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High density polyethylene is more commonly recognized as HDPE. HDPE is especially tough. It is basically a thicker, denser form of polyethylene. It is harder and more opaque than polyethylene. HDPE is used to make plastic trash cans, thicker toys (like rubber duckies), laundry detergent bottles and milk jugs.
Low density polyethylene is what we refer to as LDPE. The polymers are more loosely packed. LDPE plastic is very light and flexible. This is the type of plastic used for packaging bread and for kitchen food-wrap. It is also used for making various containers and the plastic rings that hold together six-packs.
PVC, or polyvinyl chloride, is one of the hardest plastics around. Most people are familiar with what a white PVC pipe is. It is also used for sewer pipes and widely used in construction as a building material. Vinyl [url=http://www.getconversational.com]hollister pas cher[/url] siding [url=http://www.achbanker.com/home.php]hollister[/url] and credit cards are other common uses. When softened with plasticizers, it can be used to make medical blood bags, shoes and upholstery.
Polypropylene is a rugged plastic that is highly resistant to most acids and solvents. Therefore, it is the plastic of choice for containing medicines and harsh chemicals. Polypropylene is used to make photographic film because the plastic isn't harmed by all the chemicals used to develop [url=http://www.achbanker.com/home.php]hollister france[/url] film. Polypropylene is somewhat flexible but resistant to wearing out, so it's used on hinged caps for products like mints or liquid coffee creamer.
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The last type we'll discuss here is Polycarbonate. Polycarbonate is super strong, very hard to break and can withstand a lot of heat. We use it to house [url=http://www.rtnagel.com/louboutin.php]louboutin[/url] electronics, make MP3 players, compact discs and DVDs. Because it has high optical and mechanical properties, it is also used to produce [url=http://www.1855sacramento.com/peuterey.php]giubbotti peuterey[/url] sunglass lenses and safety glasses.
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