Here are some key properties and applications of polyvinylidene chloride:
1. Barrier Properties: PVDC has excellent barrier properties against oxygen, carbon dioxide, and water vapor. This makes it an ideal material for packaging food products that are sensitive to environmental conditions, such as meat, cheese, and produce.
2. Transparency and Flexibility: PVDC is a transparent and flexible plastic, making it suitable for packaging visual merchandising. It allows consumers to see the product inside the packaging without compromising on product protection.
3. Chemical Resistance: PVDC is resistant to many chemicals, including acids, alkalis, oils, and solvents. This property makes it useful for packaging products that may come into contact with these substances.
4. Heat Resistance: PVDC has good heat resistance and can withstand temperatures up to 160 degrees Celsius (320 degrees Fahrenheit). This allows it to be used in a variety of food packaging applications, including microwave packaging.
5. Non-flammability: PVDC is self-extinguishing and does not support combustion. This safety feature makes it suitable for use in packaging materials that require fire resistance.
In addition to food packaging, polyvinylidene chloride is also used in a variety of other applications, such as:
- Wire insulation
- Construction materials
- Pipes and fittings
- Medical devices
- Pharmaceutical packaging
Overall, polyvinylidene chloride is a versatile and valuable plastic material that offers a combination of barrier properties, flexibility, chemical resistance, heat resistance, and non-flammability. These properties make it suitable for a wide range of packaging and industrial applications.
