| 000 | 04541nlm1a2200625 4500 | ||
|---|---|---|---|
| 001 | 659580 | ||
| 005 | 20231030041634.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\28195 | ||
| 035 | _aRU\TPU\network\24900 | ||
| 090 | _a659580 | ||
| 100 | _a20190304a2018 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aImpact toughness of nanocomposite materials filled with fullerene c60particles _fA. V. Buketov [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 330 | _aThe dynamics of fracture of epoxy composites on various loadings of fullerene C60 particles was investigated. Epoxy diane oligomer ED-20 was employed as the basic bonding agent in composite formation. It is characterized by its ability of providing high adhesion and cohesive strengths, easy processibility, as well as low coating shrinkage on deposition onto long-length surfaces of complex profile parts. Polyethylene polyamine (PEPA) was used for cross-linking of the epoxy composites, which made it possible to carry out the curing process at room temperature. With the use of IR spectral analysis, the nucleation of new links at the polymer–filler interface was determined, which was implied to result from the improved chemical activity of the dispersed particle surface. It is confirmed by the shift of the absorption bands as well as by the increase in the transmission rate intensity, half-width, and in the relative area of absorption bands. The loading of nanoparticles into the epoxy binder at the optimal content of q = 0.025 parts by weight (pts.wt.) allows one to improve the impact toughness by 2.5 times in contrast with the neat epoxy matrix. With the use of an RKP-300 impact pendulum machine for high-rate bending, the characteristic fracture stages of epoxy nanocomposites were revealed in regard to: i) crack initiation, ii) crack growth, and iii) the fracture point. The use of the VUHI-CHARPY data processing software made it possible to determine the components of fracture energy of the corresponding failure stages. The fracture surface of the nanocomposite materials was investigated with the use of optical and scanning electron microscopy (SEM). By the analysis of SEM micrographs of the fracture surface the homogeneous topology at the nanoscale formed through the action of the particles as a stopper system was revealed. The latter provides the retardation of microcrack propagation processes in the material bulk. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tComposites: Mechanics, Computations, Applications: An International Journal | ||
| 463 |
_tVol. 9, iss. 2 _v[P. 141-161] _d2018 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _afullerene C60 | |
| 610 | 1 | _aepoxy composite | |
| 610 | 1 | _aIR-spectral analysis | |
| 610 | 1 | _aimpact toughness | |
| 610 | 1 | _aoptical microscopy | |
| 610 | 1 | _ascanning electron microscopy | |
| 610 | 1 | _ascanning electron microscopy | |
| 610 | 1 | _afracture | |
| 610 | 1 | _acrack propagation | |
| 610 | 1 | _acoating | |
| 610 | 1 | _adeck machinery | |
| 610 | 1 | _avessel shafting | |
| 610 | 1 | _aфуллерены | |
| 610 | 1 | _aэпоксидные композиты | |
| 610 | 1 | _aИК-спектрометрический метод | |
| 610 | 1 | _aударная вязкость | |
| 610 | 1 | _aоптическая микроскопия | |
| 610 | 1 | _aтрещины | |
| 610 | 1 | _aпереломы | |
| 701 | 1 |
_aBuketov _bA. V. _gAndrey Viktorovich |
|
| 701 | 1 |
_aSapronov _bA. A. _gAleksandr Aleksandrovich |
|
| 701 | 1 |
_aBuketova _bN. N. _gNataljya |
|
| 701 | 1 |
_aMykola _bB. _gBrailo |
|
| 701 | 1 |
_aMarushchak _bP. O. _gPavel Orestovich |
|
| 701 | 1 |
_aPanin _bS. V. _cspecialist in the field of material science _cProfessor of Tomsk Polytechnic University, Doctor of technical sciences _f1971- _gSergey Viktorovich _2stltpush _3(RuTPU)RU\TPU\pers\32910 |
|
| 701 | 1 |
_aAmelin _bM. Yu. |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа новых производственных технологий _bОтделение материаловедения _h7871 _2stltpush _3(RuTPU)RU\TPU\col\23508 |
| 801 | 2 |
_aRU _b63413507 _c20190312 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1615/CompMechComputApplIntJ.v9.i2.30 | |
| 942 | _cCF | ||