描述
塑料PBT树脂原材料
建筑装饰行业
交通运输行业、广告行业
电气、化工机械、汽车行业
塑料PBT树脂原料
聚对苯二甲酸丁二醇酯，简称PBT。它是对苯二甲酸和1,4-丁二醇的缩聚物。PBT和PET一起被称为热塑性聚酯
b.耐热老化：增强的UL温度指数达到120~140℃（户外长期老化也很好）
c.耐溶剂性：无应力开裂
d.对水的稳定性：PBT在与水接触时容易分解（在高温高湿环境中小心使用）；e、 电性能：1。绝缘性能：优良（湿度和高温能保持电气性能稳定，是制造电子产品的良好选择，是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：普通设备注塑或挤出成型。由于结晶速度快，流动性好，模具温度也低于其他工程塑料。加工薄壁零件只需几秒钟，而大型零件只需40-60秒
2。PBT的应用（通常指改良品种）
a.电子电器：连接器、开关零件、家用电器、配件、小电器盖或（耐热性、阻燃性、电气绝缘性、成型加工性）<汽车：
1。外部部件：主要包括角栅、发动机散热罩等
2。内部零件：主要是内窥镜支架、雨刮器支架和控制系统阀门；3.汽车电器件：汽车点火线圈扭管及各种电器连接器等（汽车用PBT的数量不如尼龙、聚碳和聚甲醛，但随着低翘曲PBT的出现，未来肯定会用于汽车零部件。）
c.机械设备：录像机皮带传动轴、电子计算机盖、汞灯盖、电熨斗盖、烘焙机零件及大量齿轮、凸轮、按钮、电子表壳、，相机零件（具有耐热、阻燃要求）
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Plastic PBT Resin Raw Material
Architecture Decoration Industry
Transportation Industry, Advertisement Industry
Electric & Electrical, Chemical Machinery,
Automobile Industry
Plastic PBT Resin Raw Material
Product Details
Plastic PBT Resin raw Material
Polybutylene terephthalate, referred to as PBT. It is a polycondensate of terephthalic acid and 1,4-butanediol. PBT and PET together are known as thermoplastic polyesters.
Characteristics and applications of PBT
1. Characteristics of PBT
a. Mechanical properties: high strength, fatigue resistance, dimensional stability, and small creep (very little change under high temperature conditions);
b. Heat aging resistance: the enhanced UL temperature index reaches 120~140 ℃ (outdoor long-term aging is also very good);
c. Solvent resistance: no stress cracking;
d. Stability to water: PBT is easily decomposed in contact with water (use caution in high temperature and high humidity environments); e. Electrical properties: 1. Insulation properties: excellent (humidity and high temperature can keep electrical properties stable, and it is a good choice for manufacturing electronic, Ideal material for electrical parts); 2. Dielectric coefficient: 3.0-3.2; 3. Arc resistance: 120s
f. Molding processability: injection molding or extrusion molding with ordinary equipment. Due to the fast crystallization speed and good fluidity, the mold temperature is also lower than other engineering plastics. When processing thin-walled parts, it only takes a few seconds, and it only takes 40-60s for large parts.
2. Application of PBT (usually refers to modified varieties);
a. Electronic appliances: connectors, switch parts, household appliances, accessory parts, small electric covers or (heat resistance, flame resistance, electrical insulation, molding processability);
b. Car:
1. External parts: mainly include corner grids, engine heat release escutcheons, etc.;
2. Internal parts: mainly endoscope stays, wiper brackets and control system valves; 3. Automotive electrical parts: automotive ignition coil twisted tubes and various electrical connectors, etc. (The number of PBT used in automobiles is not as good as that of nylon, polycarbon and polyoxymethylene, but with the emergence of low warpage PBT, it will definitely be used in auto parts in the future.)
c. Mechanical equipment: belt drive shaft of video tape recorder, electronic computer cover, mercury lamp cover, electric iron cover, baking machine parts and a large number of gears, cams, buttons, electronic watch casings, camera parts (with heat-resistant, flame retardant requirements)
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