本文選題：復合相變材料　切入點：甲酸鈉(二水)　出處：《制冷學報》2017年01期

【摘要】：本文針對蓄冷保溫箱研制了一種相變溫度適宜、潛熱較高、腐蝕性較小、不產(chǎn)生氣體的低溫相變材料甲酸鈉(二水)21%+79%,并制作了純聚氨酯發(fā)泡(PU)、真空絕熱板-聚氨酯復合(VIP-PU)兩種保溫箱,將研制的相變材料充冷后分別應用于兩種不同材質(zhì)保溫層的蓄冷保溫箱中,針對不同材質(zhì)保溫箱、不同蓄冷劑質(zhì)量、不同冷凍溫度的對比實驗觀察放冷效果。結(jié)果表明:在凍結(jié)溫度-60℃情況下,真空絕熱板-聚氨酯復合的蓄冷箱保冷效果是純聚氨酯蓄冷箱的兩倍;當所用蓄冷劑質(zhì)量為15kg,真空絕熱板-聚氨酯復合的蓄冷箱能夠維持箱內(nèi)-10℃的低溫環(huán)境13 h,具有最優(yōu)的保冷效果。
[Abstract]:In this paper, a kind of suitable phase change temperature, high latent heat and less corrosion has been developed for the storage heat preservation box. The low temperature phase change material sodium formate (21% 79% dihydrate), which does not produce gas, has been made into two kinds of insulating boxes: pure polyurethane foamed polyurethanes, vacuum insulation plate-polyurethane composite VIP-PU. The phase change materials are applied to the storage and heat preservation boxes of two different materials, aiming at the different materials and the different quality of the refrigerant. The results show that at freezing temperature -60 鈩，

本文編號：1695773