Method of preparing compound osseous tissue renovating material interconsistency agent of polylactic acid/hydroxyapatite
A technology of hydroxyapatite and repair material, which is applied in medical science, prosthesis and other directions, can solve the problems of poor compatibility between natural polymer materials and hydroxyapatite, and low mechanical properties of composite materials, and achieves easy industrial production and improved mechanical properties. Mechanical properties, improve the effect of interfacial interaction
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Embodiment 1
[0020] Example 1: Using vinyltrimethoxysilane as a coupling agent to treat hydroxyapatite.
[0021] Reflux 10 g of micron-sized hydroxyapatite in 0.1 g of vinyltrimethoxysilane in 10 ml of 80% ethanol solution for 40 hours, and detect the treated hydroxyapatite surface with Fourier transform infrared spectroscopy. Fourier transform infrared spectroscopy is shown as figure 1 As shown, 3000cm -1 The stretching vibration peaks of C-H appear on the left and right, and it is confirmed by Fourier transform infrared spectroscopy that vinyltrimethoxysilane containing ethylene double bonds that can react with free radicals has been introduced on the surface of hydroxyapatite.
Embodiment 2
[0022] Example 2: Treating hydroxyapatite with γ-methacryloxypropyltriethoxysilane and vinyltrimethoxysilane as coupling agents.
[0023] Reflux 10g of micron-sized hydroxyapatite in 10ml of 50% ethanol solution of 0.5g γ-methacryloxypropyltriethoxysilane and 0.5g vinyltrimethoxysilane for 12 hours, and use Fourier transform infrared The treated hydroxyapatite surface was detected spectroscopically by Fourier transform infrared spectroscopy as figure 1 As shown, 3000cm -1 The stretching vibration peaks of C-H appear on the left and right, and it is confirmed by Fourier transform infrared spectroscopy that γ-methacryloxypropyltriethoxysilane containing ethylene double bonds that can react with free radicals has been introduced on the surface of hydroxyapatite.
Embodiment 3
[0024] Example 3: Treatment of hydroxyapatite with isopropyl bis(diethylene glycol oleate)aluminate.
[0025] 10g of nano-sized hydroxyapatite was refluxed in 10ml of 10% ethanol solution of 0.3g bis(diethylene glycol oleate)aluminate in 10% ethanol solution for 24 hours, and the processed hydroxyapatite was detected by Fourier transform infrared spectroscopy surface, Fourier transform infrared spectroscopy with figure 1 similar, at 3000cm -1 The stretching vibration peak of carbon and hydrogen appeared around the wave number, and it was confirmed by Fourier transform infrared spectroscopy that the free radical-reactable bis(diethylene glycol oleate)aluminate isopropyl aluminate containing ethylene double bonds has been introduced on the surface of hydroxyapatite. ester.
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