
Plastic | Composition, History, Uses, Types, & Facts | Britannica
Nov 19, 2025 · plastic, polymeric material that has the capability of being molded or shaped, usually by the application of heat and pressure.
Plastic - Polymers, Synthetic, Recycling | Britannica
Nov 19, 2025 · Plastic - Polymers, Synthetic, Recycling: Polymers are chemical compounds whose molecules are very large, often resembling long chains made up of a seemingly …
Plastic pollution | Definition, Sources, Effects, Solutions, Ocean ...
Jan 9, 2026 · Plastics are persistent large-scale pollutants, and plastic debris (such as bottles, straws, containers, and plastic wrap) and particulates have been found in many environmental …
plastics summary | Britannica
Polyethylene (PE), light, versatile synthetic resin made from the polymerization of ethylene. Polyethylene is a member of the important family of polyolefin resins. It is the most widely …
Plastic - Injection Molding, Polymers, Manufacturing | Britannica
Nov 19, 2025 · Plastic - Injection Molding, Polymers, Manufacturing: It is usually slow and inefficient to mold thermoplastics using the compression molding techniques described above.
Plastic - Foaming, Manufacturing, Properties | Britannica
Nov 19, 2025 · Plastic - Foaming, Manufacturing, Properties: Foams, also called expanded plastics, possess inherent features that make them suitable for certain applications. For …
Plastic Definition & Meaning | Britannica Dictionary
PLASTIC meaning: 1 : a light, strong substance that can be made into different shapes and that is used for making many common products; 2 : a credit card when used for payment
Plastic - Biodegradable, Recyclable, Compostable | Britannica
Nov 19, 2025 · Plastic - Biodegradable, Recyclable, Compostable: None of the commodity plastics degrades rapidly in the environment. Nevertheless, some scientists and …
plastic pollution Facts | Britannica
Plastics are persistent large-scale pollutants, and plastic debris (such as bottles, straws, containers, and plastic wrap) and particulates have been found in many environmental niches, …
Plastic pollution - Marine Debris, Microplastics, Landfill | Britannica
Jan 9, 2026 · Plastic pollution was first noticed in the ocean by scientists carrying out plankton studies in the late 1960s and early 1970s, and oceans and beaches still receive most of the …