Fast-curing two-component condensation dealcoholization type silicone adhesive and preparation method thereof

Abstract

The invention relates to a fast-curing bi-component condensation dealcoholization type silicone adhesive and a preparation method thereof. The fast-curing bi-component condensation dealcoholization type silicone adhesive is prepared from a component A and a component B, wherein the component A comprises hydroxyl silicone oil or alkoxy silicone oil, filler A, a cross-linking agent, a coupling agent and a catalyst; the component B is prepared from inert silicone oil, a Burge reagent (N-(triethyl ammonium sulfonyl) methyl carbamate) and a filler B. In the curing process of the adhesive, the organic silicon condensation dealcoholization vulcanization reaction and the Burge reagent are used as dehydrating agents for alcohol dehydration alkene reaction to achieve a synergistic catalysis effect, room-temperature rapid deep curing of the dealcoholization type organic silicon adhesive is finally achieved, and the curing depth of an adhesive layer within 4 hours can be larger than or equal to 20 mm; the adhesive is suitable for application scenes requiring room-temperature rapid curing or deep encapsulation and the like, and the production efficiency can be remarkably improved.

Description

Technical Field

[0001] The invention relates to a two-component condensation dealcoholization silicone adhesive capable of rapid and deep curing at room temperature, belonging to the field of organic silicone adhesives. Background Art

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

[0003] Condensation dealcoholization silicone glue is usually hydroxyl silicone oil or alkoxy silicone oil and alkoxysilane crosslinker vulcanized under the action of catalyst to release alcohol small molecules. Compared with deoxime type and deacidification type silicone glue, it has better environmental protection, so it is more widely used in electronics, engineering, new energy and other fields with higher environmental protection requirements. The curing process of dealcoholization silicone needs to react 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 inner glue layer can be surface dried in 5-30min, and the initial curing of the glue layer with a thickness of 0.1-2mm can be achieved within 24h. However, with the increase of curing depth and crosslinking density, the speed at which the moisture required for the condensation reaction migrates from the surface to the inside will become slower and slower, and the curing depth of more than 10mm often requires more than a week. This shortcoming makes it unable to meet the needs of glue points with rapid bonding positioning and deep potting, such as consumer electronics, new energy vehicles, electronic packaging and other fields that emphasize production efficiency, which will seriously affect the customer's work rhythm.

[0004] In previous patent reports such as CN1639219A and CN111057517A, silicone oil modification or compounding of multiple silanes was used to improve the curing speed of dealcoholized silicone adhesives, but the overall improvement effect was limited and could not meet the requirements of deep curing in a short time (4h≥20mm).

[0005] Therefore, the rapid curing of dealcoholized silicone adhesive at room temperature is an industry problem that needs to be solved urgently and has high commercial value. Summary of the invention

[0006] In view of the fact that current condensation-type silicone adhesives cannot achieve rapid and deep curing, the present invention develops a rapid-curing two-component condensation dealcoholization-type silicone adhesive and a preparation method thereof. By introducing Burgess reagent (i.e., methyl N-(triethylammoniumsulfonyl)carbamate) as a dehydrating agent for the alcohol dehydration reaction to olefins into the condensation dealcoholization-type silicone adhesive reaction, the synergistic promotion of the two can achieve the effect of rapid and deep curing at room temperature.

[0007] The purpose of the present invention is achieved through the following technical solutions:

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

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

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

[0011] Filler A 30-60%;

[0012] Crosslinking agent 0.5-3%;

[0013] Coupling agent 0.5-3%;

[0014] Catalyst 0.05-0.5%;

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

[0016] Inert silicone oil 40-60%;

[0017] Burgess reagent 5-10%;

[0018] Filler B 30-50%.

[0019] In detail, in the silicone glue, the volume ratio of component A to component B includes but is not limited to 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 a range between any two of them.

[0020] In detail, the mass percentage composition of component A includes: the hydroxy silicone oil or alkoxy silicone oil includes but is not limited to 40%, 42%, 45%, 48%, 50%, 53%, 55%, 58%, 60% or the range between any two thereof; the filler A includes but is not limited to 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48%, 50%, 53%, 55%, 58%, 60% or the range between any two thereof; the cross-linking agent includes but is not limited to 0.5%, 0.8%, 1.0%, 1.2%, 1.5%, 1. 8%, 2.0%, 2.2%, 2.5%, 2.8%, 3.0% or any range therebetween; the coupling agent includes but is not limited to 0.5%, 0.8%, 1.0%, 1.2%, 1.5%, 1.8%, 2.0%, 2.2%, 2.5%, 2.8%, 3.0% or any range therebetween; the catalyst includes but is not limited to 0.05%, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5% or any range therebetween.

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

[0022] In the component B of the present invention, the Burgess reagent is an inner salt of a carbamate, specifically N-(triethylammoniumsulfonyl)methyl carbamate. The alcohol dehydration reaction to olefins and the organosilicon condensation dealcoholization vulcanization reaction in which the Burgess reagent participates can play a synergistic catalytic effect. The Burgess reagent acts as a dehydrating agent to achieve intramolecular or intermolecular dehydration of secondary and tertiary alcohols under mild room temperature and neutral conditions, and the desorbed water can be used as an accelerator for the organosilicon dealcoholization vulcanization reaction to achieve rapid curing; specifically, hydroxyl silicone oil or alkoxy silicone oil and a crosslinking agent are subjected to organosilicon condensation dealcoholization vulcanization under the action of a catalyst, and the released small molecule alcohols (X-CH2OH) are captured by the Burgess reagent and can participate in the reaction of alcohol dehydration to olefins. The water generated by the alcohol dehydration to olefins promotes the vulcanization reaction of the hydroxyl silicone oil or alkoxy silicone oil and the crosslinking agent, and finally achieves the effect of rapid deep curing. The route is shown as follows:

[0023]

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

[0025] Specifically, the hydroxy silicone oil is selected from dimethyl hydroxy silicone oil (107 silicone oil) with a viscosity of 50-50000 cP, including but not limited to a viscosity 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 a range between any two thereof; for example, 107 silicone oil with a viscosity of 1500 cp, 5000 cp, 10000 cp, 20000 cp, or 50000 cp;

[0026] Specifically, the alkoxy silicone oil has a viscosity of 150-60000 cP, including but not limited to a viscosity 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 a range between any two of them; selected from one or more of monoalkoxy terminated silicone oil, dialkoxy terminated silicone oil, trialkoxy terminated silicone oil, etc., preferably one or more of dialkoxy terminated silicone oil and trialkoxy terminated silicone oil; for example, one or more of dialkoxy terminated silicone oil and trialkoxy terminated silicone oil with a viscosity of 1500 cp, 10000 cp, 20000 cp.

[0027] In one embodiment, the inert silicone oil refers to a silicone oil whose end-capping group is an inert group and does not participate in chemical reactions during use, and 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., preferably one or more of methyl silicone oil, phenyl silicone oil, and ethyl silicone oil.

[0028] In one embodiment, the filler A and filler B are selected from one or more of silicon powder, aluminum oxide, aluminum hydroxide, calcium carbonate, and gas silicon; the two can be the same or different. In actual production, according to different requirements, the particle size of the powder can be selected from the range of nanometer level to about 100 microns.

[0029] The fast-curing two-component condensation dealcoholized silicone adhesive of the present invention as described above, wherein component A also includes a crosslinking agent, a coupling agent, and a catalyst. These additives and auxiliary ingredients can be selected from conventional ones in 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 and the like.

[0031] In one embodiment, the coupling agent is selected from one or more of a silane coupling agent, a titanate coupling agent, a zirconate coupling agent, an aluminate coupling agent, and the like, preferably a silane coupling agent such as γ-aminopropyltriethoxysilane, γ-glycidyloxypropyltrimethoxysilane, γ-(methacryloyloxy)propyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane.

[0032] In one embodiment, the catalyst is selected from an organic tin catalyst, preferably one or more of dibutyltin acetate, dibutyltin dilaurate, dioctyltin dilaurate, di(dodecylthio)dibutyltin, dibutyltin maleate, stannous octoate, dioctyl dineodecanoyl oxide tin, and the like.

[0033] The present invention also provides a method for preparing the above-mentioned fast-curing two-component condensation dealcoholization silicone adhesive. Referring to the conventional process of two-component silicone adhesive, the formula raw materials are mixed to obtain component A and component B for standby use; then the components are mixed in proportion and cured. In one embodiment, the components A and B are prepared by the following method:

[0034] (1) Mix hydroxy silicone oil or alkoxy silicone oil and filler A under heating conditions and stir them uniformly in vacuum, then cool them down, replace them with nitrogen, add a crosslinking agent, a coupling agent, and a catalyst, and stir them uniformly in vacuum to obtain component A;

[0035] (2) The inert silicone oil and filler B are stirred uniformly under vacuum under heating conditions, then cooled, replaced with nitrogen, and Burgess reagent is added, and the mixture is stirred uniformly under vacuum to obtain component B.

[0036] In the above, some operating conditions of the preparation process are limited. For other operating and process conditions in the preparation method of the present invention, and the devices used therein, corresponding conventional selections in the art can be adopted. There are no special restrictions on this. Technicians can optimize according to actual needs based on the known processes in the prior art. In the production process, for example, the conditions listed in the following embodiments of the present invention can be adopted.

[0037] Specifically, a method for preparing a fast-curing two-component condensation dealcoholization silicone adhesive comprises the following steps:

[0038] (1) Add hydroxy silicone oil or alkoxy silicone oil and filler into a double planetary stirring kettle, stir at a speed of 10-50 rpm / min, disperse at a speed of 100-1000 rpm / min, heat to 100-150°C, keep warm, vacuum and stir for 1-5 hours, then cool to below 40°C, add crosslinking agent, coupling agent and catalyst after full N2 replacement, stir at a speed of 10-50 rpm / min, disperse at a speed of 100-1000 rpm / min, vacuum and stir for 20-60 minutes to obtain component A, which is set aside;

[0039] (2) Add inert silicone oil and filler B into a stirred kettle, heat to 100-150° C., keep warm and evacuate, stir at a speed of 10-50 rpm / min, and disperse at a speed of 100-1000 rpm / min for 1-3 hours, then cool to below 40° C., add Burgess reagent after full N2 replacement, stir at a speed of 10-50 rpm / min, and disperse at a speed of 300-1200 rpm / min, evacuate and stir for 20-60 minutes to obtain component B, and set aside;

[0040] (3) When in use, mix component A and component B in a volume ratio of (10-4):1 and apply glue to cure.

[0041] In the process of preparing component B in step (2) of the above-mentioned preparation method of the present invention, since the Burgess reagent is sensitive to water vapor and oxygen, the inert silicone oil and filler B are first premixed in the preparation process, and then the mixture is kept at 100-150° C. and evacuated to fully remove water. After sufficient N2 replacement, the Burgess reagent powder is added and dispersed, which can provide good protection for the Burgess reagent.

[0042] In actual production, after component A and component B are prepared, the silicone adhesive of the present invention can be separately packaged into KIT packaging tubes with a volume ratio of (4-10):1 and sealed for storage.

[0043] The present invention introduces Burgess reagent into the raw materials for preparing condensation-type dealcoholized silicone adhesive, which can achieve rapid deep curing of dealcoholized organic silicone adhesive at room temperature, solving the problem that traditional condensation-dealcoholized silicone adhesive cannot achieve rapid deep curing in a short time. The adhesive is suitable for application scenarios that require rapid deep curing and have good sealing and bonding requirements, and can achieve a 4h adhesive layer curing depth of ≥20mm.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] The present invention introduces Burgess reagent as a dehydrating agent for the first time to promote the reaction of alcohol dehydration to olefins, and introduces it into the condensation-type dealcoholized silicone adhesive. On the one hand, the storage stability of Burgess reagent in component B is ensured by means of water removal, deoxygenation process and the protective effect of inert silicone oil. On the other hand, when mixed and used, it can be used for silicone condensation dealcoholization vulcanization, and the Burgess reagent can be used as a dehydrating agent for the alcohol dehydration to olefin reaction to play a synergistic catalytic effect, and finally the room temperature rapid deep curing of the dealcoholized silicone adhesive is achieved, which solves the problem that the traditional condensation dealcoholized silicone adhesive cannot achieve short-term rapid deep curing, thereby expanding its potential application field. DETAILED DESCRIPTION

[0046] For ease of understanding of the present invention, preferred embodiments of the present invention are provided below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. The examples cited are only used to explain the present invention and are not used to limit the scope of the present invention.

[0047] In the embodiments and comparative examples of the present invention, the sources of the main raw materials used are as follows. Unless otherwise specified, other raw materials and reagents were purchased from commercial sources:

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

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

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

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

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

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

[0054] Silica powder: purchased from Guangzhou Yushun New Material Technology Co., Ltd.

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

[0056] Alkoxy silicone oil: 1500cp difunctional alkoxy-terminated silicone oil, purchased from Chengtian New Materials (Guangzhou) Co., Ltd.;

[0057] Dibutyltin dilaurate and dioctyl dineodecanoyl tin oxide were purchased from Changzhou Kairui Chemical Technology Co., Ltd.

[0058] Ethyl 4-(aminosulfonyl)benzoate: purchased from Shanghai Hansi Chemical Co., Ltd.

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

[0060] Example 1

[0061] 5500g of 10000cp hydroxy silicone oil, 3700g of silicon powder and 500g of gas silicon were added into a 20L double planetary stirring kettle, heated to 120°C, kept warm and vacuumed, stirred at 20rpm / min and 300rpm / min for 2h, then cooled to below 40°C, fully replaced with N2, and then 150g of methyltrimethoxysilane, 140g of γ-aminopropyltriethoxysilane and 10g of dibutyltin dilaurate were added, stirred at 30rpm / min and 500rpm / min for 30min to obtain component A;

[0062] Add 550g of 5000cP dimethyl silicone oil, 341g of silicon powder and 54g of gas silicon into a 2.5L double planetary stirring kettle, heat to 120°C, keep warm and evacuate, stir at 20rpm / min, and disperse at 300rpm / min for 2h, then cool to below 40°C, fully replace with N2, add 55g of Burgess reagent, stir at 10rpm / min, and disperse at 300rpm / min, evacuate and stir for 30min to obtain component B;

[0063] The A component and the B component were separately packed into KIT packaging tubes with a volume ratio of 10:1 and sealed for storage to obtain a fast-curing two-component condensation dealcoholization type silicone adhesive sample 1.

[0064] Example 2

[0065] 4860 g of 5000 cp hydroxy silicone oil and 4800 g of calcium carbonate were added into a 20 L double planetary stirring kettle, heated to 110 ° C, kept warm and vacuumed, stirred at a stirring speed of 10 rpm / min, and a dispersion speed of 600 rpm / min for 4 hours, then cooled to below 40 ° C, fully replaced with N2, and added with 207 g of vinyl triethoxysilane, 120 g of N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane, and 13 g of dioctyl dineodecanoyl tin oxide, stirred at a stirring speed of 20 rpm / min, and a dispersion speed of 1000 rpm / min, and vacuumed and stirred for 40 minutes to obtain component A;

[0066] Add 450g of 3000cP dimethyl silicone oil and 474g of calcium carbonate into a 2.5L double planetary stirring kettle, heat to 110°C, keep warm and evacuate, stir at a speed of 10rpm / min, and disperse at a speed of 300rpm / min for 2h, then cool to below 40°C, perform sufficient N2 replacement, add 76g of Burgess reagent, stir at a speed of 40rpm / min, and disperse at a speed of 500rpm / min, evacuate and stir for 60min to obtain component B;

[0067] The components of step A and step B were separately packed into KIT packaging tubes with a volume ratio of 6:1 and sealed for storage to obtain a fast-curing two-component condensation dealcoholization type silicone adhesive sample 2.

[0068] Example 3

[0069] 4500g of 1500cp bifunctional alkoxy-terminated silicone oil, 4100g of aluminum hydroxide and 872g of gas silicon were added into a 20L double planetary stirring kettle, heated to 150°C, kept warm and vacuumed, stirred at a speed of 50rpm / min and a dispersion speed of 1000rpm / min for 30min, then cooled to below 40°C, fully replaced with N2, and then 300g of vinyltrimethoxysilane, 220g of γ-aminopropyltriethoxysilane and 8g of dibutyltin dilaurate were added, stirred at a speed of 30rpm / min and a dispersion speed of 600rpm / min, vacuumed and stirred for 30min to obtain component A;

[0070] 560g of 1500cP dimethyl silicone oil, 256g of aluminum hydroxide and 90g of gas silicon were added into a 2.5L double planetary stirring kettle, heated to 150°C, kept warm and evacuated, stirred at a speed of 40rpm / min and a dispersion speed of 800rpm / min for 2h, then cooled to below 40°C, fully replaced with N2, added with 94g of Burgess reagent, stirred at a speed of 30rpm / min and a dispersion speed of 800rpm / min, and evacuated and stirred for 30min to obtain component B;

[0071] The components of step A and step B were separately packed into KIT packaging tubes with a volume ratio of 4:1 and sealed for storage to obtain a fast-curing two-component condensation dealcoholization type silicone adhesive sample 3.

[0072] Comparative Example 1

[0073] Referring to Example 1, the only difference is that no Burgess reagent is added to component B, and other operations and conditions remain unchanged, to obtain comparative example sample 1.

[0074] Comparative Example 2

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

[0076] Comparative Example 3

[0077] Referring to Example 1, the only difference is that the Burgess reagent in component B is replaced by an equal mass of dehydrating agent N,N-dimethylformamide diethyl acetal, and other operations and conditions remain unchanged, to obtain comparative example sample 3.

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

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

[0080] Table 1 Comparison of curing depth of two-component dealcoholized silicone adhesive

[0081]

[0082] From the comparison of the performance data of the above embodiments and comparative silicone adhesives: the deep curing speed of embodiments 1, 2, and 3 is significantly faster than that of comparative example 1 without the introduction of Burgess reagent. Embodiments 1, 2, and 3 can reach a maximum curing depth of the adhesive layer of >20 mm after 4 hours; while from comparative examples 2 and 3, replacing the 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 may be that the dehydrated structures and reaction activities of these two reagents are relatively low, and their dehydration effects require a higher temperature (>50°C) or the use of specific precious metals such as palladium catalysts to achieve a better dehydration effect. Based on the above content, it can be seen that the condensation dealcoholization type silicone adhesive can achieve the effect of rapid deep curing with the help of the dehydration synergistic effect of the 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 in the protection scope of the present invention.

Claims

1. A fast-curing two-component condensation dealcoholization silicone adhesive, characterized in that: The silicone adhesive is composed of component A and component B in a volume ratio of (10-4):1; Based on the A component, its mass percentage composition includes: Hydroxyl silicone oil or alkoxy silicone oil 40-60%; Filler A 30-60%; Crosslinking agent 0.5-3%; Coupling agent 0.5-3%; Catalyst 0.05-0.5%; Based on the B component, its mass percentage composition includes: Inert silicone oil 40-60%; Burgess reagent 5-10%; Filler B 30-50%.

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

3. The fast curing two-component condensation dealcoholization type silicone adhesive according to claim 1 or 2, characterized in that: The hydroxy silicone oil is selected from dimethyl hydroxy silicone oil with a viscosity of 50-50000 cP.

4. The fast curing two-component condensation dealcoholization type silicone adhesive according to claim 1 or 2, 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, bisalkoxy-terminated silicone oil, and trialkoxy-terminated silicone oil, preferably one or more of bisalkoxy-terminated silicone oil and trialkoxy-terminated silicone oil.

5. The fast curing two-component condensation dealcoholization type silicone adhesive 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, preferably one or more of methyl silicone oil, phenyl silicone oil, and ethyl silicone oil.

6. The fast curing two-component condensation dealcoholization type silicone adhesive according to claim 1, characterized in that: The filler A and filler B are selected from one or more of silicon powder, alumina, aluminum hydroxide, calcium carbonate, and gas silicon; the two can be the same or different.

7. The fast curing two-component condensation dealcoholization type silicone adhesive according to claim 1, characterized in that: The crosslinking agent is selected from alkoxysilane crosslinking agents, preferably one or more of methyltrimethoxysilane, vinyltrimethoxysilane, methyltriethoxysilane, vinyltriethoxysilane; 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, preferably one or more of silane coupling agents; and / or The catalyst is selected from an organic tin catalyst, preferably one or more of dibutyltin acetate, dibutyltin dilaurate, dioctyltin dilaurate, di(dodecylthio)dibutyltin, dibutyltin maleate, stannous octoate, and dioctyl dineodecanoyl oxide tin.

8. A method for preparing the fast-curing two-component condensation dealcoholization silicone adhesive according to any one of claims 1 to 7, characterized in that the steps include: (1) Mix hydroxy silicone oil or alkoxy silicone oil and filler A under heating conditions and stir them uniformly in vacuum, then cool them down, replace them with nitrogen, add a crosslinking agent, a coupling agent, and a catalyst, and stir them uniformly in vacuum to obtain component A; (2) The inert silicone oil and filler B are stirred uniformly under vacuum under heating conditions, then cooled, replaced with nitrogen, and Burgess reagent is added, and the mixture is stirred uniformly under vacuum to obtain component B.

9. The preparation method according to claim 8, characterized in that: After component A and component B are prepared, they are respectively canned into KIT packaging tubes with a volume ratio of (4-10):1 and sealed for storage.

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