阅读说明：本技术 一种提高防污有机玻璃耐光照性能的加工方法 (Processing method for improving anti-fouling organic glass illumination resistance ) 是由 常彩侠 于 2019-10-24 设计创作，主要内容包括：本发明属于玻璃加工技术领域,具体涉及一种提高防污有机玻璃耐光照性能的加工方法,包括用预处理液对有机玻璃基材进行预处理,然后制备处理剂,在一定温湿度条件下将预处理有机玻璃基材浸入处理剂中进行处理,然后在恒温箱中热处理即可。本发明相比现有技术具有以下优点：氰基丙烯酸酯与氯仿混合后对其表面形成均匀、轻微的腐蚀,自然形成不规则细孔,处理剂在有机玻璃表面形成表面相对平整且粗糙度为3.2-3.6μm的膜层,其表面接触角为130°左右,且具有较好的透光性,不影响有机玻璃本身透光度,耐候性强、具有较好的导热性,在光照处理后,有机玻璃表面的膜层仍具有较好的透光度和防水防污效果。(The invention belongs to the technical field of glass processing, and particularly relates to a processing method for improving the light-resistant performance of antifouling organic glass. Compared with the prior art, the invention has the following advantages: after the cyanoacrylate and the chloroform are mixed, the surface of the organic glass is uniformly and slightly corroded to naturally form irregular pores, the surface of the organic glass is relatively flat and smooth by the treatment agent, the roughness of the film is 3.2-3.6 mu m, the surface contact angle of the film is about 130 degrees, the film has good light transmission, the transmittance of the organic glass is not influenced, the weather resistance is high, the heat conductivity is good, and after the organic glass is subjected to light treatment, the film on the surface of the organic glass still has good transmittance and a waterproof and antifouling effect.)

1. A processing method for improving the light-resistant performance of antifouling organic glass is characterized by comprising the following steps:

(1) cleaning and drying an organic glass substrate, mixing cyanoacrylate and chloroform in a weight ratio of 1:6-8 to obtain a pretreatment solution, coating the pretreatment solution on the surface of the cleaned organic glass substrate, and then treating for 20-30 minutes under the condition of hot air at the temperature of 60-70 ℃ to obtain a pretreated organic glass substrate;

(2) stirring 12-18 parts of artificial colorless spinel powder, 30-40 parts of nano zirconium dioxide sol, 10-16 parts of polytetrafluoroethylene, 1-2 parts of composite active agent and 25-35 parts of diluent for 2 hours by using a magnetic stirrer at the rotating speed of 600 revolutions per minute, keeping the temperature at 65-75 ℃ in the stirring process, sieving by using a 200-mesh sieve after the stirring is finished to obtain a treating agent, and standing for later use at the temperature of 5-10 ℃;

(3) immersing the pretreated organic glass substrate into the treating agent under the conditions of the humidity of 45-55% and the temperature of 22-26 ℃, standing for 20-30 minutes, then stably and vertically lifting at the speed of 10-20 cm/minute, naturally drying for 10 minutes, and then transferring into a thermostat with the temperature of 105-115 ℃ for heat treatment for 20 minutes.

2. The processing method for improving the anti-fouling organic glass illumination resistance according to claim 1, characterized in that the coating amount of the pre-treatment liquid in step (1) is 1-2 g/cm.

3. The processing method for improving the illumination resistance of the antifouling organic glass as claimed in claim 1, wherein the hot air flow rate in the hot air condition is 8000-.

4. The processing method for improving the light-resistant performance of antifouling organic glass according to claim 1, wherein the particle size of the artificial colorless spinel powder is 400 meshes, and the artificial colorless spinel powder is prepared by using magnesium nitrate and aluminum nitrate as raw materials through a combustion method.

5. The processing method for improving the light-resistant performance of antifouling organic glass according to claim 1, wherein the nano zirconium dioxide sol has a pH of 3-4 and a particle size of not more than 10 nm.

6. The method for processing the organic glass with improved anti-fouling performance against light as claimed in claim 1, wherein the composite activator is obtained by mixing FCS-005 non-ionic fluorocarbon surfactant and zinc stearate in a weight ratio of 6-8: 1.

7. The method of claim 1, wherein the diluent is ethanol.

8. The processing method for improving the light-resistant performance of the antifouling organic glass as claimed in claim 1, wherein the heat treatment process of the incubator in the step (3) is heat treatment under vacuum condition, and the vacuum degree is not less than minus 0.9 MPa.

Technical Field

The invention belongs to the technical field of glass processing, and particularly relates to a processing method for improving the light-resistant performance of antifouling organic glass.

Background

The organic glass is mainly made of polymethyl methacrylate, is developed and matured thermoplastic plastic, has better transparency, chemical stability, mechanical property and weather resistance, is suitable for transparent structural members with requirements on strength, generally has certain requirements on the surface stain resistance in actual use, but as the main raw material of the organic glass is polymethyl methacrylate, organic matters are easily adsorbed, and the transmittance of the organic glass can be influenced, in order to solve the problems, in the prior art, for example, application No. 2016108764686 discloses an index method of an optical glass super-hydrophobic and oleophobic stain-resistant coating, a base material is pretreated in a specific mode, then a coating is formed by adopting modified nano particles and fluorocarbon resin with specific functional groups, and then curing treatment is carried out under specific process conditions, so that the formed coating not only keeps the original transparency and enhances the wear resistance, the surface of the organic glass has hydrophobic and oleophobic characteristics, the anti-pollution performance of the organic glass is enhanced, the service cycle of the organic glass in a water environment is prolonged, the main raw materials of the organic glass are modified silicon dioxide, carboxyl-containing fluorocarbon resin and ethylbenzene, wherein the modified silicon dioxide has good acid and alkali resistance and stable chemical performance, more CF2 groups are contained in the fluorocarbon resin, the polymer molecules of the organic glass are easy to rearrange when pollutants contact the surface of the organic glass, and the fluorocarbon resin is a rigid polymer and has poor permeability and adhesion; the existing ultraviolet-proof film is high in thickness, and the existing commonly-used ultraviolet-proof film comprises a dyeing film, a vacuum thermal evaporation film and a metal magnetron sputtering film, and although the light-proof performance of the existing commonly-used ultraviolet-proof film can be improved, the light transmittance of the organic glass can be affected, so that the further research is needed for improving the light-proof performance of the antifouling organic glass on the basis of ensuring the light transmittance.

Disclosure of Invention

The invention aims to provide a processing method for improving the anti-fouling organic glass illumination resistance, aiming at the problem that the coating of the existing organic glass can be separated under the illumination condition.

The invention is realized by the following technical scheme: a processing method for improving the light-resistant performance of antifouling organic glass comprises the following steps:

(1) cleaning and drying an organic glass substrate, mixing cyanoacrylate and chloroform in a weight ratio of 1:6-8 to obtain a pretreatment solution, coating the pretreatment solution on the surface of the cleaned organic glass substrate, and then treating for 20-30 minutes under the condition of hot air at the temperature of 60-70 ℃ to obtain a pretreated organic glass substrate;

(2) stirring 12-18 parts of artificial colorless spinel powder, 30-40 parts of nano zirconium dioxide sol, 10-16 parts of polytetrafluoroethylene, 1-2 parts of composite active agent and 25-35 parts of diluent for 2 hours by using a magnetic stirrer at the rotating speed of 600 revolutions per minute, keeping the temperature at 65-75 ℃ in the stirring process, sieving by using a 200-mesh sieve after the stirring is finished to obtain a treating agent, and standing for later use at the temperature of 5-10 ℃;

(3) immersing the pretreated organic glass substrate into the treating agent under the conditions of the humidity of 45-55% and the temperature of 22-26 ℃, standing for 20-30 minutes, then stably and vertically lifting at the speed of 10-20 cm/minute, naturally drying for 10 minutes, and then transferring into a thermostat with the temperature of 105-115 ℃ for heat treatment for 20 minutes.

As a further improvement on the above, the applied amount of the pretreatment liquid in said step (1) is 1-2 g/cm.

As a further improvement of the scheme, the hot wind flow rate in the hot wind condition is 8000-9000m and/h.

As a further improvement of the scheme, the artificial colorless spinel powder has the grain diameter of 400 meshes and is prepared by using magnesium nitrate and aluminum nitrate as raw materials through a combustion method.

As a further improvement to the scheme, the pH value of the nano zirconium dioxide sol is 3-4, and the particle size is not more than 10 nm.

As a further improvement to the scheme, the composite active agent is obtained by mixing FCS-005 nonionic fluorocarbon surfactant and zinc stearate in a weight ratio of 6-8: 1.

As a further improvement to the above, the diluent is ethanol.

As a further improvement to the scheme, the heat treatment process of the incubator in the step (3) is heat treatment under vacuum condition, and the vacuum degree is not less than minus 0.9 MPa.

The artificial colorless spinel powder has a high melting point, magnesium nitrate and aluminum nitrate are matched according to a weight ratio of 1:2 to obtain a mixture, water which is 2 times of the weight of the mixture is added into the mixture and is uniformly stirred to obtain a mixed solution, the mixed solution is stirred to be dissolved at 60 ℃, then urea which is equal to the mixture is added, the mixed solution is stirred to be pasty by heat preservation, then the mixed solution is transferred into a combustion furnace to be heated for ten minutes, and after the heating, the mixed solution is cooled to room temperature and ground to obtain powder; the obtained powder has good chemical stability.

The nano zirconium dioxide sol is sol aqueous liquid, and has high transparency and good stability; has fire-resistant performance and cohesiveness.

Compared with the prior art, the invention has the following advantages: the method is characterized in that cyanoacrylate and chloroform are mixed and coated on the surface of an organic glass substrate, the mixture acts on the surface of the organic glass substrate under the condition of hot air to form uniform and slight corrosion on the surface of the organic glass substrate and naturally form irregular pores, then artificial colorless spinel powder, nano zirconium dioxide sol and polytetrafluoroethylene are effectively combined to form a film layer with a relatively flat surface and 3.2-3.6 microns of roughness on the surface of the organic glass, the surface contact angle of the film layer is about 130 degrees, the film layer has good light transmission, the transmittance of the organic glass is not influenced, the weather resistance is strong, the heat conductivity is good, and the film layer on the surface of the organic glass still has good transmittance and waterproof and antifouling effects after the organic glass is subjected to illumination treatment.

Detailed Description

The polytetrafluoroethylene is a particle material with the particle size of 5 mu m, the FCS-005 nonionic fluorocarbon surfactant is provided by Wuhan La Na pharmaceutical chemical company, the zinc stearate is provided by Shijiazhui Henghua engineering and technology company, and the fineness of the zinc stearate is 400 meshes; the model of the nano zirconium dioxide sol is VK-RJ 80; the organic glass substrate is polymethyl methacrylate.