CN111349368A - High-adhesion light diffusion coating for LED lamp tube and preparation method - Google Patents
High-adhesion light diffusion coating for LED lamp tube and preparation method Download PDFInfo
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- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention relates to the field of optics and discloses a high-adhesion light diffusion coating for an LED lamp tube and a preparation method thereof. The invention has the following advantages and effects: the light diffusion film coating material has good light permeability and light scattering property, increases the toughness of the coating, can adhere glass fragments when a glass tube is broken so as not to fall off, can still pass the safety performance test of a test finger for a broken lamp tube, and has better light transmittance due to more reasonable formula design. The unique physical property and optical property of the light diffusion coating make the light diffusion coating have wide application prospect in the photoelectric field.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a high-adhesion light diffusion coating for an LED lamp tube and a preparation method thereof.
Background
Due to the characteristics of high luminous efficiency, low efficiency, long service life, environmental protection and the like, the LED lamp tube gradually replaces some traditional light source products in the field of indoor lighting. The light diffusion coating coated on the inner wall of the traditional LED lamp generally only has a light diffusion effect, but after the glass tube is broken, the diffusion coating can fall off along with fragments, and LED lamp beads without the protection of the shell are exposed, so that certain potential safety hazards are formed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to design and provide the high-adhesion light diffusion coating for the LED lamp tube and the preparation method thereof, so that the problems of glare and potential safety hazards after the LED lamp tube is broken are solved; the light source is uniform and soft, and has good light transmission and light scattering properties and long service life.
In order to achieve the purpose, the invention provides the following technical scheme: the photodiffusion coating for the LED lamp tube with high cohesiveness is characterized by being prepared from the following components in percentage by weight: 25-30% of water-based polyacrylic resin, 8-12% of water-based polyurethane, 6-10% of organic silica gel, 15-20% of nano calcium carbonate, 5-10% of nano silicon dioxide, 5-8% of zinc oxide, 1-2% of silane coupling agent, 0.2-0.6% of dispersing agent, 0.2-0.6% of defoaming agent, 0.2-0.6% of flatting agent and 20-30% of deionized water.
The invention is further configured to: the average particle diameter of the nano calcium carbonate and nano silicon dioxide particles is 5-20 μm, preferably 8-15 μm, and more preferably 8-10 μm.
The invention is further configured to: the dispersant is stearic acid amide dispersant.
The invention is further configured to: the defoaming agent is a conventional water-based defoaming agent.
A preparation method of a high-cohesiveness photodiffusion coating for an LED lamp tube is characterized by comprising the following steps:
1) weighing the following components in percentage by weight: 25-30% of water-based polyacrylic resin, 8-12% of water-based polyurethane, 15-20% of nano calcium carbonate, 5-10% of nano silicon dioxide, 5-8% of zinc oxide, 6-10% of organic silica gel, 1-2% of silane coupling agent, 0.2-0.6% of dispersing agent, 0.2-0.6% of defoaming agent, 0.2-0.6% of flatting agent and 20-30% of deionized water;
2) adding deionized water into the water-based polyacrylic resin during stirring, controlling the temperature at 20-30 ℃, controlling the speed of a stirrer at 200-300 r/min, and then adding nano calcium carbonate and zinc oxide;
3) then adding a defoaming agent, a flatting agent, a silane coupling agent, a dispersing agent, nano silicon dioxide and organic silica gel in sequence;
4) adding water-based polyurethane, controlling the temperature of the added water-based polyurethane solution at 50-60 ℃, then increasing the rotation speed of the stirrer to 2000-2500 r/min for 25-30 minutes, and uniformly mixing.
5) And pouring the uniformly mixed coating into an ultrasonic processor, and performing ultrasonic defoaming treatment, wherein the defoaming rate is not more than 10-12 kg/min, and the bubbles with the diameter of 0.2mm are not more than 0.01%.
6) And (3) spraying the treated coating on a special spraying machine from top to bottom, and then drying at the drying temperature of 110-120 ℃.
7) And (4) the dried lamp tube enters an ultraviolet drying oven to be subjected to coating curing treatment. The ultraviolet wavelength was 365nm and the drying time was 10 minutes.
In conclusion, the invention has the following beneficial effects:
the light diffusion film coating material has good light permeability and light scattering property, increases the toughness of the coating, can adhere glass fragments when a glass tube is broken so as not to fall off, can still pass the safety performance test of a test finger for a broken lamp tube, and has better light transmittance due to more reasonable formula design. The unique physical property and optical property of the light diffusion coating make the light diffusion coating have wide application prospect in the photoelectric field.
Detailed Description
Example 1:
1) weighing the following components in percentage by weight: 500g of water-based polyacrylic resin, 16g of water-based polyurethane, 30g of nano calcium carbonate, 10g of nano silicon dioxide, 10g of zinc oxide, 2g of silane coupling agent, 0.4g of dispersing agent, 0.4g of defoaming agent, 0.4g of flatting agent and 200g of deionized water for later use; the dispersant is stearic acid amide dispersant; the defoamer is a conventional aqueous defoamer. The average particle diameter of the nano calcium carbonate and nano silicon dioxide particles is 5 μm.
2) Sequentially adding deionized water into the water-based polyacrylic resin in a stirring process, controlling the temperature at 20 ℃, controlling the speed of a stirrer at 200r/min, and then adding nano calcium carbonate;
3) then adding a defoaming agent, a flatting agent, a silane coupling agent, a dispersing agent, nano silicon dioxide and organic silica gel in sequence;
4) adding water-based polyurethane, controlling the temperature of the added water-based polyurethane solution at 50 ℃, then increasing the rotating speed of the stirrer to 2000r/min, mixing for 25 minutes, and uniformly mixing.
5) And pouring the uniformly mixed coating into an ultrasonic processor, and performing ultrasonic defoaming treatment, wherein the defoaming rate is 10kg/min, and the bubbles with the diameter of 0.2mm are not more than 0.01%.
6) And (3) spraying the treated coating on a special spraying machine from top to bottom, and then drying at the drying temperature of 110 ℃.
7) And (4) the dried lamp tube enters an ultraviolet drying oven to be subjected to coating curing treatment. The ultraviolet wavelength was 365nm and the drying time was 10 minutes.
Example 2:
1) weighing the following components in percentage by weight: 600g of water-based polyacrylic resin, 30g of water-based polyurethane, 35g of nano calcium carbonate, 16g of nano silicon dioxide, 15g of zinc oxide, 5g of silane coupling agent, 0.6g of dispersing agent, 0.8g of defoaming agent, 0.8g of flatting agent and 500g of deionized water for later use; the dispersant is stearic acid amide dispersant; the defoamer is a conventional aqueous defoamer. The average particle diameter of the nano calcium carbonate and nano silicon dioxide particles is 7 μm.
2) Sequentially adding deionized water into the water-based polyacrylic resin in a stirring process, controlling the temperature at 30 ℃, controlling the speed of a stirrer at 300r/min, and then adding nano calcium carbonate;
3) then adding a defoaming agent, a flatting agent, a silane coupling agent, a dispersing agent, nano silicon dioxide and organic silica gel in sequence;
4) adding water-based polyurethane, controlling the temperature of the added water-based polyurethane solution at 60 ℃, then increasing the rotating speed of the stirrer to 2500r/min, mixing for 30 minutes, and uniformly mixing.
5) And pouring the uniformly mixed coating into an ultrasonic processor, and performing ultrasonic defoaming treatment, wherein the defoaming rate is 12kg/min, and the bubbles with the diameter of 0.2mm are not more than 0.01%.
6) And (3) spraying the treated coating on a special spraying machine from top to bottom, and then drying at 120 ℃.
7) And (4) the dried lamp tube enters an ultraviolet drying oven to be subjected to coating curing treatment. The ultraviolet wavelength was 365nm and the drying time was 10 minutes.
Example 3:
1) weighing the following components in percentage by weight: 600g of water-based polyacrylic resin, 24g of water-based polyurethane, 40g of nano calcium carbonate, 20g of nano silicon dioxide, 16g of zinc oxide, 16g of silane coupling agent, 1.2g of dispersing agent, 1.2g of defoaming agent, 1.2g of flatting agent and 600g of deionized water for later use; the dispersant is stearic acid amide dispersant; the defoamer is a conventional aqueous defoamer. The average particle diameter of the nano calcium carbonate and nano silicon dioxide particles is 15 μm.
2) Sequentially adding deionized water into the water-based polyacrylic resin in a stirring process, controlling the temperature at 30 ℃, controlling the speed of a stirrer at 300r/min, and then adding nano calcium carbonate;
3) then adding a defoaming agent, a flatting agent, a silane coupling agent, a dispersing agent, nano silicon dioxide and organic silica gel in sequence;
4) adding aqueous polyurethane, controlling the temperature of the added aqueous polyurethane solution at 55 ℃, then increasing the rotation speed of the stirrer to 2300r/min, mixing for 27 minutes, and uniformly mixing.
5) And pouring the uniformly mixed coating into an ultrasonic processor, and performing ultrasonic defoaming treatment, wherein the defoaming rate is 11kg/min, and the bubbles with the diameter of 0.2mm are not more than 0.01%.
6) And (3) spraying the treated coating on a special spraying machine from top to bottom, and then drying at the drying temperature of 110 ℃.
7) And (4) the dried lamp tube enters an ultraviolet drying oven to be subjected to coating curing treatment. The ultraviolet wavelength was 365nm and the drying time was 10 minutes.
Example 4:
1) weighing the following components in percentage by weight: 550g of water-based polyacrylic resin, 16g of water-based polyurethane, 34g of nano calcium carbonate, 16g of nano silicon dioxide, 14g of zinc oxide, 12g of silane coupling agent, 1g of dispersing agent, 1g of defoaming agent, 0.8g of flatting agent and 550g of deionized water for later use; the dispersant is stearic acid amide dispersant; the defoaming agent is a conventional aqueous defoaming agent. The average particle diameter of the nano calcium carbonate and nano silicon dioxide particles is 8 μm.
2) Sequentially adding deionized water into the water-based polyacrylic resin in a stirring process, controlling the temperature at 26 ℃, controlling the speed of a stirrer at 280r/min, and then adding nano calcium carbonate;
3) then adding a defoaming agent, a flatting agent, a silane coupling agent, a dispersing agent, nano silicon dioxide and organic silica gel in sequence;
4) adding aqueous polyurethane, controlling the temperature of the added aqueous polyurethane solution at 53 ℃, then increasing the rotating speed of the stirrer to 2400r/min, mixing for 27 minutes, and uniformly mixing.
5) And pouring the uniformly mixed coating into an ultrasonic processor, and performing ultrasonic defoaming treatment, wherein the defoaming rate is not more than 12kg/min, and the bubbles with the diameter of 0.2mm are not more than 0.01%.
6) And (3) spraying the treated coating on a special spraying machine from top to bottom, and then drying at 112 ℃.
7) And (4) the dried lamp tube enters an ultraviolet drying oven to be subjected to coating curing treatment. The ultraviolet wavelength was 365nm and the drying time was 10 minutes.
Example 5:
1) weighing the following components in percentage by weight: 550g of water-based polyacrylic resin, 14g of water-based polyurethane, 38g of nano calcium carbonate, 15g of nano silicon dioxide, 15g of zinc oxide, 16g of silane coupling agent, 1g of dispersing agent, 1g of defoaming agent, 0.8g of flatting agent and 530g of deionized water for later use; the dispersant is stearic acid amide dispersant; the defoaming agent is an organic silicon conventional water-based defoaming agent. The average particle diameter of the nano calcium carbonate and nano silicon dioxide particles is 9 μm.
2) Sequentially adding deionized water into the water-based polyacrylic resin in a stirring process, controlling the temperature at 27 ℃, controlling the speed of a stirrer at 260r/min, and then adding nano calcium carbonate;
3) then adding a defoaming agent, a flatting agent, a silane coupling agent, a dispersing agent, nano silicon dioxide and organic silica gel in sequence;
4) adding aqueous polyurethane, controlling the temperature of the added aqueous polyurethane solution at 56 ℃, then increasing the rotating speed of the stirrer to 2200r/min, mixing for 28 minutes, and uniformly mixing.
5) And pouring the uniformly mixed coating into an ultrasonic processor, and performing ultrasonic defoaming treatment, wherein the defoaming rate is not more than 10.5kg/min, and the bubbles with the diameter of 0.2mm are not more than 0.01%.
6) And (3) spraying the treated coating on a special spraying machine from top to bottom, and then drying at the drying temperature of 114 ℃.
7) And (4) the dried lamp tube enters an ultraviolet drying oven to be subjected to coating curing treatment. The ultraviolet wavelength was 365nm and the drying time was 10 minutes.
The coatings prepared using the coatings of examples 1-5 were tested for light transmittance, scattering uniformity, and adhesion, and the results are shown in Table 1:
table 1 surface: the coating prepared by the invention can achieve better light transmittance, scattering uniformity and adhesive force, thereby being capable of meeting the requirements.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
1. The photodiffusion coating for the LED lamp tube with high cohesiveness is characterized by being prepared from the following components in percentage by weight: 25-30% of water-based polyacrylic resin, 8-12% of water-based polyurethane, 6-10% of organic silica gel, 15-20% of nano calcium carbonate, 5-10% of nano silicon dioxide, 5-8% of zinc oxide, 1-2% of silane coupling agent, 0.2-0.6% of dispersing agent, 0.2-0.6% of defoaming agent, 0.2-0.6% of flatting agent and 20-30% of deionized water.
2. The photodiffusion coating for the high-cohesiveness LED lamp tube as claimed in claim 1, wherein: the average particle diameter of the nano calcium carbonate and nano silicon dioxide particles is 5-20 μm, preferably 8-15 μm, and more preferably 8-10 μm.
3. The photodiffusion coating for the high-cohesiveness LED lamp tube as claimed in claim 1, wherein: the dispersant is stearic acid amide dispersant.
4. The photodiffusion coating for the high-cohesiveness LED lamp tube as claimed in claim 1, wherein: the defoaming agent is a conventional water-based defoaming agent.
5. The method for preparing the light diffusion coating for the LED lamp tube with high adhesiveness as claimed in claim 1, wherein the method comprises the steps of:
1) weighing the following components in percentage by weight: 25-30% of water-based polyacrylic resin, 8-12% of water-based polyurethane, 15-20% of nano calcium carbonate, 5-10% of nano silicon dioxide, 5-8% of zinc oxide, 1-2% of silane coupling agent, 0.2-0.6% of dispersing agent, 0.2-0.6% of defoaming agent, 0.2-0.6% of flatting agent and 20-30% of deionized water for later use;
2) sequentially adding deionized water into the water-based polyacrylic resin in the stirring process, controlling the temperature at 20-30 ℃, controlling the speed of a stirrer at 200-;
3) then adding a defoaming agent and nano silicon dioxide in sequence;
4) finally, adding the aqueous polyurethane, controlling the temperature of the solution added with the aqueous polyurethane at 50-60 ℃, and then raising the rotating speed to 2000-2500 r/min for uniform mixing.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017448A (en) * | 2014-06-13 | 2014-09-03 | 浙江金陵光源电器有限公司 | Highly-thermally-conductive water-soluble photodiffusion coating as well as preparation method of the coating and preparation method of coating layer |
| CN105802398A (en) * | 2016-03-15 | 2016-07-27 | 盘锦凯米特新材料有限公司 | Environment-friendly water-based photodiffusion coating and preparation method and application thereof |
| CN106336757A (en) * | 2016-08-27 | 2017-01-18 | 欧振云 | Environmentally friendly water-based light diffusion coating |
| CN108300029A (en) * | 2016-08-31 | 2018-07-20 | 江苏金象赛瑞化工科技有限公司 | A kind of aqueous LED light diffusion coating and preparation method thereof |
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2019
- 2019-12-31 CN CN201911421319.0A patent/CN111349368A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017448A (en) * | 2014-06-13 | 2014-09-03 | 浙江金陵光源电器有限公司 | Highly-thermally-conductive water-soluble photodiffusion coating as well as preparation method of the coating and preparation method of coating layer |
| CN105802398A (en) * | 2016-03-15 | 2016-07-27 | 盘锦凯米特新材料有限公司 | Environment-friendly water-based photodiffusion coating and preparation method and application thereof |
| CN106336757A (en) * | 2016-08-27 | 2017-01-18 | 欧振云 | Environmentally friendly water-based light diffusion coating |
| CN108300029A (en) * | 2016-08-31 | 2018-07-20 | 江苏金象赛瑞化工科技有限公司 | A kind of aqueous LED light diffusion coating and preparation method thereof |
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Application publication date: 20200630 |