1. What is halogen -free base material

Radin-free substrates: According to the JPCA-ES-01-2003 standard, chlorine (C1) and bromine (br) contents of less than 0.09 % WT (weight ratio) are defined as halogen-free copper plates. (At the same time, the total CI+BR total ≤0.15 % [1500ppm])

The halogen -free materials are: TUC's TU883, ISOLA's DE156, GreenSpeed series, S1165/S1165m, S0165, etc.

2. Why do you want to ban braised

Halogen refers to the halogen elements in the chemical element cycle table, including fluoride (F), chlorine (CL), bromine (br), and iodine (i). There are currently flame retardant substrates, FR4, CEM-3, etc., and the flame retardant is mostly bromide epoxy resin.

Related institutions have shown that halogen containing flame retardant materials (polymer polybrine PBB: polymer polyetramide pedibor PBDE), when the fire burns is abandoned, the two evils (Dioxin Diosin TCDD), benzfuran (Benzfuran, etc.) will be released. The amount of smoke is large, the smell is unpleasant, there are high toxic gases, carcinogenic, and cannot be discharged after the human body's intake, which seriously affects health.

Therefore, the European Union's laws are prohibited from the use of six substances including PBB and PBDE. China Information Industry also requires that electronic information products that invest in the market cannot contain lead, mercury, hexavalent chromium, polymer polybrine or polybrotic benzene ether.

It is understood that PBB and PBDE have basically no longer used in the copper covering industry. More use of bromodromer such as Tethelvarphenol A, di bromol, etc. other than PBB and PBDE. Essence

Although this type of bromine -containing flame retardant has no laws and regulations, this type of bromine copper -covered plate will release a large amount of toxic gases (bromide) and smoking volume when burning or electrical fire fires. Large; when the PCB is a hot air -made flat and component welding, the board is affected by high temperature (> 200), and the trace amount of hydrogen bromide will also be released; whether it will also produce toxic gases and is still under evaluation.

In summary, the negative consequences of halogen as the use of raw materials have huge impact, and it is necessary to ban halogen.

The phosphorus system and phosphorus nitrogen system are mainly. When the phosphorus resin is burned, it is heated and decomposed to form polymer phosphate. It is extremely dehydrated. Real flame retardant effects. Polymer resin containing phosphorus nitride compounds produce non -combustible gases during combustion to help the resin system flame retardant.