here is my written information for the teflon polymer information that should be in my own words

Name: here is my written information for the teflon polymer information that should be in my own words and please the check the plagiarism as well rewrite of these information of teflon in your ow 07387
Uploaded: 2022-04-26T15:36:57-08:00
Duration: 12 min 58 s
Channel: Suman K
Description: here is my written information for the teflon polymer information that should be in my own words and please the check the plagiarism as well rewrite of these information of teflon in your ow 07387

Question

1- Teflon polymer is the product of addition polymerization, so it is an addition polymer. 2- Polytetrafluoroethylene was discovered by Roy Plunkett, an American chemist from New Carlisle, Ohio, in 1938. In an experiment to try and make a new CFC refrigerant, the tetrafluoroethylene polymerized with the container it was in to make a white waxy substance called polytetrafluoroethylene. It was later patented in 1941 and then commercially sold as Teflon in 1946. PTFE was initially expensive to produce, and its value was not clear to Plunkett or the other scientists at DuPont. However, it came into use in World War II during the development of the atomic bomb. Making the bomb required scientists to handle large amounts of the caustic and toxic substance uranium hexafluoride. DuPont provided PTFE-coated gaskets and liners that resisted the extreme corrosive action of uranium hexafluoride. DuPont also used PTFE during the war for making nose cones of certain other bombs. DuPont registered the trademark name Teflon for its patented substance in 1944 and continued to work after the war on cheaper and more effective manufacturing techniques. DuPont built its first plant for the production of Teflon in Parkersburg, West Virginia, in 1950. The company marketed Teflon after the war's end as a coating for machined metal parts. In the 1960s, DuPont began marketing cookware coated with Teflon. The slick Teflon coating resisted the stickiness of even scorched food, making cleaning the pans easy. The company also marketed Teflon for a variety of other uses. Other related fluoropolymers were developed and marketed in the ensuing decades, some of which were easier to process than PTFE. DuPont registered another variant of Teflon in 1985, Teflon AF, which is soluble in special solvents. 3 and 4 - PTFE can be produced in a number of ways, depending on the particular traits desired for the end product. Many specifics of the process are proprietary secrets of the manufacturers. There are two main methods of producing PTFE. One is suspension polymerization. In this method, the TFE is polymerized in water, resulting in grains of PTFE. The grains can be further processed into pellets which can be molded. In the dispersion method, the resulting PTFE is a milky paste which can be processed into a fine powder. Both the paste and powder are used in coating applications. Manufacturers of PTFE begin by synthesizing TFE. The three ingredients of TFE, fluorspar, hydrofluoric acid, and chloroform, are combined in a chemical reaction chamber heated to between 1094-1652°F (590-900°C). The resultant gas is then cooled and distilled to remove any impurities. PTFE is produced by free-radical polymerization of tetrafluoroethylene. 5- Teflon has other uses in other industries. In machinery, its slipperiness can be used where sliding is required, such as in coatings for gears and bearings. In the car industry, Teflon is the solution to the squeaky wiper blades that screech across your windshield when it rains. The blade is coated with Teflon, which creates less friction on the windshield and no noise! Teflon can protect fabric on furniture or carpets. Teflon repels liquids so that nasty spills on your carpet or sofa can be wiped up clean without leaving a stain. It is also used as an automotive lubricant and even protects light bulbs from shattering. Because Teflon is a very good electrical insulator, Teflon tape can be used to cover exposed or broken wires. Teflon tape is also often used to wrap around the threads of bolts to allow a better seal. It is also used as a nonstick coating on cooking devices like pans, ovens, and tawas as it is nonstick and has exceptional performance at high temperatures. 6- Teflon's amazing properties are due to its structure. Like most polymers, Teflon has a carbon-based chain. However, instead of reactive C-H bonds that occur in most polymers, Teflon has all its hydrogens replaced by fluorines. These strong C-F bonds are extremely resistant to attack by any other reagents, making Teflon very inert. This means that no other molecules will react with or stick to Teflon. The exception is Teflon itself, which will stick to itself quite readily, forming thick layers or solid blocks. With a friction coefficient of <0.1, Teflon has the second lowest friction coefficient (surpassed only by diamond-like carbon), which makes it perfect for non-stick items such as pans. DuPont invented the non-stick pan coated with Teflon in 1956 and has manufactured it ever since. Teflon coatings are so slippery that they are the only material that a gecko cannot stick to. Also, Teflon has a high melting point at 327°C, so it won't melt under the heat of cooking. Teflon is weather and UV resistant, and it has excellent optical properties too. 7- Van der Waals forces also include dipole-dipole interactions, but in PTFE, each molecule is sheathed in a layer of slightly negative fluorine atoms. The only interaction possible between molecules in this case is repulsions! It is no wonder that people claim that van der Waals forces are weak in PTFE.

1- Teflon polymer is the product of addition polymerization, so it is an addition polymer.

2- Polytetrafluoroethylene was discovered by Roy Plunkett, an American chemist from New Carlisle, Ohio, in 1938. In an experiment to try and make a new CFC refrigerant, the tetrafluoroethylene polymerized with the container it was in to make a white waxy substance called polytetrafluoroethylene. It was later patented in 1941 and then commercially sold as Teflon in 1946.

PTFE was initially expensive to produce, and its value was not clear to Plunkett or the other scientists at DuPont. However, it came into use in World War II during the development of the atomic bomb. Making the bomb required scientists to handle large amounts of the caustic and toxic substance uranium hexafluoride. DuPont provided PTFE-coated gaskets and liners that resisted the extreme corrosive action of uranium hexafluoride. DuPont also used PTFE during the war for making nose cones of certain other bombs.

DuPont registered the trademark name Teflon for its patented substance in 1944 and continued to work after the war on cheaper and more effective manufacturing techniques. DuPont built its first plant for the production of Teflon in Parkersburg, West Virginia, in 1950. The company marketed Teflon after the war's end as a coating for machined metal parts. In the 1960s, DuPont began marketing cookware coated with Teflon. The slick Teflon coating resisted the stickiness of even scorched food, making cleaning the pans easy. The company also marketed Teflon for a variety of other uses. Other related fluoropolymers were developed and marketed in the ensuing decades, some of which were easier to process than PTFE. DuPont registered another variant of Teflon in 1985, Teflon AF, which is soluble in special solvents.

3 and 4 - PTFE can be produced in a number of ways, depending on the particular traits desired for the end product. Many specifics of the process are proprietary secrets of the manufacturers. There are two main methods of producing PTFE. One is suspension polymerization. In this method, the TFE is polymerized in water, resulting in grains of PTFE. The grains can be further processed into pellets which can be molded. In the dispersion method, the resulting PTFE is a milky paste which can be processed into a fine powder. Both the paste and powder are used in coating applications.

Manufacturers of PTFE begin by synthesizing TFE. The three ingredients of TFE, fluorspar, hydrofluoric acid, and chloroform, are combined in a chemical reaction chamber heated to between 1094-1652°F (590-900°C). The resultant gas is then cooled and distilled to remove any impurities.

PTFE is produced by free-radical polymerization of tetrafluoroethylene.

5- Teflon has other uses in other industries. In machinery, its slipperiness can be used where sliding is required, such as in coatings for gears and bearings. In the car industry, Teflon is the solution to the squeaky wiper blades that screech across your windshield when it rains. The blade is coated with Teflon, which creates less friction on the windshield and no noise! Teflon can protect fabric on furniture or carpets. Teflon repels liquids so that nasty spills on your carpet or sofa can be wiped up clean without leaving a stain. It is also used as an automotive lubricant and even protects light bulbs from shattering. Because Teflon is a very good electrical insulator, Teflon tape can be used to cover exposed or broken wires. Teflon tape is also often used to wrap around the threads of bolts to allow a better seal. It is also used as a nonstick coating on cooking devices like pans, ovens, and tawas as it is nonstick and has exceptional performance at high temperatures.

6- Teflon's amazing properties are due to its structure. Like most polymers, Teflon has a carbon-based chain. However, instead of reactive C-H bonds that occur in most polymers, Teflon has all its hydrogens replaced by fluorines. These strong C-F bonds are extremely resistant to attack by any other reagents, making Teflon very inert. This means that no other molecules will react with or stick to Teflon. The exception is Teflon itself, which will stick to itself quite readily, forming thick layers or solid blocks. With a friction coefficient of <0.1, Teflon has the second lowest friction coefficient (surpassed only by diamond-like carbon), which makes it perfect for non-stick items such as pans. DuPont invented the non-stick pan coated with Teflon in 1956 and has manufactured it ever since. Teflon coatings are so slippery that they are the only material that a gecko cannot stick to. Also, Teflon has a high melting point at 327°C, so it won't melt under the heat of cooking. Teflon is weather and UV resistant, and it has excellent optical properties too.

7- Van der Waals forces also include dipole-dipole interactions, but in PTFE, each molecule is sheathed in a layer of slightly negative fluorine atoms. The only interaction possible between molecules in this case is repulsions! It is no wonder that people claim that van der Waals forces are weak in PTFE.

Added by Ebony M.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert Suman K

04/26/2022

Step 1

Step 1: Teflon polymer, also known as polytetrafluoroethylene (PTFE), is a type of plastic coating that is applied to various items to create a nonstick, waterproof, non-corrosive, or non-reactive surface. Show more…

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1- Teflon polymer is the product of addition polymerization, so it is an addition polymer. 2- Polytetrafluoroethylene was discovered by Roy Plunkett, an American chemist from New Carlisle, Ohio, in 1938. In an experiment to try and make a new CFC refrigerant, the tetrafluoroethylene polymerized with the container it was in to make a white waxy substance called polytetrafluoroethylene. It was later patented in 1941 and then commercially sold as Teflon in 1946. PTFE was initially expensive to produce, and its value was not clear to Plunkett or the other scientists at DuPont. However, it came into use in World War II during the development of the atomic bomb. Making the bomb required scientists to handle large amounts of the caustic and toxic substance uranium hexafluoride. DuPont provided PTFE-coated gaskets and liners that resisted the extreme corrosive action of uranium hexafluoride. DuPont also used PTFE during the war for making nose cones of certain other bombs. DuPont registered the trademark name Teflon for its patented substance in 1944 and continued to work after the war on cheaper and more effective manufacturing techniques. DuPont built its first plant for the production of Teflon in Parkersburg, West Virginia, in 1950. The company marketed Teflon after the war's end as a coating for machined metal parts. In the 1960s, DuPont began marketing cookware coated with Teflon. The slick Teflon coating resisted the stickiness of even scorched food, making cleaning the pans easy. The company also marketed Teflon for a variety of other uses. Other related fluoropolymers were developed and marketed in the ensuing decades, some of which were easier to process than PTFE. DuPont registered another variant of Teflon in 1985, Teflon AF, which is soluble in special solvents. 3 and 4 - PTFE can be produced in a number of ways, depending on the particular traits desired for the end product. Many specifics of the process are proprietary secrets of the manufacturers. There are two main methods of producing PTFE. One is suspension polymerization. In this method, the TFE is polymerized in water, resulting in grains of PTFE. The grains can be further processed into pellets which can be molded. In the dispersion method, the resulting PTFE is a milky paste which can be processed into a fine powder. Both the paste and powder are used in coating applications. Manufacturers of PTFE begin by synthesizing TFE. The three ingredients of TFE, fluorspar, hydrofluoric acid, and chloroform, are combined in a chemical reaction chamber heated to between 1094-1652°F (590-900°C). The resultant gas is then cooled and distilled to remove any impurities. PTFE is produced by free-radical polymerization of tetrafluoroethylene. 5- Teflon has other uses in other industries. In machinery, its slipperiness can be used where sliding is required, such as in coatings for gears and bearings. In the car industry, Teflon is the solution to the squeaky wiper blades that screech across your windshield when it rains. The blade is coated with Teflon, which creates less friction on the windshield and no noise! Teflon can protect fabric on furniture or carpets. Teflon repels liquids so that nasty spills on your carpet or sofa can be wiped up clean without leaving a stain. It is also used as an automotive lubricant and even protects light bulbs from shattering. Because Teflon is a very good electrical insulator, Teflon tape can be used to cover exposed or broken wires. Teflon tape is also often used to wrap around the threads of bolts to allow a better seal. It is also used as a nonstick coating on cooking devices like pans, ovens, and tawas as it is nonstick and has exceptional performance at high temperatures. 6- Teflon's amazing properties are due to its structure. Like most polymers, Teflon has a carbon-based chain. However, instead of reactive C-H bonds that occur in most polymers, Teflon has all its hydrogens replaced by fluorines. These strong C-F bonds are extremely resistant to attack by any other reagents, making Teflon very inert. This means that no other molecules will react with or stick to Teflon. The exception is Teflon itself, which will stick to itself quite readily, forming thick layers or solid blocks. With a friction coefficient of <0.1, Teflon has the second lowest friction coefficient (surpassed only by diamond-like carbon), which makes it perfect for non-stick items such as pans. DuPont invented the non-stick pan coated with Teflon in 1956 and has manufactured it ever since. Teflon coatings are so slippery that they are the only material that a gecko cannot stick to. Also, Teflon has a high melting point at 327°C, so it won't melt under the heat of cooking. Teflon is weather and UV resistant, and it has excellent optical properties too. 7- Van der Waals forces also include dipole-dipole interactions, but in PTFE, each molecule is sheathed in a layer of slightly negative fluorine atoms. The only interaction possible between molecules in this case is repulsions! It is no wonder that people claim that van der Waals forces are weak in PTFE.