The multiscale enhancement of mechanical properties of 3D MWK composites via poly(oxypropylene) diamines and GO nanoparticles

Nanotechnology Reviews

article

Hong-mei Zuo¹  Dian-sen Li¹  David Hui³  Lei Jiang¹ 

[1] Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, School of Chemistry, Beihang University;Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University;Department of Mechanical Engineering, University of New Orleans, United States of America

关键词: surface modification;    GO;    out-of-plane compression;    damage mechanics;    high temperature;   

DOI  :  10.1515/ntrev-2019-0052

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

Interfacial bonding between the fibers and matrix plays a large role in mechanical properties of composites. In this paper, poly(oxypropylene) diamines (D 400 ) and graphene oxide (GO) nanoparticles were grafted on the desized 3D multi axial warp knitted (MWK) glass fiber (GF) fabrics. The surface morphology and functional groups of modified glass fibers were characterized by scanning electron microscopy (SEM) and fourier transform infrared spectra (FT-IR). Out-of-plane compression properties and the failure mechanisms of composites at different temperature were tested and analyzed. The results revealed that GO nanoparticles were successfully grafted on fibers under the synergistic effect of D 400 . In addition, D 400 -GO-grafted composite possessed the highest mechanical properties than desized composite and GO-grafted composite. Their strength and modulus were improved by 10.16%, 10.06%, 8.92%, 8.75%, 7.76% and 40.38%, 32.74%, 29.85%, 26.98%, 25.16% compared to those of desized composites at 30 ∘ C, 60 ∘ C, 90 ∘ C, 120 ∘ C, 150 ∘ C, respectively. The damage to D 400 -GO-grafted composite was yarns fracture accompanied with fibers breakage, matrix cracking, interface debonding. At higher temperature, interlayer slipping with matrix plasticization was the main failure mode.

【 授权许可】

CC BY