期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 61, 期 32, 页码 11790-11803出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.2c01724
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资金
- Ministry of Science and Technology, Taiwan [MOST 109-2923-E- 011-007-MY2, MOST 109-2622-8-011-009-TE 4, MOST 111- 2622-8-011-004-TE 4, MOST 109-2221-E-011-148-MY3]
Nanocellular foam has attracted much interest due to its superior physical and mechanical properties compared to microcellular foams. The hot-press foaming process shows potential in producing large and flat nanocellular foam samples, with larger cell size, higher expansion ratio, and higher aspect ratio compared to the hot-bath foaming method.
Nanocellular foam has raised much interest because its physical and mechanical properties are superior to those of microcellular foams. The hot-bath foaming method has been common on a laboratory scale due to its faster heat transfer rate. However, because of the nature of the free foaming process, the hot-bath foaming method may not be capable of making large, flat samples. This study uses the hot-press process to produce nanocellular foam. The results of hot-bath and hot-press foaming methods were compared with theoretical simulations. Both processes were able to produce cell sizes lower than 40 nm. The hot-press foamed samples exhibited larger cell size, higher expansion ratio, and higher aspect ratio (AR) than the hot-bath foamed samples. The hot-press foaming process demonstrated that it has the potential to create sizable and flat nanocellular samples. The AR of cells foamed in the hot-press method was as high as 1.93, creating a new manufacturing method for anisotropic nanocellular foam with a cell size of less than 100 nm.
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