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Plastics are made by a chemical process called polymerization. There are several different types of polymerization: Condensation polymerization is a reaction where two molecules join into one larger one, releasing a (generally small) molecule in the process. Examples of condensation polymers are Nylon-6,6 (a polyamide) and PET (a polyester). Addition polymerization is where two molecules join to form one larger one without losing any atoms in the process. Examples of addition polymers are Nylon-6 (also a polyamide, but produced using a ring-opening process rather than a condensation process) and polystyrene (a polyolefin, generally produced using a free-radical propagation mechanism).
Common thermoplastics range from 20,000 to 500,000 in molecular mass, while thermosets are assumed to have infinite molecular weight. These chains are made up of many repeating molecular units, known as "repeat units", derived from "monomers"; each polymer chain will have several thousand repeat units. The vast majority of plastics are composed of polymers of carbon and hydrogen alone or with oxygen, nitrogen, chlorine or sulfur in the backbone. (Some of commercial interest are silicon based.) The backbone is that part of the chain on the main "path" linking a large number of repeat units together. To vary the properties of plastics, both the repeat unit with different molecular groups "hanging" or "pendant" from the backbone, (usually they are "hung" as part of the monomers before linking monomers together to form the polymer chain). This customization by repeat units molecular structure has allowed plastics to become such an indispensable part of twenty first-century life by fine tuning the properties of the polymer.
Some plastics are partially crystalline and partially amorphous in molecular structure, giving them both a melting point (the temperature at which the attractive intermolecular forces are overcome) and one or more glass transitions (temperatures above which the extent of localized molecular flexibility is substantially increased). So-called semi-crystalline plastics include polyethylene, polypropylene, poly (vinyl chloride), polyamides (nylons), polyesters and some polyurethanes. Many plastics are completely amorphous, such as polystyrene and its copolymers, poly (methyl methacrylate), and all thermosets.
A few biodegradable plastics have been made specifically to solve the issues of disposal. Some examples are: cornstarch polymers, cellulose acetate, celluloid, and polyvinyl alcohol. These will probably see more use in the future, as long as the degradation does not interfere with the intended purpose or create safety hazards.
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Is plastic made out of rocks or is plastic made out of minerals?
no, plastic is made out of oils usually petroleum.
Polymer which can be processed in both fibre or plastic material is?
Nylon, polyethylene, teflon, etc. Almost any of them.
Is it true that velveeta processed cheese product is one molecule away from being plastic?
No, it is not correct that Velveeta is one molecule away from being plastic. Velveeta is a type of processed cheese product that contains dairy ingredients and emulsifiers to give it its unique texture and taste. Plastic, on the other hand, is made from synthetic polymers that are chemically distinct from the ingredients in Velveeta.
What is done to the plastic material in the plastic factory?
In a plastic factory, raw plastic material is processed and shaped through heating, molding, extrusion, or injection molding techniques. Additives such as colorants, stabilizers, and fillers may be mixed in to enhance the material's properties. Finally, the plastic is cooled and trimmed into the desired shape or form.
How is plastic differance when its recycled?
When plastic is recycled, it is processed and transformed into new products or materials instead of being discarded. This allows for the conservation of resources, reduction in waste, and decreased environmental impact compared to virgin plastic production. Recycled plastic also helps to reduce energy consumption and greenhouse gas emissions associated with plastic manufacturing.
How are the raw materials of a xbox 360 controller processed?
plastic
What is holly body doing these days?
she is at a plastic recycling facility in southern California being processed.
Where does modern plastic come from?
Modern plastic is derived from petrochemicals, which are obtained from fossil fuels such as crude oil and natural gas. These raw materials are chemically processed to create various types of plastics, which are then molded or shaped into different products.
Is plastic made out of rocks or is plastic made out of minerals?
no, plastic is made out of oils usually petroleum.
Polymer which can be processed in both fibre or plastic material is?
Nylon, polyethylene, teflon, etc. Almost any of them.
What happens to plastic when it is picked up?
Not all types of plastic are suitable for recycling. In the UK, recyclable plastics are supposed to be processed and used to make various items again.
Is it true that velveeta processed cheese product is one molecule away from being plastic?
No, it is not correct that Velveeta is one molecule away from being plastic. Velveeta is a type of processed cheese product that contains dairy ingredients and emulsifiers to give it its unique texture and taste. Plastic, on the other hand, is made from synthetic polymers that are chemically distinct from the ingredients in Velveeta.
What is done to the plastic material in the plastic factory?
In a plastic factory, raw plastic material is processed and shaped through heating, molding, extrusion, or injection molding techniques. Additives such as colorants, stabilizers, and fillers may be mixed in to enhance the material's properties. Finally, the plastic is cooled and trimmed into the desired shape or form.
How is plastic differance when its recycled?
When plastic is recycled, it is processed and transformed into new products or materials instead of being discarded. This allows for the conservation of resources, reduction in waste, and decreased environmental impact compared to virgin plastic production. Recycled plastic also helps to reduce energy consumption and greenhouse gas emissions associated with plastic manufacturing.
Materials that have been processed in some way?
Processed materials are substances that have been altered from their original state through various manufacturing or refining methods. Examples include plastic, glass, metal alloys, and processed foods. These materials undergo transformation to enhance their properties or make them suitable for specific applications.
How are plastic containers processed for recycling and where do they go?
There are a variety of uses for recycled plastics. Plastic containers are sorted by type (see the number on the bottom of the container) then compacted and shredded. They are then prepared for the destination use, depending on the requirements.
Are cheese strings really made out of plastic?
No, cheese strings are made from real dairy products like milk, which are processed to form the stringy texture. The misconception that they are made of plastic likely stems from their unique texture and appearance.
