Development of biodegradable bioadhesive nanocomposites reinforced with quantum dots and functionalized carbon nanotubes

被引:0
作者
Antolin-Ceron, V. H. [1 ]
Altamirano-Gutierrez, A. [1 ]
Astudillo-Sanchez, P. D. [1 ]
Andrade-Melecio, H. A. [2 ]
Martinez-Richa, A. [3 ]
机构
[1] Univ Guadalajara, Ctr Univ Tonala, Dept Ciencias Basicas Aplicadas Ingn, Tonala, Mexico
[2] Univ Guadalajara, Ctr Univ Ciencias Exactas & Ingn, Dept Ingn Quim, Guadalajara, Mexico
[3] Univ Guanajuato, Dept Quim, Guanajuato, Mexico
关键词
Adhesives; carbon quantum dots; carbon nanotubes; nanocomposites; polyurethanes; poly(epsilon-caprolactone); porcine small intestine; AMIDE-I-BAND; HYDROLYTIC DEGRADATION; POLYESTER-URETHANES; BURST PRESSURE; STAPLE-LINES; CASTOR-OIL; POLYURETHANES; ADHESIVES; COLLAGEN; ENERGY;
D O I
10.1080/01694243.2024.2372931
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A series of photoluminescent nanocomposite polyurethane adhesives were elaborated from a chemoenzymatic prepared diol of caprolactone (PCL-diol) and ethylene glycol with an excess of two different isocyanates: i) hexamethylene (HDI) and (ii) isophorone (IPDI)) diisocyanates. Adhesive formulations were filled with functionalized poly(amido-amine) (PAMAM) carbon nanotubes (f-MWNTs) and carbon quantum dots (CQDTs). Dry swine gut was used as substrate and mechanical tests were performed to explore the performance of the adhesives. The obtained materials were characterized by infrared spectroscopy (FT-IR), energy surface by contact angle, differential scanning calorimetry (DSC), hydrolytic degradation, and mechanical testing under tension, lap shear, T-peel, wound closure, and burst pressure. Among the main results were the formation of covalent bonds between the substrate and the adhesive, and the fact that the mechanical strength of the nanocomposite adhesives was superior to that of the unfilled adhesives. Compatibility of nanocomposites with the substrate was achieved by increasing wettability by the incorporation of both nanofillers. Also, adhesives filled with only CQDTs and with MWNTs-CDQTs combined showed photoluminescence activity under ultraviolet light.
引用
收藏
页码:4275 / 4298
页数:24
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