PAN废丝接枝聚乙二醇相变材料的制备  

Preparation of Polyacrylonitrile Fibre/Polyethylene Glycol Grafting Copolymerization as Phase Change Materials

作　　者：郭静[1] 相恒学[1] 巩学勇[2] 张银鹏[1] 

机构地区：[1]大连工业大学化工与材料学院,辽宁大连116034 [2]泰山医学院化学与化学工程学院,山东泰安271016

出　　处：《高分子材料科学与工程》2010年第10期133-136,共4页Polymer Materials Science & Engineering

摘　　要：研究了腈纶(PAN)废丝碱催化水解工艺,用傅立叶红外光谱表征了PAN废丝水解产物的结构。采用正交实验法研究了PAN废丝接枝聚乙二醇制备工艺,用差示扫描量热仪研究了聚乙二醇(PEG)分子量、催化剂用量、接枝反应温度等因素对腈纶水解产物和聚乙二醇的接枝产物(HPAN-g-PEG)相变性能的影响,用偏光显微镜考察了PEG、HPAN-g-PEG的晶体结构,通过测定步冷曲线观察了接枝产物的保温性能。结果表明,该接枝材料表现出固-固相转变特性,潜热储存能力达105J/g,并呈现出良好的保温性能。Alkaline hydrolysis of catalytic process conditions of waste polyacrylonitrile fibre was studied in the experiments. The structure of hydrolyzate of waste polyacrylonitrile fibre（HPAN） was investigated by Fourier transform infrared spectroscopy（FT-IR）. The preparation process of graft product by HPAN and PEG （HPAN-g-PEG） was studied using orthogonal experiments.The factors of the polyethylene glycol （PEG） with molecular weight,the consumption of catalyst,graft copolymerization temperature on HPAN-g-PEG phase transition properties were studied by differential scanning calorimeter （DSC）.The crystal structure of pure PEG and HPAN-g-PEG were investigated using polarizing optical microscope （POM）.The insulation properties was observed using cooling curve of HPAN-g-PEG. The results show that the graft material shows a solid-solid phase transition properties,latent heat storage capacity of up to 105 J/g,and has a good thermal insulation properties.

关 键 词：腈纶废丝 聚乙二醇 接枝 相变材料 

分 类 号：TB34[一般工业技术—材料科学与工程]