APPLICATION OF THERMAL ANALYSIS FOR THE STUDY OF POLYMER COMPOSITE MATERIALS BASED ON POLYPROPYLENE AND RICE HUSKS
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
FGBOU VO "KNITU"
from 01.01.1920 until now
Kazan, Kazan, Russian Federation
from 01.01.1920 until now
Kazan, Kazan, Russian Federation
2.
KNITU; Kazan National Research Technological University
3.
Kazan National Research Technological University
Russian Federation
Russian Federation
4.
KNITU
Type:
Article
Pages:
from 54
to 58
Status:
In work
Language:
Russian
Keywords:
POLYMER COMPOSITE MATERIALS, POLYPROPYLENE, RICE HUSK, THERMAL ANALYSIS, THERMAL STABILITY
Abstract (English):
The article investigates polymer composite materials based on polypropylene and rice husk using thermal analysis methods to evaluate their chemical, physical, and structural changes under thermal exposure. Methods of simultaneous thermal analysis were applied, and mass spectrometry studies were conducted to determine the content and distribution of silicon dioxide (SiO₂) within the composite structure. Particular attention was paid to the effect of SiO₂ dosage on the thermal characteristics of the materials. Both a control polypropylene sample without filler and composite materials with rice husk of various fractions (up to 200, 200-250, 250-355, 355-560, 560-630, 630-1250 μm) and filler content ranging from 10% to 60% by mass were analyzed. The results showed that the addition of rice husk increases the temperature of the beginning of decomposition from 217 °C to 240 °C, indicating improved thermal stability of the composite. Thermogravimetric analysis demonstrated that increasing the rice husk content reduces mass loss in the 240-400 °C range, confirming the material's enhanced stability. DTA curves revealed that decomposition of composites containing up to 40% rice husk occurs in two stages, while at 50-60% it simplifies to a single stage with the primary mass loss at lower temperatures. It was established that smaller filler particles (up to 200-250 μm) shift the peaks of exothermic effects toward lower temperatures, indicating the impact of filler dispersion on the material's thermal behavior. The optimal characteristics of thermal stability and behavior were achieved with a filler content in the 40-50% range and particle size up to 200 μm, allowing the material's structure to be effectively preserved at high temperatures.
The article investigates polymer composite materials based on polypropylene and rice husk using thermal analysis methods to evaluate their chemical, physical, and structural changes under thermal exposure. Methods of simultaneous thermal analysis were applied, and mass spectrometry studies were conducted to determine the content and distribution of silicon dioxide (SiO₂) within the composite structure. Particular attention was paid to the effect of SiO₂ dosage on the thermal characteristics of the materials. Both a control polypropylene sample without filler and composite materials with rice husk of various fractions (up to 200, 200-250, 250-355, 355-560, 560-630, 630-1250 μm) and filler content ranging from 10% to 60% by mass were analyzed. The results showed that the addition of rice husk increases the temperature of the beginning of decomposition from 217 °C to 240 °C, indicating improved thermal stability of the composite. Thermogravimetric analysis demonstrated that increasing the rice husk content reduces mass loss in the 240-400 °C range, confirming the material's enhanced stability. DTA curves revealed that decomposition of composites containing up to 40% rice husk occurs in two stages, while at 50-60% it simplifies to a single stage with the primary mass loss at lower temperatures. It was established that smaller filler particles (up to 200-250 μm) shift the peaks of exothermic effects toward lower temperatures, indicating the impact of filler dispersion on the material's thermal behavior. The optimal characteristics of thermal stability and behavior were achieved with a filler content in the 40-50% range and particle size up to 200 μm, allowing the material's structure to be effectively preserved at high temperatures.
Keywords:
POLYMER COMPOSITE MATERIALS, POLYPROPYLENE, RICE HUSK, THERMAL ANALYSIS, THERMAL STABILITY
POLYMER COMPOSITE MATERIALS, POLYPROPYLENE, RICE HUSK, THERMAL ANALYSIS, THERMAL STABILITY
