A sizing is an emulsion used during the continuous quartz fiber drawing process to impart lubricity, bonding, softness, and antistatic properties to the monofilaments and precursors, facilitating the drawing, spinning, or fiberglass forming processes.
During the quartz fiber drawing process, a specialized surface treatment agent composed primarily of an organic emulsion or solution is applied to the surface of the quartz fiber. This coating effectively lubricates the fiber surface, consolidates hundreds or even thousands of quartz fiber filaments into a bundle, and modifies the surface condition of the quartz fiber.
This not only meets the processing requirements of the precursor filaments in subsequent processing steps but also promotes bonding between the quartz fiber and the reinforcing polymer in composite materials.
Sizing is crucial for both the production and application of quartz fiber. Without this lubricating and adhesive coating during the high-speed drawing of extremely fine quartz fibers, not only will severe wear and tear lead to broken and flying fibers, rendering the drawing process impossible, but it will also be impossible to process hundreds or even thousands of smooth, dispersed, and easily broken monofilaments into a practical product.
