Modification study of cyanoacrylate medical adhesive
10.7687/J.ISSN1003-8868.2015.05.013
- VernacularTitle:氰基丙烯酸酯医用胶的改性研究
- Author:
Wen CHEN
;
Xiangdang LIANG
;
Geng SUN
;
Hongfei CAI
;
Zhuoqun FANG
- Publication Type:Journal Article
- Keywords:
cyanoacrylate;
nano-silica;
bond strength;
toughness;
viscosity
- From:
Chinese Medical Equipment Journal
2015;36(5):13-16,30
- CountryChina
- Language:Chinese
-
Abstract:
Objective To perform modification study of cyanoacrylate (CA) medical adhesive and to select the optimal mo-difying material and the best ratio.Methods Carboxylic multi-walled carbon nanotubes (MWCNTs-COOH), multi-walled carbon nanotubes (MWCNTs), hydrophobic nano-silica, nitrile rubber, epoxy resin and polymethyl methacrylate (PMMA) were used to modify 5% triclosan/cyanoacrylate antimicrobial adhesive respectively. The bond strength, toughness and viscosity of the modified adhesive were examined in different concentrations.Results 0.064% MWCNTs-COOH, 6% nano-silica, 4% nitrile rubber and 6.4% epoxy resin all had good effects in strength modification. The bond strength were (14.71±1.48)MPa, (14.03±1.92)MPa, (14.6±1.78)MPa and (14.05±1.46)MPa respectively. 8% nano-silica had the lowest Tg of (1.1±0.24)℃ and the strongest viscosity of (15 536.68±28.4)cP. When the nano-silica concentration was 8%, the compound was very viscous and sticky. When the antimicrobial adhesive modified with 6% nano-silica, the bond strength was (14.03±1.92)MPa, the Tg was (3.6±0.68)℃, and the viscosity was (5 278.87±31.68)cP.Conclusion 6% nano-silica is the best modifying material, and has the optimal effect of modification.
