Using Cellulose in Paints for Enhanced Performance and Sustainability Solutions
Low viscosity hydroxypropyl methyl cellulose (HPMC) has good water solubility, high transparency, good gel performance, strong fluidity and surface activity. It is widely used in medicine and food, petrochemical, construction, textile and electronics industries. The film and other industrial products prepared by cellulose ether have high mechanical strength, flexibility, heat resistance and cold resistance, and have good compatibility with various resins and plasticizers. It is a good coating material.
However, the low viscosity HPMC aqueous solution has a thermal gel behavior, which can be dissolved in cold water. When heated, a gel can be formed and precipitated, and then dissolved again after cooling. This is significantly different from the gel formed by common natural polymer materials (such as starch) under cooling conditions. In the process of thermal gel change, the viscosity of HPMC solution changed greatly.
The viscosity behavior is affected by many factors. The viscosity change of low viscosity hydroxypropyl methyl cellulose was investigated under the conditions of temperature, pH, concentration, tackifier and salinity, in order to provide reference for the use of its viscosity characteristics in the production field.
Because of its decorative and functional properties such as durability, water resistance and ease of cleaning, tiles are widely used: walls, floors, ceilings, fireplaces, murals and swimming pools, and can be used both indoors and out. The traditional method of pasting ceramic tiles is the thick layer construction method, that is, the ordinary mortar is first applied to the back of the tiles, and then the tiles are pressed to the base layer. The thickness of the mortar layer is about 10 to 30 mm. Although this method is very suitable for construction on uneven bases, its disadvantages are low tiling efficiency, high technical proficiency requirements for workers, increased risk of falling off due to poor flexibility of the mortar, and difficulty in checking the quality of the mortar at the construction site. Strict control. This method is only suitable for high water absorption tiles, and the tiles need to be soaked in water before attaching the tiles to achieve sufficient bond strength.
6. Soil Stabilizers.