3D Printed Polyimide/Silica Composite Aerogels for Customizable Thermal Insulation from −50 °C to 1300 °C

IF 4 2区化学 Q2 POLYMER SCIENCE Chinese Journal of Polymer Science Pub Date : 2024-05-17 DOI:10.1007/s10118-024-3130-8

Dingyi Yu, Tiantian Xue, Zhuocheng Ma, Zaiyin Hu, Lijuan Long, Yue-E Miao, Wei Fan, Tianxi Liu

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Abstract

Aerogels are widely used as thermal insulation materials because of their high porosity and low bulk density. However, the insulation performance of aerogels is limited to a narrow temperature range. Besides, the preparation of aerogel materials with precisely controlled and complex architectures is still challenging. Here, we report 3D printed polyimide/silica aerogel particle (PI/SAP) composite aerogels for thermal insulation in a wide range of temperature with customized applications. The printability and shape fidelity of 3D printed composite aerogels is improved by adding hydrophilic SAP as a rheology modifier. The resulting PI/SAP composite aerogel exhibits excellent flame-retardant properties and thermal insulation from −50 °C to 1300 °C. Moreover, the PI/SAP composite aerogel with customized shape can be applied for battery insulation at subzero temperatures, promising to be used as customizable and stable insulating materials in a variety of complex and extreme applications.

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三维打印聚酰亚胺/二氧化硅复合气凝胶，可在 -50 °C 至 1300 °C 温度范围内定制隔热性能

气凝胶具有孔隙率高、体积密度低的特点，因此被广泛用作隔热材料。然而，气凝胶的隔热性能仅限于较窄的温度范围。此外，制备具有精确控制和复杂结构的气凝胶材料仍然具有挑战性。在此，我们报告了三维打印聚酰亚胺/二氧化硅气凝胶颗粒（PI/SAP）复合气凝胶在宽温度范围内的隔热性能，以及定制应用。通过添加亲水性 SAP 作为流变改性剂，三维打印复合气凝胶的可打印性和形状保真度得到了改善。由此制成的 PI/SAP 复合气凝胶具有优异的阻燃性能，在 -50 °C 至 1300 °C 温度范围内具有良好的隔热性能。此外，具有定制形状的 PI/SAP 复合气凝胶还可用于零下温度下的电池绝缘，有望在各种复杂和极端的应用中用作可定制的稳定绝缘材料。

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来源期刊

Chinese Journal of Polymer Science 化学-高分子科学

CiteScore

7.10

自引率

11.60%

发文量

218

审稿时长

6.0 months

期刊介绍： Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985. CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.