Mechanical and processing requirements for a shock mitigating phenolic foam

Autor:	Joseph F. Meier, Girard B. Rosenblatt, Morris A. Mendelsohn, George E. Rudd
Rok vydání:	1979
Předmět:	Permeability (earth sciences) Materials science Compressive strength Polymers and Plastics Pulmonary surfactant Blowing agent Materials Chemistry General Chemistry Fluorocarbon Composite material Surfaces Coatings and Films Catalysis
Zdroj:	Journal of Applied Polymer Science. 23:325-331
ISSN:	1097-4628 0021-8995
DOI:	10.1002/app.1979.070230203
Popis:	A high load-bearing shock-mitigating phenolic foam was developed to meet specific compression-deflection and gas permeability requirements. It was required that the foam display an almost constant compressive stress within the limits of 50–68 psi at strains ranging from 10% to 60%. Furthermore, the foam had to possess a highly open-celled structure so that its resistance to gas flow would be minimal. These properties were obtained from a chemical formulation utilizing a combination of two phenolic resins, a phosphoric-sulfuric acid catalyst system, a surfactant combination that included both a hydrophilic and a lipophilic surfactant, and a fluorocarbon blowing agent.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a8a4e69d8204ce9ed4acf67ae8ea2e4a https://doi.org/10.1002/app.1979.070230203 Zobrazit plný text záznamu Plný text