With the development of social economy, the country and society pay more and more attention to safety issues, whether it is production safety or personal and property safety. Therefore, in terms of building materials, it is also required to use environmentally friendly and high-safety building materials. We say that FRP grating is a very safe new type of building material.
What are the specific aspects?
FRP grating is a very good choice in production safety. In the chemical industry, FRP grating can effectively prevent corrosion, ensure the normal operation of machinery, and walkway guardrails are safe and reliable, thus ensuring the safety of personnel. In some electrical workshops, FRP has good insulation, thus reducing the danger of operating platforms due to conduction. In some other flammable and explosive places, metal grids may cause electric sparks due to static electricity and cause fire accidents, while FRP grids can completely avoid these problems. In addition, FRP itself has good fire resistance and flame retardancy. Because FRP grating has the characteristics of strong designability, beautiful appearance, not easy to fade, long service life, safety and reliability, and no maintenance, FRP grating is widely used in architectural decoration, locomotive decoration, automobile decoration, etc. Therefore, it is widely loved by people and widely used in various fields. According to the research of relevant experts, there are three main elements that constitute the superior performance of FRP grating, glass fiber, synthetic resin and interface.
1. Fiberglass
FRP fiber can improve the strength and modulus of elasticity of FRP grating cover plate, and can reduce shrinkage deformation, increase thermal deformation temperature and low-temperature impact strength, so it is the main load-bearing part of FRP grating.
2. Synthetic resin
Synthetic resin is used as the matrix of FRP, which is indispensable for bonding glass fibers into a whole. Since resin is the matrix material, it has an impact on the elastic modulus, heat resistance, electrical insulation, electromagnetic wave permeability, chemical corrosion resistance, weather resistance, aging resistance, etc.
3. Interface
The high performance of FRP grating is related to the quality and durability of the interfacial bonding between fiber and resin. The interface has a great influence on the performance of FRP grating. As we all know, glass fiber is a kind of cylindrical glass, the surface is as smooth as glass, and a thin water film is often firmly adsorbed on the surface, which of course will affect the bonding performance of glass fiber and resin. Especially in the drawing and spinning process of glass fiber, in order to achieve the purpose of clustering, lubricating, and eliminating static electricity, a layer of sizing agent is often coated. Most of this sizing agent is paraffin-like substances. It is isolated from the glass fiber and hinders the bonding of the two.