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Nano-aluminium oxide paste composition and its preparation method

A technology of nano-alumina and composition, applied in the nano field, can solve the problems such as dispersing nano-alumina which are not mentioned, and achieve the effect of satisfying storage stability, high solid content and good stability

Inactive Publication Date: 2006-02-15
中科纳米涂料技术(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

How to disperse nano-alumina is not mentioned in these patents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 20 g of xylene, 10 g of n-butyl acetate, 10 g of methoxypropyl acetate, and 10 g of No. 200 solvent oil in a 300 ml beaker, add 6.82 g of polymer dispersant Homogenol L-1820, 3.41 g of polymer dispersant Dispers610, 3.41g of polymer dispersant Solsperse24000, then add 118.18g of 60nm nano-alumina, disperse with a high-speed disperser at 1600rpm for 40 minutes, and grind for 12 hours with a ball mill to make a nano-alumina slurry with a weight ratio of about 65% of nano-alumina . The total amount of polymer dispersant in the nano-alumina slurry is about 7.5%.

Embodiment 2

[0022] The preparation method of nano-alumina slurry is the same as in Example 1, adjusting the addition of polymer dispersant Homogenol L-1820, Solsperse24000, Dispers610 and nano-alumina, so that the total amount of polymer dispersant is 1.2%, wherein polymer dispersant The weight ratio among Homogenol L-1820, Solsperse24000 and Dispers610 is the same as in Example 1, and the nano-alumina slurry having a weight ratio of 65% of nano-alumina is made.

Embodiment 3

[0024] The preparation method of nano-alumina slurry is the same as in Example 1, adjusting the addition of polymer dispersant Homogenol L-1820, Solsperse24000, Dispers610 and nano-alumina, so that the total amount of polymer dispersant is 13.5%, wherein polymer dispersant The weight ratio among Homogenol L-1820, Solsperse24000 and Dispers610 is the same as in Example 1, and the nano-alumina slurry having a weight ratio of 65% of nano-alumina is made.

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Abstract

A nano alumina slurry composition for ceramics, paint, ink, etc is prepared from nano alumina (150 nm), high-molecular disperser, and solvent through sequentially and proportionally adding said disperser and alumina to solvent, high-speed dispersing at 400-3000 rpm for 10-60 min, and grinding for 20 min-24 hr. Its advantages are high content of solid, low viscosity and high stability.

Description

technical field [0001] The invention relates to nanotechnology, in particular to a nano-alumina paste composition and a preparation method thereof. Background technique [0002] Nano-alumina has important applications in ceramics, coatings, fibers, rubber and other fields. It has been found that nano-Al 2 o 3 The powder has a strong absorption capacity for ultraviolet light below 250nm. If it is added to the coating, it may improve the anti-aging ability of the organic coating; if it is added to rubber or plastic, it can improve their wear resistance; if it is added to sunscreen oil , cosmetics, it can improve its anti-ultraviolet performance. containing nano-Al 2 o 3 Clothes made of fiber have infrared absorption function. At the same time nano-Al 2 o 3 The polishing liquid can also be used for polishing high-grade optical glass and precious stones. However, due to the large specific surface area and many suspended bonds on the surface of nano-alumina, aggregates a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C3/10C09C1/40
Inventor 刘福春韩恩厚柯伟
Owner 中科纳米涂料技术(苏州)有限公司
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