Anti-static pressure monomer suitable for refractive index of 1.56 as well as preparation method and application of anti-static pressure monomer

Abstract

The invention discloses an anti-static pressure monomer suitable for the refractive index of 1.56 and a preparation method and application thereof, and belongs to the technical field of resin lens monomers. The invention relates to an anti-static pressure monomer suitable for a refractive index of 1.56. The anti-static pressure monomer comprises 10-12 parts of polycarbonate, 20-40 parts of polymethyl methacrylate, 5-10 parts of styrene, 10-15 parts of resin modified micro-nano particles, 2-5 parts of talcum powder, 1-3 parts of an ultraviolet light absorber and 1-3 parts of a curing agent. According to the invention, allyldiglycol carbonate is utilized to modify nano silicon dioxide, nano zinc oxide and micron silicon dioxide with the mass ratio of 1: 3: 2, and resin-nano particles-micron particles to form three-phase composite particles, and in the intermixing step of the lens preparation process, the dispersion degree is high, and the dispersion is uniform, so that the use amount of polycarbonate is reduced, and the production cost is reduced. The strength of the material is not reduced along with the reduction of the consumption of polycarbonate, but the toughness of the material is synergistically improved.

Description

Technical Field

[0001] This invention relates to an antistatic monomer suitable for a refractive index of 1.56, its preparation method and application, belonging to the technical field of resin lens monomers. Background Technology

[0002] Eyeglasses are subjected to various external pressures during wear, including pressure from the head, the weight of the glasses themselves, and vibrations from daily activities. If eyeglasses cannot effectively withstand these static pressures, it can lead to frame deformation, lens displacement, or breakage, thus affecting vision and comfort. Therefore, static pressure resistance is crucial for eyeglasses.

[0003] The primary purpose of static pressure resistance in eyeglasses is to ensure that they can withstand external pressure during use, maintaining their structural and functional stability. Static pressure resistance is a crucial consideration in the design and manufacturing of eyeglasses, aiming to ensure they can withstand various external pressures during use, maintaining their structural and functional stability, thereby providing a better wearing experience and vision protection.

[0004] Currently, MR-8™ lenses are among the best antistatic lenses available. MR-8™ lenses excel in antistatic properties, absorbing external energy and ensuring the wearer's comfort and safety. MR-8™ lenses significantly outperform materials like acrylic in tensile strength, demonstrating superior strength and durability. Notably, they only break when subjected to tensile forces up to 72kg, showcasing exceptional performance.

[0005] The main component of MR-8™ lenses is polyurethane resin (PU). MR-8™ has a refractive index of 1.60 and an Abbe number of 41, possessing the characteristics of high refractive index and high Abbe number, while also being impact-resistant, flexible, and easy to process. Its material structure gives the lenses a thinner and lighter profile, making them thinner than traditional 1.50 and 1.56 refractive index lenses for the same optical power. The material is not easily shattered during surface treatment, making it suitable for rimless, semi-rimless, and other special design frames. After processing, the lenses have strong resistance to hydrostatic loads, and are not prone to chipping even if dropped.

[0006] Polyurethane (PU) has excellent elasticity, tensile properties and hydrostatic resistance. However, polyurethane has relatively poor abrasion resistance and heat resistance. The surface of polyurethane (PU) is easily scratched. In addition, polyurethane (PU) tends to soften in hot water at 80°C. Prolonged immersion or boiling can easily cause the outer edge of the lens to warp.

[0007] Polycarbonate (PC) is a rigid polymer material with bisphenol A linked to carbonate groups. This stable cyclic molecular framework endows it with outstanding resistance to deformation and transparency, thus giving PC high transparency, heat resistance, weather resistance, and UV resistance. However, due to the rigid structure of PC, its tensile properties are low and its hydrostatic compressibility is poor. Therefore, there is an urgent need for a high-performance hydrostatic monomer suitable for a refractive index of 1.56, as well as its preparation method and applications. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide an antistatic monomer suitable for a refractive index of 1.56, which has excellent strength and toughness.

[0009] Meanwhile, the present invention provides a method for preparing an antistatic monomer suitable for a refractive index of 1.56. This method uses resin-modified micro-nano particles to improve toughness while ensuring rigidity, thereby improving its antistatic properties and tensile properties.

[0010] Meanwhile, this invention provides an application of an antistatic monomer suitable for a refractive index of 1.56.

[0011] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An antistatic monomer suitable for a refractive index of 1.56 comprises the following raw materials in parts by weight: 10-12 parts polycarbonate, 20-40 parts polymethyl methacrylate (PMMA), 5-10 parts styrene, 10-15 parts resin-modified micro / nano particles, 2-5 parts talc, 1-3 parts ultraviolet absorber, and 1-3 parts curing agent.

[0012] Preferably, the curing agent includes azobisisobutyronitrile.

[0013] Preferably, the ultraviolet absorber includes any one of 2-hydroxyphenyltriethyl ketone, 2-hydroxyphenol, and 2,4-dihydroxyphenol.

[0014] The preparation method of resin-modified micro / nanoparticles is as follows: Take 5-10 parts by weight of propylene diethylene glycol carbonate, add 10-20 parts by weight of anhydrous ethanol, and dissolve by ultrasonication to obtain a resin solution.

[0015] The micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2.

[0016] Take nano-silica, nano-zinc oxide and micron-sized silica (i.e., 10-15 parts by weight of micro-nano particles), add them to the resin solution, mechanically stir for at least 30 minutes, and then dry in a low-temperature oven, stirring for 5 minutes every 30 minutes of drying until there is no alcohol smell.

[0017] Preferably, the mechanical stirring speed is 100-200 rpm.

[0018] Preferably, the temperature of the low-temperature oven is 50-60℃.

[0019] After drying, the powder is crushed and sieved to obtain 500-800 mesh powder.

[0020] Preferably, the particle size of nano-silica is 10-30 nm, the particle size of nano-zinc oxide is 30-50 nm, and the particle size of micron-sized silica is 300-500 nm.

[0021] A method for preparing an antistatic monomer suitable for a refractive index of 1.56 includes the following steps: Step 1: Clean the mold; Step 2: Weigh the raw materials according to their weight proportions; Step 3, mixing the ingredients: Add polycarbonate, polymethyl methacrylate (PMMA), and styrene to a sealed mixing container and stir at 100-300 rpm for at least 1 hour at room temperature. Then add resin-modified micro / nano particles and talc powder, and stir at 100-300 rpm for at least 2 hours at room temperature to ensure uniform mixing without lumps. Step 4, Adding additives: Add the UV absorber to the sealed mixing tank and continue stirring at 100-300 rpm at room temperature until completely dispersed; finally, add the curing agent and increase the stirring speed to 500-600 rpm, stirring for at least 3 hours to ensure the curing agent is evenly mixed and to obtain the raw material powder; Step 5, Degassing treatment: Pour the raw material powder into a vacuum degassing machine for vacuum degassing treatment to obtain degassed raw material powder; Step 6, casting and molding: Preheat the clean and dry mold to 50-80℃; pour the deaerated raw material powder into the mold, ensuring that the deaerated raw material powder is filled evenly and without air bubbles; Step 7, Curing: The first curing temperature is 70-75℃, and the curing time is 5-10 hours, followed by a second curing. Secondary curing: Heat to 100-110℃ at a rate of 1-3℃ / min, cure for 2-4 hours, and then perform a third curing. Three-stage curing: Cool to 80-90℃ at a rate of 5-6℃ / min, cure for 3-4 hours, then air cool to room temperature; Step 8: Demolding; Step 9, Inspection: Inspect the refractive index and tensile properties of the lens.

[0022] Preferably, in step one, the cleaning method is as follows: the mold is subjected to multi-tank ultrasonic cleaning using N601 stock solution at 80°C, CT302 stock solution at 40°C, and R / O water and DI water at 50°C to obtain a clean mold surface, and then the mold is assembled under 0.6MPa air pressure conditions.

[0023] Preferably, in step eight, after curing, the resin is allowed to cool to room temperature in the mold, and then carefully demolded.

[0024] Preferably, after demolding, the lens is polished if necessary to remove excess edges and uneven parts.

[0025] Preferably, in step nine, the inspection also includes inspecting the optical performance and appearance quality of the lens to ensure that it meets the standards.

[0026] Application of an antistatic monomer with a refractive index of 1.56 in antistatic eyeglasses.

[0027] Application of an antistatic monomer suitable for a refractive index of 1.56 in resin lenses, optical lenses, and pressure-resistant optical lenses (such as underwater exploration lenses).

[0028] An antistatic eyeglasses is prepared from an antistatic monomer suitable for a refractive index of 1.56 according to the present invention.

[0029] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes resin-modified micro / nano particles in its raw materials. It employs propylene-based diethylene glycol carbonate to modify nano-silica, nano-zinc oxide, and micron-sized silica in a mass ratio of 1:3:2. The nano-silica has a particle size of 10-30 nm, the nano-zinc oxide has a particle size of 30-50 nm, and the micron-sized silica has a particle size of 300-500 nm. These resin-modified micro / nano particles form a three-phase composite particle structure. During the mixing step in lens preparation, this structure exhibits high and uniform dispersion. This allows the invention to reduce the amount of polycarbonate used without compromising material strength; instead, it synergistically enhances the material's strength and toughness. Consequently, this invention improves toughness while maintaining rigidity, enhances hydrostatic pressure resistance, and improves tensile properties. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to specific embodiments. The following embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Example 1

[0031] An antistatic monomer suitable for a refractive index of 1.56 comprises the following raw materials in parts by weight: 11 parts polycarbonate, 30 parts polymethyl methacrylate (PMMA), 8 parts styrene, 12 parts resin-modified micro / nano particles, 3 parts talc, 2 parts ultraviolet absorber (2-hydroxyphenyltriethyl ketone), and 2 parts curing agent (azobisisobutyronitrile).

[0032] The preparation method of resin-modified micro-nano particles is as follows: Take 8 parts by weight of propylene diethylene glycol carbonate, add 15 parts by weight of anhydrous ethanol, and disperse and dissolve by ultrasonication (100Hz for 40 min) to obtain a resin solution.

[0033] The micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2.

[0034] The particle size range of nano-silica is 10-30nm, the particle size range of nano-zinc oxide is 30-50nm, and the particle size range of micron-sized silica is 300-500nm.

[0035] Take nano-silica, nano-zinc oxide and micron-sized silica (i.e., 12 parts by weight of micro-nano particles), add them to the above resin solution, mechanically stir at 150 rpm for 30 min, and then dry in a low temperature oven at 55℃. Stir for 5 min every 30 min of drying until there is no alcohol smell.

[0036] After drying, the powder is crushed and sieved to obtain 600-mesh powder, which is the resin-modified micro-nano particles.

[0037] A method for preparing an antistatic monomer suitable for a refractive index of 1.56 includes the following steps: Step 1: Clean the mold. The cleaning method is as follows: use N601 stock solution at 80℃, CT302 stock solution at 40℃ and R / O water and DI water at 50℃ to perform multi-tank ultrasonic cleaning on the mold to obtain a clean surface. Then assemble the mold under 0.6MPa air pressure.

[0038] Step 2: Weigh the raw materials according to their weight proportions; Step 3, mixing the ingredients: Add polycarbonate, polymethyl methacrylate (PMMA), and styrene to a sealed mixing tank and stir at 150 rpm for 1 hour at room temperature. Then add resin-modified micro / nano particles and talc powder and stir at 150 rpm for 2 hours at room temperature to ensure uniform mixing without lumps. Step 4, Adding additives: Add the UV absorber to the sealed mixing tank and continue stirring at 150 rpm at room temperature until completely dispersed; finally, add the curing agent and increase the stirring speed to 550 rpm, stir for 3 hours to ensure the curing agent is evenly mixed and obtain the raw material powder; Step 5, Degassing treatment: Pour the raw material powder into a vacuum degassing machine for vacuum degassing treatment to obtain degassed raw material powder; Step 6, Casting and Molding: Preheat the clean and dry mold to 60°C; pour the deaerated raw material powder into the mold, ensuring that the deaerated raw material powder is evenly filled and free of air bubbles; Step 7, Curing: The first curing temperature is 72℃, and the curing time is 8 hours, followed by a second curing. Secondary curing: The temperature is increased to 105℃ at a rate of 2℃ / min, and the curing time is 3h, followed by a third curing. Three-stage curing: The temperature is lowered to 85°C at a rate of 5.5°C / min, and the curing time is 3.5 hours, followed by air cooling to room temperature; After curing, allow the resin to cool to room temperature in the mold, then carefully demold. Step 8, demolding; after demolding, if necessary, polish the lens to remove excess edges and uneven parts; Step 9, Inspection: Inspect the refractive index and tensile properties of the lens.

[0039] In this embodiment, the inspection also includes testing the optical performance and appearance quality of the lens to ensure compliance with standards. Upon inspection, the lens obtained in this embodiment meets the standards for transparency, refractive index, haze value, pencil hardness, impact toughness, and tensile strength.

[0040] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in antistatic eyeglasses.

[0041] An antistatic eyeglasses is prepared from an antistatic monomer with a refractive index of 1.56 according to this embodiment.

[0042] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in resin lenses, optical lenses, and pressure-resistant optical lenses (such as underwater exploration lenses). Example 2

[0043] An antistatic monomer suitable for a refractive index of 1.56 comprises the following raw materials in parts by weight: 10 parts polycarbonate, 20 parts polymethyl methacrylate (PMMA), 5 parts styrene, 10 parts resin-modified micro / nano particles, 2 parts talc, 1 part ultraviolet absorber (2-hydroxyphenol), and 1 part curing agent (azobisisobutyronitrile).

[0044] The preparation method of resin-modified micro-nano particles is as follows: Take 5 parts by weight of propylene diethylene glycol carbonate, add 10 parts by weight of anhydrous ethanol, and disperse and dissolve by ultrasonication (80Hz for 60min) to obtain a resin solution.

[0045] The micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2.

[0046] The particle size range of nano-silica is 10-30nm, the particle size range of nano-zinc oxide is 30-50nm, and the particle size range of micron-sized silica is 300-500nm.

[0047] Take nano-silica, nano-zinc oxide and micron-sized silica (i.e., 10 parts by weight of micro-nano particles), add them to the above resin solution, mechanically stir at 100 rpm for 60 min, and then dry in a low temperature oven at 50℃. Stir for 5 min every 30 min of drying until there is no alcohol smell.

[0048] After drying, the powder is crushed and sieved to obtain 500-mesh powder, which is the resin-modified micro-nano particles.

[0049] A method for preparing an antistatic monomer suitable for a refractive index of 1.56 includes the following steps: Step 1: Clean the mold. The cleaning method is as follows: use N601 stock solution at 80℃, CT302 stock solution at 40℃ and R / O water and DI water at 50℃ to perform multi-tank ultrasonic cleaning on the mold to obtain a clean surface. Then assemble the mold under 0.6MPa air pressure.

[0050] Step 2: Weigh the raw materials according to their weight proportions; Step 3, mixing the ingredients: Add polycarbonate, polymethyl methacrylate (PMMA), and styrene to a sealed mixing tank and mix at 100 rpm for 1.5 hours at room temperature. Then add resin-modified micro / nano particles and talc powder, and mix at 100 rpm for another 3 hours at room temperature to ensure uniform mixing without lumps. Step 4, Adding additives: Add the UV absorber to the sealed mixing tank and continue stirring at 100 rpm at room temperature until completely dispersed; finally, add the curing agent and increase the stirring speed to 500 rpm, stir for 4 hours to ensure the curing agent is evenly mixed and obtain the raw material powder; Step 5, Degassing treatment: Pour the raw material powder into a vacuum degassing machine for vacuum degassing treatment to obtain degassed raw material powder; Step 6, Casting and Molding: Preheat the clean and dry mold to 50°C; pour the deaerated raw material powder into the mold, ensuring that the deaerated raw material powder is evenly filled and free of air bubbles; Step 7, Curing: The first curing temperature is 70℃, and the curing time is 5 hours, followed by a second curing. Secondary curing: Heat to 100℃ at a rate of 1℃ / min, cure for 2 hours, and then perform a third curing. Three-stage curing: Cool to 80°C at a rate of 5°C / min, cure for 3 hours, then air cool to room temperature; After curing, allow the resin to cool to room temperature in the mold, then carefully demold. Step 8, demolding; after demolding, if necessary, polish the lens to remove excess edges and uneven parts; Step 9, Inspection: Inspect the refractive index and tensile properties of the lens.

[0051] In this embodiment, the inspection also includes testing the optical performance and appearance quality of the lens to ensure compliance with standards. Upon inspection, the lens obtained in this embodiment meets the standards for transparency, refractive index, haze value, pencil hardness, impact toughness, and tensile strength.

[0052] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in antistatic eyeglasses.

[0053] An antistatic eyeglasses is prepared from an antistatic monomer with a refractive index of 1.56 according to this embodiment.

[0054] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in resin lenses, optical lenses, and pressure-resistant optical lenses (such as underwater exploration lenses). Example 3

[0055] An antistatic monomer suitable for a refractive index of 1.56 comprises the following raw materials in parts by weight: 12 parts polycarbonate, 40 parts polymethyl methacrylate (PMMA), 10 parts styrene, 15 parts resin-modified micro / nano particles, 5 parts talc, 3 parts ultraviolet absorber (2,4-dihydroxyphenol), and 3 parts curing agent (azobisisobutyronitrile).

[0056] The preparation method of resin-modified micro-nano particles is as follows: Take 10 parts by weight of propylene diethylene glycol carbonate, add 20 parts by weight of anhydrous ethanol, and disperse and dissolve by ultrasonication (120Hz for 30 minutes) to obtain a resin solution.

[0057] The micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2.

[0058] The particle size range of nano-silica is 10-30nm, the particle size range of nano-zinc oxide is 30-50nm, and the particle size range of micron-sized silica is 300-500nm.

[0059] Take nano-silica, nano-zinc oxide and micron-sized silica (i.e., 15 parts by weight of micro-nano particles), add them to the above resin solution, mechanically stir at 200 rpm for 40 min, and then dry in a low temperature oven at 60℃. Stir for 5 min every 30 min of drying until there is no alcohol smell.

[0060] After drying, the powder is crushed and sieved to obtain 800-mesh powder, which is the resin-modified micro-nano particles.

[0061] A method for preparing an antistatic monomer suitable for a refractive index of 1.56 includes the following steps: Step 1: Clean the mold. The cleaning method is as follows: use N601 stock solution at 80℃, CT302 stock solution at 40℃ and R / O water and DI water at 50℃ to perform multi-tank ultrasonic cleaning on the mold to obtain a clean surface. Then assemble the mold under 0.6MPa air pressure.

[0062] Step 2: Weigh the raw materials according to their weight proportions; Step 3, mixing the ingredients: Add polycarbonate, polymethyl methacrylate (PMMA), and styrene to a sealed mixing tank and stir at 300 rpm for 1 hour at room temperature. Then add resin-modified micro / nano particles and talc powder, and stir at 300 rpm for another 2.5 hours at room temperature to ensure uniform mixing without lumps. Step 4, Adding additives: Add the UV absorber to the sealed mixing tank and continue stirring at 300 rpm at room temperature until completely dispersed; finally, add the curing agent and increase the stirring speed to 600 rpm, stir for 3.5 hours to ensure that the curing agent is evenly mixed and obtain the raw material powder; Step 5, Degassing treatment: Pour the raw material powder into a vacuum degassing machine for vacuum degassing treatment to obtain degassed raw material powder; Step 6, Casting and Molding: Preheat the clean and dry mold to 80°C; pour the deaerated raw material powder into the mold, ensuring that the deaerated raw material powder is evenly filled and free of air bubbles; Step 7, Curing: The first curing temperature is 75℃ and the curing time is 10 hours, followed by a second curing. Secondary curing: The temperature is increased to 110℃ at a rate of 3℃ / min, and the curing time is 4h, followed by a third curing. Three-stage curing: The temperature is lowered to 90°C at a rate of 6°C / min, and the curing time is 4 hours, followed by air cooling to room temperature; After curing, allow the resin to cool to room temperature in the mold, then carefully demold. Step 8, demolding; after demolding, if necessary, polish the lens to remove excess edges and uneven parts; Step 9, Inspection: Inspect the refractive index and tensile properties of the lens.

[0063] In this embodiment, the inspection also includes testing the optical performance and appearance quality of the lens to ensure compliance with standards. Upon inspection, the lens obtained in this embodiment meets the standards for transparency, refractive index, haze value, pencil hardness, impact toughness, and tensile strength.

[0064] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in antistatic eyeglasses.

[0065] An antistatic eyeglasses is prepared from an antistatic monomer with a refractive index of 1.56 according to this embodiment.

[0066] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in resin lenses, optical lenses, and pressure-resistant optical lenses (such as underwater exploration lenses). Example 4

[0067] An antistatic monomer suitable for a refractive index of 1.56 comprises the following raw materials in parts by weight: 10.5 parts polycarbonate, 25 parts polymethyl methacrylate (PMMA), 6 parts styrene, 11 parts resin-modified micro / nano particles, 4 parts talc, 1.5 parts ultraviolet absorber (2,4-dihydroxyphenol), and 2.5 parts curing agent (azobisisobutyronitrile).

[0068] The preparation method of resin-modified micro-nano particles is as follows: Take 6 parts by weight of propylene diethylene glycol carbonate, add 10 parts by weight of anhydrous ethanol, and disperse and dissolve by ultrasonication (100Hz for 60 min) to obtain a resin solution.

[0069] The micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2.

[0070] The particle size range of nano-silica is 10-30nm, the particle size range of nano-zinc oxide is 30-50nm, and the particle size range of micron-sized silica is 300-500nm.

[0071] Take nano-silica, nano-zinc oxide and micron-sized silica (i.e., 11 parts by weight of micro-nano particles), add them to the above resin solution, mechanically stir at 180 rpm for 50 min, and then dry in a low temperature oven at 55℃. Stir for 5 min every 30 min of drying until there is no alcohol smell.

[0072] After drying, the powder is crushed and sieved to obtain 500-mesh powder, which is the resin-modified micro-nano particles.

[0073] A method for preparing an antistatic monomer suitable for a refractive index of 1.56 includes the following steps: Step 1: Clean the mold. The cleaning method is as follows: use N601 stock solution at 80℃, CT302 stock solution at 40℃ and R / O water and DI water at 50℃ to perform multi-tank ultrasonic cleaning on the mold to obtain a clean surface. Then assemble the mold under 0.6MPa air pressure.

[0074] Step 2: Weigh the raw materials according to their weight proportions; Step 3, mixing the ingredients: Add polycarbonate, polymethyl methacrylate (PMMA), and styrene to a sealed mixing tank and stir at 200 rpm for 1 hour at room temperature. Then add resin-modified micro / nano particles and talc powder, and stir at 200 rpm for another 2.5 hours at room temperature to ensure uniform mixing without lumps. Step 4, Adding additives: Add the UV absorber to the sealed mixing tank and continue stirring at 200 rpm at room temperature until completely dispersed; finally, add the curing agent and increase the stirring speed to 500 rpm, stir for 5 hours to ensure the curing agent is evenly mixed and obtain the raw material powder; Step 5, Degassing treatment: Pour the raw material powder into a vacuum degassing machine for vacuum degassing treatment to obtain degassed raw material powder; Step 6, Casting and Molding: Preheat the clean and dry mold to 70°C; pour the deaerated raw material powder into the mold, ensuring that the deaerated raw material powder is evenly filled and free of air bubbles; Step 7, Curing: The first curing temperature is 75℃, and the curing time is 5 hours, followed by a second curing. Secondary curing: The temperature is increased to 110℃ at a rate of 2℃ / min, and the curing time is 2h, followed by a third curing. Three-stage curing: The temperature is lowered to 90°C at a rate of 6°C / min, and the curing time is 3 hours, followed by air cooling to room temperature; After curing, allow the resin to cool to room temperature in the mold, then carefully demold. Step 8, demolding; after demolding, if necessary, polish the lens to remove excess edges and uneven parts; Step 9, Inspection: Inspect the refractive index and tensile properties of the lens.

[0075] In this embodiment, the inspection also includes testing the optical performance and appearance quality of the lens to ensure compliance with standards. Upon inspection, the lens obtained in this embodiment meets the standards for transparency, refractive index, haze value, pencil hardness, impact toughness, and tensile strength.

[0076] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in antistatic eyeglasses.

[0077] An antistatic eyeglasses is prepared from an antistatic monomer with a refractive index of 1.56 according to this embodiment.

[0078] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in resin lenses, optical lenses, and pressure-resistant optical lenses (such as underwater exploration lenses). Example 5

[0079] An antistatic monomer suitable for a refractive index of 1.56 comprises the following raw materials in parts by weight: 11.5 parts polycarbonate, 35 parts polymethyl methacrylate (PMMA), 9 parts styrene, 14 parts resin-modified micro / nano particles, 2.5 parts talc, 3 parts ultraviolet absorber (2,4-dihydroxyphenol), and 1 part curing agent (azobisisobutyronitrile).

[0080] The preparation method of resin-modified micro-nano particles is as follows: Take 9 parts by weight of propylene diethylene glycol carbonate, add 10 parts by weight of anhydrous ethanol, and disperse and dissolve by ultrasonication (100Hz for 80min) to obtain a resin solution.

[0081] The micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2.

[0082] The particle size range of nano-silica is 10-30nm, the particle size range of nano-zinc oxide is 30-50nm, and the particle size range of micron-sized silica is 300-500nm.

[0083] Take nano-silica, nano-zinc oxide and micron-sized silica (i.e., 14 parts by weight of micro-nano particles), add them to the above resin solution, mechanically stir at 120 rpm for 30 min, and then dry in a low temperature oven at 50℃. Stir for 5 min every 30 min of drying until there is no alcohol smell.

[0084] After drying, the powder is crushed and sieved to obtain 700-mesh powder, which is the resin-modified micro-nano particles.

[0085] A method for preparing an antistatic monomer suitable for a refractive index of 1.56 includes the following steps: Step 1: Clean the mold. The cleaning method is as follows: use N601 stock solution at 80℃, CT302 stock solution at 40℃ and R / O water and DI water at 50℃ to perform multi-tank ultrasonic cleaning on the mold to obtain a clean surface. Then assemble the mold under 0.6MPa air pressure.

[0086] Step 2: Weigh the raw materials according to their weight proportions; Step 3, mixing the ingredients: Add polycarbonate, polymethyl methacrylate (PMMA), and styrene to a sealed mixing tank and mix at 250 rpm for 2 hours at room temperature. Then add resin-modified micro / nano particles and talc powder, and mix at 250 rpm for 2 hours at room temperature to ensure uniform mixing without lumps. Step 4, Adding additives: Add the UV absorber to the sealed mixing tank and continue stirring at 250 rpm at room temperature until completely dispersed; finally, add the curing agent and increase the stirring speed to 500 rpm, stir for 3 hours to ensure the curing agent is evenly mixed and obtain the raw material powder; Step 5, Degassing treatment: Pour the raw material powder into a vacuum degassing machine for vacuum degassing treatment to obtain degassed raw material powder; Step 6, Casting and Molding: Preheat the clean and dry mold to 75°C; pour the deaerated raw material powder into the mold, ensuring that the deaerated raw material powder is evenly filled and free of air bubbles; Step 7, Curing: The first curing temperature is 70℃ and the curing time is 10 hours, followed by a second curing. Secondary curing: The temperature is increased to 100℃ at a rate of 2.5℃ / min, and the curing time is 4 hours, followed by a third curing. Three-stage curing: The temperature is lowered to 80°C at a rate of 5°C / min, and the curing time is 4 hours, followed by air cooling to room temperature; After curing, allow the resin to cool to room temperature in the mold, then carefully demold. Step 8, demolding; after demolding, if necessary, polish the lens to remove excess edges and uneven parts; Step 9, Inspection: Inspect the refractive index and tensile properties of the lens.

[0087] In this embodiment, the inspection also includes testing the optical performance and appearance quality of the lens to ensure compliance with standards. Upon inspection, the lens obtained in this embodiment meets the standards for transparency, refractive index, haze value, pencil hardness, impact toughness, and tensile strength.

[0088] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in antistatic eyeglasses.

[0089] An antistatic eyeglasses is prepared from an antistatic monomer with a refractive index of 1.56 according to this embodiment.

[0090] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in resin lenses, optical lenses, and pressure-resistant optical lenses (such as underwater exploration lenses). Example 6

[0091] An antistatic monomer suitable for a refractive index of 1.56 comprises the following raw materials in parts by weight: 11 parts polycarbonate, 28 parts polymethyl methacrylate (PMMA), 7.5 parts styrene, 14.5 parts resin-modified micro / nano particles, 3 parts talc, 1 part ultraviolet absorber (2-hydroxyphenol), and 2 parts curing agent (azobisisobutyronitrile).

[0092] The preparation method of resin-modified micro-nano particles is as follows: Take 7 parts by weight of propylene diethylene glycol carbonate, add 20 parts by weight of anhydrous ethanol, and disperse and dissolve by ultrasonication (100Hz for 60 min) to obtain a resin solution.

[0093] The micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2.

[0094] The particle size range of nano-silica is 10-30nm, the particle size range of nano-zinc oxide is 30-50nm, and the particle size range of micron-sized silica is 300-500nm.

[0095] Take nano-silica, nano-zinc oxide and micron-sized silica (i.e., 14 parts by weight of micro-nano particles), add them to the above resin solution, mechanically stir at 100 rpm for 30 min, and then dry in a low temperature oven at 50℃. Stir for 5 min every 30 min of drying until there is no alcohol smell.

[0096] After drying, the powder is crushed and sieved to obtain 600-mesh powder, which is the resin-modified micro-nano particles.

[0097] A method for preparing an antistatic monomer suitable for a refractive index of 1.56 includes the following steps: Step 1: Clean the mold. The cleaning method is as follows: use N601 stock solution at 80℃, CT302 stock solution at 40℃ and R / O water and DI water at 50℃ to perform multi-tank ultrasonic cleaning on the mold to obtain a clean surface. Then assemble the mold under 0.6MPa air pressure.

[0098] Step 2: Weigh the raw materials according to their weight proportions; Step 3, mixing the ingredients: Add polycarbonate, polymethyl methacrylate (PMMA), and styrene to a sealed mixing tank and stir at 180 rpm for 1 hour at room temperature. Then add resin-modified micro / nano particles and talc powder and stir at 250 rpm for 2 hours at room temperature to ensure uniform mixing without lumps. Step 4, Adding additives: Add the UV absorber to the sealed mixing tank and continue stirring at 180 rpm at room temperature until completely dispersed; finally, add the curing agent and increase the stirring speed to 600 rpm, stir for 3 hours to ensure the curing agent is evenly mixed and obtain the raw material powder; Step 5, Degassing treatment: Pour the raw material powder into a vacuum degassing machine for vacuum degassing treatment to obtain degassed raw material powder; Step 6, Casting and Molding: Preheat the clean and dry mold to 65°C; pour the deaerated raw material powder into the mold, ensuring that the deaerated raw material powder is evenly filled and free of air bubbles; Step 7, Curing: The first curing temperature is 70℃ and the curing time is 6 hours, followed by a second curing. Secondary curing: The temperature is increased to 105℃ at a rate of 1.5℃ / min, and the curing time is 2 hours, followed by a third curing. Three-stage curing: The temperature is lowered to 90°C at a rate of 5°C / min, and the curing time is 4 hours, followed by air cooling to room temperature; After curing, allow the resin to cool to room temperature in the mold, then carefully demold. Step 8, demolding; after demolding, if necessary, polish the lens to remove excess edges and uneven parts; Step 9, Inspection: Inspect the refractive index and tensile properties of the lens.

[0099] In this embodiment, the inspection also includes testing the optical performance and appearance quality of the lens to ensure compliance with standards. Upon inspection, the lens obtained in this embodiment meets the standards for transparency, refractive index, haze value, pencil hardness, impact toughness, and tensile strength.

[0100] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in antistatic eyeglasses.

[0101] An antistatic eyeglasses is prepared from an antistatic monomer with a refractive index of 1.56 according to this embodiment.

[0102] This embodiment describes the application of an antistatic monomer with a refractive index of 1.56 in resin lenses, optical lenses, and pressure-resistant optical lenses (such as underwater exploration lenses).

[0103] Comparative Example 1

[0104] The only difference between this comparative example and Example 1 is that the micro / nanoparticles were not modified with resin.

[0105] Specifically, a monomer comprises the following raw materials in parts by weight: 11 parts polycarbonate, 30 parts polymethyl methacrylate (PMMA), 8 parts styrene, 8 parts propylene diethylene glycol carbonate, 4 parts micro / nano particles, 3 parts talc, 2 parts ultraviolet absorber, and 2 parts curing agent.

[0106] The micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2.

[0107] The particle size range of nano-silica is 10-30nm, the particle size range of nano-zinc oxide is 30-50nm, and the particle size range of micron-sized silica is 300-500nm.

[0108] A method for preparing an antistatic monomer suitable for a refractive index of 1.56 includes the following steps: Step 1: Clean the mold. The cleaning method is as follows: use N601 stock solution at 80℃, CT302 stock solution at 40℃ and R / O water and DI water at 50℃ to perform multi-tank ultrasonic cleaning on the mold to obtain a clean surface. Then assemble the mold under 0.6MPa air pressure.

[0109] Step 2: Weigh the raw materials according to their weight proportions; Step 3, Raw material mixing: Add polycarbonate, polymethyl methacrylate (PMMA), styrene and acrylonitrile diethylene glycol carbonate to a sealed mixing tank and mix at 150 rpm for 1 hour at room temperature. Then add micro-nano particles and talc powder and mix at 150 rpm for another 2 hours at room temperature to ensure uniform mixing without lumps; the rest is the same as in Example 1.

[0110] Comparative Example 2

[0111] The only difference between this comparative example and Example 1 is that the micro / nanoparticles are replaced with nanoparticles, which consist only of nano-silica and nano-zinc oxide in a mass ratio of 1:3, excluding micron-sized micron-sized silica. Everything else is the same as in Example 1.

[0112] Comparative Example 3

[0113] The only difference between this comparative example and Example 1 is that the micro / nanoparticles include nano-silica, nano-zinc oxide and micron-sized silica in a mass ratio of 1:3:3.

[0114] Comparative Example 4

[0115] The only difference between this comparative example and Example 1 is that the micro / nanoparticles include nano-silica, nano-zinc oxide and micron-sized silica in a mass ratio of 1:3:1.

[0116] Comparative Example 5

[0117] The only difference between this comparative example and Example 1 is that the curing process uses a two-stage curing method. The first curing temperature is 75℃, and the curing time is 5 hours, followed by a second curing. Secondary curing: Heat to 110℃ at a rate of 2℃ / min, cure for 2 hours, and then air cool to room temperature.

[0118] Comparative Example 6

[0119] The only difference between this comparative example and Example 1 is that the curing process uses a four-stage curing method. The first curing temperature is 75℃, and the curing time is 5 hours, followed by a second curing. Secondary curing: The temperature is increased to 110℃ at a rate of 2℃ / min, and the curing time is 2h, followed by a third curing. Three curing steps: The temperature is lowered to 90℃ at a rate of 6℃ / min, and the curing time is 3h, followed by four curing steps; Four-stage curing: The temperature is lowered to 65°C at a rate of 2°C / min, and the curing time is 5 hours, followed by air cooling to room temperature.

[0120] Comparative Example 7

[0121] The only difference between this comparative example and Example 1 is that the curing temperature and rate are lower than those of Example 1.

[0122] The first curing temperature is 65℃ and the curing time is 8 hours, followed by a second curing. Secondary curing: The temperature is increased to 90℃ at a rate of 0.5℃ / min, and the curing time is 3h, followed by a third curing. Three-stage curing: The temperature is lowered to 70°C at a rate of 4°C / min, and the curing time is 3.5 hours, followed by air cooling to room temperature.

[0123] Comparative Example 8

[0124] The only difference between this comparative example and Example 1 is that the curing temperature and rate are higher than those of Example 1.

[0125] The first curing temperature is 80℃, and the curing time is 8 hours, followed by a second curing. Secondary curing: The temperature is increased to 120℃ at a rate of 4℃ / min, and the curing time is 3h, followed by a third curing. Three-stage curing: The temperature is lowered to 100°C at a rate of 7°C / min, and the curing time is 3.5h, followed by air cooling to room temperature.

[0126] The transmittance and refractive index were tested according to QB / T 2506-2017 "Optical Resin Lenses for Eyeglasses"; the abrasion resistance and scratch resistance were tested according to GB 10810.5-2012 "Eyeglasses - Part 5: Abrasion Resistance Requirements for Lens Surfaces". For lenses explicitly labeled as "abrasion resistant", the haze value, after calculation based on test 5.2.5 and haze value 6.2, should be ≤0.8%; the hardness was tested according to GB / T 6739-2006 "Paints and Varnishes - Determination of Hardness of Paint Films by Pencil Method"; and the impact toughness was tested according to GB / T1043.1-2008 "Rigid Plastics - Simple Supported Beam Impact Test Method". The mechanical properties of the plastic under static tensile load were determined according to GB / T 1040-2025 "Determination of Tensile Properties of Plastics - Part 1: General Rules", i.e., the tensile strength of the lens. Specific test results are shown in Table 1 below.

[0127] Table 1 Light transmittance (%) Refractive index Haze value (%) Pencil hardness (H) <![CDATA[Impact toughness (kJ / m 2 )]]> Tensile strength (MPa) Example 1 99 1.56 0.25 5 356 150 Example 2 95 1.56 0.31 5 334 139 Example 3 98 1.56 0.28 5 367 135 Example 4 98 1.56 0.32 5 321 128 Example 5 97 1.56 0.40 5 340 137 Example 6 98 1.56 0.33 5 323 131 Comparative Example 1 90 1.49 0.83 4 224 98 Comparative Example 2 88 1.49 0.85 4 256 92 Comparative Example 3 92 1.49 0.57 5 275 105 Comparative Example 4 93 1.49 0.48 5 287 110 Comparative Example 5 85 1.49 0.75 4 248 100 Comparative Example 6 90 1.49 0.56 5 259 109 Comparative Example 7 91 1.49 0.42 5 263 114 Comparative Example 8 90 1.49 0.49 5 255 111 In the prior art, the tensile strength of MR-8™ lenses is greater than 80 MPa, but far lower than the tensile strength of the present invention.

[0128] It should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, features of the invention are sometimes grouped together in a single embodiment or description thereof in the above description of exemplary embodiments of the invention. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than expressly recited in each claim. Rather, as reflected in the claims, inventive aspects lie in fewer than all the features of the foregoingly disclosed embodiments. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0129] Although the invention has been described with reference to a limited number of embodiments, those skilled in the art will understand from the foregoing description that other embodiments are conceivable within the scope of the invention described herein. Furthermore, it should be noted that the language used in this specification has been chosen primarily for readability and edibility purposes, and not for the purpose of interpreting or limiting the subject matter of the invention. Therefore, many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the appended claims. The disclosure of the invention is illustrative and not restrictive, and the scope of the invention is defined by the appended claims.

[0130] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hydrostatic monomer suitable for a refractive index of 1.56, characterized in that, The raw materials include the following components by weight: 10-12 parts polycarbonate, 20-40 parts polymethyl methacrylate (PMMA), 5-10 parts styrene, 10-15 parts resin-modified micro / nano particles, 2-5 parts talc, 1-3 parts ultraviolet absorber, and 1-3 parts curing agent.

2. The antistatic monomer suitable for a refractive index of 1.56 according to claim 1, characterized in that, The curing agent includes azobisisoheptanenitrile; the ultraviolet absorber includes any one of 2-hydroxyphenyltriethyl ketone, 2-hydroxyphenol, and 2,4-dihydroxyphenol.

3. The antistatic monomer suitable for a refractive index of 1.56 according to claim 1, characterized in that, The preparation method of resin-modified micro / nanoparticles is as follows: Take 5-10 parts by weight of propylene diethylene glycol carbonate, add 10-20 parts by weight of anhydrous ethanol, and disperse and dissolve it by ultrasonication to obtain a resin solution; Micro- and nano-particles include nano-silica, nano-zinc oxide, and micro-silica in a mass ratio of 1:3:2; Take nano-silica, nano-zinc oxide and micron-sized silica, add them to the resin solution, stir mechanically for at least 30 minutes, and then dry in a low temperature oven, stirring for 5 minutes every 30 minutes of drying until there is no alcohol smell; After drying, the powder is crushed and sieved to obtain 500-800 mesh powder.

4. The antistatic monomer suitable for a refractive index of 1.56 according to claim 3, characterized in that, The mechanical stirring speed is 100-200 rpm.

5. A hydrostatic monomer suitable for a refractive index of 1.56 according to claim 3, characterized in that, The temperature of the low-temperature oven is 50-60℃.

6. The antistatic monomer suitable for a refractive index of 1.56 according to claim 3, characterized in that, The particle size of nano-silica is 10-30nm, the particle size of nano-zinc oxide is 30-50nm, and the particle size of micron-sized silica is 300-500nm.

7. A method for preparing an antistatic monomer with a refractive index of 1.56 according to any one of claims 1 to 6, comprising the following steps: Step 1: Clean the mold; Step 2: Weigh the raw materials according to their weight proportions; Step 3, mixing the ingredients: Add polycarbonate, polymethyl methacrylate (PMMA), and styrene to a sealed mixing tank and stir at 100-300 rpm for at least 1 hour at room temperature. Then add resin-modified micro / nano particles and talc and stir at 100-300 rpm for at least 2 hours at room temperature to ensure uniform mixing without lumps. Step 4, Adding additives: Add the UV absorber to the sealed mixing tank and continue stirring at 100-300 rpm at room temperature until completely dispersed; finally, add the curing agent and increase the stirring speed to 500-600 rpm, stirring for at least 3 hours to ensure the curing agent is evenly mixed and to obtain the raw material powder; Step 5, Degassing treatment: Pour the raw material powder into a vacuum degassing machine for vacuum degassing treatment to obtain degassed raw material powder; Step 6, casting and molding: Preheat the clean and dry mold to 50-80℃; pour the deaerated raw material powder into the mold, ensuring that the deaerated raw material powder is filled evenly and without air bubbles; Step 7, Curing: The first curing temperature is 70-75℃, and the curing time is 5-10 hours, followed by a second curing. Secondary curing: Heat to 100-110℃ at a rate of 1-3℃ / min, cure for 2-4 hours, and then perform a third curing. Three-stage curing: Cool to 80-90℃ at a rate of 5-6℃ / min, cure for 3-4 hours, then air cool to room temperature; Step 8: Demolding; Step nine: Inspection.

8. The application of an antistatic monomer with a refractive index of 1.56 as described in any one of claims 1 to 6 in antistatic eyeglasses, resin lenses, and pressure-resistant optical lenses.

9. The application of an antistatic monomer with a refractive index of 1.56 obtained by the preparation method according to claim 7 in antistatic eyeglasses, resin lenses, and pressure-resistant optical lenses.

10. An antistatic eyeglass, prepared according to any one of claims 1 to 6 using an antistatic monomer with a refractive index of 1.56.