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A kind of preparation method of high anti-reflection water-based polyurethane transfer adhesive

A water-based polyurethane and polyester diol technology, applied in polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve the problem of water-based polyurethane transfer adhesive imperfection, water-based polyurethane transfer adhesive heat sticking performance , peeling resistance, folding resistance can not meet the requirements, the performance of water-based polyurethane transfer adhesive is not ideal, etc., to achieve the effect of low peel strength, good peel performance and high peel strength

Active Publication Date: 2018-01-02
山东奥德美高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the incomplete research on water-based polyurethane transfer adhesives, there are still many unsatisfactory performances of water-based polyurethane transfer adhesives. can not meet the requirements

Method used

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  • A kind of preparation method of high anti-reflection water-based polyurethane transfer adhesive
  • A kind of preparation method of high anti-reflection water-based polyurethane transfer adhesive
  • A kind of preparation method of high anti-reflection water-based polyurethane transfer adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment one: a kind of aqueous polyurethane emulsion, preparation method is as follows:

[0031] 1. Prepare materials according to the following components and proportions:

[0032] Polyester diol 1000 molecular weight 50KG, (2000 molecular weight is 100KG), polycarbonate diol 1000 molecular weight 40KG, (2000 molecular weight 80KG), TMP 1KG, hydrogenated phenylmethane diisocyanate (H12MDI) 60KG, two Methylol propionic acid DMPA 5KG, 1,4 cyclohexanedimethanol 6KG, or 1,4 butanediol 3KG.

[0033] 2. Raw material mixing, heating and dehydration

[0034] Measure polyester diol and polycarbonate diol, add chain extender trimethylolpropane (TMP), stir the three evenly and heat to 120°C, dehydrate under vacuum for 1h, then cool down to 80-95°C.

[0035] 3. Prepolymer synthesis:

[0036] Add hydrogenated phenylmethane diisocyanate (H12MDI) into diol, control the temperature at 80-95°C, stir for 2 hours, then add hydrophilic chain extender dimethylol propionic acid (DMPA)...

Embodiment 2

[0041] Embodiment two: a kind of aqueous polyurethane emulsion, obtains by following preparation method:

[0042] 1. Prepare materials according to the following components and ratios

[0043] Polyester diol 1000 molecular weight 60KG, (2000 molecular weight is 120KG), polycarbonate diol 1000 molecular weight 50KG, (2000 molecular weight 100KG), TMP 2KG, hydrogenated phenylmethane diisocyanate (H12MDI) 120KG, Dimethylol propionic acid DMPA 7.5KG, 1,4 cyclohexanedimethanol 8KG, or 1,4 butanediol 5KG

[0044] 2. Raw material mixing, heating and dehydration

[0045] Measure polyester diol and polycarbonate diol, add chain extender trimethylolpropane (TMP), stir the three evenly and heat to 120°C, dehydrate under vacuum for 1h, then cool down to 80-95°C.

[0046] 3. Prepolymer synthesis

[0047] Add hydrogenated phenylmethane diisocyanate (H12MDI) into diol, control the temperature at 80-95°C, stir for 2 hours, then add hydrophilic chain extender dimethylol propionic acid (DMPA...

Embodiment 3

[0052] Embodiment three: a kind of aqueous polyurethane emulsion, obtains by following preparation method:

[0053] 1. Prepare materials according to the following components and ratios

[0054] Polyester diol 1000 molecular weight 70KG, (2000 molecular weight is 140KG), polycarbonate diol 1000 molecular weight 55KG, (2000 molecular weight 110KG), TMP 2.5KG, 1, hydrogenated phenylmethane diisocyanate (H12MDI) 95KG, dimethylol propionic acid DMPA 10KG, 1,4 cyclohexanedimethanol 10KG, or 1,4 butanediol 6KG.

[0055] 2. Raw material mixing, heating and dehydration

[0056] Measure polyester diol and polycarbonate diol, add chain extender trimethylolpropane (TMP), stir the three evenly and heat to 120°C, dehydrate under vacuum for 1h, then cool down to 80-95°C.

[0057] 3. Prepolymer synthesis

[0058] Add hydrogenated phenylmethane diisocyanate (H12MDI) into diol, control the temperature at 80-95°C, stir for 2 hours, then add hydrophilic chain extender dimethylol propionic aci...

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Abstract

The invention relates to a preparation method of waterborne polyurethane transfer glue. The paint comprises the following content components (wt%): 24.5-28 of polycarbonate diol, 30-37 of polyester diol, 28-37 of hydrogenated phenylmethane diisocyanate (H12MDI), 3-3.5 of a hydrophilic chain extender, 2-10 of a chain extender, 1-3 of a neutralization agent, and 1.5-4 of N-methyl pyrrolidone (NMP). The preparation process includes: material preparation, raw material mixing, heating and dehydration, prepolymer synthesis, prepolymer neutralization and dispersion, chain extension, desolvation and emulsification. Compared with the prior art, the polyurethane transfer glue provided by the invention has the advantages of excellent thermal prunt resistance, good adhesion and good folding resistance, and is suitable for offset printing, gravure printing, and other printing processes.

Description

technical field [0001] The invention relates to a high anti-reflection polyurethane transfer adhesive and a preparation method thereof, in particular to a water-based polyurethane transfer adhesive which is heat-resistant and sticky, has good folding resistance and good adhesion, and is suitable for gravure printing and offset printing, and a preparation method thereof. Background technique [0002] Waterborne polyurethane uses water as the dispersion medium. It has the advantages of non-toxic, non-flammable, non-polluting, energy-saving, safe and reliable, and meets the development requirements of green industry. [0003] However, due to the incomplete research on water-based polyurethane transfer adhesives, there are still many unsatisfactory performances of water-based polyurethane transfer adhesives. The request cannot be met. The invention studies the anti-heat sticking performance, anti-peeling property, folding resistance and the like of the water-based polyurethane ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/06C08G18/66C08G18/42C08G18/44C08G18/34C08G18/32C08G18/12
CPCC08G18/12C08G18/4202C08G18/44C08G18/664C08G18/6644C08G18/6659C09J175/06C08G18/3234
Inventor 董其兴孙晓泽
Owner 山东奥德美高分子材料有限公司