Tag: plastic

Banana Plastic:Plastic from Fruit that Rivals Kevlar
March 30, 2011

Bananas are good for a lot more than just potassium. They can remove toxic metals from water and be used to make maxi pads for women in developing countries or underwear for men. Now a group of scientists from Sao Paulo State University have developed a way to use the fibers from bananas, pineapples, and other fruits to create incredibly strong, lightweight plastics. The nanocellulose fibers make a plastic that’s up to four times stronger and...

Plastic Injection Molding: How it's done
November 16, 2010

Injection molding (British English: moulding) is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the mold cavity.After a product is designed, usually by an industrial designer or an engineer, molds are made by a moldmaker (or toolmaker) from metal, usually...

Plastic Bottles: How it's done
November 13, 2010

Plastic bottles are made with a variety of resins, the most popular of which is high-density polyethylene (HDPE), Low-density polyethylene (LDPE) and polyethylene terephthalate (PET) are also popular resins used to make different types of plastic bottles. PET is most often used to make plastic bottles for water and soft drinks, and the above video will demonstrate the manufacturing process. The plastic that eventually becomes a bottle starts out as...

Vinyl toys: How it's done
November 2, 2010

  Take a peek inside the Obitsu Factory, which has been manufacturing Japanese toys since 1966. Rotational molding, also known as rotomolding, rotocasting or spin casting, is a molding process for creating many kinds of mostly hollow items, typically of plastic. A heated hollow mold is filled with a charge or shot weight of material, it is then slowly rotated (usually around two perpendicular axes) causing the softened material to disperse and...