Superfine modified aluminum hydroxide flame retardant, preparation method and preparation equipment

[0038] Method for preparing modified ultrafine aluminum hydroxide flame retardant, comprising the steps of:

[0039] Step 1: The surface modifier and dispersing agent are added to water, respectively, and stirring, resulting in a mixed solution;

[0040] Step 2: Put the aluminum hydroxide fine powder and trioxide fine powder into the rolling apparatus for rolling to obtain a crude mixture;

[0041]Step 3: Introducing the crude mixture into a coarse ball mill for ball milling, when the particle size is less than 4 μm, the mixed powder is introduced into the mixer;

[0042] Step 4: The mixed solution is then introduced into the mixer, and the temperature is provided to 75 to 85 ° C, and mixed with the mixed powder to obtain a mixture;

[0043] Step 5: The mixture was introduced into the dryer for drying, and then the dried mixed material was introduced into the fine ball mill for ball milling, until the particle size was less than 1 μm to obtain ultrafine modified aluminum hydroxide fl

[0046] Example 1:

[0047] Ultrafine aluminum-modified flame retardants, parts by mass of the material prepared from: 16 parts aluminum hydroxide powder, 1 part of a surface modifying agent, 4 parts of antimony trioxide powder, 1 part of a dispersant.

[0048] Prepared according to the present embodiment, comprising the steps of:

[0049] Step 1: The surface modifier and dispersing agent are added to water, respectively, and stirring, resulting in a mixed solution;

[0050] Step 2: Put the aluminum hydroxide fine powder and trioxide fine powder into the rolling apparatus for rolling to obtain a crude mixture;

[0051] Step 3: Introducing the crude mixture into a coarse ball mill for ball milling, when the particle size is less than 4 μm, the mixed powder is introduced into the mixer;

[0052] Step Four: The mixed solution was then introduced into the mixer, the temperature was set to 75 ℃, stirred and mixed with a mixed powder to obtain a mixed material;

[0053] Step 5: The mixture

[0054] Example 2:

[0055] Ultrafine aluminum-modified flame retardants, parts by mass of the material prepared from: 18 parts aluminum hydroxide powder, surface modifiers 2, 6 antimony trioxide powder, a dispersing agent.

[0056] Prepared according to the present embodiment, comprising the steps of:

[0057] Step 1: The surface modifier and dispersing agent are added to water, respectively, and stirring, resulting in a mixed solution;

[0058] Step 2: Put the aluminum hydroxide fine powder and trioxide fine powder into the rolling apparatus for rolling to obtain a crude mixture;

[0059] Step 3: Introducing the crude mixture into a coarse ball mill for ball milling, when the particle size is less than 4 μm, the mixed powder is introduced into the mixer;

[0060] Step Four: The mixed solution was then introduced into the mixer, the temperature was set to 80 the mixed powder were mixed and stirred to obtain a mixed material;

[0061] Step 5: The mixture was introduced into the dryer