Ultraviolet curing pressure-sensitive adhesive and preparation method thereof
A technology of ultraviolet light and curing pressure, which is applied in the direction of adhesives, non-polymer organic compound adhesives, non-polymer adhesive additives, etc., can solve the problems of slow drying and film formation, poor heat resistance, and poor solvent resistance. Satisfactory and other issues, to achieve the effect of fast cross-linking speed and reduce energy waste
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Embodiment 1
[0026] In every 100 mass parts raw material liquid: butyl acrylate: 24.2g, isooctyl acrylate: 8g, neopentyl glycol diacrylate: 10g, pentaerythritol triacrylate: 12g, acrylate polyol (hydroxyl value 18mgKOH / g ): 40 g, 200 nm fumed silica: 3 g, hydroxycyclohexyl phenyl ketone: 2 g, γ-(methacryloyloxy)propyltrimethoxysilane: 0.8 g.
[0027] The preparation method is:
[0028] Under the conditions of avoiding sunlight and relative air humidity of less than 60%, add the above-mentioned substances into the mixing tank in turn, stir for 30 minutes, and then filter and remove impurities with a polypropylene filter element with a pore size of 0.1 μm to obtain a raw material mixture for later use. .
[0029] Then the prepared raw material mixture is coated on the PET film substrate by slit extrusion coating method, and the irradiation energy of the ultraviolet high-pressure mercury lamp is 800mJ / cm 2 After being irradiated for 15s, it is cured to form a layer of pressure-sensitive adh...
Embodiment 2
[0031] In every 100 parts by mass of raw material liquid: butyl acrylate: 30g, ethylene glycol diacrylate: 12g, trimethylolpropane pentaerythritol triacrylate: 6g, polyurethane acrylate (hydroxyl value 18mgKOH / g): 46.2g, 200 nm fumed silica: 3 g, hydroxycyclohexyl phenyl ketone: 2 g, γ-(methacryloyloxy)propyltrimethoxysilane: 0.8 g.
[0032] The preparation method is:
[0033] Under the conditions of avoiding sunlight and relative air humidity less than 60%,
[0034] The above-mentioned substances were sequentially added into the mixing tank, stirred for 30 minutes, and then filtered through a polypropylene filter element with a pore size of 0.1 μm to remove impurities to obtain a raw material mixture, which was set aside.
[0035] Then the prepared raw material mixture is coated on the PET film substrate by slit extrusion coating method, and the irradiation energy of the ultraviolet high-pressure mercury lamp is 800mJ / cm 2 After being irradiated for 15s, it is cured to form...
Embodiment 3
[0037] In every 100 parts by mass of raw material liquid: butyl acrylate: 25g, vinyl acetate: 16g, ethylene glycol diacrylate: 7g, trimethylolpropane pentaerythritol triacrylate: 8g, polyurethane acrylate (hydroxyl value 18mgKOH / g): 35.2 g, 200 nm fumed silica: 5 g, hydroxycyclohexyl phenyl ketone: 3 g, γ-(methacryloyloxy)propyltrimethoxysilane: 0.8 g.
[0038] The preparation method is:
[0039] Under the conditions of avoiding sunlight and relative air humidity of less than 60%, add the above-mentioned substances into the mixing tank in turn, stir for 30 minutes, and then filter and remove impurities with a polypropylene filter element with a pore size of 0.1 μm to obtain a raw material mixture for later use. .
[0040] Then the prepared raw material mixture is coated on the PET film substrate by slit extrusion coating method, and the irradiation energy of the ultraviolet high-pressure mercury lamp is 800mJ / cm 2 After being irradiated for 15s, it is cured to form a layer ...
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