Water-resistant waterborne polyurethane ink vehicle and preparation method thereof

A technology of water-based polyurethane and ink connecting material, which is applied in the direction of ink, household appliances, application, etc., can solve the problem of insufficient water resistance of water-based polyurethane ink connecting material

Active Publication Date: 2016-07-20
禾瑞(漳州)助剂有限公司
View PDF5 Cites 3 Cited by
  • 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 water-resistant water-based polyurethane ink binder and its preparation method for the problem of insufficient water resistance of the water-based polyurethane ink binder

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water-resistant waterborne polyurethane ink vehicle and preparation method thereof
  • Water-resistant waterborne polyurethane ink vehicle and preparation method thereof
  • Water-resistant waterborne polyurethane ink vehicle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of a kind of water-resistant type water-based polyurethane ink binder of the present embodiment is as follows:

[0030] (1) Take 200ml of absolute ethanol, add hydrochloric acid dropwise to it to adjust the pH value to 3~4, then take 25ml of 3-methacryloxypropyltrimethoxysilane and add it to the ethanol-hydrochloric acid system for 30min Hydrolyze thoroughly until the mixed solution is clear and transparent, and let it stand at room temperature for later use;

[0031] (2) Weigh 1.0g of bacterial cellulose and 100.0g of thoroughly hydrolyzed silanol and ethanol-hydrochloric acid mixed solution and place it in a conical flask. The surface modification process of bacterial cellulose requires a reaction temperature of 60°C and a reaction time of 2h , the mechanical stirring speed is 60r / min, after the modification reaction is finished, the bacterial cellulose is vacuum-filtered and washed 3 times with absolute ethanol to prepare 1.06g of modified bact...

Embodiment 2

[0037] The preparation method of a kind of water-resistant type water-based polyurethane ink binder of the present embodiment is as follows:

[0038] (1) Take 300ml of absolute ethanol, add hydrochloric acid dropwise to it to adjust the pH value to 3~4, then take 34ml of 3-(2,3-glycidoxy)propyltrimethoxysilane and add it to the above ethanol- Carry out hydrolysis in the hydrochloric acid system for 30 minutes until the mixed solution is clear and transparent, and let it stand at room temperature for later use;

[0039] (2) Weigh 2.0g of bacterial cellulose and 200.0g of thoroughly hydrolyzed silanol and ethanol-hydrochloric acid mixed solution and place it in a conical flask. The surface modification process of bacterial cellulose requires a reaction temperature of 60°C and a reaction time of 2h , the mechanical stirring speed is 60r / min, after the modification reaction is finished, the bacterial cellulose is vacuum filtered and washed 3 times with absolute ethanol to prepare ...

Embodiment 3

[0045] The preparation method of a kind of water-resistant type water-based polyurethane ink binder of the present embodiment is as follows:

[0046] (1) Take 200ml of absolute ethanol, add hydrochloric acid dropwise to it to adjust the pH value to 3~4, then measure 20ml of 3-(2,3-glycidoxy)propyltrimethoxysilane and add it to the above ethanol- Carry out hydrolysis in the hydrochloric acid system for 30 minutes until the mixed solution is clear and transparent, and let it stand at room temperature for later use;

[0047] (2) Weigh 1.5g of bacterial cellulose and 150.0g of thoroughly hydrolyzed silanol and ethanol-hydrochloric acid mixed solution and place it in a conical flask. The surface modification process of bacterial cellulose requires a reaction temperature of 60°C and a reaction time of 2h , the mechanical stirring speed is 60r / min, after the modification reaction is finished, the bacterial cellulose is vacuum filtered and washed 3 times with absolute ethanol to prepa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
lengthaaaaaaaaaa
water absorptionaaaaaaaaaa
Login to view more

Abstract

The invention discloses a water-resistant waterborne polyurethane ink vehicle and a preparation method thereof. The main components of the ink vehicle are bacterial cellulose after modification treatment by a silane coupling agent and waterborne polyurethane prepolymer, wherein the length of the bacterial cellulose is 200-500nm, and the diameter is 60-100nm. The preparation method comprises the following steps: hydrolysis of the silane coupling agent, modification of the bacterial cellulose, synthesis of the waterborne polyurethane prepolymer, synthesis of a waterborne polyurethane emulsion and preparation of the water-resistant waterborne polyurethane ink vehicle. According to the water-resistant waterborne polyurethane ink vehicle disclosed by the invention, the 24h water absorption is lower than 8.0%; and the preparation method is simple and conforms to the requirement of environmental protection for sustainable development.

Description

technical field [0001] The invention belongs to the technical field of preparation of organic polymer materials, in particular to a water-resistant water-based polyurethane ink binder mainly based on the cross-linked structure of bacterial cellulose and polyurethane molecular chains and a preparation method thereof. Background technique [0002] The performance of water-based ink is directly affected by the binder. The early water-based ink binder is mainly a resin modified by rosin and maleic acid, and its performance is poor. Later, people began to apply the copolymer of acrylate monomer and styrene to water-based ink. Although it can have outstanding performance in terms of gloss and weather resistance, the effect of improving water resistance is still not obvious. [0003] At present, the research on the water resistance of water-based inks is mainly focused on improving the crosslinking degree of the ink coating film. Common methods include internal crosslinking, extern...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/102C09D11/03C08G18/10C08G18/64C08G18/32
CPCC08G18/10C08G18/6484C09D11/03C09D11/102C08G18/3206C08G18/64
Inventor 张浩辛长征陈垒仝瑞芳李姝汶
Owner 禾瑞(漳州)助剂有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap