Wide application and advantages of PBT materials in injection molding

Table of Contents

The quality of injection molding is affected by many factors, including processing equipment, materials and processes. In this city full of innovative vitality, modern processing equipment emerges in an endless stream, but whether the injection molding factory is willing to invest money is the key. And the processing technology is the core competitiveness of each manufacturer. In injection molding, various processing materials are abundant, among which PBT is used particularly frequently.

Injection molding manufacturers prefer PBT mainly because of its advantages:

1. Superior mechanical properties

PBT exhibits good impact toughness. After being reinforced with glass fiber, its mechanical properties are significantly improved. The strength of PBT under various conditions is better than POM, PC and PPO. Injection molding uses its creep resistance to process at different temperatures, and the stress changes little, and the fatigue resistance is also strong.

2. Excellent thermal properties

As a crystalline polymer, PBT has a distinct melting point. When the processing temperature exceeds 270℃, the material begins to decompose and discolor. By adding glass fiber to PBT, the heat deformation temperature can be increased to 200-210°C, and it can be used for a long time in an environment of 140°C, so PBT is suitable for making high-temperature working products.

3. Excellent electrical properties

The molecular structure of PBT is symmetrical and regular, which gives it excellent electrical properties, including high resistivity and dielectric strength, enabling it to work safely in high temperature and harsh environments. If the products produced by injection molding require a certain degree of conductivity, PBT is also an important choice.

In addition to PBT, injection molding also uses materials such as PA and PC. Each material has its own unique advantages. When selecting materials, injection molding factories not only consider whether the material properties meet the product requirements, but also pay attention to the cost of the materials. The lower the material cost, the lower the overall cost of PBT Injection Molding Service, thereby increasing the profit margin of the injection molding factory.