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facts about plastics that you should know - polyethylene terephthalate

by:Cailong     2019-07-27
facts about plastics that you should know  -  polyethylene terephthalate
The word plastic is derived from the Greek word Plastikos, meaning molding or form.
Plastic was originally developed as a replacement for ivory in the 1860 s.
Since then, plastics have become an important part of all manufacturing industries.
The manufacturing industry uses plastics in many application areas because it is easy to bend and mold into different shapes.
Plastic is a petrochemical product made from fossil fuels such as coal, crude oil and natural gas.
What is plastic?
Plastic is made of long chains of polymer.
The polymer consists of a single repetitive monomer.
The monomer is combined in different ways to produce different types of plastic.
To get a clear understanding of plastics, it is important to know the following terms --Monomer -
The monomer is the basic unit of a chemical that can be combined in different ways to form more complex substances.
The word Mono refers to one. Polymers -
The polymer is connected together in different ways to form long chains of complex substances.
Poly means a lot. Hydrocarbons -
Hydrocarbons are organic compounds contained in crude oil and natural gas.
They consist only of carbon and hydrogen atoms. What is plastic?
Plastic is a material made of long chain polymers. (
The polymer is a repetitive unit of the monomer. )
In the process of making plastic, the monomer is combined in different ways to produce different types of plastic.
Polymers in plastics are made up of long chains of hydrocarbon molecules.
The carbon atoms present in hydrocarbon molecules bind together to form a framework for hydrocarbon molecules, and the hydrogen atom acts as a link to other carbon atoms to form a continuous chain.
The chain of hydrocarbon molecules can be single-chain or branch in different directions to form more complex chains.
Polyethylene is an example of thermoplastic plastic used in most industrial and commercial applications.
Thermoplastic is a plastic that can melt into liquid and reshape when it cools into a solid.
Below is an example of polyethylene plastic.
Thermoplastic is a polymer that can be melted and cast into different shapes.
They can be melted and re-cast several times without losing most of their original properties. ABS)
It is a thermoplastic plastic used in the manufacture of sports equipment, Lego blocks and auto parts.
Polycarbonate is a thermoplastic plastic used in the manufacture of CDs, beverage bottles, food storage containers, glasses lenses, etc.
Polyethylene is another kind of thermoplastic plastic used to make shampoo bottles, plastic shopping bags and body armor.
Recyclable and reusable thermoplastic plastic.
Sesetsthermoset is also called hot solid plastic.
Thye is a synthetic material that can form three-
Size network when chemical processing.
The first kind of hot-solid plastic called rubber wood is made of Dr.
Leo Baekeland, 1909
The advantage of thermosolid plastics is that they maintain their shape and properties at high temperatures.
The shape and original performance can be maintained even at high temperatures, which makes the hot sleeve an ideal choice for making something sturdy and durable.
Hot sleeve for electronic chip, optical fiber manufacturing
Polymer coating reinforced composite material.
No heat jacket can be recovered, reshaped or reshaped.
Waldo Semon started commercial use of PVC for the first time in the 1920 s, while trying to create a synthetic alternative for natural rubber.
PVC plastic is a thermoplastic plastic made of 57% chlorine and 43% carbon.
Production of PVCs is less dependent on fossil fuels because the chlorine used to make PVC comes from industrial grade salt and carbon comes from oil or natural gas.
PVC plastic is durable, lightweight, sturdy, refractory, low permeability and high insulation.
PVCs are used in the manufacture of building materials such as windows and door frames, floor and wall coverings, roof panels, tunnel linings, swimming pools and reservoirs.
PVC is also used below-
Pipes for water and sewage transportation and accessories and pipes for electricity and telecom.
Coating of tarps, raincoats and corrugated metal plates.
Insulation and jacket for low voltage power supply, telecom, electrical and automotive applications.
Packaging of medicines, food and sweets, water and juice, labels and display trays.
Manufacture of blood bags, blood vessels, surgical gloves and other medical products.
Manufacture of garden hoses, footwear, inflatable swimming pools and tents.
Waldo Semon started commercial use of PVC for the first time in the 1920 s, while trying to create a synthetic alternative for natural rubber.
PVC plastic is a thermoplastic plastic made of 57% chlorine and 43% carbon.
Production of PVCs is less dependent on fossil fuels because the chlorine used to make PVC comes from industrial grade salt and carbon comes from oil or natural gas.
Polyurethane was discovered by Dr. in 1930. Otto Bayer.
Polyurethane is a durable, flexible and elastic material made of petrochemical products. Dr.
Otto Bayer is known as the father of polyurethane industry.
Polyurethane is manufactured by combining two kinds of monomer-diammonium with diol or polyols by chemical reaction.
Polyurethane can be liquid, foam or solid depending on the monomer used to produce polyurethane.
Polyurethane has a high degree of flexibility, wear resistance and high impact, can withstand wear, water resistance, oil and grease.
It has a strong elasticity and is a good conductor of electricity.
Polyurethane is well combined with plastic, metal and wood.
Although polyurethane is made from fossil fuels, it helps to protect the natural resources of the Earth --
Coated products with polyurethane can extend the service life of the products, thus reducing the need for frequent production of new products. Polyurethane helps in insulated buildings.
Thermal insulation with polyurethane helps to reduce gas consumption, and the use of tin refrigerator oil and electric polyurethane foam helps to preserve food for a longer period of time. Polyurethane can be chemically recovered by breaking them down into monomer and making new polyurethane or by using polyurethane in polymer form.
It also helps to recover other materials such as rubber and wood.
Polyurethane is made from petrochemical products and should be recycled in order to save valuable resources and energy.
Polyethylene pet is short for pet.
PET plastics were originally synthesized by DuPont chemists in the study of new textile fibers, but the actual technology for manufacturing these textiles was developed by the Imperial chemical industry.
PET plastic is durable, can withstand high pressure, does not burst when falling.
It has good barrier properties and helps to preserve the carbonated acid in an inflatable drink.
Pet products can be recycled.
PET plastic for the manufacture of the following products-
Bottles of beverages, such as soft drinks, juice, mineral water, carbonated beverage bottles for cooking and salad oil, sauces, and wide mouth bottles and barrels of fruit and dry food decorated for jam, jam
Cooked food and other pet products that can be re-heated are made from crude oil derivatives and must be recycled to save earth resources.
Bio plastic
Based on biodegradable or both.
The term bio-plastics refers to plastics that meet one or both of the following two conditions-
Biological plastics must be partly renewable (plant-based)
Resource bio-plastics can be degraded into water and carbon dioxide through natural microorganisms present in the environment.
In this process, some biomass is manufactured and the traditional plastic does not meet any of the above conditions.
Example of lactic acid as a biological plasticizer (PLA)
Juji base (PLC)
, Polyester Amine, polytinone-covalerate (PHBV)
Made from plants such as rapeseed, soybeans, corn and potatoes.
Bio-plastics can also be made from waste from the food industry.
The production of plastics using renewable resources can help save fossil fuels and reduce greenhouse gas carbon dioxide emissions.
There are two different types of plastic. bio-
Plastic and biodegradable plastic. Bio-
Based on plastic biology
Some products based on biomass.
The first creature
The plastic is polyhydrogen acetate (PBH)
On 1926, French researcher Maurice lemonne discovered it.
Morriss lemonig found the creature.
When working with giant bacteria, it is based on plastic.
At first, his findings were not recognized by the world, but with the recent fossil fuel crisis, bio-
Plastic base has become an important topic for further research. Bio-
Plastic is widely used in the packaging industry.
Examples of branches and biological communities such as leaves, stumps, branches and leaves, wood chips cut from the yard.
Industrial biomass is obtained from plants such as Mang, switch grass, hemp, corn, sugar cane, bamboo and trees such as eucalyptus and palm.
Biodegradable plastic
Microorganisms such as bacteria and fungi present in the environment can decompose friendly plastics.
According to the Institute of biodegradable plastics, biodegradable materials are a material that is decomposed by microorganisms in the environment under appropriate conditions and used as a source of food.
Biodegradable plastics are not necessarily bio-plastics made from fossil fuels, adding chemical additives in the process of making plastic, thus making plastic biodegradable and ecologicalfriendly.
Biodegradable products can have non-
It is not naturally decomposed or has biodegradable components that can be recycled through a roadside recycling plan.
Biodegradable plastics should not be thrown into the environment because they take a long time to break down in landfill due to lack of oxygen, humidity and low temperature.
Biodegradable plastics should be recycled through roadside recycling procedures.
The recycling plan brings the collected biodegradable plastics to a huge composting facility, which breaks down in a short period of time in a controlled environment.
Biodegradable plastics are used in food packaging, and when it is produced through the expiry date of the agricultural plastic film, it can be composted with its contents, which can be plowed into biodegradable coverings and
Micro-absorbent stitching
A device containing drugs broken down in a body disposable plate, spoon, CUP, fork plastic is a 100% biodegradable material made of cellulose from plants and trees.
In 1920, French scientists made glass paper for the first time.
Plastic and environmental plastics have become part of our daily life.
We use many items made of different types of plastic without being fully aware of their environmental impact.
Although plastic has many uses, they have become a threat to the environment.
The best solution is to reduce the use of plastic.
Instead of recycling them, it's better to avoid using plastic items or reuse the items we already have.
Reference materials http://quatr .
US/chemical/plastic/ http://www .
Explain it. com/plastics. htmlhttp://www. chemheritage.
Resource/conflictin-chemistry/the-case-of-plastics/all-science-of-plastics. aspxhttp://www. innovateus.
Single unit http://www . futurenergia.
Bar/future energy/chat/Bio _ plastic. htmhttp://www. plasticseurope. org/what-is-plastic/types-of-plastics-
11148/hot sleeve. aspxhttp://en. european-bioplastics. org/wp-
Content/upload/2011/04/fs/bio-plastic _ eng.
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