In recent years, the rapid development and widespread use of FR4 insulation board are inseparable from its many excellent properties. So what are the excellent performances? Today, let's take a closer look.
1. Excellent mechanical performance, high mechanical strength, good fatigue resistance and dimensional stability. Creep is also small, and these properties rarely change under high temperature conditions.
2. Insulation performance: Excellent (able to maintain stable electrical performance even at damp and high temperatures, making it an ideal material for manufacturing electronic and electrical components);
3. The energy consumption for producing PBT is relatively low in engineering plastics, which is of great significance in the context of energy scarcity worldwide.
4. Excellent heat aging resistance, with an enhanced UL temperature index of 120-140 ℃. In addition, outdoor long-term aging resistance is also very good.
5. Water stability: PBT is not easily decomposed when exposed to water at room temperature (caution should be exercised when used in high temperature and humidity environments);
6. Molding processability: Ordinary equipment injection molding or extrusion molding. Due to its fast crystallization speed, good fluidity, and lower mold temperature requirements compared to other engineering plastics. When processing thin-walled parts, it only takes a few seconds, and for large components, it only takes 40-60 seconds.
7. Mechanical equipment: Belt drive shaft of video tape recorder, electronic computer cover, lampshade, electric iron cover, SMC insulation board baking machine parts, as well as a large number of gears, cams, buttons, electronic watch casing, camera parts (with heat resistance and flame retardant requirements)
8. Electronic appliances: connectors, FR4 insulation board switch parts, household appliances, accessory parts, small electric covers (heat resistance, flame retardancy, electrical insulation, forming and processing properties);