Study of the Interaction at the Interface of Core Reinforcing Fillers and the Polymer Matrix of 3D Carbon Fiber «Grani»

We present a technological approach to assembling multidimensional structures comprising rods of circular cross section obtained from synthetic fiber by pultrusion which provides implementation of various reinforcement schemes to produce composite materials with the desired properties of spatial anisotropy. The specificity of this technique consists in dividing operations of pultrusion formation of carbon fiber microstructure in the bulk of reinforcing rod and subsequent superposing of the reinforcing cage with a polymeric composition forming the matrix of the material. Thus, the initial wetting of filament surfaces and their engaging into interface formation occurs in contact with a functional polymer used for rod manufacture. Current technology of the reinforcing rod manufacture is based on the use of aqueous solution of polyvinyl alcohol. We demonstrate the possibility of using low-viscosity epoxy compounds as an alternative to polyvinyl alcohol (PVA). The problems attributed to the choice of a binder responsible for interaction at the interface between the matrix and surface of the rod and the impact of different types of polymers used for rod manufacture on the matrix properties are considered. Practical significance of the study consists in analysis of the possibility of improving the strength properties of the composite with allowance for the technological potentiality of the method of assembling the reinforcing rod structures.

объемно-армированный полимерный композиционный материал, трехмерно-армированный углепластик, взаимодействие на границе раздела фаз, микроструктура углепластика, реализация прочности, стержневой армирующий наполнитель, bulk-reinforced polymer composite material, 3D reinforced carbon plastic, interaction at the interface, microstructure of the carbon fiber, strength implementation, rod reinforcing filler

1. Tong L., Mouritz A. P., Bannister M. K. 3D Fibre Reinforced Polymer Composites. - Oxford: Elsevier Science Ltd, 2002. P. 241.

2. Stig Fredrik. 3D-woven Reinforcement in Composites: PhD. - Stockholm, 2012. - 38 p.

3. Гареев А. Р., Малинкин Д. А., Колесников С. А. Исследование структурных дефектов 3D углепластика «Грани» / Заводская лаборатория. Диагностика материалов. 2014. Т. 80. № 12. С. 23.

4. Торнопольский Ю. М., Жигун И. Г., Поляков В. А. Пространственно-армированные композиционные материалы. - М.: Машиностроение, 1987. - 224 с.

5. Инфракрасные спектры поглощения полимеров и вспомогательных / Под ред. В. М. Чулановского. - Ленинградское отделение «Химия», 1969. - 356 с.

6. Краузе С. Полимерные смеси. Т. 1 / Под ред. Д. Пола, С. Ньюмена. - М.: Мир, 1981. - 552 с.

7. Кербер М. Л., Головкин Г. С., Горбаткина Ю. А. и др. Полимерные композиционные материалы. - СПб.: изд. «Профессия», 2008. - 460 с.