Organic silicon resin and preparation method thereof

Abstract

The invention discloses an organic silicon resin and a preparation method thereof, and relates to the field of organic silicon resin preparation, the first step is that methylsilane is placed in a stirring barrel, a catalyst is added, a prepolymerization reaction is carried out through catalysis of the catalyst to form an oligomer, after the prepolymerization reaction is completed, a filler and a cross-linking agent are added into the oligomer, and a mixture is obtained; the preparation method comprises the following steps: carrying out cross-linking and curing on a high-energy ultrasonic amplitude-change pole, and carrying out defoaming treatment after cross-linking and curing to remove bubbles in a cross-linked and cured material so as to obtain the organic silicon resin. In actual operation, the arranged ultrasonic generator can transmit ultrasonic waves to the high-energy ultrasonic amplitude-change pole, and the high-energy ultrasonic amplitude-change pole is in contact with the material; compared with the prior art, the reaction kettle has the advantages that sufficient and uniform mixing of various materials in the kettle body can be effectively promoted, segregation of a certain monomer material is avoided, the reaction efficiency is greatly improved, meanwhile, ultrasonic waves can enable high-frequency continuous vibration to be generated among the materials, bubbles in the materials are discharged or broken, and the organic silicon resin structure is tighter.

Description

Technical Field

[0001] The invention relates to the field of preparation of organic silicone resins, and in particular to an organic silicone resin and a preparation method thereof. Background Art

[0002] Organic silicon, or organic silicon compound, refers to a compound containing Si-C bond and at least one organic group directly connected to silicon atom. Compounds that connect organic groups to silicon atoms through oxygen, sulfur, nitrogen, etc. are also usually regarded as organic silicon compounds. Among them, polysiloxanes composed of silicon oxygen bond (-Si-O-Si-) as the skeleton are the most numerous, most studied and most widely used type of organic silicon compounds, accounting for more than 90% of the total amount. Due to the unique structure of organic silicon, it combines the properties of inorganic materials and organic materials, and has basic properties such as low surface tension, small viscosity-temperature coefficient, high compressibility, high gas permeability, etc., and has excellent properties such as high and low temperature resistance, electrical insulation, oxidation stability, weather resistance, flame retardancy, hydrophobicity, corrosion resistance, non-toxicity and tastelessness, and physiological inertness. It is widely used in aerospace, electronics and electrical, construction, transportation, chemical, textile, food, light industry, medical and other industries.

[0003] After the existing silicone resin is cross-linked and cured, bubbles will appear in the polymer. The number of bubbles will affect the structural tightness of the subsequent silicone resin finished product. If a defoaming agent is used, it is necessary to wait for the reaction time, which is inefficient.

[0004] Therefore, it is necessary to propose an organosilicon resin and a preparation method thereof to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a silicone resin and a preparation method thereof, so as to solve the problem that bubbles will appear in the polymer after cross-linking and curing of the existing silicone resin, and the number of bubbles will affect the structural tightness of the subsequent silicone resin finished product. If a defoaming agent is used, it is necessary to wait for the reaction time, which is inefficient.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for preparing an organosilicon resin, comprising the following steps:

[0007] The first step is to mix concentrated hydrochloric acid and pure water and add them into the reactor;

[0008] Step 2: Add toluene and ethanol to the reactor separately and leave for 15 minutes;

[0009] Step 3: Add hexamethyldisiloxane dropwise into the reaction kettle again to complete mixing;

[0010] Step 4: Tetraethyl silicate, methyltrimethoxysilane and ethanol are mixed and added dropwise to the reaction kettle, mixed with other materials, and the materials are degassed using an ultrasonic mixer to remove bubbles in the mixture to form an organosilicon resin;

[0011] Step 5: Cutting and polishing the prepared silicone resin to form a finished silicone resin product.

[0012] The mass addition ratios of concentrated hydrochloric acid, pure water, toluene, ethanol, hexamethyldisiloxane, tetraethyl silicate, methyltrimethoxysilane and ethanol are 10%-12%, 13%-15%, 15%-17%, 8%-10%, 2%-4%, 8%-10%, 28%-30% and 8%-10% respectively.

[0013] The defoaming treatment includes adding pigment powder and defoaming agent in an ultrasonic mixing kettle and uniformly mixing them;

[0014] The ultrasonic mixing kettle comprises a kettle body, an ultrasonic generator is fixed on the outside of the kettle body, a first fixing ring is fixed on the inside of the kettle body, an electric push rod is fixed on the bottom end of the first fixing ring, a second fixing ring is fixed on the bottom end of the electric push rod, high-energy ultrasonic amplitude rods are fixed inside the first fixing ring and the second fixing ring, an ultrasonic generator is fixed on the outside of the kettle body, and the ultrasonic generator is connected to the high-energy ultrasonic amplitude rod.

[0015] Preferably, the first fixing ring and the second fixing ring are distributed along the height direction of the kettle body, and a spacing is left between the first fixing ring and the second fixing ring. A cleaning brush is fixed to the outer side of the second fixing ring, and the outer side of the cleaning brush is attached to the inner wall of the kettle body.

[0016] Preferably, a conical funnel is provided at the bottom end of the inner part of the kettle body, an output pipe is provided at the bottom end of the kettle body, the bottom end of the conical funnel is connected to the output pipe through a pipeline, a gap is left between the bottom end of the conical funnel and the bottom end of the kettle body, an electric heating pipe is provided in the gap, an electric heater is provided on the outside of the kettle body, and the electric heater is connected to the electric heating pipe.

[0017] Preferably, a motor is fixed in the middle of the top end of the kettle body, a driving shaft at the bottom end of the motor is connected to a stirring shaft, the stirring shaft extends into the interior of the kettle body, and a stirring plate is arranged on the outside of the stirring shaft.

[0018] Preferably, the conical tip of the conical funnel is arranged downward, the top of the inside of the conical funnel is fixedly connected to a tripod, the bottom end of the conical funnel is provided with a through opening for material to pass through, a gap is left between the bottom end of the tripod and the through opening, a sweeping plate is fixed to the bottom end of the outer side of the stirring shaft, and the bottom end of the sweeping plate is attached to the inner side of the conical funnel.

[0019] Preferably, a feeding port is provided on one side of the top end of the kettle body, an end cover is provided on the feeding port, and the feeding port is communicated with the interior of the kettle body.

[0020] Preferably, a thermometer is provided on one side of the feed port, and the thermometer extends into the interior of the kettle body.

[0021] Preferably, a plurality of high-energy ultrasonic amplitude transformers are provided, and the plurality of high-energy ultrasonic amplitude transformers are distributed at equal distances around the centers of the corresponding first fixing ring and the second fixing ring.

[0022] Preferably, the stirring plates and the high-energy ultrasonic horn are arranged in staggered positions.

[0023] The invention also discloses an organic silicon resin which is prepared by using the preparation method.

[0024] The invention also discloses an application of an organic silicone resin. The organic silicone resin prepared by the organic silicone resin preparation method is applied in a low-temperature transfer process.

[0025] The present invention also discloses an application method of an organic silicone resin, which is applicable to the application of the organic silicone resin and comprises:

[0026] S1: Using silicone resin to make a protective coating, the protective coating includes an ink layer and a release layer;

[0027] The ink layer includes, by mass, 2% acrylic resin, 7% silicone resin, 3% wax powder, 14% carbon black, 1% dispersant and 73% solvent, wherein the dispersant is AKN2070 and the solvent is xylene;

[0028] The release layer includes, by mass, 90% wax powder, 5% silicone resin, 2% acrylic resin and 3% thermoplastic elastomer, wherein the thermoplastic elastomer is SEBS;

[0029] S2: Apply a layer of silicone coating on the back of the PET, PP, and PE films that require low-temperature transfer, apply a release layer on the front of the PET, PP, and PE films, and then apply a layer of ink. Send the PET, PP, and PE films into the oven for drying and then reel them up.

[0030] Technical effects and advantages of the present invention:

[0031] 1. In the actual operation of the present invention, the ultrasonic generator can transmit ultrasonic waves to the high-energy ultrasonic horn, and the high-energy ultrasonic horn is in contact with the material, which can effectively promote the full and uniform mixing of the various materials in the kettle body, avoid the segregation of a certain monomer material, and greatly improve the reaction efficiency. At the same time, the ultrasonic wave can cause high-frequency continuous vibration between the materials, discharge or burst the bubbles in the materials, and make the silicone resin structure more compact.

[0032] 2. In addition, when the electric push rod is started, it can drive the second fixed ring to extend downward, thereby extending the distance between the second fixed ring and the first fixed ring, so that the second fixed ring and the first fixed ring can vibrate materials in different height areas, speeding up the mixing and bubble discharge speed. At the same time, when the second fixed ring descends, the cleaning brush on the outside of the second fixed ring will contact the inner wall of the kettle body, thereby scraping off the material adhering to the inner wall.

[0033] 3. When there is less material inside the kettle, the second fixed ring can be lowered to adapt to the depth of material accumulation, mix and discharge bubbles. Furthermore, when the material is discharged, ultrasonic waves can speed up the discharge of the material and prevent the material from adhering to the inner wall of the kettle.

[0034] 4. In the actual operation of the present invention, after the motor is started, it can drive the sweeping plate and the stirring plate to rotate, thereby mixing and stirring the materials, accelerating the discharge of bubbles and the mixing speed between materials. At the same time, the sweeping plate can reduce the phenomenon of material adhesion on the conical funnel, making it easier to discharge.

[0035] 5. The ultrasonic mixer shakes the cross-linked and cured materials and adds pigment powder and defoamer to mix them evenly. The structure of the silicone resin after defoaming treatment is denser, which can improve its physical properties. At the same time, different pigment powders can be used as needed to make the finished silicone resin have different colors. The vibration effect causes collisions between the materials, and the bubbles can be discharged through the collision. At the same time, through the oscillation of ultrasound, the materials can be fully mixed with the pigment powder and defoamer added later, thereby improving the uniformity between multiple materials. The addition of defoamer and the use of ultrasound can speed up the discharge of bubbles, reduce reaction time, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The figure is a schematic diagram of the steps of the method for preparing the organosilicon resin of the present invention.

[0037] Figure 2 It is a structural schematic diagram of the kettle body of the present invention.

[0038] Figure 3 It is a schematic diagram of the internal structure of the kettle body of the present invention.

[0039] Figure 4 For the present invention Figure 3 Enlarged schematic diagram at point A in the middle.

[0040] Figure 5 It is a schematic diagram of the structure of the second fixing ring and the cleaning brush of the present invention.

[0041] In the figure: 1. kettle body; 2. ultrasonic generator; 3. electric heater; 4. output pipe; 5. motor; 6. feed port; 7. thermometer; 8. end cover; 9. stirring shaft; 10. stirring plate; 11. conical funnel; 12. tripod; 13. sweeping plate; 14. electric heating tube; 15. first fixing ring; 16. high-energy ultrasonic amplitude transformer; 17. electric push rod; 18. second fixing ring; 19. cleaning brush; 20. through port. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clearly described in detail. 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] The present invention provides Figure 1 - Figure 5 A method for preparing an organosilicon resin is shown, comprising the following steps:

[0044] S1. First, mix concentrated hydrochloric acid and pure water and add them into the reactor;

[0045] S2, then add toluene and ethanol separately into the reactor and leave for 15 minutes;

[0046] S3, adding hexamethyldisiloxane dropwise into the reaction kettle again to complete mixing;

[0047] S4, tetraethyl silicate, methyltrimethoxysilane and ethanol are mixed and added dropwise to the reaction kettle, mixed with other materials, and the materials are degassed by using an ultrasonic mixing kettle to remove bubbles in the mixed materials to form an organosilicon resin;

[0048] S5, cutting and polishing the prepared silicone resin to form a finished silicone resin product, and the silicone resin can be processed as needed to make the silicone resin into a desired shape;

[0049] Example 1

[0050] The mass addition ratios of concentrated hydrochloric acid, pure water, toluene, ethanol, hexamethyldisiloxane, tetraethyl silicate, methyltrimethoxysilane and ethanol are 11%, 14%, 16%, 9%, 3%, 9%, 29% and 9%, respectively; and it should be noted that the addition time of all the materials added previously is controlled within about 3 hours.

[0051] Example 2

[0052] The mass addition ratios of concentrated hydrochloric acid, pure water, toluene, ethanol, hexamethyldisiloxane, tetraethyl silicate, methyltrimethoxysilane and ethanol are 10%, 15%, 18%, 8%, 3%, 9%, 28% and 9% respectively; and it should be noted that the addition time of all the materials added previously is controlled within 3.2 hours.

[0053] Example 3

[0054] The mass addition ratios of concentrated hydrochloric acid, pure water, toluene, ethanol, hexamethyldisiloxane, tetraethyl silicate, methyltrimethoxysilane and ethanol are 12%, 13%, 15%, 8%, 2%, 10%, 30% and 10%, respectively; and it should be noted that the addition time of all the materials added previously is controlled at about 3.1 hours.

[0055] The defoaming treatment includes adding pigment powder and defoaming agent in an ultrasonic mixing kettle and uniformly mixing them.

[0056] The degassing treatment includes an ultrasonic mixing kettle, which oscillates the cross-linked and cured material and adds pigment powder and defoaming agent to mix them evenly. The structure of the silicone resin after the degassing treatment is denser, which can improve its physical properties. At the same time, different pigment powders can be used as needed to make the finished silicone resin have different colors. The oscillation effect causes collisions between the materials, and the bubbles can be discharged through the collision. At the same time, through the oscillation effect of the ultrasonic wave, the material can be fully mixed with the pigment powder and defoaming agent added later, thereby improving the uniformity between the various materials. The addition of the defoaming agent and the use of ultrasonic waves can speed up the discharge of bubbles, reduce the reaction time, and improve production efficiency.

[0057] The invention also discloses an organic silicon resin which is prepared by using the preparation method.

[0058] The ultrasonic mixing kettle comprises a kettle body 1, an ultrasonic generator 2 is fixed on the outside of the kettle body 1, a first fixed ring 15 is fixed inside the kettle body 1, an electric push rod 17 is fixed to the bottom end of the first fixed ring 15, a second fixed ring 18 is fixed to the bottom end of the electric push rod 17, high-energy ultrasonic horn 16 is fixed inside the first fixed ring 15 and the second fixed ring 18, an ultrasonic generator 2 is fixed on the outside of the kettle body 1, the ultrasonic generator 2 and the high-energy ultrasonic horn 16 are connected, a feed port 6 is opened on one side of the top of the kettle body 1, an end cover 8 is provided on the feed port 6, the feed port 6 is connected to the inside of the kettle body 1, and a variety of materials to be mixed can be input from the feed port 6 into the inside of the kettle body 1 to complete the mixing and degassing process.

[0059] The first fixing ring 15 and the second fixing ring 18 are distributed along the height direction of the kettle body 1 , and a distance is left between the first fixing ring 15 and the second fixing ring 18 . A cleaning brush 19 is fixed to the outer side of the second fixing ring 18 , and the outer side of the cleaning brush 19 is attached to the inner wall of the kettle body 1 .

[0060] In the actual operation of the present invention, the ultrasonic generator 2 can transmit ultrasonic waves to the high-energy ultrasonic horn 16. The high-energy ultrasonic horn 16 is in contact with the material, which can effectively promote the full and uniform mixing of the various materials inside the kettle body 1, avoid the segregation of a certain monomer material, and greatly improve the reaction efficiency. At the same time, the ultrasonic wave can cause high-frequency continuous vibrations between the materials, discharge or burst the bubbles in the materials, and make the silicone resin structure more compact.

[0061] In addition, when the electric push rod 17 is started, the second fixing ring 18 can be driven to extend downward, thereby extending the distance between the second fixing ring 18 and the first fixing ring 15, so that the second fixing ring 18 and the first fixing ring 15 can vibrate materials in different height areas, speeding up the mixing and bubble discharge speed. At the same time, when the second fixing ring 18 descends, the cleaning brush 19 on the outside of the second fixing ring 18 will contact the inner wall of the kettle body 1, thereby scraping off the material adhering to the inner wall.

[0062] When the material inside the kettle body 1 is less, the second fixing ring 18 can be lowered to adapt to the depth of material accumulation, to mix and remove bubbles.

[0063] Furthermore, when the material is discharged, the ultrasonic wave can accelerate the discharge speed of the material and prevent the material from adhering to the inner wall of the kettle body 1.

[0064] A conical funnel 11 is arranged at the bottom end of the kettle body 1, and an output pipe 4 is arranged at the bottom end of the kettle body 1. The bottom end of the conical funnel 11 is connected to the output pipe 4 through a pipeline. A gap is left between the bottom end of the conical funnel 11 and the bottom end of the kettle body 1, and an electric heating pipe 14 is arranged in the gap. An electric heater 3 is arranged on the outside of the kettle body 1, and the electric heater 3 is connected to the electric heating pipe 14.

[0065] A motor 5 is fixed in the middle of the top of the kettle body 1 , and a driving shaft at the bottom of the motor 5 is connected to a stirring shaft 9 . The stirring shaft 9 extends into the interior of the kettle body 1 , and a stirring plate 10 is arranged on the outer side of the stirring shaft 9 .

[0066] The conical tip of the conical funnel 11 is set downward, and the top of the inside of the conical funnel 11 is fixedly connected to a tripod 12. The bottom end of the conical funnel 11 is provided with a through hole 20 for materials to pass through. A gap is left between the bottom end of the tripod 12 and the through hole 20. A sweeping plate 13 is fixed to the bottom end of the outer side of the stirring shaft 9, and the bottom end of the sweeping plate 13 is attached to the inner side of the conical funnel 11.

[0067] In the actual operation of the present invention, after the motor 5 is started, it can drive the sweeping plate 13 and the stirring plate 10 to rotate, thereby mixing and stirring the materials, accelerating the discharge of bubbles and the mixing speed between materials. At the same time, the sweeping plate 13 can reduce the phenomenon of material adhesion on the conical funnel 11, making it easier to discharge.

[0068] A thermometer 7 is provided on one side of the feeding port 6 . The thermometer 7 extends into the interior of the kettle body 1 , and can monitor the temperature inside the kettle body 1 in real time.

[0069] A plurality of high-energy ultrasonic horn rods 16 are provided, and the plurality of high-energy ultrasonic horn rods 16 are distributed at equal distances around the centers of the corresponding first fixing ring 15 and the second fixing ring 18 .

[0070] The stirring plates 10 and the high-energy ultrasonic horn 16 are arranged in a staggered manner.

[0071] The invention also discloses an application of an organic silicone resin. The organic silicone resin prepared by the organic silicone resin preparation method is applied in a low-temperature transfer process.

[0072] The present invention also discloses an application method of an organic silicone resin, which is applicable to the application of the organic silicone resin and comprises:

[0073] S1: Using silicone resin to make a protective coating, the protective coating includes an ink layer and a release layer;

[0074] The ink layer includes, by mass, 2% acrylic resin, 7% silicone resin, 3% wax powder, 14% carbon black, 1% dispersant and 73% solvent, wherein the dispersant is AKN2070 and the solvent is xylene;

[0075] The release layer includes, by mass, 90% wax powder, 5% silicone resin, 2% acrylic resin and 3% thermoplastic elastomer, wherein the thermoplastic elastomer is SEBS;

[0076] S2: Use an ink printer to perform low-temperature transfer on PET, PP, and PE films. Apply a layer of silicone coating on the back of the PET, PP, and PE films that require low-temperature transfer. The silicone coating protects the printer head of the ink printer. Apply a release layer on the front of the PET, PP, and PE films. The release layer specification is 100% solid content, and then apply a layer of ink. Send the PET, PP, and PE films into an oven for drying and then reel them up. Both acrylic resin and silicone resin have low melting points and high hardness, so they can meet low-temperature transfer requirements, and the high hardness can provide high scratch resistance.

Claims

1. A method for preparing a silicone resin, characterized in that: The following steps are involved: S1. First, mix concentrated hydrochloric acid and pure water and add them into the reactor; S2, then add toluene and ethanol separately into the reactor and leave for 15 minutes; S3, adding hexamethyldisiloxane dropwise into the reaction kettle again to complete mixing; S4, tetraethyl silicate, methyltrimethoxysilane and ethanol are mixed and added dropwise to the reaction kettle, mixed with other materials, and the materials are degassed by using an ultrasonic mixing kettle to remove bubbles in the mixed materials to form an organosilicon resin; S5, cutting and polishing the prepared silicone resin to form a finished silicone resin product; The mass addition ratios of the concentrated hydrochloric acid, pure water, toluene, ethanol, hexamethyldisiloxane, tetraethyl silicate, methyltrimethoxysilane and ethanol are 10%-12%, 13%-15%, 15%-20%, 8%-15%, 2%-4%, 8%-10%, 28%-30% and 8%-10% respectively. The defoaming treatment includes adding pigment powder and defoaming agent in an ultrasonic mixing kettle and uniformly mixing them; The ultrasonic mixing kettle comprises a kettle body (1), an ultrasonic generator (2) is fixed on the outer side of the kettle body (1), a first fixing ring (15) is fixed on the inside of the kettle body (1), an electric push rod (17) is fixed on the bottom end of the first fixing ring (15), a second fixing ring (18) is fixed on the bottom end of the electric push rod (17), a high-energy ultrasonic horn (16) is fixed on the inside of both the first fixing ring (15) and the second fixing ring (18), an ultrasonic generator (2) is fixed on the outer side of the kettle body (1), and the ultrasonic generator (2) and the high-energy ultrasonic horn (16) are connected.

2. The method for preparing a silicone resin according to claim 1, characterized in that: The first fixing ring (15) and the second fixing ring (18) are distributed along the height direction of the kettle body (1), and a spacing is left between the first fixing ring (15) and the second fixing ring (18). A cleaning brush (19) is fixed on the outer side of the second fixing ring (18), and the outer side of the cleaning brush (19) is in contact with the inner wall of the kettle body (1).

3. The method for preparing a silicone resin according to claim 1, characterized in that: A conical funnel (11) is arranged at the bottom end of the kettle body (1), an output pipe (4) is arranged at the bottom end of the kettle body (1), the bottom end of the conical funnel (11) is connected to the output pipe (4) via a pipeline, a gap is left between the bottom end of the conical funnel (11) and the bottom end of the kettle body (1), an electric heating pipe (14) is arranged in the gap, an electric heater (3) is arranged on the outside of the kettle body (1), and the electric heater (3) is connected to the electric heating pipe (14); The conical tip of the conical funnel (11) is arranged downward, the top of the conical funnel (11) is fixedly connected to a tripod (12), the bottom of the conical funnel (11) is provided with a through hole (20) for materials to pass through, a gap is left between the bottom of the tripod (12) and the through hole (20), a sweeping plate (13) is fixed to the bottom of the outer side of the stirring shaft (9), and the bottom of the sweeping plate (13) is attached to the inner side of the conical funnel (11).

4. The method for preparing a silicone resin according to claim 1, characterized in that: A motor (5) is fixed in the middle of the top end of the kettle body (1), and a driving shaft at the bottom end of the motor (5) is connected to a stirring shaft (9). The stirring shaft (9) extends into the interior of the kettle body (1), and a stirring plate (10) is arranged on the outside of the stirring shaft (9).

5. The method for preparing an organosilicon resin according to claim 1, characterized in that: A material delivery port (6) is provided on one side of the top end of the kettle body (1), an end cover (8) is provided on the material delivery port (6), and the material delivery port (6) is in communication with the interior of the kettle body (1); A thermometer (7) is provided on one side of the material delivery port (6), and the thermometer (7) extends into the interior of the kettle body (1).

6. The method for preparing an organosilicon resin according to claim 1, characterized in that: A plurality of high-energy ultrasonic horn rods (16) are provided, and the plurality of high-energy ultrasonic horn rods (16) are distributed at equal distances around the centers of the corresponding first fixing ring (15) and the second fixing ring (18).

7. The method for preparing an organosilicon resin according to claim 4, characterized in that: The stirring plates (10) and the high-energy ultrasonic horn (16) are arranged in a staggered manner.

8. An organosilicon resin, characterized in that: The method for preparing the organic silicone resin is used as claimed in any one of claims 1 to 9.

9. An application of an organosilicon resin, characterized in that: The organic silicone resin prepared by the method for preparing an organic silicone resin according to any one of claims 1 to 7 is applied in a low-temperature transfer process.

10. A method for applying an organosilicon resin, characterized in that: The application of the silicone resin according to claim 9 comprises: S1: Using silicone resin to make a protective coating, the protective coating includes an ink layer and a release layer; The ink layer includes, by mass, 2% acrylic resin, 7% silicone resin, 3% wax powder, 14% carbon black, 1% dispersant and 73% solvent, wherein the dispersant is AKN2070 and the solvent is xylene; The release layer includes, by mass, 90% wax powder, 5% silicone resin, 2% acrylic resin and 3% thermoplastic elastomer, wherein the thermoplastic elastomer is SEBS; S2: Apply a layer of silicone coating on the back of the PET, PP, and PE films that require low-temperature transfer, apply a release layer on the front of the PET, PP, and PE films, and then apply a layer of ink. Send the PET, PP, and PE films into the oven for drying and then reel them up.

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