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there's another type of plastic money in your wallet - polyethylene terephthalate properties

by:Cailong     2019-07-29
there\'s another type of plastic money in your wallet  -  polyethylene terephthalate properties
It starts at the height of the four-story building.
Made of a plastic called biaxially
Oriented Polypropylene (
Or BOPP for short), this mega-
Bubbles are formed by the melting of the hard particles of the BOPP, and then drop down and fall in the influence of hot air and gravity.
Production is a kind of super
Thin and transparent film that can be pressed and rolled to produce a waterproof material that is difficult to tear.
When printing and cutting into rectangles in high-tech ink, the BOPP pair (And visitors)
The names of only four countries are Australia, New Zealand, Canada and Singapore.
The UK will be counted in this figure from September as it will start producing plastic banknotes using BOPP.
Plastic or polymer, as they are more accurately known, can be found anywhere in the city from the threads of your coat (polyester)
And your travel Cup (
PET (PET)
Pipes under the sidewalk (
Polyvinyl chloride (PVC)
And your car bumper (polypropylene).
The "multiple" bits of each of their names represent "large" because all polymers are large molecules made from multiple repeating parts.
Some are natural, such as amber and natural rubber, but most of our daily use is synthetic.
The nature of the final polymer depends on the molecular type in the chain and the way it is processed-for example, the plastic wrap (food wrap)
Both the rubber and the rubber are polymers, but they behave very, very differently.
The bubble handling of the BOPP turns the material used in the car bumper into a material that is thin enough to bend, roll and put into the wallet.
Polymer banknotes are an invention in Australia-the first time the Australian national science agency CSIRO has developed for the huge growth of counterfeit products in the 1960 s.
By 1998, all Australian notes were polymer, but most countries in the world were trying to catch up.
If you are in the US, the only polymer in your wallet is the store and the credit card.
Your "paper" banknotes are actually made from a mixture of cotton and linen fibers that are mashed into pulp and bleached before being pressed into paper.
This combination not only makes American banknotes durable, but also gives them unique textileslike feel.
So why do we make money from polymers like BOPP?
Well, they are resistant to dirt and moisture, which makes them cleaner than paper money.
They are also more durable-the duration of polymer notes during testing is three to six times longer than that of paper notes.
Perhaps most importantly, they are safer-the BOPP substrates are difficult to manufacture and the polymer notes themselves can carry very complex safety functions.
Canadian paper money even hides a diffraction grating in the transparent part of the maple leaf.
This separates the light so that it can produce a specific pattern-in this case, the denomination of the note.
To watch this video, go to the YouTube page of Steve mold.
Earlier today, the Bank of England announced the design of their first polymer note-the £ 5 note represented by the former Prime Minister Sir Winston Churchill.
It includes a range of features that will make it more difficult to fake them.
Some include colors-
Change the border of the note transparent window (
From purple to green)
, The foil hologram at the bottom of Big Ben, when tilted in one direction, it is characterized by the word "five" and when tilted in the opposite direction, it is characterized by "pound ".
The font is so small that it can only be seen with a magnifying glass and appears under the portrait of the Queen, so
Known as concave printing, it has been used to produce raised text in different places.
In addition to these visible features, there are many other features that occur only when illuminated by light at a very specific wavelength (e. g.
Infrared or ultraviolet rays).
From the polymer notes used in other countries, the new five may also include so-
The so-called "cover" feature that only banks and ATM manufacturers will see-this is the last layer of security checks that mark a ticket as a real ticket.
Other polymer notes will be released in five months-the new £ 10 featuring author Jane Austin will be released in September 2017.
So, the next time you take out the money, you might take a closer look-they contain a lot of interesting scientific knowledge!
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