Categories
C&EN Materials Chemistry

The materials science of cycling – in C&EN

May was National Bike Month, and at the end of June this year’s Tour de France kicks off, so what better time to look at the materials science of cycling? This month’s edition of Periodic Graphics in Chemical & Engineering News looks at the various alloys and polymers used to make bike frames, tires, and […]

Categories
Materials Chemistry

The chemistry of disposable nappies: absorbency, wetness indicators and waste

Five thousand: that’s the number of nappy changes the average child will need. There are several nappy choices available to parents, but disposable nappies make up a large portion of the market – and there’s a fair amount of chemistry behind how they keep a baby dry.

Categories
C&EN Materials Chemistry

Metal-air batteries: Present and potential

In the future, metal-air batteries have the potential to better the storage abilities of the lithium-ion batteries we currently use for a range of applications. Here, we look at a selection of the different types being developed, their current capacities, and what the future might hold. View the full graphic in Chemical & Engineering News.

Categories
Environmental Chemistry Materials Chemistry

What’s your biodegradable coffee cup made of – and how biodegradable is it?

Has your local coffee shop recently switched to biodegradable cups? Or maybe your workplace canteen has made the switch to biodegradable cutlery? Perhaps the plastic packaging of your favourite magazine is now a biodegradable wrapper? You might wonder what materials are behind these biodegradable products, and exactly how much better they are for the environment […]

Categories
C&EN Materials Chemistry

How do different light bulbs work? – in C&EN

Light bulbs come in different shapes, sizes, and types. How do these different types of bulb work? This month’s edition of Periodic Graphics in Chemical & Engineering News sheds some light on the materials different bulbs use and compares their attributes. View the full graphic on the C&EN site.

Categories
Chemistry in the News Materials Chemistry

Why can leaves cause train delays? The chemistry of leaves on the line

Autumn is here, and for most of us, it’s a time of beauty as the leaves cascade through an array of hues before pirouetting down from the trees. If you have to travel by train, however, you might tire of ‘leaves on the line’ being the supposed cause of train delays. It turns out to […]