Preparation method of silica gel leather produced by combining solid silica gel and liquid silica gel

Abstract

The invention discloses a preparation method of silica gel leather produced by combining solid silica gel and liquid silica gel. The preparation method comprises the following steps: step 1, preparing solid silica gel; 2, preparing liquid silica gel; 4, conveying the base cloth, and moving the base cloth to cover the surface of the liquid silica gel for compounding; and 5, drying and curing the compounded whole material, and stripping the release paper after drying to obtain the silica gel leather compounded by the solid silica gel, the liquid silica gel and the base cloth. In the whole production process, machining is completed automatically and controllably, operation and control are easy and convenient, production can be conducted by adjusting different machining parameters according to production requirements, silica gel waste is extremely little, the yield is high, and the production cost is reduced; the organic silica gel leather with excellent characteristics is produced by using the high-molecular solid silica gel modified by the own technology with excellent stretching and tearing properties as the surface layer and using the low-molecular-weight liquid silica gel modified by the own technology as the bonding layer to be firmly combined with the base cloth.

Description

Technical Field

[0001] The invention relates to the technical field of silicone processing and production, and in particular to a method for preparing silicone leather produced by combining solid silicone and liquid silicone. Background Art

[0002] Silicone leather is a new type of environmentally friendly leather, made from silicone as raw material, combined with microfiber, non-woven fabric and other substrates, and processed. This leather uses solvent-free technology to coat and bond silicone on various substrates to make leather, which belongs to the new material industry developed in the 21st century.

[0003] Most of the liquid silicone materials used in the market are produced using the process of conventional leather production lines, but the liquid silicone has a low molecular weight, relatively poor physical properties, and high viscosity of the rubber, which makes production operations difficult. The product's wear resistance, tear resistance and scratch resistance are not ideal, and its application is greatly restricted. A small number of products are produced using solid silicone calendering. Solid silicone has a high molecular weight and better physical properties, but it is difficult to process, and the bonding effect with the base cloth is not ideal. Its application and production are relatively limited, and its production efficiency is low and the cost is high. Summary of the invention

[0004] The present invention provides a method for preparing silicone leather produced by combining solid silicone and liquid silicone. The method can complete the processing in an all-automatic and controllable manner throughout the entire production process, the operation and control are simple and convenient, different processing parameters can be adjusted according to production needs for production, silicone waste is extremely small, the yield rate is high and the production cost is reduced; the excellent tensile and tearing properties of high-molecular solid silicone modified by own technology are used as a surface layer, and low-molecular-weight liquid silicone modified by own technology is used as an adhesive layer and firmly combined with a base cloth to produce organic silicone leather with excellent properties.

[0005] In order to solve the above technical problems, the present invention provides a method for preparing silicone leather produced by combining solid silicone and liquid silicone, which specifically comprises the following steps:

[0006] Step 1: Select polydimethylsiloxane with a molecular weight of 600,000 to 900,000, nano-white carbon black with a specific surface area of ​​200 to 400 square meters per gram and vinyl MQ silicone resin as reinforcing materials, use low molecular weight hydroxy silicone oil and hexamethyldisilazane as structural control agents, mix the raw materials for 1.5 to 2.5 hours, heat to 160 to 200 ° C and mix for another hour, then vacuum mix for another hour to prepare the materials, use 0.36% and 1.2% hydrogenated silicone oil as a cross-linking agent, Custer platinum complex as a catalyst, and ethynyl cyclohexanol inhibitor to control the reaction rate, and obtain solid silica gel after production;

[0007] Step 2: After laying the release paper, apply 0.04-0.06mm solid silicone on the release paper, and then solidify the solid silicone in the mold;

[0008] Step 3: Select vinyl silicone oil with a molecular weight of 2000-100000, nano-white carbon black with a specific surface area of ​​200-400 square meters / gram and vinyl MQ silicone resin as reinforcing materials, use low molecular weight hydroxy silicone oil and hexamethyldisilazane as structural control agents, mix the raw materials for 1-3 hours, heat to 150-230°C and mix for another hour, then vacuum mix for another hour to prepare the materials, use 0.36% and 1.2% hydrogenated silicone oil as a cross-linking agent, Custer platinum complex as a catalyst, ethynyl cyclohexanol inhibitor to control the reaction rate, add A-151, KH-560, KH-570, and other silane coupling agents, ethyl silicate, butyrate titanate, etc. as bonding aids, obtain liquid silicone after production, and coat the liquid silicone on the surface of the solid silicone after curing;

[0009] Step 4: conveying the base fabric and moving the base fabric to cover the surface of the liquid silicone for compounding;

[0010] Step 5: After the composite is completed, the entire material is dried and solidified. After the drying is completed, the release paper is peeled off to obtain a silicone leather composited with solid silicone, liquid silicone and base cloth.

[0011] As a preferred embodiment of the above technical solution, the silicone leather produced by the above method is prepared by a silicone production device, and the silicone production device includes: a kneading machine for producing solid silicone;

[0012] Planetary mixers for the production of liquid silicone;

[0013] A coating machine is provided with a first conveying panel and a second conveying panel inside, a drying tunnel is provided near the inner wall of the first conveying panel, a mold trough is slidably provided on the surfaces of the first conveying panel and the second conveying panel, a base cloth loading door and a mold loading door are respectively provided on the outer sides of the ends of the first conveying panel and the second conveying panel, the base cloth loading door and the mold loading door are respectively used to transport the base cloth and the mold trough, and a release paper is placed inside the mold trough;

[0014] A silica gel storage chamber is arranged at the top of the coating machine, and a plurality of positioning tubes are connected to the bottom of the silica gel storage chamber, and a coating tube is arranged inside the positioning tube and is connected to the silica gel storage chamber;

[0015] A drying box is arranged outside the coating machine, a feed box is movably provided at the bottom of the inner wall of the drying box, a movable box is provided inside the feed box, two clamping plates are provided inside the movable box, an electric push rod is provided between the clamping plates and the inner wall of the movable box, a motor is provided inside the feed box, and the output end of the motor is transmission-connected to the movable box.

[0016] As a preferred embodiment of the above technical solution, vacuum generators are provided on the outsides of the kneading machine and the planetary mixer, and nitrogen is filled inside the kneading machine and the planetary mixer.

[0017] As a preferred embodiment of the above technical solution, a hot air blower is arranged inside the drying tunnel, the hot air blower is arranged on one side of the top of the first conveying panel, and the positioning pipes are evenly arranged on the top of the first conveying panel.

[0018] As a preferred embodiment of the above technical solution, a base fabric loading and transmission panel is arranged inside the base fabric loading door and extends to the top of the second transmission panel, a lifting plate is arranged on the top of the inner wall of the base fabric loading door, a first hydraulic lifting rod is evenly arranged between the lifting plate and the top of the inner wall of the base fabric loading door, a cutting tool is arranged at the bottom of the lifting plate, and the cutting tool is used for cutting the base fabric.

[0019] As a preferred embodiment of the above technical solution, a mold loading transfer panel is arranged inside the mold loading door and extends to one side of the first transfer panel, a push plate is arranged on one side of the inner wall of the coating machine, and a second electric push rod is evenly arranged between the push plate and the inner wall of the coating machine, and the push plate is used to push the mold trough body to the top of the first transfer panel, a detection plate is arranged on the top of the mold trough body, and infrared sensors, cameras and position sensors are evenly arranged on the surface of the detection plate, and a discharge transfer panel is arranged on the outer side of the second transfer panel and extends to the outside of the coating machine.

[0020] As a preferred embodiment of the above technical solution, the number of the drying boxes is set to be multiple, a conveyor belt is provided at the bottom of the drying box, a first slide is provided at the bottom of the inner wall of the drying box, the feeding box is slidably connected to the first slide, a second slide is provided on the top of the first slide, a first slider is slidably provided inside the second slide, a first electric screw is provided inside the second slide and the output end of the first electric screw is connected to the first slide, and a second hydraulic lifting rod is provided between the first slide and the first slide.

[0021] As a preferred embodiment of the above technical solution, an electromagnetic door is provided on the top of the inner wall of the movable box, a drying support plate is provided inside the drying box, one end of the second slide plate extends to the top of the drying support plate, heating rods are evenly provided inside the drying box, and the heating rods are filled with heating coils.

[0022] As a preferred embodiment of the above technical solution, a weighing assembly is provided on the outside of the kneading machine and the planetary mixer. The weighing assembly is provided with a hoist and a weighing platform. The hoist is used to transport materials to the kneading machine and the planetary mixer. A control box is provided on the outside of the weighing assembly.

[0023] As a preferred embodiment of the above technical solution, a material moving plate is provided on the top of the first conveying panel and the second conveying panel, and the material moving plate is arranged in the sliding cavity, a second electric screw is provided at one end of the sliding cavity, a second slider is provided at the output end of the second electric screw, the second slider is slidably connected to the sliding cavity, a mounting plate is provided at the bottom of the second slider, a vacuum suction cup is provided on the bottom surface of the mounting plate, and a third hydraulic lifting rod is provided between the mounting plate and the second slider.

[0024] The present invention provides a preparation method of silicone leather produced by a combination of solid silicone and liquid silicone, which comprises a kneading machine, a planetary mixer, a coating machine, a silicone storage chamber, a drying box and a feeding box. The solid silicone is produced by the kneading machine, and the liquid silicone is produced by the planetary mixer, and they are stored in the silicone storage chamber respectively. After the release paper of the required type is placed in the mold tank body, it is transported by the mold feeding transmission panel and enters the top of the first transmission panel. After the solid silicone is coated by the coating tube, it is initially cured. Then, the base cloth is transported by the feeding transmission panel and the base cloth is adsorbed by the vacuum suction cup. After the second electric screw rod works, it pushes the second slider to move to the surface of the mold tank body on the top of the first transmission panel, and the base cloth is moved and covered on the surface of the liquid silicone for compounding. Then, the whole is transported to the drying box for comprehensive drying. After the electric push rod works to drive the clamping plate to move and clamp the mold tank body from both sides, the second hydraulic lifting rod and the first electric screw rod work respectively. The entire feeding box and the mold trough are driven to move upward first and then horizontally into the feeding box. The motor drives the entire motor and the mold trough to rotate and flip the angle to pour the material onto the surface of the drying support plate for drying and curing. The entire production process is automatically and controllably completed. The operation and control are simple and convenient. Different processing parameters can be adjusted according to production needs for production. There is very little waste of silicone, high yield and reduced production costs. The excellent tensile and tearing properties of high molecular solid silicone modified by proprietary technology are used as the surface layer, and the low molecular weight liquid silicone modified by proprietary technology is used as the bonding layer and the base cloth is firmly combined to produce organic silicone leather with excellent properties. The silicone leather after drying and curing can be printed on the surface, and the back-end processing such as improving the feel can obtain satisfactory silicone leather, which is used in various occasions, such as furniture, decoration, car seat interiors, bags and shoes, clothing accessories and other occasions.

[0025] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic structural diagram of a coating machine of the present invention;

[0028] Figure 3 A side view of a coating machine according to the present invention;

[0029] Figure 4 It is a front view of the drying box and the feeding box of the present invention.

[0030] In the figure: 1 kneading machine, 2 planetary mixer, 3 coating machine, 30 drying tunnel, 31 first transmission panel, 32 second transmission panel, 33 mold feeding transmission panel, 34 mold trough, 35 base cloth feeding door, 351 base cloth feeding transmission panel, 352 lifting plate, 353 cutting tool, 354 first hydraulic lifting rod, 36 mold feeding door, 37 detection plate, 38 discharge transmission panel, 4 silicone storage cavity, 41 positioning tube, 42 coating tube, 5 drying box, 50 conveyor belt, 51 first slide plate, 52 second slide plate, 53 first slider, 54 second hydraulic lifting rod, 6 feeding box, 61 movable box, 62 clamping plate, 63 electric push rod, 64 motor, 65 electromagnetic door, 7 weighing assembly, 8 control box, 9 material moving plate, 91 second electric screw rod, 92 second slider, 93 mounting plate, 94 vacuum suction cup. DETAILED DESCRIPTION

[0031] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. 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.

[0032] Embodiment 1:

[0033] The embodiment of the present invention provides a method for preparing silicone leather produced by combining solid silicone and liquid silicone, which specifically comprises the following steps:

[0034] Step 1: Select polydimethylsiloxane with a molecular weight of 600,000 to 900,000, nano-white carbon black with a specific surface area of ​​200 to 400 square meters per gram and vinyl MQ silicone resin as reinforcing materials, use low molecular weight hydroxy silicone oil and hexamethyldisilazane as structural control agents, mix the raw materials for 1.5 to 2.5 hours, heat to 160 to 200 ° C and mix for another hour, then vacuum mix for another hour to prepare the materials, use 0.36% and 1.2% hydrogenated silicone oil as a cross-linking agent, Custer platinum complex as a catalyst, and ethynyl cyclohexanol inhibitor to control the reaction rate, and obtain solid silica gel after production;

[0035] Step 2: After laying the release paper, apply 0.04-0.06mm solid silicone on the release paper, and then solidify the solid silicone in the mold;

[0036] Step 3: Select vinyl silicone oil with a molecular weight of 2000-100000, nano-white carbon black with a specific surface area of ​​200-400 square meters / gram and vinyl MQ silicone resin as reinforcing materials, use low molecular weight hydroxy silicone oil and hexamethyldisilazane as structural control agents, mix the raw materials for 1-3 hours, heat to 150-230°C and mix for another hour, then vacuum mix for another hour to prepare the materials, use 0.36% and 1.2% hydrogenated silicone oil as a cross-linking agent, Custer platinum complex as a catalyst, ethynyl cyclohexanol inhibitor to control the reaction rate, add A-151, KH-560, KH-570, and other silane coupling agents, ethyl silicate, butyrate titanate, etc. as bonding aids, obtain liquid silicone after production, and coat the liquid silicone on the surface of the solid silicone after curing;

[0037] Step 4: conveying the base fabric and moving the base fabric to cover the surface of the liquid silicone for compounding;

[0038] Step 5: After the composite is completed, the entire material is dried and solidified. After the drying is completed, the release paper is peeled off to obtain a silicone leather composited with solid silicone, liquid silicone and base cloth.

[0039] The present embodiment provides a method for preparing silicone leather produced by combining solid silicone and liquid silicone, using the excellent tensile and tearing properties of high-molecular solid silicone modified by proprietary technology as the surface layer, and the low-molecular-weight liquid silicone modified by proprietary technology as the bonding layer and the base cloth to firmly combine to produce organic silicone leather with excellent properties. The silicone leather after drying and curing can be printed on the surface, and the back-end processing such as improving the feel can obtain satisfactory silicone leather, which is used in various occasions, such as furniture, decoration, car seat interior, luggage and shoes, clothing accessories, etc.

[0040] Embodiment 2:

[0041] See also Figure 1-4The embodiment of the present invention provides a silicone production device for silicone leather, the silicone production device comprising:

[0042] Kneader 1, for producing solid silica gel;

[0043] Planetary mixer 2, used to produce liquid silicone;

[0044] The coating machine 3 is provided with a first conveying panel 31 and a second conveying panel 32 inside. A drying tunnel 30 is provided near the inner wall of the first conveying panel 31 of the coating machine 3. A mold tank 34 is slidably provided on the surfaces of the first conveying panel 31 and the second conveying panel 32. A base cloth loading door 35 and a mold loading door 36 are provided on the outer sides of the ends of the first conveying panel 31 and the second conveying panel 32 respectively. The base cloth loading door 35 and the mold loading door 36 are used to transport the base cloth and the mold tank 34 respectively. Release paper is placed inside the mold tank 34.

[0045] The silicone storage chamber 4 is arranged at the top of the coating machine 3. The bottom of the silicone storage chamber 4 is connected with a plurality of positioning tubes 41. The positioning tubes 41 are provided with coating tubes 42 inside and are connected with the silicone storage chamber 4.

[0046] The drying box 5 is arranged outside the coating machine 3. A feed box 6 is movably provided at the bottom of the inner wall of the drying box 5. A movable box 61 is provided inside the feed box 6. Two clamping plates 62 are provided inside the movable box 61. An electric push rod 63 is provided between the clamping plates 62 and the inner wall of the movable box 61. A motor 64 is provided inside the feed box 6. The output end of the motor 64 is transmission-connected to the movable box 61.

[0047] It comprises a kneading machine 1, a planetary mixer 2, a coating machine 3, a silicone storage chamber 4, a drying box 5 and a feeding box 6. The kneading machine 1 produces solid silicone, and the planetary mixer produces liquid silicone, which are stored in the silicone storage chamber 4 respectively. After the required type of release paper is placed in the mold tank 34, it is transported by the mold feeding transmission panel 33 and enters the top of the first transmission panel 31. The solid silicone is coated by the coating tube 42 and then initially cured. Then, the base cloth is transported by the feeding transmission panel 351 and the base cloth is adsorbed by the vacuum suction cup 94. After that, the second electric screw 91 works to push the second slider 92 to move to the surface of the mold tank 34 on the top of the first transmission panel 31 to move the base cloth to cover the surface of the liquid silicone. The composite is then transferred as a whole to the drying box 5 for comprehensive drying. The electric push rod 63 drives the clamping plate 62 to move and clamp the mold tank body 34 on both sides. The second hydraulic lifting rod 54 and the first electric screw respectively drive the entire feeding box 6 and the mold tank body 34 to move upward and then move horizontally into the feeding box 6. The motor 64 drives the entire motor 64 and the mold tank body 34 to rotate and flip the angle to pour the material onto the surface of the drying support plate for drying and curing. The entire production process is automatically and controllably completed. The operation and control are simple and convenient. Different processing parameters can be adjusted according to production needs for production. There is very little waste of silicone, a high yield rate and reduced production costs.

[0048] In a further possible implementation of this embodiment, vacuum generators are provided on the outside of the kneading machine 1 and the planetary mixer 2, and the inside of the kneading machine 1 and the planetary mixer 2 are filled with nitrogen.

[0049] In this embodiment, solid silicone is produced by the kneading machine 1, and liquid silicone is produced by the planetary mixer, and they are stored in the silicone storage chamber 4 respectively. The silicone storage chamber 4 is provided with two separate storages, and the positioning tube 41 and the coating tube 42 are arranged in two groups to coat the solid silicone and the liquid silicone respectively.

[0050] In a further implementable embodiment of the present invention, a hot air blower is disposed inside the drying tunnel 30 , and the hot air blower is disposed on one side of the top of the first conveying panel 31 , and the positioning tubes 41 are evenly disposed on the top of the first conveying panel 31 .

[0051] The hot air blower in this embodiment can blow hot air to initially solidify the solid-state camera. At this time, the release paper is at the bottom layer, and the solid silicone is on the surface of the release paper.

[0052] In a further feasible embodiment of the present embodiment, a base fabric loading and transporting panel 351 is provided inside the base fabric loading and transporting door 35 and extends to the top of the second transporting panel 32, a lifting plate 352 is provided on the top of the inner wall of the base fabric loading and transporting door 35, a first hydraulic lifting rod 354 is evenly provided between the lifting plate 352 and the top of the inner wall of the base fabric loading and transporting door 35, a cutting tool 353 is provided on the bottom of the lifting plate 352, and the cutting tool 353 is used for cutting the base fabric.

[0053] The loading and conveying panel 351 in this embodiment conveys the base cloth, and when conveyed to the bottom of the cutting tool 353, the base cloth is cut into the required size and then conveyed again. The cut base cloth moves to the surface of the second conveying panel 32 and moves towards the first conveying panel 31.

[0054] In a further feasible embodiment of the present embodiment, a mold loading transmission panel 33 is provided inside the mold loading door 36 and extends to one side of the first transmission panel 31, a push plate is provided on one side of the inner wall of the coating machine 3, and a second electric push rod is evenly provided between the push plate and the inner wall of the coating machine 3, and the push plate is used to push the mold trough body 34 to move to the top of the first transmission panel 31, and a detection plate 37 is provided on the top of the mold trough body 34, and infrared sensors, cameras and position sensors are evenly provided on the surface of the detection plate 37, and a discharge transmission panel 38 is provided on the outer side of the second transmission panel 32 and extends to the outside of the coating machine 3.

[0055] The detection plate 37 in this embodiment detects and determines the size and type of the mold slot body 34 at the bottom and the release paper inside it, so as to determine the working quantity and working time of the coating tube 42 for coating. The second electric push rod pushes the mold slot body 34 after the detection to the surface of the first conveying panel 31 and moves it to the bottom of the coating tube 42 for coating.

[0056] In a further feasible embodiment of the present embodiment, the number of drying boxes 5 is set to be multiple, a conveyor belt 50 is provided at the bottom of the drying box 5, a first slide 51 is provided at the bottom of the inner wall of the drying box 5, the feeding box 6 is slidably connected to the first slide 51, a second slide 52 is provided on the top of the first slide 51, a first slider 53 is slidably provided inside the second slide 52, a first electric screw is provided inside the second slide 52 and the output end of the first electric screw is connected to the first slider 53, and a second hydraulic lifting rod 54 is provided between the first slider 53 and the first slide 51.

[0057] The electric push rod 63 in this embodiment drives the clamping plate 62 to move and clamp the mold slot body 34 on both sides, and then the second hydraulic lifting rod 54 and the first electric screw drive the entire feed box 6 and the mold slot body 34 to move upward and then move horizontally into the feed box 6. The motor 64 drives the entire motor 64 and the mold slot body 34 to rotate and flip the angle.

[0058] In a further feasible embodiment of the present embodiment, an electromagnetic door 65 is provided on the top of the inner wall of the movable box 61, a drying support plate is provided inside the drying box 5, one end of the second slide plate 52 extends to the top of the drying support plate, heating rods are evenly provided inside the drying box 5, and the heating rods are filled with heating coils.

[0059] The electromagnetic door 65 in this embodiment is opened to allow the turned-over mold tank body 34 and the filling material inside thereof to enter the drying box 5 for heating and drying.

[0060] In a further feasible embodiment of this embodiment, a weighing assembly 7 is provided on the outside of the kneading machine 1 and the planetary mixer 2. The weighing assembly 7 is provided with a hoist and a weighing platform. The hoist is used to transport materials to the kneading machine 1 and the planetary mixer 2. A control box 8 is provided on the outside of the weighing assembly 7.

[0061] The weighing component 7 in this embodiment can accurately measure the raw materials and then transmit them to the kneading machine 1 and the planetary mixer 2 for internal processing. The control box 8 can view the working status and working parameters of different equipment in real time, and can also adjust different working requirements.

[0062] In a further implementable embodiment of the present embodiment, a material moving plate 9 is provided on the top of the first conveying panel 31 and the second conveying panel 32, and the material moving plate 9 is arranged in the sliding cavity, a second electric screw 91 is provided at one end of the sliding cavity, a second slider 92 is provided at the output end of the second electric screw 91, the second slider 92 is slidingly connected to the sliding cavity, a mounting plate 93 is provided at the bottom of the second slider 92, a vacuum suction cup 94 is provided on the bottom surface of the mounting plate 93, and a third hydraulic lifting rod is provided between the mounting plate 93 and the second slider 92.

[0063] After the vacuum suction cup 94 in this embodiment absorbs the base cloth, the second electric screw 91 works to push the second slider 92 to move to the surface of the mold slot 34 on the top of the first conveying panel 31 to move the base cloth to cover the surface of the liquid silicone for compounding. At this time, the release paper is at the bottom layer, and the solid silicone is on the surface of the release paper and at the outermost layer.

[0064] Embodiment three:

[0065] On the basis of Example 1 and Example 2, the present invention further provides a specific production method of silicone leather, comprising the following steps:

[0066] Step 1: Select polydimethylsiloxane with a molecular weight of 600,000 to 900,000, nano-white carbon black with a specific surface area of ​​200 to 400 square meters per gram and vinyl MQ silicone resin as reinforcing materials, use low molecular weight hydroxy silicone oil and hexamethyldisilazane as structural control agents, mix for 1.5 to 2.5 hours in a nitrogen-protected kneader 1, heat to 160 to 200° C. and mix for another hour, then vacuum mix for another hour to prepare the material, use 0.36% and 1.2% hydrogenated silicone oil as a crosslinking agent, Custer platinum complex as a catalyst, and ethynyl cyclohexanol inhibitor to control the reaction rate, and obtain solid silica gel after production;

[0067] Step 2: After placing the required type of release paper in the mold tank 34, it is transported by the mold feeding transmission panel 33 and enters the top of the first conveying panel 31. The coating tube 42 coats 0.04-0.06mm solid silicone on the release paper in the mold tank 34, and the drying tunnel 30 solidifies the solid silicone in the mold;

[0068] Step 3: Select vinyl silicone oil with a molecular weight of 2000-100000, nano-white carbon black with a specific surface area of ​​200-400 square meters / gram and vinyl MQ silicone resin as reinforcing materials, use low molecular weight hydroxy silicone oil and hexamethyldisilazane as structural control agents, mix in a nitrogen-protected planetary mixer for 1-3 hours, heat to 150-230°C and mix for another hour, and then vacuum mix for another hour to prepare the materials, use 0.36% and 1.2% hydrogenated silicone oil as a cross-linking agent, Custer platinum complex as a catalyst, ethynyl cyclohexanol inhibitor to control the reaction rate, add A-151, KH-560, KH-570, and other silane coupling agents, ethyl silicate, butyrate titanate, etc. as bonding aids, and obtain liquid silicone after production, and another group of coating tubes 42 coats the liquid silicone on the surface of the solid silicone after curing;

[0069] Step 4: The base fabric is transported by the base fabric feeding and conveying panel 351, and the lifting plate 352 is pushed by the first hydraulic lifting rod 354 to move the base fabric to be cut into the required size and then transported to the top of the second conveying panel 32. After the vacuum suction cup 94 adsorbs the base fabric, the second electric screw 91 works to push the second slider 92 to the surface of the mold tank 34 on the top of the first conveying panel 31 to move the base fabric to cover the surface of the liquid silicone for compounding;

[0070] Step 5: After compounding, the mold tank body 34 drives the material to move out of the coating machine 3 and enter the bottom of the drying box 5. The electric push rod 63 drives the clamping plate 62 to move and clamp the mold tank body 34 on both sides. The second hydraulic lifting rod 54 and the first electric screw respectively drive the entire feeding box body 6 and the mold tank body 34 to move upward and then move horizontally into the feeding box body 6. The motor 64 drives the entire movable box 61 and the mold tank body 34 to rotate and flip the mold tank body 34 to pour the mold tank body 34 and the material inside it onto the surface of the drying support plate for drying and curing. After drying, the release paper is peeled off to obtain silicone leather composited with solid silicone, liquid silicone and base cloth.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0072] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0073] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for preparing silicone leather produced by combining solid silicone and liquid silicone, characterized in that: The specific steps include: Step 1: Select polydimethylsiloxane with a molecular weight of 600,000 to 900,000, nano-white carbon black with a specific surface area of ​​200 to 400 square meters per gram and vinyl MQ silicone resin as reinforcing materials, use low molecular weight hydroxy silicone oil and hexamethyldisilazane as structural control agents, mix the raw materials for 1.5 to 2.5 hours, heat to 160 to 200 ° C and mix for another hour, then vacuum mix for another hour to prepare the materials, use 0.36% and 1.2% hydrogenated silicone oil as a cross-linking agent, Custer platinum complex as a catalyst, and ethynyl cyclohexanol inhibitor to control the reaction rate, and obtain solid silica gel after production; Step 2: After laying the release paper, apply 0.04-0.06mm solid silicone on the release paper, and then solidify the solid silicone in the mold; Step 3: Select vinyl silicone oil with a molecular weight of 2000-100000, nano-white carbon black with a specific surface area of ​​200-400 square meters / gram and vinyl MQ silicone resin as reinforcing materials, use low molecular weight hydroxy silicone oil and hexamethyldisilazane as structural control agents, mix the raw materials for 1-3 hours, heat to 150-230°C and mix for another hour, then vacuum mix for another hour to prepare the materials, use 0.36% and 1.2% hydrogenated silicone oil as a cross-linking agent, Custer platinum complex as a catalyst, ethynyl cyclohexanol inhibitor to control the reaction rate, add A-151, KH-560, KH-570, and other silane coupling agents, ethyl silicate, butyrate titanate, etc. as bonding aids, obtain liquid silicone after production, and coat the liquid silicone on the surface of the solid silicone after curing; Step 4: conveying the base fabric and moving the base fabric to cover the surface of the liquid silicone for compounding; Step 5: After the composite is completed, the entire material is dried and solidified. After the drying is completed, the release paper is peeled off to obtain a silicone leather composited with solid silicone, liquid silicone and base cloth.

2. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 1, characterized in that: The silicone leather produced by the above method is prepared by a silicone production device, and the silicone production device includes: A kneading machine (1) for producing solid silica gel; Planetary mixer (2) for producing liquid silicone; A coating machine (3) is provided with a first conveying panel (31) and a second conveying panel (32) inside, a drying tunnel (30) is provided near the inner wall of the first conveying panel (31) of the coating machine (3), a mold trough (34) is slidably provided on the surface of the first conveying panel (31) and the second conveying panel (32), a base cloth loading door (35) and a mold loading door (36) are respectively provided on the outer sides of the ends of the first conveying panel (31) and the second conveying panel (32), the base cloth loading door (35) and the mold loading door (36) are respectively used to transport the base cloth and the mold trough (34), and a release paper is placed inside the mold trough (34); A silica gel storage chamber (4) is arranged at the top of the coating machine (3); a plurality of positioning tubes (41) are connected to the bottom of the silica gel storage chamber (4); a coating tube (42) is arranged inside the positioning tube (41) and is connected to the silica gel storage chamber (4); A drying box (5) is arranged outside the coating machine (3), and a feed box (6) is movably provided at the bottom of the inner wall of the drying box (5). A movable box (61) is provided inside the feed box (6), and two clamping plates (62) are provided inside the movable box (61). An electric push rod (63) is provided between the clamping plates (62) and the inner wall of the movable box (61). A motor (64) is provided inside the feed box (6), and the output end of the motor (64) is transmission-connected to the movable box (61).

3. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 2, characterized in that: The kneading machine (1) and the planetary mixer (2) are both provided with vacuum generators on the outside, and the inside of the kneading machine (1) and the planetary mixer (2) are both filled with nitrogen.

4. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 2, characterized in that: A hot air blower is arranged inside the drying tunnel (30), and the hot air blower is arranged on one side of the top of the first conveying panel (31). The positioning tubes (41) are evenly arranged on the top of the first conveying panel (31).

5. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 2, characterized in that: A base fabric feeding transmission panel (351) is arranged inside the base fabric feeding door (35) and extends to the top of the second transmission panel (32); a lifting plate (352) is arranged at the top of the inner wall of the base fabric feeding door (35); a first hydraulic lifting rod (354) is evenly arranged between the lifting plate (352) and the top of the inner wall of the base fabric feeding door (35); a cutting tool (353) is arranged at the bottom of the lifting plate (352); and the cutting tool (353) is used for cutting the base fabric.

6. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 2, characterized in that: A mold loading transfer panel (33) is arranged inside the mold loading door (36) and extends to one side of the first transfer panel (31); a push plate is arranged on one side of the inner wall of the coating machine (3); a second electric push rod is evenly arranged between the push plate and the inner wall of the coating machine (3); the push plate is used to push the mold trough body (34) to move to the top of the first transfer panel (31); a detection plate (37) is arranged on the top of the mold trough body (34); an infrared sensor, a camera and a position sensor are evenly arranged on the surface of the detection plate (37); a discharge transfer panel (38) is arranged on the outer side of the second transfer panel (32) and extends to the outer side of the coating machine (3).

7. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 2, characterized in that: The number of the drying boxes (5) is set to be multiple, a conveyor belt (50) is arranged at the bottom of the drying box (5), a first slide plate (51) is arranged at the bottom of the inner wall of the drying box (5), the feeding box (6) is slidably connected with the first slide plate (51), a second slide plate (52) is arranged on the top of the first slide plate (51), a first slider (53) is slidably arranged inside the second slide plate (52), a first electric screw is arranged inside the second slide plate (52) and the output end of the first electric screw is connected to the first slider (53), and a second hydraulic lifting rod (54) is arranged between the first slider (53) and the first slide plate (51).

8. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 7, characterized in that: An electromagnetic door (65) is arranged at the top of the inner wall of the movable box (61), a drying support plate is arranged inside the drying box (5), one end of the second slide plate (52) extends to the top of the drying support plate, heating rods are evenly arranged inside the drying box (5), and heating coils are filled inside the heating rods.

9. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 2, characterized in that: A weighing assembly (7) is provided on the outside of the kneading machine (1) and the planetary mixer (2). The weighing assembly (7) is provided with an elevator and a weighing platform. The elevator is used to transport materials to the kneading machine (1) and the planetary mixer (2). A control box (8) is provided on the outside of the weighing assembly (7).

10. The method for preparing silicone leather produced by combining solid silicone and liquid silicone according to claim 2, characterized in that: A material moving plate (9) is provided on the top of the first transmission panel (31) and the second transmission panel (32), and the material moving plate (9) is arranged in a sliding cavity, a second electric screw (91) is provided at one end of the sliding cavity, a second slider (92) is provided at the output end of the second electric screw (91), the second slider (92) is slidably connected to the sliding cavity, a mounting plate (93) is provided at the bottom of the second slider (92), a vacuum suction cup (94) is provided on the bottom surface of the mounting plate (93), and a third hydraulic lifting rod is provided between the mounting plate (93) and the second slider (92).

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