PBT树脂大部分被加工成配混料使用，经过各种添加剂改性，与其他树脂共混可以获得良好的耐热、阻燃、电绝缘等综合性能及良好的加工性能。广泛用于电器、汽车、飞机制造、通讯、家电、交通运输等工业。例如PBT经玻璃纤维等改性后，可用于制造要求长期在较高温度的工况下，尺寸要求稳定性高的电子零部件。PBT的击穿电压高，适用于制作耐高电压的零部件，由于其熔融状态的流动性好，适合注射加工复杂结构的电器零件，如集成电路的插座、印刷线路板、计算机键盘、电器开关、熔断器、温控开关、保护器等。汽车保险杠、化油器、火花塞、供油系统零部件、点火器等。在通讯领域PBT 广泛用于程控电话的集成模块、接线板，电动工具等。

PBT的应用（通常指改性品种）；

a、电子电器：连接器、开关零件、家用电器、配件零件、小型电动罩盖或（耐热性、阻燃性、电气绝缘性、成型加工性）；

b、汽车：

1、外装零件：主要有转角格珊、发动机放热孔罩等；

2、内部零部件：主要有内镜撑条、刮水器支架和控制系统阀；

3、汽车电器零件：汽车点火线圈绞管和各种电器连接器等。                                                                                                                                                                                                                                             Main uses PBT resin is mostly processed into batching use, after a variety of additives modified, good heat resistance, flame retardant, electrical insulation and other comprehensive properties as well as good processability can be obtained by blending with other resins. Widely used in electrical appliances, automobiles, aircraft manufacturing, communications, home appliances, transportation and other industries. For example, PBT modified by glass fiber, can be used in the manufacture of long-term requirements in high temperature conditions, size requirements of high stability of electronic components. Because of its high breakdown voltage, PBT is suitable for making parts with high voltage resistance. Due to its good fluidity in melting state, PBT is suitable for injection processing of electrical parts with complex structure, such as integrated circuit sockets, printed circuit board, computer keyboards, electrical switches, fuses, temperature switches, protectors, etc. . Car bumpers, carburetors, spark plugs, fuel supply system parts, igniters and so on. In the field of communication PBT is widely used in the integrated module of program-controlled telephone, wiring board, Power Tools and so on. The application of PBT (usually refers to modified varieties) ; Electrical and electronic appliances: connectors, switch parts, household appliances, accessories parts, small electric cover or (heat resistance, flame resistance, electrical insulation, molding processing) ; B, automobile: 1, external parts: the main corner grille, the engine vent hole cover, etc. 2, internal parts: the main mirror strut, wiper bracket and control system valve; Automobile electrical parts: automobile ignition coil winch and all kinds of electrical connectors.                                            

特性

a、机械性能：强度高、耐疲劳性、尺寸稳定、蠕变也小（高温条件下也极少有变化）；

b、耐热老化性：增强后的UL温度指数达120~140℃（户外长期老化性也很好）；

c、耐溶剂性：无应力开裂；

d、对水稳定性：PBT遇水不易分解；

e、电气性能：

1、绝缘性能：优良（潮湿、高温也能保持电性能稳定,是制造电子、电气零件的理想材料）；

2、介电系数：3.0-3.2；

3、耐电弧性：120s

f、成型加工性：普通设备注塑或挤塑。由于结晶速度快，流动性好，模具温度也比其他工程塑料要求低。在加工薄壁制件时，仅需几秒钟，对大部件也只要40-60s即可。

    Characteristics A, mechanical properties: high strength, fatigue resistance, dimensional stability, creep is also small (high temperature conditions also very little change) ; B, heat aging resistance: the UL Temperature Index reached 120 ~ 140 ° C (outdoor long-term aging is also very good) ; C, Solvent Resistance: no stress cracking; D, water stability: PBT is not easy to decompose in the presence of water; E, electrical performance: 1, insulation performance: excellent (wet, high temperature can also maintain electrical performance stability, is the manufacture of electronic and electrical parts of the ideal material)2, dielectric coefficient: 3.0-3.2; 3, Arc Resistance: 120SF, molding processing: ordinary equipment injection or extrusion. The mold temperature is lower than other engineering plastics due to its high crystallization speed and good fluidity. In the processing of thin-walled parts, only a few seconds, for large parts only 40-60s can be.