摘要
以N-羟甲基丙烯酰胺(N-MA)和聚乙二醇(PEG)共晶为原料,通过乳液聚合制得聚N-羟甲基丙烯酰胺(PN-MA)/PEG半互穿网络(SIPN)复合相变材料(CPCM)。利用FTIR、XRD、差示扫描量热仪(DSC)、SEM、EDS等方法对PN-MA/PEG SIPN型CPCM的结构与性能进行了研究。结果表明:所得PN-MA/PEG SIPN型CPCM结晶焓和熔融焓达到78.38 J/g和82.31 J/g,结晶温度和熔融温度分别为36.88℃和32.05℃;CPCM中PN-MA和PEG之间是物理作用,并未发生其它的化学反应;得到的CPCM呈球形,尺寸比较均匀,由粒径200 nm左右的小球聚集形成10~15μm左右的大球,球内呈现细密的三维网笼状结构;PEG在交联PN-MA网络的限制下被很好地固载,且仍有良好的结晶性能。
Using N-methylol acrylamide(N-MA)and polyethylene glycol(PEG)eutectic as raw materials,poly-Nmethylol acrylamide(PN-MA)/PEG semi-interpenetrating network was prepared by emulsion polymerization(SIPN)composite phase change material(CPCM).The structure and performance of(PN-MA)/PEG CPCM were characterized using FTIR,XRD,differential scanning calorimeter(DSC),SEM,EDS and other methods.The results show that the crystallization enthalpy and melting enthalpy of the obtained CPCM reach 78.38 J/g and82.31 J/g,and the crystallization temperature and melting temperature are 36.88°C and 32.05°C respectively;the interaction between PN-MA and PEG in CPCM is physical link,no other chemical reaction occurs;the obtained CPCM is spherical and the size is relatively uniform.The small spheres with a diameter of about 200 nm are aggregated to form large spheres with a diameter of 10μm to 15μm.The sphere presents a dense three-dimensional net cage structure;PEG is well supported under the constraints of the cross-linked PN-MA network,and still has good crystallization performance.
作者
刘玲伟
邹新全
张鸿
叶泳铭
赵云鹤
石军峰
闫铭
朱浩彤
周炜东
于跃
LIU Lingwei;ZOU Xinquan;ZHANG Hong;YE Yongming;ZHAO Yunhe;SHI Junfeng;YAN Ming;ZHU Haotong;ZHOU Weidong;YU Yue(School of Textile and Engineering,Dalian Polytechnic University,Dalian 116034,China)
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2021年第4期1098-1106,共9页
Acta Materiae Compositae Sinica
基金
辽宁省教育厅基础研究项目(J2019018)
大连市科技创新基金(2019J12GX047)。
关键词
聚乙二醇
N-羟甲基丙烯酰胺
复合相变材料
半互穿网络
乳液聚合
polyethylene glycol
N-hydroxymethyl acrylamide
composite phase change materials
semi-inter-penetrating network
emulsion polymerization
