What is PC PBT Plastic

With the development of industrial electrical equipment towards high safety, high durability and lightweight, PC PBT plastic is gradually replacing some metal and pure engineering plastic solutions. The flame retardant grade and chemical resistance of PC+PBT 357U make it have the potential for continuous growth in future industries such as intelligent manufacturing, renewable energy equipment and rail transit.

01: Material Overview

PC+PBT 357U is a non-reinforced impact-modified flame-retardant composite material launched by Saudi Basic Industries Corporation (SABIC), belonging to the pc pbt plastic system. This material combines the toughness of polycarbonate (PC) with the chemical resistance of polybutylene terephthalate (PBT), demonstrating outstanding comprehensive performance in mechanical, electrical and industrial enclosure applications.

  ・Material shape: Granular
  ・Processing method: ép phun
  ・Flame retardant grade: HB, V-0.5VA
  ・Melt index: 8 cm²/10min
  ・Notched impact strength: 54.48 kJ/m²
  ・Heat distortion temperature: 137℃

02: In-depth Performance Analysis

Impact improvement formula

Thanks to the high toughness of PC substrate and the crystalline structure of PBT, PC+PBT 357U still maintains a notch impact strength of 54.48 kJ/m² under low-temperature and high-stress conditions, making it suitable for industrial enclosures and structural components that require drop resistance and impact resistance.

Multi-level flame retardant performance

This material not only meets the UL94 V-0 level but also satisfies the 5VA grade requirements at certain thicknesses, indicating that it has higher fire safety in the industrial electrical field.

Chemical corrosion resistance

The crystallinity of PBT endows the material with excellent chemical resistance, enabling it to resist erosion by oils, lubricants, weak acids and alkalis, and extend its service life in both outdoor and industrial environments.

Ổn định nhiệt

The heat distortion temperature reaches 137℃, ensuring that the material maintains structural stability under medium and high-temperature working conditions, and is suitable for the requirements of electrical components and high-power equipment casings.

03: Compatibility of processing technology

Molding method: Injection molding is recommended, which can achieve batch production of complex geometry and fine appearance.

Flow performance: A melt index of 8 cm²/10min ensures good mold filling capacity while guaranteeing mechanical properties.

Mold suggestion: Maintain the surface smoothness of the mold to achieve better appearance quality; It is recommended to rationally distribute the gate positions to reduce warping and deformation.

04: Typical application fields

Industrial electrical components

Such as switch panels, distribution box shells, spool, etc., which are flame-retardant, impact-resistant and weather-resistant.

Outdoor industrial equipment casing

Its impact resistance and chemical resistance make it suitable for the shells of wind power equipment and communication equipment.

Mechanical components

In situations that require high toughness and electrical safety, such as insulating covers and control panels.

05: Selection Suggestions

If the project has extremely high requirements for flame retardancy (such as UL 5VA) and needs to maintain the integrity of the appearance, PC+PBT 357U can be given priority.

If there are additional requirements for the impact resistance of structural components, the high-stress areas can be appropriately thickened in the design.

If the molding cycle needs to be shortened during processing, it can be considered to optimize the coordination with mold temperature control to give full play to the advantages of material flow performance.

06: Juyuan Supply Advantage

As an international trader of plastic raw materials, Juyuan provides customers in the pc pbt plastic field:

  ・Stable spot goods and global procurement channels

  ・Logistics and distribution capabilities covering multiple countries

  ・Material selection and processing parameter consultation services

  ・Price and delivery time guarantee for long-term cooperative customers

Phần kết luận

PC+PBT 357U is not merely a material; it is an industrial electrical solution that combines safety and durability. Against the backdrop of the global demand for high-performance flame-retardant plastics constantly growing, it will become the preferred choice for manufacturers to strike a balance among performance, reliability and processing efficiency.

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