As a functional decorative material, ceramic tiles have been widely used all over the world, and
How to paste this durable material well to make it safe and durable has always been a concern of people.
The emergence of tile adhesives, to a certain extent, ensures the reliability of tile paste.
Different construction habits and construction methods have different construction performance requirements for tile adhesives. In the current domestic tile paste construction, the thick paste method (traditional adhesive paste) is still the mainstream construction method. When this method is used, the requirements for the tile adhesive: easy to stir; easy to apply glue and not stick to the knife ; Better viscosity; better anti-slip.
With the development of tile adhesive technology and the improvement of construction technology, the trowel method (thin paste method) has also been gradually adopted. Using this construction method, the requirements for tile adhesives; easy to stir; Sticky knife; better anti-slip performance; better wettability to tiles, longer open time.
Under normal circumstances, choosing different types of cellulose ether can make the tile adhesive achieve the corresponding workability and workability.
In the aesthetic point of view of the Orientals, the smooth and flat surface of the building is usually regarded as the most beautiful. The application of putty thus came into being. Putty is a thin-layer plastering material that plays an important role in the decoration and functionality of buildings.
The three layers of decorative coating: base wall, putty leveling layer, and finishing layer have different main functions, and their elastic modulus and deformation coefficient are also different. When the ambient temperature, humidity, etc. change, the deformation of the three layers of materials The quantity is also different, which requires the putty and finishing layer materials to have a suitable modulus of elasticity, relying on their own elasticity and flexibility to eliminate concentrated stress, so as to resist cracking of the base layer and prevent peeling and peeling of the finishing layer.
A putty with good performance should have good substrate wetting performance, recoatability, smooth scraping performance, sufficient operating time and other construction performances, and should also have excellent bonding performance, flexibility, and durability. Grindability and durability etc.
As the most important part of the commercialization of China's building materials, China's ready-mixed mortar industry has gradually transitioned from the market introduction period to the rapid growth period under the dual effects of market promotion and policy intervention.
The use of ready-mixed mortar is an effective means to improve project quality and civilized construction level; the promotion and application of ready-mixed mortar is conducive to the comprehensive utilization of resources and is an important measure for sustainable development and the development of circular economy; the use of ready-mixed mortar can greatly Significantly reduce the secondary rework rate of building construction, improve the degree of construction mechanization, improve construction efficiency, reduce labor intensity, and reduce the total energy consumption of buildings while continuously improving the comfort of the living environment.
In the process of commercialization of ready-mixed mortar, cellulose ether plays a milestone role.
The reasonable application of cellulose ether makes it possible to mechanize the construction of ready-mixed mortar; cellulose ether with good performance can significantly improve the construction performance, pumping and spraying performance of mortar; its thickening ability can improve the effect of wet mortar on the base wall The wetting ability of the mortar improves the bonding strength of the mortar; the opening time of the mortar can be adjusted; the unparalleled water retention capacity can greatly reduce the probability of plastic cracking of the mortar; the hydration of the cement is more complete, thereby improving the overall structural strength.
Taking ordinary plastering mortar as an example, as a good mortar, the mortar mixture should have good construction performance: easy to stir, good wettability to the base wall, smooth and non-stick to the knife, and sufficient operating time (Little loss of consistency), easy to level; the hardened mortar should have excellent strength properties and surface appearance: suitable compressive strength, bonding strength with the base wall, good durability, smooth surface, no hollowing, no cracking , Do not drop powder.
As an important part of the tile laying project, the caulking agent not only improves the overall effect and contrast effect of the tile facing project, but also plays an important role in improving the waterproof and impermeability of the wall.
A good tile adhesive product, in addition to rich colors, uniform and no color difference, should also have the functions of easy operation, fast strength, low shrinkage, low porosity, waterproof and impervious. Cellulose ether can reduce the wet shrinkage rate while providing excellent operating performance for the joint filler product, and the air-entraining amount is small, and the effect on cement hydration is small.
Decorative mortar is a new type of wall finishing material that integrates decoration and protection. Compared with traditional wall decoration materials such as natural stone, ceramic tile, paint and glass curtain wall, it has unique advantages.
Compared with paint: high grade; long life, the service life of decorative mortar is several times or even dozens of times that of paint, and it has the same life span as buildings.
Compared with ceramic tiles and natural stone: similar decorative effect; lighter construction load; safer.
Compared with glass curtain wall: no reflection; safer.
A decorative mortar product with excellent performance should have: excellent operating performance; safe and reliable bonding; good cohesion.
The role that cellulose ether should achieve for self-leveling mortar:
Ensure the fluidity of self-leveling mortar
Improve the self-healing ability of self-leveling mortar
Helps create a glossy finish
Reduce shrinkage and increase bearing capacity
Improve the adhesion and cohesion of self-leveling mortar to the base surface
In gypsum-based products, whether it is plaster, caulk, putty, or gypsum-based self-leveling, gypsum-based thermal insulation mortar, cellulose ether plays an important role in it.
Appropriate cellulose ether varieties are not sensitive to the alkalinity of gypsum; they can quickly infiltrate in gypsum products without agglomeration; they have no negative impact on the porosity of cured gypsum products, thereby ensuring the respiratory function of gypsum products; Retarding effect but does not affect the formation of gypsum crystals; provide suitable wet adhesion for the mixture to ensure the bonding ability of the material to the base surface; greatly improve the gypsum performance of gypsum products, making it easy to spread and not stick to tools.