Transparent PolyamideTROGAMID^®

There are various transparent resins in your daily life. The famous resins are PMMA (Acrylic resin) and PC (Polycarbonate) and they are often used in optical applications such as lenses. These resins are amorphous resins and they don’t have crystal structure. As a result, light can be transmitted, so amorphous resins such as PMMA and PC are very clear.

On the other hand, in general, amorphous resins such as PMMA and PC have weak chemical resistance. In contrast, even though transparent Polyamide TROGAMID^® is a high-performance resin with semi-crystalline, TROGAMID^® is very clear. Due to its semi-crystalline structure, TROGAMID^® also has excellent chemical resistance with high transparency. It shows TROGAMID^® is almost equivalent to PMMA in terms of optical properties. Therefore, you can use TROGAMID^® for optical lenses, manicure bottles and grease cases which require chemical resistant. In addition, these days, you often need to disinfect your commodities with alcohol. TROGAMID^® is a very suitable material for such situations because of its excellent resistance to alcohol.

As an example of TROGAMID^®'s excellent chemical resistance, the following test was conducted. First, sunscreen cream was applied to TROGAMID^® and PC test pieces, and then they were stored at a constant temperature. After that, the cream was washed off with water and the appearance of the test pieces was examined. As a result, TROGAMID^® showed no change in the appearance of the specimen because TROGAMID^® has high chemical resistance, but the surface of the PC turned white, appearing as if covered with chemical cracks. As a semi-crystalline resin, TROGAMID^® demonstrates superior chemical resistance compared to general amorphous transparent resins.

TROGAMID^® is a microcrystalline resin with high transparency. In terms of transparency, as shown in the graph, it has high transparency in the visible light range. Therefore, TROGAMID^® is suitable for use of optical products and other applications which need excellent optical properties.

In addition to excellent chemical resistance, TROGAMID^® is also highly weather resistant, making it less likely to change color due to UV rays. As shown in the graph, TROGAMID^® has almost the same excellent weather resistance as PMMA. Therefore, you can use TROGAMID^®for outdoor items.

TROGAMID^® is a highly impact-resistant material. In drop weight test, TROGAMID^® neither broke nor developed any cracks.
In addition to its excellent impact resistance and safety properties, TROGAMID^® is also a material with excellent fatigue resistance, making it suitable for the applications which repeatedly undergo mechanical loads. Furthermore, TROGAMID^® is recognized as safe by the Food Sanitation Law of Japan, the U.S. Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA). Therefore, it can also be used for food contact items. TROGAMID^® eCO series is an eco-friendly grade that reduces carbon emissions during production by using biomass-derived raw materials and renewable energy sources for electricity. This is achieved through mass balance accounting, which allows for the reduction of carbon emissions during the manufacturing process.

Polyplastics-Evonik also offers CX films made from TROGAMID^®.
The CX films are of high quality and can be used for optical applications such as displays and lenses which need chemical resistance, optical properties and weatherability.