- Plastic | Composition, History, Uses, Types, Facts | Britannica
plastic, polymeric material that has the capability of being molded or shaped, usually by the application of heat and pressure
- Plastic pollution | Definition, Sources, Effects, Solutions, Ocean . . .
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, from Mount Everest to the bottom of the sea
- Plastic - Polymers, Synthetic, Recycling | Britannica
Plastic - Polymers, Synthetic, Recycling: Polymers are chemical compounds whose molecules are very large, often resembling long chains made up of a seemingly endless series of interconnected links
- plastics summary | Britannica
Traditional plastics are not biodegradable (see biodegradability); recycling of plastics, especially thermoplastics, has become an important industry, and the development of low-cost biodegradable plastics and plastic substitutes is a significant pursuit of industrial research
- Plastic - Foaming, Manufacturing, Properties | Britannica
Plastic - Foaming, Manufacturing, Properties: Foams, also called expanded plastics, possess inherent features that make them suitable for certain applications For instance, the thermal conductivity of a foam is lower than that of the solid polymer
- Plastic - Injection Molding, Polymers, Manufacturing | Britannica
The term polymer-matrix composite is applied to a number of plastic-based materials in which several phases are present It is often used to describe systems in which a continuous phase (the matrix) is polymeric and another phase (the reinforcement) has at least one long dimension
- Plastic - Recycling, Resource Recovery | Britannica
In most plastic recycling operations, the first step after sorting is to chop and grind the plastic into chips, which are easier to clean and handle in subsequent steps The chips commonly are first washed in order to remove nonplastic items such as labels, caps, and adhesives
- Plastic - Biodegradable, Recyclable, Compostable | Britannica
Plastic - Biodegradable, Recyclable, Compostable: None of the commodity plastics degrades rapidly in the environment Nevertheless, some scientists and environmentalists have seen biodegradable and photodegradable plastics as a solution to the problem of litter
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