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 particles

Info

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
Application number
BR9806680A
Other languages
Portuguese (pt)
Other versions
BR9806680B1 (en
Inventor
Antonio Carlos Da Cunha Migliano
Josiane De Castro Dias
Silva Fabio Santos Da
Inacio Malmonge Martin
Mirabel Cerqueira Rezende
Original Assignee
Tecnico Aeroespacial Cta Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tecnico Aeroespacial Cta Inst filed Critical Tecnico Aeroespacial Cta Inst
Priority to BR9806680A priority Critical patent/BR9806680B1/en
Publication of BR9806680A publication Critical patent/BR9806680A/en
Publication of BR9806680B1 publication Critical patent/BR9806680B1/en

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.

BR9806680A 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. BR9806680B1 (en)

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)

Also Published As

Publication number Publication date
BR9806680B1 (en) 2009-05-05

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