阅读说明：本技术 Led冷光固化涂履涂层材料制备及其应用方法 (Preparation and application method of LED cold light curing coating material ) 是由 罗湘南 邱木生 于 2021-07-28 设计创作，主要内容包括：本发明公开了LED冷光固化涂履涂层材料制备及其应用方法,所述LED冷光源固化涂履在PET上的涂层材料的原料为:聚酯丙烯酸脂树脂：20-30％、聚酯丙烯酸树脂：25-35％、丙烯酸羟乙酯：15-18％、异冰片荃丙烯酸脂：18-20％、环氧丙烯酸脂树脂：20％、光敏剂：6-8％、助剂：1-2％、填料：5-10％。该LED冷光固化涂履涂层材料制备及其应用方法,将LED冷光源固化涂层材料涂履在硬化亚克力表面,通过冷光源固化设备进行光照设时间8-10秒,大大节约了固化的时间,该LED光固化防指纹、耐污染涂料环保节能,相比较传统的热固化涂料能有效节能95％以上,相比较UV光固化涂料节能80％以上并较少UV灯的汞排放,且操作简单配合专用的冷光源固化设备能实现自动化。(The invention discloses a preparation method and an application method of an LED cold light curing coating material, wherein the coating material coated on PET by curing an LED cold light source comprises the following raw materials: 20-30%, polyester acrylic resin: 25-35%, hydroxyethyl acrylate: 15-18%, isobornyl acrylate: 18-20%, epoxy acrylate resin: 20%, photosensitizer: 6-8% and auxiliary agent: 1-2% and a filler: 5 to 10 percent. The LED cold light curing coating material is coated on the hardened acrylic surface, the illumination time is set to be 8-10 seconds through cold light source curing equipment, the curing time is greatly saved, the LED light curing anti-fingerprint and pollution-resistant coating is environment-friendly and energy-saving, compared with the traditional thermosetting coating, the energy can be effectively saved by more than 95%, compared with the UV light curing coating, the energy can be saved by more than 80%, the mercury emission of UV lamps is reduced, the operation is simple, and the automation can be realized by matching with the special cold light source curing equipment.)

The preparation method and the application method of the LED cold light curing coating material are characterized in that the coating material cured and coated on the PET by the LED cold light source is prepared from the following raw materials: 20-30%, polyester acrylic resin: 25-35%, hydroxyethyl acrylate: 15-18%, isobornyl acrylate: 18-20%, epoxy acrylate resin: 20%, photosensitizer: 6-8% and auxiliary agent: 1-2% and a filler: 5 to 10 percent.

Step 1, weighing a proper amount of polyester acrylate resin in a proportion of 20-30% of the total amount, adding the polyester acrylate resin in a proportion of 5-35% of the total amount, and putting the polyester acrylate resin and the polyester acrylate resin into a stirring tank for stirring and cooling for later use;

step 2, weighing a proper amount of the auxiliary agent and the filler according to the proportion of 1-2% and 5-10% of the total amount, respectively, adding the auxiliary agent and the filler into a stirring tank, setting the rotating speed of a rotating motor to be 25-35rpm, setting the stirring speed of the motor to be 700-900rpm, and stirring for 15-20 minutes;

step 3, weighing a proper amount of polyester acrylic resin, adding the polyester acrylic resin into a stirring tank according to the proportion of 25-35% of the total amount, adding the isobornyl acrylate into the stirring tank according to the proportion of 18-20% of the total amount, setting the rotating speed of a rotating motor to be 20-30rpm, setting the stirring speed of the motor to be 550-650rpm, and stirring for 5-8 minutes;

step 4, weighing a proper amount of hydroxyethyl acrylate, adding the hydroxyethyl acrylate into a stirring tank according to the proportion of 25-35% of the total amount, setting the rotating speed of a rotating motor to be 20-30rpm, setting the stirring speed of the motor to be 550-650rpm, and stirring for 3-5 minutes, and adding the photosensitizer according to the proportion of 6-8% of the total amount in the stirring process;

step 5, after the raw materials are fully stirred, pouring the raw materials in the stirring tank into a mould, uniformly coating, and then turning on an LED ultraviolet lamp for light fixation treatment

And 6, after the LED ultraviolet lamp finishes the light fixation treatment, clamping and fixing the die through the control of the stepping motor and the clamping mechanism, and conveying the die out through the conveying mechanism to finish the manufacture of the coating material coated on the hardened acrylic through curing of the LED cold light source.

2. The method for preparing the LED cold light curing coating material according to claim 1, wherein: the photosensitizer mainly comprises one of aromatic diazonium salt (Ar2N 2X), diaryl iodine compound (Ar2IX) and triaryl sulfur compound.

3. The method for preparing the coating material coated on the hardened acrylic by LED cold light curing according to claim 1, wherein the coating material comprises the following components: and 2, the auxiliary agent and the filler in the step 2 need to be slowly added into the stirring barrel for stirring when the stirring barrel is used for stirring.

4. The method for preparing the coating material coated on the hardened acrylic by LED cold light curing according to claim 1, wherein the coating material comprises the following components: the stirring barrel needs to be preheated in the stirring process, and the preheating temperature is within 100-120 ℃.

5. The preparation and application method of the LED cold light curing coating material according to claim 1, wherein the coating material comprises the following components: the auxiliary agent mainly comprises a leveling agent and a dispersing agent.

An application method of a coating material coated on PET by LED cold light source curing is characterized in that: the LED cold light source cured coating material is coated on the surface of the hardened acrylic and is irradiated by cold light source curing equipment for 8-10 seconds, so that the LED cold light source cured coating material is melted and leveled on the surface of the hardened acrylic.

7. The preparation and application method of the LED cold light curing coating material according to claim 6, wherein the coating material comprises the following components: the light curing energy is 400-700 joules, and the distance between the LED ultraviolet lamp and the mold is controlled within 40cm when the mold is irradiated by the LED ultraviolet lamp.

Technical Field

The invention relates to the technical field of LED cold light source curing coatings, in particular to a preparation method and an application method of an LED cold light curing coating material.

Background

The LED photocuring ink is photocured by adopting a cold light source, and is low in smell, environment-friendly and non-toxic. The coating film has uniform fineness and good leveling property, has excellent adhesion to a substrate after being cured, and has high hardness, luster, good water resistance and chemical resistance;

the LED photocuring fingerprint-resistant pollution-resistant coating is environment-friendly and energy-saving and can reach various performances of the traditional coating. The traditional coating is generally cured by heat or UV light, and the energy consumption is high. Compared with the traditional thermosetting coating, the LED cold light source curing coating can effectively save energy by more than 95 percent, and compared with the UV light curing coating, the LED cold light source curing coating can save energy by more than 80 percent and has less mercury emission of a UV lamp.

Disclosure of Invention

The invention aims to provide a preparation method and an application method of an LED cold light curing coating material, so as to solve the problems of high energy consumption and mercury emission of a UV lamp in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the preparation method and the application method of the LED cold light curing coating material comprise the following steps of: 20-30%, polyester acrylic resin: 25-35%, hydroxyethyl acrylate: 15-18%, isobornyl acrylate: 18-20%, epoxy acrylate resin: 20%, photosensitizer: 6-8% and auxiliary agent: 1-2% and a filler: 5 to 10 percent.

Step 1, weighing a proper amount of polyester acrylate resin in a proportion of 20-30% of the total amount, adding the polyester acrylate resin in a proportion of 5-35% of the total amount, and putting the polyester acrylate resin and the polyester acrylate resin into a stirring tank for stirring and cooling for later use;

step 2, weighing a proper amount of the auxiliary agent and the filler according to the proportion of 1-2% and 5-10% of the total amount, respectively, adding the auxiliary agent and the filler into a stirring tank, setting the rotating speed of a rotating motor to be 25-35rpm, setting the stirring speed of the motor to be 700-900rpm, and stirring for 15-20 minutes;

step 3, weighing a proper amount of polyester acrylic resin, adding the polyester acrylic resin into a stirring tank according to the proportion of 25-35% of the total amount, adding the isobornyl acrylate into the stirring tank according to the proportion of 18-20% of the total amount, setting the rotating speed of a rotating motor to be 20-30rpm, setting the stirring speed of the motor to be 550-650rpm, and stirring for 5-8 minutes;

step 4, weighing a proper amount of hydroxyethyl acrylate, adding the hydroxyethyl acrylate into a stirring tank according to the proportion of 25-35% of the total amount, setting the rotating speed of a rotating motor to be 20-30rpm, setting the stirring speed of the motor to be 550-650rpm, and stirring for 3-5 minutes, and adding the photosensitizer according to the proportion of 6-8% of the total amount in the stirring process;

step 5, after the raw materials are fully stirred, pouring the raw materials in the stirring tank into a mould, and turning on an LED ultraviolet lamp to perform light fixation treatment after the raw materials are uniformly coated;

step 6, after the LED ultraviolet lamp finishes the light fixation treatment, clamping and fixing the die through the stepping motor and the clamping mechanism, and conveying the die out through the conveying mechanism to finish the manufacture of the coating material solidified and coated on the hardened acrylic by the LED cold light source;

the application method of the coating material coated on the PET through the LED cold light source curing comprises the steps of coating the LED cold light source curing coating material on the surface of the hardened acrylic, and irradiating the hardened acrylic for 8-10 seconds through cold light source curing equipment to enable the LED cold light source curing coating material to be melted and leveled on the surface of the hardened acrylic.

Preferably, the photosensitizer consists essentially of one of the three classes of aromatic diazonium salts (Ar2N 2X), diaryliodonium compounds (Ar2IX), and triarylsulfur compounds.

Preferably, the auxiliary agent and the filler in step 2 need to be slowly added into the stirring barrel for stirring when the stirring barrel is used for stirring.

Preferably, the stirring barrel needs to be preheated in the stirring process, and the preheating temperature is within 100-120 ℃.

Preferably, the auxiliary agent mainly comprises a leveling agent and a dispersing agent.

Preferably, the light curing energy is 400-700 joules, and the distance between the LED ultraviolet lamp and the mold is controlled within 40cm when the mold is irradiated by the LED ultraviolet lamp.

Compared with the prior art, the invention has the beneficial effects that: the LED cold light source is cured and coated on the coating material of PET,

1. the LED cold light source cured coating material is coated on the hardened acrylic surface, the illumination is carried out through the cold light source curing equipment for 8-10 seconds, the melting leveling of the LED cold light source cured coating material on the hardened acrylic surface is enabled to greatly save the curing time, the LED photocuring anti-fingerprint anti-pollution coating material can achieve various performances of the traditional coating while being environment-friendly and energy-saving, the traditional coating is generally cured by heat or UV light, the energy consumption is high, compared with the traditional thermosetting coating material, the LED cold light source cured coating material can effectively save energy by more than 95 percent, compared with the UV photocuring coating material, the energy is saved by more than 80 percent, the mercury emission of a UV lamp is reduced, the LED photocuring coating material can achieve zero VOC emission, and the operation is simple and the automation can be realized by matching with the special cold light source curing equipment.

Drawings

FIG. 1 is a schematic view of the manufacturing process of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the preparation and application method of the LED cold light curing coating material comprises the following steps: 20-30%, polyester acrylic resin: 25-35%, hydroxyethyl acrylate: 15-18%, isobornyl acrylate: 18-20%, epoxy acrylate resin: 20%, photosensitizer: 6-8% and auxiliary agent: 1-2% and a filler: 5 to 10 percent.

Step 1, weighing a proper amount of polyester acrylate resin in a proportion of 20-30% of the total amount, adding the polyester acrylate resin in a proportion of 5-35% of the total amount, and putting the polyester acrylate resin and the polyester acrylate resin into a stirring tank for stirring and cooling for later use;

step 2, weighing a proper amount of the auxiliary agent and the filler according to the proportion of 1-2% and 5-10% of the total amount, respectively, adding the auxiliary agent and the filler into a stirring tank, setting the rotating speed of a rotating motor to be 25-35rpm, setting the stirring speed of the motor to be 700-900rpm, and stirring for 15-20 minutes;

step 3, weighing a proper amount of polyester acrylic resin, adding the polyester acrylic resin into a stirring tank according to the proportion of 25-35% of the total amount, adding the isobornyl acrylate into the stirring tank according to the proportion of 18-20% of the total amount, setting the rotating speed of a rotating motor to be 20-30rpm, setting the stirring speed of the motor to be 550-650rpm, and stirring for 5-8 minutes;

step 4, weighing a proper amount of hydroxyethyl acrylate, adding the hydroxyethyl acrylate into a stirring tank according to the proportion of 25-35% of the total amount, setting the rotating speed of a rotating motor to be 20-30rpm, setting the stirring speed of the motor to be 550-650rpm, and stirring for 3-5 minutes, and adding the photosensitizer according to the proportion of 6-8% of the total amount in the stirring process;

step 5, after the raw materials are fully stirred, pouring the raw materials in the stirring tank into a mould, and turning on an LED ultraviolet lamp to perform light fixation treatment after the raw materials are uniformly coated;

step 6, after the LED ultraviolet lamp finishes the light fixation treatment, clamping and fixing the die through the stepping motor and the clamping mechanism, and conveying the die out through the conveying mechanism to finish the manufacture of the coating material solidified and coated on the hardened acrylic by the LED cold light source;

the photosensitizer is mainly composed of one of aromatic diazonium salt (Ar2N 2X), diaryl iodine compound (Ar2IX) and triaryl sulfur compound, the cationic polymerization reaction initiated by the photosensitizer is slightly inhibited by oxygen, and the photosensitizer can be rapidly and completely polymerized in the air; can be cured at room temperature and can be further cured after being released from the light radiation.

The auxiliary agent and the filler in the step 2 need to be slowly added into the stirring barrel for stirring when the stirring barrel is used for stirring, so that the auxiliary agent and the filler can be fully fused in the raw materials in the stirring barrel.

The stirring barrel needs to be preheated in the stirring process, the preheating temperature is within 100-120 ℃, and raw materials in the stirring barrel can be fully fused together at high temperature.

The auxiliary agent mainly comprises a flatting agent and a dispersing agent, so that the coating is promoted to form a flat, smooth and uniform coating film in the drying film-forming process. Can effectively reduce the surface tension of the finishing liquid and improve the leveling property and uniformity of the finishing liquid.

The application method of the coating material coated on the PET by the LED cold light source curing comprises the steps of coating the coating material coated on the hardened acrylic surface by the LED cold light source curing equipment, and setting the illumination time for 8-10 seconds by the cold light source curing equipment, so that the LED cold light source cured coating material is melted and leveled on the hardened acrylic surface, and the curing time is greatly saved;

the light curing energy is 400-700 joules, the distance between the LED ultraviolet lamp and the mold is controlled within 40cm when the mold is irradiated, so that the LED ultraviolet lamp is convenient to help the coating to be better molded, and the LED cold light source curing coating material is irradiated perpendicularly to the surface of the coating;

the working principle is as follows: according to the figure 1, polyester acrylate resin, polyester acrylic resin, hydroxyethyl acrylate, isobornyl acrylate, epoxy acrylate resin, a photosensitizer, an auxiliary agent and a filler are mixed and stirred to prepare an LED cold light source cured coating material, the LED cold light source cured coating material is coated on the surface of hardened acrylic, and the light source curing equipment is used for irradiating for 8-10 seconds, so that the LED cold light source cured coating material is melted and leveled on the surface of the hardened acrylic, the curing time is greatly saved, and the LED light-cured fingerprint-resistant and pollution-resistant coating is environment-friendly and energy-saving and can reach various performances of the traditional coating. The traditional coating is generally cured by heat or UV light, and the energy consumption is high. Compared with the traditional thermosetting coating, the LED cold light source curing coating can effectively save energy by more than 95 percent, and compared with the UV light curing coating, the LED cold light source curing coating can save energy by more than 80 percent and has less mercury emission of a UV lamp. The LED photocureable coating can achieve zero VOC emission, and is simple to operate and can realize automation by matching with special cold light source curing equipment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.