A rapid curing two-component condensation dealcoholization type silicone adhesive and a preparation method thereof

Abstract

The present application relates to a kind of fast curing two-component condensation dealcoholization type silicone glue and preparation method, raw material includes A component: hydroxyl silicone oil or alkoxy silicone oil, filler A, crosslinking agent, coupling agent, catalyst;B component: inert silicone oil, Burgess reagent (N- (triethylammonium sulfuryl) methyl carbamate), filler B.The adhesive curing process organosilicon condensation dealcoholization vulcanization and the effect of synergistic catalysis can be achieved by the reaction of alcohol dehydration into alkene with Burgess reagent as dehydrating agent for alcohol dehydration, ultimately realizes the room temperature fast deep layer curing of dealcoholization type organosilicon adhesive, can realize 4h glue layer curing depth ≥20mm;The adhesive is suitable for the application scene requiring room temperature fast curing or deep layer potting etc., can significantly improve production efficiency.

Description

Technical Field

[0001] This invention relates to a two-component condensation-dealcohol type silicone adhesive that can be rapidly cured at room temperature, belonging to the field of silicone adhesives. Background Technology

[0002] Silicone sealant is a type of organic-inorganic hybrid polymer material with silicon-oxygen bonds as the main chain and organic groups as the side chains. Due to its large Si-O-Si bond energy, large bond angle, high degree of orientation freedom, and low modulus, it has good flexibility, high temperature resistance, weather resistance, and corrosion resistance. Therefore, it is widely used in construction, industry, photovoltaics, new energy vehicles, electronics industry and other fields.

[0003] Condensation-de-alcohol silicone sealants typically involve the vulcanization of hydroxyl or alkoxy silicone oil with an alkoxysilane crosslinking agent under a catalyst, releasing small alcohol molecules. Compared to deoxime and deacidification silicone sealants, they offer better environmental friendliness and are therefore more widely used in fields with higher environmental requirements, such as electronics, engineering, and new energy. The curing process of de-alcohol silicone requires interaction with moisture in the air to form an elastomer. Its curing effect is greatly affected by temperature and humidity. Under typical environmental conditions (temperature 25℃, humidity 50%RH), the adhesive layer can be surface-dry within 5-30 minutes, and a preliminary curing of a 0.1-2mm thickness can be achieved within 24 hours. However, as the curing depth and crosslinking density increase, the rate at which moisture required for the condensation reaction migrates from the surface to the interior slows down. Curing depths greater than 10mm often require more than a week. This drawback makes it unsuitable for scenarios requiring rapid bonding and deep potting, such as consumer electronics, new energy vehicles, and electronic packaging, which emphasize production efficiency, and can severely impact customer workflow.

[0004] In previous patent reports, such as CN1639219A and CN111057517A, the curing speed of de-alcoholized silicone sealants was improved by modifying silicone oil or compounding multiple silanes. However, the overall improvement effect was limited and none of them could meet the requirement of deep curing in a short time (4h≥20mm).

[0005] Therefore, the rapid room temperature curing of de-alcoholized silicone sealants is an industry problem that urgently needs to be solved and has high commercial value. Summary of the Invention

[0006] This invention addresses the current limitation of condensation-type silicone sealants in achieving rapid deep curing by developing a rapid-curing two-component condensation-de-alcohol silicone sealant and its preparation method. By introducing Burgess reagent (i.e., N-(triethylammonium sulfonyl)carbamate) as a dehydrating agent in the alcohol dehydration to olefin reaction into the condensation-de-alcohol silicone sealant reaction, the synergistic promoting effect of the two can achieve rapid deep curing at room temperature.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] This invention provides a fast-curing two-component condensation-dealcoholization type silicone sealant, which is composed of component A and component B in a volume ratio of (10-4):1;

[0009] Based on component A, its mass percentage composition includes:

[0010] Hydroxy-hydroxy silicone oil or alkoxy silicone oil 40-60%;

[0011] Packing material A 30-60%;

[0012] Crosslinking agent 0.5-3%;

[0013] Coupling agent 0.5-3%;

[0014] Catalyst 0.05-0.5%;

[0015] Based on component B, its mass percentage composition includes:

[0016] Inert silicone oil 40-60%;

[0017] Burgess's reagent 5-10%;

[0018] Packing material B: 30-50%.

[0019] In detail, in silicone sealant, the volume ratio of component A to component B includes, but is not limited to, compositions of 10:1, 9.5:1, 9:1, 8.5:1, 8:1, 7.5:1, 7:1, 6.5:1, 6:1, 5.5:1, 5:1, 4.5:1, 4:1, or any combination thereof.

[0020] Specifically, the composition of component A by mass percentage includes: the hydroxyl silicone oil or alkoxy silicone oil, including but not limited to 40%, 42%, 45%, 48%, 50%, 53%, 55%, 58%, 60%, or any combination thereof; the filler A, including but not limited to 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48%, 50%, 53%, 55%, 58%, 60%, or any combination thereof; and the crosslinking agent, including but not limited to 0.5%, 0.8%, 1.0%, 1.2%, 1.5%, 1. The coupling agent includes, but is not limited to, a range of 0.5%, 0.8%, 1.0%, 1.2%, 1.5%, 1.8%, 2.0%, 2.2%, 2.5%, 2.8%, 3.0%, or any two of these ranges; the catalyst includes, but is not limited to, a range of 0.05%, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5%, or any two of these ranges.

[0021] Specifically, the mass percentage composition of component B is as follows: the inert silicone oil includes, but is not limited to, a range of 40%, 42%, 45%, 48%, 50%, 53%, 55%, 58%, 60%, or any two of these; the Burgess reagent includes, but is not limited to, a range of 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, or any two of these; and the filler B includes, but is not limited to, a range of 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48%, 50%, or any two of these.

[0022] In component B of this invention, the Burgess reagent is an inner salt of a carbamate, specifically N-(triethylammonium sulfonyl)carbamate. The Burgess reagent participates in the alcohol dehydration to olefin formation reaction and the organosilicon condensation dehydration and vulcanization reaction, achieving a synergistic catalytic effect. As a dehydrating agent, the Burgess reagent achieves intramolecular or intermolecular dehydration of secondary and tertiary alcohols under mild room temperature and neutral conditions. The released water can act as a promoter for the organosilicon dehydration and vulcanization reaction, achieving rapid curing. Specifically, hydroxyl silicone oil or alkoxy silicone oil undergoes organosilicon condensation dehydration and vulcanization with a crosslinking agent under the action of a catalyst. The released small molecule alcohols (X-CH2OH) are captured by the Burgess reagent and can participate in the alcohol dehydration to olefin formation reaction. The water generated from the alcohol dehydration to olefin formation further promotes the vulcanization reaction of hydroxyl silicone oil or alkoxy silicone oil with the crosslinking agent, ultimately achieving rapid deep curing. The route is shown below:

[0023]

[0024] In one embodiment, the hydroxyl silicone oil or alkoxy silicone oil is a base polymer with a viscosity of 50-60000 cP.

[0025] Specifically, the hydroxyl silicone oil is selected from dimethyl hydroxyl silicone oil (107 silicone oil) with a viscosity of 50-50000 cP, including but not limited to viscosity ranges of 50 cP, 100 cP, 500 cP, 1000 cP, 5000 cP, 10000 cP, 15000 cP, 20000 cP, 25000 cP, 30000 cP, 35000 cP, 40000 cP, 45000 cP, 50000 cP, or any combination thereof; for example, 107 silicone oil with viscosities of 1500 cP, 5000 cP, 10000 cP, 20000 cP, and 50000 cP.

[0026] Specifically, the alkoxy silicone oil has a viscosity of 150-60000 cP, including but not limited to a viscosity range of 150 cP, 500 cP, 1000 cP, 5000 cP, 10000 cP, 15000 cP, 20000 cP, 25000 cP, 30000 cP, 35000 cP, 40000 cP, 45000 cP, 50000 cP, 55000 cP, 60000 cP, or any combination thereof; selected from one or more of monoalkoxy-terminated silicone oil, diekoxy-terminated silicone oil, and trialkoxy-terminated silicone oil, preferably one or more of diekoxy-terminated silicone oil and trialkoxy-terminated silicone oil; for example, one or more of diekoxy-terminated silicone oil and trialkoxy-terminated silicone oil with viscosities of 1500 cP, 10000 cP, and 20000 cP.

[0027] In one embodiment, the inert silicone oil refers to silicone oil whose end-capping groups are inert groups and do not participate in chemical reactions during use. It is selected from one or more of methyl silicone oil, phenyl silicone oil, polyether silicone oil, long-chain alkyl silicone oil, trifluoropropyl silicone oil, ethyl silicone oil, etc., and is preferably one or more of methyl silicone oil, phenyl silicone oil, ethyl silicone oil, etc.

[0028] In one embodiment, filler A and filler B are selected from one or more of silica powder, alumina, aluminum hydroxide, calcium carbonate, and fumed silica; they may be the same or different. In actual production, the particle size of the powder can be selected from the nanometer level to about 100 micrometers, depending on different requirements.

[0029] The present invention provides a fast-curing two-component condensation-dealcohol type silicone sealant as described above. Component A further includes a crosslinking agent, a coupling agent, and a catalyst. These additives and auxiliary components can be selected from conventional sources within the field. For example, the following raw materials can be specifically selected:

[0030] In one embodiment, the crosslinking agent is selected from alkoxysilane crosslinking agents, preferably one or more of methyltrimethoxysilane, vinyltrimethoxysilane, methyltriethoxysilane, vinyltriethoxysilane, etc.

[0031] In one embodiment, the coupling agent is selected from one or more of silane coupling agents, titanate coupling agents, zirconate coupling agents, aluminate coupling agents, etc., preferably silane coupling agents such as γ-aminopropyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-(methacryloyloxy)propyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopropyltrimeth(eth)oxysilane, N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane.

[0032] In one embodiment, the catalyst is selected from organotin catalysts, preferably one or more of dibutyltin acetate, dibutyltin dilaurate, dioctyltin dilaurate, di(dodecylthio)dibutyltin, dibutyltin maleate, stannous octoate, and dioctyldineodecanotin oxide.

[0033] This invention also provides a method for preparing the above-mentioned rapid-curing two-component condensation-dealcohol type silicone sealant. Referring to the conventional process for two-component silicone sealant, the raw materials are mixed to obtain component A and component B for later use; then, they are mixed in proportion, applied, and cured. In one embodiment, component A and component B are prepared by the following method:

[0034] (1) Hydroxy silicone oil or alkoxy silicone oil and filler A are heated and stirred evenly under vacuum. Then, the temperature is lowered, N2 is replaced, and crosslinking agent, coupling agent and catalyst are added. The mixture is stirred evenly under vacuum to obtain component A.

[0035] (2) The inert silicone oil and filler B were heated and stirred under vacuum until homogeneous. Then the mixture was cooled, replaced with N2, and Burgess reagent was added. The mixture was stirred under vacuum until homogeneous to obtain component B.

[0036] The above description defines some of the operating conditions for the preparation process. Other operating and process conditions in the preparation method of the present invention, as well as the apparatus used, can be selected using conventional methods in the art. There are no particular restrictions. Those skilled in the art can optimize the process based on existing technology and known processes according to actual needs. For example, the conditions listed in the following embodiments of the present invention can be used in the production process.

[0037] Specifically, a method for preparing a fast-curing two-component condensation-dealcoholizing silicone sealant includes the following steps:

[0038] (1) Add hydroxyl silicone oil or alkoxy silicone oil and filler to a double planetary mixer. Stir at 10-50 rpm / min and disperse at 100-1000 rpm / min. Heat to 100-150℃ and keep warm. Vacuum stir for 1-5 hours. Then cool down to below 40℃. After N2 is fully replaced, add crosslinking agent, coupling agent and catalyst. Stir at 10-50 rpm / min and disperse at 100-1000 rpm / min. Vacuum stir for 20-60 minutes to obtain component A.

[0039] (2) Add inert silicone oil and filler B to a stirred tank, heat to 100-150℃ and keep warm under vacuum, stir at 10-50 rpm / min and disperse at 100-1000 rpm / min for 1-3 hours, then cool down to below 40℃, after N2 has been fully replaced, add Burgess reagent, stir at 10-50 rpm / min and disperse at 300-1200 rpm / min under vacuum for 20-60 minutes to obtain component B, for later use;

[0040] (3) When using, mix component A and component B at a volume ratio of (10-4):1 and apply adhesive for curing.

[0041] In step (2) of the preparation method of the present invention, during the preparation of component B, because Burgess reagent is sensitive to water vapor and oxygen, the inert silicone oil is first premixed with filler B, and then the water is fully removed by vacuuming at 100-150℃. After sufficient N2 replacement, Burgess reagent powder is added and dispersed, which can play a good protective role for Burgess reagent.

[0042] In actual production, the silicone sealant described in this invention, after preparing component A and component B, can be separately packaged into KIT tubes with a volume ratio of (4-10):1 and sealed for storage.

[0043] This invention introduces Burgess reagent into the raw materials for preparing condensation-type dealcoholized silicone adhesives, enabling rapid, deep curing of dealcoholized silicone adhesives at room temperature. This solves the problem that traditional condensation-type dealcoholized silicone adhesives cannot achieve rapid, deep curing in a short time. This adhesive is suitable for applications requiring rapid, deep curing and good sealing and bonding properties, achieving a curing depth of ≥20mm in 4 hours.

[0044] Compared with the prior art, the advantages of this invention are as follows:

[0045] This invention is the first to introduce Burgess reagent as a dehydrating agent to promote the dehydration of alcohols to form olefins into condensation-type dehydrating silicone adhesives. On the one hand, the dehydration and deoxygenation processes and the protective effect of inert silicone oil ensure the storage stability of Burgess reagent in component B. On the other hand, when used in combination, it can be used with organosilicon condensation dehydration vulcanization, which has a synergistic catalytic effect with Burgess reagent as a dehydrating agent for the dehydration of alcohols to form olefins. Ultimately, it achieves rapid deep curing of dehydrating silicone adhesives at room temperature, solving the problem that traditional condensation-type dehydrating silicone adhesives cannot achieve rapid deep curing in a short time, thus expanding its potential application areas. Detailed Implementation

[0046] To facilitate understanding of the present invention, preferred embodiments are provided below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention.

[0047] The main raw materials used in the various embodiments and comparative examples of this invention are sourced as follows. Unless otherwise specified, other raw materials and reagents were obtained through commercially available channels:

[0048] Burgess reagent: purchased from Hubei Jingxiang Technology Co., Ltd.;

[0049] Hydroxysilicone oil: purchased from Zhejiang Weifeng New Materials Co., Ltd.;

[0050] Dimethyl silicone oil: purchased from Shandong Dongyue Organosilicon Materials Co., Ltd.;

[0051] Aluminum hydroxide: purchased from Danyang Yunhui Electronics Co., Ltd.;

[0052] Methyltrimethoxysilane and vinyltrimethoxysilane: purchased from Shandong Silicon Science New Materials Co., Ltd.

[0053] γ-aminopropyltriethoxysilane and N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane were purchased from Hubei Xinlantian New Materials Co., Ltd.

[0054] Silicon micro powder: purchased from Guangzhou Yushun New Materials Technology Co., Ltd.;

[0055] Gas-like silicon: purchased from Hubei Huifu Nanomaterials Co., Ltd.;

[0056] Alkoxy silicone oil: 1500cp bifunctional alkoxy-terminated silicone oil, purchased from Orange Sky New Materials (Guangzhou) Co., Ltd.

[0057] Dibutyltin dilaurate and dioctyl dinedecanoyltin oxide: purchased from Changzhou Kerry Chemical Technology Co., Ltd.

[0058] 4-(aminosulfonyl)benzoate ethyl ester: purchased from Shanghai Hans Chemical Co., Ltd.;

[0059] N,N-Dimethylformamide diethyl acetal: purchased from Condis Chemical (Hubei) Co., Ltd.

[0060] Example 1

[0061] 5500g of 10000cp hydroxyl silicone oil, 3700g of silica powder, and 500g of gaseous silica were added to a 20L double planetary stirred tank. The mixture was heated to 120℃, kept at that temperature, and then vacuumed. The stirring speed was 20rpm / min, and the dispersion speed was 300rpm / min. The mixture was stirred for 2 hours. After that, the temperature was lowered to below 40℃ and N2 was fully replaced. Then, 150g of methyltrimethoxysilane, 140g of γ-aminopropyltriethoxysilane, and 10g of dibutyltin dilaurate were added. The mixture was stirred at 30rpm / min, dispersed at 500rpm / min, and vacuumed for 30 minutes to obtain component A.

[0062] 550g of 5000cP dimethyl silicone oil, 341g of silica powder, and 54g of gaseous silicon were added to a 2.5L double planetary stirred tank. The mixture was heated to 120℃, kept at that temperature, and then vacuumed. The stirring speed was 20rpm / min, and the dispersion speed was 300rpm / min. The mixture was stirred for 2 hours. After that, the temperature was lowered to below 40℃ and N2 was fully replaced. Then, 55g of Burgess reagent was added. The mixture was stirred at 10rpm / min, dispersed at 300rpm / min, and vacuumed for 30 minutes to obtain component B.

[0063] Components A and B are separately packaged into KIT tubes with a volume ratio of 10:1 and sealed for storage to obtain sample 1 of fast-curing two-component condensation-dealcoholized silicone sealant.

[0064] Example 2

[0065] Add 4860g of 5000cp hydroxy silicone oil and 4800g of calcium carbonate to a 20L double planetary stirred tank, heat to 110℃ and hold under vacuum, stir at 10rpm / min and disperse at 600rpm / min for 4h, then cool to below 40℃ and allow sufficient N2 replacement before adding 207g of vinyltriethoxysilane, 120g of N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane and 13g of dioctyl dinedecanoyltin oxide, stir at 20rpm / min and disperse at 1000rpm / min under vacuum for 40min to obtain component A;

[0066] Add 450g of 3000cP dimethyl silicone oil and 474g of calcium carbonate to a 2.5L double planetary stirred tank, heat to 110℃, maintain the temperature and apply vacuum, stir at 10rpm / min and disperse at 300rpm / min for 2h, then cool to below 40℃, perform sufficient N2 replacement, add 76g of Burgess reagent, stir at 40rpm / min and disperse at 500rpm / min under vacuum for 60min to obtain component B;

[0067] The components of step A and step B are separately packaged into KIT tubes with a volume ratio of 6:1 and sealed for storage to obtain sample 2 of the fast-curing two-component condensation-dealcoholized silicone sealant.

[0068] Example 3

[0069] 4500g of 1500cp difunctional alkoxy-terminated silicone oil, 4100g of aluminum hydroxide, and 872g of gaseous silicon were added to a 20L double planetary stirred tank. The mixture was heated to 150℃, kept at that temperature, and then vacuumed. The stirring speed was 50rpm / min, and the dispersion speed was 1000rpm / min. The mixture was stirred for 30min, and then cooled to below 40℃. After sufficient N2 replacement, 300g of vinyltrimethoxysilane, 220g of γ-aminopropyltriethoxysilane, and 8g of dibutyltin dilaurate were added. The mixture was stirred at 30rpm / min, and the dispersion speed was 600rpm / min. Vacuuming was carried out for 30min to obtain component A.

[0070] 560g of 1500cP dimethyl silicone oil, 256g of aluminum hydroxide, and 90g of gaseous silicon were added to a 2.5L double planetary stirred tank. The mixture was heated to 150℃, kept at that temperature, and then vacuumed. The stirring speed was 40 rpm / min, and the dispersion speed was 800 rpm / min. The mixture was stirred for 2 hours. After that, the temperature was lowered to below 40℃ and N2 was fully replaced. Then, 94g of Burgess reagent was added. The mixture was stirred at 30 rpm / min, dispersed at 800 rpm / min, and vacuumed for 30 minutes to obtain component B.

[0071] The components of step A and step B are respectively packaged into KIT packaging tubes with a volume ratio of 4:1 and sealed for storage to obtain sample 3 of rapid curing two-component condensation-dealcoholized silicone sealant.

[0072] Comparative Example 1

[0073] Referring to Example 1, the only difference is that Burgess reagent is not added to component B, while other operations and conditions remain unchanged, resulting in Comparative Sample 1.

[0074] Comparative Example 2

[0075] Referring to Example 1, the only difference is that the Burgess reagent in component B is replaced with an equal mass of ethyl 4-(aminosulfonyl)benzoate, while other operations and conditions remain unchanged, to obtain Comparative Sample 2.

[0076] Comparative Example 3

[0077] Referring to Example 1, the only difference is that the Burgess reagent in component B is replaced with an equal mass of the dehydrating agent N,N-dimethylformamide diethyl acetal, while other operations and conditions remain unchanged, resulting in Comparative Sample 3.

[0078] The silicone adhesives prepared in Examples 1-3 and Comparative Examples 1-3 were tested at the same temperature and humidity (temperature 23±2℃, humidity 50±5%RH) for different time periods at room temperature. The results are shown in Table 1 below.

[0079] Curing depth test method: After mixing components A and B, pour the mixture into a disposable plastic cup, control the adhesive layer thickness to 50 mm, place the sample in a standard environment (temperature 23±2℃, humidity 50±5%RH), and take it out at different time periods to test the thickness of the cured adhesive layer.

[0080] Table 1 Comparison of Curing Depth of Two-Component De-Alcoholized Silicone Adhesives

[0081]

[0082] Comparing the performance data of the silicone sealants in the above examples and comparative examples, the deep curing speed of Examples 1, 2, and 3 is significantly faster than that of Comparative Example 1 without the introduction of Burgess reagent. Examples 1, 2, and 3 can achieve a maximum curing depth of >20mm after 4 hours. However, in Comparative Examples 2 and 3, replacing Burgess reagent with ethyl 4-(aminosulfonyl)benzoate and N,N-dimethylformamide diethyl acetal in equal amounts has almost no promoting effect on the deep curing of the colloid. The reason for this may be that the dehydration structure and reactivity of these two reagents are low. They need to be at a high temperature (>50℃) or with the help of a specific noble metal such as palladium catalyst to achieve a good dehydration effect. In summary, it can be seen that the condensation-dehydration type silicone sealant can achieve a rapid deep curing effect with the help of the dehydration synergistic effect of Burgess reagent.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fast-curing two-component condensation-dealcoholization type silicone adhesive, characterized in that, The silicone sealant is composed of component A and component B in a volume ratio of (10-4):1; Based on component A, its mass percentage composition includes: Hydroxy-hydroxy silicone oil or alkoxy silicone oil 40-60%; Packing material A: 30-60%; Crosslinking agent 0.5-3%; Coupling agent 0.5-3%; Catalyst 0.05-0.5%; Based on component B, its mass percentage composition includes: Inert silicone oil 40-60%; Burgess reagent 5-10%; Filler B 30-50%; The filler A and filler B are selected from one or more of the following: silica powder, alumina, aluminum hydroxide, calcium carbonate, and fumed silica.

2. The rapid-curing two-component condensation-dealcoholization type silicone sealant according to claim 1, characterized in that, The hydroxyl silicone oil or alkoxy silicone oil has a viscosity of 50-60000 cP.

3. The rapid-curing two-component condensation-dealcoholization type silicone sealant according to claim 1, characterized in that, The hydroxyl silicone oil is selected from dimethyl hydroxyl silicone oil with a viscosity of 50-50000 cP.

4. The rapid-curing two-component condensation-dealcoholization type silicone sealant according to claim 1, characterized in that, The alkoxy silicone oil has a viscosity of 150-60000 cP and is selected from one or more of monoalkoxy-terminated silicone oil, dialkoxy-terminated silicone oil, and trialkoxy-terminated silicone oil.

5. The rapid-curing two-component condensation-dealcoholization type silicone sealant according to claim 1, characterized in that, The inert silicone oil is selected from one or more of methyl silicone oil, phenyl silicone oil, polyether silicone oil, long-chain alkyl silicone oil, trifluoropropyl silicone oil, and ethyl silicone oil.

6. The rapid-curing two-component condensation-dealcoholization type silicone sealant according to claim 1, characterized in that, The packing material A and packing material B can be the same or different.

7. The rapid-curing two-component condensation-dealcoholization type silicone sealant according to claim 1, characterized in that, The crosslinking agent is selected from alkoxysilane crosslinking agents; and / or The coupling agent is selected from one or more of silane coupling agents, titanate coupling agents, zirconate coupling agents, and aluminate coupling agents; and / or The catalyst is selected from organotin catalysts.

8. The rapid-curing two-component condensation-dealcoholization type silicone sealant according to claim 7, characterized in that, The crosslinking agent is selected from one or more of methyltrimethoxysilane, vinyltrimethoxysilane, methyltriethoxysilane, and vinyltriethoxysilane.

9. The rapid-curing two-component condensation-dealcoholization type silicone sealant according to claim 7, characterized in that, The catalyst is selected from one or more of dibutyltin acetate, dibutyltin dilaurate, dioctyltin dilaurate, di(dodecylthio)dibutyltin, dibutyltin maleate, stannous octoate, and dioctyldineodecanotin oxide.

10. A method for preparing a rapid-curing two-component condensation-dealcoholization type silicone sealant according to any one of claims 1-9, characterized in that the step... include: (1) Hydroxy silicone oil or alkoxy silicone oil and filler A are heated and stirred evenly under vacuum. Then, the mixture is cooled, replaced with N2, and then crosslinking agent, coupling agent and catalyst are added. The mixture is stirred evenly under vacuum to obtain component A. (2) The inert silicone oil and filler B were heated and stirred under vacuum until homogeneous. Then the mixture was cooled, replaced with N2, and Burgess reagent was added. The mixture was stirred under vacuum until homogeneous to obtain component B.

11. The preparation method according to claim 10, characterized in that, After obtaining components A and B, they were respectively packaged into KIT tubes with a volume ratio of (4-10):1 and sealed for storage.

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