2 research outputs found
ΠΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½Ρ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΡΡΠ½ΠΎΡΡΠ΅ΠΉ Π²ΠΏΠ»ΠΈΠ²Ρ Π½Π° ΠΏΠΈΡΠΎΠΌΡ ΡΠ΅ΠΏΠ»ΠΎΡΠΌΠ½ΡΡΡΡ ΡΠ° ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠΎΠΏΡΠΎΠ²ΡΠ΄Π½ΡΡΡΡ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΠ½ΠΈΡ Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ² ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡ Π²ΠΈΠ·Π½Π°ΡΠ°Π»ΡΠ½ΠΈΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡΠ²
This paper reports a series of experimental studies to establish regularities of the integrated effect exerted on the specific heat capacity of polymer nanocomposites by such factors as the temperature regime of their production, the value of the mass fraction of the filler, and the temperature of the composite material. The studies were conducted for nanocomposites based on polypropylene filled with carbon nanotubes. When obtaining composites, the method of mixing the components in the melt of the polymer was used. During the studies, the temperature of nanocomposites varied from 295 to 455Β K, the mass fraction of the filler β from 0.3 to 10Β %. The basic parameter of the technological mode for obtaining composite materials, the value of overheating the polymer melt relative to its melting point, varied in the range of 10...75Β K.
It is shown that the temperature dependence of the specific heat capacity of the considered composites is sensitive to changes in the overheating of the polymer melt only in the region maximum values of the specific heat capacity. Concentration dependences of the specific heat capacity of the considered nanocomposites at different values of their temperature and the level of overheating of the polymer melt have been built.
The studies have been carried out to identify the effects of the influence of the above parameters on the coefficient of thermal diffusivity of nanocomposites. It has been established, in particular, that an increase in the level of overheating the polymer could lead to a very significant increase in the coefficient of thermal diffusivity, which is all the more significant the higher the proportion of filler and the lower the temperature of the composite material. It is shown that the level of overheating the polymer melt relative to its melting point is a parameter that can be used as the basis for the creation of polymer composite materials with specified thermophysical properties.ΠΡΠΏΠΎΠ»Π½Π΅Π½ ΡΠΈΠΊΠ» ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΠΎ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠ΅ΠΉ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎΠ³ΠΎ Π²Π»ΠΈΡΠ½ΠΈΡ Π½Π° ΡΠ΄Π΅Π»ΡΠ½ΡΡ ΡΠ΅ΠΏΠ»ΠΎΠ΅ΠΌΠΊΠΎΡΡΡ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ
Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ² ΡΠ°ΠΊΠΈΡ
ΡΠ°ΠΊΡΠΎΡΠΎΠ², ΠΊΠ°ΠΊ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½ΡΠΉ ΡΠ΅ΠΆΠΈΠΌ ΠΈΡ
ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ, Π²Π΅Π»ΠΈΡΠΈΠ½Π° ΠΌΠ°ΡΡΠΎΠ²ΠΎΠΉ Π΄ΠΎΠ»ΠΈ Π½Π°ΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»Ρ ΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Ρ Π΄Π»Ρ Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΠΎΠ»ΠΈΠΏΡΠΎΠΏΠΈΠ»Π΅Π½Π°, Π½Π°ΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΡΠΌΠΈ Π½Π°Π½ΠΎΡΡΡΠ±ΠΊΠ°ΠΌΠΈ. ΠΡΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ² ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π»ΡΡ ΠΌΠ΅ΡΠΎΠ΄ ΡΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² Π² ΡΠ°ΡΠΏΠ»Π°Π²Π΅ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ°. Π Ρ
ΠΎΠ΄Π΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ² ΠΈΠ·ΠΌΠ΅Π½ΡΠ»Π°ΡΡ ΠΎΡ 295 Π΄ΠΎ 455 K, ΠΌΠ°ΡΡΠΎΠ²Π°Ρ Π΄ΠΎΠ»Ρ Π½Π°ΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»Ρ β ΠΎΡ 0,3 Π΄ΠΎ 10 %. ΠΡΠ½ΠΎΠ²Π½ΠΎΠΉ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ΅ΠΆΠΈΠΌΠ° ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² β Π²Π΅Π»ΠΈΡΠΈΠ½Π° ΠΏΠ΅ΡΠ΅Π³ΡΠ΅Π²Π° ΡΠ°ΡΠΏΠ»Π°Π²Π° ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ° ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ Π΅Π³ΠΎ ΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ βΠ²Π°ΡΡΠΈΡΠΎΠ²Π°Π»Π°ΡΡ Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ 10β¦75 K. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½Π°Ρ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ ΡΠ΄Π΅Π»ΡΠ½ΠΎΠΉ ΡΠ΅ΠΏΠ»ΠΎΠ΅ΠΌΠΊΠΎΡΡΠΈ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΠΌΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ² ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΊ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΏΠ΅ΡΠ΅Π³ΡΠ΅Π²Π° ΡΠ°ΡΠΏΠ»Π°Π²Π° ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ° ΡΠΎΠ»ΡΠΊΠΎ Π² ΠΎΠ±Π»Π°ΡΡΠΈ Π΅Π΅
ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΡ
Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ. ΠΠΎΠ»ΡΡΠ΅Π½Ρ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΎΠ½Π½ΡΠ΅ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΡΠ΄Π΅Π»ΡΠ½ΠΎΠΉ ΡΠ΅ΠΏΠ»ΠΎΠ΅ΠΌΠΊΠΎΡΡΠΈ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΠΌΡΡ
Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ² ΠΏΡΠΈ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
Π·Π½Π°ΡΠ΅Π½ΠΈΡΡ
ΠΈΡ
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΈ ΡΡΠΎΠ²Π½Ρ ΠΏΠ΅ΡΠ΅Π³ΡΠ΅Π²Π° ΡΠ°ΡΠΏΠ»Π°Π²Π° ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ°. ΠΡΠΏΠΎΠ»Π½Π΅Π½Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎ Π²ΡΡΠ²Π»Π΅Π½ΠΈΡ ΡΡΡΠ΅ΠΊΡΠΎΠ² Π²Π»ΠΈΡΠ½ΠΈΡ ΡΠΊΠ°Π·Π°Π½Π½ΡΡ
Π²ΡΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π½Π° ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠΎΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΎΡΡΠΈ Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ². Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, Π² ΡΠ°ΡΡΠ½ΠΎΡΡΠΈ, ΡΡΠΎ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ ΡΡΠΎΠ²Π½Ρ ΠΏΠ΅ΡΠ΅Π³ΡΠ΅Π²Π° ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ° ΠΌΠΎΠΆΠ΅Ρ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡΡ ΠΊ Π²Π΅ΡΡΠΌΠ° Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΌΡ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠΎΠΏΡΠΎΠ²ΠΎΠ΄Π½ΠΎΡΡΠΈ, ΠΊΠΎΡΠΎΡΠΎΠ΅ ΠΎΠΊΠ°Π·ΡΠ²Π°Π΅ΡΡΡ ΡΠ΅ΠΌ Π±ΠΎΠ»Π΅Π΅ ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΠΌ, ΡΠ΅ΠΌ Π²ΡΡΠ΅ Π΄ΠΎΠ»Ρ Π½Π°ΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»Ρ ΠΈ Π½ΠΈΠΆΠ΅ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΡΠΎΠ²Π΅Π½Ρ ΠΏΠ΅ΡΠ΅Π³ΡΠ΅Π²Π° ΡΠ°ΡΠΏΠ»Π°Π²Π° ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ° ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ Π΅Π³ΠΎ ΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠΌ, ΠΊΠΎΡΠΎΡΡΠΉ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ Π² ΠΎΡΠ½ΠΎΠ²Ρ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Ρ Π·Π°Π΄Π°Π½Π½ΡΠΌΠΈ ΡΠ΅ΠΏΠ»ΠΎΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈΠΠΈΠΊΠΎΠ½Π°Π½ΠΎ ΡΠΈΠΊΠ» Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΈΡ
Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΡΠΎΠ΄ΠΎ Π²ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½Ρ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΡΡΠ½ΠΎΡΡΠ΅ΠΉ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎΠ³ΠΎ Π²ΠΏΠ»ΠΈΠ²Ρ Π½Π° ΠΏΠΈΡΠΎΠΌΡ ΡΠ΅ΠΏΠ»ΠΎΡΠΌΠ½ΡΡΡΡ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΠ½ΠΈΡ
Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ² ΡΠ°ΠΊΠΈΡ
ΡΠ°ΠΊΡΠΎΡΡΠ², ΡΠΊ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½ΠΈΠΉ ΡΠ΅ΠΆΠΈΠΌ ΡΡ
ΠΎΡΡΠΈΠΌΠ°Π½Π½Ρ, Π²Π΅Π»ΠΈΡΠΈΠ½Π° ΠΌΠ°ΡΠΎΠ²ΠΎΡ ΡΠ°ΡΡΠΊΠΈ Π½Π°ΠΏΠΎΠ²Π½ΡΠ²Π°ΡΠ° Ρ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠΉΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»Ρ. ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ Π΄Π»Ρ Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΠΏΠΎΠ»ΡΠΏΡΠΎΠΏΡΠ»Π΅Π½Ρ, Π½Π°ΠΏΠΎΠ²Π½Π΅Π½ΠΎΠ³ΠΎ Π²ΡΠ³Π»Π΅ΡΠ΅Π²ΠΈΠΌΠΈ Π½Π°Π½ΠΎΡΡΡΠ±ΠΊΠ°ΠΌΠΈ. ΠΡΠΈ ΠΎΡΡΠΈΠΌΠ°Π½Π½Ρ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ² Π²ΠΈΠΊΠΎΡΠΈΡΡΠΎΠ²ΡΠ²Π°Π²ΡΡ ΠΌΠ΅ΡΠΎΠ΄ Π·ΠΌΡΡΡΠ²Π°Π½Π½Ρ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΡΠ² Ρ ΡΠΎΠ·ΠΏΠ»Π°Π²Ρ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΡ. Π Ρ
ΠΎΠ΄Ρ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ² Π·ΠΌΡΠ½ΡΠ²Π°Π»Π°ΡΡ Π²ΡΠ΄ 295 Π΄ΠΎ 455 K, ΠΌΠ°ΡΠΎΠ²Π° ΡΠ°ΡΡΠΊΠ° Π½Π°ΠΏΠΎΠ²Π½ΡΠ²Π°ΡΠ° β Π²ΡΠ΄ 0,3 Π΄ΠΎ 10 %. ΠΡΠ½ΠΎΠ²Π½ΠΈΠΉ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΡΡΠ½ΠΎΠ³ΠΎ ΡΠ΅ΠΆΠΈΠΌΡ ΠΎΠ΄Π΅ΡΠΆΠ°Π½Π½Ρ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠΉΠ½ΠΈΡ
ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ² β Π²Π΅Π»ΠΈΡΠΈΠ½Π° ΠΏΠ΅ΡΠ΅Π³ΡΡΠ²Ρ ΡΠΎΠ·ΠΏΠ»Π°Π²Ρ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΡ Π²ΡΠ΄Π½ΠΎΡΠ½ΠΎ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠΈ ΠΉΠΎΠ³ΠΎ ΠΏΠ»Π°Π²Π»Π΅Π½Π½Ρ β Π²Π°ΡΡΡΠ²Π°Π»Π°ΡΡ Π² Π΄ΡΠ°ΠΏΠ°Π·ΠΎΠ½Ρ 10...75 K. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΠΎ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½Π° Π·Π°Π»Π΅ΠΆΠ½ΡΡΡΡ ΠΏΠΈΡΠΎΠΌΠΎΡ ΡΠ΅ΠΏΠ»ΠΎΡΠΌΠ½ΠΎΡΡΡ ΡΠΎΠ·Π³Π»ΡΠ½ΡΡΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ² Ρ ΡΡΡΠ»ΠΈΠ²ΠΎΡ Π΄ΠΎ Π·ΠΌΡΠ½ΠΈ ΠΏΠ΅ΡΠ΅Π³ΡΡΠ²Ρ ΡΠΎΠ·ΠΏΠ»Π°Π²Ρ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΡ ΡΡΠ»ΡΠΊΠΈ Π² ΠΎΠ±Π»Π°ΡΡΡ ΡΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΈΡ
Π·Π½Π°ΡΠ΅Π½Ρ. ΠΡΡΠΈΠΌΠ°Π½ΠΎ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΡΠΉΠ½Ρ Π·Π°Π»Π΅ΠΆΠ½ΠΎΡΡΡ ΠΏΠΈΡΠΎΠΌΠΎΡ ΡΠ΅ΠΏΠ»ΠΎΡΠΌΠ½ΠΎΡΡΡ ΡΠΎΠ·Π³Π»ΡΠ½ΡΡΠΈΡ
Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ² ΠΏΡΠΈ ΡΡΠ·Π½ΠΈΡ
Π·Π½Π°ΡΠ΅Π½Π½ΡΡ
ΡΡ
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠΈ Ρ ΡΡΠ²Π½Ρ ΠΏΠ΅ΡΠ΅Π³ΡΡΠ²Ρ ΡΠΎΠ·ΠΏΠ»Π°Π²Ρ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΡ. ΠΠΈΠΊΠΎΠ½Π°Π½ΠΎ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΡΠΎΠ΄ΠΎ Π²ΠΈΡΠ²Π»Π΅Π½Π½Ρ Π΅ΡΠ΅ΠΊΡΡΠ² Π²ΠΏΠ»ΠΈΠ²Ρ Π·Π°Π·Π½Π°ΡΠ΅Π½ΠΈΡ
Π²ΠΈΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡΠ² Π½Π° ΠΊΠΎΠ΅ΡΡΡΡΡΠ½Ρ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠΎΠΏΡΠΎΠ²ΡΠ΄Π½ΠΎΡΡΡ Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠ². ΠΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, Π·ΠΎΠΊΡΠ΅ΠΌΠ°, ΡΠΎ Π·Π±ΡΠ»ΡΡΠ΅Π½Π½Ρ ΡΡΠ²Π½Ρ ΠΏΠ΅ΡΠ΅Π³ΡΡΠ²Ρ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΡ ΠΌΠΎΠΆΠ΅ ΠΏΡΠΈΠ·Π²ΠΎΠ΄ΠΈΡΠΈ Π΄ΠΎ Π·Π½Π°ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠ΄Π²ΠΈΡΠ΅Π½Π½Ρ ΠΊΠΎΠ΅ΡΡΡΡΡΠ½ΡΠ° ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠΎΠΏΡΠΎΠ²ΡΠ΄Π½ΠΎΡΡΡ, ΡΠΊΠ΅ Ρ ΡΠΈΠΌ ΡΡΡΡΡΠ²ΡΡΠΈΠΌ, ΡΠΈΠΌ Π²ΠΈΡΠ΅ ΡΠ°ΡΡΠΊΠ° Π½Π°ΠΏΠΎΠ²Π½ΡΠ²Π°ΡΠ° Ρ Π½ΠΈΠΆΡΠ΅ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠΉΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»Ρ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΠΎ ΡΡΠ²Π΅Π½Ρ ΠΏΠ΅ΡΠ΅Π³ΡΡΠ²Ρ ΡΠΎΠ·ΠΏΠ»Π°Π²Ρ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΡ Π²ΡΠ΄Π½ΠΎΡΠ½ΠΎ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠΈ ΠΉΠΎΠ³ΠΎ ΠΏΠ»Π°Π²Π»Π΅Π½Π½Ρ Ρ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠΌ, ΡΠΊΠΈΠΉ ΠΌΠΎΠΆΠ΅ Π±ΡΡΠΈ ΠΏΠΎΠΊΠ»Π°Π΄Π΅Π½ΠΈΠΉ Π² ΠΎΡΠ½ΠΎΠ²Ρ ΡΡΠ²ΠΎΡΠ΅Π½Π½Ρ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΠ½ΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΡΠΉΠ½ΠΈΡ
ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ² ΡΠ· Π·Π°Π΄Π°Π½ΠΈΠΌΠΈ ΡΠ΅ΠΏΠ»ΠΎΡΡΠ·ΠΈΡΠ½ΠΈΠΌΠΈ Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΡΠΌ
Establishment of Regularities of Influence on the Specific Heat Capacity and Thermal Diffusivity of Polymer Nanocomposites of A Complex of Defining Parameters
This paper reports a series of experimental studies to establish regularities of the integrated effect exerted on the specific heat capacity of polymer nanocomposites by such factors as the temperature regime of their production, the value of the mass fraction of the filler, and the temperature of the composite material. The studies were conducted for nanocomposites based on polypropylene filled with carbon nanotubes. When obtaining composites, the method of mixing the components in the melt of the polymer was used. During the studies, the temperature of nanocomposites varied from 295 to 455 K, the mass fraction of the filler β from 0.3 to 10 %. The basic parameter of the technological mode for obtaining composite materials, the value of overheating the polymer melt relative to its melting point, varied in the range of 10...75 K.
It is shown that the temperature dependence of the specific heat capacity of the considered composites is sensitive to changes in the overheating of the polymer melt only in the region maximum values of the specific heat capacity. Concentration dependences of the specific heat capacity of the considered nanocomposites at different values of their temperature and the level of overheating of the polymer melt have been built.
The studies have been carried out to identify the effects of the influence of the above parameters on the coefficient of thermal diffusivity of nanocomposites. It has been established, in particular, that an increase in the level of overheating the polymer could lead to a very significant increase in the coefficient of thermal diffusivity, which is all the more significant the higher the proportion of filler and the lower the temperature of the composite material. It is shown that the level of overheating the polymer melt relative to its melting point is a parameter that can be used as the basis for the creation of polymer composite materials with specified thermophysical properties