Polyving alcohol composite hydrogel and preparation method thereof
A composite hydrogel and polyvinyl alcohol technology, which is applied in the field of reinforced and toughened polyvinyl alcohol composite hydrogel and its preparation, polyvinyl alcohol composite hydrogel and its preparation field, can solve the problem of incompatibility between strength and toughness, etc. problems, to achieve the effect of easy delivery and homogenization, easy operation, and improved mechanical properties
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Embodiment 1
[0034] A polyvinyl alcohol composite hydrogel, the raw material components include: 1599 polyvinyl alcohol 30g, sodium alginate 50g, nano clay 3g, nitrile rubber 3g, tris(dioctylpyrophosphoryl)isopropyl titanate 0.15 g, water 200g.
[0035] A preparation method of polyvinyl alcohol composite hydrogel, comprising the following steps:
[0036] A. Raw material preparation
[0037] Surface treatment of inorganic nanoparticles: Disperse 0.15 g of isopropyl tris(dioctylpyrophosphoryl) titanate and 3 g of nanoclay in a solution of distilled water and absolute ethanol with a volume ratio of 1:9, and ultrasonically treat at 50°C for 1 h , and then suction-filtered and dried at 65°C for 2 hours to obtain surface-treated nanoclay.
[0038] Preparation of polyvinyl alcohol solution: Dissolve 30g of 1599 polyvinyl alcohol and 50g of sodium alginate in 200g of distilled water at 70°C, mix well, and cool to room temperature.
[0039] Preparation of boric acid aqueous solution containing c...
Embodiment 2
[0043] A polyvinyl alcohol composite hydrogel, raw material components include: 2499 polyvinyl alcohol 90g, sodium alginate 0.1g, mica powder 2.5g, polyurethane elastomer 18g, g-aminopropyltriethoxysilane 0.075g, 1800g of water.
[0044] A preparation method of polyvinyl alcohol composite hydrogel, comprising the following steps:
[0045] A. Raw material preparation
[0046] Surface treatment of inorganic nanoparticles: Disperse 0.075 g of g-aminopropyltriethoxysilane and 2.5 g of inorganic nanoparticles in a solution with a volume ratio of distilled water and absolute ethanol of 1:9, ultrasonically treat at 50 ° C for 1 h, and then Suction filtration and drying at 60° C. for 2 hours to obtain surface-treated nano-graphite.
[0047] Preparation of polyvinyl alcohol solution: Dissolve 90 g of 2499 polyvinyl alcohol and 0.1 g of sodium alginate in 1800 g of distilled water at 99°C, mix well, and cool to room temperature.
[0048] Preparation of boric acid aqueous solution con...
Embodiment 3
[0052] A polyvinyl alcohol composite hydrogel, the raw material components include: 80g of 1788 polyvinyl alcohol, 16g of sodium alginate, 12g of carbon nanotubes, 4g of polyacrylate rubber, 0.15g of dioctyl phosphate, and 1500g of water.
[0053] A preparation method of polyvinyl alcohol composite hydrogel, comprising the following steps:
[0054] A. Raw material preparation
[0055] Surface treatment of inorganic nanoparticles: Disperse 0.075 g of dioctyl phosphate and 12 g of carbon nanotubes in a solution of distilled water and absolute ethanol with a volume ratio of 1:9, ultrasonically treat at 45°C for 1.5h, then suction filter and dry at 70°C 2h, the surface-treated carbon nanotubes were obtained.
[0056] Preparation of polyvinyl alcohol solution: Dissolve 80 g of 1788 polyvinyl alcohol and 16 g of sodium alginate in 1500 g of distilled water at 80°C, mix well, and cool to room temperature.
[0057] Preparation of boric acid aqueous solution containing curing agent: ...
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