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Adsorption onto fluoropolymers
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B40 Adsorption onto fluoropolymers Dietich
Prescher
Zentrum fiir Makwmolekulare
Chemie
Andre Hauser Zen&urn j?ir Selektive
Organ&he
Synthese
and Lothar Richter Max-Planck-Institut fiir Kolloid- und Grenz~iicheqfbrschung, O-1199 Berlin-Adlershof (Germany)
Rudower
Chuussee 5,
The use of poly(tetrafluoroethylene) is sometimes accompanied by difficulties: for example, the cleaning of scientific devices made from PTFE occasionally results in surface impurities, depending on the type of cleaner. These impurities can change the surface properties of the PTFE. Industrial application of PTFE material can be disturbed by adsorption layers formed during its use. Such surface phenomena are due to an attack of some chemicals on the highly resistant PTFE. Therefore we were interested to study the influence of different organic and inorganic acids on the surfaces of fluoropolymers (PTFE, FEP). The observed adsorption was investigated as a function of the reaction conditions, such as pressure, temperature and concentration. The results of infrared and contact angle measurements will be presented.
B40 Adsorption onto fluoropolymers Dietich
Prescher
Zentrum fiir Makwmolekulare
Chemie
Andre Hauser Zen&urn j?ir Selektive
Organ&he
Synthese
and Lothar Richter Max-Planck-Institut fiir Kolloid- und Grenz~iicheqfbrschung, O-1199 Berlin-Adlershof (Germany)
Rudower
Chuussee 5,
The use of poly(tetrafluoroethylene) is sometimes accompanied by difficulties: for example, the cleaning of scientific devices made from PTFE occasionally results in surface impurities, depending on the type of cleaner. These impurities can change the surface properties of the PTFE. Industrial application of PTFE material can be disturbed by adsorption layers formed during its use. Such surface phenomena are due to an attack of some chemicals on the highly resistant PTFE. Therefore we were interested to study the influence of different organic and inorganic acids on the surfaces of fluoropolymers (PTFE, FEP). The observed adsorption was investigated as a function of the reaction conditions, such as pressure, temperature and concentration. The results of infrared and contact angle measurements will be presented.