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Polyurethane moisture-curable hot-melt edge sealing adhesive, and preparation method and application thereof

A moisture-curing, polyurethane technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., to achieve the effect of suitable automatic control and construction, full of elasticity, and good peeling resistance

Inactive Publication Date: 2012-09-26
舒跃辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the products currently on the market are difficult to meet this requirement.

Method used

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  • Polyurethane moisture-curable hot-melt edge sealing adhesive, and preparation method and application thereof
  • Polyurethane moisture-curable hot-melt edge sealing adhesive, and preparation method and application thereof
  • Polyurethane moisture-curable hot-melt edge sealing adhesive, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Weighing and compounding polyester polyol mixture, its composition and weight ratio are:

[0038] Grade PHL-1600 18 parts

[0039] Grade PH-2000 2 copies

[0040] Grade CMA-1044 5 copies

[0041] Grade CMA-44 33 copies;

[0042] (2) Weigh 1000 parts of polyester polyol mixture, 300 parts of polyamide resin, 14 parts of terpene resin, 20 parts of YH-55 coupling agent, nano-SiO 2 Add 11 parts into the reaction kettle, heat up to 120°C under the pressure of -0.08~-0.1 MPa to melt, dehydrate until the liquid material has no bubbles escape, cool down to 90°C, and then weigh 150 parts of diphenylmethyl diisocyanate, Add it into the reaction kettle for 3.5 hours of polymerization reaction until the molar percentage of residual isocyanate reaches 0.6%, then add 1.2 parts of bismorpholino diethyl ether, continue to stir and disperse for 30 minutes, cool down to 60°C, filter while hot, Discharge, seal and package immediately to obtain polyurethane moisture-curing ho...

Embodiment 2

[0045] (1) Weighing and compounding polyester polyol mixture, its composition and weight ratio are:

[0046] Grade PHL-1600 25 parts

[0047] Brand CMA-44 55 copies;

[0048] (2) Weigh 880 parts of polyester polyol mixture, 270 parts of polyamide resin, 12 parts of terpene resin, 15 parts of YH-55 coupling agent, nano-SiO 2 Put 8 parts into the reaction kettle, heat up to 115°C under the pressure of -0.08~-0.1 MPa to melt, dehydrate until the liquid material has no bubbles escape, cool down to 80°C, and then weigh 188 parts of diphenylmethyl diisocyanate, Add it into the reaction kettle for polymerization reaction for 4 hours until the molar percentage of residual isocyanate reaches 0.8%, then add 1.2 parts of bismorpholino diethyl ether, continue to stir and disperse for 40 minutes, cool down to 60°C, filter while hot, Discharge, seal and package immediately to obtain polyurethane moisture-curing hot-melt edge banding adhesive.

[0049] The polyurethane moisture-curi...

Embodiment 3

[0051] (1) Weighing and compounding polyester polyol mixture, its composition and weight ratio are:

[0052] Grade PHL-1600 30 parts

[0053] Grade PH-2000 10 parts

[0054] Grade CMA-1044 18 parts

[0055] Brand CMA-44 40 copies;

[0056] (2) Weigh 800 parts of polyester polyol mixture, 292 parts of polyamide resin, 13 parts of terpene resin, 18 parts of YH-55 coupling agent, nano-SiO 2 Add 10 parts into the reaction kettle, heat up to 115°C under the pressure of -0.08~-0.1 MPa to melt, dehydrate until the liquid material has no bubbles escape, cool down to 95°C, and then weigh 174 parts of diphenylmethyl diisocyanate, Add it into the reaction kettle for polymerization reaction for 3 hours until the molar percentage of residual isocyanate reaches 1.5%, then add 1.0 part of bismorpholino diethyl ether, continue stirring and dispersing for 35 minutes, cool down to 60°C, filter while hot, Discharge, seal and package immediately to obtain polyurethane moisture-curing ho...

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Abstract

The invention belongs to the technical field of chemical adhesives, and relates to a polyurethane moisture-curable hot-melt edge sealing adhesive and a preparation method thereof. Based on weight part, the polyurethane moisture-curable hot-melt edge sealing adhesive comprises the following components: a polyester polyol mixture, diphenylmethyl diisocyanate, a plasticizer, a chain extender and a tackifying resin, wherein the polyester polyol mixture has the relative molecular weight of 1,000-7,000 and is one or more of PHL-1600, PH-2000, CMA-1044 and CMA-44; and the polyurethane moisture-curable hot-melt edge sealing adhesive does not contain any organic solvent, has the solid content of 100 percent, is short in positioning time, quickly and accurately adhere between a decorative film and a to-be-decorated base material, has high adhesive strength and high peel strength, can prevent the influence of water and other adverse environmental factors, has a flexible and elastic adhesive layer and can resist mechanical impact of edge parts in the subsequent polishing decoration process.

Description

technical field [0001] The invention belongs to the technical field of synthetic adhesives, and relates to a polyurethane moisture-curing hot-melt edge-sealing adhesive and its preparation method, as well as its application on the end faces and sides of solid wood boards, medium and high-pressure density boards, laminated boards, and other plastics, alloys, and composite boards. Application in edge banding. Background technique [0002] In order to make full use of wood resources, the furniture and building materials industry is increasingly using recycled products from the leftovers left over from the wood processing process - laminated boards, high-density boards, low-density boards, particle boards, etc. The edges and corners of the furniture and decorative components made of these panels used to be white latex, all-purpose glue or EVA hot-melt glue. However, these adhesives contain more or less free formaldehyde or organic solvents that damage the atmosphere, and their ...

Claims

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Application Information

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IPC IPC(8): C09J175/06C08G18/76C08G18/42C08G18/08
Inventor 舒跃辉张耀根
Owner 舒跃辉
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