Halogen compounds are often used as flame retardants because of their high ignition points. It can prevent fire better. The addition of halogen in polymer products such as plastics can improve their ignition point, which is higher than that of ordinary polymer materials, and the ignition point can reach 300℃. Once burned, it emits halide gases that quickly absorb oxygen and extinguish the fire.The earliest printed circuit board materials used for this purpose added halogens to the PCB material.but halogen flame retardants added to the polymers cannot be recycled and will release harmful substances during combustion and heating. What's more, this toxic substance can persist in the environment for years, or even a lifetime, accumulating in organisms that cannot be expelled. It threatens human health, the environment and future generations. Between 1999 and 2000, Sweden and the Netherlands proposed to detect bromine in human blood. In 2000, a Japanese study found that brominated flame retardants can accumulate in high concentrations in human blood. These findings and accidents are a warning against the use of halogen flame retardants.
In the European Union, the United States, Japan, and other countries, they have enacted various laws or directives restricting or banning the use of halogen flame retardants. Material manufacturers are also investing in manpower and technology to develop alternatives to halogen flame retardants. Flame retardants commonly used today include phosphorus, nitrogen and some inorganic compounds. And then what is halogen free PCB that we hear so much about now. Here are some of our common halogen free PCB material:
1. When receiving an inquiry about halogen free requirements from the customer, the relevant department shall be notified to conduct a prenatal evaluation to confirm whether the customer's requirements can be met
4. Procurement control: the purchasing department is required to note all halogen-free materials when placing orders, and the products must meet the halogen free PCB legislation. Meanwhile, the supplier is required to provide RoHS and halogen-free SGS test report and MSDS composition list
5. Material input control: all halogen free PCB material sent by suppliers must be labeled with halogen-free label, confirming supplier's COC, and every batch of raw materials must be tested for halogen-free environmental protection
High-quality products come from strict control, PCBONLINE has always been in strict control of quality. If you have any questions about halogen free products, please timely communication with me. We can help you evaluate whether halogen free products are in line with your project. We will try our best to save your halogen free PCB cost. If your halogen free product has been completed, you can directly quote and place an order on our web-page.