After the raw materials are melted at 1600℃, 14.5%-16.7% zirconium dioxide and 6% titanium dioxide are added for melt modification to form liquid glass. This liquid glass is drawn into continuous filaments using a platinum spinneret, then spliced and twisted into woven glass fibers. The diameter of the single filaments is typically in the range of 5-24μm, followed by heat treatment in a drying oven. During the drawing process, the surface of the single filaments is coated with a high-molecular-weight water-soluble epoxy resin and a coupling agent to improve the affinity between the glass fiber and the subsequent alkali-resistant polymer.
The fibers are woven into a warp-weft interwoven woven fabric substrate using a leno weave process. Plain or twill structures can form different mesh sizes from 5×5mm to 10×10mm. In the coating stage, a composite coating of styrene-butadiene rubber and pure acrylic emulsion is applied through constant temperature, constant speed, and constant tension control. This process gives the product a node slip resistance strength of 3.5-4.5N. This coating treatment can effectively resist the erosion of glass fibers by Ca(OH)₂ during the early hydration period of polymer mortar, thus ensuring its alkali resistance.
