Preparation and characterization of hydroxyapatite-poly(vinyl alcohol) composites reinforced with cellulose nanocrystals

被引：0

作者：

机构：

[1] MOE Key Laboratory of Wooden Material Science and Application, College of Materials Science and Technology, Beijing Forestry University, Beijing

[2] Beijing Key Laboratory of Wood Science and Engineering, College of Materials Science and Technology, Beijing Forestry University, Beijing

[3] MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, College of Materials Science and Technology, Beijing Forestry University, Beijing

[4] Guangxi Eco-engineering Vocational and Technical College, Liuzhou

来源：

Zhang, Shuangbao | 1600年 / North Carolina State University卷 / 09期

关键词：

Articular cartilage repair; Cellulose nanocrystals; HAp/PVA composite gels; Preparation and characterization; Reinforcement;

D O I：

10.15376/biores.9.4.6087-6099

中图分类号：

学科分类号：

摘要：

Hydroxyapatite/poly(vinyl alcohol) (Hap/PVA) composites have been proposed as a promising biomaterial for use in articular cartilage repair. In this study, HAp/PVA composite gels reinforced with cellulose nanocrystals (CNC) were prepared using the freeze/thaw method. The influence of CNC as a reinforcement on the structure of composite gels was investigated via Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), and scanning electron microscopy (SEM). The mechanical properties and thermal stability of the composite gels were also studied. The FT-IR and XRD results indicated that the HAp/PVA/CNC composite gels were formed by hydrogen bonding. SEM morphology showed that the CNC served as an enhancement phase that interpenetrated the network of the HAp/PVA composite gels. The tensile strength and tensile modulus of the composites improved with increasing dosage of CNC. The thermal stability measurements indicated that the thermal stability of the HAp/PVA composites was slightly improved with the addition of the CNC.

引用

页码：6087 / 6099

页数：12