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Preparing method for polyurethane wet curing hot melt flat adhesive and application thereof

A moisture-curing, polyurethane technology, applied in polyurea/polyurethane adhesives, adhesives, adhesive types, etc., to achieve the effects of less pollution, improved work efficiency, and high bonding strength

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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  • Preparing method for polyurethane wet curing hot melt flat adhesive and application thereof
  • Preparing method for polyurethane wet curing hot melt flat adhesive and application thereof
  • Preparing method for polyurethane wet curing hot melt flat adhesive and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Weighing and compounding polyester polyol mixture, its composition and weight ratio are:

[0045] Grade PHL-1600 35 parts

[0046] Grade PH-2000 10 parts

[0047] Grade CMA-1044 30 parts

[0048] Grade CMA-44 10 copies;

[0049] The composition and weight ratio of the polyether polyol mixture are:

[0050] Grade 4110 40 parts

[0051] Grade N-330 31 parts

[0052] Grade N-251 25 parts

[0053] Grade GP-104G 10 copies

[0054] Grade EP-330N 12 copies;

[0055] (2) Weigh 100 parts of polyether polyol mixture, 1400 parts of polyester polyol mixture, 14 parts of YH-55 coupling agent, 200 parts of polyamide resin and 8 parts of modified rosin resin into the reaction kettle according to the weight ratio , under the pressure of -0.08~-0.1 MPa, heat up to 120°C to melt, dehydrate until the liquid material has no bubbles to escape, cool down to 90°C, weigh 220 parts of diphenylmethyl diisocyanate, add it to the reactor for polymerization 3.5 h, until the mol...

Embodiment 2

[0058] (1) Weighing and compounding polyester polyol mixture, its composition and weight ratio are:

[0059] Grade PHL-1600 40 copies

[0060] Grade CMA-44 20 copies;

[0061] The composition and weight ratio of the polyether polyol mixture are:

[0062] Grade 4110 50 parts

[0063] Grade N-330 35 parts

[0064] Grade N-251 22 parts

[0065] Grade GP-104G 9 parts

[0066] Grade EP-330N 20 parts

[0067] Grade ZS2012 8 copies;

[0068] (2) Weigh 100 parts of polyether polyol mixture, 800 parts of polyester polyol mixture, 16 parts of YH-44 coupling agent, 230 parts of polyamide resin and 10 parts of modified rosin resin, nanometer dioxide Add 10 parts of silicon into the reaction kettle, heat up to 110°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 230 parts of diphenylmethyl diisocyanate , put into the reaction kettle and polymerize for 3 hours until the ...

Embodiment 3

[0071] (1) Weighing and compounding polyester polyol mixture, its composition and weight ratio are:

[0072] Grade PHL-1600 35 parts

[0073] Grade PH-2000 8 parts

[0074] Grade CMA-1044 20 parts

[0075] Grade CMA-44 8 copies;

[0076] The composition and weight ratio of the polyether polyol mixture are:

[0077] Grade 4110 42 parts

[0078] Grade N-330 30 parts

[0079] Grade N-251 20 parts

[0080] Grade GP-104G 15 parts

[0081] Grade EP-330N 11 copies;

[0082] (2) Weigh 100 parts of polyether polyol mixture, 1100 parts of polyester polyol mixture, 13 parts of YH-55 coupling agent, 200 parts of polyamide resin and 9 parts of nano-silica into the reaction kettle according to the weight ratio. Heat up to 115°C under the pressure of -0.08~-0.1 MPa to melt, dehydrate until the liquid material has no bubbles to escape, cool down to 80°C, weigh 180 parts of diphenylmethyl diisocyanate, add to the reaction kettle for polymerization reaction 3 h, until ...

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Abstract

The invention belongs to the technical field of chemical adhesive, and relates to a preparing method for polyurethane wet curing hot melt flat adhesive and application thereof. The polyurethane wet curing hot melt flat adhesive is composed of the following components in parts by weight: a polyester polyol mixture, a polyether polyol mixture, xylene diisocynate, a plasticizer, a chain extender, a tackifier and a catalyst, wherein the relative molecular mass of the polyester polyol mixture is 1000-5000; the relative molecular mass of the polyether polyol mixture is 1500-6000; the polyurethane wet curing hot melt flat adhesive contains no organic solvent, the solid content is 100%, the 'positioning' time is short, the pasting between the decorative film and the base material to be decorated is rapid and accurate, the bonding strength is high, the anti-stripping performance is good, the cured adhesive film is soft and flexible, the cured adhesive film has no cryogenic brittleness at low temperature, and the cured adhesive film also has water resistance and weak acid and weak base resistance and is capable of the operating environment with 80 DEG temperature.

Description

technical field [0001] The invention belongs to the technical field of synthetic adhesives, and relates to an adhesive used in the furniture and building materials industry, in particular to a polyurethane moisture-curing hot-melt flat adhesive for flat decoration and a production method thereof. Background technique [0002] In the past, the adhesives used in the decoration process in the furniture and building materials industry were solvent glue or water-based glue. The resin components include epoxy, phenolic, urea-formaldehyde, melamine-formaldehyde, white latex, and universal glue. However, the disadvantage of these adhesives is that they need to be heated and cured, or the moisture content of the bonded materials is required to be low; what is more fatal is that these adhesives contain free formaldehyde or organic solvents that damage the environment, which are harmful to human health, production and living environment. Influence. From the perspective of sizing proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J175/06C08G18/76C08G18/48C08G18/42C08G18/08
Inventor 舒跃辉蒋海林
Owner 舒跃辉
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