A kind of photocured medical catheter hydrophilic lubricating coating and preparation method thereof
一种润滑涂层、医用导管的技术,应用在导管、涂层、医药配方等方向,达到涂层工艺简单易控制、附着力和紫外光固化速度提高、避免化学反应的效果
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Embodiment 1
[0055] Bottom coating configuration: weighing 2.0g of 6-functional polyester acrylic resin, 0.4g of hydroxyethyl methacrylate, 0.15g of polyether modified organosiloxane, photoinitiator 2-hydroxy-2-methylpropiophenone 0.3g, 24g of absolute ethanol, placed in a brown bottle, magnetically stirred for 2h, filtered through a 500-mesh nylon gauze, to obtain a mixed solution of the bottom coating.
[0056] Lubricating coating configuration: weigh 1.0g of polyvinylpyrrolidone, 0.4g of polyvinyl pyridine substances, 0.2g of polyethylene glycol, 0.1g of polyethylene oxide, 12g of water, and 31.3g of anhydrous ethanol, placed in a brown bottle, Magnetic stirring for 1-3 hours, filtered through a 500-mesh nylon gauze, to obtain a mixed solution of lubricating coating.
Embodiment 2
[0058] Primer coating configuration: Weigh 3-functional polyester acrylic resin 1.0g, 6-functional polyester acrylic resin 1.0g, hydroxyethyl methacrylate 0.4g, polyether modified organosiloxane 0.15g, photoinitiator 2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone (IRGACURE 2959) 0.3g, absolute ethanol 24g, placed in a brown bottle, magnetically stirred for 2h, filtered through 500-mesh nylon gauze Filtration to obtain a mixed solution of the bottom coating layer.
[0059] Lubricating coating configuration: weigh 1.0g of polyvinylpyrrolidone, 0.4g of polyvinyl pyridine, 0.2g of polyethylene glycol, 12g of water, and 31.3g of anhydrous ethanol, placed in a brown bottle, magnetically stirred for 1-3h, Filter through a 500-mesh nylon gauze to obtain a mixed solution of lubricating coating.
Embodiment 3
[0061] Primer coating configuration: weigh 1.0g of 3-functional polyester acrylic resin, 0.4 g of 6-functional polyester acrylic resin, 0.6 g of vinylpyrrolidone, 0.15 g of polyether-modified organosiloxane, and 2-hydroxyl photoinitiator -4'-(2-hydroxyethoxy)-2-methylpropiophenone (IRGACURE 2959) 0.3g, absolute ethanol 24g, placed in a brown bottle, magnetically stirred for 2h, filtered through 500-mesh nylon gauze to obtain Base coat mix solution.
[0062] Lubricating coating configuration: weigh 1.0g of polyvinylpyrrolidone, 0.4g of polyvinylpyridine, 8.4g of water, and 31.3g of anhydrous ethanol, placed in a brown bottle, magnetically stirred for 1-3h, and passed through a 500-mesh nylon gauze Filtration to obtain a mixed solution of lubricating coating.
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