A Dielectric Ink Combining Acrylate and Cyanate Moieties for Inkjet 3D Printing with Good Thermal Stability

被引:4
作者
Li, Yi-Xuan [1 ,2 ]
Wu, Liang-Ying [3 ]
Yang, Yan [1 ]
Lu, Yao-Zhong [2 ]
Ji, Zhong-Ying [2 ,4 ]
Guo, Yu-Xiong [2 ,4 ]
Wang, Xiao-Long [2 ,4 ]
Pu, Qiao-Sheng [1 ]
机构
[1] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
[2] Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[3] Lanzhou Tradit Chinese Med Hosp Orthoped & Traumat, Lanzhou 730000, Peoples R China
[4] Yantai Zhongke Res Inst Adv Mat & Green Chem Engn, Shandong Lab Adv Mat & Green Mfg Yantai, Yantai 264006, Peoples R China
基金
中国国家自然科学基金;
关键词
Inkjet printing; Cyanate ester resin; 3D doubly cross-linked network; Good thermal stability; ESTER; PERFORMANCE; POLYMER; RESINS;
D O I
10.1007/s10118-024-3114-8
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Inkjet 3D printing has potential in the additive manufacturing of electronic circuits and devices. However, inks that can be used for printing layers with T-5%>300 degree celsius or hardness>200 MPa have been rarely reported. Cyanate ester (CE) polymers have excellent thermal stability, high strength, and low shrinkage compared to other common dielectric inks for inkjet 3D printing, but cannot be quickly shaped by ultraviolet (UV) irradiation or thermal treatment. Combining CEs with UV-curable monomers may be a possible way to accelerate crosslinking, but there are challenges from the adverse effects of the dilution of both monomers. In this study, dielectric inks with acrylate and cyanate moieties were developed. The low viscosity and surface tension of the CE precursor (Bisphenol E cyanate ester) were combined with photocurable acrylate diluent monomers and cross-linker to realize an ink suitable for inkjet 3D printing. An internal dual three-dimensional cross-linked network structure resin was prepared by a combination of photocuring and thermal curing with T-5% up to 326.69 degree celsius, hardness up to 431.84 MPa, dielectric constant of 2.70 at 8 GHz, and shrinkage of 1.64%. The developed dielectric inks can be applied to the 3D printing of printed circuit boards and other electronic devices that require dielectric properties.
引用
收藏
页码:907 / 915
页数:9
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