Preparation method of phenolic resin microballoons and method for preparing phenolic resin-based carbon spheres by use of preparation method

The technology of phenolic resin and microspheres is applied in the field of preparation of resin microspheres and carbon spheres, which can solve the problems of high cost, complicated preparation method, difficult control of the diameter of microspheres, etc. simple craftsmanship

Inactive Publication Date: 2012-02-15
HEILONGJIANG UNIV
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Problems solved by technology

[0004] The present invention aims to solve the problems that the preparation method of the existing phenolic resin microspheres and phenolic resin-based carbon spheres is complicated, the cost

Method used

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  • Preparation method of phenolic resin microballoons and method for preparing phenolic resin-based carbon spheres by use of preparation method
  • Preparation method of phenolic resin microballoons and method for preparing phenolic resin-based carbon spheres by use of preparation method
  • Preparation method of phenolic resin microballoons and method for preparing phenolic resin-based carbon spheres by use of preparation method

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Example Embodiment

[0010] Specific embodiment 1: The preparation method of phenolic resin microspheres in this embodiment is carried out according to the following steps: Step 1. According to the molar ratio of resorcinol and phenol of 1:0-9, resorcinol and formaldehyde The molar ratio of resorcinol to sodium carbonate is 1:1.2~2.7, the molar ratio of resorcinol to sodium carbonate is 1:0~0.002, the molar ratio of resorcinol to sodium bicarbonate is 1:0~0.002, and the molar ratio of resorcinol to sodium bicarbonate is 1:0~0.002. The molar ratio of water is 1:16-60. Mix resorcinol, phenol, formaldehyde, sodium carbonate, sodium bicarbonate and water, and stir for 10-30min under the condition of 15-30r / min to obtain a reaction solution; step 2. Place the reaction solution of step 1 in an oil bath, stir at 20-30 r / min while heating to 70-150°C and keep it for 4-6 hours to obtain a phenolic resin microsphere suspension; step 3. The phenolic resin microsphere suspension is suction filtered, washed wit...

Example Embodiment

[0012] Specific embodiment two: this embodiment is different from specific embodiment one in that the molar ratio of resorcinol to phenol in step one is 1:0.4-6. The other steps and parameters are the same as in the first embodiment.

Example Embodiment

[0013] Specific embodiment three: This embodiment is different from specific embodiment one in that the molar ratio of resorcinol to phenol in step one is 1:5. The other steps and parameters are the same as in the first embodiment.

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Abstract

A preparation method of phenolic resin microballoons and a method for preparing phenolic resin-based carbon spheres by the use of the preparation method relate to resin microballoons and a preparation method of carbon spheres. The invention aims to solve the problem that present preparation method of phenolic resin microballoons and that of phenolic resin-based carbon spheres are complex and require high cost with the sphere diameter of microballoons being hard to control. The preparation method of the phenolic resinmicroballoons comprises the following steps of: 1, mixing resorcinol, phenol,formaldehyde, sodium carbonate, sodium bicarbonate and water with stirring; 2, placing into an oil bath and heating for 4-6 hours; 3, carrying out pumping filtration, washing by the use of water, anddrying to obtain the phenolic resin microballoons. The preparation method of the phenolic resin-based carbon spheres comprises the following steps of: putting the phenolic resinmicroballoons into a tubular furnace, heating to 700-1000 DEG C in shielding gas atmosphere and maintaining for 2-6 hours to obtain the phenolic resin-based carbon spheres. The dynamic suspension polymerization method is simple and the reaction condition is easy to control; phenol is introduced into the raw materials so as to reduce the reaction cost; the phenolic resin microballoons and the phenolic resin-based carbonspheres with random sphere diameter between 10nm to 10 microns can be prepared.

Description

technical field [0001] The invention relates to a preparation method of resin microspheres and carbon spheres Background technique [0002] Supercapacitor is a new type of energy storage element between battery and traditional dielectric capacitor, with high specific energy, good reversibility and long cycle life, with its potential application in hybrid or pure electric vehicles as the background And attract attention. With the continuous improvement of the capacity of supercapacitors, the requirements for the storage capacity of electrode materials are also getting higher and higher. It is a new attempt to use phenolic resin-based carbon spheres after carbonization of phenolic resin microspheres as supercapacitor electrode materials, which have low density, low thermal conductivity, excellent thermal stability, low temperature and thermal conductivity, and can absorb electromagnetic waves. It is a new type of electrode material with superior performance. [0003] The ex...

Claims

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Application Information

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IPC IPC(8): C08G8/24C08G8/22C08G8/10C01B31/02
Inventor 金政李博弘卜亚男
Owner HEILONGJIANG UNIV
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