LED Lead Frame Mold PPA and PCT Material

What are LED Lead Frame Mold PPA and PCT Material?

PPA (Polyphthalamide) and PCT (Polybutylene Terephthalate) are two high-performance engineering plastics known for their excellent mechanical properties and heat resistance, widely used in various demanding industrial fields.

PPA (Polyphthalamide)

Definition and Characteristics:

● Chemical Structure: PPA is a semi-crystalline polyamide formed by the reaction of terephthalic acid with diamines.

● High Temperature Resistance: PPA exhibits excellent thermal stability with high glass transition temperature and melting point, making it suitable for use in high-temperature environments.

● Mechanical Strength: PPA offers outstanding mechanical properties with high strength, rigidity, and good wear resistance.

● Chemical Resistance: It withstands many chemicals including oils, solvents, and alkaline substances.

● Low Moisture Absorption: Low water absorption rate maintains stable dimensions and performance in humid environments.

PCT (Polybutylene Terephthalate)

Definition and Characteristics:

● Chemical Structure: PCT is a semi-crystalline polyester synthesized by condensation of terephthalic acid and 1,4-cyclohexanedimethanol.

● High Temperature Performance: PCT exhibits high glass transition temperature and melting point, offering excellent thermal stability and heat resistance.

● Electrical Properties: It has excellent dielectric properties and low dielectric constant, suitable for electronic and electrical applications.

● Chemical Stability: Offers excellent resistance to various chemicals, maintaining stability even at high temperatures.

●Mechanical Properties: Provides high rigidity, strength, and good dimensional stability.

Application for PPA and PCT materials:

PPA and PCT are widely used in plastic molds and injection molding due to their excellent high-temperature performance, as well as outstanding mechanical and electrical properties. They provide reliable performance and long lifespan in demanding applications, making them indispensable high-performance materials in many industrial sectors

Where do XP mold usually use :

XP mold company usually use the PPA and PCT Materials for SMD2835 and SMD3134 in LED Lead Frame Mold area.