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Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene. Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly ...
- (C₃H₆)ₙ
- 0.855 g/cm³, amorphous, 0.946 g/cm³, crystalline
- None
- 130 to 171 °C (266 to 340 °F; 403 to 444 K)
Polyethylene terephthalate (or poly (ethylene terephthalate), PET, PETE, or the obsolete PETP or PET-P ), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, and thermoforming for manufacturing, and in combination with glass fibre for engineering resins. [5]
- (C₁₀H₈O₄)ₙ
- 10–50 kg/mol, varies
- > 250 °C (482 °F; 523 K) 260 °C
- Practically insoluble
Plastic. Household items made of various types of plastics. Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be molded, extruded or pressed into solid objects of various shapes. This adaptability, plus a wide range of other properties ...
South Asia is the southern subregion of Asia, which is defined in both geographical and ethnic-cultural terms. As commonly conceptualized, the modern states of South Asia include Afghanistan,[6] Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka.[7] South Asia borders East Asia to the northeast, Central Asia to the northwest ...
- 5,134,641 km² (1,982,496 sq mi)
- Zone 8 & 9
- 1.94 billion (2022)
Casualties. 227,898 dead [5] [6] On 26 December 2004, at 07:58:53 local time ( UTC+7 ), a major earthquake with a magnitude of 9.2–9.3 Mw struck with an epicentre off the west coast of northern Sumatra, Indonesia. The undersea megathrust earthquake, known by the scientific community as the Sumatra–Andaman earthquake, [8] [9] was caused by a ...
Information CERCLIS ID NYD000606947 Contaminants Various chemicals Responsible parties Hooker Chemical Company Progress Proposed December 30, 1983 Love Canal is a neighborhood in Niagara Falls, New York, United States, infamous as the location of a 0.28 km 2 (0.11 sq mi) landfill that became the site of an environmental disaster discovered in 1977.
A small current at the base terminal, flowing between the base and the emitter, can control or switch a much larger current between the collector and emitter. A field-effect transistor (FET) has terminals labeled gate, source and drain. A voltage at the gate can control a current between source and drain.
