Main Sector of relevance\IRC classification 5. Electronics, IT and Telecommunication
5.35 Chemical activation of fluoroplastics and creating of composite structures for machine-building and chemical industry on the basis thereof
Developers’ contact information
SSPA “The Scientific and Practical Materials Research Center of the National Academy of Sciences of Belarus”
19/1/225, P. Brovka Str., 220072 Minsk
Summary
Electrochemical and chemical technologies for activating
fluoroplastic surface were proposed. As a result of such activation the surface
fluor atoms are substituted by active chemical groups – acetylide, carboxylic
amide, etc. Owing to activity and polarity of these groups, the surface
acquires adhesion and affinity to materials. Activation can be realized
according to the set pattern with resolution of about 20-50 μm.
The activated fluoroplastics in the form of powders or films are used for
creating composite materials and structures for friction bearings, devices that
are operated in corrosive liquids and high-frequency radiotechnics.
Description
Fluoroplastic has a number of unique properties: anomalously low
friction coefficient, chemical inertness to intense oxidizers, wide temperature
range of applicability (from +300 °C to -273 °C), high electrotechnical
characteristics in microwave range. At the same time, due to its inertness,
fluoroplastic is almost never compacted, and almost never interfaces or
agglutinates with other materials. This circumstance hampers creating of
fluoroplastic-based composite materials, structures and constructions having
fluoroplastic interfitting with metals, plastic, ceramics.
Electrochemical and chemical technologies for activating fluoroplastic surface
were proposed. As a result of such activation the surface fluor atoms are
substituted by active chemical groups – acetylide, carboxylic amide, etc.
Owing to activity and polarity of these groups, the surface acquires adhesion
and affinity to materials. Activation can be realized according to the set
pattern with resolution of about 20-50 μm.
The activated fluoroplastics in the form of powders or films are used for
creating multipurpose composite materials and structures for the following
branches of engineering: machine-building industry (for friction bearings
manufacturing), chemical industry (in devices operated under extreme ambient
conditions – e.g. in electric heaters for corrosive liquids), high-frequency
radiotechnics, etc.
Technology type
Technical advantages and economic benefits
Allows creating qualitatively new materials and devices with an advanced spectrum of properties.
Technology differentiation and uniqueness
Powder Metallurgy Institute (National Academy of Sciences of Belarus), “HM Group” (Russia), the new models have been tested.
Context in which technology was identified
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Technological keywords
Fluoroplastic, activation, composite structures, frictionproof materials, microwave devices.
Development Stage
Intellectual property rights
Range of applications
Machine-building, chemical industry, high-frequency radiotechnics, consumer appliances.
Classifier Used at the EU Innovation Relay Centres
Preferable Regions
Practical experience
Service models of a number of devices have been created.
Environmental impact
None.
Type of collaboration sought
Terms and restrictions
The technology transfer shall include authorial accompaniment.
Available technical assistance