Polypropylene is a semi-crystalline polymer which is used vastly due to its unique mixture of attributes, cost and ease of manufacturing. All grades consist of polymer, a neutralizer and antioxidants. Other additives like clarifiers, nucleators, slip additives, UV stabilizers, silica, talc, and calcium carbonate are added to impart specific functionality.
"There are several kinds of polyethylene (LDPE, LLDPE, HDPE, UHMWPE), which are synthesized with different molecular weights and chain architectures.
Polystyrene is a versatile plastic used to make a wide variety of consumer products. As a hard, solid plastic, it is often used in products that require clarity, such as food packaging and laboratory ware. When combined with various colorants, additives or other plastics, polystyrene is used to make appliances, electronics, automobile parts, toys, gardening pots and equipment and more. Polystyrene also is made into a foam material, called expanded polystyrene (EPS) or extruded polystyrene (XPS)
Polyvinyl chloride (PVC)
Polyvinyl chloride (PVC) has got two major types: plasticized and unplasticized PVC. Plasticized PVC (pPVC) is flexible and is applied in flooring, wiring and wallpaper which need flexibility. Unplasticized PVC (uPVC) is rigid and is applied in pipes and cladding industries which need hard materials. Additives are the major discrimination point between the pPVC and uPVC, as they influence the material properties and recyclability.
Polyethylene Terephthalate (PET)
Polyethylene Terephthalate (PET) is one of those plastics playing a crucial role in the everyday life. This commercial product has wide range of application such as packaging, water bottles, fabrics, films, molded parts for automotive, electronics and so on.
Urea is a major source of Nitrogen and vital component of metabolism of broad organisms. Having numerous fruitful characteristics such as being solid, colorless, odorless, neither acidic nor alkaline, highly soluble in water, and relatively non-toxic, Urea is the major part of fertilizers and a high-demanding material.
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