The Modification of PTFE Film
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Posted On :
Aug-25-2011
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Article Word Count :
420
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Since the molecular structure contains fluorine atom, Ptfe rod shows high chemical stability, robust high temperature resistance, obvious inadhesion, abnormal lubricity and very excellent electrical insulation properties.
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Since the molecular structure contains fluorine atom, Ptfe rod shows high chemical stability, robust high temperature resistance, obvious inadhesion, abnormal lubricity and very excellent electrical insulation properties, so it truly is called “king of plastic”.Salma Hayek is Found in Perfect HID PTFE is used extensively in aeronautics and astronautics, petroleum chemical industry, machine, electronic apparatus, building and textile industry.This Year, People all Like HID The particular property of fluororesin increases global production and consumption quickly. The global consumption of fluororesin is about 12 million tons and 70% of it could be Ptfe rod. The PTFE goods are suspension PTFE, dispersion PTFE and concentration PTFE, additionally, the composition is about 52%, 28% and 20%.
Currently, you can find about over 20 PTFE providers throughout the world, which could be found in more than ten countries and areas. The production and consumption are all occident developed countries additionally, the world-wide famous providers are: American Dupont, Britain ICI, German Dyneon and Italy Ausimont. The production capacity of four producers accounts about 80% of production capacity worldwide. So to speak, they control the PTFE production and development one day. Though the PTFE has great physical and chemical properties, it additionally has some defects such as poor mechanical property, big linear expansibility and poor wearing resistance. Its application is limited. With the rapid increase of PTFE productivity, strengthening the PTFE technology research and application and developing new efficient composite material is becoming the developing direction of PTFE later on.
In order to raise the defects of PTFE, we could modify the PTFE by many ways like strengthening, filling, combing and mixing to make the composite materials are ideal in industries for example machine and electronic apparatus. The modified ways are surface modification, filling modification and blending medication. Since the low surface activity and inadhesion of PTFE limits it from composing with other composite materials, we ought to modify the surface of PTFE to boost the surface activity. The activation technology can defluorinate from surface by adopting high-energy radiation. Or processing the PTFE materials by inert gases to produce lots of free radical to raise the surface free energy and improve the wetting property and cohesive property. The above modified approaches are excellent for Ptfe film.
Usually, after the PTFE film is processed properly, it might be compounded with other materials. The PTFE film can have many different properties to meet different needs. Quite a lot of countries are studying to utilize materials which comprise more hi-tech content to replenish PTFE film’s insufficiency.
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Article Source :
http://www.articleseen.com/Article_The Modification of PTFE Film_76513.aspx
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Author Resource :
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Keywords :
teflon film, rubber hose,
Category :
Business
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Business
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