CN112596333A - Anion optical curtain and preparation process thereof - Google Patents

Abstract

The invention relates to the technical field of polylactic resin, in particular to an anion optical curtain and a preparation process thereof. The coating comprises a PVC base layer, and a micro prism layer, a reflecting layer, a protective layer and a functional coating which are arranged above the PVC base layer, wherein the functional coating comprises the following raw materials: the negative ion optical curtain and the preparation process thereof have the advantages that the polyester resin is generally formed by esterifying polyhydric alcohol and polybasic acid and is used for the optical curtain, the flexibility of the curtain can be improved, the glass fiber is applied to the optical curtain step by step, the insulation property is good, the heat resistance is strong, the corrosion resistance is good, the mechanical strength is high, the strength of the curtain is enhanced, and the service life of the curtain is prolonged.

Description

Anion optical curtain and preparation process thereof

Technical Field

The invention relates to the technical field of polylactic resin, in particular to an anion optical curtain and a preparation process thereof.

Background

The exquisite picture perceived by human eyes is visually displayed on the projection screen, the high-quality screen not only needs to realize the complete reproduction of the projection picture, but also has promotion effects on color reduction, brightness and contrast, and the perfectness of the projection picture is directly determined by the quality of the screen. The existing projection screen has the problems of unclear projected content, uneven brightness of the projected content, low brightness gain and the like, and cannot meet the desire of visual quality effect of audiences;

in a living environment, with the compression of highly developed floors and living spaces of industry, the quantity of negative oxygen ions in the living environment is reduced sharply, excessive positive ions or too few negative ions are contained in the air, blood platelets in blood are stimulated to produce 5-hydroxytryptamine and are transported to various tissues of the body through a circulating system, and the 5-hydroxytryptamine prevents oxygen absorption, typical symptoms are as follows: the symptoms can be counteracted when air containing more than 1000 negative ions/cubic centimeter enters a human body, the negative ions enter the human body through the mouth and the nose or directly through the skin, 5-hydroxytryptamine can be decomposed into a nontoxic by-product 5-oxindolyl acetic acid, and the by-product is discharged out of the body through urine, so that the harm is eliminated, and a series of benign reactions can be caused when the negative ions enter the human body. Negative ions are also called negative oxygen ions. Molecules in the air are ionized under special conditions, electrons with negative charges escape from the constraint of atomic nuclei, and the electrons are dissociated in the air and combined with other neutral molecules to generate negative ions with negative charges. Wherein the oxygen molecules are combined, so called negative ions, also called negative oxygen ions;

the existing optical curtain is made of plastic materials, so that the environmental protection performance is poor, the curtain is usually used in an early meeting room, harmful substances are easily emitted to the air during use, a human body inhales, the health of the body is easily influenced, and the defects of the prior art are improved by the novel optical curtain.

Disclosure of Invention

The invention aims to provide an anion optical curtain and a preparation process thereof, which aim to solve the problems in the background technology.

In order to achieve the above object, in one aspect, the present invention provides an anion optical curtain, including a PVC substrate layer, and a micro prism layer, a reflective layer, a protective layer and a functional coating layer located above the PVC substrate layer, wherein the functional coating layer includes the following raw materials: 70-100 parts of polyester resin, 20-40 parts of a functional agent, 5-10 parts of a flatting agent and 2-10 parts of a defoaming agent.

As a further improvement of the technical scheme, the polyester resin is at least one selected from epoxy resin, acrylic polyurethane and organic silicon modified polyester resin, the polyester resin is generally prepared by esterifying polyalcohol and polybasic acid and has two structures of pure linear type and branched type, a paint film prepared from the pure linear type structure resin has better flexibility and processability, and a paint film prepared from the branched type structure resin has more outstanding hardness and weather resistance.

As a further improvement of the technical scheme, the functional agent is selected from anion liquid, anions are a general name of single negatively charged gas molecules and hydrogen ion groups, in a natural ecosystem, forests and wetlands are important places for generating air anions, have a regulating effect in the aspects of air purification, urban microclimate and the like, have a concentration level which is one of indexes for urban air quality evaluation, serve as one of important members of active oxygen, have strong redox effect due to the fact that the negatively charged anions are similar to superoxide radicals in structure, can destroy barriers of bacterial and viral charges and activity of bacterial cell active enzymes, and can settle suspended particles in air.

As a further improvement of the technical scheme, the leveling agent is an organic silicon leveling agent, the organic silicon leveling agent is selected from at least one of polydimethylsiloxane, polyether polyester modified organic siloxane and alkyl modified organic siloxane, the leveling agent is a common coating auxiliary agent, and can promote the coating to form a flat, smooth and uniform coating film in the drying film-forming process, effectively reduce the surface tension of the coating liquid, improve the leveling property and uniformity of the coating liquid, improve the permeability of the coating liquid, reduce the possibility of generating spots and stains during brushing, increase the coverage property and enable the film to be formed uniformly and naturally.

As a further improvement of the technical scheme, the defoaming agent is selected from polyether modified organic silicon defoaming agents, the defoaming agent is a silicon ether copolymer obtained by modifying and grafting polyether chain segments or polysiloxane chain segments, the advantages of the polyether chain segments or the polysiloxane chain segments are organically combined to obtain a novel efficient defoaming agent, and the novel efficient defoaming agent has the advantages of good dispersibility, strong foam inhibition capability, stability, no toxicity, low volatility, strong defoaming effect and the like.

As a further improvement of the technical scheme, the protective layer is made of glass fiber cloth, the thickness of the glass fiber cloth is 1-3mm, the glass fiber is an inorganic non-metallic material with excellent performance, and the curtain is various in variety, and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, the strength of the curtain is enhanced, and the service life of the curtain is prolonged.

As a further improvement of the technical scheme, the reflective layer is a metal reflective layer, the metal material is aluminum, silver and copper, when a light beam is incident to the surface of the metal from air, the amplitude of light entering the metal is rapidly attenuated, so that the light energy entering the metal is correspondingly reduced, the reflected light energy is increased, the extinction coefficient is larger, the attenuation of the light amplitude is quicker, the light energy entering the metal is less, the reflectivity is higher, and the metal reflective coating has the advantages of simple preparation process and wide working wavelength range.

In another aspect, the present invention provides a process for preparing an anion optical curtain, including any one of the anion optical curtain described above, wherein the process comprises: the method comprises the following operation steps:

s1, placing the micro prism layer on the PVC substrate layer, and heating and pressing;

s2, placing the protective layer and the reflective layer on the micro prism layer, and heating and pressing;

s3, melting the polyester resin, adding the functional agent, and ultrasonically dispersing to mix the solution;

s4, adding a flatting agent and a defoaming agent, ultrasonically dispersing, mixing the solution, and standing to obtain the functional coating;

and S5, uniformly coating the coating on the surface of the reflecting layer, drying and cooling to obtain the optical curtain.

Preferably, in the S1, the pressing temperature is 110-130 ℃, and in the S2, the pressing temperature is 90-110 ℃.

Preferably, in S3-S4, the ultrasonic dispersion time is 15-30min, and the solution can be dispersed and mixed without adding a dispersing agent, so that the dispersing agent is prevented from influencing the comprehensive properties of the coating.

Compared with the prior art, the invention has the beneficial effects that:

1. in the anion optical curtain and the preparation process thereof, anions are added into the coating, so that the prepared optical curtain has the effects of regulating the aspects of air purification, urban microclimate and the like when in use, effectively increasing the quantity of the anions in the existing living and living environment and being beneficial to the health.

2. In the anion optical curtain and the preparation process thereof, the polyester resin is generally prepared by esterifying polyalcohol and polybasic acid and is used for the optical curtain, so that the flexibility of the curtain can be improved.

3. In the anion optical curtain and the preparation process thereof, the glass fiber is applied to the optical curtain, and the anion optical curtain has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, strengthens the strength of the curtain and prolongs the service life of the curtain.

Drawings

Fig. 1 is an overall flow chart of embodiment 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Embodiment 1 an anion optical curtain and a preparation process thereof, comprising;

preparation of functional paint

Melting 100 parts of polyester resin, adding 20 parts of functional agent, and ultrasonically dispersing for 15-30min to mix the solution; and adding 5 parts of flatting agent and 2 parts of defoaming agent, performing ultrasonic dispersion for 15-30min, mixing the solutions, and standing for 2-6h to obtain the functional coating.

Second, curtain preparation

Placing the micro prism layer on the PVC substrate layer, heating to 110-; placing the protective layer and the reflecting layer on the micro prism layer, heating to 90-110 ℃ and pressing; and uniformly coating the coating on the surface of the reflecting layer, drying and cooling for 2-4h to obtain the optical curtain.

Embodiment 2 an anion optical curtain and a process for preparing the same, comprising;

preparation of functional paint

Melting 92.5 parts of polyester resin, adding 25 parts of functional agent, and ultrasonically dispersing for 15-30min to mix the solution; and adding 9 parts of flatting agent and 8 parts of defoaming agent, performing ultrasonic dispersion for 15-30min, mixing the solutions, and standing for 2-6h to obtain the functional coating.

Second, curtain preparation

Placing the micro prism layer on the PVC substrate layer, heating to 110-; placing the protective layer and the reflecting layer on the micro prism layer, heating to 90-110 ℃ and pressing; and uniformly coating the coating on the surface of the reflecting layer, drying and cooling for 2-4h to obtain the optical curtain.

Embodiment 3 an anion optical curtain and a process for preparing the same, comprising;

preparation of functional paint

Melting 85 parts of polyester resin, adding 30 parts of functional agent, and ultrasonically dispersing for 15-30min to mix the solution; and adding 8 parts of flatting agent and 6 parts of defoaming agent, performing ultrasonic dispersion for 15-30min, mixing the solutions, and standing for 2-6h to obtain the functional coating.

Second, curtain preparation

Placing the micro prism layer on the PVC substrate layer, heating to 110-; placing the protective layer and the reflecting layer on the micro prism layer, heating to 90-110 ℃ and pressing; and uniformly coating the coating on the surface of the reflecting layer, drying and cooling for 2-4h to obtain the optical curtain.

Embodiment 4 an anion optical curtain and a process for preparing the same, comprising;

preparation of functional paint

Melting 77.5 parts of polyester resin, adding 25 parts of functional agent, and ultrasonically dispersing for 15-30min to mix the solution; and adding 7 parts of flatting agent and 4 parts of defoaming agent, performing ultrasonic dispersion for 15-30min, mixing the solutions, and standing for 2-6h to obtain the functional coating.

Second, curtain preparation

Placing the micro prism layer on the PVC substrate layer, heating to 110-; placing the protective layer and the reflecting layer on the micro prism layer, heating to 90-110 ℃ and pressing; and uniformly coating the coating on the surface of the reflecting layer, drying and cooling for 2-4h to obtain the optical curtain.

Embodiment 5 an anion optical curtain and process for making the same, comprising;

preparation of functional paint

Melting 70 parts of polyester resin, adding 40 parts of functional agent, and ultrasonically dispersing for 15-30min to mix the solution; and adding 10 parts of flatting agent and 10 parts of defoaming agent, performing ultrasonic dispersion for 15-30min, mixing the solutions, and standing for 2-6h to obtain the functional coating.

Second, curtain preparation

Placing the micro prism layer on the PVC substrate layer, heating to 110-; placing the protective layer and the reflecting layer on the micro prism layer, heating to 90-110 ℃ and pressing; and uniformly coating the coating on the surface of the reflecting layer, drying and cooling for 2-4h to obtain the optical curtain.

The polyester resin is at least one selected from epoxy resin, acrylic polyurethane and organic silicon modified polyester resin, the polyester resin is generally prepared by esterifying polyalcohol and polybasic acid and has two structures of pure linear type and branched type, a paint film prepared from the pure linear type structure resin has better flexibility and processability, and a paint film prepared from the branched type structure resin has more outstanding hardness and weather resistance;

the functional agent is selected from anion liquid, the anion is the general name of single gas molecule and hydrogen ion group with negative charge, in the natural ecosystem, forest and wetland are important places for generating air anion, and have regulating action in the aspects of air purification, urban microclimate and the like, the concentration level is one of indexes for urban air quality evaluation, and the concentration level is one of important members of active oxygen, and as the negative charge is similar to superoxide radical in structure, the redox action is strong, the barrier of bacterial virus charge and the activity of active enzyme of bacterial cells can be destroyed, and in addition, the anion can settle suspended particles in the air;

the leveling agent is an organic silicon leveling agent, the organic silicon leveling agent is selected from at least one of polydimethylsiloxane, polyether polyester modified organic siloxane and alkyl modified organic siloxane, the leveling agent is a common coating additive, and can promote the coating to form a flat, smooth and uniform coating film in the drying film-forming process, effectively reduce the surface tension of the coating liquid, improve the leveling property and uniformity of the coating liquid, improve the permeability of the coating liquid, reduce the possibility of generating spots and scars during brushing, increase the coverage property and enable the film forming to be uniform and natural;

the defoaming agent is selected from polyether modified organic silicon defoaming agents, the defoaming agent is a silicon ether copolymer obtained by modifying and grafting polyether chain segments or polysiloxane chain segments, the advantages of the polyether chain segments or the polysiloxane chain segments are organically combined to obtain a novel efficient defoaming agent, and the novel efficient defoaming agent has the advantages of good dispersibility, strong foam inhibition capability, stability, no toxicity, low volatility, strong defoaming effect and the like;

the protective layer is made of glass fiber cloth, the thickness of the glass fiber cloth is 1-3mm, the glass fiber is an inorganic non-metallic material with excellent performance, and the protective layer has a plurality of varieties, has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, strengthens the strength of the curtain and prolongs the service life of the curtain;

the reflecting layer is a metal reflecting layer, the metal material is aluminum, silver and copper, when light beams enter the metal surface from air, the light amplitude entering the metal is quickly attenuated, so that the light energy entering the metal is correspondingly reduced, the reflected light energy is increased, the larger the extinction coefficient is, the quicker the light amplitude is attenuated, the less the light energy enters the metal is, and the higher the reflectivity is, and the metal reflecting layer has the advantages of simple preparation process and wide working wavelength range.

The negative ion optical curtain prepared by the invention has better environmental protection and flame retardance, and the detection indexes of the negative ion optical curtain prepared by the invention are shown in table 1:

TABLE 1

As shown in Table 1, the anion optical curtain prepared by the invention can enhance the immunity and antibacterial power of human body when the anion content in the air is 1000-10000, and can sterilize and reduce the disease infection when the anion content in the air is 5000-10000, and in examples 1-5, the anion content in the air is higher than the standard value, so that the environment protection of the optical curtain can be influenced by adding anion liquid into the functional coating;

in example 3, the heat resistant temperature of the optical curtain was the highest, and thus it can be seen that when 85 parts of polyester resin, 30 parts of functional agent, 8 parts of leveling agent and 6 parts of defoaming agent were used, the flame retardancy and environmental protection of the optical curtain were the best.

Comparative example 1 an anionic optical curtain and process for making the same, comprising;

preparation of functional paint

Melting 85 parts of polyester resin, adding 8 parts of flatting agent and 6 parts of defoaming agent, ultrasonically dispersing for 15-30min, mixing the solutions, and standing for 2-6h to obtain the functional coating.

Second, curtain preparation

Placing the micro prism layer on the PVC substrate layer, heating to 110-; placing the protective layer and the reflecting layer on the micro prism layer, heating to 90-110 ℃ and pressing; and uniformly coating the coating on the surface of the reflecting layer, drying and cooling for 2-4h to obtain the optical curtain.

The anion optical curtain prepared by the invention has better environmental protection performance and has a larger relationship with the functional agent added into the anion optical curtain, and the relevant indexes of the anion optical curtain prepared by the invention are shown in the following table 2:

TABLE 2

As shown in table 2, in comparative example 1, when the functional agent is removed, the content of negative air ions is less than 100/cm 3, and the content of negative air ions is less than 100/cm 3, it is known that physiological disorders such as headache and insomnia can be induced, so that it can be seen that the addition of the functional agent to the functional coating is an important factor affecting the environmental protection of the optical curtain.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. An anion optical curtain which is characterized in that: the coating comprises a PVC base layer, and a micro prism layer, a reflecting layer, a protective layer and a functional coating which are arranged above the PVC base layer, wherein the functional coating comprises the following raw materials: 70-100 parts of polyester resin, 20-40 parts of a functional agent, 5-10 parts of a flatting agent and 2-10 parts of a defoaming agent.

2. The negative ion optical curtain of claim 1, wherein: the polyester resin is selected from at least one of epoxy resin, acrylic polyurethane and organic silicon modified polyester resin.

3. The negative ion optical curtain of claim 1, wherein: the functional agent is selected from anion liquid.

4. The negative ion optical curtain of claim 1, wherein: the leveling agent is an organic silicon leveling agent, and the organic silicon leveling agent is selected from at least one of polydimethylsiloxane, polyether polyester modified organic siloxane and alkyl modified organic siloxane.

5. The negative ion optical curtain of claim 1, wherein: the defoaming agent is selected from polyether modified organic silicon defoaming agents.

6. The negative ion optical curtain of claim 1, wherein: the protective layer is glass fiber cloth, and the thickness of the glass fiber cloth is 1-3 mm.

7. The negative ion optical curtain of claim 1, wherein: the reflecting layer is a metal reflecting layer.

8. A process for producing an anionic optical curtain comprising the anionic optical curtain of any one of claims 1-7, wherein: the method comprises the following operation steps:

s1, placing the micro prism layer on the PVC substrate layer, and heating and pressing;

s2, placing the protective layer and the reflective layer on the micro prism layer, and heating and pressing;

s3, melting the polyester resin, adding the functional agent, and ultrasonically dispersing to mix the solution;

s4, adding a flatting agent and a defoaming agent, ultrasonically dispersing, mixing the solution, and standing to obtain the functional coating;

and S5, uniformly coating the coating on the surface of the reflecting layer, drying and cooling to obtain the optical curtain.

9. The process of claim 8, wherein the anion optical curtain comprises: the pressing temperature in S1-S2 is 110-130 ℃, and the pressing temperature in S2 is 90-110 ℃.

10. The process of claim 8, wherein the anion optical curtain comprises: in the S3-S4, the ultrasonic dispersion time is 15-30 min.

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