Organic silicone oil and preparation method thereof

Abstract

The invention relates to the technical field of organic silicone oil production, and discloses organic silicone oil and a preparation method thereof.The organic silicone oil is prepared from 100-150 parts of organic silicone monomer, 60-80 parts of end-capping reagent, 3-8 parts of catalyst, 120-170 parts of organic solvent, 2-5 parts of pH regulator, 6-10 parts of stabilizer, 10-15 parts of antioxidant, 20-35 parts of hydrophobic silica gel and 15-25 parts of dioctyl didecanoate. Hydrophobic silica gel and dioctyl didecanoate materials are added in the production process of the organic silicone oil, so that the produced organic silicone oil has better impurity removal and reutilization capabilities, and the organic silicone oil can be continuously and repeatedly utilized in the process of being used as lubricating oil; and the adhesion between the organic silicone oil and dust and solid impurities can be changed after being diluted by adding water, so that the organic silicone oil can be repeatedly utilized, the product quality of the organic silicone oil is not influenced, and the service life and the use effect of the organic silicone oil as lubricating oil are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of organosilicon oil production, and specifically to an organosilicon oil and a preparation method thereof. Background Art

[0002] Organosilicon oil is a polysiloxane formed by alternating silicon and oxygen elements, usually existing in liquid or gel form, with excellent chemical stability and high-temperature resistance. It has excellent properties such as heat resistance, electrical insulation, weather resistance, hydrophobicity, physiological inertness, and small surface tension. Therefore, it is used as insulation, lubrication, shock absorption, dust-proof oil, dielectric fluid, heat carrier, etc.

[0003] According to a disclosed organosilicon oil defoamer and its preparation method (publication number: CN111760334A), in the above application, the polyether-modified silicone oil modified with quaternary ammonium salt has high temperature resistance, no floating oil on the water surface when used at 95 °C, no silicon spots are generated, and it meets environmental protection requirements. On the other hand, the quaternary ammonium salt also has certain antibacterial properties.

[0004] However, during the use of the above organosilicon oil, when the organosilicon oil is used as a lubricating oil, although it itself has anti-friction and anti-wear effects, during the continuous use of the lubricating oil, it is inevitably necessary to carry out a certain degree of reuse. However, the lubricating oil is very easy to adhere to dust or other impurities during the lubrication operation, and the organosilicon oil itself has a relatively high viscosity, resulting in poor efficiency in filtering and reusing the impurities contained therein. In view of this, we have proposed an organosilicon oil and a preparation method thereof. Summary of the Invention

[0005] The purpose of the present invention is to provide an organosilicon oil and a preparation method thereof to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An organosilicon oil, the organosilicon oil comprises the following components: 100 - 150 parts of organosilicon monomer, 60 - 80 parts of end-capping agent, 3 - 8 parts of catalyst, 120 - 170 parts of organic solvent, 2 - 5 parts of pH regulator, 6 - 10 parts of stabilizer, 10 - 15 parts of antioxidant, 20 - 35 parts of hydrophobic silica gel, 15 - 25 parts of dioctyl didecanoate.

[0007] Preferably, the silicone monomer is made of dimethyldichlorosilane, and the end-capping agent is hexamethyldisiloxane. The catalyst is one or a mixture of two of tetraethylammonium hydroxide and tetrapropylammonium hydroxide. The organic solvent is a heptane solvent, and the heptane solvent dissolves the silicone oil after being diluted by mixing with water. The pH regulator is a sulfuric acid solution and an aqueous NaOH solution. The stabilizer is methyl silicone oil, and the antioxidant is one or a mixture of two or more of triphenylphosphine oxide, trichloroacetic acid, and hydroxybenzoate.

[0008] A preparation method of silicone oil, the preparation method comprising the following steps: S1. Raw material preparation and mixing: First, the organic solvent is put into the reaction kettle, and then the silicone monomer and the end-capping agent are put into the reaction kettle in proportion and mixed and stirred. S2. Raw material hydrolysis reaction: During the stirring in S1, the reaction kettle is sealed, heated inside the reaction kettle, and maintained in a negative pressure state by a negative pressure device, ensuring that the temperature of the reaction kettle is 60-80 °C and the pressure is -0.08 MPa to -0.095 MPa. The hydrolysis reaction time is 2-3 h. S3. Telomerization processing: After the reaction in S2 is completed, a catalyst, an antioxidant, hydrophobic silica gel, and dioctyl didecanoate are added into the reaction kettle, and the reaction is continuously stirred for 1-1.5 h. S4. Neutralization adjustment: During the telomerization processing in S3, a pH regulator is added into the reaction kettle, and the pH value inside the reaction kettle is ensured to be between 6.5 and 7.5. S5. Coarse product treatment of the product: The mixture obtained in S4 is allowed to stand, and the top-layer product is taken into the storage tank. The middle-layer and bottom-layer mixtures are washed and filtered, and finally the middle-layer and bottom-layer mixtures are dried, and the dried product is transported to the storage tank and mixed with the top-layer product to obtain a crude silicone oil product. S6. Rectification and purification: The crude silicone oil product obtained in S5 is rectified and purified to finally obtain a high-purity silicone oil product.

[0009] Preferably, before the raw materials are put in during S1, the reaction kettle needs to be preheated to about 30 °C in advance, and the raw materials are preheated before being added to ensure that the raw material temperature is 25-35 °C, so that the raw materials have a preliminary temperature before mixing, making the subsequent mixing reaction more efficient. At the same time, the silicone monomer is subjected to impurity removal treatment to filter out possible precipitates or solid impurities in the silicone monomer due to storage, transportation, etc., to ensure the purity of the silicone monomer during the reaction and reduce the generation of impurities in the silicone oil.

[0010] Preferably, the reactor used in S1 includes a feeding structure, a bottom lifting structure and a stirring structure, wherein the bottom lifting structure is arranged on the outside of the stirring structure, the bottom lifting structure includes spiral rotating blades, and the feeding structure and the bottom lifting structure are jointly installed on a transmission shaft, and the transmission shaft is fixedly connected to the driving motor on the outer surface of the bottom of the reactor. The feeding structure includes a dispersion plate and a feeding bin, which are used to realize uniform dispersion of raw materials in the reactor as the transmission shaft rotates during the production process of organic silicone oil when raw materials are put into the reactor, thereby ensuring the uniformity of raw material distribution and improving the reaction rate. At the same time, the bottom lifting structure realizes the effect of driving the material precipitated at the bottom of the reactor upward as the transmission shaft rotates, thereby ensuring the reaction efficiency of the entire reactor during the working process, thereby reducing the waste of raw materials and improving the output ratio of organic silicone oil.

[0011] Preferably, a sealing cover is provided on the top of the reactor, and the sealing cover is used to seal the internal space of the reactor when the reactor is operating. At the same time, a W-shaped sealing structure is provided at the contact portion between the sealing cover and the reactor, and a sealing gasket is provided at the gap of the W-shaped sealing structure. The interior of the sealing gasket is hollow, and the internal cavity of the sealing gasket is filled with inert gas, and the inert gas filling amount is one half of the volume of the internal cavity of the sealing gasket, so that the reactor can maintain a high degree of sealing during the processing process, and the W-shaped sealing structure is combined with the sealing gasket filled with inert gas, so that the contact portion between the sealing cover and the reactor has a sufficiently large contact surface to avoid leakage, thereby ensuring the negative pressure condition in the reactor during the raw material hydrolysis reaction. At the same time, the inert gas filled in the sealing gasket can effectively prevent the sealing gasket from thermal expansion and contraction, which affects the use effect and service life of the sealing gasket.

[0012] Preferably, the feeding structure also includes a pre-loading tray, and the number of the pre-loading trays is set to four groups, corresponding to the four groups of added materials in the polyol reaction, and the pre-loading tray is connected with the feed bin and the dispersion tray. During the polyol processing in S3, the catalyst, antioxidant, hydrophobic silica gel and dioctyl dicaprylate are placed in the pre-loading tray, and the pre-loading tray is opened by an external control device, so that the catalyst, antioxidant, hydrophobic silica gel and dioctyl dicaprylate are evenly put into the cavity in the reactor through the dispersion tray, and the relevant reaction substances are added while ensuring the reaction temperature and negative pressure in the reactor. The production progress of the silicone oil can be guaranteed, and the silicone oil product will not deteriorate due to changes in the external environment and pressure conditions, thereby ensuring the production quality of the silicone oil.

[0013] Preferably, after the telomerization process in S3 is completed and the sealing cover is opened, the driving motor still drives the transmission shaft, and the stirring structure continuously stirs the materials in the reaction kettle. During this process, the pH value of the mixture in the reaction kettle is adjusted by adding a pH regulator until the pH value reaches between 6.5 and 7.5, and then the addition of the pH regulator is stopped. At the same time, after the temperature in the reaction kettle cools down to room temperature, the driving of the driving motor is turned off, so that the pH value of the mixture after the telomerization process in the reaction kettle can be in a neutral or slightly acidic state, ensuring the product quality of the silicone oil. At the same time, continuous stirring can ensure the balance of the pH value of the entire mixture. After the cooling is completed, the bottom lifting structure, the stirring structure, and the feeding structure are taken out to ensure that there are no components in the cavity of the reaction kettle that will affect the self-precipitation and stratification of the mixture, thus facilitating the purification of the silicone oil product.

[0014] Preferably, a discharge valve with adjustable height is provided on the side wall of the reaction kettle, and the standing time in S5 is 20 - 24 hours. Then, when discharging in layers, the adjustable discharge valve is used for discharging, and the upper, middle, and bottom mixtures are discharged separately. The mixtures at the upper layer and the connection between the upper and middle layers are discharged into the storage tank for caching, while the mixtures at the connection between the middle and bottom layers and the bottom layer are discharged into the filtering device. Pure water is added to the filtering device at a volume ratio of 1:10 for washing, and the solid impurities and waste in the mixtures at the connection between the middle and bottom layers and the bottom layer are filtered out by the filtering device, thereby increasing the yield of the silicone oil and reducing the impurity content.

[0015] Preferably, during drying in S5, constant-temperature drying is adopted, and the drying temperature of the drying device is set at 40°C. At the same time, the moisture in the crude silicone oil product is pre-removed before the drying operation. Since the density of the silicone oil is less than that of water, the silicone oil in the top region and the product at the interface between the two are taken out during the pretreatment process, so as to obtain high-purity silicone oil more quickly during rectification and purification in S6, improving the production efficiency of the silicone oil.

[0016] Compared with the prior art, the present invention provides a silicone oil and its preparation method, having the following beneficial effects: 1. In the production process of this silicone oil and its preparation method, hydrophobic silica gel and dioctyl didecanoate materials are added, so that the produced silicone oil has better impurity removal and recycling capabilities. As a result, the silicone oil can be continuously recycled multiple times during use as a lubricant, and its adhesion to dust and solid impurities can be changed by adding water for dilution. Therefore, the silicone oil can be recycled multiple times without affecting its own product quality, ensuring its service life and use effect as a lubricant.

[0017] 2. The silicone oil and its preparation method are provided with a feeding structure including a dispersion disk and a feeding bin in the reaction kettle during the production process of silicone. This enables the raw materials during the production of silicone oil to be evenly dispersed in the reaction kettle as the transmission shaft rotates, ensuring the uniformity of raw material distribution, increasing the reaction rate. At the same time, the bottom structure drives the precipitated materials at the bottom of the reaction kettle upward as the transmission shaft rotates, thereby ensuring the reaction efficiency of the entire reaction kettle during operation, reducing the waste of raw materials, and increasing the output ratio of silicone oil.

[0018] 3. The silicone oil and its preparation method are provided with a sealing cover at the top of the reaction kettle, which is combined with the W-shaped sealing structure and the hollow sealing gasket between the sealing cover and the reaction kettle. This enables the reaction kettle to maintain a high sealing performance during processing. And through the W-shaped sealing structure combined with the sealing gasket filled with inert gas inside, the contact part between the sealing cover and the reaction kettle has a large enough contact surface to avoid leakage, thereby ensuring the maintenance effect of the negative pressure condition during the hydrolysis reaction of raw materials in the reaction kettle. At the same time, filling the sealing gasket with inert gas can effectively prevent the sealing gasket from expanding and contracting due to heat, affecting the use effect and service life of the sealing gasket. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the production steps of the silicone oil of the present invention. Detailed Embodiments

[0020] As Figure 1 shown, the present invention provides a technical solution: a silicone oil and its preparation method. The silicone oil includes the following components: 100 - 150 parts of silicone monomer, 60 - 80 parts of end-capping agent, 3 - 8 parts of catalyst, 120 - 170 parts of organic solvent, 2 - 5 parts of pH regulator, 6 - 10 parts of stabilizer, 10 - 15 parts of antioxidant, 20 - 35 parts of hydrophobic silica gel, 15 - 25 parts of dioctyl didecanoate.

[0021] Specifically, the silicone monomer is made of dimethyldichlorosilane, and the end-capping agent is hexamethyldisiloxane. The catalyst is one or a mixture of tetraethylammonium hydroxide and tetrapropylammonium hydroxide. The organic solvent is heptane solvent, and the heptane solvent dissolves the silicone oil after being diluted by mixing with water. The pH regulator is sulfuric acid solution and NaOH aqueous solution. The stabilizer is methyl silicone oil. The antioxidant is one or a mixture of two or more of triphenylphosphine oxide, trichloroacetic acid, and hydroxybenzoate.

[0022] In an embodiment of the present invention, according to the components included in the above silicone oil, its preparation method includes the following steps: S1. Raw material preparation and mixing: First, put the organic solvent into the reaction kettle, and then put the organosilicon monomer and the capping agent into the reaction kettle in proportion and mix and stir them; S2. Hydrolysis reaction of raw materials: During the stirring in S1, seal the reaction kettle, heat the inside of the reaction kettle, and keep the inside of the reaction kettle in a negative pressure state through a negative pressure device, ensure that the temperature of the reaction kettle is between 60 °C and 80 °C and the pressure is between -0.08 MPa and -0.095 MPa, and the hydrolysis reaction time is 2 - 3 h; S3. Telomerization processing: After the reaction in S2 is completed, add a catalyst, an antioxidant, hydrophobic silica gel and dioctyl sebacate into the reaction kettle, and continuously stir and react for 1 - 1.5 h; S4. Neutralization adjustment: During the telomerization processing in S3, add a pH regulator into the reaction kettle, and ensure that the pH value in the reaction kettle is between 6.5 and 7.5; S5. Coarse product treatment of the product: Let the mixture obtained in S4 stand still, take the top - layer product into the storage tank, wash and filter the middle - layer and bottom - layer mixtures, finally dry the middle - layer and bottom - layer mixtures, and convey the dried materials to the storage tank to mix with the top - layer product to obtain the crude organosilicon oil product; S6. Rectification and purification: Rectify and purify the crude organosilicon oil product obtained in S5 to finally obtain a high - purity organosilicon oil product.

[0023] Specifically, before putting the raw materials in S1, it is necessary to pre - heat the reaction kettle to about 30 °C in advance, and pre - heat the raw materials before adding them to ensure that the raw material temperature is between 25 °C and 35 °C, so that the raw materials have a preliminary temperature before mixing, making the subsequent mixing reaction more efficient. At the same time, perform impurity removal treatment on the organosilicon monomer to filter out the precipitates or solid impurities that may appear in the organosilicon monomer due to storage, transportation, etc., to ensure the purity of the organosilicon monomer during the reaction and reduce the generation of impurities in the organosilicon oil. At the same time, the reaction kettle used in S1 includes a feeding structure, a bottom - lifting structure and a stirring structure. The bottom - lifting structure is arranged outside the stirring structure. The bottom - lifting structure includes spiral rotating blades, and the feeding structure and the bottom - lifting structure are jointly installed on a transmission shaft. The transmission shaft is fixedly connected to the driving motor on the outer surface of the bottom of the reaction kettle. The feeding structure includes a dispersion plate and a feeding bin, which are used to realize uniform feeding in the reaction kettle with the rotation of the transmission shaft during the raw material input in the production process of organosilicon oil, ensure the uniformity of raw material distribution, improve the reaction rate, and at the same time, the bottom - lifting structure drives the materials precipitated at the bottom of the reaction kettle upward with the rotation of the transmission shaft, so as to ensure the reaction efficiency during the whole working process of the reaction kettle, thereby reducing the waste of raw materials and increasing the output ratio of organosilicon oil.

[0024] In addition, a sealing cover is provided at the top of the reactor. During the operation of the reactor, the internal space of the reactor is sealed through the sealing cover. At the same time, a W-shaped sealing structure is provided at the contact part between the sealing cover and the reactor, and a sealing gasket is provided at the gap of the W-shaped sealing structure. The inside of the sealing gasket is hollow, and the internal cavity of the sealing gasket is filled with an inert gas, and the filling amount of the inert gas is one-half of the volume of the internal cavity of the sealing gasket. Thus, the reactor can maintain a high sealing performance during the processing. And through the W-shaped sealing structure and the sealing gasket filled with inert gas inside, the contact part between the sealing cover and the reactor has a sufficiently large contact surface to avoid leakage, so as to ensure the maintenance effect of the negative pressure condition during the raw material hydrolysis reaction in the reactor. At the same time, filling the sealing gasket with inert gas can effectively prevent the sealing gasket from expanding and contracting due to heat, affecting the use effect and service life of the sealing gasket.

[0025] Meanwhile, the feeding structure further includes a pre-feeding tray, and the number of the pre-feeding trays is set to four groups, corresponding to the four groups of added materials in the telomerization reaction. At the same time, the pre-feeding tray is connected to the feeding bin and the dispersion tray in a through manner. During the telomerization processing in S3, the catalyst, antioxidant, hydrophobic silica gel, and dioctyl sebacate are placed in the pre-feeding tray, and the pre-feeding tray is opened through an external control device, so that the catalyst, antioxidant, hydrophobic silica gel, and dioctyl sebacate are evenly put into the inner cavity of the reactor through the dispersion tray. Adding relevant reaction substances while ensuring the reaction temperature and negative pressure condition in the reactor can not only ensure the production progress of silicone oil, but also prevent the silicone oil product from deteriorating due to changes in the external environment and pressure conditions, thus ensuring the production quality of silicone oil. Further, after the telomerization processing in S3 is completed and the sealing cover is opened, the driving motor still maintains the driving of the transmission shaft, and the materials in the reactor are continuously stirred through the stirring structure. During this process, the pH value of the mixture in the reactor is adjusted by adding a pH regulator until the pH value reaches between 6.5 and 7.5, and then the addition of the pH value is stopped. At the same time, after the temperature in the reactor is cooled to room temperature, the driving of the driving motor is turned off, so that the pH value of the mixture after telomerization processing in the reactor can be in a neutral or slightly acidic state, ensuring the product quality of silicone oil. At the same time, continuous stirring can ensure the balance of the pH value of the whole mixture. After the cooling is completed, the bottom lifting structure, the stirring structure, and the feeding structure are taken out to ensure that there are no components in the inner cavity of the reactor that will affect the self-precipitation and stratification of the mixture, thus facilitating the purification of the silicone oil product.

[0026] In an embodiment of the present invention, a discharge valve with adjustable height is provided on the side wall of the reaction kettle, and the standing time during standing in S5 is 20 to 24 hours. Then, when discharging in layers, the discharge valve with adjustable height is used for discharging, and the upper layer, middle layer, and bottom layer mixtures are discharged separately. The mixtures of the upper layer and the connection between the upper layer and the middle layer are discharged into the storage tank for caching, while the mixtures at the connection between the middle layer and the bottom layer and the bottom layer are discharged into the filtering device. Pure water is added to the filtering device in a volume ratio of 1:10 for water washing. The solid impurities and waste materials in the mixtures at the connection between the middle layer and the bottom layer and the bottom layer are filtered out through the filtering device, thereby improving the yield of silicone oil and reducing the impurity content.

[0027] In the present invention, constant temperature drying is adopted during drying in S5, and the drying temperature of the drying device is set at 40 °C. At the same time, the moisture in the crude silicone oil product is pre-removed before the drying operation. Since the density of silicone oil is less than that of water, the silicone oil in the top region and the product at the interface between the two are taken out during the pretreatment process, so as to obtain high-purity silicone oil more quickly during rectification and purification in S6 and improve the production efficiency of silicone oil.

[0028] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, any modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An organosilicone oil, characterized in that: The silicone oil described above comprises the following components: 100-150 parts of silicone monomers, 60-80 parts of end-capping agents, 3-8 parts of catalysts, 120-170 parts of organic solvents, 2-5 parts of pH regulators, 6-10 parts of stabilizers, 10-15 parts of antioxidants, 20-35 parts of hydrophobic silica gel, and 15-25 parts of dioctyl dicaprylate.

2. An organosilicon oil according to claim 1, characterized in that: The silicone monomers are made of dimethyldichlorosilane, and the end-capping agents are made of hexamethyldisiloxane. The catalysts are one or a mixture of two of tetraethylammonium hydroxide and tetrapropylammonium hydroxide. The organic solvents are heptane solvents, and the heptane solvents dissolve the silicone oil after being mixed and diluted with water. The pH regulators are sulfuric acid solution and NaOH aqueous solution. The stabilizers are methyl silicone oil. The antioxidants are one or a mixture of two or more of triphenylphosphine oxide, trichloroacetic acid, and hydroxybenzoate.

3. A preparation method of an organosilicone oil, characterized in that: According to the silicone oil described in claims 1-2, the preparation method comprises the following steps: S1. Raw material preparation and mixing: First, put the organic solvent into the reaction kettle, and then put the silicone monomers and end-capping agents into the reaction kettle in proportion and mix and stir. S2. Raw material hydrolysis reaction: During the stirring in S1, seal the reaction kettle, heat the inside of the reaction kettle, and keep the inside of the reaction kettle in a negative pressure state through a negative pressure device, ensuring that the temperature of the reaction kettle is 60-80 °C and the pressure is -0.08 MPa to -0.095 MPa, and the hydrolysis reaction time is 2-3 h. S3. Telomerization processing: After the reaction in S2 is completed, add catalysts, antioxidants, hydrophobic silica gel, and dioctyl dicaprylate into the reaction kettle, and continuously stir and react for 1-1.5 h. S4. Neutralization adjustment: During the telomerization processing in S3, add a pH regulator into the reaction kettle and ensure that the pH value inside the reaction kettle is between 6.5 and 7.

5. S5. Coarse product treatment of the product: Let the mixture obtained in S4 stand, take the top-layer product and put it into the storage tank, wash and filter the middle-layer and bottom-layer mixtures, finally dry the middle-layer and bottom-layer mixtures, and transport the dried product to the storage tank to mix with the top-layer product to obtain a crude silicone oil product. S6. Rectification and purification: Rectify and purify the crude silicone oil product obtained in S5 to finally obtain a high-purity silicone oil product.

4. The preparation method of an organosilicon oil according to claim 3, characterized in that: Before putting the raw materials in S1, it is necessary to preheat the reaction kettle to about 30 °C in advance, preheat the raw materials before adding the raw materials, ensure that the raw material temperature is 25-35 °C, and at the same time perform impurity removal treatment on the silicone monomers.

5. The preparation method of an organosilicone oil according to claim 4, characterized in that: The reaction kettle used in S1 includes a feeding structure, a bottom-lifting structure, and a stirring structure. The bottom-lifting structure is arranged outside the stirring structure. The bottom-lifting structure includes spiral rotating blades, and the feeding structure and the bottom-lifting structure are jointly installed on a transmission shaft. The transmission shaft is fixedly connected to the driving motor on the outer surface of the bottom of the reaction kettle. The feeding structure includes a dispersion plate and a feeding bin.

6. The preparation method of an organosilicone oil according to claim 5, characterized in that: A sealing cover is provided at the top of the reactor. During the operation of the reactor, the internal space of the reactor is sealed through the sealing cover. At the same time, a W-shaped sealing structure is provided at the contact part between the sealing cover and the reactor, and a sealing gasket is provided at the gap of the W-shaped sealing structure. The inside of the sealing gasket is hollow, and an inert gas is filled in the internal cavity of the sealing gasket, and the filling amount of the inert gas is one-half of the volume of the internal cavity of the sealing gasket.

7. The preparation method of an organosilicone oil according to claim 6, characterized in that: The feeding structure further includes a pre-feeding tray, and the number of the pre-feeding trays is set to four groups, corresponding to the four groups of added materials in the telomerization reaction. At the same time, the pre-feeding tray is connected to the feeding bin and the dispersion tray in a through manner. During the telomerization process in S3, the catalyst, antioxidant, hydrophobic silica gel, and dioctyl sebacate are put into the pre-feeding tray, and the pre-feeding tray is opened through an external control device, so that the catalyst, antioxidant, hydrophobic silica gel, and dioctyl sebacate are evenly put into the inner cavity of the reactor through the dispersion tray.

8. The preparation method of an organosilicon oil according to claim 7, characterized in that: After the telomerization process in S3 is completed and the sealing cover is opened, the driving motor still drives the transmission shaft, and the materials in the reactor are continuously stirred through the stirring structure. During this process, the pH value of the mixture in the reactor is adjusted by adding a pH regulator until the pH value reaches between 6.5 and 7.5, and then the addition of the pH regulator is stopped. At the same time, after the temperature in the reactor cools to room temperature, the driving of the driving motor is turned off. At the same time, continuous stirring can ensure the balance of the pH value of the whole mixture. After the cooling is completed, the bottom lifting structure, the stirring structure, and the feeding structure are taken out.

9. The preparation method of an organosilicone oil according to claim 8, characterized in that: An adjustable-height discharge valve is provided on the side wall of the reactor. During the standing in S5, the standing time is 20-24 hours. Then, during the stratified discharge, the adjustable-height discharge valve is used for discharging, and the upper-layer, middle-layer, and bottom-layer mixtures are discharged separately. The mixtures at the upper layer and the connection between the upper layer and the middle layer are discharged into the storage tank for caching, while the mixtures at the connection between the middle layer and the bottom layer and the bottom layer are discharged into the filtering device, and pure water is added to the filtering device at a volume ratio of 1:10 for water washing.

10. The preparation method of an organosilicone oil according to claim 9, wherein: During the drying in S5, constant-temperature drying is adopted, and the drying temperature of the drying device is set to 40°C. At the same time, the moisture in the crude silicone oil product is pre-removed before the drying operation. Since the density of silicone oil is less than that of water, the silicone oil in the top area and the product at the interface between the two are taken out during the pretreatment process.

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