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A kind of high temperature resistant water-based polyurethane ink binder and preparation method thereof

A technology of water-based polyurethane and ink binder, applied in the direction of ink, single-component synthetic polymer rayon, application, etc., can solve the problems of poor high-temperature stability of ink, and achieve the effect of improving high-temperature resistance

Active Publication Date: 2018-08-14
武汉市伟特化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of high-temperature-resistant water-based polyurethane ink binder for the poor high-temperature stability of the ink with water-based polyurethane as the binder. In its structure, there are polyacrylonitrile electrospun fibers and polyurethane The network structure formed by the interweaving of molecular chains will lead to the densification of the link material structure, and then show the structural stability under high temperature conditions

Method used

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  • A kind of high temperature resistant water-based polyurethane ink binder and preparation method thereof
  • A kind of high temperature resistant water-based polyurethane ink binder and preparation method thereof
  • A kind of high temperature resistant water-based polyurethane ink binder and preparation method thereof

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Effect test

Embodiment 1

[0030] The preparation method of a kind of high temperature resistant water-based polyurethane ink binder of the present embodiment is as follows:

[0031] (1) Mix 20.0g of N,N-dimethylformamide and 4.0g of polyacrylonitrile and place it in a conical flask for heating in a water bath. The temperature of the water bath is 60°C, and the time of the water bath is 5 minutes. The rotating speed is 120r / min, and 23.1g of spinning solution is prepared;

[0032] (2) Take 10.0g of spinning solution and put it into a medical syringe. The negative pressure of the electrospinning process is -3.0kV, the positive pressure is 25.0kV, the ambient temperature is 50°C, and the flow rate is 1.0ml / h. The distance between them was 25cm, and 9.8g polyacrylonitrile electrospun fibers were prepared;

[0033] (3) Mix 30.0g of polycarbonate diol with 5.0g of dimethylolpropionic acid and heat to 100~110°C, keep it warm for 30 minutes and cool to room temperature, then mix the above mixed solution with ...

Embodiment 2

[0038] The preparation method of a kind of high temperature resistant water-based polyurethane ink binder of the present embodiment is as follows:

[0039] (1) Mix 35.0g of N,N-dimethylformamide and 5.0g of polyacrylonitrile and place it in a conical flask for heating in a water bath. The temperature of the water bath is 60°C, and the time of the water bath is 5 minutes. The rotating speed was 120r / min, and 38.7g of spinning solution was prepared;

[0040] (2) Take 20.0g of spinning solution and put it into a medical syringe. The negative pressure of the electrospinning process is -3.0kV, the positive pressure is 25.0kV, the ambient temperature is 50°C, and the flow rate is 1.5ml / h. The distance between them was 25cm, and 18.5g polyacrylonitrile electrospun fibers were prepared;

[0041] (3) Mix 21.0g of polycarbonate diol with 3.0g of dimethylolpropionic acid and heat to 100~110°C, keep it warm for 30 minutes and cool to room temperature, then mix the above mixed solution with...

Embodiment 3

[0046] The preparation method of a kind of high temperature resistant water-based polyurethane ink binder of the present embodiment is as follows:

[0047] (1) Mix 32.0g of N,N-dimethylformamide with 4.0g of polyacrylonitrile and place it in a conical flask for heating in a water bath. The temperature of the water bath is 60°C, and the time of the water bath is 5 minutes. The mechanical stirring speed is 120r / min, and 34.9g spinning solution can be prepared;

[0048] (2) Take 30.0g of spinning solution and put it into a medical syringe. The negative pressure of the electrospinning process is -3.0kV, the positive pressure is 25.0kV, the ambient temperature is 50°C, and the flow rate is 2.0ml / h. The distance between them is 25cm, and 29.1g polyacrylonitrile electrospun fibers are prepared;

[0049] (3) Mix 40.0g polyoxypropylene diol with 5.0g dimethylol propionic acid and heat to 100~110°C, keep warm for 30 minutes and cool to room temperature, then mix the above mixed solutio...

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Abstract

The invention discloses a high-temperature-resistant waterborne polyurethane ink vehicle and a preparing method thereof .According to the method, the main structure of the ink vehicle is a network structure formed by interweaving polyacrylonitrile electrostatic spinning fiber and a waterborne polyurethane molecular chain, and polycarbonate diol, or polycaprolactone diol or polypropylene oxide diol reacts with methyl cyclohexyl diisocyanate or diphenylmethane diisocyanate to obtain the waterborne polyurethane molecular chain .The preparing method includes the following steps of preparing a spinning solution, obtaining electrostatic spinning fiber, synthesizing a waterborne polyurethane prepolymer, synthesizing waterborne polyurethane prepolymer emulsion and preparing the high-temperature-resistant waterborne polyurethane ink vehicle .The heat stability of the high-temperature-resistant waterborne polyurethane ink vehicle is obviously improved, the preparing method is simple, and emission of pollutants is avoided.

Description

technical field [0001] The invention relates to a high-temperature-resistant water-based polyurethane ink binder, in particular to a water-based polyurethane ink binder with a network structure interwoven with polyacrylonitrile electrospun fibers and polyurethane molecular chains and its preparation method. Background technique [0002] Water-based polyurethane has the advantages of environmental protection, safety, and low cost. It is currently one of the most promising printing ink binders. However, the molecular chain structure of water-based polyurethane has relatively poor structural stability under high temperature conditions. The high temperature resistance of the ink of the material is affected. [0003] There are many ways to improve the high-temperature stability of the molecular chain structure of waterborne polyurethane, mainly including introducing groups such as organic heterocyclic rings with large cohesive energy and high degradation temperature into the mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/102C09D11/106C09D11/03D01F6/18D01D5/00C08G18/66C08G18/44C08G18/42C08G18/48C08G18/34C08G18/12C08G18/32
CPCC08G18/12C08G18/348C08G18/4277C08G18/44C08G18/4845C08G18/6659C08G18/6692C09D11/03C09D11/102C09D11/106D01D5/0007D01F6/18C08G18/3206C08G18/3228C08G18/3234
Inventor 张浩辛长征杨柳李姝汶仝瑞芳
Owner 武汉市伟特化工有限公司
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