Thermal stability of UV-cured vegetable oil epoxidized acrylate-based polymer system for 3D printing application

被引：64

作者：

Barkane, Anda ^{[1
]}

Platnieks, Oskars ^{[1
]}

Jurinovs, Maksims ^{[1
]}

Gaidukovs, Sergejs ^{[1
]}

机构：

[1] Riga Tech Univ, Fac Mat Sci & Appl Chem, Inst Polymer Mat, P Valdena 3-7, LV-1048 Riga, Latvia

来源：

POLYMER DEGRADATION AND STABILITY | 2020年 / 181卷

关键词：

Biopolymers; photoinitiator; additive manufacturing; stereolithography; thermal properties; soybean oil; SOYBEAN-OIL; RESINS; KINETICS; COATINGS; BLENDS; FTIR;

D O I：

10.1016/j.polymdegradstab.2020.109347

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Fabrication of sustainable photo-cured vegetable oil epoxidized acrylates were performed with two distinct methods using stereolithographic (SLA) 3D printer set up and UV-LED lamp. Two reactive monomers of 1,6-hexanediol diacrylate and trimethylolpropane triacrylate were selected to adjust the 3D printing conditions and improve thermal properties of the photocured polymer. Thermal destruction was preformed using thermogravimetric analysis (TGA) set up combination with FTIR sensor to investigate decomposition products. The glass transition of the polymer was determined using modulated differential scanning calorimetry (MDSC). The obtained results show that addition of appropriate reactive comonomers can increase glass transition temperature by 10 degrees C, thermal degradation temperature by 28 degrees C, and also decrease necessary resin photocuring time by almost a half from 4 sec up to 2 sec. Thermal destruction kinetics investigation by Friedman method revealed that addition of the reactive comonomers increases necessary activation energy for thermal destruction by 10% with UV-LED lamp, while curing resin with SLA printer further increases activation energy by 25%. The 3D printed resin release less hazardous gases and more CO2. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：10

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