A damping cloth for fine grinding of blue glass and its preparation process

Abstract

This invention discloses a damping cloth for fine polishing of blue glass and its preparation process, belonging to the field of damping cloth preparation technology. It includes a damping cloth substrate layer, an adhesive layer, and an abrasive layer arranged sequentially from top to bottom. The preparation process is as follows: A polyurethane emulsion is coated onto the surface of the damping cloth substrate and dried at 100-120℃ for 30-60 minutes. Then, surface-treated wear-resistant particles are implanted into the adhesive layer using an electrostatic sand-planting method to obtain a semi-finished damping cloth. The semi-finished damping cloth is placed in a drying oven and pre-dried at 55-60℃ for 20-30 minutes, then heated to 80-85℃ and dried for 60-80 minutes to obtain the damping cloth for fine polishing of blue glass. This invention obtains a high-quality damping cloth suitable for fine polishing of blue glass by enhancing the toughness of the adhesive layer and improving the adhesion between the abrasive particles and the adhesive layer.

Description

Technical Field

[0001] This invention belongs to the field of damping cloth preparation technology, specifically relating to a damping cloth for fine grinding of blue glass and its preparation process. Background Technology

[0002] Blue glass is an optical component that uses light-absorbing substances dispersed within the glass material to control the wavelength of incident light. It can absorb some visible light (long wavelength side) while allowing the remaining light in a wide band from ultraviolet to infrared to pass through. High-end smartphones use blue glass infrared grafted filters as core optical components, placed between the image sensor. Their main function is to filter out near-infrared light, thus avoiding color unevenness and ghosting during shooting. However, these blue glass infrared grafted filters have very high quality requirements; the surface must be free of scratches, corrosion pits, white spots, and white fog, and they are often obtained through precision polishing.

[0003] Currently, damping cloth is commonly used for polishing blue glass. Damping cloth typically consists of a damping substrate layer, a hot melt adhesive layer, and a fixed abrasive layer, arranged from top to bottom. The fixed abrasive layer is usually adsorbed onto the hot melt adhesive layer using electrostatic sand-planting. The adhesive properties of the hot melt adhesive layer fix the abrasive, resulting in a fixed abrasive layer. However, this bonding is weak. During the blue glass polishing process, the wear-resistant particles can loosen or fall off due to the erosion of acidic or alkaline polishing solutions, leading to a shortened service life of the damping cloth or a decrease in the polishing quality of the blue glass surface. Either of these defects would be a significant drawback to industrial production. Therefore, it is necessary to provide a damping cloth with better performance for the fine polishing of blue glass. Summary of the Invention

[0004] The purpose of this invention is to provide a damping cloth for fine grinding of blue glass and its preparation process, so as to solve the problems in the background art.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A damping cloth for fine grinding of blue glass includes a damping cloth substrate layer, an adhesive layer and an abrasive layer arranged sequentially from top to bottom. The thickness of the damping cloth substrate layer is 0.2-0.4 mm, the thickness of the adhesive layer is 0.03-0.06 mm, and the thickness of the abrasive layer is 0.2-0.4 mm.

[0007] The preparation process of the damping cloth used for fine grinding of blue glass includes the following steps:

[0008] A polyurethane emulsion is coated onto the surface of the damping cloth substrate and dried at 100-120℃ for 30-60 minutes to form an adhesive layer. Then, surface-treated wear-resistant particles are implanted into the adhesive layer using an electrostatic sand-planting method to obtain a semi-finished damping cloth. The semi-finished damping cloth is placed in a drying oven and pre-dried at 55-60℃ for 20-30 minutes, and then heated to 80-85℃ for 60-80 minutes to obtain the damping cloth used for fine grinding of blue glass.

[0009] As a further aspect of the present invention, the polyurethane emulsion is prepared by the following steps:

[0010] Polypropylene glycol was dehydrated under reduced pressure at 110-120℃ for 2 hours, and 2,2-dimethylolpropionic acid was dried under vacuum at 60℃ for 2 hours. The temperature was controlled at 80℃. Toluene diisocyanate and polypropylene glycol were added to the flask and reacted for 1.5 hours. The temperature was then lowered to 75℃, and 1,4-butanediol, 2,2-dimethylolpropionic acid and dibutyltin dilaurate were added and reacted for 1 hour. Then, a stabilizing component was added and the reaction was stirred for 1 hour. The temperature was then lowered to 35℃ and triethylamine was added. After stirring for 30 minutes, ethylenediamine and deionized water were added and the mixture was stirred for another 30 minutes to obtain the polyurethane prepolymer.

[0011] The mass ratio of toluene diisocyanate, polypropylene glycol, 1,4-butanediol, 2,2-dimethylolpropionic acid, dibutyltin dilaurate, stabilizing component, triethylamine, ethylenediamine and deionized water is 5-10:8-20:0.1-2:1-5:0.01-0.03:0.8-3:0.1:0.8-1.2:40-50.

[0012] As a further aspect of the present invention, the stable component is prepared by the following steps:

[0013] Hydrogen-containing silicone oil, toluene, phenothiazine, and chloroplatinic acid-isopropanol solution were sequentially added to a reaction vessel. Under nitrogen protection, the mixture was stirred for 10-15 minutes, then heated to 85°C. A toluene solution of hexafluorobutyl methacrylate was slowly added dropwise. After the addition was complete, a toluene solution of glycidyl methacrylate was added dropwise. After the addition was complete, the temperature was raised to 130°C, and the mixture was stirred at a constant temperature for 20 hours. After the reaction was completed, toluene was removed by vacuum distillation. The mixture was washed with deionized water and dried to obtain a stable component.

[0014] As a further aspect of the present invention, the ratio of hydrogen-containing silicone oil, phenothiazine, hexafluorobutyl methacrylate, and glycidyl methacrylate is 100g:0.03g:0.09-0.12mol:0.09-0.12mol. The amount of chloroplatinic acid-isopropanol solution is 20-50ppm of the mass of the hydrogen-containing silicone oil. The hydrogen content of the hydrogen-containing silicone oil is 0.18%, purchased from Kramar Ltd. The concentration of chloroplatinic acid in the chloroplatinic acid-isopropanol solution is 0.8-1wt%, obtained by mixing chloroplatinic acid and isopropanol. Using hydrogen-containing silicone oil, hexafluorobutyl methacrylate, and glycidyl methacrylate as raw materials, and chloroplatinic acid-isopropanol solution as catalyst, a modified silicone oil containing fluorocarbon chains and active epoxy groups is synthesized by hydrosilylation reaction, i.e., the stable component.

[0015] As a further aspect of the present invention, the surface-treated wear-resistant particles are prepared through the following steps:

[0016] Step S1: Add 3-aminopropyltriethoxysilane and deionized water to a flask, stir at 100-200 r / min for 10-20 min, adjust the pH to 5 with concentrated hydrochloric acid, control the temperature at 50-60℃, stir and react for 4-6 h. After the reaction is complete, remove the solvent by rotary evaporation and dry under vacuum to obtain terminal amino hyperbranched polysiloxane.

[0017] Step S2: Mix the wear-resistant particles, deionized water and anhydrous ethanol, adjust the pH to 9 with sodium hydroxide solution, add terminal amino hyperbranched polysiloxane, control the temperature at 75-85℃, stir and react for 8-10 hours. After the reaction is completed, filter, wash the filter cake with deionized water and dry to obtain surface-treated wear-resistant particles.

[0018] As a further embodiment of the present invention, in step S1, the mass ratio of 3-aminopropyltriethoxysilane to deionized water is 30-40:60-80, and the mass fraction of concentrated hydrochloric acid is 37%.

[0019] As a further embodiment of the present invention, in step S2, the ratio of wear-resistant particles, deionized water, anhydrous ethanol and terminal amino hyperbranched polysiloxane is 8-10g: 40-60mL: 40-60mL: 0.5-1g, the mass fraction of sodium hydroxide solution is 40%, and the wear-resistant particles are composed of submicron cerium oxide, zirconium oxide, chromium oxide, rare earth, silicon dioxide and cobalt in a mass ratio of 50-60: 2-5: 2-10: 10-15: 5-10: 25-30.

[0020] As a further aspect of the present invention, the damping cloth substrate is a non-woven or woven fabric with a density of 300-900 g / kg, and is selected from non-woven or woven fabrics of polyester, polyamide, polyolefin, and polyphenylene sulfide.

[0021] The beneficial effects of this invention are:

[0022] This invention introduces a self-made stabilizing component into the adhesive layer. This stabilizing component is a modified silicone oil containing fluorocarbon chains and active epoxy groups. When introduced into a polyurethane emulsion, the epoxy groups undergo a ring-opening reaction to form new hydroxyl groups, which react with the isocyanate groups in the emulsion to introduce a flexible long chain of -Si-O-Si- into the system, thereby improving the toughness of the adhesive layer. When the abrasive layer comes into contact with blue glass and is polished, it can act as a buffer to reduce unnecessary scratches. Furthermore, based on the low surface energy characteristics of fluorine and silicon atoms, it can give the adhesive layer good corrosion resistance, resist the erosion of polishing fluid, and ensure the stability of wear-resistant particles.

[0023] This invention uses chemical methods to modify the surface of wear-resistant particles, specifically by using terminal amino hyperbranched polysiloxane. Treating the wear-resistant particles with terminal amino hyperbranched polysiloxane imparts cross-linking properties, allowing the particles to be "anchored" to the interior of the adhesive layer through chemical bonds (the surface amino groups react with the isocyanate groups in the adhesive layer), thus improving the stability of the wear-resistant particles. Furthermore, it forms a hyperbranched polymer-connected transition layer between the wear-resistant particles and the adhesive layer, reducing interfacial defects and strengthening interfacial forces. When the abrasive layer polishes blue glass, it effectively disperses stress, further buffering the surface and reducing the appearance of scratches.

[0024] In summary, this invention has produced a high-quality damping cloth suitable for fine polishing of blue glass by enhancing the toughness of the adhesive layer and improving the adhesion between the abrasive grains and the adhesive layer. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] Surface-treated wear-resistant particles are made through the following steps:

[0028] Step S1: Add 30g of 3-aminopropyltriethoxysilane and 60g of deionized water to a flask, stir at 100r / min for 10min, adjust the pH to 5 with 37wt% concentrated hydrochloric acid, control the temperature at 50℃, stir and react for 4h. After the reaction is completed, remove the solvent by rotary evaporation and vacuum dry to obtain terminal amino hyperbranched polysiloxane.

[0029] Step S2: Mix 8g of wear-resistant particles, 40mL of deionized water and 40mL of anhydrous ethanol, adjust the pH to 9 with 40wt% sodium hydroxide solution, add 0.5g of terminal amino hyperbranched polysiloxane, control the temperature at 75℃, stir and react for 8h. After the reaction is completed, filter, wash the filter cake with deionized water and dry to obtain surface-treated wear-resistant particles. The wear-resistant particles are composed of submicron cerium oxide, zirconium oxide, chromium oxide, rare earth, silicon dioxide and cobalt in a mass ratio of 50:2:2:10:5:25.

[0030] Example 2

[0031] Surface-treated wear-resistant particles are made through the following steps:

[0032] Step S1: Add 40g of 3-aminopropyltriethoxysilane and 80g of deionized water to a flask, stir at 200r / min for 20min, adjust the pH to 5 with 37wt% concentrated hydrochloric acid, control the temperature at 60℃, stir and react for 6h. After the reaction is completed, remove the solvent by rotary evaporation and dry under vacuum to obtain terminal amino hyperbranched polysiloxane.

[0033] Step S2: Mix 10g of wear-resistant particles, 60mL of deionized water and 60mL of anhydrous ethanol, adjust the pH to 9 with 40wt% sodium hydroxide solution, add 1g of terminal amino hyperbranched polysiloxane, control the temperature at 85℃, stir and react for 10h. After the reaction is completed, filter, wash the filter cake with deionized water and dry to obtain surface-treated wear-resistant particles. The wear-resistant particles are composed of submicron cerium oxide, zirconium oxide, chromium oxide, rare earth, silicon dioxide and cobalt in a mass ratio of 60:5:10:15:10:30.

[0034] Example 3

[0035] The stable component is prepared by the following steps:

[0036] 100g of hydrogen-containing silicone oil, 500mL of toluene, 0.03g of phenothiazine, and a chloroplatinic acid-isopropanol solution were sequentially added to a reaction vessel. Under nitrogen protection, the mixture was stirred for 10 minutes, then heated to 85°C. A solution consisting of 0.09mol of hexafluorobutyl methacrylate and 100mL of toluene was slowly added dropwise. After the addition was complete, a solution consisting of 0.09mol of glycidyl methacrylate and 100mL of toluene was added dropwise. After the addition was complete, the temperature was raised to 130°C and the mixture was stirred for 20 hours. After the reaction was complete, toluene was removed by vacuum distillation. The mixture was washed with deionized water and dried to obtain a stable component. The amount of chloroplatinic acid-isopropanol solution used was 20ppm of the mass of the hydrogen-containing silicone oil. The hydrogen content of the hydrogen-containing silicone oil was 0.18%, and it was purchased from Kramar Ltd. The concentration of chloroplatinic acid in the chloroplatinic acid-isopropanol solution was 0.8wt%.

[0037] Example 4

[0038] The stable component is prepared by the following steps:

[0039] 100g of hydrogen-containing silicone oil, 600mL of toluene, 0.03g of phenothiazine, and a chloroplatinic acid-isopropanol solution were sequentially added to a reaction vessel. Under nitrogen protection, the mixture was stirred for 15 minutes, then heated to 85°C. A solution consisting of 0.12mol of hexafluorobutyl methacrylate and 100mL of toluene was slowly added dropwise. After the addition was complete, a solution consisting of 0.12mol of glycidyl methacrylate and 100mL of toluene was added dropwise. After the addition was complete, the temperature was raised to 130°C and the mixture was stirred for 20 hours. After the reaction was complete, toluene was removed by vacuum distillation. The mixture was washed with deionized water and dried to obtain a stable component. The amount of chloroplatinic acid-isopropanol solution used was 50ppm of the mass of the hydrogen-containing silicone oil. The hydrogen content of the hydrogen-containing silicone oil was 0.18%, and it was purchased from Kramar Ltd. The concentration of chloroplatinic acid in the chloroplatinic acid-isopropanol solution was 1wt%.

[0040] Example 5

[0041] A damping cloth for fine grinding of blue glass includes a damping cloth substrate layer, an adhesive layer and an abrasive layer arranged sequentially from top to bottom. The thickness of the damping cloth substrate layer is 0.2 mm, the thickness of the adhesive layer is 0.03 mm, and the thickness of the abrasive layer is 0.2 mm.

[0042] The preparation process of the damping cloth used for fine grinding of blue glass includes the following steps:

[0043] A polyurethane emulsion was coated on the surface of the damping cloth substrate and dried at 100°C for 60 minutes to form an adhesive layer on the surface of the damping cloth substrate. Then, the wear-resistant particles of the surface treatment in Example 1 were implanted into the adhesive layer using an electrostatic sand implantation method to obtain a semi-finished damping cloth. The semi-finished damping cloth was placed in a drying oven and pre-dried at 55°C for 20 minutes, and then heated to 80°C for 60 minutes to obtain the damping cloth for fine grinding of blue glass.

[0044] The polyurethane emulsion is prepared by the following steps:

[0045] 8g of polypropylene glycol was dehydrated under reduced pressure at 110℃ for 2h, and 1g of 2,2-dimethylolpropionic acid was dried under vacuum at 60℃ for 2h. The temperature was controlled at 80℃. 5g of toluene diisocyanate and polypropylene glycol were added to a flask and reacted for 1.5h. The temperature was then lowered to 75℃, and 0.1g of 1,4-butanediol, 2,2-dimethylolpropionic acid and 0.01g of dibutyltin dilaurate were added and reacted for 1h. Then 0.8g of the stabilizing component from Example 3 was added and the mixture was stirred for 1h. The temperature was then lowered to 35℃, and 0.1g of triethylamine was added. After stirring for 30min, 0.8g of ethylenediamine and 40g of deionized water were added and the mixture was stirred for another 30min to obtain a polyurethane prepolymer.

[0046] The damping cloth substrate is a 300-gram polyester nonwoven fabric.

[0047] Example 6

[0048] A damping cloth for fine grinding of blue glass includes a damping cloth substrate layer, an adhesive layer and an abrasive layer arranged sequentially from top to bottom. The thickness of the damping cloth substrate layer is 0.3 mm, the thickness of the adhesive layer is 0.05 mm, and the thickness of the abrasive layer is 0.3 mm.

[0049] The preparation process of the damping cloth used for fine grinding of blue glass includes the following steps:

[0050] A polyurethane emulsion was coated on the surface of the damping cloth substrate and dried at 110°C for 40 minutes to form an adhesive layer on the surface of the damping cloth substrate. Then, the wear-resistant particles of the surface treatment in Example 2 were implanted into the adhesive layer using an electrostatic sand implantation method to obtain a semi-finished damping cloth. The semi-finished damping cloth was placed in a drying oven and pre-dried at 58°C for 25 minutes, and then heated to 83°C for 70 minutes to obtain the damping cloth for fine grinding of blue glass.

[0051] The polyurethane emulsion is prepared by the following steps:

[0052] 10g of polypropylene glycol was dehydrated under reduced pressure at 115℃ for 2h, and 3g of 2,2-dimethylolpropionic acid was dried under vacuum at 60℃ for 2h. The temperature was controlled at 80℃. 7g of toluene diisocyanate and polypropylene glycol were added to a flask and reacted for 1.5h. The temperature was then lowered to 75℃, and 0.5g of 1,4-butanediol, 2,2-dimethylolpropionic acid and 0.02g of dibutyltin dilaurate were added and reacted for 1h. Then, 1g of the stabilizing component from Example 4 was added and the mixture was stirred for 1h. The temperature was then lowered to 35℃, and 0.1g of triethylamine was added. After stirring for 30min, 1.0g of ethylenediamine and 45g of deionized water were added and the mixture was stirred for another 30min to obtain a polyurethane prepolymer.

[0053] The damping fabric substrate is a polyamide nonwoven fabric with a density of 500 grams.

[0054] Example 7

[0055] A damping cloth for fine grinding of blue glass includes a damping cloth substrate layer, an adhesive layer and an abrasive layer arranged sequentially from top to bottom. The thickness of the damping cloth substrate layer is 0.4 mm, the thickness of the adhesive layer is 0.06 mm, and the thickness of the abrasive layer is 0.4 mm.

[0056] The preparation process of the damping cloth used for fine grinding of blue glass includes the following steps:

[0057] A polyurethane emulsion was coated on the surface of the damping cloth substrate and dried at 120°C for 60 minutes to form an adhesive layer on the surface of the damping cloth substrate. Then, the wear-resistant particles of the surface treatment in Example 2 were implanted into the adhesive layer using an electrostatic sand implantation method to obtain a semi-finished damping cloth. The semi-finished damping cloth was placed in a drying oven and pre-dried at 60°C for 30 minutes, and then heated to 85°C and dried for 80 minutes to obtain the damping cloth for fine grinding of blue glass.

[0058] The polyurethane emulsion is prepared by the following steps:

[0059] 20g of polypropylene glycol was dehydrated under reduced pressure at 120℃ for 2h, and 5g of 2,2-dimethylolpropionic acid was dried under vacuum at 60℃ for 2h. The temperature was controlled at 80℃. 10g of toluene diisocyanate and polypropylene glycol were added to a flask and reacted for 1.5h. The temperature was then lowered to 75℃, and 2g of 1,4-butanediol, 2,2-dimethylolpropionic acid and 0.03g of dibutyltin dilaurate were added and reacted for 1h. Then, 3g of the stabilizing component from Example 4 was added and the mixture was stirred for 1h. The temperature was then lowered to 35℃, and 0.1g of triethylamine was added. After stirring for 30min, 1.2g of ethylenediamine and 50g of deionized water were added and the mixture was stirred for another 30min to obtain a polyurethane prepolymer.

[0060] The damping fabric substrate is a polyamide nonwoven fabric with a density of 500 grams.

[0061] Comparative Example 1

[0062] Compared with Example 5, the stabilizing component in the polyurethane emulsion of Example 5 was removed, while the remaining raw materials and preparation process were the same as in Example 5.

[0063] Comparative Example 2

[0064] Compared with Example 5, the surface-treated wear-resistant particles of Example 5 were the same as those of Example 1, but the other raw materials and preparation process were the same as those of Example 5.

[0065] The damping fabrics obtained in Examples 5-7 and Comparative Examples 1-2 were subjected to performance tests, and the test contents are as follows:

[0066] (1) Polishing liquid resistance: The wear-resistant layer and adhesive layer of each group of damping cloth were immersed in polishing liquid for 100 hours. The wear-resistant particles of the wear-resistant layer were observed to see if they were loose and fell off. The polishing liquid was the product prepared in the embodiment of the invention patent with publication number CN111500198B.

[0067] (2) Polishing quality: Polishing was achieved using the damping cloth prepared in the examples and comparative examples. Blue glass of the same quality was polished for 1 hour, and it was observed whether scratches appeared on the surface of the blue glass.

[0068] The test results are shown in Table 1:

[0069] Table 1

[0070]

[0071] As can be seen from Table 1, compared with Comparative Example 1 and Comparative Example 2, the damping cloths prepared in Examples 5, 6 and 7 not only have a longer resistance to polishing liquid and a longer service life, but also have excellent polishing quality.

[0072] 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.

[0073] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A damping cloth for fine grinding of blue glass, characterized by, The damping cloth for blue glass fine grinding comprises, from top to bottom, a damping cloth substrate layer, a glue layer and an abrasive layer, wherein the thickness of the damping cloth substrate layer is 0.2-0.4 mm, the thickness of the glue layer is 0.03-0.06 mm, and the thickness of the abrasive layer is 0.2-0.4 mm; The preparation process of the damping cloth for blue glass fine grinding comprises the following steps: The surface of the damping cloth substrate is coated with polyurethane emulsion, and then dried at a temperature of 100-120 DEG C for 30-60 min; then the surface treatment wear-resistant particles are implanted onto the glue layer by electrostatic sanding method to obtain a semi-finished damping cloth; and then the semi-finished damping cloth is placed in a drying oven, pre-dried at 55-60 DEG C for 20-30 min, and then dried at 80-85 DEG C for 60-80 min to obtain the damping cloth for blue glass fine grinding. The polyurethane emulsion is prepared by the following steps: The polypropylene glycol is dehydrated at 110-120 DEG C under reduced pressure for 2 h, and the 2,2-dimethylol propionic acid is vacuum dried at 60 DEG C for 2 h; the temperature is controlled at 80 DEG C, and then toluene diisocyanate and polypropylene glycol are added into a flask; after reaction for 1.5 h, the temperature is lowered to 75 DEG C; 1,4-butanediol, 2,2-dimethylol propionic acid and dibutyl tin dilaurate are added and reacted for 1 h; then the stabilizing component is added and stirred for 1 h; the temperature is lowered to 35 DEG C, and then triethylamine is added and stirred for 30 min; then ethylenediamine and deionized water are added and stirred to obtain a polyurethane prepolymer. The stabilizing component is synthesized by using hydrogen-containing silicone oil, hexafluorobutyl methacrylate and glycidyl methacrylate as raw materials, and chloroplatinic acid-isopropyl alcohol solution as catalyst through silicon-hydrogen addition reaction; The surface treatment wear-resistant particles are amino-terminated hyperbranched polysiloxane modified wear-resistant particles; The stabilizing component is prepared by the following steps: The hydrogen-containing silicone oil, toluene, phenothiazine and chloroplatinic acid-isopropyl alcohol solution are sequentially added into a reaction kettle under nitrogen protection, and stirred for 10-15 min; then the temperature is raised to 85 DEG C, and hexafluorobutyl methacrylate toluene solution is slowly added dropwise; after the dropwise addition is completed, glycidyl methacrylate toluene solution is added dropwise; after the dropwise addition is completed, the temperature is continuously raised to 130 DEG C, and the stabilizing component is obtained after stirring for 20 h.

2. A damping cloth for fine grinding of blue glass according to claim 1, characterized in that, The mass ratio of toluene diisocyanate, polypropylene glycol, 1,4-butanediol, 2,2-dimethylol propionic acid, dibutyl tin dilaurate, stabilizing component, triethylamine, ethylenediamine and deionized water is 5-10:8-20:0.1-2:1-5:0.01-0.03:0.8-3:0.1:0.8-1.2:40-50.

3. A damping cloth for fine grinding of blue glass according to claim 1, characterized in that, The dosage ratio of hydrogen-containing silicone oil, phenothiazine, hexafluorobutyl methacrylate and glycidyl methacrylate is 100 g:0.03 g:0.09-0.12 mol:0.09-0.12 mol, and the dosage of chloroplatinic acid-isopropyl alcohol solution is 20-50 ppm of the mass of hydrogen-containing silicone oil.

4. The damping cloth for fine grinding of blue glass according to claim 1, wherein The surface treatment wear-resistant particles are prepared by the following steps: Step S1, 3-aminopropyl triethoxysilane and deionized water are added into a flask, stirred at 100-200 r / min for 10-20 min, then pH is adjusted to 5 by using concentrated hydrochloric acid, temperature is controlled at 50-60 DEG C, and stirring reaction is carried out for 4-6 h to obtain an amino-terminated hyperbranched polysiloxane; Step S2, wear-resistant particles, deionized water and anhydrous ethanol are mixed, pH is adjusted to 9 by using sodium hydroxide solution, the amino-terminated hyperbranched polysiloxane is added, temperature is controlled at 75-85 DEG C, and stirring reaction is carried out for 8-10 h to obtain surface-treated wear-resistant particles.

5. A damping cloth for fine grinding of blue glass according to claim 4, characterized in that, In step S1, the mass ratio of 3-aminopropyl triethoxysilane to deionized water is 30-40:60-80, and the mass fraction of concentrated hydrochloric acid is 37%.

6. A damping cloth for fine grinding of blue glass according to claim 4, characterized in that, In step S2, the amount ratio of wear-resistant particles, deionized water, anhydrous ethanol and the amino-terminated hyperbranched polysiloxane is 8-10 g:40-60 mL:40-60 mL:0.5-1 g, the mass fraction of sodium hydroxide solution is 40%, and the wear-resistant particles are composed of submicron cerium oxide, zirconium oxide, chromium oxide, rare earth, silicon dioxide and cobalt according to a mass ratio of 50-60:2-5:2-10:10-15:5-10:25-30.

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