Preparation method of high-oxygen-permeability tensile organosilicon polymer film

Abstract

The invention discloses a preparation method of a high-oxygen-permeability tensile organosilicon polymer film, and relates to the technical field of advanced petrochemical and chemical new materials. According to the preparation method of the high-oxygen-permeability tensile organosilicon polymer film, a content-controllable functional siloxane monomer, namely a rigid fragment, is introduced through copolymerization, a hydrophilic group is introduced under a silicon-hydrogen reaction of silicone oil H-18 and 5-ethylene-1-alcohol, octavinyl polyhedral oligomeric silsesquioxane not only can introduce holes in the film and improve the oxygen permeability of the film, but also can be used for preparing the high-oxygen-permeability tensile organosilicon polymer film. The crosslinking degree can be controlled, the effect of toughening nano particles is achieved, the mechanical strength of the film is greatly improved, through combination of rigid fragments and hydrophilic groups, the stability of the oxygen permeation rate is guaranteed, the printing speed accuracy is improved, ultra-high-speed printing is achieved, and the tensile strength of the organosilicon polymer film is improved through crosslinking degree control; and the precision of the printing process is ensured, and the service life of the film is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of advanced petrochemical new materials, and in particular to a method for preparing a highly oxygen-permeable and stretch-resistant organic silicon polymer film. Background Art

[0002] Continuous Liquid Interface Processing (CLIP) is a high-speed photosensitive resin printing technology. At present, in digital light processing (DLP) 3D printing, CLIP is mainly achieved by the anti-polymerization layer between the resin and the film. The principle of the anti-polymerization layer is that oxygen permeates the film, forming an oxygen-rich area within a few hundred microns above the film. During printing, oxygen captures the free radicals generated by light, thereby preventing polymerization from occurring in this area above the film. The film will not adhere to the photocuring layer, and finally continuous printing is achieved. Therefore, the oxygen permeability of the membrane determines the performance of this device, and the oxygen permeable membrane is also the core component of the DLP continuous page forming 3D printing device.

[0003] The oxygen permeable membrane used in the liquid surface continuous printing technology is a surface-modified polydimethylsiloxane (PDMS) composite membrane. It is necessary to import prepolymers from abroad and then perform surface modification, which is costly. In addition, the amount of groups introduced into the composite membrane through surface modification is uncontrollable, resulting in the inability to unify the oxygen permeability of each layer of the membrane, resulting in uncontrollable oxygen inhibition effect, and it is difficult to support continuous lifting liquid interface printing technology. That is, the existing composite membranes have the defects of low tensile strength, easy deformation, and fast consumption, resulting in low printing accuracy. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a method for preparing a highly oxygen-permeable and stretch-resistant organic silicon polymer film, which solves the problems of low tensile strength, easy deformation, and rapid consumption of the existing composite film, resulting in low printing accuracy.

[0005] To achieve the above objectives, the present invention is implemented by the following technical scheme: a method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, specifically comprising the following steps:

[0006] S1. Introducing hydrophilic groups into hydrogen-containing silicone oil by silicon-hydrogen reaction to obtain modified hydrogen-containing silicone oil;

[0007] S2, introducing functional siloxane monomer, end-side hydrogen-containing silicone oil and mixed rubber into vinyl silicone oil to obtain reinforced vinyl silicone oil;

[0008] S3, copolymerizing and cross-linking the modified hydrogen-containing silicone oil and the reinforced vinyl silicone oil through a silicon-hydrogen reaction to obtain an organosilicon polymer;

[0009] S4, pouring the organic silicon polymer onto the release film and coating it with a coating agent, and obtaining the organic silicon polymer film after drying.

[0010] The present invention is further configured as follows: the hydrogenated silicone oil in S1 is silicone oil H-18 with a concentration of 0.75%;

[0011] The methods for introducing hydrophilic groups into S1 include:

[0012] Add 5-vinyl-1-ol to silicone oil H-18 and stir at a speed of 500-1000 rpm at a temperature of 40°C-80°C for 0.5h-1h.

[0013] The present invention is further configured as follows: the total amount of the 5-ethylene-1-ol is 2% to 22% of the mass of the silicone oil H-18.

[0014] The present invention is further configured as follows: the functional siloxane monomer in S2 is octavinyl caged silsileoxane, the mixed rubber in S2 is silica gel, and the molecular weight is (2-20)×103 g / mol, wherein the methods of introducing vinyl silicone oil into the two include:

[0015] Add octavinyl cage siloxane and silica gel into vinyl silicone oil and stir at 500-1000 rpm for 10-20 minutes at room temperature.

[0016] Octavevinyl cage-like semisiloxane has a unique structure. Its core is a cubic silicon-oxygen skeleton, and its shell is a double bond that can undergo a silylation reaction with Si-H bonds. It can effectively increase the content of holes in the polymer system and has good compatibility with dimethylsiloxane.

[0017] The present invention is further configured as follows: the mass of the end-side hydrogenated silicone oil is 5% to 10% of the mass of the vinyl silicone oil, and the mass of the octavinyl cage-like semisiloxane and silica gel are both 5% to 25% of the mass of the vinyl silicone oil.

[0018] The present invention is further configured as follows: the copolymerization and cross-linking method in S3 includes:

[0019] A1. Mix the reinforced vinyl silicone oil and the modified hydrogen silicone oil under the action of inhibitor A-10-10, wherein the mixture is stirred at a speed of 500-1000 rpm for 10-20 minutes at room temperature;

[0020] A2. Add dibutyltin dilaurate catalyst to the stirred solution, and then stir at a speed of 500-1000 rpm for 30-60 minutes at room temperature to obtain an organosilicon polymer.

[0021] The degree of crosslinking is controlled by controlling the mass ratio of the reinforced vinyl silicone oil to the modified hydrogenated silicone oil. When the relative amount of the modified hydrogenated silicone oil is reduced, the degree of crosslinking decreases. On the contrary, when the relative amount of the modified hydrogenated silicone oil is increased, the degree of crosslinking increases.

[0022] The present invention is further configured as follows: the mass of the modified hydrogenated silicone oil in A1 is 5% to 25% of the reinforced vinyl silicone oil;

[0023] The mass of the inhibitor A-10-10 in A1 is 0.5% to 3% of the mass of the silicone oil H-18;

[0024] The mass of the dibutyltin dilaurate catalyst in A2 is 5% to 15% of the mass of the modified hydrogen-containing silicone oil.

[0025] The present invention is further configured as follows: the coating thickness in S4 is 0.1-2 mm;

[0026] The drying process in S4 includes drying in a vacuum drying oven at 140° C.-160° C. for 15 min-45 min.

[0027] The present invention provides a method for preparing a highly oxygen permeable and stretch-resistant organic silicon polymer film.

[0028] Beneficial effects:

[0029] (1) The present invention introduces a functional siloxane monomer, i.e., a rigid segment, with a controllable content through copolymerization, and introduces a hydrophilic group under the silylation reaction of silicone oil H-18 and 5-vinyl-1-ol. The rigid segment and the hydrophilic group are combined to ensure the stability of the oxygen permeability, improve the printing speed accuracy, and achieve ultra-high-speed printing. In addition, the tensile strength of the organic silicon polymer film is improved by controlling the cross-linking degree, so that it has the advantage of not being easily deformed, ensuring the accuracy of the printing process, and improving the utilization rate of the film.

[0030] (2) The present invention can maintain a contact angle of 102°±3° by controlling the content of rigid segments and hydrophilic groups, thereby improving the oxygen permeability and facilitating the increase of oxygen concentration, so as to control the oxygen inhibition effect and achieve continuous pulling. The introduction of octavinyl cage-like semi-siloxane as a rigid segment can increase the pore size and expand the path for oxygen permeation. In this way, during the curing process of the resin, oxygen can be more uniform and sufficient, reducing surface defects and interlayer interface problems, thereby improving the smoothness and quality of the surface and improving the tensile strength. The smaller the thickness, the higher the oxygen permeability, and the film is not easily deformed, thereby ensuring printing accuracy and improving film utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the preparation process of the present invention;

[0032] Figure 2 This is a physical picture of the organosilicon polymer film product prepared in an embodiment of the present invention.

[0033] Figure 3 The hydrogen nuclear magnetic resonance spectrum of the hydroxyl-functionalized hydrogen-containing silicone oil prepared by reacting 5-hexen-1-ol with hydrogen-containing silicone oil under the action of chloroplatinic acid catalyst in the present invention.

[0034] Figure 4 This is the infrared absorption spectrum of the finished film of the present invention in which only silica gel is added during the process of strengthening the vinyl silicone oil.

[0035] Figure 5 This is the infrared absorption spectrum of the finished film of the present invention, in which silica gel, end-side hydrogen-containing silicone oil and octavinyl cage-like semi-siloxane are added during the process of strengthening the vinyl silicone oil. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-5 , the embodiment of the present invention provides the following technical solutions:

[0038] Embodiment 1: A method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, comprising the following steps:

[0039] Take 5g of 0.75% silicone oil H-18 and 1.1g of 5-hexene-1-ol and add them to a beaker, put the beaker into a 60°C oil bath, stir at a speed of 1000r for 30min, and finally obtain hydroxy silicone oil. Take 25g of vinyl silicone oil (1000cps), 2g of hydroxy silicone oil, 2.1g of end-side hydrogenated silicone oil, 5.4g of base glue, 1g of octavinyl caged semisiloxane, and 0.04g of inhibitor A-10-10 and add them to a beaker, stir with a spiral stirrer at a speed of 500r for 10min, and then at room temperature, remove the beaker, weigh 0.25g of dibutyltin dilaurate catalyst and add it to the beaker, stir at a speed of 500r for 30min, and obtain an organosilicon polymer (liquid). Pour the resulting liquid on a release film and apply it with a coating machine to a thickness of 2mm for the best effect. Finally, it is placed in a vacuum drying oven for curing at a temperature of 150° C. for 25 minutes, and the obtained product is an organic silicon polymer film.

[0040] The properties of the organosilicon polymer film obtained in this example are shown in Table 1:

[0041] Oxygen permeability Tensile Strength Elongation at break Young's modulus 1021Barrer 32MPa 11.3％ 0.80MPa

[0042] Table 1

[0043] Embodiment 2: A method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, comprising the following steps:

[0044] Take 5g of 0.75% silicone oil H-18 and 1.1g of 5-hexene-1-ol and add them to a beaker, put the beaker into a 60°C oil bath, stir at a speed of 1000r for 30min, and finally obtain hydroxy silicone oil. Take 25g of vinyl silicone oil (1000cps), 2g of hydroxy silicone oil, 2.1g of end-side hydrogenated silicone oil, 5.4g of base glue, 1.5g of octavinyl caged siloxane, and 0.04g of inhibitor A-10-10 and add them to a beaker, stir with a spiral stirrer at a speed of 500r for 10min, and then at room temperature, remove the beaker, weigh 0.25g of dibutyltin dilaurate catalyst and add it to the beaker, stir at a speed of 500r for 30min, and obtain an organosilicon polymer (liquid).

[0045] Pour the obtained liquid on the release film and use a coating machine to apply the film with a thickness of 2 mm for the best effect. Finally, put it into a vacuum drying oven for curing at a temperature of 150°C for 25 minutes. The obtained product is an organic silicone polymer film.

[0046] The properties of the organic silicon polymer film obtained in this example are shown in Table 2:

[0047] Oxygen permeability Tensile Strength Elongation at break Young's modulus 1028Barrer 33MPa 11.5％ 0.80MPa

[0048] Table 2

[0049] Embodiment 3: A method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, comprising the following steps:

[0050] Take 5g of 0.75% silicone oil H-18 and 1.1g of 5-hexene-1-ol and add them to a beaker, put the beaker into a 60°C oil bath, stir at a speed of 1000r for 30min, and finally obtain hydroxy silicone oil. Take 25g of vinyl silicone oil (1000cps), 2g of hydroxy silicone oil, 2.1g of end-side hydrogenated silicone oil, 5.4g of base glue, 2g of octavinyl caged semisiloxane, and 0.04g of inhibitor A-10-10 and add them to a beaker, stir with a spiral stirrer at a speed of 500r for 10min, and then at room temperature, remove the beaker, weigh 0.25g of dibutyltin dilaurate catalyst and add it to the beaker, stir at a speed of 500r for 30min, and obtain an organosilicon polymer (liquid).

[0051] Pour the obtained liquid on the release film and use a coating machine to apply the film with a thickness of 2 mm for the best effect. Finally, put it into a vacuum drying oven for curing at a temperature of 150°C for 25 minutes. The obtained product is an organic silicone polymer film.

[0052] The properties of the organosilicon polymer film obtained in this example are shown in Table 3:

[0053] Oxygen permeability Tensile Strength Elongation at break Young's modulus 1035Barrer 34MPa 11.6％ 0.81MPa

[0054] Table 3

[0055] Embodiment 4: A method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, comprising the following steps:

[0056] Take 5g of 0.75% silicone oil H-18 and 1.1g of 5-hexene-1-ol and add them to a beaker, put the beaker into a 60°C oil bath, stir at a speed of 1000r for 30min, and finally obtain hydroxy silicone oil. Take 25g of vinyl silicone oil (1000cps), 2.5g of hydroxy silicone oil, 2.1g of end-side hydrogen silicone oil, 5.4g of base glue, 1.5g of octavinyl caged siloxane, and 0.04g of inhibitor A-10-10 and add them to a beaker, stir with a spiral stirrer at a speed of 500r for 10min, and then at room temperature, remove the beaker, weigh 0.25g of dibutyltin dilaurate catalyst and add it to the beaker, stir at a speed of 500r for 30min, and obtain an organosilicon polymer (liquid).

[0057] Pour the obtained liquid on the release film and use a coating machine to apply the film with a thickness of 2 mm for the best effect. Finally, put it into a vacuum drying oven for curing at a temperature of 150°C for 25 minutes. The obtained product is an organic silicone polymer film.

[0058] The properties of the organosilicon polymer film obtained in this example are shown in Table 4:

[0059] Oxygen permeability Tensile Strength Elongation at break Young's modulus 1027Barrer 34MPa 11.7％ 0.84MPa

[0060] Table 4

[0061] Embodiment 5: A method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, comprising the following steps:

[0062] Take 5g of 0.75% silicone oil H-18 and 1.1g of 5-hexene-1-ol and add them to a beaker, put the beaker into a 60°C oil bath, stir at a speed of 1000r for 30min, and finally obtain hydroxy silicone oil. Take 25g of dibutyltin dilaurate catalyst, vinyl silicone oil (1000cps), 3g of hydroxy silicone oil, 2.1g of end-side hydrogenated silicone oil, 5.4g of base glue, 1.5g of octavinyl caged siloxane, and 0.04g of inhibitor A-10-10 and add them to a beaker, stir with a spiral stirrer at a speed of 500r for 10min, and then at room temperature, remove the beaker, weigh 0.25g and add it to the beaker, stir at a speed of 500r for 30min, and obtain an organosilicon polymer (liquid).

[0063] Pour the obtained liquid on the release film and use a coating machine to apply the film with a thickness of 2 mm for the best effect. Finally, put it into a vacuum drying oven for curing at a temperature of 150°C for 25 minutes. The obtained product is an organic silicone polymer film.

[0064] The properties of the organosilicon polymer film obtained in this example are shown in Table 5:

[0065] Oxygen permeability Tensile Strength Elongation at break Young's modulus 1028Barrer 35MPa 11.8％ 0.80MPa

[0066] Table 5

[0067] Embodiment 6: A method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, comprising the following steps:

[0068] Take 5g of 0.75% silicone oil H-18 and 1.1g of 5-hexene-1-ol and add them to a beaker, put the beaker into a 60°C oil bath, stir at a speed of 1000r for 30min, and finally obtain hydroxy silicone oil. Take 25g of vinyl silicone oil (1000cps), 2g of hydroxy silicone oil, 2.1g of end-side hydrogenated silicone oil, 4.4g of base glue, 1.5g of octavinyl caged siloxane, and 0.04g of inhibitor A-10-10 and add them to a beaker, stir with a spiral stirrer at a speed of 500r for 10min, and then at room temperature, remove the beaker, weigh 0.25g of dibutyltin dilaurate catalyst and add it to the beaker, stir at a speed of 500r for 30min, and obtain an organosilicon polymer (liquid).

[0069] Pour the obtained liquid on the release film and use a coating machine to apply the film with a thickness of 2 mm for the best effect. Finally, put it into a vacuum drying oven for curing at a temperature of 150°C for 25 minutes. The obtained product is an organic silicone polymer film.

[0070] The properties of the organic silicon polymer film obtained in this example are shown in Table 6:

[0071] Oxygen permeability Tensile Strength Elongation at break Young's modulus 1028Barrer 30MPa 10.5％ 0.79MPa

[0072] Table 6

[0073] Embodiment 7: A method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, comprising the following steps:

[0074] Take 5g of 0.75% silicone oil H-18 and 1.1g of 5-hexene-1-ol and add them to a beaker, put the beaker into a 60°C oil bath, stir at a speed of 1000r for 30min, and finally obtain hydroxy silicone oil. Take 25g of vinyl silicone oil (1000cps), 2g of hydroxy silicone oil, 2.1g of end-side hydrogen silicone oil, 6.4g of base glue, 1.5g of octavinyl caged semisiloxane, and 0.04g of inhibitor A-10-10 and add them to a beaker, stir with a spiral stirrer at a speed of 500r for 10min, and then at room temperature, remove the beaker, weigh 0.25g of dibutyltin dilaurate catalyst and add it to the beaker, stir at a speed of 500r for 30min, and obtain an organosilicon polymer (liquid).

[0075] Pour the obtained liquid on the release film and use a coating machine to apply the film with a thickness of 2 mm for the best effect. Finally, put it into a vacuum drying oven for curing at a temperature of 150°C for 25 minutes. The obtained product is an organic silicone polymer film.

[0076] The properties of the organosilicon polymer film obtained in this example are shown in Table 7:

[0077] Oxygen permeability Tensile Strength Elongation at break Young's modulus 1028Barrer 38MPa 13.5％ 0.88MPa

[0078] Table 7

[0079] Embodiment 8: A method for preparing a high oxygen permeability and stretch-resistant organic silicon polymer film, comprising the following steps:

[0080] Take 5g of 0.75% silicone oil H-18 and 1.1g of 5-hexene-1-ol and add them to a beaker, put the beaker into a 60°C oil bath, stir at a speed of 1000r for 30min, and finally obtain hydroxy silicone oil. Take 25g of vinyl silicone oil (1000cps), 2g of hydroxy silicone oil, 2.1g of end-side hydrogenated silicone oil, 5.4g of base gum, and 0.04g of inhibitor A-10-10 and add them to a beaker, stir with a spiral stirrer at a speed of 500r for 10min, and then at room temperature, remove the beaker, weigh 0.25g of dibutyltin dilaurate catalyst and add it to the beaker, stir at a speed of 500r for 30min, and obtain an organosilicon polymer (liquid).

[0081] The obtained liquid is poured onto the release film and coated with a coating machine with a thickness of 2 mm for the best effect. Finally, it is placed in a vacuum drying oven for curing at a temperature of 150°C for 25 minutes. The obtained product is an organic silicone polymer film.

[0082] The properties of the organosilicon polymer film obtained in this example are shown in Table 8:

[0083] Oxygen permeability Tensile Strength Elongation at break Young's modulus 0 33MPa 11.5％ 0.80MPa

[0084] Table 8

[0085] As attached Figure 3 As shown, it is a hydrogen nuclear magnetic resonance spectrum of hydroxyl-functionalized hydrogenated silicone oil prepared by reacting 5-hexen-1-ol with hydrogenated silicone oil under the action of chloroplatinic acid catalyst. The multi-peak a of δ=0.14 ppm is the signal peak of the protons on the two methyl groups of the hydrogenated silicone oil itself, the triple peak b of δ=4.74 ppm is the signal peak of the protons on silicon that have not undergone hydrosilylation reaction, the peak c of δ=1,49 ppm, the peak d of δ=1.57 ppm, the peak e of δ=2.09 ppm, and the peak f of δ=2.35 ppm are the signal peaks of -CH on 5-hexen-1-ol. 2 - is the signal peak of the proton, and the triple peak g at δ=3.62ppm is the signal peak of the alcohol proton. The above results can prove that the product has no double bond, the hydrosilylation reaction is complete, and the hydroxyl-functionalized hydrogen-containing silicone oil is successfully synthesized.

[0086] As attached Figure 4 and attached Figure 5 The infrared spectra of representative samples are shown. Comparative analysis shows that the infrared spectra of the end-side hydrogenated silicone oil and the octavinyl caged siloxane-modified silicone oxygen permeable membrane show multiple adsorption peaks, which almost cover all the weak adsorption peaks of the octavinyl caged siloxane. Among them, 1085cm-1 is the vibration absorption peak of the Si-O bond in the caged siloxane, which is consistent with the adsorption peak of the attached Figure 4 In comparison, the peaks here are greatly enhanced, proving that the octavinyl cage siloxane is successfully introduced. However, the sample shows a peak in the range of 500 to 1500 cm-1, which clearly indicates the presence of octavinyl cage siloxane. The peaks of octavinyl cage siloxane are 1085 cm-1. -1 The strong characteristic adsorption at the site, namely the Si-O bond, will enhance the adsorption of the composite material in this area.

[0087] In summary, as attached Figure 2 As shown, as a finished product of the organosilicon polymer film prepared according to the above-mentioned embodiment 2, it ensures the stability of oxygen permeability while improving the printing speed accuracy to achieve ultra-high-speed printing, and can also improve the tensile strength by controlling the cross-linking degree. As a detailed description, after the cross-linking degree is greater than 45%, the film thickness can be controlled between 1mm and 3mm, and the tensile strength is improved. The smaller the thickness, the higher the oxygen permeability, and it is not easy to deform, thereby ensuring printing accuracy and improving film utilization.

[0088] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0089] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a high oxygen permeability and tensile-resistant organic silicon polymer film, characterized in that: The specific steps include: S1. Introducing hydrophilic groups into hydrogen-containing silicone oil by silicon-hydrogen reaction to obtain modified hydrogen-containing silicone oil; S2, introducing functional siloxane monomer, end-side hydrogen-containing silicone oil and mixed rubber into vinyl silicone oil to obtain reinforced vinyl silicone oil; S3, copolymerizing and cross-linking the modified hydrogen-containing silicone oil and the reinforced vinyl silicone oil through a silicon-hydrogen reaction to obtain an organosilicon polymer; S4, pouring the organic silicon polymer onto the release film and coating it with a coating agent, and obtaining the organic silicon polymer film after drying.

2. The method for preparing a highly oxygen permeable and stretch-resistant organic silicon polymer film according to claim 1, characterized in that: The hydrogenated silicone oil in S1 is silicone oil H-18 with a concentration of 0.75%; The methods for introducing hydrophilic groups into S1 include: Add 5-vinyl-1-ol to silicone oil H-18 and stir at a speed of 500-1000 rpm at a temperature of 40°C-80°C for 0.5h-1h.

3. The method for preparing a highly oxygen permeable and stretch-resistant organic silicon polymer film according to claim 2, characterized in that: The total amount of the 5-ethylene-1-ol is 2% to 22% of the mass of the silicone oil H-18.

4. The method for preparing a highly oxygen permeable and stretch-resistant organic silicon polymer film according to claim 1, characterized in that: The functional siloxane monomer in S2 is octavinyl caged siloxane, and the mixed rubber in S2 is silica gel with a molecular weight of (2-20)×103 g / mol. The methods of introducing vinyl silicone oil into the two include: Add octavinyl cage siloxane and silica gel into vinyl silicone oil and stir at 500-1000 rpm for 10-20 minutes at room temperature.

5. The method for preparing a highly oxygen permeable and stretch-resistant organic silicon polymer film according to claim 4, characterized in that: The mass of the end-side hydrogenated silicone oil is 5% to 10% of the mass of the vinyl silicone oil, and the mass of the octavinyl cage-like semisiloxane and silica gel is 5% to 25% of the mass of the vinyl silicone oil.

6. The method for preparing a highly oxygen permeable and stretch-resistant organic silicon polymer film according to claim 3, characterized in that: The copolymerization and cross-linking methods in S3 include: A1. Mix the reinforced vinyl silicone oil and the modified hydrogen silicone oil under the action of inhibitor A-10-10, wherein the mixture is stirred at a speed of 500-1000 rpm for 10-20 minutes at room temperature; A2. Add dibutyltin dilaurate catalyst to the stirred solution, and then stir at a speed of 500-1000 rpm for 30-60 minutes at room temperature to obtain an organosilicon polymer.

7. The method for preparing a highly oxygen permeable and stretch-resistant organic silicon polymer film according to claim 1, characterized in that: The mass of the modified hydrogenated silicone oil in A1 is 5% to 25% of the reinforced vinyl silicone oil; The mass of the inhibitor A-10-10 in A1 is 0.5% to 3% of the mass of the silicone oil H-18; The mass of the dibutyltin dilaurate catalyst in A2 is 5% to 15% of the mass of the modified hydrogen-containing silicone oil.

8. The method for preparing a highly oxygen permeable and stretch-resistant organic silicon polymer film according to claim 1, characterized in that: The coating thickness in S4 is 0.1-2 mm; The drying process in S4 includes drying in a vacuum drying oven at 140° C.-160° C. for 15 min-45 min.

Images