Novel modified filler and preparation method thereof
A modified and new technology, applied in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc., can solve the problems of poor interception effect of suspended solids, complex production process, and unstable shape, etc., to achieve The effect of low cost, simple production method and low production cost
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Embodiment 1
[0029] The preparation method of the new modified filler is:
[0030] a. Remove impurities and dust from chitosan with a viscosity of 0.25-0.65 Pa·s, sieve and boil for 30 minutes, then rinse with deionized water for 3-5 times, and finally dry for 72 hours with a vacuum drier to obtain the shell Polycan gel; slowly add 30g chitosan gel into 1L lactic acid aqueous solution with a concentration of 0.2mol / L, stir continuously for 4 hours at a temperature of 40-50°C, and then place it for 12 hours to obtain chitosan viscous gel. glue;
[0031] Soak the glass spheres in a 0.2mol / L lactic acid solution at room temperature and stir for 6 hours, then filter and rinse with deionized water and dry to obtain filled glass spheres;
[0032] b. Take 30g of chitosan viscous gel and put it into the lactic acid solution with a concentration of 0.2mol / L, keep the solution temperature at 40-50°C, then add 70g of filler glass balls, and stir continuously for 12 hours until the chitosan viscous g...
Embodiment 2
[0036] The preparation method of the new modified filler is:
[0037] a. Remove impurities and dust from chitosan with a viscosity of 0.25-0.65 Pa·s, sieve and boil for 30 minutes, then rinse with deionized water for 3-5 times, and finally dry for 72 hours with a vacuum drier to obtain the shell Polycan gel: Slowly add 25g of chitosan gel into 1L of 0.3mol / L lactic acid aqueous solution, stir continuously for 6 hours at a temperature of 40-50°C, and then place it for 12 hours to obtain a viscous gel of chitosan. glue;
[0038] Soak the glass spheres in 0.3mol / L lactic acid solution at room temperature and stir for 7 hours, then filter and rinse with deionized water and dry to obtain filled glass spheres;
[0039] b. Put 25g of chitosan viscous gel into lactic acid solution with a concentration of 0.3mol / L, keep the solution temperature at 40-50°C, add 75g of filler glass balls, and stir continuously for 10 hours until the chitosan viscous gel is completely Adhere to the surf...
Embodiment 3
[0042] The preparation method of the new modified filler is:
[0043] a. Remove impurities and dust from chitosan with a viscosity of 0.25-0.65 Pa·s, sieve and boil for 60 minutes, then rinse with deionized water for 3-5 times, and finally dry for 72 hours with a vacuum dryer to obtain the shell Polycan gel; slowly add 28g chitosan gel into 1L lactic acid aqueous solution with a concentration of 0.1mol / L, stir continuously for 5 hours at a temperature of 40-50°C, and then place it for 14 hours to obtain chitosan viscous gel. glue;
[0044] Soak the glass spheres in 0.1mol / L lactic acid solution at room temperature and stir for 7 hours, then filter and rinse with deionized water and dry to obtain filled glass spheres;
[0045] b. Put 28g of chitosan viscous gel into the lactic acid solution with a concentration of 0.1mol / L, keep the solution temperature at 40-50°C, add 72g of filler glass balls, and stir continuously for 14 hours until the chitosan viscous gel All attached to...
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