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As a professional in various industries, it is important to be able to identify different materials accurately. PVC and PVDC are two commonly used materials in the packaging industry, but they have different properties and applications. In this post, we will discuss how to distinguish between PVC and PVDC.

Firstly, PVC (Polyvinyl Chloride) is a thermoplastic polymer that is widely used in construction, healthcare, and packaging industries. It is a versatile material that is easy to process and has good chemical resistance. PVC is commonly used in packaging for food, pharmaceuticals, and consumer goods. It is also used in construction for pipes, flooring, and roofing.

On the other hand, PVDC (Polyvinylidene Chloride) is a barrier material that is used to protect food and pharmaceutical products from moisture, oxygen, and other contaminants. PVDC is a transparent, odorless, and tasteless material that has excellent barrier properties. It is commonly used in packaging for meat, cheese, and other perishable products.

So, how do you identify PVC and PVDC? Here are some tips:

1. Look at the color: PVC is usually white or gray, while PVDC is transparent.

2. Check the thickness: PVC is thicker than PVDC.

3. Smell the material: PVC has a distinctive odor, while PVDC is odorless.

4. Test the flexibility: PVC is more flexible than PVDC.

5. Conduct a burn test: PVC burns with a yellow flame and emits a chlorine odor, while PVDC burns with a blue flame and emits a sweet odor.

In conclusion, PVC and PVDC are two different materials with different properties and applications. By following the tips above, you can easily distinguish between the two materials. It is important to use the right material for the right application to ensure the safety and quality of the products.

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