Photocurable photochromic material and preparation method thereof
A photochromic material and photocuring technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, optics, etc., can solve problems such as easy cracks, poor impact resistance, and narrow application range, so as to improve impact resistance and improve Weather resistance, the effect of avoiding cracks
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Embodiment 1
[0027] A light-curable photochromic material, the components and the weight percentages of each component are as follows:
[0028] Bisphenol A dimethacrylate: 30%;
[0029] Polyethylene glycol diacrylate: 55%;
[0030] Multifunctional acrylate monomer: 10%;
[0031] Photochromic dye: 1%;
[0032] The rest are modified additives. The modified additives include photoinitiators, ultraviolet absorbers, and antioxidants; the addition amount of the antioxidant is 1%, the addition amount of the ultraviolet absorber is 2%, and the photoinitiator The addition amount of the agent is 1%.
[0033] The photochromic dye may be an organic compound based on spiropyran or fulgide or fulgimide or azobenzene or viologen or spiro-oxazine or pyranyl-based organic compound.
[0034] The bisphenol A dimethacrylate is an ethoxylated bisphenol A dimethacrylate containing 2-20 repeating units with ethoxy groups.
[0035] The polyethylene glycol diacrylate is a polyethylene glycol diacrylate containing 2-20 repeati...
Embodiment 2
[0041] A light-curable photochromic material, the components and the weight percentages of each component are as follows:
[0042] Bisphenol A dimethacrylate: 70%;
[0043] Polyethylene glycol diacrylate: 10%;
[0044] Multifunctional acrylate monomer: 10%;
[0045] Photochromic dye: 1%;
[0046] The rest are modified additives, totaling 100%.
[0047] The bisphenol A dimethacrylate is a propoxylated bisphenol A dimethacrylate containing 2-20 repeating units with propoxy groups.
[0048] The polyethylene glycol diacrylate is a polyethylene glycol diacrylate with 2-20 repeating units containing propoxy groups.
[0049] The multifunctional acrylate monomer is at least one of dipentaerythritol hexaacrylate, dipentaerythritol hydroxypentaacrylate, and pentaerythritol tetraacrylate.
[0050] The modified additives include photoinitiators, stabilizers, ultraviolet absorbers, antioxidants, chain transfer agents, IR absorbers, defoamers, antistatic agents, and mold release agents; wherein the amoun...
Embodiment 3
[0055] A light-curable photochromic material, the components and the weight percentages of each component are as follows:
[0056] Bisphenol A dimethacrylate: 40%;
[0057] Polyethylene glycol diacrylate: 30%;
[0058] Multifunctional acrylate monomer: 20%;
[0059] Photochromic dye: 3%;
[0060] The rest are modified additives, totaling 100%.
[0061] The photochromic dye is an organic compound based on spiropyran or fulgide or fulgide or azobenzene or viologen or spiro-oxazine or pyranyl-based organic compound.
[0062] The bisphenol A dimethacrylate is alkoxylated bisphenol A dimethacrylate and glycerated bisphenol A dimethacrylate containing 2-20 repeating units containing epoxy groups and propoxy groups At least one of ester and bisphenol A glycerated (1-glycerol / phenol) dimethacrylate.
[0063] The polyethylene glycol diacrylate is polyethylene glycol diacrylate containing 2-20 repeating units containing ethoxy groups or polyethylene glycol diacrylate containing 2-20 repeating units...
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