Moisturecuring polyurethane hot melt adhesive for lining cloth and preparation method of moisturecuring polyurethane hot melt adhesive

A polyurethane adhesive, moisture curing technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve the problem of not fully meeting the development requirements of the interlining industry, and achieves widely adjustable sizing temperature, Good performance and the effect of improving bond strength

Active Publication Date: 2013-03-20
KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many R&D personnel have developed many types of hot melt adhesives, but each type of colloid cannot fully meet the development requirements of the interlining industry due to its own defects.

Method used

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  • Moisturecuring polyurethane hot melt adhesive for lining cloth and preparation method of moisturecuring polyurethane hot melt adhesive
  • Moisturecuring polyurethane hot melt adhesive for lining cloth and preparation method of moisturecuring polyurethane hot melt adhesive
  • Moisturecuring polyurethane hot melt adhesive for lining cloth and preparation method of moisturecuring polyurethane hot melt adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 5.0 g of polybutylene phthalate diol with a molecular weight of 2000, 300.0 g of polyoxypropylene diol with a molecular weight of 4000, 85.0 g of polyacrylic acid, 1.25 g of antioxidants CHINOX1076 and CHINOX1010, add them to a three-necked flask, and heat Stir and vacuum at 130-145°C for 3.0h. The vacuum degree is lower than 0.1 atmosphere. Cool down to 90°C, add 87.5g of 4,4′-MDI, 0.175g of stannous octoate and 0.075g of bis(2,2-morpholine ethyl) ether under the protection of nitrogen, and react for 45min at 85~95°C. Under the protection of nitrogen, 4.75g of 1,4-butanediol, 10.0g of γ-aminopropyltriethoxysilane KH-550, 5.0g of nano-sized white carbon black were added, and the reaction was stirred at 85-95°C for 1.0h at high speed. The above-mentioned prepolymer was discharged under nitrogen protection, sealed and packaged, and aged in an environment of 85° C. for 6 hours. Promptly obtain interlining fabric composite glue, the sample number is PUR-1.

Embodiment 2

[0025] Weigh 85.0 g of polybutylene adipate diol with a molecular weight of 2000, 210.0 g of polyethylene glycol with a molecular weight of 2000, 94.25 g of polystyrene, 1.25 g of antioxidants CHINOX1076 and CHINOX1010, and add them to a three-necked flask. Heat and stir, and vacuum at 130-145°C for 3.0h. The vacuum degree is lower than 0.1 atmosphere. Cool down to 90°C, add 95.0g of 2,4′-MDI, 0.125g of stannous octoate and 0.125g of bis(2,2-morpholine ethyl) ether under the protection of nitrogen, and react for 45min at 85~95°C. Under the protection of nitrogen, add 2.5g of 1,3-propanediol, 10.0g of γ-glycidyl etheroxypropyl trimethoxysilane KH-560, 0.5g of nano-sized white carbon black, and react with high-speed stirring at 85~95°C for 1.0h. The above-mentioned prepolymer was discharged under the protection of nitrogen, sealed and packaged, and aged at 85° C. for 6 hours. That is to get interlining fabric composite glue, the sample number is PUR-2.

Embodiment 3

[0027] Weigh 44.75g of polycaprolactone polyol with a molecular weight of 1250, 255.0g of polyoxypropylene glycol with a molecular weight of 4000, 95g of polyethylene-vinyl acetate copolymer, 1.25g of antioxidants CHINOX1076 and CHINOX1010, and add them to a three-necked flask. Heat and stir, and vacuum at 130-145°C for 3.0h. The vacuum degree is lower than 0.1 atmosphere. Cool down to 90°C, add 87.5g of 2,2′-MDI, 0.15g of stannous octoate and 0.1g of bis(2,2-morpholine ethyl) ether under the protection of nitrogen, and react for 45min at 85~95°C. Under the protection of nitrogen, add 5.0g of 1,6-hexanediol, 5.0g of γ-(methacryloyloxy)propyltrimethoxysilane KH-5700, 5.0g of nano-sized white carbon black, stir at 85~95℃ at high speed Reaction 1.0h. The above prepolymer was discharged under the protection of nitrogen, sealed and packaged, and aged at 85°C for 6h. That is to get interlining fabric composite glue, the sample number is PUR-3.

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PUM

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Abstract

The invention discloses a moisturecuring polyurethane hot melt adhesive for lining cloth and a preparation method of the moisturecuring polyurethane hot melt adhesive. The preparation method comprises the following steps of: 1, heating and melting polyester polyol, polyether polyol, antioxidant and tackifying resin, stirring and mixing uniformly, and vacuum-degassing for 3.0h; 2, under the protection of nitrogen, adding MDI (diphenyl-methane-diisocyanate) and a catalyst in the reaction system, reacting for 45min at a temperature of 85-95 DEG C; 3, under the protection of nitrogen, adding a chain extender, a silane coupling agent and nanoscale white carbon black, reacting for 1.0h at a temperature of 85-95 DEG C to obtain a prepolymer; and 4, under the protection of nitrogen, transferring the reaction mixture to an aluminum foil bag, sealing and then curing for 6h at a temperature of 85 DEG C to obtain the moisturecuring polyurethane hot melt adhesive with wide and adjustable coating temperature and little residual CO2. The moisturecuring polyurethane hot melt adhesive is especially suitable for the industry of the lining cloth, and has the characteristics of high stripping strength and wide and adjustable sizing temperature.

Description

technical field [0001] The invention relates to a moisture-curing polyurethane hot-melt adhesive for lining cloth and a preparation method thereof, belonging to the technical field of polyurethane adhesive synthesis. Background technique [0002] Moisture-curing polyurethane adhesive is a new type of adhesive. Its adhesive mechanism is different from that of other adhesives. It not only has hydrogen bonds in traditional adhesives, intermolecular forces, etc. The -NCO group reacts with the moisture diffused into the colloid to form an amino group containing active hydrogen, and then reacts with the -NCO group to produce a urea group, and then forms a cross-linked structure to achieve curing. The cured colloid not only cannot be melted again, but also because the active components in the colloid react with the corresponding active components in the base material, the bonding strength of the glue is greatly enhanced. With the improvement of people's living standards, the requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J175/08C08G18/76C08G18/66
Inventor 薛为岚肖剑李哲龙朱万育曾作祥沙进刘燕武
Owner KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD
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