本文選題：聚乙二醇(PEG) + 泡沫碳(CF)�。� 參考：《西北師范大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年03期

【摘要】：以泡沫碳(CF)為基底,不同分子量的聚乙二醇(PEG)為相變材料,采用物理共混法制備出一系列聚乙二醇/泡沫碳(PEG/CF)復(fù)合相變材料,利用紅外光譜(FT-IR)、X射線衍射(XRD)、N2吸附(BET)、掃描電鏡(SEM)、差示掃描量熱(DSC)和熱重分析(TGA)對(duì)制備的復(fù)合相變材料進(jìn)行了表征分析和熱性能研究.結(jié)果表明,PEG/CF復(fù)合相變材料的定形能力為90%,PEG與CF之間只存在簡(jiǎn)單的物理吸附作用,并沒(méi)有發(fā)生化學(xué)變化生成新物質(zhì);PEG4000定形復(fù)合相變材料的相變焓最大(168.5J·g~(-1));所有制備的復(fù)合相變材料在220℃以下均具有良好的熱穩(wěn)定性.
[Abstract]:A series of polyethylene glycol / carbon foamed PEG / CFC composite phase change materials were prepared by physical blending method using carbon foamed carbon (CFC) as substrate and polyethylene glycol (PEG) with different molecular weight as phase change material. The composite phase change materials were characterized and characterized by FT-IR X-ray diffractometer (XRDX) N _ 2 adsorption, SEM, DSC and TGA). The thermal properties of the composite materials were investigated by thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The properties of the composite phase change materials were investigated by means of X-ray diffraction spectroscopy (FTIR), X-ray diffraction (XRD), X-ray diffraction (XRD) and X-ray diffraction (XRD). The results show that the setting ability of PEG / CF composite phase change material is 90% and there is only simple physical adsorption between PEG and CF. The maximum enthalpy of phase transition of PEG4000 composite phase change material is 168.5 J / g ~ (-1), and all the composite materials have good thermal stability below 220 鈩，

本文編號(hào)：1802166