Thermo-mechanical properties of shape-recoverable structural composites via vacuum-assisted resin transfer molding process and in-situ polymerization of poly (tert-butyl acrylate-co-acrylic acid) copolymer

被引：2

作者：

Jeon, Jei Gyeong ^{[1
,2
,3
]}

So, Byeong Jun ^{[1
]}

Choi, Yuseung ^{[1
]}

Han, Yusu ^{[4
]}

Kim, Taehoon ^{[1
]}

Shin, Gilyong ^{[1
]}

Lee, Ju Hwan ^{[1
]}

Kim, Hyeong Jun ^{[1
]}

Kim, Ju Hyeon ^{[1
]}

Farhangdoust, Saman ^{[2
]}

Chang, Fu-Kuo ^{[2
]}

Kim, Minkook ^{[3
]}

Lee, Min Wook ^{[3
]}

Yun, Sungryul ^{[5
]}

Kang, Tae June ^{[1
]}

机构：

[1] Inha Univ, Dept Mech Engn, Micro Nanoengn Lab, 100 Inha Ro, Incheon 22212, South Korea

[2] Stanford Univ, Dept Aeronaut & Astronaut, Struct & Composites Lab, 496 Lomita Mall, Stanford, CA 94305 USA

[3] Korea Inst Sci & Technol, Inst Adv Composite Mat, 92 Chudong Ro, Jeonbuk 55324, South Korea

[4] Hyundai Mobis Co Ltd, Polymer Mat Cell, 17-2 Mabuk Ro 240 Beon Gil, Yongin 16891, Giheunggu Do, South Korea

[5] Elect & Telecommun Res Inst ETRI, 218 Gajeong Ro, Daejeon 34129, South Korea

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2024年 / 185卷

基金：

新加坡国家研究基金会;

关键词：

Vacuum-assisted resin transfer molding (VARTM); Shape memory polymer composites; Recovery stress; Poly ( tert -butyl acrylate-co-acrylic acid); MEMORY POLYMER; BEHAVIOR; MODEL;

D O I：

10.1016/j.compositesa.2024.108360

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

When selecting a polymer matrix to make shape memory polymer composites (SMPCs), it is crucial to consider high elastic modulus below the switching temperature (Tsw), a significant variation in the modulus above Tsw, and the ability to control Tsw. This research introduces shape-recoverable structural composites fabricated from poly (tert-butyl acrylate-co-acrylic acid) (PtBA-AA), which has a significant modulus variation before and after Tsw. Capillary numbers are assessed to minimize void formation at varying acrylic acid (AA) concentrations, which regulate the copolymer's polarity and the thermo-mechanical properties. The glass transition temperature of PtBA-AA can be adjusted from 47.4 degrees C to 91.6 degrees C. Furthermore, the elastic modulus of SMPC increases from 13 GPa to 20 GPa, whereas the tensile strength increases from 526 MPa to 889 MPa. The maximum recovery strength measured 100.4 MPa at an AA molar ratio of 0.23, accompanied by a fixity of 89.1 % and a recovery ratio of 97.2 %.

引用

页数：11

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