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A kind of cesium tungstate slurry for PVB safety glass and preparation method thereof

A technology of safety glass and cesium tungstate, which is applied in the direction of film/sheet without carrier, non-polymer adhesive additive, adhesive, etc., can solve the problem of large pollution discharge, etc., and achieve simple process steps, excellent transparent heat insulation performance , easy to promote the effect of the application

Active Publication Date: 2021-04-06
长沙壹纳光电材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that the matching cesium tungstate slurry is prepared and stored with volatile organic solvents as the medium, which will cause relatively large pollution emissions during the production of safety glass, one of the purposes of the embodiments of the present invention is to provide A kind of cesium tungstate slurry for PVB safety glass, the second purpose of the embodiment of the present invention is to provide the preparation method of above-mentioned cesium tungstate slurry for PVB safety glass

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  • A kind of cesium tungstate slurry for PVB safety glass and preparation method thereof
  • A kind of cesium tungstate slurry for PVB safety glass and preparation method thereof
  • A kind of cesium tungstate slurry for PVB safety glass and preparation method thereof

Examples

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Effect test

Embodiment 1

[0041] This example provides a cesium tungstate slurry for PVB safety glass, including the following components in mass percentage:

[0042] Cesium tungstate powder 20-40%,

[0043] Dispersant 5-15%,

[0044] Surplus is PVB plasticizer;

[0045] The PVB plasticizer comprises triethylene glycol diisocaprylate;

[0046] The particle diameter of the cesium tungstate powder is 10-30nm. The particle size of cesium tungstate powder is 10-30nm, which refers to the particle size of cesium tungstate powder in cesium tungstate slurry for PVB safety glass.

[0047] Among the above components, the amount of dispersant added is added with reference to cesium tungstate powder, and the amount of dispersant added is 5-15% relative to the mass of cesium tungstate powder, that is, 1-6% after conversion into absolute mass percentage. %.

[0048] Wherein, the dispersant includes at least one of polyethylene glycol, glycerin, polyvinyl alcohol, BYK-110, BYK-160, BYK-162, BYK-180.

Embodiment 2

[0050] This example provides the preparation method of cesium tungstate slurry for PVB safety glass, the steps include:

[0051] S1: Weigh the cesium tungstate powder, dispersant and PVB plasticizer according to the proportion, add the dispersant into the PVB plasticizer under stirring condition, and obtain the medium system after mixing;

[0052] S2: Add the medium system of step S1 into the grinding equipment, add the cesium tungstate powder in batches after starting the machine, and obtain the cesium tungstate slurry for PVB safety glass after grinding.

[0053] Wherein, the stirring speed in step S1 is 100-200 rpm.

[0054] The grinding equipment described in step S2 is a sand mill. The grinding time is 18-22 hours. The grinding speed is 2800-3200rpm.

[0055] The above also includes pulverizing the cesium tungstate powder before step S2, and after pulverization, the particle size of the cesium tungstate powder is less than 20 μm. The complete process such as figure 1...

Embodiment 3

[0057] In this example, a cesium tungstate slurry for PVB safety glass was actually prepared, specifically:

[0058]Add 7.9kg of plasticizer to the circulating mixing tank, add 0.1kg of dispersant during stirring, and stir for 10 minutes until the mixture is uniform;

[0059] Weigh 2kg of cesium tungstate powder, crush it mechanically, and pass through a 300-mesh sieve;

[0060] Turn on the sand mill cycle, and adjust the machine speed to 3000r / min;

[0061] Gradually add cesium tungstate powder to the circulating stirring tank at a rate of 300g / 5min. After the addition is complete, start timing and grind for 20 hours.

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Abstract

The embodiment of the present invention provides a cesium tungstate slurry for PVB safety glass and its preparation method. In the slurry, except cesium tungstate powder, it only includes a low content of dispersant and PVB plasticizer. Both the solvent and the PVB plasticizer are refractory reagents, which solve the problem that the current cesium acid slurry is prepared and stored with a volatile organic solvent as a medium, and the problem of large pollution emissions will be generated in the process of making safety glass. Using the embodiment of the present invention provides cesium tungstate slurry for PVB safety glass, the prepared cesium tungstate slurry for PVB safety glass has excellent transparent heat insulation performance, the visible light transmittance reaches 70%, and the infrared rejection rate is higher than 95%. The present invention The preparation method of cesium tungstate slurry for PVB safety glass provided in the embodiment has simple process steps, does not require complicated equipment and harsh production conditions, and is easy to be popularized and applied.

Description

technical field [0001] The invention belongs to the technical field of PVB materials, and in particular relates to a cesium tungstate slurry for PVB safety glass and a preparation method thereof. Background technique [0002] Polyvinyl butyral (Poly Vinyl Butyral, PVB), a polymer material used for safety glass interlayer, has characteristics that cannot be replaced by other materials, such as excellent transparency, strong adhesion, excellent light resistance, Heat resistance, cold resistance, water resistance, mixing, film forming, impact resistance and penetration resistance. When the glass with the PVB diaphragm is impacted by the outside world, the diaphragm undergoes elastic deformation to absorb the impact kinetic energy, and uses its own adhesive force to bond the glass, preventing it from splashing and hurting people, and improving safety, so PVB diaphragms are widely used In the manufacture of safety glass. [0003] Triethylene glycol diisocaprylate is an essentia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J129/14C09J11/04C09J11/06C09J7/10
CPCC08K2201/011C09J11/04C09J11/06C09J129/14C09J7/10C08K3/24C08K5/103
Inventor 吴纯纯郭梓旋陈明飞刘永成江长久
Owner 长沙壹纳光电材料有限公司
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