一种可逆光致变色材料及其制备方法

本发明提供了一系列单一基质变色颜色可调及褪色速率可控的高性能可逆光致变色材料，其组成可表达为62.5-x-y(aBaO-bBaCl2-cBaF2)-18.75P2O5:xEu2+,yRE3+，其中0.3≤a≤0.85、0.15≤b≤0.5、0＜c≤0.2、0.125≤x≤1.25、0≤y≤1.25，a、b、c之和为1.0，所述数值均为摩尔量。该类材料在经过短波紫外光照或X射线辐射后，体色由白色转变为彩色，再经过近紫外‒可见光照射或加热处理，可逆恢复至白色。该类材料采用高温固相法合成，可精确调控材料光致变色颜色、变色对比度和褪色速率；光致变色为红色的样品变色后产生2个吸收峰值，可控褪色为黄色、黄...

Full description

Saved in:
Bibliographic Details
Format Patent
LanguageChinese
Published 14.03.2025
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
Online AccessGet full text

Cover

More Information
Summary:本发明提供了一系列单一基质变色颜色可调及褪色速率可控的高性能可逆光致变色材料，其组成可表达为62.5-x-y(aBaO-bBaCl2-cBaF2)-18.75P2O5:xEu2+,yRE3+，其中0.3≤a≤0.85、0.15≤b≤0.5、0＜c≤0.2、0.125≤x≤1.25、0≤y≤1.25，a、b、c之和为1.0，所述数值均为摩尔量。该类材料在经过短波紫外光照或X射线辐射后，体色由白色转变为彩色，再经过近紫外‒可见光照射或加热处理，可逆恢复至白色。该类材料采用高温固相法合成，可精确调控材料光致变色颜色、变色对比度和褪色速率；光致变色为红色的样品变色后产生2个吸收峰值，可控褪色为黄色、黄绿色和白色中任意一种。该材料光致变色对比度远超同类型材料，可广泛应用于光信息存储、光开关、防伪加密、光学制冷等诸多领域。 The invention provides a series of high-performance reversible photochromic materials with adjustable single-matrix color change and controllable fading rate, the composition of the materials can be expressed as 62.5-x-y (aBaO-bBaCl2-cBaF2)-18.75 P2O5: xEu < 2 + >, yRE < 3 + >, 0.3 < = a < = 0.85, 0.15 < = b < = 0.5, 0 < c < = 0.2, 0.125 < = x < = 1.25, 0 < = y < = 1.25, the sum of a, b and c is 1.0, and the numerical values are all molar weights. After the material is subjected to short-wave ultraviolet irradiation or X-ray radiation, the body color is changed from white to color, and then the material is reversibly recovered to white after being subject
Bibliography:Application Number: CN202211448997