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What is the way to improve the heat resistance of plexiglass

by:UNQ     2021-04-28
What is the way to improve the heat resistance of plexiglass? What is the way to improve the heat resistance of plexiglass in the production and processing of plexiglass? Plexiglass improves the force between the chains of polymer materials, which means that side-valence chemical cross-linking occurs in the polymer material chains. Compared with the main-valence chemical cross-linking, the side-valence chemical cross-linking is both It can improve the characteristics of the polymer and maintain the linear structure of the polymer without harming its production and processing. The key way to use side-valent chemical cross-linking to improve the heat resistance of plexiglass is to generate covalent bonds between the bonds of polymer materials. Although the plexiglass anti-wear modification has excellent light transmittance, its surface strength is low, and the wear resistance is poor. It is easy to cause abrasion and wear during the whole application process, resulting in a decrease in light transmittance, which not only seriously harms the appearance of the product The quality, the resistance to ground stress cracking and the impact toughness are significantly reduced, which greatly shortens the service life of plexiglass products. Therefore, it is necessary to carry out anti-wear modification. The common methods at this stage are as follows. What is the way to improve the heat resistance of plexiglass? Ways to improve the heat resistance of plexiglass: improve the role and characteristics of plexiglass molecular structure chain structure and improve the wear resistance of plexiglass itself. When introducing optically active functional groups in the carbon chain, introducing benzene rings in the carbon chain, and in the molecular structure chain The introduction of chemical elements, or according to the way of copolymers, the polymer is changed from a linear structure to a body structure, or a covalent bond is generated in the middle of the molecular structure chain to expand the interaction force between the molecular structures to enhance the surface strength. Nanotechnology composite modification In recent years, scientific research using carbon nanotubes to improve the anti-wear properties of PMMA has caused more and more attention. The study found that according to the convergence method of the origin itself, the purified multi-walled carbon nanotubes can be uniformly distributed in the PMMA substrate to produce nanotechnology polymer materials. The nano-technology polymer material not only has stronger abrasion resistance, but also has smaller friction resistance. The introduction of carbon nanotubes has reasonably improved the surface strength, significantly reduced the friction loss on the surface of the organic glass raw material, and significantly improved the wear resistance of the raw material.
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