Glass fiber self-adhesive tape, as a key repair material in the construction field, relies on the synergistic effect of glass fiber substrate and self-adhesive coating as its technical core. The glass fiber substrate is made of high-purity silicon dioxide, aluminum oxide and other raw materials melted at high temperature of 1600 ℃, and then made into continuous fibers with a diameter of 5-10 microns through platinum leak plate drawing process. They are then woven into a grid structure ranging from 8 × 8 mesh to 10 × 20 mesh by a rapier loom. This structure endows the material with high tensile strength (longitudinal fracture strength ≥ 1500N/5cm, latitudinal strength ≥ 1200N/5cm) and deformation resistance. In the freeze-thaw cycle test, the tensile strength retention rate still exceeds 85% after 30 cycles.
The self-adhesive coating adopts a composite system of acrylic copolymer and self-adhesive, achieving dual functions through molecular chain design: the acrylic copolymer provides alkali resistance (strength attenuation rate<5% under pH 12 environment), while the self-adhesive layer ensures an initial bonding strength of 0.8 MPa or above. The fixed technology for warp knitted synthetic yarn proposed in the 2024 utility model patent increases the node peeling strength to 22N/cm by 60% compared to traditional products, effectively solving the problem of strength attenuation in humid and alkaline environments, through the interlocking structure of warp yarns and warp knitted yarns that alternate up and down.
In terms of material innovation, the industry is moving from single functionality to multifunctional integration. For example, the high-temperature resistant self-adhesive tape developed by Suzhou Yanteng Electronics can maintain structural integrity for 45 minutes in a 1000 ℃ open flame test by introducing a silicone rubber anti radiation layer; The environment-friendly products developed by Zhejiang Baiyi Adhesive Products Co., Ltd. use water-based acrylic lotion instead of solvent adhesive, and the VOC emission is reduced to below 5g/m 2, meeting the requirements of the European Union REACH regulations. These innovations have expanded the application scenarios of self-adhesive tapes from traditional buildings to fields such as aerospace and new energy.