethyl cellulose solution is a high efficiency water retaining agent.

2. Prepare a relief paint with high flexibility, Made from the following weight parts of raw materials: (HEC)

deionized water 150-200g; Pure C emulsion 60-70g; Heavy calcium: 550-650g; Talc powder 70-90g; Hydroxyethyl methyl cellulose aqueous solution 30-40g; Lnocellulosic aqueous solution 10-20g; Membrane-forming additives: 4-6g; Antiseptic and fungicide 1.5-2.5g; Dispersant 1.8-2.2g; Moisture agent 1.8-2.2g; Thickener, 3.5-4.5g; Ethylene glycol 9-11g; The hydroxyethylmethylcellulose solution is made of 2-4% hydroxyethylmethyl cellulose dissolved in water; The aqueous lignocellulose solution is made of 1 – 3% lignocellulose dissolved in water.


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