Preparation method of regenerated cellulose microsphere/solid electrolyte
A technology of solid electrolyte and regenerated cellulose, which is applied in the preparation of microspheres, microcapsule preparations, circuits, etc., can solve the problems of less research on the formation mechanism of the interface of regenerated cellulose balls and internal morphology, avoid the process of programmed cooling, and benefit Preparation, the effect of shortening the preparation time
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[0030] A kind of preparation method of regenerated cellulose microsphere / solid electrolyte of the present invention, specifically comprises the following steps:
[0031] a) Preparation of cellulose solution: the concentration of 50% NMMO / H 2 The O solution was concentrated to 83% to 87% by distillation under reduced pressure at 105°C, and 3% to 8% was weighed (relative to the concentrated NMMO / H 2 O solution) absolute dry slurry (slurry includes dissolving pulp, chemical-mechanical pulp, chemical pulp) is added to the concentrated NMMO / H 2 O solution, and add 0.1% ~ 0.8% (relative to concentrated NMMO / H 2 O solution) propyl gallate was used as an antioxidant, and mechanically stirred at 105°C to obtain an amber cellulose solution.
[0032] The concentration of cellulose solution (dry pulp and NMMO / H 2 The mass ratio of the O solution) is 3% to 8%, and the addition amount of propyl gallate is 0.1 to 1.0 wt% (compared to the absolute dry cellulose content).
[0033] b) Prepa...
Embodiment 1
[0042] A kind of preparation method of regenerated cellulose microsphere / solid electrolyte of the present invention comprises the following steps:
[0043] a) Preparation of cellulose solution:
[0044] 50% NMMO / H 2 The O solution was distilled under reduced pressure at 105 °C for 2.5 h, and concentrated to a concentration of 83%.
[0045] Accurately weigh 1.5g of dry slurry and 48.5g of concentrated NMMO / H 2 The O solution was placed in a three-necked flask, and 0.0015 g of propyl gallate was added as an antioxidant, and mechanically stirred at a temperature of 105° C. and a speed of 600 rpm for 30 min to obtain a 3% cellulose solution.
[0046] b) Preparation of cellulose microspheres:
[0047] Add 1.5g of Span80 and 60g of liquid paraffin into a three-necked flask, and stir at 300rpm for 1h until the mixture is uniform. After heating up to 105°C, 10 mL of cellulose solution was added, and stirring was continued for 0.5 h. Add 200mL of deionized water and 200mL of 20% m...
Embodiment 2
[0052] A kind of preparation method of regenerated cellulose microsphere / solid electrolyte of the present invention comprises the following steps:
[0053] a) Preparation of cellulose solution:
[0054] 50% NMMO / H 2 The O solution was distilled under reduced pressure at 105 °C for 2.5 h, and concentrated to a concentration of 87%.
[0055] Accurately weigh 2g of dry slurry and 48g of concentrated NMMO / H 2 The O solution was placed in a three-necked flask, and 0.01 g of propyl gallate was added as an antioxidant, and mechanically stirred at a temperature of 105° C. and a speed of 600 rpm for 30 min to obtain a 4% cellulose solution.
[0056] b) Preparation of cellulose microspheres:
[0057] Add 4g of Span80 and 60g of liquid paraffin into a three-necked flask, and stir at 600rpm for 1h until the mixture is uniform. After heating up to 105°C, 20 mL of cellulose solution was added, and stirring was continued for 1 h. Add 200mL of deionized water and 200mL of 20% ethanol sol...
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