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Nano-class film-wrapped powder and preparation method thereof

A coated powder, nano-scale technology, applied in the direction of chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of not mentioning the importance of acid-base reaction, difficulty in dispersing ultra-fine powder, etc.

Inactive Publication Date: 2006-12-13
张义纲 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The book "Nanochemistry" published in April 2006, pages 58-65, described in detail the prior art of preparing nanoparticles by solid-phase method, which did not mention the importance of acid-base reaction, and even did not appear "acid-base reaction" these four words
These patents involving aluminum phosphate are all focused on solving the problem of difficult dispersion of ultrafine powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Take 6.78g of aluminum hydroxide and 7.4g of silicon dioxide, mix them evenly, pulverize them in a mechanical pulverizing device at room temperature and undergo a solid-phase acid-base reaction, then add 1g of aluminum phosphate and 1.3g of aluminum silicate that have been mixed and ground together in advance , mix again at room temperature, depolymerize and coat, and dry at 150°C. The obtained nano-aluminosilicate-coated powder is used as a raw material for nano-building materials and nano-ceramics.

Embodiment 2

[0045] Take 3g of iron oxide yellow pigment and 2.4g of silicon dioxide, mix evenly, pulverize in a mechanical pulverizing device at room temperature and undergo a solid-phase acid-base reaction, then add 1g of aluminum phosphate and 0.6g of aluminum hydroxide, mix again at room temperature and Depolymerization and coating, drying at 105°C, the obtained nano-iron silicate yellow coating pigment is used in paints and coatings.

Embodiment 3

[0047] Take 2.83g of chromium trioxide and 8.03g of lead oxide, mix them evenly, pulverize them in a mechanical pulverizer at room temperature and undergo a solid-phase acid-base reaction, then add 1g of aluminum phosphate and 1.08g of aluminum silicate, mix again at room temperature and decompose Coated with polystyrene and dried at 130°C, the obtained environmentally friendly nano-chrome yellow coated pigment is used in paints.

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Abstract

The invention provides the nanometer integument powder which is made at the machinery-chemical action. It has inner core and integument, or inner, shell and integument. The inner core is composed by oxide compound or inorganic oxy salt, shell is composed by inorganic oxy salt, and the integument is composed by aluminum orthophosphate. The powder surface can be carried out anchorage solvating chain segment. The invention also provides the preparing method. The integument powder can be used as coloring agent, strengthening agent, powdered material to be used in coating mixture, rubber, plastic, admixture, ceramics, paper and magnetic material.

Description

technical field [0001] The invention relates to a surface-modified nano-scale inorganic powder and a preparation method thereof (IPC classification C09C01), in particular to a nano-scale inorganic powder coated with an aluminum phosphate coating and a preparation method thereof, and also to This kind of powder is used as filler, reinforcing agent, colorant, rheological agent, adsorption carrier, and powder material in ink, paint, coating, rubber, plastic, resin, sealant, adhesive, drilling mud, culture and education. Articles, daily chemicals, paper, textiles, food, medicine, magnetic materials, electronic materials, electromagnetic wave shielding materials, artificial biological tissues. Background technique [0002] Nano-scale inorganic powder is a frontier research field in current materials science. Most of the existing technologies for preparing nano-scale inorganic powders are carried out in gas phase or liquid phase. In 1999, there was a report on the synthesis of n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C3/06C09C1/00
Inventor 张义纲张渺
Owner 张义纲
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