C-PLA (Crystallized Polylactic Acid) is a type of biodegradable plastic made from plant-based sources such as corn starch, sugarcane, and other vegetable materials. It is a type of PLA (Polylactic Acid) that has been specially processed to increase its crystallinity and make it more heat-resistant.
C-PLA is often used as an alternative to traditional petroleum-based plastics because it is biodegradable, meaning that it can be broken down by microorganisms into natural substances such as carbon dioxide and water. This makes C-PLA a more environmentally friendly option than traditional plastics, which can take hundreds of years to decompose in the environment.
C-PLA is commonly used to make disposable cups, plates, cutlery, and other food packaging items. It has become increasingly popular in recent years as consumers have become more concerned about the environmental impact of disposable products.
Thermoforming is a popular method for shaping C-PLA into various products such as food packaging containers, disposable cups, trays, and more. Here are some tips for using C-PLA with thermoforming machines:
- Temperature: The temperature of the thermoforming machine should be set according to the manufacturer’s recommendations for C-PLA. Generally, the temperature range for C-PLA is between 160°C to 180°C.
- Heating time: C-PLA requires a longer heating time compared to other materials. Generally, the heating time for C-PLA is between 60 to 90 seconds.
- Cooling time: After forming the C-PLA sheet into the desired shape, it needs to be cooled down quickly to maintain its shape. The cooling time should be around 10 to 20 seconds.
- Mold design: The thermoforming mold design should be optimized for C-PLA to ensure proper forming and minimize any defects such as warping or cracking. The mold should also be coated with a release agent to prevent sticking.
- Sheet thickness: The thickness of the C-PLA sheet used in thermoforming should be chosen according to the size and shape of the product being formed. Thicker sheets may require longer heating and cooling times, while thinner sheets may be more prone to cracking.
- Quality control: Regular quality checks should be performed to ensure that the formed products meet the desired specifications and are free from defects. Any defects should be identified and addressed immediately to prevent waste and ensure consistency in product quality.