MA-PA-SA/改性粉煤灰复合相变储能材料的制备与性能

材料导报

2019, Vol. 33

Issue (z1): 219-222

无机非金属及其复合材料

MA-PA-SA/改性粉煤灰复合相变储能材料的制备与性能

赖榕永, 王温馨, 谢雯倩, 丁益民

上海大学理学院化学系,上海200444

Preparation and Properties of Composite Phase Change Energy Storage Material MA-PA-SA/Modified Fly Ash

LAI Rongyong, WANG Wenxin, XIE Wenqian, DING Yimin

Department of Chemistry, School of Science, Shanghai University, Shanghai 200444

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摘要将肉豆蔻酸(MA)、棕榈酸(PA)、硬脂酸(SA)混合后形成的相变储能基材与工业固废粉煤灰通过熔融混合法制得MA-PA-SA/改性粉煤灰复合相变储能材料。MA、PA、SA低脂肪酸的质量比为m(MA)∶m(PA)∶m(SA)=56.82∶28.08∶15.10,MA-PA-SA与粉煤灰的质量比为m(MA-PA-SA)∶m(粉煤灰)=1∶1。采用红外(FT-IR)光谱、差热-热重(DTA-TG)分析、储/放热循环实验研究了复合材料的结构和热性能,FT-IR结果表明,MA-PA-SA低共熔物与改性粉煤灰为物理掺杂;DTA结果表明,复合材料的相变温度为45.8 ℃,相变焓为93.58 J/g。材料经过800次的储/放热循环后,其相变焓损失率为12.9%,表明该材料的储热性能稳定,具有较长的使用寿命。该新型复合相变储能材料具有合适的相变温度、较高的相变焓、储/放热性能稳定,且利用了工业固体废弃物粉煤灰,降低了材料的制备成本,在储能和固体废弃物的再利用方面具有实际应用意义。

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关键词: 相变储能材料脂肪酸粉煤灰

Abstract: Amyristic-palmitic-stearic acid/modified fly ash composite phase change material (CPCM) has been prepared,which was a mixture of myristic acid, palmitic acid and stearic acid. The mass ratio was m(MA)∶m(PA)∶m(SA)=56.82∶28.08∶15.10 and m(PCM)∶m(fly ash) = 1∶1 were sui-table, by the heating method. The FT-IR, DTA-TG,and storage/release thermal cycling test has been used to determine the structure and thermal properties of the CPCM. The FT-IR results show that just between each constituent physical interaction. The DTA results indicate that the peak temperature and latent heat of CPCM are 45.8 ℃, 93.58 J/g, respectively. The rate of phase change enthalpy loss is 12.9% through 800 cycles of storage/release thermal cycling test, performance show that the CPCM has good thermal stability and long service life. All the results indicate that the CPCM has proper phase change temperature, high phase change enthalpy, good thermal stability, and fly ash a support material, which reduces the manufacturing cost of the material. It has practical application significance in the field of energy storage and solid waste utilization.

Key words: phase change materials fatty acids fly ash

出版日期: 2019-05-25 发布日期: 2019-07-05

ZTFLH:

O642.4+2

基金资助: 上海市发展教育基金会(LM201445)

作者简介: 赖榕永,硕士研究生。2012年9月至2016年6月,在赣南师范大学获得材料化学专业理学学士学位,2016年9月至今,在上海大学攻读物理化学理学硕士。在校期间,参与发表文章4篇,参加第二十三届上海高校学生创造发明"科创杯"大赛中获得"发明创新三等奖"。研究方向主要是相变储能材料以及固体废弃物的综合利用。丁益民,上海大学副教授,硕士研究生导师。1992年研究生毕业于上海科学技术大学化学系(现上海大学),留校至今。在国内外学术期刊上发表论文50余篇,申请国家发明专利11项,其中授权6项。主要研究方向包括:熔盐相图研究、相变储能材料研发、固体废弃物综合利用研发等。ymding@t.shu.edu.cn

引用本文:

赖榕永, 王温馨, 谢雯倩, 丁益民. MA-PA-SA/改性粉煤灰复合相变储能材料的制备与性能[J]. 材料导报, 2019, 33(z1): 219-222.
LAI Rongyong, WANG Wenxin, XIE Wenqian, DING Yimin. Preparation and Properties of Composite Phase Change Energy Storage Material MA-PA-SA/Modified Fly Ash. Materials Reports, 2019, 33(z1): 219-222.

链接本文:

http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2019/V33/Iz1/219

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