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Small knowledge: interface agent and interface mortar?

For example:(1) porous super absorbent material (aerated concrete, gypsum board, wood, etc.);<br>(2) Smooth and other low-absorbent materials (cast-in-place concrete, etc.);<br>(3) Non-porous non-absorbent materials such as PVC, benzene board and other organic material plates, glazed tiles, etc.), so that the hydraulic cladding material can not be fully hydrated or mechanically embedded in the form of anchoring force, affecting the bonding force and integrity;<br>(4) Because the physical and mechanical properties of the substrate in the subsequent cladding material, such as deformation (shrinkage, expansion) and thermal expansion coefficient, elastic modulus, strength and other differences in internal stress, resulting in bonding failure. All of these situations require the use of interface treatment agents to enhance the bonding force between the two materials (to avoid hollowing, cracking, and shedding). In a physical sense, the interface treatment agent is essentially a two-way affinity building binder.<br>What are the main applications of interface mortar?<br>General buildings and building components are required to make mortar plaster layer, which plays a protective role on buildings and walls to resist the erosion of wind, rain, snow and other natural environments on buildings, and improve the durability of buildings, while achieving dense, smooth and beautiful decorative effects, all of which are based on the effective bonding of the plaster layer and the substrate. The dry powder interface treatment agent for construction is widely used in the plastering of walls, preventing hollowing, the bonding layer of post-pouring belts, and the renovation of old walls. It is particularly worth mentioning that, while ensuring effective bonding, the interface treatment agent often avoids watering the substrate, especially the lightweight block that produces dry shrinkage deformation due to watering, and also plays a role in preventing dry shrinkage cracking and stabilizing the substrate, which is the market with the largest amount of the material. In addition, in many dense materials that are not easy to be bonded by mortar, the interface treatment agent, as an indispensable auxiliary material, also has a certain market.<br>What are the advantages of interface mortar?<br>Interface mortar has the following advantages:(1) it can close the pores of the base material, reduce the absorption of the wall, achieve slow resistance, reduce the moisture in the lightweight masonry suction cladding mortar, and ensure the cladding mortar material to bond and gel under better conditions;(2) consolidation, improve the surface strength of the base material, and ensure the bonding force of the mortar;(3) undertake the bonding bridging effect between masonry and plaster, ensure that the upper wall mortar and masonry surface are more easily combined into a solid whole;(4) It has permanent bonding strength, does not age, does not hydrate and does not form a membrane structure that affects durable bonding;(5) The secondary watering process before plastering is exempted to avoid dry shrinkage of the wall. Interface treatment agent according to the material classification can be divided into organic (water-soluble epoxy resin, acrylic acid, E Ⅴ A emulsion, etc.), inorganic, organic and inorganic composite three categories; according to the finished form can be divided into solid, liquid, solid-liquid double button three. Dry mortar interface treatment agent mostly contains water retention agent, high molecular polymer (produce intermolecular physical binding force), belongs to the powder mixed with water available single group of products.<br>What is the interface agent]<br>Interface agent is a kind of adhesive, generally made of vinyl acetate-ethylene. With super adhesive force, excellent water resistance, aging resistance. Improving the adhesive strength of the plastering mortar to the base layer can effectively avoid the problems such as hollowing, shedding, shrinkage and cracking of the plastering layer. It is used to deal with the surface of concrete, aerated concrete, lime sand brick and fly ash brick, etc., to solve the problem that the interface is not easy to bond due to the strong water absorption or smoothness of these surfaces, resulting in hollow drum, cracking and peeling of the plaster layer. Can greatly enhance the adhesion between the old and new concrete and concrete and plastering mortar. It can replace the traditional chiseling process of concrete surface and improve the plastering process of aerated concrete surface. It is an indispensable supporting material for modern construction and decoration construction. Interface agents are usually used on concrete surfaces because the concrete surface is too smooth. Through the use of this product, can make the grass-roots surface becomes rough, can increase the cement mortar on the grass-roots adhesion, avoid plaster layer hollowing shell, so as to replace the artificial chisel treatment process. It can also be directly brushed with the back of the ground material, depending on the material.</br></br></br></br></br></br></br></br></br>