STUDY OF THE INFLUENCE OF THE FUNCTIONALIZATION OF NANO FILLERS ON THE PROPERTIES OF EPOXY COMPOSITES

The purpose of the study is to study the influence of nanofiller (aluminum nitride and nanoalmases) on the structure and physical and chemical properties of epoxy polymer composites and surface functionality of these nanoparticles with amino acetic acid. In the course of the study, the optimal concentrations of 5% and 7.5% of the amino acetic acid required to ensure uniform distribution of nanoalmases (NA) and aluminum nitride (AlN) particles in the polymer matrix. It was found that the listed concentrations of the functionalizing agent lead to a significant increase in the mechanical properties of composites: as a result of the introduction of functionalized nanofillers with nano-fillers, an increase in bending strength, modulus of elasticity, tensile strength, impact resistance and heat resistance of epoxy composites was observed. The maximum increase was 6-50%. 0.1 drunk. HA and 0.05 drunk.H. With the introduction of AlN, the greatest mechanical and thermal characteristics were achieved, that is, this led to an increase in heat resistance from 100-110°C to 132-168°C. Pure and functional nanoparticles have also increased fire resistance by reducing mass loss and increasing the oxygen index. In general, these nanocomposite materials have exceptional mechanical, thermal and refractory properties, which is very important for modern applications with stable strength and fire resistance.

1. References

2. Muhammad G., Hussain M.A., Anwar F., Ashraf M. and Gilani A.H. Alhagi: a plant genus rich in bioactives for pharmaceuticals // Phytotherapy research. - 2015. - V.29. No.1. -1-13 p. https://doi.org/10.1002/ptr.5222 (in English).

3. Rakhimov K.D., Burasheva G.Sh., Ustenova G.O. Pharmacological and chemical-pharmaceutical study of herbal remedies from Alhagi kirgisorum Schrenk. - Almaty, 2018, - 394 p. http://e-kitap.kz/book/4866 (in Russian).

4. Kukhtenko H., Bevz N., Hudz N., Datkhayev U. and Kukhtenko O. Alhagi kirghisorum schrenk: technological aspects of its thick extract for the pharmaceutical application // Agrobiodivers Improv Nutr Health Life Qual, 6, - 2022(1), - 75-84 p. https://doi.org/10.15414/ainhlq.2022.0009 (in English).

5. Zhakipbekov K., Posylkina O., Zhumabayev N., Datkhayev U., Zhumabayev N., Almurzaeva A., Mukanova A. Analysis of the current state of the pharmaceutical market of the republic of Kazakhstan // ScienceRise: Pharmaceutical Science. - 2023. - V.42. No.2. - 57 p. https://doi.org/10.15587/2519-4852.2023.267787 (in English).

6. Alchera F., Ginepro M., Giacalone G. Microwave-assisted extraction of polyphenols from blackcurrant by-products and possible uses of the extracts in active packaging // Foods. - 2022, V.11. No.18. - 2727 p. https://doi.org/10.3390/foods11182727 (in English).

7. Tomasi I.T., Santos S.C., Boaventura R.A., Botelho C.M. Optimization of microwave-assisted extraction of phenolic compounds from chestnut processing waste using response surface methodology // Journal of Cleaner Production. - 2023, - V.395. - 136452 p. https://doi.org/10.1016/j.jclepro.2023.136452 (in English).

8. Razola-Díaz M.D., Verardo V, Guerra-Hernández EJ, García-Villanova Ruiz B, Gómez-Caravaca AM. Response Surface Methodology for the Optimization of Flavan-3-ols Extraction from Avocado By-Products via Sonotrode Ultrasound-Assisted Extraction // Antioxidants. - 2023. - V.12. No.7. - 1409 p. https://doi.org/10.1016/j.ultsonch.2021.105773 (in English).

9. Mansour H.M., Zeitoun A.A., Abd-Rabou H.S., El Enshasy H. A., Dailin D.J., Zeitoun M.A., & El-Sohaimy. S.A. Antioxidant and anti-diabetic properties of olive (Olea europaea) leaf extracts: In vitro and in vivo evaluation // Antioxidants. - 2023. - V.12. No.6. - 1275 p. https://doi.org/10.3390/antiox12061275 (in English).

10. Kalpoutzakis E., Chatzimitakos T., Athanasiadis V., Mitakou S., Aligiannis N., Bozinou E., Gortzi O., Skaltsounis L.A. and Lalas S.I. Determination of the total phenolics content and antioxidant activity of extracts from parts of plants from the Greek Island of Crete // Plants. - 2023. - V.12. No. 5. - 1092 p. https://doi.org/10.3390/plants12051092 (in English).

11. Şahin B., Cakır C., Sıcak Y. and Öztürk M., Chemical composition and biological activities of essential oils and extract of Eucalyptus citriodora Hook // International Journal of Secondary Metabolite. - 2024. - V.11. No.2. - 394-407 p. https://doi.org/10.21448/ijsm.1384581 (in English).