Hydroxypropyl methylcellulose is divided into two types: ordinary hot-melt type and cold-water instant type.
Hydroxypropyl methylcellulose uses
1. Gypsum series In gypsum series products, cellulose ethers are mainly used to retain water and increase smoothness. Together they provide some relief. It can solve the doubts of drum cracking and initial strength during construction and prolong working time.
2. In the putty of cement products, cellulose ether mainly plays the role of water retention, adhesion and smoothing, preventing cracks and dehydration caused by excessive water loss, and they together enhance the adhesion of the putty and reduce the occurrence of the construction process. sagging phenomenon, and make the construction more smoothly.
3. Latex paint In the coating industry, cellulose ethers can be used as film-forming agents, thickeners, emulsifiers and stabilizers, making them have good abrasion resistance, uniform coating performance, adhesion and PH value, and have Improved surface tension. It also works well in combination with organic solvents, and its high water retention makes it excellent for brushing and leveling.
4. Interface agent Mainly used as a thickener, it can increase tensile strength and shear strength, improve surface coating, and enhance adhesion and bonding strength.
5. Exterior wall insulation mortar The cellulose ether in this article focuses on bonding and increasing strength, making the mortar easier to apply and improving work efficiency. Anti-sag effect, higher water retention function can prolong the service time of the mortar, improve the resistance to shortening and cracking, improve the surface quality and increase the bond strength.
6. Honeycomb ceramics In the new honeycomb ceramics, the products have smoothness, water retention and strength.
7. Sealant, suture The addition of cellulose ether makes it have excellent edge adhesion, low reduction rate and high wear resistance, and protect the underlying data from mechanical damage, preventing the impact of soaking on all construction.
8. Self-leveling The stable adhesion of cellulose ether ensures excellent fluidity and self-leveling ability, and the operating water retention rate enables it to set quickly, reducing cracking and shortening.
9. Building mortar plastering mortar High water retention makes the cement fully hydrated, significantly increases the bond strength, and at the same time appropriately increases the tensile and shear strength, which greatly improves the construction effect and work efficiency.
10. Tile adhesive High water retention does not require pre-impregnation or wetting of tiles and base layers, which significantly improves the bond strength, long construction period of the slurry, fine and uniform construction, convenient construction, and excellent anti-migration.
Dissolution method
1. Take the required amount of hot water, put it into a container and heat it to above 85°C, and gradually add this product under slow stirring. The cellulose floats on the water at first, but is gradually dispersed to form a uniform slurry. Cool the solution with stirring.
2. Or heat 1/3 or 2/3 of the hot water to 85— or more, add cellulose to obtain a hot water slurry, then add the remaining amount of cold water, keep stirring, and cool the resulting mixture.
Precautions
Various viscosities (60,000, 75,000, 80,000, 100,000), packed in cardboard drums lined with polyethylene film, net weight per drum: 25kg. Prevent sun, rain and moisture during storage and transportation.
Post time: Oct-20-2022