What special new features does glass yarn have?

glass yarn is made of Fiber Glass tissue as the main raw material. After being soaked in polymer anti-emulsion coating, it has good alkali resistance and flexibility. It is currently widely used in thermal insulation, waterproofing, and waterproofing of interior and exterior walls of buildings. Anti-crack etc. glass yarn has some special properties, which are introduced below.

1. Glass yarn has relatively high node strength, that is, if the nodes of the Fiber Glass slip when it is subjected to tension, small cracks will appear in the early stage of stress. Therefore, when testing the strength of a node in a timely manner, you need to cut a piece of Fiberglass Cloth for testing, with a size of 330mm × 50mm. The strips of the glass yarn used for testing can only be taken in the weft direction and then removed. Only one weft yarn in the middle is left in the yarn. After 50 mm, cut that one short, and then do a tensile test. Generally, the external wall insulation system requires the node strength of the Fiber Glass to be ≧3.2N/single Root thread.
2. Glass yarn has a small deflection of the weaving wires. When weaving the glass yarn, it is difficult to avoid the situation where the wires run all over. If the weaving glass yarn has too obvious deviation, it will cause problems when the force is applied. Eccentricity will affect the final use effect and prevent the glass yarn from playing its role. Generally speaking, within a length of one meter, the number of woven wire deviations cannot exceed 3, otherwise it will be an unqualified Fiber Glass.
3. The glass yarn has low tensile strain, because if the nodes do not slip when the Fiber Glass is subjected to tension and the tensile strain is too large, it will cause cracking. This also requires the use of certain testing methods. Only after passing the test can it be put into production and put into the market.