Hydroxypropyl methylcellulose is a common raw material in the building materials chemical industry. In daily production, we can often hear its name. But many people don’t know its use. Today, I will explain the use of hydroxypropyl methylcellulose in different environments.
1. Construction mortar, plastering mortar
As a water-retaining agent and retarder for cement mortar, it can improve the pumpability of the mortar, improve the spreadability and prolong the operation time. The water retention of HPMC can prevent the slurry from cracking due to drying too fast after application, and enhance the strength after hardening.
2. Water-resistant putty
In the putty, cellulose ether mainly plays the role of water retention, bonding and lubrication, avoiding cracks and dehydration caused by excessive water loss, and at the same time enhancing the adhesion of the putty, reducing the phenomenon of sagging during construction, and making the construction process smoother.
3. Plaster plaster
In gypsum series products, cellulose ether mainly plays the role of water retention, thickening and lubrication, and has a certain retarding effect at the same time, which solves the problem of unreachable initial strength during the construction process, and can prolong the working time.
4. Interface agent
Mainly used as a thickener, it can improve tensile strength and shear strength, improve surface coating, enhance adhesion and bond strength.
5. External insulation mortar for external walls
Cellulose ether mainly plays the role of bonding and increasing strength in this material. It is easier to coat the sand, improve the work efficiency, and has the effect of anti-sag flow. The higher water retention performance can prolong the working time of the mortar and improve the resistance Shrinkage and crack resistance, improved surface quality, increased bond strength.
6, caulking agent, ditch joint agent
The addition of cellulose ether gives it good edge adhesion, low shrinkage and high abrasion resistance, which protects the base material from mechanical damage and avoids the impact of penetration on the entire building.
7. DC flat material
The stable cohesiveness of cellulose ether ensures good fluidity and self-leveling ability, and controls the water retention rate to enable rapid solidification and reduce cracking and shrinkage.
8. Latex paint
In the coating industry, cellulose ethers can be used as film formers, thickeners, emulsifiers and stabilizers, so that the film has good abrasion resistance, leveling, adhesion, and PH that improves surface tension is qualitative , The miscibility with organic solvents is also good, and the high water retention performance makes it have good brushability and river leveling.
I believe that everyone has a certain understanding of hydroxypropyl methylcellulose. As an important raw material in the building materials chemical industry, hydroxypropyl methylcellulose affects the quality of downstream products. Therefore, when choosing hydroxypropyl methylcellulose, be sure to keep your eyes open. Only high-quality raw materials can produce high-quality products.
Post time: Oct-11-2022