A synthetic method for spraying special textured resins

Abstract

The application discloses a synthesis method of a spraying special-texture resin. The synthesis method of the spraying special-texture resin specifically comprises the following steps: one or more of 30-40 parts by mass of benzoic acid, salicylic acid and phenol is dissolved in 20-40 parts by mass of a solvent, 25-35 parts by mass of modified epoxy acrylate resin is added, and 5-15 parts by mass of an acrylate monomer is added and uniformly dispersed to obtain the spraying special-texture resin. The spraying special-texture resin obtained by the synthesis method has good texture effect, good storage stability and good adhesion to PC and PET.

Description

Technical fields:

[0001] This invention relates to the field of photocuring technology, and more specifically to a method for synthesizing a resin for spraying special textures. Background technology:

[0002] Over the past decade or so, UV-curable coatings and inks have experienced rapid growth due to their environmental and energy-saving advantages. However, with increasing demand for personalized product surface finishes, the need for coatings or varnishes with special textures is growing. The unique textures of coatings or varnishes are often inseparable from special base materials or additives, but current solutions involve complex application processes and high costs. Due to their complex composition and short shelf life, they are prone to problems such as layering and precipitation. Furthermore, the texture quality is easily affected by batch instability, making it difficult to achieve uniform and stable textures. Summary of the Invention:

[0003] This invention solves the problems existing in the prior art and provides a method for synthesizing a special textured resin for spraying. The special textured resin obtained by the synthesis method proposed in this invention has excellent texture production effect, good storage stability, low cost, and simple construction method.

[0004] The first objective of this invention is to provide a special textured resin for spraying, which is prepared from the following raw materials: 30-40 parts by mass of one or more of benzoic acid, salicylic acid and phenol, 25-35 parts by mass of modified epoxy acrylate resin, 5-15 parts by mass of acrylate monomer and 20-40 parts by mass of solvent.

[0005] The second objective of this invention is to provide a method for synthesizing a special textured resin for spraying, specifically comprising the following steps: dissolving 30-40 parts by weight of one or more of benzoic acid, salicylic acid and phenol in 20-40 parts by weight of a solvent, adding 25-35 parts by weight of a modified epoxy acrylate resin, and then adding 5-15 parts by weight of acrylate monomer and dispersing evenly to obtain a special textured resin for spraying.

[0006] Preferably, the solvent is selected from one of ethanol, isopropanol, ethyl acetate, butyl acetate, and ethylene glycol ethyl ether acetate.

[0007] Preferably, the modified epoxy acrylate resin is selected from one of the grades 700, 7182 and 7152 produced by Zhaoqing Baojun Chemical Co., Ltd.

[0008] Preferably, the acrylate monomer is selected from one or more of trimethylolpropane triacrylate, pentaerythritol triacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, 1,6-hexanediol diacrylate, and tripropylene glycol diacrylate.

[0009] A third objective of this invention is to provide the application of the aforementioned special textured spray resin in the field of photocuring.

[0010] The fourth objective of this invention is to provide a curing process for the aforementioned special textured resin, comprising the following steps: adding the special textured resin to a photoinitiator and dispersing it evenly, then spraying it onto a substrate; after the solvent evaporates, a regular texture appears on the substrate, at 365 nm (energy 150-300 mJ / cm). 2 The pattern is cured under ultraviolet light to obtain a fixed pattern with a special texture.

[0011] Preferably, the mass ratio of the special textured resin to the photoinitiator is 100:0.5-3.0.

[0012] Preferably, the photoinitiator is selected from one of photoinitiator TPO, photoinitiator 184, photoinitiator 1173, and photoinitiator 907.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This invention uses one or more of benzoic acid, salicylic acid and phenol, epoxy acrylate and acrylate monomer as raw materials, which is much cheaper than the special texture agents and base materials used in current special texture coatings or varnishes, and the texture is stable.

[0015] 2. The method for synthesizing the special textured resin proposed in this invention involves dispersing the raw materials evenly at room temperature.

[0016] 3. The curing process of the special textured resin proposed in this invention only requires the addition of a suitable photoinitiator. Stable textures can be obtained through two steps: volatilization and light irradiation. This curing process is simpler and easier to control than the processes currently on the market.

[0017] 4. The special textured resin proposed in this invention has good adhesion to PC and PET substrates, with an adhesion of 4B or higher. Attached image description:

[0018] Figure 1 This is the pattern obtained in Example 1 after curing the sprayed special textured resin;

[0019] Figure 2 This is the pattern obtained in Example 2 after curing the sprayed special textured resin;

[0020] Figure 3 This is the pattern obtained in Example 3 after curing the sprayed special textured resin;

[0021] Figure 4 This is the pattern obtained in Example 4 after curing the sprayed special textured resin;

[0022] Figure 5 This is the pattern obtained in Example 5 after curing the special textured resin applied by spraying;

[0023] Figure 6 This is the pattern obtained in Example 6 after curing the special textured resin applied by spraying. Detailed implementation method:

[0024] The following embodiments are further illustrations of the present invention, but not limitations thereof.

[0025] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of the invention. Unless otherwise specified, the experimental materials and reagents used herein are commercially available products conventional in this field. The modified epoxy acrylate resin proposed in this invention was purchased from Zhaoqing Baojun Chemical Co., Ltd., with product numbers 700, 7182, or 7152.

[0026] Example 1

[0027] 30 parts by weight of phenol were dissolved in 20 parts by weight of ethanol at room temperature by stirring. Then, 35 parts by weight of modified epoxy acrylate with brand name 700 produced by Zhaoqing Baojun Chemical Co., Ltd. and 15 parts by weight of trimethylolpropane triacrylate were added and dispersed evenly to obtain a special textured resin for spraying.

[0028] The special textured resin obtained above was added to the photoinitiator TPO, dispersed evenly, and then sprayed onto a PC substrate. The mass ratio of the special textured resin to the photoinitiator TPO was 100:3. After the solvent ethanol evaporated, recrystallization occurred on the substrate, resulting in a regular texture. Under 365nm ultraviolet light (energy 150mJ / cm²), the texture was observed. 2 Curing under irradiation fixes the special textured patterns, such as... Figure 1 As shown.

[0029] Example 2

[0030] 35 parts by weight of phenol were dissolved in 25 parts by weight of ethanol at room temperature by stirring. Then, 30 parts by weight of modified epoxy acrylate with brand name 700 produced by Zhaoqing Baojun Chemical Co., Ltd. and 10 parts by weight of pentaerythritol triacrylate were added and dispersed evenly to obtain a special textured resin for spraying.

[0031] The above-obtained special textured resin was added to photoinitiator 184, dispersed evenly, and then sprayed onto a PET substrate. The mass ratio of the special textured resin to photoinitiator 184 was 100:1. After the ethanol evaporated, recrystallization occurred on the substrate, resulting in a regular texture. Under 365nm ultraviolet light (energy 250mJ / cm²), the texture was observed.2 Curing under irradiation fixes the special textured patterns, such as... Figure 2 As shown.

[0032] Example 3

[0033] 40 parts by weight of benzoic acid were dissolved in 30 parts by weight of ethyl acetate at room temperature by stirring. Then, 25 parts by weight of modified epoxy acrylate with brand name 7182 produced by Zhaoqing Baojun Chemical Co., Ltd. and 5 parts by weight of dipentaerythritol pentaacrylate were added and dispersed evenly to obtain a special textured resin for spraying.

[0034] The above-obtained special textured resin was added to the photoinitiator TPO, dispersed evenly, and then sprayed onto a PC substrate. The mass ratio of the special textured resin to the photoinitiator TPO was 100:0.5. After the ethyl acetate evaporated, recrystallization occurred on the substrate, resulting in a regular texture. Under 365nm ultraviolet light (energy 300mJ / cm²), the texture was observed. 2 Curing under irradiation fixes the special textured patterns, such as... Figure 3 As shown.

[0035] Example 4

[0036] 35 parts by weight of benzoic acid were dissolved in 25 parts by weight of butyl acetate at room temperature by stirring. Then, 30 parts by weight of modified epoxy acrylate with brand name 7182 produced by Zhaoqing Baojun Chemical Co., Ltd. and 10 parts by weight of dipentaerythritol hexaacrylate were added and dispersed evenly to obtain a special textured resin for spraying.

[0037] The above-obtained special textured resin was added to photoinitiator 1173, along with 1 part by weight of pink pigment. The mixture was then dispersed evenly and sprayed onto a PET substrate. The mass ratio of the special textured resin to photoinitiator 1173 was 100:1. After the butyl acetate evaporated, recrystallization occurred on the substrate, resulting in a regular texture. Under 365nm ultraviolet light (energy 300mJ / cm²), the texture was successfully applied. 2 Curing under irradiation fixes the special textured patterns, such as... Figure 4 As shown.

[0038] Example 5

[0039] 30 parts by weight of phenol were dissolved in 40 parts by weight of ethylene glycol ethyl ether acetate under stirring at room temperature. Then, 25 parts by weight of modified epoxy acrylate with brand name 7152 produced by Zhaoqing Baojun Chemical Co., Ltd. and 5 parts by weight of 1,6-hexanediol diacrylate were added and dispersed evenly to obtain a special textured resin for spraying.

[0040] The above-obtained special textured resin was added to photoinitiator 907, dispersed evenly, and then sprayed onto a PC substrate. The mass ratio of the special textured resin to photoinitiator 1173 was 100:2. After the ethylene glycol ethyl ether acetate evaporated, regular textures appeared on the substrate through recrystallization. Under 365nm ultraviolet light (energy 200mJ / cm²), the textures were visible. 2 Curing under irradiation fixes the special textured patterns, such as... Figure 5 As shown.

[0041] Example 6

[0042] 35 parts by weight of phenol were dissolved in 25 parts by weight of isopropanol at room temperature by stirring. Then, 30 parts by weight of modified epoxy acrylate with brand name 7152 produced by Zhaoqing Baojun Chemical Co., Ltd. and 10 parts by weight of tripropylene glycol diacrylate were added and dispersed evenly to obtain a special textured resin for spraying.

[0043] The above-obtained special textured resin was added to photoinitiator 184, dispersed evenly, and then sprayed onto a PET substrate. The mass ratio of the special textured resin to photoinitiator 184 was 100:3. After the isopropanol evaporated, regular textures appeared on the substrate through recrystallization. Under 365nm ultraviolet light (energy 150mJ / cm²), the textures were visible. 2 Curing under irradiation fixes the special textured patterns, such as... Figure 6 As shown (sprayed onto a bottle-shaped PET substrate). Comparing the texture effects, benzoic acid produces a finer texture, phenol a medium texture, and salicylic acid a coarser texture. Different colors can be added to create different patterns to meet various needs.

[0044] The resin obtained above was sprayed onto PC and PET substrates according to the paint film formulations listed in each embodiment. After the solvent evaporated, the adhesion data was tested after UV curing, as shown in Table 1.

[0045] Table 1 Adhesion data for examples 1-6

[0046] Group substrate (PC) adhesion PET substrate adhesion Example 1 5B 4B Example 2 5B 4B Example 3 5B 4B Example 4 5B 4B Example 5 5B 4B Example 6 5B 4B

[0047] The above description of the embodiments is only for the purpose of helping to understand the technical solution and core idea of ​​the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. The application of spray-coated special textured resin in the field of photocuring, characterized in that, The special textured resin for spraying is prepared from the following raw materials: by mass, 30-40 parts of one or more of benzoic acid and phenol, 25-35 parts of modified epoxy acrylate resin, 5-15 parts of acrylate monomer and 20-40 parts of solvent. The curing process for spraying a special textured resin includes the following steps: The special textured resin is added to a photoinitiator and dispersed evenly, then sprayed onto a substrate. After the solvent evaporates, a regular texture appears on the substrate. (The curing process is described in the original text, but the translation is incomplete.) Cured under ultraviolet light at nm, a pattern with a special texture is obtained after fixation. The mass ratio of the special textured resin to the photoinitiator is 100:0.5-3.

0. The solvent is selected from ethanol, isopropanol, ethyl acetate, butyl acetate, and ethylene glycol ethyl ether acetate. The modified epoxy acrylate resin is selected from brands 700, 7182, and 7152 produced by Zhaoqing Baojun Chemical Co., Ltd. The acrylate monomer is selected from one or more of trimethylolpropane triacrylate, pentaerythritol triacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, 1,6-hexanediol diacrylate, and tripropylene glycol diacrylate. The photoinitiator is selected from photoinitiator TPO, photoinitiator 184, photoinitiator 1173, and photoinitiator 907.

2. The application according to claim 1, characterized in that, The method for synthesizing the special textured resin for spraying specifically includes the following steps: dissolving 30-40 parts by weight of one or more of benzoic acid and phenol in 20-40 parts by weight of solvent, adding 25-35 parts by weight of modified epoxy acrylate resin, and then adding 5-15 parts by weight of acrylate monomer and dispersing evenly to obtain the special textured resin for spraying.

Images