EVA/MPE/DK-HNTs复合材料的制备及其性能  

Preparation and properties of EVA/MPE/DK-HNTs composites

作　　者：李薇 常子衡 刘子涵 朱硕楠 孟强 杜敬亮 杜永刚 Li Wei;Chang Ziheng;Liu Zihan;Zhu Shuonan;Meng Qiang;Du Jingiang;Du Yonggang(School of Materials Science and Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Hebei Sunua Advanced Material Co.,Ltd.,Shijiazhuang 050043,China;Hebei Key Laboratory of Advanced Materials for Transportation Engineering and Environment,Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学材料科学与工程学院,河北石家庄050043 [2]河北尚华新材料股份有限公司,河北石家庄050043 [3]河北省交通工程与环境协同发展新材料重点实验室,河北石家庄050043

出　　处：《合成树脂及塑料》2024年第1期18-23,共6页China Synthetic Resin and Plastics

基　　金：河北省中央引导地方科技发展资金项目(206Z1202G);河北省自然科学基金项目(B2019210221)。

摘　　要：以9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)、硅烷偶联剂KH570为原料合成了DOPOKH570,并接枝于埃洛石纳米管表面,制备了端基含DOPO的埃洛石纳米管(DK-HNTs)。通过傅里叶变换红外光谱和X射线光电子能谱表征了DK-HNTs的化学组成及结构。采用熔融共混法制备了乙烯-乙酸乙烯酯共聚物/茂金属聚乙烯/DK-HNTs复合材料,考察了DK-HNTs用量对复合材料性能的影响。结果表明:少量DK-HNTs在复合材料中可以均匀分散;当DK-HNTs用量为5%(w)时,复合材料拉伸强度、拉伸断裂标称应变、残炭量分别为21.08 MPa,735%,4.20%(w)。此外,DK-HNTs的加入使复合材料的加工流动性略有下降。9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO),γ-methacryloyloxypro pyltrimethoxysilane(KH-570)were used as raw materials to prepare DOPO-KH570,which was used for the surface modification of halloysite nanotubes to prepare DK-HNTs containing DOPO in end group.The chemical composition and structure of DK-HNTs were characterized by Fourier transform infrared spectroscopy(FTIR)and X-ray diffractometer(XRD).The ethylene-vinyl acetate/metallocene polyethylene/DK-HNTs composites were prepared via melt blending,and the effect of DK-HNTs addition on the properties of the composites were investigated.The results show that a low addition of DK-HNTs can achieve uniform dispersion in the composites.When the mass fraction of DK-HNTs is 5%(w),the tensile strength and elongation at break are 21.08 MPa and 735%,and the carbon residue of the composites is 4.20%(w).Moreover,the addition of DK-HNTs results in a slight decrease in the processing fluidity of the composites.

关 键 词：乙烯-乙酸乙烯酯共聚物 埃洛石纳米管 复合材料 力学性能 

分 类 号：TQ322[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程] TM75[电气工程—电力系统及自动化]