期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 76, 期 -, 页码 45-51出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2012.12.018
关键词
Microcellular phenolic foam; Particle-reinforced composites; Porosity; Thermal properties; Mechanical properties
资金
- Chonbuk National University
- National Research Foundation of Korea (NRF)
- Korean government (MEST) [2011-0010156]
- Leading Foreign Research Institute Recruitment Program through the National Research Foundation of Korea
- Ministry of Education, Science and Technology [2011-0030065]
- Basic Defense Research Program of Development of Sensor Fibers for the Smart Skin
- Agency of Defense Development of Korea [ADD-11-01-07-16]
- National Research Foundation of Korea [2011-0010156] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Polymer foams are used for thermal insulation and weight reduction in multiple fields, such as buildings, automobiles, and LNG containment systems. Phenolic foams are preferred as a thermal insulator due to a lower flammability and lower gas generation than other polymeric insulation foams. For conventional foaming methods, the extensive time to fabricate large volumes and environmental regulations limit the use of blowing agents. In this study, new foaming methods for an activated carbon (AC) reinforced microcellular phenolic foam were developed using microwaves instead of the blowing agents. Both thermal and mechanical properties were measured to characterize the foaming conditions, including the aging time of the resin before microwave foaming and the weight percent of the AC. We found that the microcellular phenolic foams fabricated under these optimum foaming conditions had low thermal conductivities and low densities that are suitable for insulating foams. (C) 2013 Elsevier Ltd. All rights reserved.
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