Polymers and Fluoroplastics Technology Department

The department is engaged in studying and testing of plastics and polymeric composites and in fluoroplastic technology. It is ranked among the leading institutions developing and processing fluoroplastics in the Czech Republic. METALOPLAST® self-lubricating bearing foil, the most widespread Czech invention in automotive industry, was developed here. The department has implemented a quality management system according to CSN EN ISO 9001:2008 certified by LL-C (Certification) Czech Republic s.r.o.

Polymers technology:

standardized testing of mechanical and physical properties (tension, pressure, bend, impact strength and notch toughness, Charpy - Izod, hardness, structural strength, peel test, etc.) at low and high temperatures
research in the field of mechanical lifetime and long-term utility properties of plastics and polymeric composites in a wide range of temperatures, stress speeds and different types of corrosive environment
creep testing at constant tension stress (23 - 80 °C) and bending stress at three-point arrangement (23 - 60 °C)
plastics assessment against slow and quick crack propagation (modified creep tensile testing until fracture in an inactive and tensio-active environment over the temperature range 23 - 80 °C)
testing mechanical lifetime of plastics parts including their welds in corrosive media (exposition tests in stressed and unstressed state, generalized curves of damage processes); assessment of strength and brittle silure characteristics under the conditions of stress corrosion action (ESC); assessment of internal stress in the moulded parts by exposure in surfactant
toughness tests under the conditions of multiaxial impact strength at an instrumented drop tester
work in the field of analysis of polymer base of granulates and products (pyrolysis analysis, DSC), light and elektron microscopy, density measurement, filler content, melt flow index etc.
expert statements on plastics part damage and material selection for specific applications and customer-specified tasks; the technical-engineering service is related to consulting services

Fluoroplastics technology:

METALOPLAST® - self-lubricating bearing foil
a foil made of PTFE (Teflon) filled with graphite and glass fibre and reinforced by metallic mesh with low fiction coefficient and high wear resistance
bands with a width of 300 mm and a thickness of 0.48 ± 0.02 mm
SP-25 with tin bronze mesh for loose bearings
SP-25L with tin bronze mesh for bonded bearings with surface prepared for sticking
SP-25N with stainless steel mesh
sliding pads for shifting of bridge structures and dilatation joints with a sliding layer of METALOPLAST® foil and a pad made of steel and hard rubber
foils made of virgin PTFE (Teflon) and PTFE filled with graphite, electrographite, glass fibre or bronze, bands with a width up to 150 mm, thickness of 0.12-2 mm
pressed and machined parts made of virgin PTFE and filled PTFE and fluorined copolymers
piston rings, gasket rings and seals made of filled PTFE for compressors and fittings
coatings made of PTFE and modified PTFE mixtures Xylan, Xylar, Xylac and Teflon S for anti-adhesive, sliding and electroinsulation applications up to part dimensions 1 x 0.8 x 0.8 m
corrosion-resistant coatings made of fluoropolymers Halar (ECTFE) and others up to part dimensions 1 x 0.8 x 0.8 m for chemistry, pharmacy and biotechnology
coatings of fasteners and metallic parts by Xylan-type fluoropolymers using Dip-Spin Coating technology for the purpose of corrosion-resistant and anti-friction treatment
DELTA-MKS® serial corrosion-protective treatment of fasteners, springs and small metallic parts with coatings of Delta-Tone 9000 and Delta-Seal by Dip-Spin Coating technology (licence Dörken MKS-Systeme GmbH & Co. KG), especially for automotive industry
Delta-Tone 9000 - basecoat on a zinc flake basis with cathodic protection effect
Delta-Seal - topcoat on a basis of curable plastics, possibly with PTFE addition, corrosion resistance during the salt spray test according to DIN 50021 from 480 to 1000 hours; surface treatment of strength bolts and spring elements without a danger of hydrogen embrittlement
new improved materials Delta-Protekt KL100 as basecoat and Delta-Protekt VH 300, possibly VH 301GZ as topcoat

Contact:
Department Manager - Ing. Vratislav Hlaváček, CSc.
Phone: +420 274 023 186
Fax: +420 222 724 20
Mobile: +420 602 860 548
E-mail: fluoroplastics@svum.cz