Introduction: Humic substances (HSs) are very complex and heterogeneous organic matter with high molecular weight and various functional groups, which are produced from the chemical and biological degradation of plants and animal tissues. HS can cause: colour, odour and taste problems in drinking water, biological growth in distribution systems, increase in chlorine demand for disinfection, mem...

A new styrene-maleic anhydride-based dispersing resin is described and its utility in preparing waterbased metallic and organic pigment dispersions and printing inks is demonstrated. This resin contains amic acid functionality, groups that are possible to form only with anhydride-containing resins. A unique combination of properties is exhibited by this resin, including neutral pH, high water s...

This paper describes the carbonization behavior of phenol-formaldehyde resin (PF) blended in the presence of simple organic substances of m-phthalic acid (PA), trimesic acid (TMA) and phloroglucinol (PG). The weight loss and heat flow were monitored in order to study their carbonization behavior by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC), respectively. These ...

The use of corrosion inhibitors can effectively avoid the metals and alloys, but conventional organic/inorganic have certain toxic side effects environmental pollution problems (including some expensive reagents catalysts), prompting researchers to turn their attention research water-soluble polymer with green environment friendly low pollution. This paper reviews action mechanism inhibitors, s...

Introduction: Both resin based sealants and glass ionomer cement are widely used for sealing the pit and fi ssures for preventing occlusal caries but the effi cacy of one over the other is not conclusively proven. The dilemma of hidden caries has led to invasively opening of the fi ssure before sealant placement leading to other advantages such as elimination of organic material and plaque, ena...

In order to improve the performance of soft plantation wood, an environmentally friendly wood modifier was developed. First, using urea and melamine as crosslinking agents, glucose-urea-melamine resin (MUG) prepared with glucose under catalysis inorganic acid metal ions. Then MUG, sodium silicate, distilled water were mixed stirred at 40 °C prepare MUG resin/sodium silicate compound (G20S10, G1...

The incinerators described were developed to dispose of waste liquids and sludges fr' om paint and resin plants. The operation of two prototype designs demonstrated: (1) complete combustion without fluid atomization, (2) ability to burn organic liquids containing dissolved and suspended solids, (3) low noise level, (4) smoke-free stack effluent without the use of air pollution control equipment...

This study evaluated the effect of fiber addiction in flexural properties of 30 wt% silica filled BisGMA resin (FR) or unfilled Bis-GMA (UR). Ten groups were created (N = 10) varying the resin (FR or UR) and quantity of glass fibers (wt%: 0, 10, 15, 20, and 30). Samples (10 × 2 × 1 mm) were submitted to flexural strength test following SEM examination. Data were analyzed by two-way ANOVA, Tukey...

A. Kmita, AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, Krakow, Poland. A. Roczniak, M. Holtzer, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland. Pyrolysis-gas chromatography-mass spectrometry (PyGC/MS) was used to identify the major organic products created by pyrolysis of the ALPHASET binder components: har...