What does PVC stand for?
PVC is an acronym for PolyVinyl Chloride and is a thermoplastic polymer accidentally discovered in the 1920s and commonly used in construction. In general, PVCs are separated into two types, rigid and flexible.
What is PVCâ€™s plastic number?
PVC is plastic number 3.
What is the difference between thermoplastic and thermosetting plastics?
Plastics are divided into two groups depending on how it reacts to heat. Thermoplastics can be repeatedly softened by heating and hardened by cooling. Thermosetting plastics, however, harden permanently after being heated once.
What does HDPE stand for?
HDPE is an acronym for High Density PolyEthylene and is a thermoplastic prepared from ethylene by a catalytic process. The global market for HDPE in 2007 is around 30 million tons.
What is HDPEâ€™s plastic number?
The recycling number for HDPE is #2.
HDPE is a very commonly recycled type of plastic and is well accepted in most recycling centers.
What is Injection Molding?
Injection molding is a manufacturing process that forms plastic (both thermoplastic and thermosetting) into usable shaped parts, such as a toothbrush.
How does injection molding work?
Before any melting of plastic can occur, a mold must first be manufactured. Molds are typically composed of steel or aluminum and comes in two parts, the injection mold and the ejector mold. The design of the product is precision machined between the two pieces of the mold.
What does BPA stand for?
BPA is an acronym for Bisphenol A, a organic compound produced in large quantities for use primarily in producing polycarbonate plastics, polyvinyl chloride plastics, and epoxy resins.
Where is Bisphenol A found?
Polycarbonate (PC) is a thermoplastic polymer used in electronic components, construction materials, data storage, automotive parts, aircraft components, security components, and in medical applications. Polycarbonate plastic is tough, nearly shatterproof, and highly transparent to visible light. Popular uses for polycarbonate plastic is in sunglass, eyeglass, CDs and DVDs.
These red, fashionable, sporty-looking, recycled plastic bag shoes (pictured above) are designed by Israeli designer Galit Begas and brings awareness about plastic bag recycling. They will go on display as part of the Bezalel Academy of Arts and Design Jerusalemâ€™s Thinking Hands show during Milan Design Week (2011).
While this is a very neat concept, I personally do not think they will hit shelves anytime soon. Here’s why:
Plastic bags and wraps are typically made from type-2 high-density polyethylene (HDPE) and type-4 low-density polyethylene (LDPE) plastic. A general rule of thumb when recycling plastic bags is to make sure the plastic bags are empty and clean. Do not include used plastic food wrap, bags with food residue, or material that has been painted or glued. Doing so will contaminate the recycled material making the entire load unusable. Unusable plastics are usually thrown away and land filled.