HPMC manufacturer-Application of Redispersible Latex in Typical Special Dry Mortar Products
Modification of cement mortars by polymers has a complementary effect on the two, allowing polymer-modified mortars to be used in many special applications. In addition, due to the advantages of dry mortar in quality control, construction operations, storage and environmental protection, dispersible polymer powder provides an effective technical means for the production of special dry mortar products. As mentioned above, the three major varieties of specialty dry mortar products are tiles, adhesives and mortars in exterior wall insulation systems and self-leveling mortars. Combined with the above mechanism analysis of redispersible latex powders, we discuss its use in these three Typical special dry mortar product.
Tile is very common because of its good decorative and functional properties, such as durability, water resistance and ease of cleaning: including walls, floors, ceilings, fireplaces, murals and swimming pools, it can be used both internally and externally. The traditional method of pasting tiles is a thicker layer, that is, the first ordinary mortar is applied to the back of the tiles, and then the bricks are pressed into the base layer, and the thickness of the mortar layer is about 10-30mm. Although this method is very suitable for construction in unequal grass roots, the disadvantage is that the tiling efficiency is low, the workers with high technical requirements, and it is difficult to strictly control the quality of the mortar on the construction site because the flexibility of the mortar increases the risk of falling off. This method is only suitable for highly absorbent tiles, where the tiles need to be immersed in water to obtain sufficient bond strength.
A large number of tiles currently used in Europe are the so-called thin-layer sticking method, that is, batches of polymer-modified tiles are scraped on the surface of the substrate with a scraper to form raised stripes and the thickness of the mortar layer, and then the tile is pushed Slice and slightly invert the mortar layer to a thickness of about 2 to 4mm. Due to the modification of cellulose ether and redispersible latex powder, the use of this ceramic tile has good adhesion properties to different types of substrates and includes glass tiles, such as very low water absorption, good softness to absorb due to Stress caused by temperature and other factors, as well as excellent resistance to vertical flow, long enough open time for thin construction can greatly speed up construction, easy operation, and no need to wet the tile in water. This construction method is easy to operate, and it is also easy to carry out on-site construction quality control.