水基炭黑-胶原蛋白纳米流体制备及稳定性实验  

Experimental study on the preparation and stability of water-based carbon black-collagen nanofluids

作　　者：李凯[1] 魏鹤琳[1] 左夏华 杨卫民[1] 阎华[1] 安瑛[1] LI Kai;WEI Helin;ZUO Xiahua;YANG Weimin;YAN Hua;AN Ying(College of Mechanical and Eelectrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《化工进展》2024年第4期1944-1952,共9页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(52176175)。

摘　　要：纳米流体由于其优异的光热转换性能,已成为新型太阳能集热介质的研究重点;但因其稳定性差、制备工艺复杂,未能在实际应用中得到推广。本文以去离子水为基液,通过两步法制备炭黑-胶原蛋白纳米流体。探究了材料添加顺序、胶原蛋白种类、超声时间、材料配比以及溶液pH等对纳米流体稳定性的影响。结果表明,制备水基炭黑-胶原蛋白纳米流体时,先分散炭黑再加入胶原蛋白可以提高其稳定性;猪皮胶原蛋白更适用于炭黑-胶原蛋白纳米流体的制备;超声45min,炭黑胶原蛋白质量配比为1/20,悬浮液pH在6.5~7.5之间制备得到的纳米流体稳定性较好。本研究有助于今后水基炭黑-胶原蛋白纳米流体产业化应用于太阳能光热转换领域。Due to their excellent photothermal conversion performance,nanofluids have become the research focus of new solar collector media.However,due to its poor stability and complex preparation process,it has not been promoted in practical applications.In this paper,carbon black-collagen nanofluids were prepared by a two-step method using deionized water as the base solution.The effects of material addition order,collagen type,ultrasound time,material ratio and solution pH on the stability of nanofluids were explored.The results showed that the stability could be improved by dispersing carbon black and then adding collagen when preparing water-based carbon black-collagen nanofluids.Porcine skin collagen was more suitable for the preparation of carbon black-collagen nanofluids.The nanofluids prepared by ultrasound for 45min,the carbon black collagen mass ratio of 1/20 and the pH of suspension of 6.5―7.5 had good stability.This research would contribute to the industrial application of water-based carbon black-collagen nanofluids in the field of solar photothermal conversion in the future.

关 键 词：纳米流体 炭黑 胶原蛋白 稳定性 分光光度计法 ZETA电位 

分 类 号：TK019[动力工程及工程热物理]