Influence of irradiation parameters on the curing and interfacial tensile strength of HAP printed part fabricated by SLA-3D printing

被引：27

作者：

Chen, Qinghua ^{[1
,3
,4
]}

Zou, Bin ^{[1
,3
,4
,6
]}

Lai, Qingguo ^{[2
,5
]}

Zhao, Yun ^{[2
,5
]}

Zhu, Kaiwen ^{[2
,5
]}

机构：

[1] Shandong Univ, Ctr Adv Jet Engn Technol CaJET, Sch Mech Engn, Jinan 250061, Peoples R China

[2] Second Hosp Shandong Univ, Dept Oral & Maxillofacial Surg, Jinan 250033, Shandong, Peoples R China

[3] Shandong Univ, Key Lab High Efficiency & Clean Mech Manufacture, Minist Educ, Jinan, Peoples R China

[4] Shandong Univ, Natl Demonstrat Ctr Expt Mech Engn Educ, Jinan, Peoples R China

[5] Shandong Univ, Res Ctr 3D Printing Stomatol, Jinan, Peoples R China

[6] Shandong Univ, 17923 Jing Shi Rd, Jinan 250061, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2022年 / 42卷 / 14期

关键词：

Hydroxyapatite; Stereolithography; Curing characteristics; Interfacial tensile strength; HYDROXYAPATITE; STEREOLITHOGRAPHY; SCAFFOLDS; PHOTOPOLYMERIZATION; SUSPENSIONS; PHOSPHATE; SURFACE; DEPTH; WIDTH;

D O I：

10.1016/j.jeurceramsoc.2022.07.019

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

081705 [工业催化]; 082905 [生物质能源与材料];

摘要：

In this paper, the curing and the interfacial tensile strength of a hydroxyapatite (HAP) printed part, fabricated by stereolithography (SLA), are systematically evaluated. First, a stable HAP paste was developed with a viscosity suitable for SLA-3D printing. In the curing process of SLA-3D printing, an evident laser removal phenomenon occurred on the upper surface of the cured HAP paste, which was not mentioned in other studies. Therefore, the influence of irradiation parameters on the curing characteristics of HAP paste was investigated, while a modified critical laser exposure inequation was established, to derive the curing range of HAP paste under a UV spot. Next, the influence of irradiation parameters on the interfacial tensile strength of HAP printed part was tested and analyzed in detail. Ideally, the laser removal site formed on the cured surface would increase the contact area with the next layer and facilitate a stronger mechanical bond between layers.

引用

页码：6721 / 6732

页数：12

共 67 条

[1]

Photopolymerization kinetics of a polyether acrylate in the presence of ceramic fillers used in stereolithography [J].