COMPOSITION OF THE CESS RESIDUE IN THE INDUSTRIAL PROCESS OF CARBONIZATION OF RICE HUSK AND STEM IN PRODUCINGFILLER FOR POLYMERIC MATERIALS
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Kazan National Research Technological University
2.
OOO "Sibur"
3.
OOO "Sibur PoliLab"
4.
Al-Farabi Kazakh National University
Nacional'naya inzhenernaya akademiya Respubliki Kazahstan
Nacional'naya inzhenernaya akademiya Respubliki Kazahstan
5.
Al-Farabi Kazakh National University
Nacional'naya inzhenernaya akademiya Respubliki Kazahstan
Nacional'naya inzhenernaya akademiya Respubliki Kazahstan
6.
Belarusian State Technological University
7.
KNRTU
8.
KNITU; KNRTU
9.
Kazan National Research Technological University
10.
Kazan National Research Technological University
11.
KNITU; KNRTU
12.
Kazan National Research Technological University
Kazan, Russian Federation
Kazan, Russian Federation
13.
Kazan National Research Technological University
Kazan, Russian Federation
Kazan, Russian Federation
Type:
Article
Pages:
from 48
to 52
Status:
Published
Received:
04.08.2025
Accepted:
07.08.2025
Published:
07.08.2025
Language:
Russian
Keywords:
CARBONIZATION PROCESS, STILL RESIDUE, CARBON-SILICEOUS COMPOSITE, RICE HUSK AND STEM, SOLUBILITY, THERMOGRAVIMETRY, CHEMICAL COMPOSITION, X-RAY FLUORESCENCE ANALYSIS, IR SPECTROSCOPY
Abstract (English):
In the production of carbon-silica composite used as a filler for polymeric materials and obtained from plant waste such as rice husks and stems, 15-22% of still residue is formed during the carbonization process. This still residue is a resin. It was of interest to study the composition of this product, since it is obtained in commercial quantities and can be of interest as a functional additive for various purposes in the formulations of polymer compositions. A study of the still residue solubility showed that this resin is poorly soluble in both polar and non-polar solvents. Thermogravimetric analysis showed that the mass loss onset temperature is 60℃, at a temperature of 100℃ the sample loses 1.1% of its mass. At a temperature of 180℃ the mass loss is 5% by weight, the temperature of 10% mass loss is 228℃. During exposure at a temperature of 120℃, it was found that after 1 hour of exposure, the change in its mass ceases, which is due to the evaporation of fractions with a boiling point of up to 120℃. Further exposure of the resin for 4 hours does not lead to a change in mass. The composition of the studied still residue of the carbonization process was analyzed using X-ray fluorescence analysis methods. It was found that, excluding hydrogen, this resin mainly consists of carbon (̴ 69% by weight) and oxygen (̴ 29% by weight), as well as extremely small amounts of other chemical elements. A study using the IR spectroscopy method showed that in addition to aliphatic fragments, the resin contains a significant amount of polycyclic and substituted aromatic hydrocarbons, as well as oxygen-containing functional groups. The results obtained suggest that this product may be of interest as a functional additive in polymer compositions for various purposes.
In the production of carbon-silica composite used as a filler for polymeric materials and obtained from plant waste such as rice husks and stems, 15-22% of still residue is formed during the carbonization process. This still residue is a resin. It was of interest to study the composition of this product, since it is obtained in commercial quantities and can be of interest as a functional additive for various purposes in the formulations of polymer compositions. A study of the still residue solubility showed that this resin is poorly soluble in both polar and non-polar solvents. Thermogravimetric analysis showed that the mass loss onset temperature is 60℃, at a temperature of 100℃ the sample loses 1.1% of its mass. At a temperature of 180℃ the mass loss is 5% by weight, the temperature of 10% mass loss is 228℃. During exposure at a temperature of 120℃, it was found that after 1 hour of exposure, the change in its mass ceases, which is due to the evaporation of fractions with a boiling point of up to 120℃. Further exposure of the resin for 4 hours does not lead to a change in mass. The composition of the studied still residue of the carbonization process was analyzed using X-ray fluorescence analysis methods. It was found that, excluding hydrogen, this resin mainly consists of carbon (̴ 69% by weight) and oxygen (̴ 29% by weight), as well as extremely small amounts of other chemical elements. A study using the IR spectroscopy method showed that in addition to aliphatic fragments, the resin contains a significant amount of polycyclic and substituted aromatic hydrocarbons, as well as oxygen-containing functional groups. The results obtained suggest that this product may be of interest as a functional additive in polymer compositions for various purposes.
Keywords:
CARBONIZATION PROCESS, STILL RESIDUE, CARBON-SILICEOUS COMPOSITE, RICE HUSK AND STEM, SOLUBILITY, THERMOGRAVIMETRY, CHEMICAL COMPOSITION, X-RAY FLUORESCENCE ANALYSIS, IR SPECTROSCOPY
CARBONIZATION PROCESS, STILL RESIDUE, CARBON-SILICEOUS COMPOSITE, RICE HUSK AND STEM, SOLUBILITY, THERMOGRAVIMETRY, CHEMICAL COMPOSITION, X-RAY FLUORESCENCE ANALYSIS, IR SPECTROSCOPY
