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A kind of preparation method of organic-inorganic hybrid composite particles

A hybrid composite and inorganic technology, applied in dyeing low molecular weight organic compound treatment, chemical instruments and methods, inorganic pigment treatment, etc., can solve the problem of not considering the surface properties of flame retardants, interface binding methods, etc., to improve compatibility , reduce procedures and costs, improve the effect of flame retardant efficiency

Active Publication Date: 2021-02-05
QINGHAI UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current research mostly adopts the method of directly blending different flame retardants, and the surface properties of the flame retardants and the interface bonding mode between them are not considered when compounding.

Method used

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  • A kind of preparation method of organic-inorganic hybrid composite particles
  • A kind of preparation method of organic-inorganic hybrid composite particles
  • A kind of preparation method of organic-inorganic hybrid composite particles

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Embodiment 1

[0027] Embodiment 1 A method for preparing organic-inorganic hybrid composite particles, comprising the following steps:

[0028] (1) Add one-dimensional magnesium borate to the sodium hydroxide solution with a mass fraction of 3%, and ultrasonically disperse for 20 minutes at a frequency of 35KHz to activate the surface of the one-dimensional magnesium borate to obtain a magnesium borate slurry with a mass fraction of 10%.

[0029] (2) Add solid sodium metaaluminate to the magnesium borate slurry, stir at 800rpm / min to dissolve it, and obtain slurry A.

[0030] Among them: the mass ratio of sodium metaaluminate to one-dimensional magnesium borate is 1:30.

[0031] (3) Under 800rpm / min mechanical stirring, add ethyl acetate dropwise to slurry A at a speed of 10g / min, after the dropwise addition, hydrolyze for 1 hour to obtain slurry B, so as to realize the self-assembly of aluminum hydroxide on the surface of magnesium borate.

[0032] Among them: the mass ratio of ethyl acet...

Embodiment 2

[0038] Embodiment 2 A preparation method of organic-inorganic hybrid composite particles, comprising the following steps:

[0039] (1) Add one-dimensional magnesium borate to the potassium hydroxide solution with a mass fraction of 2%, and ultrasonically disperse at a frequency of 20KHz for 15 minutes to activate the surface of the one-dimensional magnesium borate to obtain a magnesium borate slurry with a mass fraction of 5%.

[0040] (2) Add solid sodium metaaluminate to the magnesium borate slurry, stir at 500rpm / min to dissolve it, and obtain slurry A.

[0041] Among them: the mass ratio of sodium metaaluminate to one-dimensional magnesium borate is 1:50.

[0042] (3) Under 500rpm / min mechanical stirring, dropwise add ethyl acetate to the slurry A at a speed of 5g / min, after the dropwise addition, hydrolyze for 0.5h to obtain the slurry B, thereby realizing the self-assembly of aluminum hydroxide on the surface of magnesium borate .

[0043] Among them: the mass ratio of...

Embodiment 3

[0048] Embodiment 3 A method for preparing organic-inorganic hybrid composite particles, comprising the following steps:

[0049] (1) Add one-dimensional magnesium borate to ammonia water with a mass fraction of 5%, and ultrasonically disperse for 30 minutes at a frequency of 50KHz to activate the surface of one-dimensional magnesium borate to obtain a magnesium borate slurry with a mass fraction of 15%.

[0050] (2) Add solid sodium metaaluminate to the magnesium borate slurry, stir at 1000rpm / min to dissolve it, and obtain slurry A.

[0051] Among them: the mass ratio of sodium metaaluminate to one-dimensional magnesium borate is 1:10.

[0052] (3) Under mechanical stirring at 1000rpm / min, add ethyl acetate dropwise to slurry A at a speed of 15g / min, and after the dropwise addition, hydrolyze for 2 hours to obtain slurry B, thereby realizing the self-assembly of aluminum hydroxide on the surface of magnesium borate.

[0053] Among them: the mass ratio of ethyl acetate to sodi...

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Abstract

The invention relates to a method for preparing organic-inorganic hybrid composite particles, comprising the following steps: (1) adding one-dimensional magnesium borate to lye, dispersing by ultrasonic waves, activating the surface of one-dimensional magnesium borate, and obtaining a mass fraction of 5% to 15% % of magnesium borate slurry; (2) solid sodium metaaluminate is added to the magnesium borate slurry, and stirred to dissolve to obtain slurry A; (3) under mechanical stirring, ethyl acetate is added dropwise in the slurry A, After the dropwise addition, the slurry B was obtained by hydrolysis for 0.5~2h; (4) under mechanical stirring, the organic phosphate ethanol solution was added dropwise to the slurry B to obtain the slurry C; (5) the slurry C was transferred to the reaction kettle, Naturally cool to room temperature after hydrothermal reaction, and then filter, wash, and dry in sequence to obtain organic-inorganic hybrid composite particles. The method of the invention is easy to implement, and the obtained composite particles have enhanced properties, can effectively improve the flame-retardant efficiency, and enhance interface compatibility and binding force.

Description

technical field [0001] The invention relates to the field of chemical material preparation, in particular to a method for preparing organic-inorganic hybrid composite particles. Background technique [0002] Aluminum hydroxide has the functions of flame retardancy, smoke elimination and filling. It is an environmentally friendly green flame retardant. It has a wide range of applications in electronics, transportation, plastics and rubber industries. It is currently a hot spot in research and development. One of the inorganic flame retardants. However, the surface of aluminum hydroxide is hydrophilic and oleophobic, and it is easy to agglomerate when added to lipophilic and hydrophobic polymers, and it is difficult to form a good bond and bond at the interface, resulting in a decrease in the mechanical properties of the polymer; in addition, aluminum hydroxide mainly absorbs heat through decomposition, Decomposition products water vapor dilutes combustible gases and Al 2 o ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/40C09C3/06C09C3/08C08K9/02C08K9/04C08K3/22C08L23/08
CPCC08K3/22C08K9/02C08K9/04C08K2003/2227C08L23/0853C08L2201/02C09C1/407C09C3/006C09C3/06C09C3/08
Inventor 朱东海孟庆芬兰生杰党力吕智慧杨林博
Owner QINGHAI UNIVERSITY