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Aluminum hydroxide, aluminum hydroxide slurry and resin composition containing the same, and method for producing the same

A technique for producing aluminum hydroxide and its manufacturing method, which is applied in the fields of alumina/hydroxide preparation, alumina/aluminum hydroxide, chemical instruments and methods, etc., which can solve the problems that it is difficult to obtain sufficient surface hardness and achieve improved The effect of surface hardness

Inactive Publication Date: 2005-06-01
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the known methods, it is difficult to make articles with sufficient surface hardness from the resin composition

Method used

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  • Aluminum hydroxide, aluminum hydroxide slurry and resin composition containing the same, and method for producing the same
  • Aluminum hydroxide, aluminum hydroxide slurry and resin composition containing the same, and method for producing the same
  • Aluminum hydroxide, aluminum hydroxide slurry and resin composition containing the same, and method for producing the same

Examples

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Effect test

example 1

[0051] [Preparation of Alumina Intermediate]

[0052] Alumina ("C-31" product manufactured by Sumitomo Chemical Company, whose main crystal phase is gibbsite) is ground with a vibrating grinder, and then quickly calcined in the air at 700 degrees Celsius to form oxidation Aluminum intermediate, its main crystal phase is ρ, average particle diameter is 3 microns, the electron micrograph is as figure 1 Shown.

[0053] [Preparation of Aluminum Hydroxide]

[0054] Mix 56 grams of the above alumina intermediate with 744 grams of water, then add 161.6 grams of magnesium acetate tetrahydrate (reagent grade, manufactured by Wako Pure Chemical Co., Ltd.) and dissolve it to form an aqueous magnesium acetate solution A slurry of alumina intermediates is dispersed in it. The concentration of magnesium acetate in the aqueous solution was 0.94 mol / liter.

[0055] The slurry was placed in a pressure cooker (manufactured by Taiatsu Glass Kogyo K.K.) with a capacity of 1 liter, and subjected to h...

example 2

[0063] The magnesium acetate in Example 1 was replaced by magnesium acetate tetrahydrate (the concentration of magnesium acetate in the aqueous solution was 0.93 mol / L), and the other conditions were the same as in Example 1 to prepare aluminum hydroxide. The formed aluminum hydroxide contains 12wt% of magnesium, its main crystal phase is gibbsite, the main particle shape is needle-like, the average length is 150nm, the average width is 20nm, and the aspect ratio is 7.5. The average particle size of aluminum hydroxide is 3 microns, and the electron micrograph is as follows image 3 Shown. Using the aluminum hydroxide formed by this method, the same resin composition as in Example 1 can be obtained.

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Abstract

An aluminum hydroxide, an aluminum hydroxide slurry and a resin composition containing the aluminum hydroxide, and a production method thereof. The aluminum hydroxide includes at least one metal element in the group consisting of magnesium and manganese, and its main crystal phase is boehmite. The shape of the particles is needle-like, and the average length is about 10nm to about 900nm.

Description

Technical field [0001] The present invention relates to an aluminum hydroxide, an aluminum hydroxide slurry, a resin composition containing the aluminum hydroxide, and a manufacturing method thereof. In particular, it relates to an aluminum hydroxide shape with excellent dispersibility when mixed with a resin, an aluminum hydroxide slurry containing the aluminum hydroxide, and a method for producing the aluminum hydroxide. Background technique [0002] Aluminum hydroxide is a resin filler that can improve the physical properties of the resin (surface hardness, impact resistance, etc.). In order to improve the physical properties of the resin composition kneaded by aluminum hydroxide and resin, there have been many studies on the improvement of dispersion in resins with aluminum hydroxide as a filler (Japanese Patent Application No. 2003-128916). [0003] However, in the known method, it is difficult to obtain an article with sufficient surface hardness from the resin composition....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/02C01G45/00C08J3/20
CPCB82Y30/00C01F7/02C01P2002/54C01P2004/04C01P2004/10C01P2004/50C01P2004/54C01P2004/61C01P2004/62C01P2004/64C01F7/44
Inventor 新叶智
Owner SUMITOMO CHEM CO LTD
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