A reinforcement solution for the protection of paper cultural relics
A technology of paper cultural relics and reinforcement liquid, which is applied in post-processing of waste paper, post-processing of printing, printing, etc., can solve the problems of low anti-ultraviolet light performance, poor use effect, poor permeability, etc., and achieve scientific and reasonable composition , Abundant raw materials, easy production and preparation
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Embodiment 1
[0010] Embodiment 1: A kind of reinforcing liquid that is used for the protection of paper cultural relics is made of the following raw materials by weight percentage: 40g of hexamethylene diisocyanate trimer, 0.5g of nano silicon dioxide, 0.1g of dibutyltin dilaurate g and N,N-dimethylformamide (DMF) 30g, wherein, put the nano-silica in a vacuum drying oven, dry for 10-24h, and remove the moisture to obtain dry nano-silica; Add methylene diisocyanate trimer to N,N-dimethylformamide (DMF), heat to 50°C to dissolve, keep warm for 5~10min to obtain a mixed solution; add dry nano-silica to the mixed solution , and add dibutyltin silicate in February, raise the temperature to 70°C, carry out the reaction, measure the content of isocyanate group (-NCO) every hour, when the weight content of isocyanate group (-NCO) reaches 19%, stop the reaction and depressurize The N,N-dimethylformamide (DMF) is distilled off to obtain the reinforcing solution of the present invention.
Embodiment 2
[0011] Embodiment 2: a kind of reinforcing liquid for the protection of paper cultural relics is made of the following raw materials in weight percent: 30 g of hexamethylene diisocyanate trimer, 1.0 g of nano silicon dioxide, 0.1 g of dibutyltin dilaurate g and N,N-dimethylformamide (DMF) 30g, wherein, put the nano-silica in a vacuum drying oven, dry for 10-24h, and remove the moisture to obtain dry nano-silica; Add methylene diisocyanate trimer to N,N-dimethylformamide (DMF), heat to 50°C to dissolve, keep warm for 5~10min to obtain a mixed solution; add dry nano-silica to the mixed solution , and add dibutyltin silicate in February, raise the temperature to 70°C, carry out the reaction, measure the content of isocyanate group (-NCO) every hour, when the weight content of isocyanate group (-NCO) reaches 16%, stop the reaction and depressurize The N,N-dimethylformamide (DMF) is distilled off to obtain the reinforcing solution of the present invention.
Embodiment 3
[0012] Embodiment 3: A kind of reinforcing liquid that is used for the protection of paper cultural relics is the following raw materials by weight percent: 50g of hexamethylene diisocyanate trimer, 1.5g of nano silicon dioxide, 0.1g of dibutyltin dilaurate g and N,N-dimethylformamide (DMF) 30g, wherein, put the nano-silica in a vacuum drying oven, dry for 10-24h, and remove the moisture to obtain dry nano-silica; Add methylene diisocyanate trimer to N,N-dimethylformamide (DMF), heat to 50°C to dissolve, keep warm for 5~10min to obtain a mixed solution; add dry nano-silica to the mixed solution , and add dibutyltin silicate in February, raise the temperature to 70°C, carry out the reaction, measure the content of isocyanate group (-NCO) every hour, when the weight content of isocyanate group (-NCO) reaches 27%, stop the reaction and depressurize The N,N-dimethylformamide (DMF) is distilled off to obtain the reinforcing solution of the present invention.
[0013] When using th...
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