化学接枝聚乙二醇单甲醚的氧化石墨烯/聚丙烯相变材料  

Graphene oxide/chemically grafted methoxy polyetheylene glycol solid-solid phase change material

作　　者：赵唯栋 谢明 包建坤 姚锋华 陈龙[1,2] 孙俊芬[1,2] ZHAO Weidong;XIE Ming;BAO Jiankun;YAO Fenghua;CHEN Long;SUN Junfen(College of Materials Science and Engineering,Donghua University,Shanghai,China;State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai,China)

机构地区：[1]东华大学材料科学与工程学院,上海 [2]东华大学纤维材料改性国家重点实验室,上海

出　　处：《东华大学学报（自然科学版）》2024年第4期113-121,共9页Journal of Donghua University(Natural Science)

摘　　要：在聚乙二醇单甲醚(MPEG)中引入具有三嗪环结构的2-氨基-4,6-二氯-1,3,5-三嗪(ADCT),将MPEG的-OH接枝在ADCT的三嗪环4、6位制备具有三嗪环结构的MPEG(ADMT),然后负载于载体材料氧化石墨烯(GO)得到定形相变材料(FSPCM),利用双螺杆挤出机将FSPCM与聚丙烯(PP)熔融共混,制备FSPCM质量比为5%、10%、15%的PP/FSPCM共混材料,并采用^(1)HNMR、FT-IR、DSC、热台测试等试验手段对ADMT、FSPCM、PP/FSPCM共混材料进行表征。研究结果表明:FSPCM结晶焓值为96.1J·g^(-1),在250℃下仍保留较好的定形效果。10%质量比的PP/FSPCM相变焓值为9.10J·g^(-1),焓值效率为60.7%。2-amino-4,6-dichloro-1,3,5-triazine(ADCT),with its triazine ring structure,was introduced into methoxy polyethylene glycol(MPEG),and MPEG with a triazine ring structure(ADMT)was prepared by grafting the-OH of MPEG at the position 4 and 6 of the triazine ring.ADMT was loaded onto the carrier material,graphene oxide(GO),to obtain the form-stable phase change material(FSPCM).FSPCM was blended with polypropylene(PP)using a twin-screw extruder.PP/FSPCM blends with mass ratios of 5%,10% and 15% of FSPCM were prepared.ADMT,FSPCM and PP/FSPCM blended materials were characterized by using ^(1)H NMR,FT-IR,DSC and hot table test.The results show that the crystallization enthalpy of FSPCM is 96.1 J·g^(-1),and FSPCM still retains a good form-setting effect at 250℃.The enthalpy transformation is 9.10 J·g^(-1) and the enthalpy efficiency is 60.7% when the mass ratio of PP/FSPCM is 10%.

关 键 词：复合材料 定形相变材料 化学接枝 聚乙二醇单甲醚 

分 类 号：TB34[一般工业技术—材料科学与工程]