摘要:
A filter material for separating liquids from fluid flows comprises a wet- or dry-laid nonwoven, woven fabric, or an open-cell foam. The two sides of the filter material are impregnated with two different binders in such a way that one side of the filter material has a higher amount of surface energy and thus a shorter drop sink-in time than the opposite side.
摘要:
The invention relates to a single or multi-layer filter material, comprising at least one layer made of cellulose, glass fiber, synthetic fiber, or a mixture thereof, and saturated with a binding agent made of an epoxy resin and a curing agent. The hardening agent comprises a first hardener cross-linking at a lower temperature, and a second hardener cross-linking at a higher temperature, so that the epoxy resin can be hardened stepwise depending on the temperature.
摘要:
The invention relates to an abrasive support, to an abrasive article comprising such a support, to the method for producing the same, and to the use of the abrasive article. According to at least one embodiment, the abrasive support comprises an impregnated support material based on synthetic fibers. The impregnated support material has at least on one side having a surface roughness R z of 100 μm to 500 μm, and having an R max of 250 μm to 600 μm. The support has an air permeability of at most 20 l/m 2 s.