Harwood AP CHEM Project

The fluorine atoms shield the carbon atoms from reacting.

fluorine atoms also play a role in giving PTFE a low coefficient of friction. The coefficient of friction is a measurement of how easy it is for two substances to slide by each other -- the harder it is to slide, the higher the coefficient of friction

looks

Bioglass® is a clear bioactive material made of calcium, phosphorous, silicon, and sodium salts. It is a type of artificially made glass classified as a bioceramic. It chemically reacts with body fluids to form a bond at the surfaces of tissues and bones. The elements that make up Bioglass® are needed to repair and grow tissues and bones.

There is no risk of disease or rejection since Bioglass® is made completely of elements found in the human body.

In 1987, a group of experts defined the word biomaterial as “a non-viable material used in a medical device, intended to interact with biological systems” (Europeon Society of Biomaterials Conference, 1987). This definition reflected the state of the field at the time, which was focused on developing materials and coatings to prevent the rejection of implantable medical device

two relat­ed technologies -- silicon ceramics and silicone

Thermolon

NP² nonstick technology

potential safety concerns for both pet birds and humans [source: Houlihan and White]. The petition cited multiple cases of bird deaths due to fumes from PTFE nonstick coatings along with two specific incidents of polymer fume fever -- temporary flulike symptoms -- in humans

allows restaurants to serve food much more quickly, as when plates are cleared from a table, they can be washed while other plates are being used to serve food

Cooking Speed

Preserving Food

it's a component in space suits, and it insulates high-voltage wires

Although synthetic polymers are widely used in medicine, in direct contact with blood, these polymers are still prone to initiate the formation of clots due to activation of platelets and other components of the blood coagulation system ([Aiping and Tian 2006]). It is well known that interactions between the surface of an artificial biomaterial and biological environment are the key factor to determine the biocompatibility