Study of thermohumid aging of aircraft fiberglass plastic

Старцев, О. В.; Prokopenko, K.; Litvinov, A. A.; Krotov, A. S.; Anikhovskaya, L. I.; Dement’eva, L. A.

doi:10.1134/s1995421210010107

Cited by 4 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the majority of the research conducted, the duration of exposure to aggressive environments makes several months, and only in a few cases it is more than a year. Thus, for expanded usage of BP as effective construction material under various climatic conditions, inclusive, that of the Arctic, it is reasonable and effective to perform long-term tests (a decade-long or more) of other composite materials tested before [41,56,57,58], with monitoring of alterations in their mechanical properties and an analysis of developing processes of climatic ageing of BP [36,37,38,39,40,41].…”

Section: Discussionmentioning

confidence: 99%

“…We can hypothesize that with a high BF stability, the main reasons for the decrease in BP mechanical properties are physical and chemical transformations in polymer matrices and at the polymer-filler interface. However, the reversible effects of moisture plasticization and the irreversible destruction effects, previously analyzed in detail for GP [36,37,38,39,40,41], are not discussed in the reviewed works and should be investigated additionally. To do this, it is advisable to use informative and well-established methods of the dynamic mechanical analysis, thermomechanical analysis, linear dilatometry, calorimetry, and to reveal the mechanisms of physical and chemical transformations in the volume and on the surface of the samples [41].…”

Section: Water and Aqueous Solutions Of Saltsmentioning

confidence: 99%

See 1 more Smart Citation

The effects of aggressive environments on the mechanical properties of basalt plastics

Лебедев

Старцев

Кычкин

2020

Heliyon

View full text Add to dashboard Cite

A review and analysis of changes in mechanical properties of basalt fibers (BF) and basalt composite materials under effects of aggressive environments in reference to foreign and Russian scientific literature has been carried out. The changes in the physical and mechanical properties of the fiberglass (FG) and basalt plastic (BP) have been compared. The analysis shows that BF is a good alternative to fiberglass for elaboration of composite materials for various purposes. In the most aggressive alkaline environments, BP resistance is higher as compared with that of FG. If required, BF resistance to chemically active media could be increased by midifying its composition and applying protective layers and heat treatment of fibers. For extended use of BP as an effective structural material under various climatic conditions, including in the Arctic, long-term tests of 10 or more years are advisable and relevant, with control of changes in their mechanical parameters and an analysis of processes of climatic aging developing in BP.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Water and Aqueous Solutions Of Saltsmentioning

confidence: 99%

The effects of aggressive environments on the mechanical properties of basalt plastics

Лебедев

Старцев

Кычкин

2020

Heliyon

View full text Add to dashboard Cite

show abstract

The Influence of Internal Stresses on the Aging of Polymer Composite Materials: a Review

Каблов

Startsev

2021

Mech Compos Mater

View full text Add to dashboard Cite

The formation of internal stresses in polymer composite materials (PCMs) caused by different elastic moduli and thermal expansion coefficients of polymer resin and reinforcing fibers, as well as by swelling due to the moisture uptake is discussed. The influence of thermal cycles on the internal stresses and strength of the materials was studied in dry and wet atmospheres. It shown that thermal cycles cause a periodic jumps in the stresses at lowfrequency mechanical loadings, during which the mechanical properties are degraded due to the formation of microscopic cracks in the polymer matrix. The relative changes in the strength, elastic modulus, glass-transition temperatures, moisture diffusion coefficient, and other PCM physical characteristics are proportional to the logarithm of the number of cycles and also depend on the form and size of specimens, amplitude, conditions, and length of thermal cycles. A prolonged action of external actions relaxes the internal stresses and reduces their influence on the aging of PCMs.

show abstract