박희영, 2023 - Google Patents
Fabrication of a poly (L-lactide-co-Ɛ-decalactone) bio-foam with hierarchical microcellular structure for broadband sound absorption박희영, 2023
View PDF- Document ID
- 14188844299118928634
- Author
- 박희영
- Publication year
External Links
Snippet
In order to improve the low-mid frequency acoustic absorption properties of porous sound absorption materials, it is known that the formation of a hierarchical pore structure as well as the excellent damping properties of the material itself are the critical factors that should be …
- 238000010521 absorption reaction 0 title abstract description 15
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/032—Impregnation of a formed object with a gas
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