Ultraviolet curing adhesive capable of being quickly cured at low energy and preparation method of ultraviolet curing adhesive
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A fast-curing, ultraviolet light technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor curing effect and reducing the energy absorbed by ultraviolet light-curing adhesives.
Inactive Publication Date: 2017-05-31
YANTAI SEAYU NEW MATERIALS CORP LTD
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[0003] The purpose of the present invention is to solve the problem of poor curing effect of UV curing adhesives in the prior art under low energy, by optimizing and screening acrylate oligomers, reactive diluents, especially adding oligoamine synergists, It effectively overcomes the influence of oxygen inhibition, improves the efficiency of crosslinking and curing, and significantly reduces the energy absorbed by the curing of UV-curable adhesives, so that the parts that cannot be directly irradiated by ultraviolet rays can be cured by low-energy reflected light. Expand the application field of UV curing adhesive, the energy required for complete curing of this adhesive is ≤30mj / cm 2 , and high strength after curing, good surface dryness, good toughness, excellent resistance to heat and humidity and high temperature performance
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Embodiment 1
[0016] Accurately take each raw material by weight, CN120NS of Sartomer Company, 25g; CN996NS, 20g; 4312, 10g of RAHN Company; 20g of hydroxyethyl acrylate; 10g of N-vinylpyrrolidone; 7g of neopentyl glycol diacrylate; The oligoamine 5142 of RAHN company, 3g; Photoinitiator 184, 2.5g; Photoinitiator TPO, 1g; Silane coupling agent KH560, 1.5g. Put the above components into the double planetary power mixing mixer in turn, evacuate to -0.08MPa, stir at 500 rpm for 2 hours, stir evenly, and let it cool down to room temperature to obtain UV-curable adhesive, sealed and packaged That's it.
Embodiment 2
[0018] Accurately take each raw material by weight, DR-U025 of Changxing Company, 10g; CN104NS of Sartomer Company, 15g; CN996NS, 20g; 4312 of RAHN Company, 10g; Isobornyl acrylate 20g; N-vinylpyrrolidone 10g; Neopentyl glycol diacrylate 7g; Oligoamine 5275, 3g of RAHN company; Photoinitiator 184, 2.5g; Photoinitiator TPO, 1g; Silane coupling agent KH560, 1.5g. Put the above components into the double planetary power mixing mixer in turn, evacuate to -0.08MPa, stir at 500 rpm for 2 hours, stir evenly, and let it cool down to room temperature to obtain UV-curable adhesive, sealed and packaged That's it.
Embodiment 3
[0020] Accurately weigh each raw material by weight, DR-U026 of Changxing Company, 15g; CN975NS of Sartomer Company, 15g; CN8007NS, 20g; 4312, 10g of RAHN Company; 20g of isobornyl acrylate; 10g of N-vinylpyrrolidone; Neopentyl glycol diacrylate 7g; Oligoamine 5275, 3g of RAHN company; Photoinitiator 184, 2.5g; Photoinitiator TPO, 1g; Silane coupling agent KH560, 1.5g. Put the above components into the double planetary power mixing mixer in turn, evacuate to -0.08MPa, stir at 500 rpm for 2 hours, stir evenly, and let it cool down to room temperature to obtain UV-curable adhesive, sealed and packaged That's it.
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Abstract
The invention discloses an ultraviolet curing adhesive capable of being quickly cured at low energy and a preparation method of the ultraviolet curing adhesive. The adhesive is prepared from the following raw materials by weight: 30 to 60 percent of an acrylate oligomer, 20 to 50 percent of an active diluent, 2 to 5 percent of a photoinitiator, 1 to 4 percent of an adjuvant and 2 to 5 percent of a low-polyamine synergist. Compared with the prior art, the ultraviolet curing adhesive disclosed by the invention has the advantages that by optimal screening of the acrylate oligomer and the active diluent, particularly by adding of the low-polyamine synergist, the influence of oxygen inhibition is effectively avoided; furthermore, the crosslinking curing efficiency is improved, and the energy to be absorbed for curing of the ultraviolet curing adhesive is greatly reduced, so that the portion which cannot be irradiated by ultraviolet rays can be cured through low energy reflection light rays, and the application field of the ultraviolet curing adhesive is expanded; the energy required by complete curing of the adhesive is less than or equal to 30 mj / cm<2>; meanwhile, after being cured, the ultraviolet curing adhesive is high in strength, high in surface dryness, high in toughness, excellent in damp-heat resistance and high temperature resistance, and the like.
Description
technical field [0001] The invention belongs to the field of light-curing materials, and in particular relates to a low-energy and fast-curing ultraviolet light-curing adhesive and a preparation method thereof. Background technique [0002] UV-curable adhesives have been widely studied due to their outstanding advantages such as fast curing speed, environmental friendliness, low energy consumption, and no solvent volatilization, and are rapidly promoted in various industries. However, UV-curable adhesives also have their own limitations. Conventional UV-curable adhesives should be at 600mj / cm 2 ~1500Mj / cm 2 It can only be cured under high strength. It requires that the material has no shielding from light and strong light transmission. However, in the actual process operation, many parts are not directly exposed to ultraviolet light due to the shielding of components, which leads to the absorption of ultraviolet light curing adhesives in this part. The light energy is very...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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