Aurora anti-scratching glaze varnish and preparation method thereof

Abstract

The invention provides aurora anti-scratching glaze varnish and a preparation method thereof. The aurora scratch-resistant glazed varnish is characterized by being prepared from the following raw materials in parts by weight: 50 to 60 parts of vinyl acid ester resin, 20 to 30 parts of alkyd resin, 1 to 2 parts of alum, 8 to 10 parts of high-hardness particles, 5 to 10 parts of ceramic micro powder, 5 to 7 parts of a nano material and 0.5 to 1 part of a scratch-resistant agent. The aurora scratch-resistant glazed varnish provided by the invention has relatively strong scratch resistance, and a compact paint film formed by the aurora scratch-resistant glazed varnish can resist friction and scratch of external objects.

Description

Technical Field

[0001] The invention relates to the technical field of glaze varnish, and in particular to an aurora anti-scratch glaze varnish and a preparation method thereof. Background Art

[0002] Glaze varnish is a special kind of coating. Glaze varnish is a transparent finishing paint, which is mainly used for the protection and beautification of wood surface.

[0003] Although existing glaze varnishes generally have a certain scratch resistance, their scratch resistance may not be completely ideal. Scratches or damage may still occur when used for a long time or subjected to strong external forces.

[0004] Therefore, we provide an aurora anti-scratch glaze varnish to solve the above problems. Summary of the invention

[0005] The invention provides an aurora scratch-resistant glaze varnish and a preparation method thereof. The aurora scratch-resistant glaze varnish has strong scratch resistance, and a dense paint film formed by the aurora scratch-resistant glaze varnish can resist friction and scratching by external objects.

[0006] According to one aspect of the present invention, an aurora anti-scratch glaze varnish is provided. Calculated by mass, the aurora anti-scratch glaze varnish includes the following raw materials: 50-60 parts of vinyl ester resin, 20-30 parts of alkyd resin, 1-2 parts of alum, 8-10 parts of high hardness particles, 5-10 parts of ceramic micropowder, 5-7 parts of nanomaterials, and 0.5-1 part of anti-scratch agent.

[0007] Preferably, the high hardness particles are prepared from cordierite powder and anorthite, and the weight ratio of cordierite powder to anorthite is (2-4):(3-5).

[0008] Preferably, the nano material is prepared from nano silicon dioxide and nano aluminum oxide, and the weight ratio of nano silicon dioxide to nano aluminum oxide is (2-4): (2-3).

[0009] Preferably, calculated by weight, the aurora anti-scratch glaze varnish also includes the following raw materials: 0.1 to 0.2 parts of a foaming agent, 0.2 to 0.5 parts of a defoaming agent, 0.2 to 0.3 parts of a thickener, and 0.5 to 0.9 parts of a film-forming aid.

[0010] According to another aspect of the present invention, there is provided a method for preparing an aurora anti-scratch glaze varnish, comprising the following steps:

[0011] S1. The vinyl ester resin and the alkyd resin are mixed and stirred in vacuum, and after the stirring is completed, the mixture is transferred to a sander, and high hardness particles, ceramic powders, nanomaterials, and alum are added to the sander for grinding. After the grinding is completed, the mixture in the sander is stirred in vacuum for the first time at 250 to 300 ° C to obtain a mixture A;

[0012] S2. Mix mixture A, foaming agent, defoaming agent, thickener and film-forming aid at 150-255°C and perform vacuum stirring for the second time. After stirring, add anti-scratch agent and perform vacuum stirring for the third time at 250-310°C. After stirring, filter the mixture in the vacuum mixer to obtain Aurora anti-scratch glaze varnish.

[0013] Preferably, the rotation speed of the first vacuum stirring in step S1 is 8000-10000 rpm.

[0014] Preferably, the grinding pressure in step S1 is 0.1-0.2 MPa, and the grinding fineness is 10-20 μm.

[0015] Preferably, the rotation speed of the second vacuum stirring in step S2 is 10000-12000 rpm.

[0016] Preferably, the rotation speed of the third vacuum stirring in step S2 is 10000-12000 rpm.

[0017] In the present invention, high-hardness particles, nanomaterials and ceramic powders are added in sequence during the coating preparation process. The high-hardness particles can significantly improve the hardness of the glaze varnish, thereby improving the scratch resistance of the glaze varnish. At the same time, the nanomaterials can fill the tiny pores on the paint surface to form a hard, wear-resistant protective film, effectively preventing the generation of small scratches, further improving the scratch resistance of the varnish, and the ceramic powder has a positive effect on the scratch resistance of the varnish. The ceramic powder is evenly dispersed in the glaze varnish to form a dense paint film structure that can resist friction and scratches from external objects. DETAILED DESCRIPTION

[0018] The following is a further clear and complete description of the technical features in the technical solution provided by the present invention in conjunction with the specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] Example 1

[0020] The present embodiment provides an aurora anti-scratch glaze varnish, and the preparation method of the aurora anti-scratch glaze varnish comprises the following steps:

[0021] S1. 50 parts by weight of vinyl ester resin and 20 parts by weight of alkyd resin were mixed and stirred in vacuum, and after stirring, they were transferred to a sander, 8 parts by weight of high hardness particles, 5 parts by weight of ceramic powder, 5 parts by weight of nanomaterials, and 1 part by weight of alum were added to the sander and ground. After grinding, the mixture was stirred in vacuum for the first time at 250 ° C in the sander to obtain a mixture A;

[0022] Among them, the high-hardness particles are prepared from cordierite powder and anorthite, and the weight ratio of cordierite powder to anorthite is 2:3; the nanomaterials are prepared from nano-silicon dioxide and nano-alumina, and the weight ratio of nano-silicon dioxide to nano-alumina is 2:2.

[0023] S2. Mix the mixture A, 0.1 parts by weight of foaming agent, 0.2 parts by weight of defoaming agent, 0.2 parts by weight of thickener and 0.5 parts by weight of film-forming aid and perform a second vacuum stirring at 150°C. After the stirring, add 0.5 parts by weight of anti-scratch agent and perform a third vacuum stirring at 250°C. After the stirring, filter the mixture in the vacuum mixer to obtain Aurora anti-scratch glaze varnish.

[0024] Example 2

[0025] The present embodiment provides an aurora anti-scratch glaze varnish, and the preparation method of the aurora anti-scratch glaze varnish comprises the following steps:

[0026] S1. 55 parts by weight of vinyl ester resin and 25 parts by weight of alkyd resin were mixed and stirred in vacuum, and after stirring, they were transferred to a sander, 9 parts by weight of high hardness particles, 7 parts by weight of ceramic powder, 6 parts by weight of nanomaterials, and 1.5 parts by weight of alum were added to the sander and ground, and after grinding, the mixture was stirred in vacuum for the first time at 250 ° C in the sander to obtain a mixture A;

[0027] Among them, the high-hardness particles are prepared from cordierite powder and calcium feldspar, and the weight ratio of cordierite powder to calcium feldspar is 3:4; the nanomaterials are prepared from nano-silicon dioxide and nano-alumina, and the weight ratio of nano-silicon dioxide to nano-alumina is 3:2.5.

[0028] S2. Mix the mixture A, 0.15 parts by weight of foaming agent, 0.35 parts by weight of defoaming agent, 0.25 parts by weight of thickener and 0.7 parts by weight of film-forming aid and perform a second vacuum stirring at 205°C. After the stirring, add 0.7 parts by weight of anti-scratch agent and perform a third vacuum stirring at 280°C. After the stirring, filter the mixture in the vacuum mixer to obtain Aurora anti-scratch glaze varnish.

[0029] Example 3

[0030] The present embodiment provides an aurora anti-scratch glaze varnish, and the preparation method of the aurora anti-scratch glaze varnish comprises the following steps:

[0031] S1. 60 parts by weight of vinyl ester resin and 30 parts by weight of alkyd resin were mixed and stirred in vacuum, and after stirring, they were transferred to a sander, 10 parts by weight of high hardness particles, 10 parts by weight of ceramic powder, 7 parts by weight of nanomaterials, and 2 parts by weight of alum were added to the sander and ground, and after grinding, the mixture in the sander was stirred in vacuum for the first time at 250 ° C to obtain a mixture A;

[0032] Among them, the high-hardness particles are prepared from cordierite powder and calcium feldspar, and the weight ratio of cordierite powder to calcium feldspar is 4:5; the nanomaterials are prepared from nano-silicon dioxide and nano-alumina, and the weight ratio of nano-silicon dioxide to nano-alumina is 4:3.

[0033] S2. Mix the mixture A, 0.2 parts by weight of foaming agent, 0.5 parts by weight of defoaming agent, 0.3 parts by weight of thickener and 0.9 parts by weight of film-forming aid and perform a second vacuum stirring at 205°C. After the stirring, add 1 part by weight of anti-scratch agent and perform a third vacuum stirring at 280°C. After the stirring, filter the mixture in the vacuum mixer to obtain Aurora anti-scratch glaze varnish.

[0034] Example 4

[0035] This embodiment provides an aurora anti-scratch glaze varnish, and compared with the embodiment 1, the difference in structure is that only cordierite powder is used in the raw materials used to prepare the high-hardness particles. In addition to the above differences, the materials, formula ratios and preparation operations used in this embodiment are strictly consistent with those in the embodiment 1.

[0036] Example 5

[0037] This embodiment provides an aurora anti-scratch glaze varnish, and compared with the embodiment 1, the difference in structure is that only nano silicon dioxide is used in the raw materials used to prepare the nano materials. In addition to the above differences, the materials, formula ratios and preparation operations used in this embodiment are strictly consistent with those in the embodiment 1.

[0038] Comparative Example 1

[0039] This comparative example provides a common glaze varnish on the market.

[0040] Test Case

[0041] 1. Test subjects

[0042] This test example uses the aurora anti-scratch glaze varnish provided in Examples 1 to 5 and the ordinary glaze varnish provided in Comparative Example 1 as test objects.

[0043] 2. Test content

[0044] The scratch resistance of the coating is tested with reference to JB / T 3998-1999 "Determination of Scraping and Leveling Properties of Coatings".

[0045] 3. Test results

[0046] Table 1 Test results of relevant properties of Aurora anti-scratch glaze varnish

[0047]

[0048]

[0049] The relevant performance test results of the aurora scratch-resistant glaze varnish provided in Examples 1 to 5 and Comparative Example 1 are shown in Table 1.

[0050] The coating thickness of all embodiments and comparative examples was 20 μm, and the test humidity and temperature were also kept consistent (humidity 55%, temperature 23° C.), ensuring the consistency of the test conditions.

[0051] Under the scratch test load of 50g, the Aurora anti-scratch glaze varnishes of Examples 1 to 3 all showed slight scratches, and the scratches were shallow and did not affect the overall appearance. In contrast, the scratches of Examples 4 and 5 were slightly obvious, but still did not penetrate the coating. The ordinary glaze varnish of Comparative Example 1 showed obvious scratches, and the scratches were deeper and had penetrated part of the coating.

[0052] When the scratch test load was increased to 70 g, the scratches of Examples 1 to 3 were still shallow and did not affect the overall appearance. The scratches of Examples 4 and 5 became more obvious, but also did not penetrate the coating. The scratches of Comparative Example 1 became deeper and had penetrated part of the coating.

[0053] Under a scratch test load of 100 g, the Aurora Anti-scratch Glaze Varnishes of Examples 1 to 3 had medium scratches, but the scratches did not penetrate the coating. The scratches of Examples 4 and 5 slightly penetrated the coating. The scratches of Comparative Example 1 were deep and wide, and had completely penetrated the coating.

[0054] The Aurora anti-scratch glaze varnish of Examples 1 to 3 exhibits excellent scratch resistance and maintains good coating integrity even under higher scratch test loads. This may be related to the ratio of vinyl ester resin and alkyd resin, the combination of high hardness particles and nanomaterials, and the preparation process in these examples. The Aurora anti-scratch glaze varnish of Examples 4 and 5 is slightly inferior to that of Examples 1 to 3 in terms of scratch resistance. This may be because only a single raw material (cordierite powder or nano-silica) is used in the preparation of high hardness particles and nanomaterials, resulting in a decrease in the hardness and wear resistance of the coating. Compared with Comparative Example 1, the Aurora anti-scratch glaze varnish of all examples shows obvious advantages in scratch resistance.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the technical solutions of the present invention can be modified or equivalently replaced, but these modifications or replacements are all within the protection scope of the present invention.

Claims

1. An aurora anti-scratch glaze varnish, characterized in that: Calculated by weight, the raw materials include: 50-60 parts of vinyl ester resin, 20-30 parts of alkyd resin, 1-2 parts of alum, 8-10 parts of high hardness particles, 5-10 parts of ceramic micropowder, 5-7 parts of nanomaterials, and 0.5-1 part of anti-scratch agent.

2. The aurora anti-scratch glaze varnish according to claim 1, characterized in that: The high-hardness particles are prepared from cordierite powder and anorthite, and the weight ratio of the cordierite powder to the anorthite is (2-4):(3-5).

3. The aurora anti-scratch glaze varnish according to claim 1, characterized in that: The nano material is prepared from nano silicon dioxide and nano aluminum oxide, and the weight ratio of the nano silicon dioxide to the nano aluminum oxide is (2-4): (2-3).

4. The aurora anti-scratch glaze varnish according to claim 1, characterized in that: Calculated by weight, the following raw materials are also included: 0.1-0.2 parts of foaming agent, 0.2-0.5 parts of defoaming agent, 0.2-0.3 parts of thickener, and 0.5-0.9 parts of film-forming aid.

5. A method for preparing the aurora anti-scratch glaze varnish according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. The vinyl ester resin and the alkyd resin are mixed and stirred in vacuum, and after stirring, they are transferred to a sander, and the high hardness particles, the ceramic powder, the nanomaterial, and the alum are added to the sander for grinding. After grinding, the mixture in the sander is stirred in vacuum for the first time at 250 to 300 ° C to obtain a mixture A; S2. The mixture A, the foaming agent, the defoaming agent, the thickener and the film-forming aid are mixed at 150-255°C and vacuum stirred for the second time. After the stirring, the anti-scratch agent is added and vacuum stirred for the third time at 250-310°C. After the stirring, the mixture in the vacuum mixer is filtered to obtain the aurora anti-scratch glaze varnish.

6. The preparation method according to claim 5, characterized in that: The rotation speed of the first vacuum stirring in step S1 is 8000-10000 rpm.

7. The preparation method according to claim 5, characterized in that: The grinding pressure in step S1 is 0.1-0.2 MPa, and the grinding fineness is 10-20 μm.

8. The preparation method according to claim 5, characterized in that: The rotation speed of the second vacuum stirring in step S2 is 10000-12000 rpm.

9. The preparation method according to claim 5, characterized in that: The rotation speed of the third vacuum stirring in step S2 is 10000-12000 rpm.

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