Insulation element, expanded insulation element, use of same and method for insulation
The invention relates to an insulation element, in particular for the acoustic insulation of an opening and/or of a cavity in a vehicle or building, having a carrier element and an expendable material. The carrier element has a plurality of through-holes, wherein only one surface of the carrier element is covered at least partially with expandable material, and the expandable material at least partially fills the through-holes. The invention relates furthermore to an insulation element produced therefrom, the use of the same and a method for the acoustic insulation and/or reinforcement of an opening or a cavity in a land, air or water vehicle or in a building.
1. An expandable insulation element for the acoustic insulation of an opening and/or of a cavity in a vehicle or building, comprising: a carrier element and an expandable material, wherein the carrier element has a plurality of through-holes, wherein, in a non-expanded state, only one surface of the carrier element is at least partially covered with expandable material, and the expandable material at least partially fills the through-holes, wherein, in an expanded state, the expandable material is expanded onto peripheral areas of another surface of the carrier element opposite from the surface of the carrier element which is at least partially covered with expandable material, wherein 50% to 95% of the other surface is covered with expanded material.
2. The expandable insulation element according to claim 1 , wherein the expandable material extends in the through-holes substantially to the free surface of the carrier element.
3. The expandable insulation element according to claim 1 , wherein the areal fraction of the through-holes amounts to 20% to 70% of the total area of the carrier element.
4. The expandable insulation element according to claim 1 , wherein the through-holes have a round shape.
5. The expandable insulation element according to claim 1 , wherein the carrier element has a marginal area with reduced cross section.
6. The insulation element according to claim 1 , wherein the carrier element is plate-shaped.
7. The expandable insulation element according to claim 1 , wherein the one surface of the carrier element is covered with a closed layer, and the other opposite surface of the carrier element is covered at least partially with expanded material in areas close to the periphery of the through-holes.
8. The expandable insulation element according to claim 1 , wherein, on the completely covered surface of the carrier element, recesses are formed above the through-holes in the expanded state.
9. The use of an insulation element according to claim 1 for the acoustic insulation and/or reinforcement of an opening and/or of a cavity of a land, air or water vehicle, and/or of a cavity of a building.
10. A method for the acoustic insulation and/or reinforcement of an opening or of a cavity, wherein an insulation element according to claim 1 is introduced into the opening or the cavity, and subsequently the expandable material is expanded.
11. The expandable insulation element of claim 1 , wherein 50% to 90% of the other surface is covered with expanded material.
12. The expandable insulation element of claim 1 , wherein 60% to 75% of the other surface is covered with expanded material.
13. The expandable insulation element of claim 1 , wherein the areal fraction of the through-holes amounts to 30% to 60% of the total area of the carrier element.
14. The expandable insulation element of claim 1 , wherein the areal fraction of the through-holes amounts to 30% to 50% the total area of the carrier element.
15. The expandable insulation element of claim 1 wherein the areal fraction of the through-holes amounts to 30% to 40% the total area of the carrier element.
16. The expandable insulation element according to claim 1 , wherein the through-holes have an elliptic shape.
17. The expandable insulation element according to claim 1 , wherein the carrier member is an integral, planar member and the surface and the other surface of the carrier member are exterior surfaces of the carrier member.