Hydroxypropyl methylcellulose (industrial grade)
Essential information
Chinese Name: hydroxypropylmethylcellulose
Chinese alias: HPMC; HPMC
English Name: hydroxy proxy methyl cell
English alias: HPMC
Hydroxypropyl methylcellulose (HPMC) is a kind of non-ionic cellulose ether, which is made from natural high molecular material (cotton) cellulose through a series of chemical processes. It is a kind of odorless, tasteless and nontoxic white powder, which swells into a clear or slightly turbid colloidal solution in cold water. It has the characteristics of thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gel, surface activity, water retention and protective colloid.
Hydroxypropyl methylcellulose is mainly used in building materials, coating industry, synthetic resin, ceramic industry, medicine, food, textile, agriculture, daily chemical industry, etc. Our company produces "chuangyao" brand hydroxypropylmethylcellulose (building materials grade), which is mainly used in building materials industry, coating industry, ceramic industry, chemical industry and other industries.
Physical and chemical indicators:
Project specification appearance white powder solid hydroxypropyl (%) 7.0-12.0 methoxy (%) 26.0-32.0 loss on drying (%) ≤ 3.0 ash (%) ≤ 2.0 transmittance (%) ≥ 90.0 bulk density (g / L) 400-450ph5.0-8.0 mesh number 100 mesh passing rate: 98% viscosity 60000cps-200000cps, 2%
Viscosity table of HPMC:
Brand viscosity (2% NDJ-1) viscosity (2% Brookfield) cy-50000 (s) 50000270000cy-100000 (s) 900004500cy-150000 (s) 138005500cy-200000 (s) 18000065000
Note: S - > surface treatment
Application guide for building materials industry:
Exterior wall insulation system (EIFS)
● bond strength: choose to add appropriate amount of "chuangyao" brand hydroxypropylmethylcellulose to maximize the bond strength of the bond mortar.
● working performance: the mortar added with "chuangyao" brand hydroxypropylmethylcellulose has proper consistency and does not flow. When used, the mortar is easy to comb and continuous.
● water retention: the addition of "chuangyao" brand hydroxypropylmethylcellulose can easily wet the wall insulation materials, facilitate the pasting, and achieve the best effect of other additional materials.
● water absorption: choose to add appropriate "chuangyao" brand hydroxypropylmethylcellulose to reduce the air entrainment as much as possible and reduce the water absorption of mortar.
Recommended brand: cy-150000; cy-200000
Internal and external wall interface agent jointing agent
● easy to mix, no caking: in the process of mixing with water, "chuangyao" brand hydroxypropylmethylcellulose can significantly reduce the friction in the dry powder, make the mixing easier and save the mixing time.
Excellent water retention: "chuangyao" brand hydroxypropylmethylcellulose can significantly reduce the water absorbed by the wall. Good water retention, on the one hand, can ensure that the cement has a longer mixing time, on the other hand, can ensure that the workers can carry out multiple batches of putty on the wall.
● good construction performance stability: under high temperature environment, "chuangyao" brand hydroxypropylmethylcellulose can still maintain good water retention, so it is suitable for construction in summer or hot areas.
● increase water demand: "chuangyao" brand hydroxypropylmethylcellulose significantly improves the water demand of putty materials. On the one hand, it improves the operation time of putty on the wall, on the other hand, it can increase the coating area of putty, making the formula more economic.
Recommended brand: cy-100000; cy-150000
Tile binder
● water retention: "chuangyao" brand hydroxypropylmethylcellulose can reduce the water absorbed by the base material and ceramic tile in the mortar, and retain the water in the binder as much as possible, so that the mortar will remain adhesive after coating for a long time. The significantly extended opening time can make the area of each coating larger and improve the construction efficiency.
● improve the bond strength and slip resistance: chuangyao brand hydroxypropylmethylcellulose can ensure that the tiles will not slide down during construction, especially for heavy tiles, marble and other stones.
● improvement of working performance: the lubricating performance of chuangyao brand hydroxypropylmethylcellulose significantly improves the working performance of the mortar, making the mortar easy to be combed and coated, and improving the working efficiency.
● improve the wettability of mortar: "chuangyao" brand hydroxypropylmethylcellulose gives the mortar consistency, improves the wettability of mortar, ceramic tile and base material, and improves the adhesive force of wet mortar, especially the formula with high water cement ratio.
Recommended brand: cy-150000; cy-200000
mortar
● workability: "chuangyao" brand hydroxypropylmethylcellulose provides proper viscosity, good plasticity and easy construction.
● water retention: "chuangyao" brand hydroxypropylmethylcellulose can make the slurry fully hydrated, extend the construction time, and avoid cracking.
● hang resistance: "chuangyao" brand hydroxypropylmethylcellulose can make the slurry firmly adhere to the surface without sagging.
Recommended brand: cy-100000; cy-150000
Self leveling mortar
● prevent bleeding: "chuangyao" brand hydroxypropylmethylcellulose can play a very good role in suspension, prevent slurry from settling and bleeding.
● maintain the fluidity and improve the water retention: the low viscosity "chuangyao" brand hydroxypropylmethylcellulose will not affect the flow effect of the slurry, which is convenient for construction. At the same time, it has certain water retention property, which makes the surface effect of self leveling good and avoids cracks.
Recommended brand: cy-50000
Gypsum based plastering
● water retention: "chuangyao" brand hydroxypropylmethylcellulose can retain the water in the mortar, and make the gypsum completely solidified. The higher the viscosity of the solution, the stronger the water holding capacity. On the contrary, the lower the water holding capacity.
Anti sagging: "chuangyao" brand hydroxypropyl
