BR9806680A - Process for obtaining a flexible mat for absorbing electromagnetic radiation in the 2-20 ghz range based on polyurethanes added with ferrites, fibers and / or carbon particles - Google Patents
Process for obtaining a flexible mat for absorbing electromagnetic radiation in the 2-20 ghz range based on polyurethanes added with ferrites, fibers and / or carbon particlesInfo
- Publication number
- BR9806680A BR9806680A BR9806680A BR9806680A BR9806680A BR 9806680 A BR9806680 A BR 9806680A BR 9806680 A BR9806680 A BR 9806680A BR 9806680 A BR9806680 A BR 9806680A BR 9806680 A BR9806680 A BR 9806680A
- Authority
- BR
- Brazil
- Prior art keywords
- ferrites
- obtaining
- electromagnetic radiation
- fibers
- carbon particles
- Prior art date
Links
Abstract
"PROCESSO PARA OBTENçãO DE MANTA FLEXìVEL PARA ABSORçãO DE RADIAçãO ELETROMAGNéTICA NA FAIXA DE 2 - 20 GHz à BASE DE POLIURETANOS ADITADOS COM FERRITAS, FIBRAS E/OU PARTìCULAS DE CARBONO". Patente de invenção de um processo para obtenção de mantas absorvedoras de radiação eletromagnética utilizando como base polímeros poliuretânicos. Mantas poliméricas à base de resinas de poliuretano são confeccionadas sobre um filme de polietileno e celulose. Durante o processo de cura da resina são pulverizadas partículas de carbono, fibras de carbono e/ou ferritas. O processo de secagem ocorre em temperatura ambiente, ou em estufa com temperatura controlada. O produto final é obtido após a cura e descolagem do filme de polietileno e celulose. O potencial de aplicação destas mantas como blindagens eletromagnéticas atinge os setores aeroespacial, aeronáutico, de telecomunicações e áreas afins."PROCESS FOR OBTAINING A FLEXIBLE BLANKET FOR ABSORPTION OF ELECTROMAGNETIC RADIATION IN THE 2 - 20 GHz TRACK BASED ON POLYURETHANES ADDED WITH FERRITES, FIBERS AND / OR CARBON PARTICLES". Patent for the invention of a process for obtaining electromagnetic radiation absorbing blankets using polyurethane polymers as a base. Polymeric blankets based on polyurethane resins are made on a polyethylene and cellulose film. During the resin curing process, carbon particles, carbon fibers and / or ferrites are sprayed. The drying process takes place at room temperature, or in an oven at a controlled temperature. The final product is obtained after curing and peeling of the polyethylene and cellulose film. The potential for applying these blankets as electromagnetic shielding reaches the aerospace, aeronautics, telecommunications and related areas.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9806680A BR9806680B1 (en) | 1999-01-05 | 1999-01-05 | process for obtaining flexible blanket for absorption of electromagnetic radiation in the range of 2-20 ghz Based on polyurethanes added with ferrite, fiber and / or carbon particles. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9806680A BR9806680B1 (en) | 1999-01-05 | 1999-01-05 | process for obtaining flexible blanket for absorption of electromagnetic radiation in the range of 2-20 ghz Based on polyurethanes added with ferrite, fiber and / or carbon particles. |
Publications (2)
Publication Number | Publication Date |
---|---|
BR9806680A true BR9806680A (en) | 2000-10-10 |
BR9806680B1 BR9806680B1 (en) | 2009-05-05 |
Family
ID=4071554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9806680A BR9806680B1 (en) | 1999-01-05 | 1999-01-05 | process for obtaining flexible blanket for absorption of electromagnetic radiation in the range of 2-20 ghz Based on polyurethanes added with ferrite, fiber and / or carbon particles. |
Country Status (1)
Country | Link |
---|---|
BR (1) | BR9806680B1 (en) |
-
1999
- 1999-01-05 BR BR9806680A patent/BR9806680B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR9806680B1 (en) | 2009-05-05 |
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