Sunday, February 27, 2011

Teflon is for everyone!

Sick of sticky pots and pans? Sick of nail polish that chips off right away? Sick of stained carpeting? Teflon is for you!


Ever since it's accidental creation in 1938, Teflon has been used for a wide variety of things:
  • Coating valves and seals
  • Insulation of cables
  • Pots and pans, to provide a non-stick surface
It generates very low amount of friction, so it's perfect for things such as gears and slide plates, or parts in sliding doors, etc.

When used as a seal, this material is the best. It 'creeps', to better cover the seal for wear and tear. 

When using a Teflon coated pot or pan, cooking oil is not needed! Perfect for sliding food right off onto a plate, or for flipping food such as burgers, omelets etc.

But it doesn't stop there! In addition to industrial and kitchen products, Teflon is a common ingredient in beauty products. Nail polish uses Teflon for a chip-resistant color. Flat irons and hair curlers use Teflon to glide over hair and since it's resistant to high temperatures, it wont melt off. 

Not interested in any of that? Well, do you have a car? Do you often spill liquid on your carpets?
If you answered yes to either of those questions, then Teflon is for you! 

Teflon coating is used in some carpeting, allowing for easy run-off of spilled liquids and quick cleanup! Also, it is used in windshield wipers, so your view of the road is kept clear and unobstructed! It won't leave any nicks in you windshield and will glide over easily. 


Besides the aforementioned advantages to using Teflon, it is very heat resistant, cost-effective and Teflon products can be found in almost any store! Teflon is the perfect molecule, and it's perfect for you. Buy Teflon today!

The Forces Within

The bond between Fluorine and Carbon is Slightly Covalent. This is determined by use of an electro-negativity chart. Carbon has an electro-negativity of 2.5, while Fluorine has that of 4.0. The difference between these atoms is used to determine the bond. If the number is below 1.7, the bond is covalent. If it is above 1.7, the bond is ionic. Since the difference is 1.5, which is a number very close to 1.7, the bond is Slightly Covalent. The image below is a model of the C2F4 molecule. 


The blue represents Carbon
The green represents Fluorine 




hand-drawn and edited by Jessica Woodbine
This is a model of the molecule C2F4 (Teflon). It is a non-polar molecule, because the charges are distributed evenly and there is 2 or more lines of symmetry. The arrow shows that the electro-negativity of Carbon is less than that of Fluorine and is therefore more positive. The shape of this molecule is linear -- there is no central atom. Between the bonds is a 120 degree angle. 





In order to bond with another molecule, C2F4 would experience one or two kinds of forces. In the instance of bonding with H2O, C2F4 would experience London Dispersion Forces and Hydrogen bonding. 

London dispersion forces are the weak attraction that every molecule experiences. They occur when electrons in two adjacent molecules move into positions that make temporary or partial dipoles. 

Hydrogen bonding occurs when a Hydrogen comes into contact with an oxygen, nitrogen or fluorine. In this case, the hydrogen from the water molecule bonds to the fluorine in the Teflon molecule. 


About C2F4

Alternate names: Carbon fluorine, Dicarbon tetrafluorine
Molar mass100.0152 g/mol
Most commonly known as:Teflon
Common Uses: Non-stick surface in cooking ware
Properties at room temperature: White solid


Lewis structure for Teflon