As a high-performance material, quartz fiber cloth's improvement in tensile strength is of critical significance for expanding its application range.
First of all, the quality of the fiber is the basic factor that affects the tensile strength of quartz fiber cloth. High-quality quartz fibers should have uniform diameter, few internal defects, and high purity. During the preparation process, the advanced wire drawing process can accurately control the fiber diameter and reduce stress concentration points caused by uneven thickness. For example, the use of high-precision fusion drawing equipment can control the deviation of quartz fiber diameter within a very small range, thus improving the overall tensile strength. At the same time, strict purification of raw materials and removal of impurities can effectively reduce weak links within the fiber and enhance its tensile resistance.
Secondly, the fiber surface treatment process has a significant impact on tensile strength. Through special surface coating or modification treatment, the bonding interface between fiber and resin matrix (if there is a composite application) can be improved. For example, using a coupling agent to treat the surface of quartz fiber can enhance the chemical bonding between it and organic resin, allowing stress to be transmitted more effectively between the fiber and the matrix, and avoiding a decrease in tensile strength due to interface debonding. In addition, surface treatment can also repair micro-cracks and other defects on the fiber surface, further improving its tensile properties.
Furthermore, the weaving structure design of the fabric is a key link in improving the tensile strength. Reasonable selection of the weaving method, such as using a tight plain weave or a specific multi-layer interwoven structure, can make the fibers more closely intertwined and enhance the synergy under stress. Plain weave can make the quartz fiber evenly stressed in both longitude and latitude directions, effectively dispersing the tensile force and avoiding breakage due to excessive local stress. At the same time, optimizing the twist and density of the yarn can also improve the overall structural stability of the fiber cloth, thereby increasing the tensile strength.
From the post-processing point of view, hot pressing treatment of quartz fiber cloth is a commonly used method to improve tensile strength. Appropriate hot pressing temperature and pressure can further densify the fibers, reduce porosity, and enhance the friction and interaction between fibers. However, the hot pressing process requires precise control of parameters. Excessive temperature or pressure may damage the fiber structure and reduce the tensile strength.
In addition, environmental factors also have a non-negligible impact on the tensile strength of quartz fiber cloth. Long-term exposure to high temperature and high humidity environments may cause fiber surface corrosion or matrix performance degradation, thereby reducing tensile strength. Therefore, during use and storage, corresponding protective measures need to be taken, such as adding moisture-proof and anti-oxidation coatings, etc., to maintain the stability of its tensile strength.
Finally, the quality control system during the production process is crucial to ensure the consistency and reliability of quartz fiber cloth tensile strength. From raw material inspection to monitoring of each production process to finished product testing, strict quality control can promptly detect problems and adjust process parameters to ensure that the tensile strength of the product meets high standards, making it popular in high-end products such as aerospace and electronics. perform better in the field.
