What are the latest medical-grade materials that can improve the molding speed and drug resistance of injection pen injection molding accessories?

Suzhou Huanxin Precision Molding Co., Ltd. Improve the molding speed and drug resistance of medical injection pen injection molding accessories to meet the market demand for high-quality medical devices. The materials used can not only improve production efficiency during the manufacturing process, but also ensure the biocompatibility and long service life of the product.

1. High-performance polyetheretherketone (PEEK)

Features: PEEK, as a high-performance plastic, has excellent high temperature resistance and chemical tolerance, and can maintain stability in harsh chemical environments. Its excellent mechanical strength makes it very suitable for injection pen accessories that require high durability.

Applicable scenarios: Used for components that require drug resistance and high mechanical strength, such as the metering part and drive device of the injection pen.

Molding efficiency: Compared with traditional materials, PEEK has good fluidity and molding accuracy during the injection molding process, which can shorten the production cycle to a certain extent.

2. Polycarbonate (PC) and modified polypropylene (PP)
Features: Polycarbonate materials have excellent transparency and impact strength, which are very suitable for injection pen components that require visualization of drug dosage; while modified PP (such as drug-resistant PP) enhances the material's chemical resistance, and is lightweight and easy to process.
Applicable scenarios: PC is often used for display windows and protective covers, while modified PP is suitable for the main body of various handheld injection devices.
Molding efficiency: Both PC and PP are widely used medical-grade materials with fast molding speed and moderate processing temperature, which are very suitable for mass production.

3. Thermoplastic elastomer (TPE)
Features: The flexibility and comfort of TPE make it very suitable for the hand-held part of the injection pen. Compared with hard plastics, TPE has excellent chemical resistance and drug corrosion resistance, while providing a non-slip grip effect.
Applicable scenarios: Suitable for handles, protective covers and other parts that are in direct contact with patients.
Molding efficiency: TPE has strong co-injection processability and is easy to combine with other materials for molding, which can accelerate production speed and improve assembly efficiency.

4. Medical grade polyoxymethylene (POM)
Features: POM has excellent wear resistance and low friction coefficient, which is very suitable for precision parts of injection pens, such as propulsion mechanisms and metering control components. Its drug resistance and chemical stability also make it an ideal choice.
Applicable scenarios: Used for drive mechanisms with high requirements for friction and wear resistance.
Molding efficiency: POM's high fluidity and thermal stability help to increase molding speed while maintaining high dimensional accuracy, suitable for automated mass production.

5. Polybutylene terephthalate (PBT)
Features: PBT is a high-strength, chemically resistant material that is commonly used for high-load components of medical devices. Its low hygroscopicity allows it to maintain stability even in environments with high humidity.
Applicable scenarios: Commonly used for parts that require high mechanical strength and drug corrosion resistance.
Molding efficiency: PBT has a short molding cycle, high temperature resistance, and is easy to process and form, making it suitable for precision injection molding manufacturers such as Suzhou Huanxin for mass production of injection pen components.