This month we picked on Polyurethane to have a delve or closer look at, at this end we tend to find its name often abbreviated to ‘urethane’ or even PU for it’s really short name, it’s also not surprising that it’s got a few trade names as well just to muddy the waters even more, but hopefully we’ll be able to cut through all this jargon and help explain simply what this material is all about.
So this month I thought we'd dig into polypropylene or polyprop for short and as we tend to call it. Now all plastics seem to have their very own claim to fame or a party trick and polyprop is no exception, this one can actually help identify itself.
UHMWPE, or ultra-high-molecular-weight polyethylene, to give it its Sunday name, is a really really tough material with one of the highest impact strengths of any other engineering plastic. This plastic is often machined into pretty much anything, from small gears and pulleys to bearings to wear strips etc
As you are perhaps slowly crawling your way along the M1, M6 or the M25 it is quite likely that you are surrounded by various components made of something called polyoxymethylene (POM). But you may also know it as Delrin.
On February 20, 2003, at The Station, a glam metal and rock and roll-themed nightclub, a fire broke out. The fire started just seconds into the band's opening song when pyrotechnics set off by the tour manager ignited flammable sound insulation foam in the walls and ceilings surrounding the stage.
This topic does come up occasionally, especially when discussing the use of industrial plastics in high heat environments or in closed spaces. So what exactly is 'outgassing'? Most plastics contain volatile organic compounds (VOCs).
A lot more component designers these days are looking for ways to replace metal parts with ones made from engineering plastics, and so more and more engineering /machining companies are getting more and more requests to quote for jobs that call for machining plastics, the other upside is that these jobs can also be a bit more lucrative.