How to choose epoxy fiberglass board?
The epoxy glass fiber board on the market is generally divided into: 3240 epoxy glass fiber board and FR4 epoxy glass fiber board.
When we buy, there will be a distinction between halogen-free and halogen-free, so what are the halogen elements used in epoxy glass fiberboard? What is the difference between halogen-free and halogen-free? How should we choose when we buy?
Let’s first talk about what halogen is? What is its role?
The halogen elements mentioned here refer to fluorine, chlorine, bromine, iodine, and astatine. They can play a flame retardant effect, but they are toxic. If they burn, they will release harmful gases such as dioxins and benzofurans. , It also has heavy smoke and odor, which is easy to cause cancer and great harm. It also caused a bad hazard to the environment.
Since halogen elements are harmful, why do so many people choose this kind of thing? Of course, the most important thing is price. Although halogen-free is good in all aspects, the price is slightly more expensive. But there is no essential difference between halogen-free and halogen-free.
Because the halogen-free epoxy glass fiber board is added with phosphorus, nitrogen and other elements, it can also play a flame retardant effect. When the phosphorus-containing resin burns, it will be decomposed into metaphosphoric acid by heat to form a protective film, which prevents the epoxy glass fiber board from contacting the air. , Without sufficient oxygen, the conditions for combustion cannot be reached, and the flame goes out by itself. But halogen-free is more environmentally friendly and is more conducive to the future development of insulating materials.
Not only that, the halogen-free epoxy glass fiber board has many advantages such as moisture resistance, high temperature resistance, and stable thermal performance. It can be used in a humid environment, even if you accidentally touch chemicals, you don’t have to worry about being corroded. However, due to the high price of halogen-free epoxy glass fiber board, it is restricted. However, with the development of technology and the improvement of insulation materials, we believe that this environmentally friendly board will be widely promoted.