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Functionally Active Microheterogeneous Systems for Elastomer Fire- and Heat-Protective Materials.
Victor F Kablov1, Oksana M Novopoltseva1, Daria A Kryukova1,2
1Department of Chemical Technology of Polymers and Industrial Ecology, Volzhsky Polytechnic Institute (Branch) of Volgograd State Technical University, 42a Engelsa st., Volzhsky 404121, Russia.
Molecules (Basel, Switzerland)
|July 14, 2023
Summary
This study enhances elastomer heat protection using microspheres, microfibers, and a modifier. These additives improve coke strength, increasing heating time by 8-17% and reducing burn speed by 6-17%.
Area of Science:
- Materials Science
- Polymer Chemistry
- Engineering
Background:
- Elastomeric materials are crucial for short-term protection in extreme environments (aerospace, marine, oil & gas).
- Optimizing their thermophysical and fire-protective properties is essential for demanding applications.
Purpose of the Study:
- To investigate the impact of functionally active structures on elastomer properties.
- To evaluate the influence on physical, mechanical, thermophysical, and fire-protective characteristics.
Main Methods:
- Physical and mechanical testing using Shimazu AG-Xplus.
- Morphological analysis via scanning electron microscopy (Versa 3D).
- Thermal analysis (differential thermal and thermogravimetric) using derivatograph Q-1500D.
Main Results:
- A synergistic effect was observed with aluminosilicate microspheres, carbon microfibers, and a phosphor-nitrogen-organic modifier.
- Enhanced coke strength and intensified carbonization led to improved heat protection.
- An 8-17% increase in heating time and a 6-17% decrease in linear burning speed were recorded.
Conclusions:
- The developed elastomer compositions exhibit superior heat-protective properties.
- Microspheres effectively counteract the negative effects of microfibers on density and thermal conductivity.
