Photocuring kinetics properties of hybrid UV-curing resin for 3D printing

LIN Guang-hong; YIN Jing-feng; HUANG Hong; HUANG Wei-bin; CAI Mu-hua; XIANG Hong-ping; LIU Xiao-xuan

doi:10.11868/j.issn.1001-4381.2018.000667

Cailiao gongcheng (Dec 2019)

Photocuring kinetics properties of hybrid UV-curing resin for 3D printing

LIN Guang-hong,
YIN Jing-feng,
HUANG Hong,
HUANG Wei-bin,
CAI Mu-hua,
XIANG Hong-ping,
LIU Xiao-xuan

Affiliations

LIN Guang-hong: School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
YIN Jing-feng: School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
HUANG Hong: School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
HUANG Wei-bin: School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
CAI Mu-hua: School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
XIANG Hong-ping: School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
LIU Xiao-xuan: School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China

DOI: https://doi.org/10.11868/j.issn.1001-4381.2018.000667
Journal volume & issue: Vol. 47, no. 12
pp. 143 – 150

Abstract

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Free radical-cationic hybrid UV-curable resin applied to UV-cured 3D printing was developed with epoxy resin (EPON828) and polyurethane acrylate (RJ429) as photosensitive prepolymers. The influences of types, ratios and dosages of free radical and cationic photoinitiators on photocuring kinetics, mechanical properties and prototyping precision of hybrid UV-curing resin were investigated. The results show that cationic photoinitiator Gencure 842 and free radical photoinitiator Doracur 1173 are the most appropriate hybrid photoinitiators, with an optimum mass ratio of 0.75:1 and mass fraction of 6%. The optimum mass ratio of EPON828 and RJ429 is determined as 1:1, and the viscosity of the developed resin is 50.5Pa·s. The tensile strength, impact strength, volume shrinkage and warpage of UV-cured resin items are 6.60MPa, 8.28kJ·m-2,-3.986% and 3.62%, respectively. The hybrid UV-curing resin can basically satisfy the requirements of UV-cured 3D printing.

Published in Cailiao gongcheng

ISSN: 1001-4381 (Print)
Publisher: Journal of Materials Engineering
Country of publisher: China
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: http://jme.biam.ac.cn/CN/1001-4381/home.shtml

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