A kind of EVA edge-sealing hot-melt adhesive with no glue line and low glue amount and preparation method thereof
A technology of glue application and hot melt adhesive, applied in adhesives, non-polymer adhesive additives, photovoltaic power generation, etc., can solve the problems of inconsistent color of edge banding, affect the appearance of furniture, reduce the grade of furniture, etc., and achieve the goal of reducing coating The effect of glue volume, light specific gravity, and saving glue volume
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[0063] A second aspect of the present invention provides a method for preparing an EVA edge-sealing hot-melt adhesive with no glue line and low amount of glue, the preparation method comprising the following steps:
[0064] Add viscosity modifier and ethylene-vinyl acetate copolymer into the reaction kettle, heat, when the temperature is 80-110 ℃, turn on the turntable of the reaction kettle until the above raw materials are completely dissolved; put in antioxidant to keep the temperature of the material at 130-160 ℃ ℃, until the dissolution is uniform, add tackifying resin, petroleum resin, filler and stir evenly. After the raw materials are completely dissolved, keep it for 30-50min, then cool down to 125-150℃, and discharge the material.
[0065] In a preferred embodiment, the preparation method of the EVA edge-sealing hot-melt adhesive with no glue line and low glue coating amount according to the present invention comprises the following steps:
[0066] Add viscosity modi...
Embodiment 1
[0072] Provided is an EVA edge-sealing hot-melt adhesive with no glue line and low glue coating amount. In parts by weight, the preparation raw materials include: 36 parts of ethylene-vinyl acetate copolymer, 23 parts of petroleum resin, 6 parts of tackifying resin, viscosity 7 parts of conditioner, 30 parts of filler, 0.03 part of antioxidant.
[0073] The ethylene-vinyl acetate copolymer can be obtained commercially under the brand name of DuPont 4455 in the United States, and the content of vinyl acetate is 25% by weight.
[0074] The petroleum resin is C5 hydrogenated petroleum resin.
[0075] The tackifying resin is rosin resin.
[0076] The viscosity modifier is polyethylene wax, which can be obtained commercially. The manufacturer is Ninghai Boer Chemical Co., Ltd., and the brand name is BR-1.
[0077] The filler is a combination of calcium carbonate and titanium dioxide, wherein the mass ratio of calcium carbonate and titanium dioxide is 3:1.
[0078] The preparatio...
Embodiment 2
[0081]Provided is an EVA edge-sealing hot-melt adhesive with no glue line and low glue coating amount. In parts by weight, the preparation raw materials include: 25 parts of ethylene-vinyl acetate copolymer, 15 parts of petroleum resin, 2 parts of tackifying resin, viscosity 5 parts of conditioner, 20 parts of filler, 0.01 part of antioxidant.
[0082] The ethylene-vinyl acetate copolymer can be obtained commercially under the brand name of DuPont 4455 in the United States, and the content of vinyl acetate is 25% by weight.
[0083] The petroleum resin is C5 hydrogenated petroleum resin.
[0084] The tackifying resin is rosin resin.
[0085] The viscosity modifier is polyethylene wax, which can be obtained commercially. The manufacturer is Ninghai Boer Chemical Co., Ltd., and the brand name is BR-1.
[0086] The filler is a combination of calcium carbonate and titanium dioxide, wherein the mass ratio of calcium carbonate and titanium dioxide is 3:1.
[0087] The preparation...
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