Temperature-sensitive polyurethane-acrylic resin and its preparation method and hot-melt adhesive film

An acrylic resin and polyurethane technology, used in the field of polymer adhesives, can solve the problems of inability to be used as adhesives, high melting point of waterproof and moisture-permeable films, poor thermal insulation of clothing, etc., to achieve easy industrialization, excellent moisture permeability, excellent permeability The effect of wetness and temperature denaturation

Active Publication Date: 2022-02-25
GUANGDONG YETOM NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the waterproof and moisture-permeable function, as an important function of outdoor sportswear, has been concerned and researched by more and more manufacturers and manufacturers. The method of wet film, the melting point of the waterproof and moisture-permeable membrane made by these technologies is generally all high, can't be used as adhesive; Waterproof and moisture-permeable function, can prevent rain and wind, and can wick away sweat, breathable, comfortable to wear
However, under the harsh external environment, such as poor warmth retention at low temperature and insufficient moisture permeability at high temperature, living in a high temperature state in summer will still feel stuffy because of insufficient moisture permeability; and living in the mountains for a long time in winter, because of moisture permeability Clothing that doesn't insulate well

Method used

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  • Temperature-sensitive polyurethane-acrylic resin and its preparation method and hot-melt adhesive film
  • Temperature-sensitive polyurethane-acrylic resin and its preparation method and hot-melt adhesive film

Examples

Experimental program
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Effect test

Embodiment 1

[0050] With the dimethylformamide of 25Kg, the methyl ethyl ketone of 20Kg, the hydrophilic polyethylene glycol of 35Kg and phthalic anhydride polyester diol copolymerization type (PEG+PA) polyester TPU particle (melt mass flow rate is 45g / 10 Minutes, the melt viscosity is 14000mPa.s) into the reactor together, heated to 60 ° C, heated and stirred for 1 hour to dissolve, then 20Kg of methacrylic acid and 0.02Kg of catalyst diacyl peroxide were added into the kettle together, Carry out the first polymerization reaction at 60°C, react for 0.5 hours and then add the remaining 0.05Kg of catalyst diacyl peroxide (diluted with 0.3Kg of methyl ethyl ketone and add it to the reactor, and add it within 2 hours) ), continue to react for 3 hours, and the temperature in the kettle is controlled at about 80°C. After the reaction is completed, add 0.03Kg of antioxidant 1010, 0.03Kg of ultraviolet absorber UV-328, 3Kg of nano-titanium dioxide and antimony trioxide mixture to obtain a thermos...

Embodiment 2

[0053] With the dimethylformamide of 35Kg, the methyl ethyl ketone of 15Kg, the hydrophilic polyethylene glycol of 40Kg and adipic acid (AA) series polyester diol copolymerization polyester type TPU particle (melt mass flow rate is 40g / 10 minutes, the melt viscosity is 10000mPa.s) into the reaction kettle together, heated up to 60 ℃, heated and stirred to dissolve for 1 hour, then 10Kg of ethyl acrylate and 0.01Kg of catalyst azobisisobutyronitrile were added together In the kettle, carry out the first polymerization reaction at a temperature of 60°C, add the remaining 0.03Kg catalyst azobisisobutyronitrile (diluted with methyl ethyl ketone and add to the reaction kettle after 0.5 hours) by adding dropwise. After the internal addition) continue to react for 3 hours, and the temperature in the kettle is controlled at about 80°C. After the reaction is completed, add 0.03Kg of antioxidant 1010, 0.03Kg of ultraviolet absorber UV-5411, 2Kg of nano-titanium dioxide and antimony trio...

Embodiment 3

[0056] With the dimethyl formamide of 33Kg, the methyl ethyl ketone of 15Kg, the hydrophilic polyethylene glycol of 40Kg and the polyester type TPU particle (melt mass flow rate is 35g) of adipic acid (AA) series polyester diol copolymerization / 10 minutes, the melt viscosity is 15000mPa.s) together into the reactor, heated to 55 ℃, heated and stirred to dissolve for 1 hour, the mixture of 12Kg of methyl acrylate and acrylamide, 0.02Kg of the catalyst azobisiso Add butyronitrile together in the kettle, carry out the first polymerization reaction under 60 ℃ of temperature, add remaining 0.03Kg catalyst agent azobisisobutyronitrile (diluted with methyl ethyl ketone and add reaction In the still, add within 2 hours) continue to react for 5 hours, and the temperature in the kettle is controlled at about 75°C. After the reaction is completed, add 0.03Kg of antioxidant 168, 0.05Kg of ultraviolet absorber UV-9, 8Kg of nano-titanium dioxide And the mixture of antimony trioxide to obta...

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Abstract

The invention discloses a temperature-sensitive polyurethane-acrylic resin, a preparation method thereof, and a hot-melt adhesive film. The temperature-sensitive polyurethane-acrylic resin comprises the following raw materials in weight percentage: polyurethane-acrylic copolymer 80-99% and metal oxide 1-20%; where polyurethane-acrylic acid copolymer includes the following raw materials by weight percentage: hydrophilic TPU particles 25-50%, dimethylformamide 20-35%, butanone 15-20%, acrylic acid and its derivatives 10‑20%, catalyst 0.01‑0.1% and auxiliary agent 0.01‑0.5%. The hot-melt adhesive film cured by temperature-sensitive polyurethane-acrylic resin has soft touch, excellent moisture permeability, good adhesion, and temperature sensing function. It can be widely used in jackets, ski jackets, cold-proof clothing, Mountaineering clothing and other outdoor sports clothing.

Description

technical field [0001] The invention belongs to the field of polymer adhesives, and in particular relates to a temperature-sensitive polyurethane-acrylic resin and a preparation method thereof, a hot-melt adhesive film obtained by curing the temperature-sensitive polyurethane-acrylic resin, and the hot-melt adhesive film outdoors Applications in sportswear. Background technique [0002] Polyurethane adhesives have been developed rapidly due to their excellent adhesion, outstanding elasticity, wear resistance and low temperature resistance, and have been widely used in shoemaking, packaging, wood processing, automobiles, textiles and other industries. Acrylic polyurethane is a material that combines the excellent weather resistance and optical properties of acrylic acid, and the comprehensive advantages of polyurethane such as low temperature resistance, good flexibility, good wear resistance, high tear strength, and high bonding strength. Broad application space. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/00C08F220/06C08F220/18C08F220/14C08F220/56C09J7/35C09J7/21A41D31/00
Inventor 梁坤焕欧阳效明梁锋
Owner GUANGDONG YETOM NEW MATERIALS CO LTD
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