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North Carolina is a state in the southeastern region of the United States. The state borders South Carolina and Georgia to the south, Tennessee to the west, Virginia to the north, and the Atlantic Ocean to the east. North Carolina is the 28th most extensive and the 9th most populous of the U.S. states. The state is divided into 100 counties. The capital is Raleigh, which along with Durham is home to the largest research park in the United States . The most populous municipality is Charlotte, which is the third largest banking center in the United States after New York City and San Francisco.
South Carolina is a state in the southeastern region of the United States. The state is bordered to the north by North Carolina, to the south and west by Georgia, across the Savannah River, and to the east by the Atlantic Ocean.
South Carolina became the eighth state to ratify the U.S. Constitution, on May 23, 1788. South Carolina became the first state which voted to secede from the Union on December 20, 1860. After the American Civil War, it was readmitted into the United States on June 25, 1868.
South Carolina is the 40th most extensive and 23rd most populous U.S. state. Its GDP as of 2013 was $183.6 billion, with an annual growth rate of 3.13%. South Carolina is composed of 46 counties. The capital is Columbia with a 2016 population of 134,309; while its largest city is Charleston with a 2016 population of 134,385. The Greenville-Anderson-Mauldin metropolitan area is the largest in the state, with a 2016 population estimate of 884,975.
PTFE membrane is a thin, highly porous film that behaves as an absolute retentive membrane. Their inherently hydrophobic nature make PTFE membranes ideal for applications such as filtering gases, aqueous aerosols, protecting vacuum pumps, or sterile venting fermentation tanks. PTFE is inert to most chemically aggressive solvents, strong acids and bases and can be used for solvent clarification and HPLC sample prep.
PTFE membranes are available unsupported and supported. PTFE membranes with a laminated polypropylene web support to one side offers improved handling characteristics. Chemical and thermal limitations are imposed by the backing.
PTFE and TFM are used for bellows in extreme corrosion resistance applications – specifically organic compounds, acids, and salts – as well as high temperature and high purity applications. They both exhibit non-stick behavior, and have a similar wide range of usage temperatures. However, there are significant differences between them, namely because TFM combines the best characteristics of both PTFE and PFA. TFM is the bellows material of choice when you need extremely low gas permeation, a longer fatigue life, and a smoother surface finish.