User's Manual

RFID System
User's Manual
131
Section 6 Chemical Resistance of Tags
Section 6
Appendices
Applicable Model
PFA is used for the V680-D1KP66T-SP ID Tag coating.
Refer to the following materials and check the characteristics before using them.
 Chemical Resistance of PFA Fluororesin (Reference Material)
PFA: Tetrafluorethylene-Perfluoroalkylvinyletheir copolymer
PFA fluororesin is non-reactive to most chemicals.
It reacts to alkaline metals in the melted state, F2 (fluorine) under high temperature and high pressure,
and some halogen derivatives.
The results testing by immersing the PFA material in commonly used organic and inorganic chemicals
are shown below. This testing involves placing a compression molded test piece (1.3 mm thickness) in
the chemicals at room temperature for one week (168 hours), then removing it to measure the change
in weight, tensile strength, and stretch. If the change in tensile strength is less than 15%, elasticity is
less than 10%, and weight is less than 0.5%, the effect is considered minimal.
When fluids that wet the resin surface, such as trichloroacetic acid, Tri-n-butylamine hydrofluoride,
perchloroethylene, and carbon tetrachloride, are applied at high temperatures, it is likely that the PFA
will increase weight by absorption and lose its tensile strength. Even if chemicals that are solvents are
absorbed, the molecular structure will not change. If the PFA is subject to deformation at high
temperatures, deformation at high pressures, or other physical damage, the absorbed chemicals will
repeatedly expand and contract within the PFA, causing physical defects such as cracks or blistering.
However, these are problems that are likely to occur with any type of plastic.
 Inorganic Chemicals
V680-D1KP66T-SP
Chemical
Test temperature
(°C)
Residual characteristic (%)
Weight gain (%)
Tensile strength Stretch
Concentrated hydrochloric acid 120 98 100 0.0
Concentrated sulfuric acid 120 95 98 0.0
Hydrofluoric acid (60%RT) 23 99 99 0.0
Fuming sulfuric acid 23 95 96 0.0
Aqua regia 120 99 100 0.0
Chromic acid (50% RT) 120 93 97 0.0
Concentrated nitric acid 120 95 98 0.0
Fuming nitric acid 23 99 99 0.0
66 98 100 100 0.0
Caustic soda (50% RT) 120 93 99 0.4
Hydrogen peroxide solution (30% RT) 23 93 95 0.0
Bromine 23 99 100 0.0
Chlorine 120 92 100 0.5
Ferrous chloride (25% RT) 100 93 98 0.0
Zinc chloride (25% RT) 100 96 100 0.0
Sulfuryl chloride 69 83 100 2.7
Chlorosulfonic acid 151 91 100 0.0
Concentrated phosphoric acid 100 93 100 0.0