摘要:
Storage-stable reactive inorganic clusters and a process for preparing such storage-stable reactive inorganic clusters (e.g., silica structures) having, for example, reactive amino groups. The storage-stable reactive inorganic clusters may be used as a curing agent for thermosetting resin compositions such as epoxy resins.
摘要:
Embodiments of the present disclosure include a thermoset cross-linked network and a method of producing the thermoset cross-linked network from a reaction product of a curable epoxy system in a liquid phase and cross-linked reactive polymer microparticles in a solid phase. For the various embodiments, the cross-linked reactive polymer microparticles have a cross-link density and reactive groups that covalently react with the curable epoxy system to provide the thermoset cross-linked network in a single contiguous phase having a topological heterogeneity.
摘要:
A system for connecting two ferrules of an axial compressor case. A ferrule includes a female flange, while the other ferrule includes a male flange. Both the female flange as well as the male flange are substantially annular and include a proximal face intended to be integral with the ferrule, and a distal face. The male flange is intended to be introduced into a space bound by an axial extension of the female flange. The system further includes a trim intended to be introduced behind the male flange into the space and clamped between the proximal face of the male flange and a surface of the extension substantially opposite in order to space them apart and thus clamp the distal faces of both flanges one against the other.
摘要:
The invention relates to a method for preparing a composite material comprising a polymeric matrix and a filler consisting in ion exchange inorganic particles, comprising a step for synthesis in situ of said particles within the polymeric matrix.
摘要:
A reactive thermosettable resin composition including (a) at least one thermosetting resin; (b) at least one curing agent, and (c) optionally, at least one catalyst; wherein the curing agent (b) comprises a reactive inorganic cluster; and wherein the clusters are storage-stable inorganic clusters with reactive functional groups, such as amino groups; a process for preparing a thermoset product from the thermosettable composition. A composition of the reactive clusters as a curing agent and a thermosetting resin may be used to prepare thermoset products with improved thermo-mechanical behavior.
摘要:
Storage-stable reactive inorganic clusters and a process for preparing such storage-stable reactive inorganic clusters (e.g., silica structures) having, for example, reactive amino groups. The storage-stable reactive inorganic clusters may be used as a curing agent for thermosetting resin compositions such as epoxy resins.
摘要:
The invention relates to a method for preparing a composite material comprising a polymeric matrix and a filler consisting in ion exchange inorganic particles, comprising a step for synthesis in situ of said particles within the polymeric matrix.
摘要:
A reactive thermosettable resin composition including (a) at least one thermosetting resin; (b) at least one curing agent, and (c) optionally, at least one catalyst; wherein the curing agent (b) comprises a reactive inorganic cluster; and wherein the clusters are storage-stable inorganic clusters with reactive functional groups, such as amino groups; a process for preparing a thermoset product from the thermosettable composition. A composition of the reactive clusters as a curing agent and a thermosetting resin may be used to prepare thermoset products with improved thermo-mechanical behavior.
摘要:
The invention concerns a novel type of turbomachine.According to the invention, the stator of the turbomachine comprises a plurality P of profiled members forming stiffeners arranged on the blade stage while being distributed uniformly at its periphery and individually between two consecutive blades, the stiffeners being fixed to the internal and external ferrules of the stator in order to uniformly increase the axial and radial stiffness of the stator in normal operation of the turbomachine and to allow to the internal ferrules to have.The invention makes it possible to reduce the axial sizing of the turbomachine, and consequently its mass.Application to aircraft engines, such as jet engines.
摘要:
This invention relates to a system for connecting two ferrules of an axial compressor case. A ferrule comprises a female flange, while the other ferrule comprises a male flange. Both the female flange as well as the male flange are substantially annular and comprise a proximal face intended to be integral with the ferrule, and a distal face. The male flange is intended to be introduced into a space bound by an axial extension of the female flange. The system further comprises a trim intended to be introduced behind the male flange into the space and clamped between the proximal face of the male flange and a surface of the extension substantially opposite in order to space them apart and thus clamp the distal faces of both flanges one against the other.