Synthesis method for producing potassium titanate series crystal whisker and titanium dioxide crystal whisker products

A technology of titanium dioxide and potassium titanate, which is applied in the field of synthesis and preparation of inorganic salt series whiskers, can solve the problems of incomplete and uniform whiskers, and achieve the effect of complete and uniform unwoven whiskers, reliable process and good quality

Active Publication Date: 2010-03-10
SHANGHAI JINGXU COMPOSITE MATERIAL +2
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AI Technical Summary

Problems solved by technology

This method not only reduces the production cost of potassium titanate series whiskers and titanium dioxide whiskers, but also has simple production process and safe operation, and also solves the quality problem of incomplete and uniform whiskers in industrial production

Method used

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Embodiment Construction

[0014] A synthesis and preparation method for producing potassium titanate series whiskers and titanium dioxide whiskers, which adopts a process method of slow cooling sintering and crystallization to synthesize and prepare potassium titanate series whiskers and titanium dioxide whiskers, specifically including the following technical process scheme:

[0015] (1) Mixing: After weighing the titanium source (TiO2) and potassium source (K2O) in a molar ratio of 1:1.8 to 2.1, mix them mechanically to make a mixed raw material;

[0016] (2) Slow-cooling sintering: put the above-mentioned mixed raw materials in a crucible container, put them into a box furnace or tunnel kiln with a temperature of ≤50°C, and gradually heat up to 600-1300°C for sintering, so that the raw materials are sintered into a melt, The residence time is 30 to 180 minutes, and the sintered molten body is placed in the kiln to cool naturally and slowly with the furnace temperature, making it a light yellow or whi...

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Abstract

The invention provides a potassium titanate series whisker by slow cooling sintering crystallization method and a synthetic method of titanium dioxide whisker. First, the titanium raw materials, the kalium raw materials and the cosolvent are mixed into the crucible, and the crucible puts into the kiln gradually warming up 600-1300[deg.] C sintering; it which of temperature is slow cooling following the kiln temperature is formed the crystallization spot adjunct; the crystallization spot adjunct is decomposed naturally 2-10 days in the drying room of the humidity 50-100% and the temperature 50-300[deg.] C, to form the complete uniform acicular fibrous; it puts into the 80-102[deg.] C hot-water reactor, by adjusting the pH value of control response solution and the reaction time, then obtains a variable conversion stereotypia of two, four, six or eight potassium titanate whisker or titanium dioxide whisker after washing, dehydration and drying; it is placed into the crucible, then gradually warming up to 600-1300[deg.] C high temperature sintering in the kalium, obtains a finished product of variable conversion stereotypia of two, four, six or eight potassium titanate whisker or titanium dioxide whisker about the length of 50-100 micron and the diameter of 5-10 micron.

Description

technical field [0001] The invention belongs to a synthetic preparation method which is generally applicable to the production of inorganic salt series whiskers. The invention particularly provides a synthesis and preparation method for producing potassium titanate series whiskers and titanium dioxide whiskers. Background technique [0002] With the continuous deepening of research on potassium titanate whiskers, people are more interested in the excellent mechanical, physical and chemical properties of potassium titanate whiskers, as well as their high infrared reflectivity, low thermal conductivity at high temperatures, high temperature resistance, and corrosion resistance. Resistance, wear resistance and other characteristics, with a more in-depth understanding and mastery. At present, Japan has not only produced potassium titanate whisker series products on an industrial scale, but also used potassium titanate whisker as a resin-based and ceramic-based toughening and re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/32C30B29/16C30B29/62
Inventor 张毅赵力力颜永根伊俊林余胜宇马玉馨
Owner SHANGHAI JINGXU COMPOSITE MATERIAL
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