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Surface properties of graphene and graphene/diamond composites located at a substrate with tungsten carbide doped by metals composites

The basis of the obtained materials was 95% (wt%) tungsten carbide with the addition of about 4.75% Co 0.1% Nb and 0.15% Tl. During sintering flake graphene was added and in the case of the second sample also nano diamonds were added into the top layer. Surface properties of the obtained materials were determined by wettability. The apparent surface free energy was described...

Influence of bridged monomer on porosity and sorption properties of mesoporous silicas functionalized with diethylenetriamine groups

Mesoporous organosilicas functionalized simultaneously with both pendant amine groups and ethylene/phenylene bridges, were synthesized to evaluate the effect of the bridges incorporated in the silica framework on the structure, porosity and adsorption properties of final materials. It turned out that the presence of the bridges enhanced the formation of porosity but adversely...

Apparent Surface Free Energy of Polymer/Paper Composite Material Treated by Air Plasma

-Sklodowska University, 20-031 Lublin, Poland Correspondence should be addressed to Konrad Terpiłowski; lp.nilbul.scmu.atzcop@lipret Received 30 January 2017; Accepted 2 April 2017; Published 27 April 2017 ... Academic Editor: Stefano Turri Copyright © 2017 Konrad Terpiłowski. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution

Apparent Surface Free Energy of Polymer/Paper Composite Material Treated by Air Plasma

Surface plasma treatment consists in changes of surface properties without changing internal properties. In this paper composite polymer/paper material is used for production of packaging in cosmetic industry. There are problems with bonding this material at the time of packaging production due to its properties. Composite surface was treated by air plasma for 1, 10, 20, and 30 s...

Effect of gluten on the properties of ternary biopolymers based on gluten, whey protein concentrate, and kaolinite

The aim of the research was to investigate the effect of different gluten (Gl) concentration on ternary biopolymers with whey protein concentrate (WPC) and kaolinite (KAO). Distilled water dispersions of Gl (10–30%), WPC (7%), and KAO (5%) were heated at 80 °C for 30 min. The concentration of WPC and KAO was based on previous research with montmorillonite. Rheological properties...

Impact of anionic polyacrylamide on stability and surface properties of the Al2O3–polymer solution system at different temperatures

The stability mechanism and thermal properties of the system alumina–anionic polyacrylamide (PAM) was studied. The polymer’s adsorption properties in dependence on the following parameters solution pH (in the range 3–9), temperature (in the range 15–35 °C), and carboxyl groups’ content in the PAM chains (in the range 5–30 %) were examined. The turbidimetry method was applied for...

Modified silicas with different structure of grafted methylphenylsiloxane layer

The method of a chemical assembly of the surface polymeric layer with high contents of the modifying agent was developed. Powders of nanodispersed silica with chemisorbed polymethylphenylsiloxane (PMPS) were synthesized by solvent-free chemical assembly technique with a dimethyl carbonate (DMC) as scission agent. Samples were characterized using FTIR spectroscopy, transmission...

New controlled release material: aerated egg white gels induced by calcium ions

, Breeding and Biotechnology , University of Life Sciences in Lublin , Akademicka Street 15, 20-950 Lublin , Poland 9 Cezary Kwiatkowski 10 Konrad Terpiłowski The aim of the research was to use low-mineral

Surface Properties of Aerated Ion-induced Whey Protein Gels

Aerated whey protein gels were formed using calcium chloride, magnesium chloride or iron (II) chloride induced gelation of pre-denatured protein dispersions. The structure of the obtained gel surface depends on the type and concentration of added salt. Higher cation concentration produced gels a with higher quadratic mean of the surface roughness and maximum roughness height...

Investigation of the polyvinyl alcohol stabilization mechanism and adsorption properties on the surface of ternary mixed nanooxide AST 50 (Al2O3–SiO2–TiO2)

A new adsorbent consisting of fumed, mixed alumina, silica, and titania in various proportions (AST 50) was investigated. The studied material was prepared by chemical vapor deposition method. The diameter of AST 50 primary particles was equal to about 51 nm which denotes that it can be classified as a nanomaterial. In the presented paper, the adsorption properties of polyvinyl...