There are many types of mesh cloths, and alkali-resistant fiberglass mesh cloth is only one of them, but it is still a very important mesh cloth. The following is a detailed introduction to alkali-resistant mesh cloth. I hope it can help everyone learn more about alkali-resistant glass fiber mesh cloth.
Alkali-resistant glass fiber mesh is based on medium-alkali or alkali-free glass fiber woven fabric and treated with alkali-resistant coating. This product has high strength, good adhesion, excellent conformability and positioning, and is widely used. Used in wall reinforcement, exterior wall insulation, roof waterproofing, etc.
Alkali-resistant mesh cloth
Glass fiber alkali-resistant mesh cloth is based on medium-alkali or alkali-free glass fiber woven fabric and treated with alkali-resistant coating. This product has high strength, good adhesion, excellent conformability and positioning, and is widely used. It is used for wall reinforcement, exterior wall insulation, roof waterproofing, etc. It can also be used to reinforce wall materials such as cement, plastic, asphalt, marble, mosaic, etc. It is an ideal engineering material in the construction industry.
Advantages of alkali-resistant fiberglass mesh
Compared with ordinary alkali-free and medium-alkali glass fibers, alkali-resistant glass fiber has its own obvious characteristics: good alkali resistance, high tensile strength, and extremely strong corrosion resistance in cement and other strong alkali media. It is a glass fiber Fiber reinforced cement product (GRC) are irreplaceable reinforcing material.
Alkali-resistant glass fiber is the base material of glass fiber-reinforced cement (GRC). With the deepening of wall reform and economic development, GRC has been widely used in building interior and exterior wall panels, insulation boards, air duct boards, garden sketches and art sculptures, civil engineering Engineering, and other uses. It can produce some products and components that are difficult or incomparable with reinforced concrete. It can be used in non-load-bearing, non-essential load-bearing, semi-load-bearing construction components, decoration parts, agricultural and animal husbandry equipment, etc.
Alkali-resistant glass fiber mesh is made of medium-alkali and alkali-free glass fiber mesh as the base material and is processed with acrylic copolymer glue. The mesh has high strength, excellent alkali resistance, acid resistance, and good adhesion to resin. Strong, easily soluble in styrene, with excellent stiffness and positioning properties. It is mainly used as reinforcing materials for cement, plastics, asphalt, roofs, and walls. It is mainly used for GRC pre-paving, modification, or mechanized forming, and is especially suitable for on-site construction of exterior wall insulation projects.
Specification for alkali-resistant mesh cloth
1. 14.5% to 16.7% zirconium dioxide and 6% titanium dioxide are introduced into the glass composition. After melting at a high temperature of 1600°C, the platinum is leak-drawn into continuous filaments, spliced and twisted into textile glass fibers, and then drawn. During the process, the monofilament is coated with polymer water-soluble epoxy resin and coupling agent to ensure the affinity of the glass fiber mesh with the alkali-resistant polymer during post-processing.
2. In order to further improve the safe, stable, and durable performance of the alkali-resistant glass fiber mesh, after the warp knitting is processed into a leno shape, it is coated with styrene-butadiene rubber and pure acrylic emulsion and is glued using constant temperature, constant speed, and constant tension control technology. Adequate (this technology is an alkali-resistant coating technology developed by BASF in Europe for alkali-free glass fiber mesh) in the early stage, it can effectively resist the corrosion of the glass fiber mesh during the hydration period of polymer mortar Ca(OH)2. After coating, the anti-slip strength of the mesh intersection point is 3.5~4.5N.
3. In addition to the alkali-resistant coating, the alkali-resistant function of alkali-resistant glass fiber mesh cloth is to form a mixed film of zirconium and titanium ions on the surface of the fiber itself to prevent corrosion by alkaline substances. As time goes by, the chemical state of zirconium gradually becomes stable. As shown in Table III, the alkali resistance retention rate of alkali-resistant glass fiber mesh is greater than 85%, which is much higher than other glass fiber alkali-resistant coated meshes. Therefore, we can also call it natural alkali-resistant glass fiber mesh.
The disadvantage of alkali-resistant glass fiber mesh is the high production cost, which is related to zircon, rutile, and melting temperature. Also, because of its short material properties, the initial strength is not as good as that of medium-alkali and alkali-free mesh.
