Category Archives: Year 2014 Issue 11

Cultivation of industrial hemp accelerating reclamation of land degraded by open mining of lignite

Cultivation of industrial hemp accelerating reclamation of land degraded by open mining of lignite
MAŃKOWSKI J., KOŁODZIEJ J., KUBACKI A., BARANIECKI P., PNIEWSKA I., PUDEŁKO K.

Please cite as: CHEMIK 2014, 68, 983–988

One of the main energy sources in Poland is lignite. Lignite is excavated by strip mining method. Unfortunately this method caused huge negative transformations in natural environment. When lignite seam is exhausted, a dead excavations site is left which is...

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Legal aspects of waste railway sleepers management

Legal aspects of waste railway sleepers management
KUKULSKA-ZAJĄC E., KRÓL A., KRASIŃSKA A.

Please cite as: CHEMIK 2014, 68, 979–982

The article presents an overview of legal acts concerning the proper use of waste railway sleepers, in terms of the possibilities of reuse. Particular attention is paid to the procedure when revising the classifi cation of railway sleepers from hazardous to non-hazardous waste.

Keywords: railway sleepers, hazardous waste, revision of the classifiation

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Algae – future from the sea .

Algae – future from the sea .
KĘPSKA D., OLEJNIK Ł

Please cite as: CHEMIK 2014, 68, 967–972

Algae are photosynthetic prokaryotic or eukaryotic organisms. Their cells contain amino acids, vitamins, minerals, essential fatty acids, aosain, polyphenols, a potent moisturizing acids, polysaccharides, which are stimulating blood circulation, ß-carotene and carotenoids. With such a rich chemical composition, biomass of algae has been used in food, pharmaceutical and cosmetic industries. Preparations of algae used as...

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Evaluation of residual cross-linking caused by selfheating effect in epoxy-based firous composites using Raman spectroscopy

Evaluation of residual cross-linking caused by selfheating effect in epoxy-based firous composites using Raman spectroscopy
KATUNIN A., KRUKIEWICZ K., TURCZYN R.

Please cite as: CHEMIK 2014, 68, 957–966

Mechanical cyclic loading of polymeric structures causes dissipation processes, which introduce the self-heating effect, i.e. the local temperature increase equivalent to the stress gradient. In some specifi cases of fatigue loading the self-heating effect dominates the process and intensifis the structural degradation. Previous studies in...

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Fluorocarbofunctional silanes as precursors of strongly hydrophobic materials

Fluorocarbofunctional silanes as precursors of strongly hydrophobic materials
KARASIEWICZ J., DUTKIEWICZ A., MACIEJEWSKI H.

Please cite as: CHEMIK 2014, 68, 945–956

Methods of modifiation of glass plates aimed at forming hydrophobic and superhydrophobic coatings have been described in the paper. The surface was modifid with the use of compounds of low surface free energy by employing florocarbofunctional silanes and by performing an addtional modifiation with silica sol that increased the surface roughness. Water...

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