A method for preparing new energy-saving materials using photovoltaic waste

Abstract

The present invention relates to the field of environmental protection, and more particularly to a method for preparing an energy-saving new material from photovoltaic waste. The present invention uses modified phenolic resin as a raw material to prepare resin porous carbon, and conducts a mercapto-olefin addition reaction between the mercapto-silicon-containing phenolic resin and methacryloyloxy silicon powder. The volume expansion of silicon nanoparticles is suppressed, thereby maintaining the structural stability of a silicon negative electrode and reducing side reactions at the interface between an electrolyte and silicon. The steam generated by heating 2-mercaptopropionic acid and monosilane introduce silicon elements into the resin porous carbon, and vinylguanamine provides a nitrogen source, thereby helping to avoid silicon element agglomeration and improving the uniformity of silicon element distribution, thereby helping to increase the specific capacity of the negative electrode material. The present invention recycles waste materials from the photovoltaic industry to prepare an energy-saving new material, which can be used to produce lithium-ion battery negative electrodes, thus realizing the transformation of waste into treasure.

Description

Technical Field

[0001] The present invention relates to the field of environmental protection, and in particular to a method for preparing new energy-saving materials by utilizing photovoltaic waste. Background Art

[0002] Silicon, the second most abundant element on Earth, is widely used in industries such as photovoltaics, semiconductors, and microelectronics. Amidst the global energy and environmental crisis, renewable energy sources like solar energy are receiving increasing attention worldwide. Consequently, the silicon materials industry has experienced unprecedented growth. However, silicon wafer cutting generates a significant amount of silicon sludge waste (approximately 40%). High-value recycling of this waste has long been a major concern for the industry.

[0003] Chinese patent CN114773078B discloses a method for preparing high-purity carbon-carbon composite materials from waste carbon-carbon photovoltaic thermal field materials. This method uses waste carbon-carbon photovoltaic thermal field materials as raw material, first subjecting the materials to high-temperature purification. Carbon deposition is then used to differentiate the pulverized material. Short fibers with a specific aspect ratio are then deposited to grow whiskers of varying lengths, increasing their aspect ratio and achieving a fiber-like structure. These fibers can be used as reinforcements for subsequent products, effectively reducing production costs. The mixing of short fibers of varying lengths enhances the structural strength of the product and inhibits crack propagation. The use of solid asphalt powder effectively avoids the problem of uneven mixing and dispersion of liquid resin, short fibers, and carbon powder. Finally, high-temperature purification and carbon deposition are repeated to produce the high-purity carbon-carbon composite material. The high-purity carbon-carbon composite material prepared by this method is low-cost and high-purity, making it ideal for use in P-type and N-type single crystal furnace thermal fields and semiconductor thermal fields, which have strict ash content requirements.

[0004] Chinese patent CN114655959A: Discloses a high-purity micro-nano silicon powder purified from photovoltaic industry silicon waste, its purification method and application. The purification method uses photovoltaic silicon waste as raw material, and through high-temperature calcination, the polymer in the silicon waste can be volatilized. Through acid washing and drying, trace metal impurities can be removed, and the carbon content and oxygen content in the photovoltaic silicon waste can be reduced, thereby obtaining high-purity micro-nano silicon powder. The purification method of the present invention is simple and efficient. Compared with the micro-nano silicon powder obtained from commercial silicon powder, it reduces the manufacturing cost and can achieve the economic benefits of solid waste recycling and reuse. The purified micro-nano silicon powder of the present invention does not contain other impurities and has high purity. It has great application prospects in many fields such as silicon-based semiconductor materials, silicon-based negative electrode battery materials, silicon nitride ceramic materials, silicon carbide ceramic materials, magnesium silicide thermal conductive materials, and magnesium silicide and manganese silicide thermoelectric materials.

[0005] Chinese patent CN106318237A discloses a novel environmentally friendly material for encapsulating solar photovoltaic cells. The material is made from the following raw materials: coumarone resin, butyl epoxy stearate, monoglyceride stearate, butyl acrylate, sodium polyoxyethylene lauryl ether sulfate, phenyl petroleum sulfonate, butyl stearate, polysulfide rubber, butadiene rubber, ethylene-vinyl acetate copolymer, trimethylhexamethylenediamine, chlorinated paraffin, chopped glass fiber, barite powder, ethyl cellulose, acrylate copolymer, ethylene glycol azobisisobutyrate, 2-ethylhexyl tert-butyl peroxycarbonate, glycidoxypropyltrimethoxysilane, tricresyl phosphate, bis-1-decyloxy-2,2,6,6-tetramethylpiperidin-4-ol sebacate, an antioxidant, a heat stabilizer, a smoke suppressant, an anti-aging agent, and a UV absorber. The encapsulating coating material of the present invention has excellent comprehensive properties and can be well applied in the solar energy field, providing a good sealing effect.

[0006] However, the manufacturing process of nano-silicon-based composite structures is complex, the manufacturing cost is high, the production cycle is long, and the energy consumption is high. The resulting silicon-carbon composite negative electrode material has an uneven distribution of silicon elements in the prepared silicon-carbon negative electrode material due to the easy agglomeration of nano-silicon and poor dispersion during the preparation process, and the cycle performance is still poor. Summary of the Invention

[0007] In order to solve the above problems, the present invention provides a method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows:

[0008] S1: Weigh 12-15 parts of photovoltaic waste by weight and ball mill them to obtain silicon powder for later use;

[0009] S2: Weigh 0.1-1 parts of inorganic nickel and 140-170 parts of ethanol, stir and mix, then add ball-milled silicon powder and 0.1-1 parts of methacryloxypropyltriethoxysilane (CAS No.: 21142-29-0), and perform ultrasonic treatment.

[0010] S3: Place the ultrasonically treated material, 5-10 parts of mercapto-containing silicon-containing phenolic resin, 0.05-0.3 parts of vinylguanamine, and 2-4 parts of sodium ethoxide into a reaction kettle and stir at 60-80°C for 5-8 hours;

[0011] S4: After the reaction is completed, cool to room temperature, filter and dry;

[0012] S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

[0013] Furthermore, the photovoltaic waste is photovoltaic cutting waste silicon.

[0014] Furthermore, the inorganic nickel is nickel nitrate or nickel carbonate.

[0015] Furthermore, the ultrasonic treatment time is 5-15 minutes.

[0016] Furthermore, the drying temperature is 70-90° C. and the drying time is 2-5 hours.

[0017] Furthermore, the high temperature calcination temperature is 450-550° C. and the time is 2-5 hours.

[0018] Furthermore, the energy-saving new material can be used to prepare the negative electrode of lithium-ion batteries.

[0019] Another aspect of the present invention provides a method for preparing a mercapto-containing silicon-containing phenolic resin:

[0020] The phenolic resin is placed in a reaction chamber of a plasma surface treatment instrument, and steam formed by heating 2-mercaptopropionic acid and monosilane are introduced into the plasma surface treatment instrument at a volume ratio of 5-10:1. The power is set to a treatment time of 200-400 seconds and a discharge power of 20-40W to obtain a mercapto silicon-containing phenolic resin.

[0021] The idea of ​​the present invention is:

[0022] 1. Silicon powder is surface treated with methacryloxypropyltriethoxysilane to obtain methacryloxy silicon powder; phenolic resin is subjected to plasma surface treatment, and steam generated by heating 2-mercaptopropionic acid and monosilane are introduced to obtain mercapto-containing silicon-containing phenolic resin;

[0023] 2. The mercapto-containing silicon-containing phenolic resin and methacryloyloxy silicon powder undergo a mercapto-olefin addition reaction; vinylguanamine and methacryloyloxy silicon powder undergo a mercapto-olefin addition reaction; and a modified phenolic resin is obtained.

[0024] The technical effects of the present invention are:

[0025] 1. The present invention recycles waste materials from the photovoltaic industry to prepare new energy-saving materials that can be used to produce lithium-ion battery negative electrodes, turning waste into treasure.

[0026] 2. The electrode prepared by using the new energy-saving material of the present invention has a first-cycle discharge capacity of 3286 mAhg -1 After 200 cycles of constant current charge and discharge, the specific capacity is 1936mAhg -1 , indicating that the energy-saving new material of the present invention can effectively alleviate the huge volume change problem of silicon during the lithiation / delithiation process, thereby being able to show good cycle performance; constructing a unique structure on the surface of silicon particles, such as a core-shell structure or a yolk-shell structure;

[0027] 3. The present invention uses modified phenolic resin as a raw material to prepare resin porous carbon, and the mercapto-silicon-containing phenolic resin and methacryloyloxy silicon powder undergo a mercapto-olefin addition reaction; the volume expansion of silicon nanoparticles is suppressed, thereby maintaining the structural stability of the silicon negative electrode and reducing side reactions at the interface between the electrolyte and silicon;

[0028] 4. The steam formed by heating 2-mercaptopropionic acid and monosilane introduce silicon elements into the resin porous carbon. Vinylguanamine provides a nitrogen source, which helps to avoid silicon element agglomeration and improve the uniformity of silicon element distribution, thereby helping to improve the specific capacity of the negative electrode material. DETAILED DESCRIPTION

[0029] The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0030] Silicon powder and the energy-saving new material prepared by the present invention were respectively used to prepare lithium-ion battery negative electrodes, which were then assembled into button-type half-cells; their electrochemical properties were then tested: a constant current charge and discharge cycle test was carried out at room temperature: the battery was first discharged and charged three times at a current density of 0.05C, and then continued to cycle at a current density of 0.1C for up to 200 times, and the specific capacity was measured.

[0031] Example 1

[0032] A method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows:

[0033] S1: Weigh 12 g of photovoltaic waste and ball mill it to obtain silicon powder for later use;

[0034] S2: Weigh 0.1 g of inorganic nickel and 140 g of ethanol, stir and mix, then add ball-milled silicon powder and 0.1 g of methacryloxypropyltriethoxysilane (CAS No.: 21142-29-0), and perform ultrasonic treatment.

[0035] S3: The ultrasonically treated material, 5 g of mercapto-containing silicon-containing phenolic resin, 0.05 g of vinylguanamine, and 2 g of sodium ethoxide were transferred into a reactor and stirred at 60°C for 5 h.

[0036] S4: After the reaction is completed, cool to room temperature, filter and dry;

[0037] S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

[0038] The photovoltaic waste is photovoltaic cutting waste silicon.

[0039] The inorganic nickel is nickel nitrate.

[0040] The ultrasonic treatment time is 5 minutes.

[0041] The drying temperature is 70° C. and the drying time is 2 hours.

[0042] The high temperature calcination temperature is 450° C. and the time is 2 hours.

[0043] The new energy-saving material can be used to prepare the negative electrode of lithium-ion batteries.

[0044] The preparation method of the mercapto silicon-containing phenolic resin is as follows:

[0045] The phenolic resin was placed in the reaction chamber of a plasma surface treatment instrument, and the steam formed by heating 2-mercaptopropionic acid and monosilane were introduced into the plasma surface treatment instrument in a volume ratio of 5:1. The power was set to a treatment time of 200S and a discharge power of 20W; and a mercapto silicon-containing phenolic resin was obtained.

[0046] Example 2

[0047] A method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows:

[0048] S1: Weigh 13 g of photovoltaic waste and ball mill it to obtain silicon powder for later use;

[0049] S2: Weigh 0.5 g of inorganic nickel and 150 g of ethanol, stir and mix, then add ball-milled silicon powder and 0.5 g of methacryloxypropyltriethoxysilane (CAS No.: 21142-29-0), and perform ultrasonic treatment.

[0050] S3: The ultrasonically treated material, 6 g of mercapto-containing silicon-containing phenolic resin, 0.1 g of vinylguanamine, and 3 g of sodium ethoxide were transferred into a reactor and stirred at 65°C for 6 h.

[0051] S4: After the reaction is completed, cool to room temperature, filter and dry;

[0052] S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

[0053] The photovoltaic waste is photovoltaic cutting waste silicon.

[0054] The inorganic nickel is nickel nitrate.

[0055] The ultrasonic treatment time is 8 minutes.

[0056] The drying temperature is 75° C. and the drying time is 3 hours.

[0057] The high temperature calcination temperature is 480° C. and the time is 3 hours.

[0058] The new energy-saving material can be used to prepare the negative electrode of lithium-ion batteries.

[0059] The preparation method of the mercapto silicon-containing phenolic resin is as follows:

[0060] The phenolic resin was placed in the reaction chamber of a plasma surface treatment instrument, and the steam formed by heating 2-mercaptopropionic acid and monosilane were introduced into the plasma surface treatment instrument in a volume ratio of 6:1. The power was set to a treatment time of 250S and a discharge power of 25W; and a mercapto silicon-containing phenolic resin was obtained.

[0061] Example 3

[0062] A method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows:

[0063] S1: Weigh 14 g of photovoltaic waste and mill it using a ball mill to obtain silicon powder for later use;

[0064] S2: Weigh 0.8 g of inorganic nickel and 160 g of ethanol, stir and mix, then add ball-milled silicon powder and 0.8 g of methacryloxypropyltriethoxysilane (CAS No.: 21142-29-0), and perform ultrasonic treatment.

[0065] S3: The ultrasonically treated material, 9 g of mercapto-containing silicon-containing phenolic resin, 0.2 g of vinylguanamine, and 3 g of sodium ethoxide were transferred into a reaction kettle and stirred at 75°C for 7 h.

[0066] S4: After the reaction is completed, cool to room temperature, filter and dry;

[0067] S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

[0068] The photovoltaic waste is photovoltaic cutting waste silicon.

[0069] The inorganic nickel is nickel carbonate.

[0070] The ultrasonic treatment time is 13 minutes.

[0071] The drying temperature is 85° C. and the drying time is 4 hours.

[0072] The high temperature calcination temperature is 530° C. and the time is 4 hours.

[0073] The new energy-saving material can be used to prepare the negative electrode of lithium-ion batteries.

[0074] The preparation method of the mercapto silicon-containing phenolic resin is as follows:

[0075] The phenolic resin was placed in the reaction chamber of a plasma surface treatment instrument, and the steam formed by heating 2-mercaptopropionic acid and monosilane were introduced into the plasma surface treatment instrument in a volume ratio of 9:1. The power was set to a treatment time of 350S and a discharge power of 35W; a mercapto silicon-containing phenolic resin was obtained.

[0076] Example 4

[0077] A method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows:

[0078] S1: Weigh 15g of photovoltaic waste and grind it in a ball mill to obtain silicon powder for later use;

[0079] S2: Weigh 1 g of inorganic nickel and 170 g of ethanol, stir and mix, then add ball-milled silicon powder and 1 g of methacryloxypropyltriethoxysilane (CAS No.: 21142-29-0), and perform ultrasonic treatment.

[0080] S3: The ultrasonically treated material, 10 g of mercapto-containing silicon-containing phenolic resin, 0.3 g of vinylguanamine, and 4 g of sodium ethoxide were transferred into a reactor and stirred at 80°C for 8 h.

[0081] S4: After the reaction is completed, cool to room temperature, filter and dry;

[0082] S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

[0083] The photovoltaic waste is photovoltaic cutting waste silicon.

[0084] The inorganic nickel is nickel carbonate.

[0085] The ultrasonic treatment time is 15 minutes.

[0086] The drying temperature is 90° C. and the drying time is 5 hours.

[0087] The high temperature calcination temperature is 550° C. and the time is 5 hours.

[0088] The new energy-saving material can be used to prepare the negative electrode of lithium-ion batteries.

[0089] The preparation method of the mercapto silicon-containing phenolic resin is as follows:

[0090] The phenolic resin was placed in the reaction chamber of a plasma surface treatment instrument, and the steam formed by heating 2-mercaptopropionic acid and monosilane were introduced into the plasma surface treatment instrument in a volume ratio of 10:1. The power was set to a treatment time of 400S and a discharge power of 40W; and a mercapto silicon-containing phenolic resin was obtained.

[0091] Comparative Example 1

[0092] A method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows:

[0093] S1: Weigh 12 g of photovoltaic waste and ball mill it to obtain silicon powder for later use;

[0094] S2: Weigh 0.1 g of inorganic nickel and 140 g of ethanol, stir and mix, then add ball-milled silicon powder and 0.1 g of methacryloxypropyltriethoxysilane (CAS No.: 21142-29-0), and perform ultrasonic treatment.

[0095] S3: The ultrasonically treated material, 5 g of phenolic resin, 0.05 g of vinylguanamine, and 2 g of sodium ethoxide were transferred into a reactor and stirred at 60°C for 5 h.

[0096] S4: After the reaction is completed, cool to room temperature, filter and dry;

[0097] S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

[0098] The photovoltaic waste is photovoltaic cutting waste silicon.

[0099] The inorganic nickel is nickel nitrate.

[0100] The ultrasonic treatment time is 5 minutes.

[0101] The drying temperature is 70° C. and the drying time is 2 hours.

[0102] The high temperature calcination temperature is 450° C. and the time is 2 hours.

[0103] The new energy-saving material can be used to prepare the negative electrode of lithium-ion batteries.

[0104] The preparation method of the mercapto silicon-containing phenolic resin is as follows:

[0105] Comparative Example 2

[0106] A method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows:

[0107] S1: Weigh 12 g of photovoltaic waste and ball mill it to obtain silicon powder for later use;

[0108] S2: Weigh 0.1 g of inorganic nickel and 140 g of ethanol, stir them together, add the ball-milled silicon powder, and perform ultrasonic treatment;

[0109] S3: The ultrasonically treated material, 5 g of mercapto-containing silicon-containing phenolic resin, 0.05 g of vinylguanamine, and 2 g of sodium ethoxide were transferred into a reactor and stirred at 60°C for 5 h.

[0110] S4: After the reaction is completed, cool to room temperature, filter and dry;

[0111] S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

[0112] The photovoltaic waste is photovoltaic cutting waste silicon.

[0113] The inorganic nickel is nickel nitrate.

[0114] The ultrasonic treatment time is 5 minutes.

[0115] The drying temperature is 70° C. and the drying time is 2 hours.

[0116] The high temperature calcination temperature is 450° C. and the time is 2 hours.

[0117] The new energy-saving material can be used to prepare the negative electrode of lithium-ion batteries.

[0118] The preparation method of the mercapto silicon-containing phenolic resin is as follows:

[0119] The phenolic resin was placed in the reaction chamber of a plasma surface treatment instrument, and the steam formed by heating 2-mercaptopropionic acid and monosilane were introduced into the plasma surface treatment instrument in a volume ratio of 5:1. The power was set to a treatment time of 200S and a discharge power of 20W; and a mercapto silicon-containing phenolic resin was obtained.

[0120] Comparative Example 3

[0121] A method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows:

[0122] S1: Weigh 12 g of photovoltaic waste and ball mill it to obtain silicon powder for later use;

[0123] S2: Weigh 0.1 g of inorganic nickel and 140 g of ethanol, stir and mix, then add ball-milled silicon powder and 0.1 g of methacryloxypropyltriethoxysilane (CAS No.: 21142-29-0), and perform ultrasonic treatment.

[0124] S3: The ultrasonically treated material, 5 g of mercapto-containing silicon-containing phenolic resin, and 2 g of sodium ethoxide were transferred into a reactor and stirred at 60°C for 5 h.

[0125] S4: After the reaction is completed, cool to room temperature, filter and dry;

[0126] S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

[0127] The photovoltaic waste is photovoltaic cutting waste silicon.

[0128] The inorganic nickel is nickel nitrate.

[0129] The ultrasonic treatment time is 5 minutes.

[0130] The drying temperature is 70° C. and the drying time is 2 hours.

[0131] The high temperature calcination temperature is 450° C. and the time is 2 hours.

[0132] The new energy-saving material can be used to prepare the negative electrode of lithium-ion batteries.

[0133] The preparation method of the mercapto silicon-containing phenolic resin is as follows:

[0134] The phenolic resin was placed in the reaction chamber of a plasma surface treatment instrument, and the steam formed by heating 2-mercaptopropionic acid and monosilane were introduced into the plasma surface treatment instrument in a volume ratio of 5:1. The power was set to a treatment time of 200S and a discharge power of 20W; and a mercapto silicon-containing phenolic resin was obtained.

[0135] Example test results:

[0136]

[0137]

[0138] Through the data analysis of the above examples and comparative examples, the electrode prepared by using the energy-saving new material of the present invention has a first-cycle discharge capacity of 3286 mAhg -1 After 200 cycles of constant current charge and discharge, the specific capacity is 1936mAhg -1 This shows that the new energy-saving material of the present invention can effectively alleviate the huge volume change problem of silicon during the lithiation / delithiation process, thereby being able to exhibit good cycle performance.

[0139] Although the present invention has been described in detail above using general explanations, specific embodiments, and experiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the present invention. Therefore, such modifications and improvements, which do not depart from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A method for preparing new energy-saving materials using photovoltaic waste, the operating steps of which are as follows: S1: Weigh 12-15 parts of photovoltaic waste by weight and ball mill them to obtain silicon powder for later use; S2: Weigh 0.1-1 parts of inorganic nickel and 140-170 parts of ethanol, stir and mix, then add ball-milled silicon powder and 0.1-1 parts of methacryloxypropyltriethoxysilane (CAS No.: 21142-29-0), and perform ultrasonic treatment. S3: Place the ultrasonically treated material, 5-10 parts of mercapto-containing silicon-containing phenolic resin, 0.05-0.3 parts of vinylguanamine, and 2-4 parts of sodium ethoxide into a reaction kettle and stir at 60-80°C for 5-8 hours; S4: After the reaction is completed, cool to room temperature, filter and dry; S5: After drying, the product is moved into a tubular furnace, nitrogen is introduced for protection, high-temperature calcination is performed, and the product is cooled to room temperature to obtain a new energy-saving material.

2. The method for preparing new energy-saving materials from photovoltaic waste according to claim 1, characterized in that: The photovoltaic waste is photovoltaic cutting waste silicon.

3. The method for preparing new energy-saving materials from photovoltaic waste according to claim 1, characterized in that: The inorganic nickel is nickel nitrate or nickel carbonate.

4. The method for preparing new energy-saving materials from photovoltaic waste according to claim 1, characterized in that: The ultrasonic treatment time is 5-15 minutes.

5. The method for preparing new energy-saving materials from photovoltaic waste according to claim 1, characterized in that: The drying temperature is 70-90° C. and the drying time is 2-5 hours.

6. The method for preparing new energy-saving materials from photovoltaic waste according to claim 1, characterized in that: The high-temperature calcination temperature is 450-550° C. and the time is 2-5 hours.

7. The method for preparing new energy-saving materials from photovoltaic waste according to claim 1, characterized in that: The new energy-saving material can be used to prepare the negative electrode of lithium-ion batteries.

8. The method for preparing new energy-saving materials from photovoltaic waste according to claim 1, characterized in that: The preparation method of the mercapto silicon-containing phenolic resin is as follows: The phenolic resin is placed in a reaction chamber of a plasma surface treatment instrument, and steam formed by heating 2-mercaptopropionic acid and monosilane are introduced into the plasma surface treatment instrument at a volume ratio of 5-10:

1. The power is set to a treatment time of 200-400 seconds and a discharge power of 20-40W to obtain a mercapto silicon-containing phenolic resin.

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