Hydrophilic antibacterial glass slide with bionic structure and preparation method of hydrophilic antibacterial glass slide
A glass slide and hydrophilic technology, applied in the field of antibacterial materials, to achieve good sterilization effect, low price and strong practicability
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[0033] The biomimetic structure hydrophilic antibacterial glass slide of the present invention uses laser etching to prepare a large-area bionic micro-nano protrusion structure on the surface of the glass slide, and the surface is pretreated by a silane coupling agent through plasma or piranha solution. A copolymer of quaternary ammonium salts is covalently attached to the surface of a glass slide. The preparation method of the bionic structure hydrophilic antibacterial glass slide of the present invention comprises the following steps:
[0034] Ⅰ. Etching the bionic micro-nano structure on the surface of the glass slide with a laser: laser processing the surface of the slide glass with a laser engraving machine;
[0035] Ⅱ. Treat the biomimetic structure slide with piranha solution or plasma to make its surface contain a large amount of hydroxyl groups: prepare the slide, perform surface pretreatment and functionalization on the slide;
[0036] III. In the aqueous solution, ...
Embodiment 1
[0047] A method for preparing a bionic structure hydrophilic antibacterial glass slide, comprising the steps of:
[0048] Ⅰ. Preparation of the micro-nano structure on the surface of the glass slide: use a laser engraving machine to perform laser processing on the surface of the glass slide, the laser energy intensity is 500w, and the scanning speed is 500mm / s;
[0049] Ⅱ. Slide pretreatment: H 2 SO 4 and H 2 o 2 Prepare the piranha solution with a volume ratio of 3:2, put the prepared biomimetic structured glass slide into the piranha solution and etch for 15 minutes, wash with water three times after the reaction, and dry with N2 to make the surface of the slide hydroxylated;
[0050] Ⅲ. Coating of silane coupling agent: add 3-aminopropyltrimethoxysilane as a silane coupling agent into water to disperse, so that its concentration is 7.5wt% aqueous solution, and then put the mixed solution into an ultrasonic disperser Sonicate for 30 minutes, then put the hydroxylated gla...
Embodiment 2
[0054] A method for preparing a bionic structure hydrophilic antibacterial glass slide, comprising the steps of:
[0055] Ⅰ. Preparation of the micro-nano structure on the surface of the glass slide: use a laser engraving machine to carry out laser processing on the surface of the glass slide, the laser energy intensity is 300w, and the scanning speed is 400mm / s;
[0056] Ⅱ. Slide pretreatment: put the prepared slide into the piranha solution for etching for 15 minutes, wash with water three times after the reaction, and dry with N2 to make the surface of the slide hydroxylated;
[0057] Ⅲ. Coating of silane coupling agent: Add 3-aminopropyltrimethoxysilane as a silane coupling agent into water to disperse, so that its concentration is 12.5wt% aqueous solution, and then put the mixture into an ultrasonic disperser Sonicate for 30 minutes, then put the hydroxylated glass slide into the mixture, react at 80°C for 8 hours, then take it out and wash with water to remove unreacted ...
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