Method for preparing polymer/inorganic metal oxide ternary composite material
A technology of inorganic metals and composite materials, which is applied in the field of preparation of polymer/inorganic metal oxide ternary composite materials, can solve problems such as limitations, and achieve the effect of overcoming the difference of reaction rates and simple operation.
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Embodiment 1
[0025] Dissolve and disperse inorganic alkoxide: 4g isopropyl titanate and 6g n-butyl zirconate in isopropanol solvent, stir and mix evenly, the molar ratio of isopropanol and inorganic alkoxide is 4:1, stirring time is 30min. Add an appropriate amount of glacial acetic acid to adjust the pH value to about 3 to promote the anhydrous alcoholysis reaction of the alkoxide. The reaction process is exothermic. Continue to stir and react at room temperature for 1 hour to obtain a transparent light yellow inorganic precursor.
[0026] Get simultaneously the methyl methacrylate monomer of 5.84g, the silane coupling agent trimethoxysilyl propyl methacrylate of 4.16g and initiator benzoyl peroxide 0.7g, make solvent with the THF that removes water, The polymerization reaction was carried out at 60° C. under the protection of nitrogen, and the prepolymer of methyl methacrylate and silane coupling agent was obtained by reacting for 1 h. Add the reacted inorganic precursor dropwise to the ...
Embodiment 2
[0028] Dissolve and disperse inorganic alkoxide: 2.5g isopropyl titanate and 2.5g aluminum isopropoxide in ethanol solvent, stir and mix evenly, the molar ratio of ethanol and inorganic alkoxide is 4:1, stirring time is 30min. An appropriate amount of glacial acetic acid was added to promote the anhydrous alcoholysis reaction of the alkoxide, and stirring was continued at room temperature for 1 hour to obtain a transparent inorganic precursor.
[0029]At the same time, take 7.65g of butyl methacrylate monomer, 6.35g of silane coupling agent hydroxyethyl methacrylate and 0.927g of initiator benzoyl peroxide, use dehydrated tetrahydrofuran as solvent, and carry out under nitrogen protection at 60°C Polymerization reaction, reaction 1h to obtain the prepolymer of butyl methacrylate and silane coupling agent.
[0030] Add the reacted inorganic precursor dropwise to the prepolymer under vigorous stirring, slowly add dropwise, and finish adding in about 30 minutes, then continue to ...
Embodiment 3
[0032] Dissolve and disperse inorganic alkoxide: 10.71g n-butyl cerate and 5.29g n-butyl zirconate in n-butanol solvent, stir and mix evenly, the molar ratio of n-butanol and inorganic alkoxide is 4:1, and the stirring time is 30min . An appropriate amount of glacial acetic acid was added to promote anhydrous alcoholysis reaction of the alkoxide, and the reaction was continued at room temperature for 1 h under stirring to obtain a transparent inorganic precursor.
[0033] At the same time, take 2.91g of methyl acrylate monomer, 1.81g of silane coupling agent γ-aminopropyltriethoxysilane and 0.27g of initiator benzoyl peroxide, and use tetrahydrofuran as a solvent to remove water, and nitrogen protection Polymerization was carried out at 60°C for 1 hour to obtain a prepolymer of methyl acrylate and silane coupling agent.
[0034] Add the reacted inorganic precursor dropwise to the prepolymer under vigorous stirring, slowly add dropwise, and finish adding in about 30 minutes, t...
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Abstract
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