Both plastics have their place in the industry, but one may be more suitable for certain needs than the other. To help you determine which type of plastic to use in your next project, we’ll take a look at some key differences between these materials.
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Cost
PVC and PET are two of the most common materials used for plastic packaging. Each has its own benefits and drawbacks, so it’s important to choose the right material for your product.
PET is a highly recyclable thermoplastic that offers many environmental benefits. It is one of the most recycled plastics in the world, and it can be repurposed in a variety of ways to make new products.
It’s also known for its light weight and durability, which makes it perfect for packaging. In addition, it is also energy-efficient, making it a good choice for manufacturers that want to reduce their carbon footprint.
While PVC prices have stayed steady, imported PET costs moved higher in January. That was largely driven by new contract terms and feedstock costs.
Durability
PVC and PET are both durable, chemical-resistant materials that can be used to package goods. However, PET is more resistant to cracking on impact than PVC.
Moreover, it’s less likely to warp when exposed to high heat. This is an important factor if you’re planning to laminate your ID cards or print them with a retransfer printer.
This is why it’s best to stick with PVC-based decorative film if you want to create a large canvas of intricate designs and patterns.
Spectral imaging in the near infrared region shows that PET and PVC can be differentiated by their spectral signatures, regardless of dimension, product life cycle stage (virgin, recovered, post-consumer), and form (flakes or pieces). In fact, best accuracies are achieved using indices computed from reflectance and continuum data.
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Recyclability
PVC and PET are both thermoplastics which means they can be changed into a new shape at a specific temperature known as the ‘melting point’. This makes them suitable for manufacturing everything from pipes and hoses to cables, faux leather clothing and commercial signage.
However, there are still some problems with recyclability of these materials. For example, composite plastics such as toothpaste tubes and takeaway coffee bottles can contain a mix of different types of plastics which can be difficult to separate.
Fortunately, there are many ways of separating the different plastics within these composites. This can be done through a number of processes, including manual sorting and machinery that filters the plastics.
Appearance
PET and PVC are commonly used in the manufacture of plastic packaging for consumer goods. They are durable, tough, have good plasticity and can be made into many different colors.
They are also known to be environmentally friendly. However, they can be expensive to produce.
For both Pet Resin and PVC resin, a number of absorption peaks are visible at wavelengths of 1200 nm, 1420 nm and 1660 nm. These bands are used to compute ratio and difference spectral indices.
The indices show a high accuracy value (100%) for separation efficacy. They have been validated with reflectance and continuum removal data presenting modest standard deviations.
