Flexible stab-resistant fabric

Abstract

The invention discloses a flexible stab-resistant fabric, and relates to the field of fabrics, hydroxyl-terminated polyether modified polysiloxane is prepared by using hydrogen-terminated silicone oil and allyl polyether as reaction raw materials, the hydroxyl-terminated polyether modified polysiloxane and epoxy resin are subjected to a hydrosilylation reaction to generate polysiloxane epoxy resin, and then hydrogen-containing silicone oil is added to coat a cotton fiber fabric, so that the flexible stab-resistant fabric is obtained. The flexible stab-resistant fabric is prepared. The prepared flexible stab-resistant fabric has the effects of being soft, breathable, resistant to high temperature and resistant to ultraviolet rays.

Description

Technical Field

[0001] This invention relates to the field of fabric technology, specifically to a flexible puncture-resistant fabric. Background Technology

[0002] Most fabrics sold in the contemporary market tout their softness and skin-friendliness, but fabrics that achieve both softness and skin-friendliness while meeting other requirements are extremely rare. Purchasing numerous fabrics to achieve different effects contradicts the principles of thrift and green living advocated in today's society, and ultimately results in products that lose their inherent charm and comfort. The fabric of this invention, while soft, also provides puncture resistance, breathability, and UV protection, and reduces the economic burden on consumers—a win-win situation. Therefore, designing a flexible, puncture-resistant fabric that is both breathable and UV-protective is essential. Summary of the Invention

[0003] The purpose of this invention is to provide a flexible stab-resistant fabric and its preparation method to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a flexible stab-resistant fabric and its preparation method, comprising the following raw materials in parts by weight: 50-80 parts hydrogen-containing silicone oil epoxy resin, 10-20 parts organic amine curing agent, 100-150 parts fabric.

[0005] Preferably, the hydrogen-containing silicone oil epoxy resin is composed of hydrogen-containing silicone oil and polysiloxane epoxy resin.

[0006] Preferably, the polysiloxane epoxy resin is prepared by removing a small amount of moisture from hydroxyl-terminated polyether-modified polysiloxane and epoxy resin at a certain temperature, followed by heating and stirring at a certain time and temperature.

[0007] Preferably, the hydroxyl-terminated polyether modified polysiloxane is prepared by hydrosilylation of terminal hydrogen silicone oil and allyl polyether with the addition of a tetrahydrofuran solution containing chloroplatinic acid through heating and stirring.

[0008] Preferably, the epoxy resin is one of bisphenol A type epoxy resin and bisphenol F type epoxy resin; the fabric has a weight of 130-220 g / m². 2 Cotton fiber fabric.

[0009] A second aspect of this invention provides a flexible stab-resistant fabric and a method for preparing the same, comprising the following specific steps: (1) Preparation of hydroxyl-terminated polyether modified polysiloxane: Hydrogen-terminated silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are stirred and heated to a certain temperature. Then, allyl polyether is added dropwise through a separatory funnel and stirring is continued until the reaction is completed. After removing impurities by vacuum and evaporation, hydroxyl-terminated polyether modified polysiloxane is obtained. (2) Preparation of polysiloxane epoxy resin: After removing a small amount of water from hydroxyl-terminated polyether modified polysiloxane and epoxy resin at a certain temperature, the mixture is cooled and allowed to stand, and then heated and stirred at high temperature to obtain polysiloxane epoxy resin. (3) Preparation of hydrogen-containing silicone oil epoxy resin: Polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed evenly, and organic amine curing agent and pentaerythritol catalyst are added. After stirring and mixing, hydrogen-containing silicone oil epoxy resin is obtained. (4) Preparation of flexible anti-stab fabric: The hydrogen-containing silicone oil epoxy resin obtained in step (3) is coated on the fabric and cured at high temperature to obtain flexible anti-stab fabric.

[0010] Preferably, in step (1): terminal hydrogen silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are added to a four-necked flask at a mass ratio of 3:1 to 5:1, and the mixture is continuously stirred and heated to a certain temperature. At this temperature, allyl polyether with a mass of 0.1 to 0.5 times that of terminal hydrogen silicone oil is added dropwise using a separatory funnel, and stirring is continued. After the reaction is completed, the mixture is obtained by removing volatile products by vacuum distillation.

[0011] Preferably, in step (2): the hydroxyl-terminated polyether modified polysiloxane and epoxy resin are rotary evaporated at 80℃~100℃ for 20~30min to remove excess water and then cooled to room temperature. The hydroxyl-terminated polyether modified polysiloxane and epoxy resin with a mass ratio of 2:1~5:1 after the above treatment are added to a three-necked flask containing a stirrer, a feeding funnel and a reflux condenser. The mixture is stirred and heated to 80℃~100℃. Then, 0.1~0.3 times the mass of epoxy resin dibutyltin dilaurate is gradually added dropwise. The temperature is further raised to 130℃~150℃ and stirred at a constant temperature for several hours to obtain polysiloxane epoxy resin.

[0012] Preferably, in step (3): polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed at a mass ratio of 5:2 to 10:2, heated and stirred to 130°C to 160°C, and then the product is post-treated to obtain hydrogen-containing silicone oil epoxy resin.

[0013] Preferably, the coating amount in step (4) is: the thickness of the epoxy resin film after coating and curing is controlled to be 0.005 to 0.01 mm.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: First, this invention uses terminal hydrogen silicone oil and allyl polyether as reactants to prepare hydroxyl-terminated polyether-modified polysiloxane. This modified polysiloxane is then reacted with epoxy resin via hydrosilylation to generate polysiloxane epoxy resin. The alkoxy groups of the modified polysiloxane react with the secondary hydroxyl groups in the epoxy resin to form stable siloxane bonds. These siloxane bonds can act as light shielding agents for the organic molecular chains, thereby improving UV resistance. Furthermore, the siloxane bonds in the modified polysiloxane epoxy resin absorb moisture from the air and polymerize under alkaline conditions, generating a siloxane structure with a spatial network structure. This structure provides heat resistance to the polysiloxane epoxy resin. Introducing siloxane bonds with higher bond energy into the epoxy resin also enhances its heat resistance. The thermal decomposition temperature of the curing system is increased, thereby enhancing the high temperature resistance and thermal stability of the cured product. Although the siloxane segments with a network structure generated by the condensation polymerization of siloxane bonds are incompatible with epoxy resin, one end of the epoxy resin is chemically bonded to the hydroxyl polyether modified polysiloxane. Therefore, the compatibility between the network structure of the siloxane segments and the epoxy resin can be improved, allowing it to maintain good dispersion during the curing process. As the epoxy ring-opening polymerization reaction proceeds during curing, the movement of molecular chains is restricted. After the polysiloxane is grafted onto the epoxy resin, it forms a network structure that hinders the relative movement of cotton fiber macromolecules, exhibiting good surface activity and enhancing the flexibility of cotton fibers. Furthermore, the introduction of hydrophilic polyether segments can also enhance the hydrophilicity of cotton fibers.

[0015] In preparing the flexible stab-resistant fabric, this invention adds hydrogen-containing silicone oil to the epoxy resin. The hydrogen-containing silicone oil can further crosslink and foam with the modified epoxy resin containing terminal hydroxyl polysiloxanes. The hydrogen gas generated during the reaction promotes the foaming of the epoxy resin, thereby forming a porous structure. After coating the fabric, it retains its breathability. With the assistance of the catalyst pentaerythritol, the foam expands uniformly and at a high ratio, forming small, low-density, and high-porosity pores. Furthermore, the hydrogen-containing silicone oil undergoes a hydrosilylation reaction with the epoxy resin during synthesis. During product use, because the silane structure is incorporated into the epoxy resin molecules, this structure can undergo hydrolysis with water to generate silanol, which then dehydrates and condenses to form silicon-oxygen-silicon bonds. Therefore, after washing, the three-dimensional network crosslinking structure of the fabric is further improved, enhancing its abrasion resistance and providing a long-lasting soft and stab-resistant effect. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0017] This invention provides a technical solution: a flexible stab-resistant fabric and its preparation method, comprising the following raw materials in parts by weight: 50-80 parts hydrogen-containing silicone oil epoxy resin, 10-20 parts organic amine curing agent, 100-150 parts fabric.

[0018] Preferably, the hydrogen-containing silicone oil epoxy resin is composed of hydrogen-containing silicone oil and polysiloxane epoxy resin.

[0019] Preferably, the polysiloxane epoxy resin is prepared by removing a small amount of moisture from hydroxyl-terminated polyether-modified polysiloxane and epoxy resin at a certain temperature, followed by heating and stirring at a certain time and temperature.

[0020] Preferably, the hydroxyl-terminated polyether modified polysiloxane is prepared by hydrosilylation of terminal hydrogen silicone oil and allyl polyether with the addition of a tetrahydrofuran solution containing chloroplatinic acid through heating and stirring.

[0021] Preferably, the epoxy resin is one of bisphenol A type epoxy resin and bisphenol F type epoxy resin; the fabric has a weight of 130-220 g / m². 2 Cotton fiber fabric.

[0022] A second aspect of this invention provides a flexible stab-resistant fabric and a method for preparing the same, comprising the following specific steps: (1) Preparation of hydroxyl-terminated polyether modified polysiloxane: Hydrogen-terminated silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are stirred and heated to a certain temperature. Then, allyl polyether is added dropwise through a separatory funnel and stirring is continued until the reaction is completed. After removing impurities by vacuum and evaporation, hydroxyl-terminated polyether modified polysiloxane is obtained. (2) Preparation of polysiloxane epoxy resin: After removing a small amount of water from hydroxyl-terminated polyether modified polysiloxane and epoxy resin at a certain temperature, the mixture is cooled and allowed to stand, and then heated and stirred at high temperature to obtain polysiloxane epoxy resin. (3) Preparation of hydrogen-containing silicone oil epoxy resin: Polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed evenly, and organic amine curing agent and pentaerythritol catalyst are added. After stirring and mixing, hydrogen-containing silicone oil epoxy resin is obtained. (4) Preparation of flexible anti-stab fabric: The hydrogen-containing silicone oil epoxy resin obtained in step (3) is coated on the fabric and cured at high temperature to obtain flexible anti-stab fabric.

[0023] Preferably, in step (1): terminal hydrogen silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are added to a four-necked flask at a mass ratio of 3:1 to 5:1, and the mixture is continuously stirred and heated to a certain temperature. At this temperature, allyl polyether with a mass of 0.1 to 0.5 times that of terminal hydrogen silicone oil is added dropwise using a separatory funnel, and stirring is continued. After the reaction is completed, the mixture is obtained by removing volatile products by vacuum distillation.

[0024] Preferably, in step (2): the hydroxyl-terminated polyether modified polysiloxane and epoxy resin are rotary evaporated at 80℃~100℃ for 20~30min to remove excess water and then cooled to room temperature. The hydroxyl-terminated polyether modified polysiloxane and epoxy resin with a mass ratio of 2:1~5:1 after the above treatment are added to a three-necked flask containing a stirrer, a feeding funnel and a reflux condenser. The mixture is stirred and heated to 80℃~100℃. Then, 0.1~0.3 times the mass of epoxy resin dibutyltin dilaurate is gradually added dropwise. The temperature is further raised to 130℃~150℃ and stirred at a constant temperature for several hours to obtain polysiloxane epoxy resin.

[0025] Preferably, in step (3): polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed at a mass ratio of 5:2 to 10:2, heated and stirred to 130°C to 160°C, and then the product is post-treated to obtain hydrogen-containing silicone oil epoxy resin.

[0026] Preferably, the coating amount in step (4) is: the thickness of the epoxy resin film after coating and curing is controlled to be 0.005 to 0.01 mm.

[0027] Example 1: A flexible stab-resistant fabric A flexible stab-resistant fabric, comprising the following raw materials in parts by weight: 50 parts hydrogen-containing silicone oil epoxy resin, 10 parts organic amine curing agent, 100 parts fabric.

[0028] A flexible stab-resistant fabric and its preparation method, comprising the following specific steps: (1) Preparation of hydroxyl-terminated polyether modified polysiloxane: Hydrogen-terminated silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are stirred and heated to a certain temperature. Then, allyl polyether is added dropwise through a separatory funnel and stirring is continued until the reaction is completed. After removing impurities by vacuum and evaporation, hydroxyl-terminated polyether modified polysiloxane is obtained. (2) Preparation of polysiloxane epoxy resin: After removing a small amount of water from hydroxyl-terminated polyether modified polysiloxane and epoxy resin at a certain temperature, the mixture is cooled and allowed to stand, and then heated and stirred at high temperature to obtain polysiloxane epoxy resin. (3) Preparation of hydrogen-containing silicone oil epoxy resin: Polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed evenly, and organic amine curing agent and pentaerythritol catalyst are added. After stirring and mixing, hydrogen-containing silicone oil epoxy resin is obtained. (4) Preparation of flexible anti-stab fabric: The hydrogen-containing silicone oil epoxy resin obtained in step (3) is coated on the fabric and cured at high temperature to obtain flexible anti-stab fabric.

[0029] Preferably, in step (1): terminal hydrogen silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are added to a four-necked flask at a mass ratio of 3:1, and the mixture is continuously stirred and heated to a certain temperature. At this temperature, allyl polyether with a mass of 0.1 times that of terminal hydrogen silicone oil is added dropwise using a separatory funnel, and stirring is continued. After the reaction is completed, the mixture is obtained by removing volatile products by vacuum distillation.

[0030] Preferably, in step (2): the hydroxyl-terminated polyether modified polysiloxane and epoxy resin are rotary evaporated at 80°C for 20 minutes to remove excess water and then cooled to room temperature. The hydroxyl-terminated polyether modified polysiloxane and epoxy resin with a mass ratio of 2:1 are added to a three-necked flask containing a stirrer, a feeding funnel, and a reflux condenser. The mixture is stirred and heated to 80°C. Then, 0.1 times the mass of epoxy resin dibutyltin dilaurate is gradually added dropwise. The temperature is further increased to 130°C and stirred at a constant temperature for 3 hours to obtain polysiloxane epoxy resin.

[0031] Preferably, in step (3): polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed at a mass ratio of 5:2, heated and stirred to 130°C, and then the product is post-treated to obtain hydrogen-containing silicone oil epoxy resin.

[0032] Preferably, the coating amount in step (4) is: the thickness of the epoxy resin film after coating and curing is controlled to be 0.005 mm.

[0033] Example 2: A flexible stab-resistant fabric A flexible stab-resistant fabric, comprising the following raw materials in parts by weight: 80 parts hydrogen-containing silicone oil epoxy resin, 20 parts organic amine curing agent, 150 parts fabric.

[0034] A flexible stab-resistant fabric and its preparation method, comprising the following specific steps: (1) Preparation of hydroxyl-terminated polyether modified polysiloxane: Hydrogen-terminated silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are stirred and heated to a certain temperature. Then, allyl polyether is added dropwise through a separatory funnel and stirring is continued until the reaction is completed. After removing impurities by vacuum and evaporation, hydroxyl-terminated polyether modified polysiloxane is obtained. (2) Preparation of polysiloxane epoxy resin: After removing a small amount of water from hydroxyl-terminated polyether modified polysiloxane and epoxy resin at a certain temperature, the mixture is cooled and allowed to stand, and then heated and stirred at high temperature to obtain polysiloxane epoxy resin. (3) Preparation of hydrogen-containing silicone oil epoxy resin: Polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed evenly, and organic amine curing agent and pentaerythritol catalyst are added. After stirring and mixing, hydrogen-containing silicone oil epoxy resin is obtained. (4) Preparation of flexible anti-stab fabric: The hydrogen-containing silicone oil epoxy resin obtained in step (3) is coated on the fabric and cured at high temperature to obtain flexible anti-stab fabric.

[0035] Preferably, in step (1): terminal hydrogen silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are added to a four-necked flask at a mass ratio of 5:1, and the mixture is continuously stirred and heated to a certain temperature. At this temperature, allyl polyether with a mass of 0.5 times that of terminal hydrogen silicone oil is added dropwise using a separatory funnel, and stirring is continued. After the reaction is completed, the mixture is obtained by removing volatile products by vacuum distillation.

[0036] Preferably, in step (2): the hydroxyl-terminated polyether modified polysiloxane and epoxy resin are rotary evaporated at 100°C for 30 minutes to remove excess water and then cooled to room temperature. The hydroxyl-terminated polyether modified polysiloxane and epoxy resin with a mass ratio of 5:1 are added to a three-necked flask containing a stirrer, a feeding funnel, and a reflux condenser. The mixture is stirred and heated to 100°C. Then, 0.3 times the mass of epoxy resin dibutyltin dilaurate is gradually added dropwise. The temperature is further increased to 150°C and stirred at a constant temperature for 3 hours to obtain polysiloxane epoxy resin.

[0037] Preferably, in step (3): polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed at a mass ratio of 10:2, heated and stirred to 160°C, and then the product is post-treated to obtain hydrogen-containing silicone oil epoxy resin.

[0038] Preferably, the coating amount in step (4) is: the thickness of the epoxy resin film after coating and curing is controlled to be 0.01 mm.

[0039] Comparative Example 1: Preparation of ordinary fabrics: After ordinary cotton fibers are spun, woven, dyed and finished, the fabric is treated with conditioning agents to obtain ordinary cotton fiber fabrics.

[0040] Comparative Example 2: The formulation of Comparative Example 2 is the same as that of Example 1. The only difference between the preparation method of this flexible stab-resistant fabric and that of Example 1 is that step (2) is not performed; the remaining preparation steps are the same as those of Example 1.

[0041] Comparative Example 3: The formulation composition of ratio 3 is the same as that of Example 1. The only difference between the preparation method of this flexible stab-resistant fabric and that of Example 1 is that step (3) is not performed; the remaining preparation steps are the same as those of Example 1.

[0042] Experimental Example 1 Fabrics prepared in Example 1, Comparative Example 1, and Comparative Example 2 were placed in an ultraviolet aging chamber for artificial accelerated aging. The shielding effect of these three fabrics on ultraviolet light was observed. The higher the gloss retention rate, the better the shielding effect on ultraviolet light and the better the resistance to ultraviolet aging. Light retention rate Example 1 90% Comparative Example 1 30% Comparative Example 2 60%

[0043] According to the gloss retention rate in the table above, it can be seen that Example 1 has the highest gloss retention rate. This is because the polysiloxane contained in the fabric has a very low absorption of ultraviolet light, and the alkoxy group of the modified polysiloxane reacts with the secondary hydroxyl group in the epoxy resin to form a stable siloxane bond. The siloxane bond can play a light shielding role on the organic molecular chain, thereby improving the ability to resist ultraviolet rays.

[0044] Experimental Example 2 The reactions of Example 1 and Comparative Example 3 before they were made into fabrics were observed, and the expansion ratio, average density of the epoxy resin coating, and average pore size of the two were measured to obtain the following data. Expansion ratio <![CDATA[Average density (kg∙m -3 )]]> Average aperture (mm) Example 1 2.47 630 0.37 Comparative Example 1 1.61 850 0.45

[0045] As can be seen from the table above, the bubbles produced in Comparative Example 3 without hydrogen-containing silicone oil expanded unevenly, with a small expansion ratio, uneven pore size, and low porosity. In contrast, Example 1, which contained hydrogen-containing silicone oil, showed uniform expansion of the bubbles, a larger expansion ratio, and small, dense, and uniformly distributed pore size. This indicates that hydrogen-containing silicone oil can undergo further cross-linking and foaming reactions with the modified epoxy resin containing terminal hydroxyl polysiloxanes. The hydrogen gas generated during the reaction can promote the foaming of the epoxy resin, thereby enabling the epoxy resin to form a porous structure. After coating the fabric, the fabric still retains its breathability, and the bubbles can expand uniformly with a high expansion ratio, resulting in small, low-density, and high-porosity pores.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 flexible stab-resistant fabric, characterized in that: The raw materials include the following parts by weight: 50 parts hydrogen-containing silicone oil epoxy resin, 10 parts organic amine curing agent, and 100 parts fabric. The preparation method of the flexible stab-resistant fabric includes the following specific steps: (1) Preparation of hydroxyl-terminated polyether modified polysiloxane: Hydrogen-terminated silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are stirred and heated to a certain temperature. Then, allyl polyether is added dropwise through a separatory funnel and stirring is continued until the reaction is completed. After removing impurities by vacuum and evaporation, hydroxyl-terminated polyether modified polysiloxane is obtained. (2) Preparation of polysiloxane epoxy resin: After removing a small amount of water from hydroxyl-terminated polyether modified polysiloxane and epoxy resin at a certain temperature, the mixture is cooled and allowed to stand, and then heated and stirred at high temperature to obtain polysiloxane epoxy resin. (3) Preparation of hydrogen-containing silicone oil epoxy resin: Polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed evenly, and curing agent organic amine and catalyst pentaerythritol are added. After stirring and mixing, hydrogen-containing silicone oil epoxy resin is obtained. (4) Preparation of flexible anti-stab fabric: The hydrogen-containing silicone oil epoxy resin obtained in step (3) is coated on the fabric and cured at high temperature to obtain flexible anti-stab fabric. In step (1): Hydrogen-terminated silicone oil and a certain amount of tetrahydrofuran solution containing chloroplatinic acid are added to a four-necked flask at a mass ratio of 3:

1. The mixture is stirred and heated to a certain temperature. At this temperature, allyl polyether with a mass of 0.1 times that of the hydrogen-terminated silicone oil is added dropwise using a separatory funnel, and stirring is continued. After the reaction is completed, the mixture is prepared by removing volatile products by vacuum distillation. In step (2): the hydroxyl-terminated polyether modified polysiloxane and epoxy resin were rotary evaporated at 80°C for 20 minutes to remove excess water and then cooled to room temperature. The hydroxyl-terminated polyether modified polysiloxane and epoxy resin with a mass ratio of 2:1 were added to a three-necked flask containing a stirrer, a feeding funnel and a reflux condenser. The mixture was stirred and heated to 80°C. Then, 0.1 times the mass of epoxy resin dibutyltin dilaurate was added dropwise. The temperature was continued to rise to 130°C and stirred at a constant temperature for 3 hours to obtain polysiloxane epoxy resin. In step (3): polysiloxane epoxy resin and hydrogen-containing silicone oil are mixed at a mass ratio of 5:2, heated and stirred to 130°C, and then the product is post-treated to obtain hydrogen-containing silicone oil epoxy resin. The coating amount mentioned in step (4) is: the thickness of the epoxy resin film after coating and curing is controlled to be 0.005 mm.