To further improve the secure and stable durability of alkali-resistant fiberglass mesh, after being processed into gauze shape, and again coat it with butylbenzene and pure?acrylic, and adopt a constant speed constant tension control technology to make it adhesive ( this process is put forward by BASF from Germany, who developed alkali resistant coating technology for alkali-free glass fiber grid cloth ) .In early times it can effectively resist polymer mortar Ca (OH)2 hydration's erosion to glass fiber mesh cloth. After coating, slip resistance strength of mesh junction reaches 3.5 ~ 4.5N.
Add 14.5% ~ 16.7% of zirconium dioxide and 6% titanium dioxide in the glass, melt under 1600 ℃, draw the platinum into continuous filaments, and then it is pieced toghther and twisted into textile glass fibers. During the drawing process, monofilament is coated with water-soluble polymer aqueous epoxy resin and a coupling agent, in order to satisfy compatibility between fiberglass mesh and the polymer affinity with alkali in the post-processing.
Current national technical standards (JG149-2003)of exterior insulation : fiberglass mesh warp and weft are alkali tensile breaking strength shall not be less than 750N / 50mm, alkali tensile fracture strength retention rate shall be not less than 50%. Weight per square meter ≥130 grams. The JG158-2004 fiberglass mesh warp-wise and weft alkali tensile strength shall not be less than 1250N / 50 mm, alkali tensile fracture strength retention rate shall not be less than 90%, the weight per square meter shall be equal or greater than160 grams.
Specifications are as follows: 1, mesh size: 5mm × 5mm, 4mm × 4mm, 3mm × 3mm. 2, weight per square: 80 grams --160 grams . 3, the length of each volume: 50 m, 100 m or 200 m. 4, width per roll : 1 m --2m. 5, color: White (standard) blue green or other colors. 6 Packing: Blister packaging per roll, four rolls or six rolls of a cardboard box, a 40-foot container can hold 80,000 -150,000 square meters. 7 special specifications and special packaging can be made according to customer's reservation.
Alkali resistance of alkali-resistant glass fiber mesh can not only coat alkali-resistant coating, but also form zirconium, titanium ion hybrid membrane to prevent erosion of the alkaline substance. As time goes by, the chemical state of zirconium is gradually becoming stable. For example, in the table Ⅲ alkali retention rate in alkali-resistant glass fiber mesh cloth is over 85%, far higher than other alkali-resistant glass fiber coated mesh, so it could also be called natural alkali-resistant fiberglass mesh.
