Archive | Plastics

Polyethylene bottles being picked up from a beach

The Advantages and Disadvantages of Polyethylene

Polyethylene is the most popular and commonly used plastic in the world, used in shopping bags, toys and shampoo bottles. There are over 100 million tonnes of the material’s resins produced annually, which accounts for 34% of the plastics market. Following on from our blog post about the advantages and disadvantages of polypropylene, in this […]

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Recycling box for plastics

Why the EU does Not Support Oxo-Degradable Plastics

Oxo-biodegradation is biodegradation, defined as being “degradation resulting from oxidative and cell-mediated phenomena, either simultaneously or successively. Oxo-biodegradable plastics are made from polymers such as polyethylene, polypropylene or polystyrene and contain a pro-degradant catalyst which helps the plastic degrade in the presence of oxygen.

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Bottle caps made from polypropylene

Advantages and Disadvantages of Polypropylene

Polypropylene is considered the steel of plastics due to its versatility; it can be modified in countless ways to suit multiple applications. It has become the second-most widely produced plastic in the world. When it was first made in 1951, its popularity soared within six years, and today is the material of choice for manufacturers […]

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Collection of Green pipes

Different Varieties of Bioplastics

Currently, there is a lot of public interest in materials that are biodegradable, recyclable, compostable, and renewable. Plastics face the brunt of a lot of that criticism: the government has pledged to eliminate all avoidable plastic packaging in the UK by 2030 and all avoidable waste plastic by 2042. However, the environmental impact of plastic […]

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Polymer chemical bond

A History of Polyethylene

Despite not even being theorised a century ago, today, polyolefin shrink wrap is in huge demand. There has been a century of rapid innovation that has led to us being able to use the stuff today. In this article, we explore the unlikely history of polyethylene.

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bags of spices in a market

What is a polyolefin?

Polyolefin shrink wrap is a widespread shrink wrap material, but what exactly polyolefins are can be confusing. Here at Kempner, we have written a brief guide to polyolefins to explain what they are and why they are so popular around the world, not least for shrink wrapping solutions.

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