http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Shunxi Song,Yujie Shi,Jiaojun Tan,Zeshi Wu,Meiyun Zhang,Sheng Qiang,Jingyi Nie,Haitang Liu 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.109 No.-
Polyimide sponges have bright prospects in the weight reduction, heat insulation, and sound absorptionequipment of aerospace, navigation, and other area due to their unique three-dimensional cellular structureand outstanding comprehensive performance. However, most polyimide sponges suffered from longand complex fabrication processes. Herein, an efficient and scalable approach, i.e. water-based foamforming, was proposed to fabricate ultralight and porous polyimide/aramid sponges (PASG). Attributedto the bubble-template nature of foam-forming, PASGs exhibit high porosity (>99%) and ultra-low density(10 mg/cm3), and possess excellent thermal and sound insulation performance with an optimum thermalconductivity of 34.89 mW/mK and noise reduction coefficient of 0.41. Besides, PASGs demonstrateoutstanding mechanical properties after 500 compression cycles. This strategy providing more possibilitiesfor developing the next generation of high-performance thermal insulation and noise reductionmaterials.