Optimization of the Composition of Silicone Enamel by the Taguchi Method Using Surfactants Obtained from Oil Refining Waste

Abstract

The aim of this work is to optimize the composition of a two-component silicone enamel consisting of an aluminum pigment and a polyphenylsiloxane polymer to obtain the maximum dispersion of the pigment in the coating. The following products were used as surfactants: AS-1, PEPA, and Telaz. To assess the effect of surfactants on the dispersion of the pigment, computer-optical microscopy was used. The results of the studies showed that all the studied surfactants cause an improvement in the dispersion of the pigment. According to the degree of influence on the dispersion of the pigment, surfactants can be arranged in a row: PEPA > Telaz > AS-1. When the PEPA content in the enamel is 0.25 g/dm3, a decrease in the diameter of the pigment particles by 46% (from 26 to 14 microns) is recorded, with an increase in their specific amount by 2 times (from 258 to 550 pcs). Optimal enamel compositions allow a reduction in the corrosion rate by 11 times (from 0.6 to 0.053 mm/year) and improvement to the decorative properties of coatings (roughness, gloss, etc.). The effectiveness of the AS-1 product (obtained from oil refining waste) as a dispersant additive in silicone enamel has been proven.

Development of an Ultrasonic Method for the Quality Control of Polyethylene Tanks Manufactured Using Rotational Molding Technology

“…After measuring the values of the amplitude coefficient of the third harmonic corresponding to a certain combination of input parameters ( Table 2 ), the experimental array was sampled on dot plots in accordance with the PDP method [ 75 , 76 , 77 , 78 , 79 , 80 , 81 ], and the particular dependencies were obtained, which are shown in Figure 12 , Figure 13 and Figure 14 .…”

“…of the ultrasonic signal was carried out using the method of probabilistic–deterministic planning (PDP). A detailed description of the PDP method for modeling multiparameter processes is presented in [ 75 , 76 , 77 , 78 , 79 , 80 , 81 ]. The experiment was designed with a “3 × 3 × 4” plan and included all the possible combinations of input parameters.…”

“…After measuring the values of the amplitude coefficient of the third harmonic corresponding to a certain combination of input parameters (Table 2), the experimental array was sampled on dot plots in accordance with the PDP method [75][76][77][78][79][80][81], and the particular dependencies were obtained, which are shown in Figures 12-14 To derive a multifactorial statistical mathematical model of the effect of PIAT and temperature on β, the following equation proposed by M. M. Protodiakonov (5) was used:…”

Corrosion Protection and Heat Resistance of Paints for Outdoor Use

“…There is a wide variety of heat-resistant coatings and coatings for corrosion protection, but limited numbers of studies deal with the combination of these two criteria [ 18 , 19 , 20 , 21 ]. Given the current state of the art, developing a coating with high mechanical and chemical resistance, high flexibility, good crack-free adhesion and long-term heat resistance using liquid silicone resin-based paints has been an unresolved problem, especially for non-sand-blasted steel surfaces.…”

Mathematical modeling of the influence of technological parameters of rotary molding on the amplitude of the ultrasonic bottom signal

“…[5][6][7][8]. A detailed description of the process of applying the VDP method for modeling multiparametric processes is presented in [8][9][10][11][12][13][14][15].…”