Impact-resistant resin lens and its preparation process

Abstract

The invention discloses an impact-resistant resin lens and a preparation process thereof, comprising a waterproof layer, a hardening layer, an antistatic layer, an adhesive layer, a wear-resistant layer and a base layer, and the process comprises the following steps: one, preparing raw materials; two, making a base; three, making a hardening and wear-resistant liquid; four, pre-treating the base; and five, coating in steps. Compared with the existing resin lens, the invention forms a hardening layer by using silicon dioxide and an organic matrix, and uses polycarbonate and ADc resin to make the base, so that while ensuring the impact resistance, the material is lighter and the cost is lower, which is conducive to the promotion of the product. The invention forms a wear-resistant layer by using silicon carbide, titanium dioxide and an organic matrix, so that the wear resistance of the product is ensured and the service life is extended. The invention forms a super-hydrating film by using macromolecular fluoride, so that it is difficult for water, oil and other stains to remain on the lens, so that the visual effect is ensured and the subsequent cleaning of the lens is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of resin lenses, in particular to impact-resistant resin lenses and a preparation process thereof. Background Art

[0002] A resin lens is a lens made of organic material. The interior is a polymer chain structure that is connected to form a three-dimensional network structure. The intermolecular structure is relatively loose, and there is space between the molecular chains for relative displacement. It is lighter than a glass lens, has better impact resistance and light transmittance, and is low in cost, and can meet special processing needs. However, the existing resin lenses mainly rely on two methods for impact resistance: coating and modified base materials. The coating is limited by the thickness of the coating itself, and the impact resistance of the modified raw materials is not ideal. The existing resin lenses are not very wear-resistant, which makes them easily damaged after long-term use. The existing resin lenses have average waterproof and anti-fouling properties, which makes it easy for stains to accumulate and difficult to clean later. Summary of the invention

[0003] The purpose of the present invention is to provide an impact-resistant resin lens and a preparation process thereof, so as to solve the problems of poor antistatic performance, poor wear resistance and weak surface adhesion mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an impact-resistant resin lens, comprising a waterproof layer, a hardened layer, an antistatic layer, an adhesive layer, a wear-resistant layer and a base layer, wherein the top of the base layer is provided with a wear-resistant layer, the top of the wear-resistant layer is provided with an antistatic layer, the top of the antistatic layer is provided with a hardened layer, and the top of the hardened layer is provided with a waterproof layer.

[0005] Preferably, an adhesive layer is disposed at the bottom end of the antistatic layer, and the adhesive layer is disposed at the top end of the wear-resistant layer.

[0006] The preparation process of the impact-resistant resin lens comprises the following steps: step 1, preparing raw materials; step 2, making a substrate; step 3, making a hardening and wear-resistant liquid; step 4, pre-treating the substrate; step 5, coating in steps;

[0007] In the above step 1, firstly, the required raw materials are prepared, including 19-23% polycarbonate, 27-35% ADc resin, 6-11% macromolecular fluoride, 5-8% silicon dioxide, 7-10% organic matrix, 3-6% transparent antistatic coating, 2-5% polyurethane, 8-14% silicon carbide and 4-6% titanium dioxide;

[0008] In the above step 2, polycarbonate and ADc resin are respectively put into a stirring device for stirring, and after they are completely mixed, a lens substrate is obtained;

[0009] In the above step 3, firstly, silicon dioxide is mixed with part of the organic matrix, and then fully stirred to obtain a hardening liquid, and then silicon carbide, titanium dioxide and the remaining organic matrix are mixed, and then fully stirred to obtain a wear-resistant liquid;

[0010] In the above step 4, the lens substrate obtained in step 1 is pre-treated, including a series of processes such as wiping, acid washing, alkali washing, water washing, and drying;

[0011] In the above step five, the substrate pretreated in step four is coated, firstly the substrate is immersed in a wear-resistant liquid for a coating, then immersed in a polyurethane solution for a second coating, then immersed in a transparent antistatic coating for a third coating, then immersed in a hardening liquid for a fourth coating, and finally the macromolecular fluoride is evaporated and deposited on the lens surface by vapor deposition, and after coating, the lens is placed in an oven for drying.

[0012] Preferably, in the step 1, the macromolecular fluoride may be replaced by organosilane, or a mixture of the macromolecular fluoride and organosilane.

[0013] Preferably, in step 1, the transparent antistatic coating includes but is not limited to PTU-056, RB-048 and ATT-065.

[0014] Preferably, the solvent of PTU-056 is PMA, and the solvent of RB-048 is alcohol.

[0015] Preferably, in step 2, the stirring rate of the stirring device is 50-120 r / min, the stirring time is 20-100 min, and the temperature inside the device is 80-90°C.

[0016] Preferably, in step three, the stirring rate of the hardening liquid is 30-60 r / min, the stirring time is 30-60 min, and the stirring rate of the wear-resistant liquid is 30-65 r / min, and the stirring time is 15-40 min.

[0017] Preferably, in step five, the immersion time for the first coating is 30-120 s, the immersion time for the second coating is 60-150 s, the immersion time for the third coating is 40-100 s, and the immersion time for the fourth coating is 120-180 s.

[0018] Preferably, in step five, the temperature in the oven is 100-120° C., and the drying time is 60-120 min.

[0019] Compared with the prior art, the present invention has the following beneficial effects: compared with the existing resin lenses, the present invention forms a hardening layer through silicon dioxide and an organic matrix, and uses polycarbonate and ADc resin to make a substrate, while ensuring impact resistance, the material is lighter and the cost is lower, which is conducive to the promotion of the product; the present invention forms a wear-resistant layer through silicon carbide, titanium dioxide and an organic matrix, thereby ensuring the wear resistance of the product and extending its service life; the present invention forms a super-hydrating film through macromolecular fluoride, which makes it difficult for water, oil and other stains to remain on the lens, ensuring the visual effect while facilitating the subsequent cleaning of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of the lens of the present invention;

[0021] Figure 2 is a process flow chart of the present invention;

[0022] In the figure: 1. Waterproof layer; 2. Hardening layer; 3. Antistatic layer; 4. Adhesive layer; 5. Wear-resistant layer; 6. Base layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 The present invention provides a technical solution: an impact-resistant resin lens, comprising a waterproof layer 1, a hard layer 2, an antistatic layer 3, an adhesive layer 4, a wear-resistant layer 5 and a base layer 6, the base layer 6 is provided with a wear-resistant layer 5 on the top, the wear-resistant layer 5 is provided with an antistatic layer 3 on the top, the antistatic layer 3 is provided with a hard layer 2 on the top, and the hard layer 2 is provided with a waterproof layer 1 on the top; the antistatic layer 3 is provided with an adhesive layer 4 at the bottom, and the adhesive layer 4 is provided at the top of the wear-resistant layer 5.

[0025] See also Figure 2 The preparation process of the impact-resistant resin lens comprises the following steps: step 1, preparing raw materials; step 2, making a substrate; step 3, making a hardening and wear-resistant liquid; step 4, pre-treating the substrate; step 5, coating in steps;

[0026] In the above step 1, first prepare the required raw materials, including 19-23% polycarbonate, 27-35% ADc resin, 6-11% macromolecular fluoride, 5-8% silicon dioxide, 7-10% organic matrix, 3-6% transparent antistatic coating, 2-5% polyurethane, 8-14% silicon carbide and 4-6% titanium dioxide, wherein the macromolecular fluoride can also be replaced by organic silane, or a mixture of macromolecular fluoride and organic silane, and the transparent antistatic coating includes but is not limited to PTU-056, RB-048 and ATT-065, the solvent of PTU-056 is PMA, and the solvent of RB-048 is alcohol;

[0027] In the above step 2, polycarbonate and ADc resin are respectively put into a stirring device for stirring, and after they are completely mixed, a lens substrate is obtained, the stirring speed of the stirring device is 50-120r / min, the stirring time is 20-100min, and the temperature inside the device is 80-90°C;

[0028] In the above step 3, silicon dioxide is first mixed with part of the organic matrix, and then fully stirred to obtain a hardening liquid, and then silicon carbide, titanium dioxide and the remaining organic matrix are mixed, and the wear-resistant liquid is obtained after fully stirring, the stirring rate of the hardening liquid is 30-60r / min, the stirring time is 30-60min, and the stirring rate of the wear-resistant liquid is 30-65r / min, and the stirring time is 15-40min;

[0029] In the above step 4, the lens substrate obtained in step 1 is pre-treated, including a series of processes such as wiping, acid washing, alkali washing, water washing, and drying;

[0030] In the above step five, the substrate pretreated in step four is coated, firstly, the substrate is immersed in a wear-resistant liquid for 30-120 seconds for a first coating, then immersed in a polyurethane solution for 60-150 seconds for a second coating, then immersed in a transparent antistatic coating for 40-100 seconds for a third coating, then immersed in a hardening liquid for 120-180 seconds for a fourth coating, and finally, a macromolecular fluoride is evaporated and deposited on the surface of the lens by vapor deposition. After coating, the lens is placed in an oven for drying, the temperature in the oven is 100-120°C, and the drying time is 60-120 minutes.

[0031] Based on the above, the advantages of the present invention are that both coating and substrate modification methods are used to ensure the stability of its impact resistance while reducing the production cost of the product; the present invention uses silicon carbide, titanium dioxide and an organic matrix to form a wear-resistant layer 6, which reduces the probability of lens wear and greatly improves its service life; the present invention uses macromolecular fluorides to form a super hydrophobic film, which reduces the contact between water and oil and the lens through hydrophobic substances and a tighter film surface, making it difficult for them to adhere to the lens surface, ensuring that the visual effect of the lens will not decrease for a long time.

[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A process for preparing an impact-resistant resin lens, the impact-resistant resin lens comprising a waterproof layer (1), a hardening layer (2), an antistatic layer (3), an adhesive layer (4), a wear-resistant layer (5) and a base layer (6), characterized in that: The top of the base layer (6) is provided with a wear-resistant layer (5), the top of the wear-resistant layer (5) is provided with an antistatic layer (3), the top of the antistatic layer (3) is provided with a hardening layer (2), the top of the hardening layer (2) is provided with a waterproof layer (1), the bottom of the antistatic layer (3) is provided with an adhesive layer (4), and the adhesive layer (4) is provided on the top of the wear-resistant layer (5); The preparation process includes the following steps: step 1, preparing raw materials; step 2, making a substrate; step 3, making a hardening and wear-resistant liquid; step 4, pre-treating the substrate; step 5, coating in steps; In the above step 1, firstly, the required raw materials are prepared, including 19-23% polycarbonate, 27-35% ADc resin, 6-11% macromolecular fluoride, 5-8% silicon dioxide, 7-10% organic matrix, 3-6% transparent antistatic coating, 2-5% polyurethane, 8-14% silicon carbide and 4-6% titanium dioxide; In the above step 2, polycarbonate and ADc resin are respectively put into a stirring device for stirring, and after they are completely mixed, a lens substrate is obtained; In the above step 3, firstly, silicon dioxide is mixed with part of the organic matrix, and then fully stirred to obtain a hardening liquid, and then silicon carbide, titanium dioxide and the remaining organic matrix are mixed, and then fully stirred to obtain a wear-resistant liquid; In the above step 4, the lens substrate obtained in step 1 is pre-treated, including wiping, acid washing, alkali washing, water washing, and drying processes; In the above step five, the substrate pretreated in step four is coated, firstly the substrate is immersed in a wear-resistant liquid for a first coating, then immersed in a polyurethane solution for a second coating, then immersed in a transparent antistatic coating for a third coating, then immersed in a hardening liquid for a fourth coating, and finally the macromolecular fluoride is evaporated and deposited on the lens surface by a vapor deposition method, and after the coating is completed, the lens is placed in an oven for drying.

2. The process for preparing the impact-resistant resin lens according to claim 1, characterized in that: In the step 1, the macromolecular fluoride is replaced by organosilane or by a mixture of macromolecular fluoride and organosilane.

3. The process for preparing the impact-resistant resin lens according to claim 1, characterized in that: In the step 1, the transparent antistatic coating includes PTU-056, RB-048 and ATT-065.

4. The process for preparing the impact-resistant resin lens according to claim 3, characterized in that: The solvent of the PTU-056 is PMA, and the solvent of the RB-048 is alcohol.

5. The process for preparing the impact-resistant resin lens according to claim 1, characterized in that: In the step 2, the stirring rate of the stirring device is 50-120 r / min, the stirring time is 20-100 min, and the temperature inside the device is 80-90°C.

6. The process for preparing the impact-resistant resin lens according to claim 1, characterized in that: In the step 3, the stirring rate of the hardening liquid is 30-60r / min, the stirring time is 30-60min, and the stirring rate of the wear-resistant liquid is 30-65r / min, and the stirring time is 15-40min.

7. The process for preparing the impact-resistant resin lens according to claim 1, characterized in that: In the step 5, the immersion time for the first coating is 30-120 s, the immersion time for the second coating is 60-150 s, the immersion time for the third coating is 40-100 s, and the immersion time for the fourth coating is 120-180 s.

8. The process for preparing the impact-resistant resin lens according to claim 1, characterized in that: In the step 5, the temperature in the oven is 100-120° C., and the drying time is 60-120 min.

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