journal article·2020-01-24

Colorless Transparent Melamine–Formaldehyde Aerogels for Thermal Insulation

Yuki Nakanishi, Yosuke Hara, Wataru Sakuma, Tsuguyuki Saito, Kazuki Nakanishi, Kazuyoshi Kanamori

ACS Applied Nano Materials· Volume 3· Issue 1
Publisher page

Abstract

Aerogels have many unique properties such as low density and low thermal conductivity, and, in particular, transparent silica aerogels are attractive for thermal insulating windows. Practical applications of silica aerogels, however, have been limited because of their low mechanical strength, and it is still challenging to synthesize transparent and mechanically strong aerogels. Here, we report colorless transparent melamine–formaldehyde (MF) aerogels prepared via a nonaqueous synthetic strategy. The obtained transparent MF aerogel with a density of 0.18 g cm–3 shows significantly higher mechanical strength and a lower thermal conductivity of ca. 13 mW m–1 K–1 compared to conventional silica aerogels with similar density.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Aerogels and thermal insulation · Silicone and Siloxane Chemistry · Mesoporous Materials and Catalysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan

Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan

Institute of Materials and Systems for Sustainability, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan

Institute for Integrated Cell-Material Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan

Funding

Japan Society for the Promotion of Science

References (26)

Show source-provided references
1. 10.1038/127741a010.1038/127741a0 ↗
2. 10.1016/S0022-3093(98)00135-510.1016/S0022-3093(98)00135-5 ↗
3. 10.1002/(SICI)1521-3773(19980202)37:1/2<22::AID-ANIE22>3.0.CO;2-I10.1002/(SICI)1521-3773(19980202)37:1/2<22::AID-ANIE22>3.0.CO;2-I ↗
4. 10.1016/j.jnoncrysol.2013.10.01710.1016/j.jnoncrysol.2013.10.017 ↗
5. 10.1016/0022-3093(94)90206-210.1016/0022-3093(94)90206-2 ↗
6. 10.2109/jcersj2.119.1610.2109/jcersj2.119.16 ↗
7. 10.1016/j.enbuild.2010.12.01210.1016/j.enbuild.2010.12.012 ↗
8. 10.1016/j.jnoncrysol.2004.06.04710.1016/j.jnoncrysol.2004.06.047 ↗
9. 10.1039/C0CS00068J10.1039/C0CS00068J ↗
10. 10.1002/chem.20160368010.1002/chem.201603680 ↗
11. 10.1021/acsmacrolett.7b0001410.1021/acsmacrolett.7b00014 ↗
12. 10.1021/la400739410.1021/la4007394 ↗
13. 10.1002/anie.20140512310.1002/anie.201405123 ↗
14. 10.1021/acs.chemmater.5b0361010.1021/acs.chemmater.5b03610 ↗
15. 10.1007/BF0113904410.1007/BF01139044 ↗
16. 10.1557/PROC-180-79110.1557/PROC-180-791 ↗
17. 10.1016/S0022-3093(05)80436-310.1016/S0022-3093(05)80436-3 ↗
18. 10.1126/science.255.5047.97110.1126/science.255.5047.971 ↗
19. 10.1007/s10971-014-3593-010.1007/s10971-014-3593-0 ↗
20. 10.1007/s10934-017-0371-810.1007/s10934-017-0371-8 ↗
21. 10.1021/acsami.7b0609610.1021/acsami.7b06096 ↗
22. Blank W. J. · J. Coat. Technol. · 1979 · 51 · 61
23. 10.1002/adma.20060245710.1002/adma.200602457 ↗
24. 10.1103/PhysRevApplied.11.02404410.1103/PhysRevApplied.11.024044 ↗
25. 10.1016/j.micromeso.2013.08.02910.1016/j.micromeso.2013.08.029 ↗
26. 10.1039/C3TA15094A10.1039/C3TA15094A ↗