DENSITY OF PLASTICS
What is Density of plastic:
The density of a substances is generally known as mass per unit volume. And The SI unit is Kg/m3.
Mass Versus Weight:
Always there is confusion in people between mass and weight. Actually the mass of an object is referred to its weight. In the scientific concepts mass refers loosely to the amount of matter in an object. Whereas weight refers to the force exerted on an object by gravity. In the other words, an object with a mass of 1.0 kilogram with weigh approximately 9.81 newtons on the surface of the earth. (Its multiplied by the gravitational field strength), Where the object weigh will be less at Mars because there gravity is weaker, more on Saturn and negligible in space.
As of conclusion Mass is constant at anywhere in earth but weight is varied due to gravity.
Density of Variety of Plastics, PVC & Its Usage:
Table: 1
| Polymer Generic Name | Abbreviations | Density (gm/cc) | Application or Uses |
| Acrylic Butadiene Styrene | ABS or Acrylic | 1.05 – 1.10 | Sheet, pipe, dolls, four wheeler body parts etc.. |
| Cellulose Acetate | CA | 1.26 | Synthetic fiber, Playing Card, cigarettes filters etc. |
| Ethylene Vinyl Acetate | EVA | 0.95 | Electronic applications |
| Nylon (Polyamide) | PA | 1.02 – 1.08 | Clothing, Fiber etc. |
| Polybutylene | PB | 0.92 | Electric domestic heaters, swimming poll water filter housing, pneumatic tanks etc |
| Polycarbonate | PC | 1.20 | Safety goggles, helmets, engineering used instruments etc. |
| Polyster PBT | Polyster PBT | 1.24 – 1.34 | Electrical Insulators |
| Polyethylene terephthalate | PET | 1.40 | Bottles, food packaging, sheets etc. |
| Polyetherimide | PI | 1.27 | High temperature fuel cells, displays & various military roles. |
| Low Density Polyethylene | LDPE | 0.92 | Trays, Dolls, Laboratory tubes, Plastic bags, container etc. |
| High Density Polyethylene | HDPE | 0.94 – 0.97 | Plastic bottles, corrosion resistant pipes, Plastic lumber, geomembrane etc. |
| Polystyrene | PS | 1.07 | Roofing, Plumbing, Packaging etc. |
| Polypropylene | PP | 0.90 | Packaging, stationery, laboratory equipment, sheets, reusable containers etc. |
| Polysulfone | PSU | 1.25 | Polymeric coating |
| Polyurethane | PU | 1.20 | Construction coating, roofing coating etc. |
| Polyvinyl Chloride-Rigid | PVC-Rigid | 1.40 | Pipes, tubes, sheets, dolls etc. |
| Polyvinyl Chloride-Pipe | PVC-Pipe | 1.44 | Pipe |
| Polyvinyl Chloride-Flexible | PVC-Flexible | 1.29 | Packaging, stationery etc. |
| Styrene Acrylonitrile | SAN | 1.08 | Thermal insulated jugs, jars, food packaging, Fitting for Refrigerator, Storage container etc. |
| Thermoplastic Elastomer (Urethane) | TPE | 0.97 | Automotive, Medical, Construction, electrical etc. |
| Rubber (Santoprene) | 1.08 | Toys, hair bend, gasket etc. | |
| Chlorinated Polyvinylchloride | CPVC | 1.44 | High strength Pipe |
| Ethylene Propylene Diene Rubber | EPDM | 1.08 | Rubber, gasket etc. |
| Polybutylene Terephalicate | PBT | 0.92 – 0.96 | Insulator in electrical application |
| Polymethyl methacrylate | PMMA | 1.18 | Transparent Glass, Door etc. |
| Polyterafluroethylene | PTFE | 2.20 | Containers, Pipe work, Aeroplane wings, Cookware etc. |
| Fiber Reinforced Plastic | FRP | 1.74 – 1.94 | Header pipe, Riser pipe, sheets, gratings etc. |
| Glass Reinforced Plastic | GRP | 1.90 – 1.95 | Header pipe, Riser pipe, sheets, gratings etc. |
Desity of Plastic
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