CN112409626B - Polyurethane lens with antifogging function and production method thereof - Google Patents

Polyurethane lens with antifogging function and production method thereof Download PDF

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Publication number
CN112409626B
CN112409626B CN202011300383.6A CN202011300383A CN112409626B CN 112409626 B CN112409626 B CN 112409626B CN 202011300383 A CN202011300383 A CN 202011300383A CN 112409626 B CN112409626 B CN 112409626B
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lens
percent
antifogging
coating
fog
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CN202011300383.6A
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CN112409626A (en
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汪山献松
刘传冬
杨燕霞
程龙
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Shanghai Weixing Optical Co ltd
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Shanghai Weixing Optical Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/054—Forming anti-misting or drip-proofing coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/002—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers modified by after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

Abstract

The invention relates to a polyurethane lens with an antifogging function and a production method thereof, and is characterized in that the polyurethane lens comprises the following raw materials in percentage by mass: 10 to 20 percent of methylated amino resin; the methyl methacrylate accounts for 5 to 10 percent; the n-butyl acrylate accounts for 5 to 10 percent; 5-10% of n-butyl methacrylate, 15-40% of isooctyl acrylate and 15-30% of silicon dioxide nano sol; 1 to 5 percent of N, N-dimethylethanolamine; 1-2% of dioctyl sodium sulfosuccinate; 0.1 to 0.5 percent of defoaming agent and 10 to 40 percent of propylene glycol methyl ether. The problem that the lens can only select two with reflection effect and antifog effect is solved to this application for the lens possesses antireflection rete and antifog rete simultaneously, has realized lens high definition and antifog function.

Description

Polyurethane lens with antifogging function and production method thereof
Technical Field
The invention relates to the technical field of lenses, in particular to a polyurethane lens with an anti-fog function and a production method thereof.
Background
With the increasing awareness of respiratory tract diseases in recent years, more and more people begin to wear masks, and thus, breathing high-humidity gas can easily atomize lenses in environments with large temperature difference ranges (transition from low-temperature environments to high-temperature environments (e.g., people enter the room from the outside in winter or leave the room in buildings with air conditioners having high-temperature environments), or glasses are worn in high-humidity environments, such as eating noodles or other high-humidity environments.
From recent literature, it was found that chinese patent application No. CN201310174406.7, antifog-coating, the invention relates to an optical member having an antifog-coating, which is obtainable by covalent bonding of a silane derivative of formula (1) onto the surface of the optical member: roXmSiAn (1) where m =1-3, n =1-2 and o =0-1, with the proviso that m + n + o =4. The invention provides an anti-fog coating, a preparation method of the anti-fog coating and anti-fog glass, and provides CN201310676084.6 anti-fog coating, a preparation method of the anti-fog coating and the anti-fog glass. The anti-fog coating comprises at least one cross-linking layer and at least one anti-fog layer, wherein the cross-linking layer and the anti-fog layer are alternately arranged to form the anti-fog coating, one side of the anti-fog coating is the cross-linking layer plated on a substrate, and the other side of the anti-fog coating is the anti-fog layer. The antifogging coating has the advantages of lasting antifogging performance, good wear resistance, heat resistance and water solubility resistance. The preparation method of the antifogging coating has the advantages of scientific and reasonable steps, simple and feasible process, low cost and wide application range.
Chinese patent application No. CN201310305925.2 antifogging coating, antifogging base material and manufacturing method of antifogging base material. The invention discloses an antifogging coating, an antifogging base material and a manufacturing method of the antifogging base material, wherein the antifogging coating comprises the following main components: based on the total weight of the anti-fog coating, the anti-fog coating comprises the following components: 15% to 25% of a water-based acrylic polyurethane oligomer; 15% to 25% of a water-based acrylic monomer; 2% to 5% of a water-based antifogging agent; 0.2 to 0.5% of a water-based wetting agent; 0.5 to 2.5% of a water-based defoamer; 0.1 to 0.5 percent of water-based leveling agent; 0.2 to 2% of a water-based thixotropic agent; 1 to 3% of a silane coupling agent; 5% to 10% of a water-based adhesion promoter; 15% to 25% of a nanosol; 1% to 2% of a water-based photoinitiator; and a balance content of water. In addition, the invention also provides an antifogging base material using the antifogging coating and a manufacturing method thereof.
The anti-fog technology, in particular to the anti-fog coating technology applied to the lens processing, is processed into the common anti-fog lens after the anti-fog coating is coated on the lens. The anti-fog lens solves a lot of troubles of myopes, and enables the wearer to see objects more clearly and more comfortably in a fog environment; the lens does not need to be taken off at any time for wiping, and is more convenient. However, the antifogging lens is formed by directly coating an antifogging material on a base material, has an antifogging effect, but cannot be coated, if the antifogging material is coated and then coated, the antifogging effect of the lens disappears, and if the vacuum coating is not carried out, the antireflection effect is not large. In order to solve the technical problem, the invention provides an antifogging coating material, and the antifogging coating material is coated on the outermost layer of the lens, so that the antireflection effect of the lens can be realized, and the fogging problem of the lens can be solved.
Specifically, the antifogging coating material is prepared by carrying out methylation on amino resin by 10-20%; the methyl methacrylate accounts for 5 to 10 percent; the n-butyl acrylate accounts for 5% -10%; 5% -10% of n-butyl methacrylate, 15% -40% of iso-Xin Zhiwei and 15% -30% of silicon dioxide nano sol; 1 to 5 percent of N, N-dimethylethanolamine; 1-2% of dioctyl sodium sulfosuccinate; 0.1 to 0.5 percent of defoaming agent and 10 to 40 percent of propylene glycol methyl ether. After a certain amount of propylene glycol methyl ether is added into a closed container, sequentially adding methylated amino resin, methyl methacrylate, N-butyl acrylate, N-butyl methacrylate and isooctyl acrylate, controlling the temperature at 50 ℃, stirring at 5000 r/min, reacting for 2h, dropwise adding N, N-dimethylethanolamine and dioctyl sodium sulfosuccinate, heating to 60 ℃, reacting for 4h, cooling to 20 ℃, dropwise adding a defoaming agent, reacting for 1h, heating the obtained solution to 120 ℃, continuously stirring, and reacting for 1h to obtain the antifogging coating material. Carrying out vacuum coating on the cleaned polyurethane lens, wherein the vacuum degree of the coating is 3.0 to 10 -3 Pa and boiling power of 4kw, and after film coating for a certain time, the evaporation rate is 0.3nm/S, and the thickness of the antifogging coating can reach 5-20nm. And obtaining the polyurethane lens with the antifogging function after the film coating is finished.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a polyurethane lens with an anti-fog function and a production method thereof.
The purpose of the invention is realized by the following technical scheme:
a polyurethane lens with an antifogging function comprises the following raw materials in percentage by mass:
10 to 20 percent of methylated amino resin; the methyl methacrylate accounts for 5 to 10 percent; the n-butyl acrylate accounts for 5 to 10 percent; 5-10% of n-butyl methacrylate, 15-40% of isooctyl acrylate and 15-30% of silicon dioxide nano sol; 1 to 5 percent of N, N-dimethylethanolamine; 1-2% of dioctyl sodium sulfosuccinate; 0.1 to 0.5 percent of defoaming agent and 10 to 40 percent of propylene glycol methyl ether.
A production method of a polyurethane lens with an anti-fog function comprises the following specific steps:
after propylene glycol methyl ether is added into a closed container, sequentially adding methylated amino resin, methyl methacrylate, N-butyl acrylate, N-butyl methacrylate and isooctyl acrylate, controlling the temperature at 50 ℃, stirring at 5000 rpm, reacting for 2h, dropwise adding N, N-dimethylethanolamine and dioctyl sodium sulfosuccinate, heating to 60 ℃, reacting for 4h, cooling to 20 ℃, dropwise adding a defoaming agent, reacting for 1h, then adding the obtained solution to 120 ℃, continuously stirring, and reacting for 1h to obtain an antifogging coating material; vacuum coating the cleaned fog coating material with a coating vacuum degree of 3.0 x 10 -3 Pa, boiling power of 4kw, film coating time of 100-300 seconds, evaporation rate of 0.3nm/S and thickness of 5-20nm.
The raw material of the lens is polyurethane, and the refractive index and the Abbe number of the lens meet the following conditions: the refractive index is 1.67 plus the Abbe number is more than or equal to 30, or the refractive index is 1.60 plus the Abbe number is more than or equal to 40, or the refractive index is 1.53 plus the Abbe number is more than or equal to 58.
The contact angle of water drops of the lens is less than or equal to 10 degrees.
The haze of the lens is increased by less than or equal to 3 percent after the lens is wiped by 0000# steel wool for 1000 times.
Compared with the prior art, the invention has the following positive effects:
compared with the prior art, the invention prepares the special anti-fog coating material, and the anti-fog coating material is evaporated on the surface of the lens under the conditions of certain vacuum degree and boiling and steaming, thereby solving the problem that the reflection effect and the anti-fog effect of the lens can only be selected alternatively, leading the lens to have an anti-reflection film layer and an anti-fog film layer simultaneously, and realizing the high definition and anti-fog functions of the lens.
Detailed Description
The following provides a concrete embodiment of a polyurethane lens having an antifogging function and a production method thereof according to the present invention.
Example 1
Firstly, preparing antifogging coating material, adding 200 g of propylene glycol methyl ether into a closed container, and then100 g of methylated amino resin, 60 g of methyl methacrylate, 60 g of N-butyl acrylate, 60 g of N-butyl methacrylate and 60 g of isooctyl acrylate are added, the temperature is controlled at 50 ℃, the stirring speed is 5000 r/min, the reaction is carried out for 2h, 20 g of N, N-dimethylethanolamine and 10 g of dioctyl sodium sulfosuccinate are added dropwise, the temperature is raised to 60 ℃, the reaction is carried out for 4h, the temperature is reduced to 20 ℃, 1 g of antifoaming agent is added dropwise for reaction for 1h, then the obtained solution is heated to 120 ℃ and is stirred continuously, and the antifogging coating material is obtained after the reaction is carried out for 1 h. The raw material of the lens is polyurethane, and the refractive index is 1.67 plus the Abbe number is more than or equal to 30. Carrying out vacuum coating on the cleaned polyurethane lens, wherein the vacuum degree of the coating is 3.0 x 10 -3 Pa, boiling and steaming power of 4kw, film coating time of 150 seconds, evaporation rate of 0.3nm/S and thickness of 10nm. The contact angle of the water drop of the lens is equal to 7 deg.. The haze increase of the lens after 1000 wipes of 0000# steel wool was equal to 1%. The visible light transmittance of the lens reaches 95 percent, and the requirement of the state on the standard GB10810.3 of the film-coated lens is met.
Example 2
Firstly preparing an antifogging coating material, adding 200 g of propylene glycol methyl ether into a closed container, then sequentially adding 100 g of methylated amino resin, 60 g of methyl methacrylate, 60 g of N-butyl acrylate, 60 g of N-butyl methacrylate and 60 g of isooctyl acrylate, controlling the temperature at 50 ℃, controlling the stirring speed at 5000 r/min, reacting for 2h, dropwise adding 20 g of N, N-dimethylethanolamine and 10 g of dioctyl sodium sulfosuccinate, raising the temperature to 60 ℃, reacting for 4h, cooling to 20 ℃, dropwise adding 1 g of a defoaming agent, reacting for 1h, then heating the obtained solution to 120 ℃, continuously stirring, and reacting for 1h to obtain the antifogging coating material. The raw material of the lens is polyurethane, and the refractive index is 1.67 plus the Abbe number is more than or equal to 30. Carrying out vacuum coating on the cleaned polyurethane lens, wherein the coating vacuum degree is 3.0 x 10 -3 Pa, boiling power of 4kw, film coating time of 300 seconds, evaporation rate of 0.3nm/S and thickness of 15nm. The contact angle of the water drop of the lens is equal to 6 deg.. The haze increase of the lenses after 1000 wipes of 0000# steel wool was equal to 2%. The visible light transmittance of the lens reaches 95 percent, and the requirement of the state on the standard GB10810.3 of the film-coated lens is met.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the concept of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.

Claims (3)

1. A polyurethane lens with an antifogging function is characterized by comprising the following raw materials in percentage by mass:
10 to 20 percent of methylated amino resin; the methyl methacrylate accounts for 5 to 10 percent; the n-butyl acrylate accounts for 5 to 10 percent; 5-10% of n-butyl methacrylate, 15-40% of isooctyl acrylate and 15-30% of silicon dioxide nano sol; 1 to 5 percent of N, N-dimethylethanolamine; 1-2% of dioctyl sodium sulfosuccinate; 0.1 to 0.5 percent of defoaming agent and 10 to 40 percent of propylene glycol methyl ether;
after the polyurethane lens with the anti-fog function is wiped for 1000 times by 0000# steel wool, the haze increase value is less than or equal to 3%;
the production method of the polyurethane lens with the anti-fog function comprises the following specific steps:
after propylene glycol methyl ether is added into a closed container, sequentially adding methylated amino resin, methyl methacrylate, N-butyl acrylate, N-butyl methacrylate and isooctyl acrylate, controlling the temperature at 50 ℃, stirring at 5000 rpm, reacting for 2h, dropwise adding N, N-dimethylethanolamine and dioctyl sodium sulfosuccinate, heating to 60 ℃, reacting for 4h, cooling to 20 ℃, dropwise adding a defoaming agent, reacting for 1h, then adding the obtained solution to 120 ℃, continuously stirring, and reacting for 1h to obtain an antifogging coating material; vacuum coating the cleaned fog coating material at a coating vacuum degree of 3.0 to 10 -3 Pa, boiling and steaming power of 4kw, film coating time of 100-300 seconds, evaporation rate of 0.3nm/S after film coating, and thickness of the antifogging coating layer of 5-20 nm; and obtaining the polyurethane lens with the antifogging function after the film coating is finished.
2. The polyurethane lens with an antifogging function according to claim 1, wherein the refractive index and abbe number of the lens satisfy the condition: the refractive index is 1.67 plus the Abbe number is more than or equal to 30, or the refractive index is 1.60 plus the Abbe number is more than or equal to 40, or the refractive index is 1.53 plus the Abbe number is more than or equal to 58.
3. The polyurethane lens having an antifogging function according to claim 1, wherein a contact angle of a water drop of the lens is 10 ° or less.
CN202011300383.6A 2020-11-18 2020-11-18 Polyurethane lens with antifogging function and production method thereof Active CN112409626B (en)

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CN112409626B true CN112409626B (en) 2023-02-07

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202008536U (en) * 2011-03-23 2011-10-12 云南汇恒光电技术有限公司 Hydrophobic antifog lens
KR101340513B1 (en) * 2013-08-05 2013-12-11 김진태 Antifog lens and manufacturing process thereof
CN104558661A (en) * 2014-12-18 2015-04-29 盐城工学院 Antifogging resin optical lens and preparation method thereof
CN106476379B (en) * 2016-09-21 2018-08-17 东莞市联洲知识产权运营管理有限公司 A kind of heat-insulated antifog film of vehicle glass
US10520647B2 (en) * 2017-08-16 2019-12-31 Honeywell International Inc. Anti-fog and anti-reflective dual-functional coating for optical articles
CN109370520A (en) * 2018-12-06 2019-02-22 天津中亚慧通科技有限公司 A kind of automobile glass anti-fog film
CN113372800B (en) * 2021-06-21 2022-06-28 山西新华防化装备研究院有限公司 Long-acting antifogging hydrophilic coating liquid and preparation method thereof

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