Environment-friendly water-based oil polish and preparation method thereof

Abstract

The invention belongs to the technical field of functional oil products, and particularly relates to environment-friendly water-based oil polish and a preparation method thereof. The environment-friendly water-based glazing oil provided by the invention comprises the following components: 1000 parts by mass of deionized water; 400 to 750 parts by mass of a waterborne polyurethane dispersion liquid; 350-500 parts by mass of an acrylic resin liquid; 10-50 parts by mass of an emulsifier; 0.5-3 parts by mass of a defoaming agent; 40-80 parts by mass of a coalescing agent; 1-5 parts by mass of an anti-ultraviolet agent; 1-5 parts by mass of a rheology modifier; 1-10 parts by mass of an antistatic agent; and 0.5-3 parts by mass of a preservative. The environment-friendly water-based glazing oil prepared by the invention not only realizes high glossiness of 87-89%, but also shows excellent adhesive force, is suitable for various base materials such as PET (Polyethylene Terephthalate), PVC (Polyvinyl Chloride), paperboards, white cardboards and the like, and has excellent interfacial compatibility and wet stability. In addition, the water-based glazing oil has the characteristics of no toxicity, no odor, no combustion and the like, the safety and the environmental protection property of the water-based glazing oil in the production, storage and use processes are greatly improved, and the water-based glazing oil conforms to the development trend of modern green chemistry.

Description

Technical Field

[0001] The present invention belongs to the technical field of functional oil products, and specifically relates to an environmentally friendly water-based varnish and a preparation method thereof, in particular to an environmentally friendly water-based varnish suitable for surface treatment of various printed materials, plastic products, paper and the like to improve product gloss and other properties. Background Art

[0002] With the development of social economy and the improvement of people's living standards, the requirements for surface treatment of printed materials, packaging materials, etc. are getting higher and higher. Although traditional solvent-based varnishes can provide good gloss and physical properties, they contain a large amount of organic solvents, which cause serious environmental pollution and potential safety hazards. They are gradually unable to meet the requirements of modern society for environmental protection and safety. Therefore, the development of environmentally friendly water-based varnishes has become an inevitable trend in the development of the industry.

[0003] In recent years, water-based varnish has attracted wide attention due to its advantages of being non-toxic, harmless and non-flammable, and has been gradually applied in many fields. However, the existing water-based varnish still has some shortcomings, such as low gloss, poor adhesion, poor water resistance and weather resistance, which limit its wider application. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an environmentally friendly water-based glazing oil and a preparation method thereof. The purpose of the present invention is to provide an environmentally friendly water-based glazing oil with wide applicability, high gloss, strong adhesion, and good water resistance, which meets the surface treatment requirements of different substrates and has excellent environmental performance, and is in line with the current development direction of green chemistry.

[0005] The first aspect of the present invention is to provide an environmentally friendly water-based glazing oil, comprising the following components:

[0006]

[0007] As an optimization solution for the above-mentioned environmentally friendly water-based varnish, the water-based polyurethane dispersion is 4220 water-based polyurethane dispersion; the acrylic resin liquid is any one or more of Joncryl 67, Joncryl 68, Joncryl 61, Bayhydrol123, Bayhydrol 144, WPA-100, WPA-200, and WPA-300.

[0008] As an optimization scheme for the above-mentioned environmentally friendly water-based varnish, the emulsifier is any one or more of polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan monooleate.

[0009] As an optimization solution for the above-mentioned environmentally friendly water-based varnish, the defoaming agent is any one or more of BYK-024, BYK-025, and TEGOFoamex 810.

[0010] As an optimization solution for the above-mentioned environmentally friendly water-based varnish, the film-forming aid is ethylene glycol monobutyl ether or dipropylene glycol butyl ether.

[0011] As an optimization solution for the above-mentioned environmentally friendly water-based varnish, the anti-ultraviolet agent is UV-531 anti-ultraviolet agent.

[0012] As an optimization solution for the above-mentioned environmentally friendly water-based varnish, the rheology modifier is Rheolate 205 or Rheolate 208.

[0013] As an optimization solution for the above-mentioned environmentally friendly water-based varnish, the antistatic agent is Armostat 890 or Atmer 1630.

[0014] As an optimization solution for the above-mentioned environmentally friendly water-based varnish, the preservative is isothiazolinone or benzisothiazolinone.

[0015] The second aspect of the present invention is to provide a method for preparing the above-mentioned environmentally friendly water-based varnish, comprising the following steps: adding deionized water, emulsifier, defoamer, film-forming aid, anti-ultraviolet agent, rheology modifier, antistatic agent and preservative to a stirring tank in sequence, turning on the agitator, setting the speed to 600-800r / min, stirring evenly to fully mix the ingredients; then, slowly adding the aqueous polyurethane dispersion and acrylic resin liquid under stirring, and continuing stirring for 30-60 minutes to ensure that all ingredients are evenly dispersed; finally, filtering the mixed solution to remove possible particles to obtain an environmentally friendly water-based varnish product.

[0016] Beneficial Effects

[0017] Compared with the prior art, the environmentally friendly water-based glazing oil prepared by the present invention, through the regulation and matching of water-based polyurethane dispersion, acrylic resin liquid and a variety of functional additives, not only achieves a high gloss of 87%-89%, but also exhibits excellent adhesion, and is suitable for a variety of substrates such as PET, PVC, cardboard, white cardboard, etc., and has excellent interfacial compatibility and wet stability. In addition, the water-based glazing oil has the characteristics of being non-toxic, odorless, and non-flammable, which greatly improves its safety and environmental protection during production, storage and use, and is in line with the development trend of modern green chemistry. DETAILED DESCRIPTION

[0018] The present invention is further illustrated by specific examples below. These examples are exemplary and are intended to illustrate the problem and explain the present invention, but are not intended to be limiting.

[0019] The method for preparing the environmentally friendly water-based varnish in the embodiment is: deionized water, emulsifier, defoamer, film-forming aid, anti-ultraviolet agent, rheology modifier, antistatic agent and preservative are added to a stirring tank in order, the agitator is turned on, the speed is set to 700r / min, and the mixture is stirred evenly to fully mix the ingredients; then, under stirring, the aqueous polyurethane dispersion and the acrylic resin liquid are slowly added, and stirring is continued for 40 minutes to ensure that all ingredients are evenly dispersed; finally, the mixed solution is filtered to remove possible particles to obtain an environmentally friendly water-based varnish product.

[0020] Example 1

[0021] The water-based glazing oil of this embodiment comprises the following components:

[0022] 1000 parts by mass of deionized water;

[0023] 400 parts by mass of aqueous polyurethane dispersion;

[0024] 350 parts by mass of acrylic resin liquid;

[0025] Emulsifier 10 parts by mass;

[0026] Defoaming agent 0.5 parts by mass;

[0027] 40 parts by weight of film-forming aid;

[0028] 1 part by mass of anti-ultraviolet agent;

[0029] 1 part by mass of rheology modifier;

[0030] 1 part by mass of antistatic agent;

[0031] 0.5 parts by mass of preservatives.

[0032] In this embodiment, the aqueous polyurethane dispersion is 4220 waterborne polyurethane dispersion.

[0033] In this embodiment, the acrylic resin liquid is Joncryl 67.

[0034] In this embodiment, the emulsifier is polyoxyethylene sorbitan monolaurate.

[0035] In this embodiment, the defoaming agent is BYK-024.

[0036] In this embodiment, the film-forming aid is ethylene glycol monobutyl ether.

[0037] In this embodiment, the anti-ultraviolet agent is UV-531 anti-ultraviolet agent.

[0038] In this embodiment, the rheology modifier is Rheolate 205.

[0039] In this embodiment, the antistatic agent is Armostat 890.

[0040] In this embodiment, the preservative is isothiazolinone.

[0041] Example 2

[0042] The water-based glazing oil of this embodiment comprises the following components:

[0043]

[0044] In this embodiment, the aqueous polyurethane dispersion is 4220 waterborne polyurethane dispersion.

[0045] In this embodiment, the acrylic resin liquid is Joncryl 67.

[0046] In this embodiment, the emulsifier is polyoxyethylene sorbitan monolaurate.

[0047] In this embodiment, the defoaming agent is BYK-024.

[0048] In this embodiment, the film-forming aid is ethylene glycol monobutyl ether.

[0049] In this embodiment, the anti-ultraviolet agent is UV-531 anti-ultraviolet agent.

[0050] In this embodiment, the rheology modifier is Rheolate 205.

[0051] In this embodiment, the antistatic agent is Armostat 890.

[0052] In this embodiment, the preservative is isothiazolinone.

[0053] Example 3

[0054] The water-based glazing oil of this embodiment comprises the following components:

[0055]

[0056] In this embodiment, the aqueous polyurethane dispersion is 4220 waterborne polyurethane dispersion.

[0057] In this embodiment, the acrylic resin liquid is Joncryl 67.

[0058] In this embodiment, the emulsifier is polyoxyethylene sorbitan monolaurate.

[0059] In this embodiment, the defoaming agent is BYK-024.

[0060] In this embodiment, the film-forming aid is ethylene glycol monobutyl ether.

[0061] In this embodiment, the anti-ultraviolet agent is UV-531 anti-ultraviolet agent.

[0062] In this embodiment, the rheology modifier is Rheolate 205.

[0063] In this embodiment, the antistatic agent is Armostat 890.

[0064] In this embodiment, the preservative is isothiazolinone.

[0065] Example 4

[0066] The water-based glazing oil of this embodiment comprises the following components:

[0067]

[0068] In this embodiment, the aqueous polyurethane dispersion is 4220 waterborne polyurethane dispersion.

[0069] In this embodiment, the acrylic resin liquid is Joncryl 61.

[0070] In this embodiment, the emulsifier is polyoxyethylene sorbitan monostearate.

[0071] In this embodiment, the defoaming agent is BYK-025.

[0072] In this embodiment, the film-forming aid is ethylene glycol monobutyl ether.

[0073] In this embodiment, the anti-ultraviolet agent is UV-531 anti-ultraviolet agent.

[0074] In this embodiment, the rheology modifier is Rheolate 208.

[0075] In this embodiment, the antistatic agent is Atmer 1630.

[0076] In this embodiment, the preservative is benzisothiazolinone.

[0077] Example 5

[0078] The water-based glazing oil of this embodiment comprises the following components:

[0079]

[0080] In this embodiment, the aqueous polyurethane dispersion is 4220 waterborne polyurethane dispersion.

[0081] In this embodiment, the acrylic resin liquid is WPA-200.

[0082] In this embodiment, polyoxyethylene sorbitan monostearate.

[0083] In this embodiment, the defoaming agent is BYK-024.

[0084] In this embodiment, the film-forming aid is dipropylene glycol butyl ether.

[0085] In this embodiment, the anti-ultraviolet agent is UV-531 anti-ultraviolet agent.

[0086] In this embodiment, the rheology modifier is Rheolate 208.

[0087] In this embodiment, the antistatic agent is Atmer 1630.

[0088] In this embodiment, the preservative is benzisothiazolinone.

[0089] Example 6

[0090] The water-based glazing oil of this embodiment comprises the following components:

[0091]

[0092] In this embodiment, the aqueous polyurethane dispersion is 4220 waterborne polyurethane dispersion.

[0093] In this embodiment, the acrylic resin liquid is Bayhydrol 144.

[0094] In this embodiment, polyoxyethylene sorbitan monooleate.

[0095] In this embodiment, the defoaming agent is BYK-024.

[0096] In this embodiment, the film-forming aid is ethylene glycol monobutyl ether.

[0097] In this embodiment, the anti-ultraviolet agent is UV-531 anti-ultraviolet agent.

[0098] In this embodiment, the rheology modifier is Rheolate 208.

[0099] In this embodiment, the antistatic agent is Armostat 890.

[0100] In this embodiment, the preservative is isothiazolinone.

[0101] The water-based varnish prepared in the above embodiment was tested, and the glossiness was measured by a KGZ-IB radial 60-degree gloss meter according to the national standard GB / T 9754-1988; the adhesion of the water-based varnish film layer was measured by the cross-cut method according to the national standard GB / T 9286-1988. The test results are shown in Table 1.

[0102] Table 1

[0103] Example Glossiness Adhesion Example 1 89％ Level 1 Example 2 87％ Level 1 Example 3 88％ Level 1 Example 4 88％ Level 1 Example 5 87％ Level 1 Example 6 89％ Level 1

[0104] The water-based varnish prepared in the embodiment has excellent physical properties. By using the water-based polyurethane dispersion, acrylic resin liquid and additives with specific components and proportions, it not only achieves a glossiness as high as 87%-89%, but also has excellent adhesion.

[0105] The water-based varnish prepared in the embodiment is well compatible with various substrates, especially environmentally friendly materials such as PET and PVC, and printing media such as cardboard and white cardboard. Thanks to the compounded emulsifier, rheology modifier and other additives, the interface interaction between the coating and the substrate is improved, and good adhesion can be maintained even in a humid environment, reducing the risk of coating shedding or blistering.

[0106] The water-based varnish prepared in the embodiment has excellent safety and environmental protection performance. The varnish is non-toxic, odorless and non-flammable, which greatly reduces the potential safety hazards in the production, storage and application processes, and meets the current growing demand for green chemical products worldwide.

[0107] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the present invention so that people familiar with the technology in this field can understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly water-based varnish, characterized by: Includes the following components: Deionized water 1000 parts by mass; 400-750 parts by mass of aqueous polyurethane dispersion; 350-500 parts by mass of acrylic resin liquid; Emulsifier 10-50 parts by weight; Defoaming agent 0.5~3 parts by mass; 40-80 parts by weight of film-forming aid; 1-5 parts by weight of anti-ultraviolet agent; 1-5 parts by mass of rheology modifier; 1-10 parts by weight of antistatic agent; Preservatives 0.5~3 parts by mass 2. The environmentally friendly water-based varnish according to claim 1, characterized in that: The aqueous polyurethane dispersion is Lacper® 4220 aqueous polyurethane dispersion; the acrylic resin liquid is any one or more of Joncryl 67, Joncryl 68, Joncryl61, Bayhydrol 123, Bayhydrol 144, WPA-100, WPA-200, and WPA-300.

3. The environmentally friendly water-based varnish according to claim 1, characterized in that: The emulsifier is any one or more of polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan monooleate.

4. The environmentally friendly water-based varnish according to claim 1, characterized in that: The defoaming agent is any one or more of BYK-024, BYK-025, and TEGO Foamex 810.

5. The environmentally friendly water-based varnish according to claim 1, characterized in that: The film-forming aid is ethylene glycol monobutyl ether or dipropylene glycol butyl ether.

6. The environmentally friendly water-based varnish according to claim 1, characterized in that: The anti-ultraviolet agent is UV-531 anti-ultraviolet agent.

7. The environmentally friendly water-based varnish according to claim 1, characterized in that: The rheology modifier is Rheolate 205 or Rheolate 208.

8. The environmentally friendly water-based varnish according to claim 1, characterized in that: The antistatic agent is Armostat890 or Atmer 1630.

9. The environmentally friendly water-based varnish according to claim 1, characterized in that: The preservative is isothiazolinone or benzisothiazolinone.

10. The method for preparing the environmentally friendly water-based varnish according to any one of claims 1 to 9, characterized in that: The following steps are involved: Deionized water, emulsifier, defoamer, film-forming aid, anti-ultraviolet agent, rheology modifier, antistatic agent and preservative are added to a stirring tank in sequence and stirred to mix thoroughly; then, under stirring, water-based polyurethane dispersion and acrylic resin liquid are added, and stirring is continued for 30-60 minutes to ensure that all ingredients are evenly dispersed; finally, the mixed liquid is filtered to remove possible particles to obtain the environmentally friendly water-based varnish finished product.

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