当前位置: X-MOL 学术Chin. J. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Synthesis of Hyperbranched Polymer for 3D Printing
Chinese Journal of Chemistry ( IF 5.4 ) Pub Date : 2021-08-25 , DOI: 10.1002/cjoc.202100521
Yibo Song 1 , Fahu Yang 1 , Zhenwei Zheng 1 , Pingping Wu 2 , Lixia Huo 1 , Jinshan Guo 1 , Jingxia Wang 2
Affiliation  

3D printing has been developing rapidly in recent years owing to its application in academic and industry areas, but the poor mechanical property of printing materials limits its application. Herein, a photocurable resin with good mechanical property was obtained based on hyperbranched polymer synthesized through the reaction of carboxylic acids with isocyanates catalyzed by magnesium stearate. Three kinds of hyperbranched polymers with different molecular weight were fabricated by modulating the content of isocyanates. By mixing hyperbranched polymer with acryloylmorpholine, polyethylene glycol diacrylate 400 and photoinitiator of 819, the photocurable resin was obtained. The influence of various factors on mechanical properties of samples was investigated such as molecular weight of hyperbranched polymer and the light exposure time. Comparing with the commercial resin, the flexural strength (116.06 MPa) and impact strength (34.59 kJ/m2) of the resultant resin increased by 21.2% and 20.8%, respectively.image

中文翻译:

用于 3D 打印的超支化聚合物的合成

近年来,3D打印因其在学术和工业领域的应用而得到迅速发展,但打印材料较差的力学性能限制了其应用。在此,基于硬脂酸镁催化羧酸与异氰酸酯反应合成的超支化聚合物,获得了具有良好机械性能的光固化树脂。通过调节异氰酸酯含量制备了三种不同分子量的超支化聚合物。将超支化聚合物与丙烯酰吗啉、聚乙二醇二丙烯酸酯400和光引发剂819混合,得到光固化树脂。研究了各种因素对样品力学性能的影响,如超支化聚合物的分子量和光照时间。2 )所得树脂分别增加了21.2%和20.8%。图片
更新日期:2021-10-14
down
wechat
bug