A high-toughness UV curing adhesive and its application in polyvinyl chloride and silicone rubber

Abstract

The present invention belongs to the technical field of adhesives, and discloses a high-toughness UV curing adhesive and its application in polyvinyl chloride and silicone rubber, including 100 parts by weight of polyurethane acrylate emulsion, 1-8 parts by weight of terminal olefinic silicone polyaryletherketone, 6-10 parts by weight of active diluent, and 3.2-4 parts by weight of photoinitiator; the present invention uses polyurethane acrylate as the matrix of UV curing adhesive, and the terminal position of the added terminal olefinic silicone polyaryletherketone contains alkenyl, which, under the action of the photoinitiator, undergoes a photocuring cross-linking reaction with polyurethane acrylate, plays a good toughening and modification role, and improves the elongation at break and toughness of the polyurethane adhesive film. The peel strength and bonding performance between the UV curing adhesive and polyvinyl chloride are excellent, and the addition of terminal olefinic silicone polyaryletherketone improves the T peel strength and bonding performance between the UV curing adhesive and silicone rubber.

Description

Technical Field

[0001] The invention belongs to the technical field of adhesives, and in particular relates to a high-toughness UV curing adhesive and its application in polyvinyl chloride and silicone rubber. Background Art

[0002] Polyurethane adhesives have good bonding properties, mechanical properties and other properties, and are widely used in medical devices, electronic appliances, furniture equipment, etc. Among them, UV-curing polyurethane has a fast curing speed and is green and environmentally friendly, which is the current development trend of polyurethane adhesives. Improving the toughness and high temperature resistance of UV-curing polyurethane adhesives and improving their bonding properties with polymer materials such as polyvinyl chloride and silicone rubber has important applications.

[0003] Modifying polyurethane with silicone can effectively improve the toughness, heat resistance, water resistance and other properties of polyurethane adhesives. Polyaryletherketone is a type of high-molecular-weight polymer with high temperature resistance. Modifying polyurethane with polyaryletherketone is an effective method to improve its comprehensive performance. Patent CN109438658B discloses a polyaryletherketone-modified waterborne polyurethane resin, which prepares linear low-molecular-weight hydroxyl-terminated polyaryletherketone and chemically modifies polyurethane emulsion, which has the advantages of good chemical stability, excellent mechanical properties, and good solvent resistance. However, this patent does not improve the toughness and high temperature resistance of polyurethane. Summary of the invention

[0004] The invention solves the problems that the UV curing polyurethane adhesive has poor high temperature resistance and poor bonding performance with polyvinyl chloride and silicone rubber.

[0005] The technical solution provided by the present invention is: a high-toughness UV curing adhesive, comprising 100 parts by weight of polyurethane acrylate emulsion, 1-8 parts by weight of terminal olefin silicone polyaryletherketone, 6-10 parts by weight of active diluent, 3.2-4 parts by weight of photoinitiator, 0.4-0.8 parts by weight of defoamer, and 0.2-0.6 parts by weight of leveling agent.

[0006] The preparation method of terminal olefin-based organosilicon polyaryletherketone is as follows:

[0007] Add N-methylpyrrolidone, toluene, fluorophenyl-terminated polysiloxane, diphenol monomer and potassium carbonate into a reaction container, introduce nitrogen, heat to 140-150°C for azeotropic dehydration for 2-3 hours, and then carry out polycondensation reaction, then add 4-chlorostyrene for end-capping treatment, add hydrochloric acid solution after cooling, precipitate, filter, wash with ethanol, and dry to obtain terminal olefin-based organosilicon polyaryletherketone.

[0008] Furthermore, the molar ratio of fluorophenyl-terminated polysiloxane, diphenol monomer, potassium carbonate and 4-chlorostyrene is 1:(1.08-1.15):(2.2-2.5):(0.12-0.18).

[0009] Furthermore, the diphenol monomer is hydroquinone, bisphenol A or 4,4'-dihydroxydiphenyl ether.

[0010] Furthermore, the polycondensation reaction temperature is 175-185°C, the time is 6-10 hours, and the end-capping treatment time is 1-1.5 hours.

[0011] Furthermore, the active diluent is trimethylolpropane triacrylate or 1,6-hexanediol diacrylate; and the photoinitiator is photoinitiator 1173.

[0012] Further, the preparation method of fluorophenyl-terminated polysiloxane is:

[0013] (1) In an ice water bath, dichloromethane, 4-fluoro-4'-hydroxybenzophenone, acryloyl chloride, and triethylamine in a molar ratio of 1:(1-1.1):(1-1.1) are added to a reaction vessel, followed by reaction at 20-30° C. for 4-6 hours. The solution is concentrated under reduced pressure, and the product is recrystallized from ethyl acetate to obtain 4-fluoro-4'-acryloyloxybenzophenone.

[0014] (2) Toluene, hydrogen-terminated polydimethylsiloxane and 4-fluoro-4'-acryloxybenzophenone in a molar ratio of 1:(2.2-2.4) are added to a reaction vessel, an isopropanol solution of chloroplatinic acid is added dropwise, nitrogen is introduced, the reaction is heated to 85-90° C., the reaction is carried out for 3-4 hours, the solution is concentrated under reduced pressure, and dried to obtain fluorophenyl-terminated polysiloxane.

[0015] Furthermore, the preparation method of the polyurethane acrylate emulsion is: add dried and dehydrated polyoxypropylene glycol and toluene-2,4-diisocyanate to a reaction container, heat to 65-75°C, react for 2-3 hours, add 2,2-dihydroxymethylpropionic acid and dibutyltin dilaurate, react for 30-60 minutes, then add acetone and hydroxyethyl acrylate, react for 4-5 hours, add triethylamine for neutralization, and finally add water for stirring and dispersion to obtain the polyurethane acrylate emulsion.

[0016] Furthermore, high toughness UV curing adhesive is used in polyvinyl chloride and silicone rubber.

[0017] The technical effect of the present invention is as follows: the present invention utilizes the alkenyl group of 4-fluoro-4'-acryloxybenzophenone to carry out a hydrosilylation reaction with hydrogen-terminated polydimethylsiloxane, initiates a fluorophenyl group at the chain end of the polysiloxane, and then carries out a condensation reaction with a diphenol monomer such as bisphenol A, and then uses 4-chlorostyrene for terminal blocking to obtain an alkenyl-terminated organosilicon polyaryletherketone.

[0018] The present invention uses polyurethane acrylate as the matrix of UV curing adhesive, and the added terminal olefinic organosilicon polyaryletherketone contains olefinic groups at the end. Under the action of a photoinitiator, a photocuring crosslinking reaction occurs with the polyurethane acrylate, and the two form a chemical bond, thereby enhancing the interface bonding force between the two. At the same time, the main chain of the terminal olefinic organosilicon polyaryletherketone contains a flexible polysiloxane segment, so that the terminal olefinic organosilicon polyaryletherketone plays a good toughening and modification role, thereby improving the elongation at break and toughness of the polyurethane adhesive film.

[0019] The terminal olefin-based organosilicon polyaryletherketone of the present invention contains a rigid polyaryletherketone structure, has high strength and high temperature resistance, and polysiloxane also has good high temperature resistance. The polyaryletherketone and polysiloxane molecular chains are bonded to the polyurethane curing system, and the three form a high temperature resistant cured cross-linking network, which significantly increases the thermal decomposition temperature of the film and exhibits good heat resistance.

[0020] The polyurethane acrylate UV curing adhesive of the present invention has excellent peeling strength and bonding performance with polyvinyl chloride, and the end-olefin organic silicon polyaryletherketone is added, which contains polysiloxane chain segments and has good affinity with the polysiloxane molecular chains in silicone rubber, can improve the affinity and bonding strength between the UV curing adhesive and the silicone rubber, and improve the T peeling strength and bonding performance between the UV curing adhesive and the silicone rubber. It has good practical application in the bonding of materials such as polyvinyl chloride and silicone rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the reaction formula for preparing 4-fluoro-4'-acryloyloxybenzophenone.

[0022] Figure 2 It is the reaction formula for preparing fluorophenyl-terminated polysiloxane.

[0023] Figure 3 This is the reaction formula for preparing terminal olefin-based organosilicon polyaryletherketone. DETAILED DESCRIPTION

[0024] Preparation method of terminal olefin-containing organosilicon polyaryletherketone:

[0025] (1) In an ice water bath, dichloromethane, 4-fluoro-4'-hydroxybenzophenone, acryloyl chloride, and triethylamine in a molar ratio of 1:(1-1.1):(1-1.1) are added to a reaction vessel, followed by reaction at 20-30° C. for 4-6 hours. The solution is concentrated under reduced pressure, and the product is recrystallized from ethyl acetate to obtain 4-fluoro-4'-acryloyloxybenzophenone.

[0026] (2) Toluene, hydrogen-terminated polydimethylsiloxane and 4-fluoro-4'-acryloxybenzophenone in a molar ratio of 1:(2.2-2.4) are added to a reaction vessel, an isopropanol solution of chloroplatinic acid is added dropwise, nitrogen is introduced, the reaction is heated to 85-90° C., the reaction is carried out for 3-4 hours, the solution is concentrated under reduced pressure, and dried to obtain fluorophenyl-terminated polysiloxane.

[0027] (3) Add N-methylpyrrolidone, toluene, fluorophenyl-terminated polysiloxane, diphenol monomer, and potassium carbonate to a reaction container, introduce nitrogen, heat to 140-150° C. for azeotropic dehydration for 2-3 hours, then heat to 175-185° C. for polycondensation for 6-10 hours, then add 4-chlorostyrene for end-capping treatment for 1-1.5 hours, wherein the molar ratio of fluorophenyl-terminated polysiloxane, diphenol monomer, potassium carbonate, and 4-chlorostyrene is 1:(1.08-1.15):(2.2-2.5):(0.12-0.18); the diphenol monomer is hydroquinone, bisphenol A or 4,4'-dihydroxydiphenyl ether, and after cooling, add hydrochloric acid solution to precipitate the precipitate, filter, wash with ethanol, and dry to obtain terminal olefin-based organosilicon polyaryletherketone.

[0028] The preparation method of the polyurethane acrylate emulsion is as follows: add dried and dehydrated polyoxypropylene glycol and toluene-2,4-diisocyanate into a reaction container, heat to 65-75°C, react for 2-3 hours, add 2,2-dihydroxymethylpropionic acid and dibutyltin dilaurate, react for 30-60 minutes, then add acetone and hydroxyethyl acrylate, react for 4-5 hours, add triethylamine for neutralization, and finally add water for stirring and dispersion to obtain the polyurethane acrylate emulsion.

[0029] The preparation method of high-toughness UV curing adhesive is as follows: 100 parts by weight of polyurethane acrylate emulsion, 1-8 parts by weight of terminal olefin silicone polyaryletherketone, 6-10 parts by weight of active diluent trimethylolpropane triacrylate or 1,6-hexanediol diacrylate, 3.2-4 parts by weight of photoinitiator photoinitiator 1173, 0.4-0.8 parts by weight of defoaming agent (model XYS-9212), and 0.2-0.6 g of leveling agent (model BYK-UV3500) are added into a container, and the mixture is stirred and mixed to obtain high-toughness UV curing adhesive.

[0030] Example 1

[0031] (1) In an ice water bath, 12 mL of dichloromethane, 4 mmol of 4-fluoro-4'-hydroxybenzophenone, 4 mmol of acryloyl chloride, and 4 mmol of triethylamine were added to a reaction vessel, followed by reaction at 20° C. for 6 h. The solution was concentrated under reduced pressure, and the product was recrystallized from ethyl acetate to obtain 4-fluoro-4'-acryloyloxybenzophenone.

[0032] (2) 15 mL of toluene, 5 mmol of hydrogen-terminated polydimethylsiloxane, and 11 mmol of 4-fluoro-4'-acryloxybenzophenone were added to a reaction vessel, and an isopropanol solution (2.5 uL) containing 0.08 mg of chloroplatinic acid was added dropwise. Nitrogen was introduced, and the mixture was heated to 90° C. and reacted for 3 h. The solution was concentrated under reduced pressure and dried to obtain fluorophenyl-terminated polysiloxane.

[0033] (3) Add 20 mL of N-methylpyrrolidone, 10 mL of toluene, 10 mmol of fluorophenyl-terminated polysiloxane, 10.8 mmol of bisphenol A, and 22 mmol of potassium carbonate into a reaction container, introduce nitrogen, heat to 140° C. for azeotropic dehydration for 3 h, then heat to 185° C. for polycondensation for 6 h, then add 1.2 mmol of 4-chlorostyrene and perform end-capping treatment for 1 h; after cooling, add hydrochloric acid solution to precipitate the precipitate, filter, wash with ethanol, and dry to obtain terminal olefin-based organosilicon polyaryletherketone.

[0034] (4) Add 50 mmol of dried and dehydrated polyoxypropylene glycol (molecular weight 2000) and 135 mmol of toluene-2,4-diisocyanate to a reaction container, heat to 75°C, react for 2 h, add 63 mmol of 2,2-dihydroxymethylpropionic acid and 0.7 g of dibutyltin dilaurate, react for 60 min, lower the temperature to 45°C, add 20 mL of acetone and 5 mmol of hydroxyethyl acrylate, react for 5 h, add 68 mmol of triethylamine for neutralization, and finally add 50 mL of water for stirring and dispersion to obtain a polyurethane acrylate emulsion.

[0035] (5) Add 100 g of polyurethane acrylate emulsion, 1 g of terminal olefin silicone polyaryletherketone, 10 g of active diluent trimethylolpropane triacrylate, 4 g of photoinitiator photoinitiator 1173, 0.8 g of defoamer (model XYS-9212), and 0.2 g of leveling agent (model BYK-UV3500) into a container, stir and mix well to obtain a high-toughness UV-curing adhesive.

[0036] Example 2

[0037] (1) Add 20 mL of N-methylpyrrolidone, 10 mL of toluene, 10 mmol of fluorophenyl-terminated polysiloxane (prepared according to the method of Example 1), 11.5 mmol of hydroquinone, and 25 mmol of potassium carbonate into a reaction container, introduce nitrogen, heat to 150° C. for azeotropic dehydration for 2 h, then heat to 185° C. for polycondensation for 8 h, then add 1.8 mmol of 4-chlorostyrene, and perform end-capping treatment for 1.5 h; after cooling, add hydrochloric acid solution to precipitate the precipitate, filter, wash with ethanol, and dry to obtain terminal olefin-based organosilicon polyaryletherketone.

[0038] (2) Add 100 g of polyurethane acrylate emulsion (prepared according to the method of Example 1), 4 g of terminal olefinic silicone polyaryletherketone, 6 g of active diluent 1,6-hexanediol diacrylate, 3.2 g of photoinitiator photoinitiator 1173, 0.8 g of defoamer (model XYS-9212), and 0.3 g of leveling agent (model BYK-UV3500) into a container, stir and mix to obtain a high-toughness UV-curing adhesive.

[0039] Example 3

[0040] (1) 20 mL of N-methylpyrrolidone, 10 mL of toluene, 10 mmol of fluorophenyl-terminated polysiloxane (prepared according to the method of Example 1), 11 mmol of 4,4'-dihydroxydiphenyl ether, and 23 mmol of potassium carbonate were added to a reaction container, nitrogen was introduced, and the mixture was heated to 140° C. for azeotropic dehydration for 3 h, and then heated to 175° C. for polycondensation for 10 h, and then 1.5 mmol of 4-chlorostyrene was added for end-capping treatment for 1.5 h; after cooling, hydrochloric acid solution was added to precipitate the precipitate, which was filtered, washed with ethanol, and dried to obtain terminal olefin-based organosilicon polyaryletherketone.

[0041] (2) Add 100 g of polyurethane acrylate emulsion (prepared according to the method of Example 1), 8 g of terminal olefinic silicone polyaryletherketone, 8 g of active diluent trimethylolpropane triacrylate, 3.7 g of photoinitiator photoinitiator 1173, 0.4 g of defoamer (model XYS-9212), and 0.6 g of leveling agent (model BYK-UV3500) into a container, stir and mix to obtain a high-toughness UV-curing adhesive.

[0042] Comparative Example 1

[0043] (1) Add 100 g of polyurethane acrylate emulsion (prepared according to the method of Example 1), 10 g of active diluent trimethylolpropane triacrylate, 4 g of photoinitiator photoinitiator 1173, 0.8 g of defoamer (model XYS-9212), and 0.2 g of leveling agent (model BYK-UV3500) into a container, stir and mix to obtain a high-toughness UV-curing adhesive.

[0044] Comparative Example 2

[0045] (1) Add 100 g of polyurethane acrylate emulsion (prepared according to the method of Example 1), 1 g of hydrogen-terminated polydimethylsiloxane, 10 g of active diluent trimethylolpropane triacrylate, 4 g of photoinitiator photoinitiator 1173, 0.8 g of defoamer (model XYS-9212), and 0.2 g of leveling agent (model BYK-UV3500) into a container, stir and mix to obtain a high-toughness UV-curing adhesive.

[0046] Comparative Example 3

[0047] (1) 20 mL of N-methylpyrrolidone, 10 mL of toluene, 10 mmol of fluorophenyl-terminated polysiloxane (prepared according to the method of Example 1), 10.8 mmol of bisphenol A, and 22 mmol of potassium carbonate were added to a reaction container, nitrogen was introduced, and the mixture was heated to 140° C. for azeotropic dehydration for 3 h, and then heated to 185° C. for polycondensation for 6 h. After cooling, hydrochloric acid solution was added to precipitate, the precipitate was filtered, washed with ethanol, and dried to obtain an organosilicon polyaryletherketone.

[0048] (2) Add 100 g of polyurethane acrylate emulsion (prepared according to the method of Example 1), 1 g of silicone polyaryletherketone, 10 g of active diluent trimethylolpropane triacrylate, 4 g of photoinitiator photoinitiator 1173, 0.8 g of defoamer (model XYS-9212), and 0.2 g of leveling agent (model BYK-UV3500) into a container, stir and mix to obtain a high-toughness UV-curing adhesive.

[0049] Comparative Example 4

[0050] (1) Add 20 mL of N-methylpyrrolidone, 10 mL of toluene, 10 mmol of 4,4'-difluorobenzophenone, 10.8 mmol of bisphenol A, and 22 mmol of potassium carbonate to a reaction container, introduce nitrogen, heat to 140° C. for azeotropic dehydration for 3 h, then heat to 185° C. for polycondensation for 6 h, then add 1.2 mmol of 4-chlorostyrene, and perform end-capping treatment for 1 h; after cooling, add hydrochloric acid solution to precipitate, filter, wash with ethanol, and dry to obtain terminal olefin polyaryletherketone.

[0051] (2) Add 100 g of polyurethane acrylate emulsion (prepared according to the method of Example 1), 1 g of terminal olefin polyarylether ketone, 10 g of active diluent trimethylolpropane triacrylate, 4 g of photoinitiator photoinitiator 1173, 0.8 g of defoamer (model XYS-9212), and 0.2 g of leveling agent (model BYK-UV3500) into a container, stir and mix to obtain a high-toughness UV-curing adhesive.

[0052] Pour the high-toughness UV curing adhesive into the mold and irradiate it in a 2kW UV curing machine for 60 seconds to obtain a cured adhesive film. Treat the cured adhesive film in a blast drying oven at 50°C for 6 hours and perform a tensile property test according to the method of GB / T 1040.1-2018.

[0053] 5 mg of the cured film was weighed and thermal properties were tested in a thermogravimetric analyzer in a nitrogen atmosphere with a heating rate of 20°C / min and a test temperature ranging from room temperature to 700°C.

[0054] Table 1 UV curing adhesive performance test

[0055]

[0056] As can be seen from Table 1, the tensile strength of the polyurethane UV curing adhesive of Examples 1, 2, and 3 reaches 15.3-19.4 MPa, the elongation at break reaches 31.0-46.9%, the initial thermal decomposition temperature reaches 313.5-320.6°C, and the maximum thermal decomposition rate temperature reaches 398.2-405.8°C, which are significantly higher than those of Comparative Example 1, showing good strength, toughness and heat resistance. This is because the polyurethane UV curing adhesives of Examples 1, 2, and 3 are all added with terminal olefinic silicone polyaryletherketone, which contains olefinic groups at the terminal positions. Under the action of the photoinitiator, a photocuring cross-linking reaction occurs with the polyurethane acrylate, and the two form a chemical bonding effect, thereby enhancing the interfacial bonding force between the two. At the same time, the main chain of the terminal olefinic silicone polyaryletherketone contains a flexible polysiloxane chain segment, so that the terminal olefinic silicone polyaryletherketone plays a good toughening and modification role, thereby improving the elongation at break and toughness of the polyurethane film. In addition, the silicone polyaryletherketone contains a rigid polyaryletherketone structure, which has high strength and strong high temperature resistance. At the same time, polysiloxane also has good high temperature resistance. The polyaryletherketone and polysiloxane molecular chains are bonded to the polyurethane curing system, and the three form a high temperature resistant curing cross-linking network, which significantly improves the thermal decomposition temperature of the film and exhibits good heat resistance.

[0057] The hydrogen-terminated polydimethylsiloxane added in Comparative Example 2 does not contain alkenyl groups and cannot undergo a photocuring crosslinking reaction with polyurethane acrylate. The interfacial compatibility between the two is poor, the elongation at break is low, and the toughening effect on the polyurethane film is not good.

[0058] The organosilicon polyaryletherketone added in Comparative Example 3 does not contain terminal olefin groups and cannot undergo photocuring crosslinking reaction with polyurethane acrylate. The interfacial compatibility between the two is poor, the elongation at break is low, and the toughening effect on the polyurethane film is not good.

[0059] The terminal olefin polyaryletherketone of Comparative Example 4 does not contain a flexible polysiloxane molecular chain, has a poor toughening effect on the polyurethane film, and has a low elongation at break. However, the tensile strength and thermal decomposition temperature of the polyurethane film are significantly improved.

[0060] Apply high-toughness UV curing adhesive to the surface of PVC substrate, with an application amount of 120g / m 2 The polyester base fabric was laminated on the UV curing adhesive, irradiated in a 2kW UV curing machine for 60s, and then treated in a blast drying oven at 50°C for 6h. The T peel strength was tested using a tensile testing machine with a tensile rate of 100mm / min.

[0061] Apply high-toughness UV curing adhesive to the surface of the silicone rubber substrate with an application amount of 120g / m 2The polyester base fabric was laminated on the UV curing adhesive, irradiated in a 2kW UV curing machine for 60s, and then treated in a blast drying oven at 50°C for 6h. The T peel strength was tested using a tensile testing machine with a tensile rate of 100mm / min.

[0062] Table 2 UV curing adhesive T peel strength test

[0063]

[0064]

[0065] The polyurethane acrylate UV curing adhesive of the present invention has a T peel strength of 27-30N / 25mm for polyvinyl chloride, and has excellent bonding performance. In addition, terminal olefinic silicone polyaryletherketone is added to the UV curing adhesive, which contains polysiloxane chain segments and has good affinity with the polysiloxane molecular chains in silicone rubber, which is beneficial to improving the affinity and bonding strength between the UV curing adhesive and the silicone rubber, thereby improving the T peel strength and bonding performance between the UV curing adhesive and the silicone rubber, reaching 32-37N / 25mm.

Claims

1. A high-toughness UV curing adhesive, characterized in that: The high-toughness UV curing adhesive comprises 100 parts by weight of polyurethane acrylate emulsion, 1-8 parts by weight of terminal olefin-based organosilicon polyaryletherketone, 6-10 parts by weight of active diluent, 3.2-4 parts by weight of photoinitiator, 0.4-0.8 parts by weight of defoamer, and 0.2-0.6 parts by weight of leveling agent; The preparation method of the terminal olefin-based organosilicon polyaryletherketone is as follows: Add N-methylpyrrolidone, toluene, fluorophenyl-terminated polysiloxane, diphenol monomer, and potassium carbonate into a reaction container, introduce nitrogen, heat for azeotropic dehydration, and then perform polycondensation reaction, then add 4-chlorostyrene for end-capping treatment, add hydrochloric acid solution after cooling, precipitate, filter, wash, and dry to obtain terminal olefin-based organosilicon polyaryletherketone; The diphenol monomer is hydroquinone, bisphenol A or 4,4'-dihydroxydiphenyl ether; The preparation method of the fluorophenyl-terminated polysiloxane is: (1) In an ice water bath, dichloromethane, 4-fluoro-4'-hydroxybenzophenone, acryloyl chloride, and triethylamine are added to a reaction vessel, followed by reaction at 20-30° C. for 4-6 hours, and the solution is concentrated under reduced pressure and recrystallized to obtain 4-fluoro-4'-acryloyloxybenzophenone; (2) adding toluene, hydrogen-terminated polydimethylsiloxane, 4-fluoro-4'-acryloxybenzophenone, and an isopropanol solution of chloroplatinic acid into a reaction vessel, introducing nitrogen, heating to 85-90° C., reacting for 3-4 hours, concentrating the solution under reduced pressure, and drying to obtain fluorophenyl-terminated polysiloxane; In said (1), the molar ratio of 4-fluoro-4'-hydroxybenzophenone, acryloyl chloride and triethylamine is 1:(1-1.1):(1-1.1); In the above (2), the molar ratio of hydrogen-terminated polydimethylsiloxane to 4-fluoro-4'-acryloxybenzophenone is 1:(2.2-2.4).

2. The high-toughness UV curing adhesive according to claim 1, characterized in that: In the preparation method of the terminal olefin-based organosilicon polyaryletherketone, the molar ratio of fluorophenyl-terminated polysiloxane, diphenol monomer, potassium carbonate and 4-chlorostyrene is 1:(1.08-1.15):(2.2-2.5):(0.12-0.18).

3. The high-toughness UV curing adhesive according to claim 1, characterized in that: The temperature of the polycondensation reaction is 175-185° C., and the time is 6-10 hours; the time of the end-capping treatment is 1-1.5 hours.

4. The high-toughness UV curing adhesive according to claim 1, characterized in that: The active diluent is trimethylolpropane triacrylate or 1,6-hexanediol diacrylate; the photoinitiator is photoinitiator 1173.

5. The high-toughness UV curing adhesive according to claim 1, characterized in that: The preparation method of the polyurethane acrylate emulsion is as follows: adding dried and dehydrated polyoxypropylene glycol and toluene-2,4-diisocyanate into a reaction container, heating to 65-75° C., reacting for 2-3 hours, adding 2,2-dihydroxymethylpropionic acid and dibutyltin dilaurate, reacting for 30-60 minutes, then adding acetone and hydroxyethyl acrylate, reacting for 4-5 hours, adding triethylamine for neutralization, and finally adding water for stirring and dispersion to obtain the polyurethane acrylate emulsion.

6. Use of the high-toughness UV curing adhesive as claimed in any one of claims 1 to 5 in polyvinyl chloride and silicone rubber.

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