Adhesion strength characterization of PVDF/HA coating on cp Ti surface modified by laser beam irradiation

被引：28
|
作者：
Ribeiro, A. A. [1 ]
Vaz, L. G. [2 ]
Guastaldi, A. C. [3 ]
Campos, J. S. C. [1 ]
机构：
[1] Univ Estadual Campinas, Sch Chem Engn, Dept Polymer Technol, UNICAMP, BR-13083970 Campinas, SP, Brazil
[2] UNESP, Araraquara Dent Sch, Dept Dent Mat & Prosthodont, BR-14801903 Araraquara, SP, Brazil
[3] UNESP, Inst Chem, Dept Phys Chem, BR-14801970 Araraquara, SP, Brazil
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 24期
关键词：
Polyvinylidene fluoride; Hydroxyapatite; Titanium; Laser beam irradiation; Coating; Adhesion strength; Biomaterial; IN-VITRO; HYDROXYAPATITE; DEPOSITION; TITANIUM; ALLOYS;
D O I：
10.1016/j.apsusc.2012.06.084
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Up to the moment, there is no standardized test for measuring the adhesion strength of polymeric coatings on titanium substrate modified by laser beam irradiation. The present work aimed to assess the adhesion strength of polyvinylidene fluoride (alpha-PVDF)/hydroxyapatite (HA) composite coating on commercially pure titanium (alpha-cp Ti) substrate surface modified by laser beam irradiation, using the three-point bending test. The preparation of coating was carried out by mixing alpha-PVDF pellets dissolved in dimethylacetamide (DMA) with HA/DMA emulsion. The mixture was poured onto the alpha-cp Ti sample and left to dry in an oven. Commercially pure titanium plates were coated with alpha-PVDF/HA composite film, in proportions of 100/00 (PVDF) and 60/40 (PVDF/HA) in weight. The Ti-PVDF/HA samples were subjected to the three-point bending test and analyzed by scanning electron microscopy. According to the results, PVDF and PVDF/HA coatings showed a good adhesion strength on alpha-cp Ti surface, since no detachment was observed. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：10110 / 10114
页数：5
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