Search results
Results from the WOW.Com Content Network
Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.
The Resin Identification Code (RIC) is a technical standard with a set of symbols appearing on plastic products that identify the plastic resin out of which the product is made. [1] It was developed in 1988 by the Society of the Plastics Industry (now the Plastics Industry Association ) in the United States, but since 2008 it has been ...
Plastic recycling is the processing of plastic waste into other products. [1] [2] [3] ... Plastic identification code Type of plastic polymer Properties
The arrows are formed into a flat, two-dimensional triangle rather than the pseudo-three-dimensional triangle used in the original recycling logo. The resin identification codes can be represented by Unicode icons U+2673 ♳ RECYCLING SYMBOL FOR TYPE-1 PLASTICS; U+2674 ♴ RECYCLING SYMBOL FOR TYPE-2 PLASTICS
Polyethylene terephthalate bottles are mostly recycled as a raw material. In many countries, Polyethylene terephthalate plastics are coded with the resin identification code number "1" inside the universal recycling symbol, usually located on the bottom of the container. [7]
With a high strength-to-density ratio, HDPE is used in the production of plastic bottles, corrosion-resistant piping, geomembranes and plastic lumber. HDPE is commonly recycled, and has the number "2" as its resin identification code. In 2008, the global HDPE market reached a volume of more than 30 million tons. [2]
LDPE has SPI resin ID code 4 Schematic of LDPE branching structure. Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene.It was the first grade of polyethylene, produced in 1933 by John C. Swallow and M.W Perrin who were working for Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. [1]
Resin identification code 1 Alternate 1 Alternate 2. While most thermoplastics can, in principle, be recycled, PET bottle recycling is more practical than many other plastic applications because of the high value of the resin and the almost exclusive use of PET for widely used water and carbonated soft drink bottling.