Thermally insulating magnesium borate foams with controllable structures

Liu, Jingfei; Li, Yuanbing; Yin, Bo; Li, Shujing; Fan, Yibo; Li, Jialu

doi:10.1016/j.ceramint.2022.05.229

Cited by 10 publications

(1 citation statement)

References 17 publications

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“…The overall thermal conductivity of the PVA 6 -MF 16 aerogel at 30 °C reached 0.07127 W/(m·K), and the radial and tangential thermal conductivity were 0.07348 and 0.06726 W/(m·K), respectively, with little difference between them (Table S6). − The schematic diagram of the radial and tangential heat conduction of the PVA 6 -MF 16 composite aerogel at 30 °C and the microscopic morphologies of the radial and tangential cross sections are shown in Figures a and S1, respectively. The PVA 6 -MF 16 composite aerogel was heated on a heating table for 30 min, and the temperature changes on the upper surface of the aerogel were recorded with an infrared imager (Figure b).…”

Section: Resultsmentioning

confidence: 99%

Water-Resistant and Thermal Insulation Aerogels Based on Polymers toward a Room-Temperature Phosphorescent Sensor

Gao,

Hu,

et al. 2024

ACS Appl. Opt. Mater.

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Exploring the applicability of next-generation pure organic room-temperature phosphorescent (RTP) materials has become a research focus in recent years. Herein, a simple strategy for preparing a long-lived polymer aerogel temperature sensor with an ordered structure as well as thermal insulation was presented. Based on the noncovalent interactions between poly(vinyl alcohol) (PVA) and melamine formaldehyde (MF), a composite aerogel (PVA-MF) with excellent thermal stability, extremely low thermal conductivity, outstanding fire safety, and favorable mechanical strength was constructed. At the same time, PVA-MF aerogels doped with a series of organic phosphorescent small molecules exhibit stable multicolor long-lasting afterglow. In addition, the biphenyl 4-carboxylic acid (BPA)-doped PVA-MF aerogel also showed enduring water-resistant stability. Surprisingly, after repeated heating and cooling cycles, the on–off recording via a reversible temperature response of a continuous RTP signal was realized. Therefore, the aerogel with phosphorescent self-monitoring and tracer function not only promoted the development of aerogel phosphorescent materials but also expanded the application of RTP materials in temperature sensors.

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