Hydroxypropyl Methyl Cellulose (HPMC) is a non-ionic cellulose ether made by chemically modifying natural cellulose. Due to its excellent thickening, water retention, film-forming, bonding and lubricating properties, it is widely used in many fields of the construction industry.
1. Application of thickeners and binders
HPMC can significantly improve the viscosity and bonding properties of building materials and is often used as a thickener and binder:
Tile adhesive: Adding KimaCell®HPMC to tile adhesive can improve the bonding force, make the tiles less likely to slide during construction, and enhance the wet bonding strength.
Dry-mix mortar: HPMC plays the role of thickening, retaining water and improving working performance in dry-mix mortar, facilitating construction and improving the quality of finished products.
Plastering mortar: It can improve the rheological properties and workability of mortar, making the plastering more uniform and smooth.
2. The role of water retaining agent
HPMC has excellent water retention properties and can significantly improve the water retention rate of cement-based or gypsum-based materials:
Cement-based materials: Adding HPMC to cement mortar can prevent cracks caused by water evaporation and improve the strength and surface quality of the mortar.
Gypsum-based materials: When used in gypsum plaster materials, they can effectively extend the operating time and avoid cracking or powdering caused by rapid water loss.
3. Improve construction performance
HPMC can improve the construction performance in building materials, specifically:
Fluidity adjustment: HPMC can adjust the fluidity of mixed materials, prevent stratification and segregation of the mixture, and make the material more uniform.
Slipperiness: Its lubricating effect can reduce construction resistance and improve the spreadability and operability of materials.
Anti-sagging performance: HPMC can improve the anti-sagging performance of vertical surface construction materials, such as wall coatings and tile adhesives.
4. Film-forming and protective effects
HPMC has excellent film-forming properties and can also play a protective role in the construction field:
Surface protection layer: The film formed by HPMC can effectively protect materials such as paint and putty and prevent cracking and water loss caused by external environment (such as wind and sunlight).
Decorative Materials: It is also widely used in architectural decorative coatings to improve the adhesion and durability of the coating.
5. Applied to thermal insulation and energy-saving materials
HPMC also has important applications in new building energy-saving materials:
External wall insulation mortar: KimaCell®HPMC can improve the bonding force and water retention of insulation mortar, making it have better thermal insulation performance.
Lightweight filling material: HPMC is used as a stabilizer in foaming materials to ensure the structural stability and long-term performance of the material.
6. Application in waterproof materials
HPMC has excellent waterproof properties and can be used in:
Waterproof coating: As an additive for waterproof coating, HPMC can improve the sealing and waterproof properties of the coating.
Grouting materials: HPMC’s water retention properties make grouting construction more efficient while improving anti-seepage performance.
7. Application of gypsum products
In the field of gypsum products, HPMC is also an indispensable additive:
Gypsum putty: Improve the water retention and adhesion of gypsum putty, extend the construction time and improve the surface effect.
Gypsum board: used as adhesive and water retaining agent to improve the strength and toughness of gypsum board.
Hydroxypropyl methylcellulose has been widely used in many fields of the construction industry due to its excellent performance and wide applicability. It not only improves the construction performance of building materials, but also significantly improves the quality and efficiency of construction projects. With the increasing demand for green building materials, KimaCell®HPMC, as an environmentally friendly, efficient and multifunctional additive, will have a broader market prospect.
Post time: Jan-18-2025