Stress-induced light-emission material, method for manufacturing stress-induced light-emission material, stress-induced light-emission paint composition, resin composition, and stress-induced light-emission body

A resin composition, stress luminescence technology, applied in luminescent materials, luminescent coatings, chemical instruments and methods, etc., can solve the problems of reduced luminous intensity, insufficient reduction of luminous intensity, lack of water resistance, etc., and achieve full water resistance. Effect

Active Publication Date: 2016-07-20
SAKAI CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This stress-luminescent material has been pointed out to be a problem of reduced luminous intensity when in contact with water due to the lack of water resistance.
Therefore, although a water-repellent treatment or the like covered with a fatty acid can be used, it is still insufficient for suppressing a decrease in luminous intensity.

Method used

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  • Stress-induced light-emission material, method for manufacturing stress-induced light-emission material, stress-induced light-emission paint composition, resin composition, and stress-induced light-emission body
  • Stress-induced light-emission material, method for manufacturing stress-induced light-emission material, stress-induced light-emission paint composition, resin composition, and stress-induced light-emission body
  • Stress-induced light-emission material, method for manufacturing stress-induced light-emission material, stress-induced light-emission paint composition, resin composition, and stress-induced light-emission body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0186] 0.45 g of diammonium hydrogen phosphate (manufactured by Wako Pure Chemical Industries, Ltd.) was weighed in a container, and 30 mL of pure water was added and stirred to obtain a slurry containing a phosphoric acid compound.

[0187] Put 15 g of the above-mentioned europium-activated strontium aluminate (1) particles [SAO particles (1)] into a 100 mL plastic container, add the above-mentioned slurry to prepare a mixed solution, and then add 80 g of alumina balls with a diameter of 1.5 mm to obtain a slurry.

[0188] The slurry was pulverized for 25 minutes using a planetary ball mill (manufactured by Fritsch Japan Co., Ltd.) at a rotational speed of 150 rpm, and the slurry was passed through a stainless steel strainer to remove alumina balls to obtain a pulverized slurry. The relative centrifugal acceleration at this time G(m / s 2 ) is 3.08.

[0189] The product of the relative centrifugal acceleration G and the time (hour) of the crushing process was 1.28.

[0190] T...

Embodiment 2

[0193] In Example 1, the pulverized slurry from which alumina balls were removed was stirred for 4 hours, and then a drying process was performed using an atomizer-type spray dryer (direct heating spray drying device) to make SAO particles (1 ) reacts with a phosphoric acid compound to obtain a stress luminescent material with a surface treatment layer formed.

[0194] The content A of the strontium element in the stress light-emitting material was measured by the same method as in Example 1, and it was 32.1% by weight.

Embodiment 3

[0196] In Example 2, after the drying step, a heat treatment step of heating with an electric dryer at 200°C for 2 hours was performed to react the surface of the SAO particles (1) with a phosphoric acid compound, thereby obtaining stress luminescence with a surface treatment layer formed. Material.

[0197] The content A of the strontium element in the stress light-emitting material was measured by the same method as in Example 1, and it was 31.8% by weight.

[0198] In addition, the content of phosphorus element in the stress light-emitting material was measured by the same method as the content of strontium element, and it was 0.72% by weight.

[0199] In the stress luminescent material, the content of phosphorus element relative to 100 parts by weight of europium-activated strontium aluminate particles is 0.70 parts by weight.

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Abstract

Provided is a stress-induced light-emission material. The stress-induced light-emission material is characterized in that the stress-induced light-emission material is obtained through a step in which a phosphoric acid compound and europium-activated strontium aluminate particles are mixed to prepare a slurry, a pulverization step in which the slurry is pulverized to produce a pulverized slurry, and a drying step in which the pulverized slurry is dried. The stress-induced light-emission material uses the elemental strontium content (A) of the stress-induced light-emission material obtained and the elemental strontium content (B) after the stress-induced light-emission material is held for 168 hours in an atmosphere with a temperature of 85 DEG C and a relative humidity of 85%, and the ratio of change, calculated by (A-B) / A*100, is 10% or less.

Description

technical field [0001] The present invention relates to a stress luminescent material, a method for producing the stress luminescent material, a stress luminescent coating composition, a resin composition and a stress luminescent body. Background technique [0002] There are known light-emitting materials in which a substance emits visible light at around room temperature in response to external stimuli. Among them, a material that emits light under the mechanical stimulus of an externally applied force (compression, displacement, friction, impact, etc.) is called a stress luminescent material. [0003] As a stress luminescent material, a stress luminescent material using an aluminate as a matrix has been reported (for example, Patent Documents 1 and 2). [0004] Such stress luminescent materials have been pointed out to be a problem of reduced luminous intensity when in contact with water due to their lack of water resistance. Therefore, although water-repellent treatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/64C09D5/22C09D7/12C09K11/08C09D7/61
CPCC09D5/22C09K11/08C09D7/61C09K11/70C09K11/7734
Inventor 川泷贵大森健治小林恵太中尾日六士东条知则
Owner SAKAI CHEM IND CO LTD
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