Development of care processes for conductive floorings
IGF 15272 N
In different sensitive working areas (like electronic industry, data processing or in medical instruments) electrostatic discharging has to be avoided because of its negative effects. In order to prevent electrostatic charging, elastic floorings with particular requirements concerning the electrical behaviour are usually being applied. To preserve their functional characteristics over a long time, these special floorings have to be cleaned regularly. The required cleaning effort is here significantly higher than that for conventional floorings. The common cleaning and floor care products, which should minimize the cleaning effort and the wear properties, cannot be used in the case of electrically conductive floorings, because of their isolating effects. One approach consists in the application of temporary coatings based on conductive additives, like polymers and pigments. In contrast to common antistatica, their efficiency doesn’t depend on the surrounding humidity. Aim of the project therefore was the development of applicable new care processes for conductive floorings. For this reason investigations were carried out on the introduction of electrically conductive polymers, respectively pigments in common floor care products. Different formulations were tested. Of practical relevance are long-term stable dispersions, in which when necessary the sedimented additives may be redispersed readily by shaking. The so modified floor care dispersions were applied by various procedures on representative electrically conductive floorings, like PVC, linoleum and rubber. Afterwards they were characterised and optimised with regard to surface/contact resistance, electrostatic protection of footwear and flooring in combination with a person, brightness (transparency) and roughness. The coated floorings were characterised in terms of the mentioned parameters after additional soiling with practical relevant soils and artificial weathering, respectively.
The IGF-project 15272 N of the research association Europäische Forschungsgemeinschaft Reinigungs- und Hygienetechnologie e.V., Campus Fichtenhain 11, D-47807 Krefeld, was supported via the AiF within the funding programme „Industrielle Gemeinschaftsforschung und –entwicklung (IGF)“ by the Federal Ministry of Economic Affairs and Technology (BMWi) due to a decision of the German Parliament..
The research report is available on request from FRT.