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A kind of preparation method of conductive potassium titanate whisker

A technology of potassium titanate whiskers and conductive potassium titanate, applied in chemical instruments and methods, single crystal growth, single crystal growth and other directions, can solve the problems of uneven adhesion layer, uneven whiskers, etc., to reduce consumption , the effect of reducing the dosage

Inactive Publication Date: 2019-05-17
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is: because the conductive powder is connected to the whisker by adhesion, the whisker becomes not smooth, and the adhesion layer may also be uneven, but as long as the process is well controlled and can be matched with downstream products, the specific resistivity Large conductive whiskers have wider market prospects

Method used

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  • A kind of preparation method of conductive potassium titanate whisker

Examples

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Effect test

Embodiment 1

[0016] Embodiment 1: Get 10 grams of potassium titanate whiskers; add 50 milliliters of deionized water; 2 grams of titanium dioxide conductive powder, add SnCl under stirring 4 .5H 2 O2.6 g; then add SbCl 3 0.13 g; add 0.1 g of niobium pentoxide; finally add 0.5 g of zinc, and start recording the reaction time when the zinc is added. After reacting for 180 minutes, adjust the pH value to 2.4 with ammonia water, and use suction filtration equipment to obtain adhering conductive titanium dioxide powder Potassium titanate whiskers in the body, after removing the filtrate, wash twice with deionized water 5 times the volume of the filter cake for use. The wet material of potassium titanate whiskers adhering to the conductive titanium dioxide powder must be dried. It is carried out at 130°C and the drying time is 13 hours. The dried material was heated from room temperature to 220°C and roasted for 5.0 hours to obtain loose massive conductive potassium titanate whiskers, which w...

Embodiment 2

[0017] Embodiment 2: Get 10 grams of potassium titanate whiskers; add 50 milliliters of deionized water; 5 grams of titanium dioxide conductive powder, add SnCl under stirring 4 .5H 2 O 3 g; then add SbCl 3 0.2 g; add 0.3 g of niobium pentoxide; finally add 1 g of zinc, and start recording the reaction time when the zinc is added. After reacting for 100 minutes, adjust the pH value to 3 with ammonia water, and use suction filtration equipment to obtain adhering conductive titanium dioxide powder Potassium titanate whiskers in the body, after removing the filtrate, wash twice with deionized water 4 times the volume of the filter cake for use. The wet material of potassium titanate whiskers adhering to the conductive titanium dioxide powder must be dried. It is carried out at 150°C, and the drying time is 7 hours. The dried material was heated from room temperature to 300°C and roasted for 4.0 hours to obtain loose massive conductive potassium titanate whiskers, which were pu...

Embodiment 3

[0018] Example 3: Get 10 grams of potassium titanate whiskers; add 50 milliliters of deionized water; 10 grams of titanium dioxide conductive powder, add SnCl under stirring 4 .5H 2 O 4 g; then add SbCl 3 0.34 grams; add 0.35 grams of niobium pentoxide; finally add 1.8 grams of zinc, and start recording the reaction time when the zinc is added. After reacting for 160 minutes, adjust the pH value to 3.2 with ammonia water, and obtain adhesion conductive titanium dioxide powder with suction filtration equipment. Potassium titanate whiskers in the body, after removing the filtrate, wash twice with deionized water 4 times the volume of the filter cake for use. The wet material of potassium titanate whiskers adhering to the conductive titanium dioxide powder must be dried. It is carried out at 140°C, and the drying time is 7.5 hours. The dried material was heated from room temperature to 340°C and roasted for 4.5 hours to obtain loose massive conductive potassium titanate whiske...

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Abstract

The invention provides an electric conduction potassium titanate crystal whisker preparation method, which is characterized by comprising: taking a potassium titanate crystal whisker, adding an appropriate amount of deionized water, adding electric conduction titanium dioxide powder according to a certain ratio, adding a tin salt, an antimony salt and diniobium pentaoxide according to a certain ratio under stirring, adding an appropriate amount of a reducing agent (zinc, magnesium, iron or a mixture thereof), carrying out a reaction for 60-180 min after adding the reducing agent, adjusting the pH value to 2-4 with ammonia water, separating with a centrifuge or suction filtration equipment to obtain the electric conduction titanium dioxide powder-adhering potassium titanate crystal whisker, washing 2 times, drying for 6-13 h at a temperature of 130-180 DEG C, and calcining for 2.0-5.0 h at a temperature of 220-350 DEG C to obtain the potassium titanate crystal whisker.

Description

technical field [0001] The invention belongs to the field of preparation of functional materials, in particular to a preparation method of conductive potassium titanate whiskers. Background technique [0002] Potassium titanate whiskers have four crystal forms, usually with K 2 O.nTiO 2 To represent its composition, among them, n=1, 2, 4, 6, 8, they have significant differences in structure and performance, among which potassium titanate whiskers of six titanium are used more, potassium titanate whiskers have high resistance Thermal, high wear resistance, corrosion resistance, low thermal conductivity and other characteristics, has a good application prospect in the fields of composite material reinforcement, friction materials, porous ceramics, reinforced alloys, heat insulation and heat-resistant materials, etc., due to its good Stability and good compatibility with resins are also widely concerned in the coatings field. Composite materials and high-end coatings (such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/32C30B29/62C30B33/00
CPCC30B29/32C30B29/62C30B33/00
Inventor 邓昭平周茜洋杨倩
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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