详细信息

一种用于FDM型3D打印的改性PBT    

A Modified PBT for Fused Deposition Modeling in 3D Printing

文献类型:期刊文献

中文题名:一种用于FDM型3D打印的改性PBT

英文题名:A Modified PBT for Fused Deposition Modeling in 3D Printing

作者:曹世晴[1];孙莉[1];薛为岚[1];曾作祥[1];朱万育[2]

机构:[1]华东理工大学化工学院,上海200237;[2]上海天洋热熔胶有限公司,上海201802

年份:2016

卷号:29

期号:1

起止页码:75

中文期刊名:功能高分子学报

外文期刊名:Journal of Functional Polymers

收录:CSTPCD;;北大核心:【北大核心2014】;CSCD:【CSCD2015_2016】;

语种:中文

中文关键词:改性PBT;3D打印;力学性能;间苯二甲酸;癸二酸

外文关键词:modified PBT; 3D printing; mechanical properties; isophthalic acid; sebacic acid

摘要:以对苯二甲酸(PTA)、间苯二甲酸(PIA)、癸二酸(SA)和1,4-丁二醇(BDO)为原料,通过直接酯化和减压缩聚的方法制备了一种适合熔融沉积打印(FDM)型3D打印的改性聚对苯二甲酸丁二醇酯(PBT)——聚对苯二甲酸间苯二甲酸癸二酸丁二醇酯(PBTIS)。采用核磁共振氢谱(1 H-NMR)、凝胶渗透色谱法(GPC)、差示扫描量热法(DSC)、黏度计和熔体仪、万能电子拉力机和冲击试验机分别研究了其热性能、流变性能和力学性能。研究表明:当n(PTA)∶n(PIA)=7∶3,SA的物质的量分数为3%~5%时,PBTIS具有合适的熔点、良好的拉伸强度和弯曲强度及悬梁缺口冲击强度等力学性能。用桌面拉丝挤出机将PBTIS样品制成卷材并用3D打印机打印,结果表明其可以流畅地打印出所设计的三维物件。
Modified poly(butylene terephalate)(poly(butylene terephalate-co-isophthalate-co-sebacate)(PBTIS))were prepared for fused deposition modeling(FDM)in 3D printing by direct esterification and subsequent polycondensation using terephthalic acid(PTA),isophthalic acid(PIA),sebacic acid(SA)and1,4-butanediol(BDO).The thermal,rheological and mechanical properties of PBTIS were investigated by1 H-NMR spectroscopy,Gel Permeation Chromatography(GPC),Differential Scanning Calorimetry(DSC),brookfield viscometer and melt indexer,electronic tensile testing machine and impact testing machine.Results showed that when n(PTA)∶n(PIA)was 7∶3and the mole fraction of SA was 3%-5%,PBTIS had good melting point and excellent mechanical properties such as tensile strength,flexural strength and notched impact strength.Then the samples of PBTIS were changed into filaments by a desktop drawing machine and printed using a 3D printer,which could be 3D printed fluently.

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