Funct. Mater. 2024; 31 (1): 26-33.

doi:https://doi.org/10.15407/fm31.01.26

Development and research of epoxy polymer with improved thermophysical characteristics

P.O. Maruschak1, M.V. Kindrachuk2, I.A. Sieliverstov3, V.D. Sharanov4, D.O. Danylenko4, M.V. Storozhenko4, L.O.Sapronova4, Y.M. Shulga4, O.V. Sharanov4, V.M. Yatsyuk5>

1Ternopol Ivan Pul′uj National Technical University, 56 Ruska Ave., Ternopil, 46001, Ukraine
2National Aviation University Kosmonavta Komarova 1, Kyiv, Ukraine, 03058, Ukraine
3Kherson National Technical University, 24 Beryslavs′ke Hwy., Kherson, 73008, Ukraine
4Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
5Ternopil Research Forensic Center of MIA of Ukraine, Stepana Budnoho, 48 str., 46001 Ternopil, Ukraine

Abstract: 

Technological methods for modifying the DER-331 epoxy oligomer have been developed to improve the thermophysical properties of composite materials and protective coatings based on them. The chemical structure of the phthalic anhydride modifier (PA modifier) was investigated by gas chromatography with mass selective detection. This allowed us to reveal the molecular compatibility of the components and, accordingly, their interaction. Based on the research findings, the optimal content of the phthalic anhydride modifier in the reactoplastic matrix with the improved thermophysical properties was determined, which is q = 0.10...0.25 pts. wt. per 100 pts. wt. of the DER-331 oligomer and 10 pts. wt. of the triethylenetetramine (TETA) cold hardener. The modified composites have the following characteristics: Martens heat resistance is Т = 360...362 K; thermal coefficient of linear expansion is α = (2.33...2.49) × 10-5

Keywords: 
transport parts; epoxy resin; thermostability; properties; fracture; materials

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