Aerogels are ultra-light, insulative, porous materials that have a wide variety of applications. The aim of this study was to synthesize resorcinol/formaldehyde (RF) cross-linked silica aerogels in one pot by acid catalysis. A thermal constant analyzer measured the thermal conductivity of the RF/SiO2 aerogels using the transient plane source (TPS) method. Results showed that although the RF/SiO2 aerogels had a lower density, their thermal conductivities resembled those ...
Author(s): Ai Du, Bin Zhou, Guangming Wu, Jun Shen, Ke Chen, Xiurong Zhu, Zhihao Bao, Zhihua Zhang
Thermally conductive pressure-sensitive adhesives (TC-PSA) are used in electronic devices and industrial applications. This paper examined how particle size, shape, and the addition of a coupling agent (GSP) affected the thermal conductivity of TC-PSA. A thermophysical properties analyzer measured the thermal conductivity of the particle-filled polymer using the transient plane source (TPS) method. Results showed that the thermal conductivity of the particles increased with diameter and aspect ratio, and the ...
Author(s): Jin Kon Kim, Jong Won Kim, Min Seok Song, Myung Im Kim
This paper examined the synthesis of hyperbranched polymers (HBPs) and how their hydroxyl end groups help form networks in tannin-based foams. A thermal analyzer (TPS) measured the thermal conductivity of the foam samples using the transient plane source (TPS) method. Results showed that modified foams retained their thermal insulation properties even with the addition of oligomeric precursors. This gives good indication that the addition of hydroxyl-terminated oligomeric precursors to tannin ...
Author(s): Alain Celzard, Antonio Pizzi, D. Le Nouen, H. A. Essawy, K. Rode, L. Delmotte, V. Fierro, X. Li
Researchers have developed an innovative processing route for producing microcellular cordierite ceramics within a three-step method. A) constructing ceramic-filled foams by heating a mixture of polysiloxane, expandable microspheres, talc, and alumina B) cross-linking the foamed body, and C) with the use of sintering, convert the body into microcellular cordierite ceramics....
Author(s): Hai-Doo Kim, In-Hyuck Song, Mi-Jin Kim, Young-Wook Kim
As technology advances, the need for inexpensive polymer-based composites possessing high thermal conductive properties has become more and more important. Previously, the addition of thermal conductive particles, such as alumina, boron nitride and alumina nitride, has caused an increase in the thermal conductivity of the composite. Although an increase in thermal conductivity is present, an increase in fabrication costs is also experienced as a higher quantity of particles is required, ...
Author(s): Chen-Chi M. Ma, Chih-Chun Teng, Chu-Hua Lu, Kuo-Chan Chiou, Min-Chien Hsiao, Ming-Yu Yen, Shie-Heng Lee, Shin-Yi Yang, Tzong-Ming Lee
