CN112048141A - Mixed material for display screen base material of intelligent equipment - Google Patents
Mixed material for display screen base material of intelligent equipment Download PDFInfo
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- CN112048141A CN112048141A CN202010845143.8A CN202010845143A CN112048141A CN 112048141 A CN112048141 A CN 112048141A CN 202010845143 A CN202010845143 A CN 202010845143A CN 112048141 A CN112048141 A CN 112048141A
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- 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
- C08K3/02—Elements
- C08K3/04—Carbon
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- 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
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
Abstract
The invention discloses a mixed material for a display screen base material of intelligent equipment, which consists of the following components in parts by weight: 99.9-99.99 parts of fluorocarbon polymer and 0.01-0.1 part of carbon black particles, wherein the effective component of the fluorocarbon polymer is a polymer formed by copolymerizing tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride, and the carbon black particles are low-structure pigment carbon black. The mixed material of the invention has excellent optical performance, higher toughness and ductility.
Description
Technical Field
The invention relates to the technical field of display screen materials of intelligent equipment, in particular to a mixed material for a display screen base material of the intelligent equipment.
Background
The intelligent device display screen is a display tool which displays a certain electronic file on the screen through a specific transmission device instrument and reflects the electronic file to human eyes, wherein the base material of the screen determines the display effect of the display screen to a great extent. Along with the development of intelligent equipment to the directions such as comprehensive screen and surrounding touch-sensitive screen, the substrate material of display screen also from hard materials such as traditional glass, acryl board to flexible material of present, and its high temperature resistance, performances such as surface roughness need be considered in the selection of flexible substrate, especially toughness and the luminousness of substrate: the higher the toughness of the base material is, the more the display screen can be folded for multiple times; the light transmittance directly influences the visual effect of the display screen, and the better the light transmittance is, the better the visual effect of the display screen is.
At present, the commonly used flexible base materials comprise PI, PET, PEN and the like, the light transmittance of the base materials of the display screens is generally 2-70%, the range is wide, the change is large, the contrast of light rays emitted by the screens is uneven, eyes are easy to fatigue and dry to hurt a tear film layer, the vision is affected, and the visual effect is also affected; on the other hand, the deformation of the display screen base materials used at present is only about 3.5 times at most, and the toughness of the base materials needs to be improved.
Fluorocarbon polymers are usually a polymer obtained by copolymerizing a fluorine-containing monomer and one or more non-fluorine monomers, and at present, fluorocarbon polymers are mainly used in the coating industry, and fluorocarbon coatings have excellent performances such as weather resistance, heat resistance, low temperature resistance and chemical resistance, and have unique non-adhesiveness and low friction. The application of the fluorocarbon polymer in the aspect of electronic equipment is generally only used as a partial raw material of a screen protective film layer, and the fluorocarbon polymer is not reported to be used as a flexible display screen substrate at present.
Chinese patent publication No. CN210110227U discloses a flexible light-emitting printed screen, which includes a base material, a conductive light-emitting layer group and a packaging layer, wherein the base material is a plastic substrate, paper or a fabric of clothes, and the plastic substrate material is TPU, PET or PEN.
Chinese patent publication No. CN110469656A discloses a flexible transparent display screen and a method for manufacturing the same, including a transparent substrate, a transparent conductive layer mounted on the transparent substrate, and LED lamps mounted on pads of the metal conductive layer, where the LED lamps and the metal conductive layer form a conductive path, a filler is disposed between the LED lamps to form a filling layer, a transparent flexible protective film is disposed on the filling layer, and the transparent substrate is a film material of a resin, a PET or PE film.
Chinese patent publication No. CN107573622A discloses a screen protective film for notebook computer, which is prepared from the following raw materials in parts by weight: beeswax matrix, butyl acrylate, polytetrafluoroethylene, silane gamma-methacryloxypropyltrimethoxysilane, low-density polyethylene, sodium alginate, polyglycerol fatty acid ester, lauric acid monoglyceride, polymeric alumina, terpene resin, zeolite powder, gelatin, ethanol, deionized water, a film-forming assistant, nano ferroferric oxide microspheres and silicon dioxide powder. The fluorocarbon polymer in this patent document is also only a constituent of the screen protective film.
Disclosure of Invention
The present invention is directed to solve the above-mentioned problems, and an object of the present invention is to provide a hybrid material for a display substrate of a smart device, which has excellent optical properties, high toughness and ductility.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the mixed material for the display screen base material of the intelligent equipment comprises the following components in parts by weight:
99.9-99.99 parts of fluorocarbon polymer
0.01 to 0.1 part of carbon black particles
Further, the mixed material comprises the following components in parts by weight:
99.95-99.99 parts of fluorocarbon polymer
0.01 part of carbon black particles
Further, the fluorocarbon polymer is at least one of powdered or granular.
Further, the effective component of the fluorocarbon polymer is a polymer formed by copolymerizing tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride.
Further, the mass ratio of the tetrafluoroethylene to the hexafluoropropylene to the vinylidene fluoride is 1:3: 6.
Further, the melting point of the fluorocarbon polymer is 265-.
Further, the carbon black particles are pigment carbon black.
Further, the carbon black particles are low-structure pigment carbon black.
Further, the particle diameter of the carbon black particles is 50 to 150 nm.
The invention has the beneficial effects that:
1. the display screen base material is obtained by using the fluorocarbon polymer formed by specific components and proportions as a main component, the fluorocarbon polymer takes a large number of C-F bonds as a framework, so that the fluorocarbon polymer has super-strong stability and weather resistance, and meanwhile, alkyl is introduced into the fluorocarbon polymer to enhance the flexibility of the material, so that the display screen base material obtained by using the fluorocarbon polymer as the main component has super-strong weather resistance, chemical medium corrosion resistance, wear resistance, better toughness and ductility compared with the current common display screen base material; on the other hand, a part of light is absorbed by the carbon black particles added in a proper proportion, so that the light absorption capacity of the fluorocarbon polymer is improved, the mixture is mixed in batches, fed in batches and pre-dispersed by a planetary ball mill, then the mixture is placed into a specific ellipsoidal glass bottle and placed in a multidimensional shaking machine to carry out three-dimensional sufficient motion on the mixed material so as to achieve the sufficiency of solid-solid mixing, and the nano-level carbon black particles are uniformly dispersed into the fluorocarbon polymer through the synergistic effect of all aspects, so that the optical performance of the mixed material is improved; the average tensile strength of the obtained mixed material is 17.04-19.35Mpa, the tensile deformation can reach 514.5-535.4%, the material has deformation amount more than 5 times on the premise of higher tensile strength, the requirement of a flexible display screen on higher toughness is met, the display screen base material has better optical performance, the light transmittance is 2-17%, the range is narrow, the change is small, the light ray contrast emitted by the screen of an electronic product is uniform, the eyes are not easily injured, and the visual effect of the display screen is obviously enhanced.
2. The preparation method of the mixed material has simple process, no organic or inorganic solvent is added in the production process, no waste liquid, solid waste and toxic and harmful gas are generated in the production process, and no VOC is discharged, so the whole preparation process can not cause environmental pollution; on the other hand, because of the excellent heat resistance of the fluorocarbon plastic, toxic and harmful gas can not be generated in the downstream processing process; the material preparation and performance are green and environment-friendly, the cost is low, and conditions are provided for large-scale production.
Drawings
FIG. 1 is a process flow diagram of the present invention for preparing hybrid materials for smart device display substrates.
Fig. 2 to 4 are 10000 times photographs under a scanning electron microscope of the mixed material for a smart device display substrate prepared in examples 1 to 3, respectively.
Fig. 5 to 7 are 100000-fold photographs under a scanning electron microscope of the mixed material for a smart device display substrate prepared in examples 1 to 3, respectively.
Fig. 8 to 9 are photographs of the mixed material for a smart device display substrate prepared in the comparative example, 10000 times and 100000 times, respectively, under a scanning electron microscope.
Fig. 10 to 12 are views showing the distribution of particles observed in a significantly enlarged view of an optical microscope for the mixed materials for smart device display substrates prepared in examples 1 to 3, respectively.
Fig. 13 is a view of the distribution of particles observed in a significantly enlarged view of an optical microscope for a hybrid material for a smart device display substrate prepared in a comparative example.
FIGS. 14 to 16 are transmittance curves of the hybrid materials for smart device display substrates prepared in examples 1 to 3 in the visible wavelength range of 400 to 700nm, respectively.
FIG. 17 is a light transmittance curve of the hybrid material for a smart device display screen substrate prepared in the comparative example in a visible light wavelength range of 400 to 700 nm.
FIGS. 18 to 20 are graphs of displacement-force curves measured by tensile tests of the hybrid materials for smart device display substrates prepared in examples 1 to 3, respectively.
Fig. 21 is a graph of displacement versus force curves measured by a tensile test of a hybrid material for a smart device display substrate prepared in a comparative example.
FIGS. 22-24 are shear rate vs. viscosity plots at constant temperature-change shear rate for the hybrid materials prepared in examples 1-3 for smart device display substrates, respectively.
FIG. 25 is a shear rate-viscosity graph at constant temperature-change shear rate for a hybrid material for a smart device display substrate prepared in a comparative example.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are specifically described.
The following examples a process flow for preparing a hybrid material for a smart device display substrate is shown in figure 1,
the zirconia beads used in the following examples were 0.5mm in size.
Example 1
The mixed material for the display screen base material of the intelligent equipment is prepared by the following preparation method:
s1 material preparation
Adding 495g of fluorocarbon polymer, 5g of carbon black particles and 250g of zirconia beads into a zirconia tank in sequence, and sealing for later use;
s2 Pre-Dispersion of materials
Placing the zirconia pot prepared in the step S1 in a planetary ball mill for pre-dispersion, wherein the autokinetic velocity of the ball mill is 120 +/-6 revolutions per minute, the revolution velocity is 12 +/-1 revolutions per minute, mixing for 1 +/-0.1 h, and discharging to obtain a mixture A;
s3 dispersing of materials
Respectively putting the mixture A obtained in the step S2 into a plurality of 480mL ellipsoidal glass bottles, adding 1/2 of the mixture A, the volume of which is not more than that of each glass bottle, into each glass bottle, sealing, further dispersing in a multidimensional shaking machine, shaking and mixing for 3h, and discharging to obtain color master powder A;
s4 separation of zirconia beads
Putting the color master batch powder A obtained in the step S3 into a screening instrument for running for 15min, and removing zirconia beads to obtain color master batch powder B;
s5, granulating color master batch powder
Placing the color master batch B obtained in the step S4 in a double-screw extruder set for granulation, and drying to obtain a fluorocarbon polymer color master batch, wherein the processing temperature of the double-screw extruder set is 140-250 ℃, the rotating speed of the double screws is 100-120 r/min, the rotating speed of a granulator is 40-60 r/min, and the particle cooling temperature is 40-60 ℃;
s6, secondary preparation of materials
Respectively adding 10g of the fluorocarbon polymer color master batch obtained in the step S5 and 90g of the fluorocarbon polymer into a plurality of designated containers in sequence, and shaking up to obtain a plurality of groups of mixtures B for later use;
s7, granulating
Preparing a plurality of batches of samples from the mixture B obtained in the step S6 according to 300-400 g, uniformly mixing the samples, putting the samples into a double-screw extruder set according to batches for granulation, and drying to obtain the product, wherein the feeding speed is 40-50 g/min, the processing temperature of the double-screw extruder set is 140-250 ℃, the rotating speed of the double screws is 100-120 r/min, the rotating speed of a granulator is 20-40 r/min, and the particle cooling temperature is 40-60 ℃.
Example 2
The mixed material for the display screen base material of the intelligent equipment is prepared by the following preparation method:
s1 material preparation
Adding 495g of fluorocarbon polymer, 5g of carbon black particles and 250g of zirconia beads into a zirconia tank in sequence, and sealing for later use;
s2 Pre-Dispersion of materials
Placing the zirconia pot prepared in the step S1 in a planetary ball mill for pre-dispersion, wherein the autokinetic velocity of the ball mill is 120 +/-6 revolutions per minute, the revolution velocity is 12 +/-1 revolutions per minute, mixing for 1 +/-0.1 h, and discharging to obtain a mixture A;
s3 dispersing of materials
Respectively putting the mixture A obtained in the step S2 into a plurality of 480mL ellipsoidal glass bottles, adding 1/2 of the mixture A, the volume of which is not more than that of each glass bottle, into each glass bottle, sealing, further dispersing in a multidimensional shaking machine, shaking and mixing for 3h, and discharging to obtain color master powder A;
s4 separation of zirconia beads
Putting the color master batch powder A obtained in the step S3 into a screening instrument for running for 15min, and removing zirconia beads to obtain color master batch powder B;
s5, granulating color master batch powder
Placing the color master batch B obtained in the step S4 in a double-screw extruder set for granulation, and drying to obtain a fluorocarbon polymer color master batch, wherein the processing temperature of the double-screw extruder set is 140-250 ℃, the rotating speed of the double screws is 100-120 r/min, the rotating speed of a granulator is 40-60 r/min, and the particle cooling temperature is 40-60 ℃;
s6, secondary preparation of materials
Respectively adding 5g of the fluorocarbon polymer color master batch obtained in the step S5 and 95g of fluorocarbon polymer into a plurality of designated containers in sequence, and shaking up to obtain a plurality of groups of mixtures B for later use;
s7, granulating
Preparing a plurality of batches of samples from the mixture B obtained in the step S6 according to 300-400 g, uniformly mixing the samples, putting the samples into a double-screw extruder set according to batches for granulation, and drying to obtain the product, wherein the feeding speed is 40-50 g/min, the processing temperature of the double-screw extruder set is 140-250 ℃, the rotating speed of the double screws is 100-120 r/min, the rotating speed of a granulator is 20-40 r/min, and the particle cooling temperature is 40-60 ℃.
Example 3
The mixed material for the display screen base material of the intelligent equipment is prepared by the following preparation method:
s1 material preparation
Adding 495g of fluorocarbon polymer, 5g of carbon black particles and 250g of zirconia beads into a zirconia tank in sequence, and sealing for later use;
s2 Pre-Dispersion of materials
Placing the zirconia pot prepared in the step S1 in a planetary ball mill for pre-dispersion, wherein the autokinetic velocity of the ball mill is 120 +/-6 revolutions per minute, the revolution velocity is 12 +/-1 revolutions per minute, mixing for 1 +/-0.1 h, and discharging to obtain a mixture A;
s3 dispersing of materials
Respectively putting the mixture A obtained in the step S2 into a plurality of 480mL ellipsoidal glass bottles, adding 1/2 of the mixture A, the volume of which is not more than that of each glass bottle, into each glass bottle, sealing, further dispersing in a multidimensional shaking machine, shaking and mixing for 3h, and discharging to obtain color master powder A;
s4 separation of zirconia beads
Putting the color master batch powder A obtained in the step S3 into a screening instrument for running for 15min, and removing zirconia beads to obtain color master batch powder B;
s5, granulating color master batch powder
Placing the color master batch B obtained in the step S4 in a double-screw extruder set for granulation, and drying to obtain a fluorocarbon polymer color master batch, wherein the processing temperature of the double-screw extruder set is 140-250 ℃, the rotating speed of the double screws is 100-120 r/min, the rotating speed of a granulator is 40-60 r/min, and the particle cooling temperature is 40-60 ℃;
s6, secondary preparation of materials
Respectively adding 1g of the fluorocarbon polymer color master batch obtained in the step S5 and 99g of the fluorocarbon polymer into a plurality of designated containers in sequence, and shaking up to obtain a plurality of groups of mixtures B for later use;
s7, granulating
Preparing a plurality of batches of samples from the mixture B obtained in the step S6 according to 300-400 g, uniformly mixing the samples, putting the samples into a double-screw extruder set according to batches for granulation, and drying to obtain the product, wherein the feeding speed is 40-50 g/min, the processing temperature of the double-screw extruder set is 140-250 ℃, the rotating speed of the double screws is 100-120 r/min, the rotating speed of a granulator is 20-40 r/min, and the particle cooling temperature is 40-60 ℃.
Comparative example
The comparative example uses a process in which S3, S5 and S6 are reduced as compared with the above examples, and the mixture is directly granulated after separation of zirconia beads.
The mixed material is prepared by the following steps:
s1: material allocation
499.75g of fluorocarbon polymer, 0.25g of carbon black particles and 250g of zirconia beads are sequentially added into a zirconia tank, and the mixture is sealed for later use;
s2: pre-dispersion of materials
Placing the zirconia pot prepared in the step S1 in a planetary ball mill for pre-dispersion, wherein the ball mill has a self-transmission speed of 120 revolutions per minute and a revolution speed of 12 revolutions per minute, mixing for 1h, and discharging to obtain a mixture A;
s3: separation of zirconia beads
Putting the mixture A obtained in the step S3 into a sieving instrument for running for 15min, and removing zirconia beads to obtain a mixture B;
s4: material allocation
Adding 100g of the mixture B obtained in the step S3 into a plurality of designated containers in sequence to obtain a mixture C for later use;
s5: granulation of finished product
Preparing a plurality of samples from the mixture C obtained in the step S4 according to 100-200 g, uniformly mixing the samples, putting the samples into a double-screw extruder set according to batches for granulation, and drying to obtain the product, wherein the feeding speed is 40-50 g/min, the processing temperature of the double-screw extruder set is 140-250 ℃, the rotating speed of the double screws is 100-120 r/min, the rotating speed of a granulator is 20-40 r/min, and the particle cooling temperature is 40-60 ℃.
[ characterizations ] of
1. Scanning electron microscope detection
FIGS. 2 to 4 are photographs of the mixed materials prepared in examples 1 to 3 under a scanning electron microscope at 10000 times, and FIGS. 5 to 7 are photographs of the mixed materials prepared in examples 1 to 3 under a scanning electron microscope at 100000 times, as shown in the figures, the circles in the figures mark carbon black particles of nanometer grade, which are uniformly distributed on the fluorocarbon polymer substrate, the carbon black particles have a diameter less than 1 μm and are distributed independently of each other, and the carbon black particles mainly affect the light transmittance of the fluorocarbon polymer itself, so that the light transmittance of the mixed materials is distributed in a uniform range.
FIGS. 8 to 9 are photographs of the comparative examples respectively showing the prepared mixed materials under scanning electron microscope at 10000 times and 100000 times, from which it can be seen that the diameter of carbon black particles is more than 1 μm, and the carbon black particles are aggregated and unevenly dispersed, and it can be seen that the lack of material dispersion, granulation of color masterbatch particles and secondary disposition of materials affects the distribution of the carbon black particles.
2. Digital electron microscope detection
Fig. 10 to 12 are views of mixed materials prepared in examples 1 to 3, which are observed in a significantly enlarged view through an optical microscope, wherein the cleanliness of the prepared materials is higher with less impurity particles, and in a spliced picture of 0.5mm × 0.5mm at 1000 × as shown in the figure, the circles in the picture are partial impurity particles, example 1 contains 15 impurity particles, example 2 contains 29 impurity particles, and example 3 contains 25 impurity particles, and the impurity particle number of the mixed materials is low, so that the cleanliness of the materials is ensured.
Fig. 13 is a view of the distribution of the granules observed in a greatly enlarged view by an optical microscope of the mixed material prepared in the comparative example, which contains 68 impurity granules, and it is known that the cleanliness of the material is affected in the absence of material dispersion, granulation of the masterbatch powder particles, and secondary arrangement of the material.
[ Performance test ]
1. Light transmittance
Fig. 14 to 16 are transmittance curves of the mixed materials prepared in examples 1 to 3 in the visible light wavelength range of 400 to 700nm, and as shown in the figures, the transmittance range of the mixed material of example 1 is 3 to 17%, the transmittance range of the mixed material of example 2 is 2 to 17%, and the transmittance range of the mixed material of example 3 is 2.5 to 17%, the slope of the mixed material is almost unchanged, the transmittance range is narrow and the change is small, so that it can be seen that the contrast of light emitted from the display screen obtained by the substrate is uniform, and the visual effect of the display screen can be significantly enhanced.
FIG. 17 is a transmittance curve of the hybrid material prepared in the comparative example in the visible wavelength range of 400 to 700nm, the transmittance of the hybrid material in the comparative example is in the range of 2 to 20%, and the transmittance is relatively poor.
2. Tensile test
Fig. 18-20 are the tensile tests of the mixed materials prepared in examples 1-3, wherein 3 lines in each graph are the elongation-tensile force curves of 3 parallel samples, the maximum force borne by the materials when the materials are pulled apart and the displacement generated when the materials are pulled apart can be known from the graphs, the average tensile strength of the materials in example 1 is 19.35Mpa, the tensile deformation is 535.4%, the average tensile strength of the materials in example 2 is 17.04pa, the tensile deformation is 514.5%, the average tensile strength of the materials in example 3 is 17.95Mpa, and the tensile deformation is 533.0%, and the data shows that the mixed materials have the deformation amount more than 5 times under the premise of having larger tensile strength, thereby meeting the requirement that the flexible display screen needs to have higher toughness.
FIG. 21 is a tensile test of the hybrid material of the comparative example, with an average tensile strength of 19.31pa and a tensile set of 537.3%, so the missing step does not affect the mechanical properties of the material itself.
3. Viscosity measurement
FIGS. 22-24 are shear rate-viscosity curves at constant temperature-shear rate for the mixed materials prepared in examples 1-3, and the change in viscosity at different shear rates of the materials can be observed, for newtonian fluids, viscosity and ductility are directly proportional within certain ranges, as shown in the figure, in the molten state, as the shear rate increases, within the range of 100 to 10001/s, the viscosity of the material obtained in the embodiment is kept stable and slowly reduced, wherein the sample viscosity at 125/s shear rate of example 1 is 285pa.s, at 125/s shear rate of example 2 is 282pa.s, at 125/s shear rate of example 3 is 284pa.s, as read in the raw assay data, it can thus be seen that the mixed material still has a high and stable ductility with shear, facilitating processing during production and downstream applications.
FIG. 25 is a shear rate-viscosity curve at constant temperature-variable shear rate of a mixed material prepared in comparative example, as shown in the graph, the viscosity remained stable and slowly decreased in the shear rate range of 100 to 10001/s with the increase of the shear rate in the molten state, wherein the viscosity of the sample at shear rate of 125/s was 310pa.s, which was read in the original test data, so that the method used in comparative example did not affect the ductility of the material.
Compared with the prior art in which the light transmittance of the base material is generally in the range of 2-70%, the light transmittance of the base material in the embodiments 1-3 is kept in the range of 2-17%, the range is narrow, and the change is small, so that the contrast of light emitted by the screen of an electronic product is uniform, the eyes are not easily damaged, and the visual effect of the display screen is remarkably enhanced; compared with the existing display screen base material which has the maximum deformation amount of only about 3.5 times, the base material of the embodiments 1-3 has the deformation amount of more than 5 times on the premise of higher tensile strength, and meets the requirement of a flexible display screen on higher toughness; compared with a comparative example, the substrate prepared by the preparation process provided by the invention has better optical performance.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (9)
1. The mixed material for the display screen base material of the intelligent equipment is characterized by comprising the following components in parts by weight:
99.9-99.99 parts of fluorocarbon polymer
0.01 to 0.1 part of carbon black particles.
2. The mixed material for the display screen substrate of the intelligent device as claimed in claim 1, wherein the mixed material comprises the following components in parts by weight:
99.95-99.99 parts of fluorocarbon polymer
0.01 part of carbon black particles.
3. The hybrid material for smart device display substrates according to claim 1 or 2, wherein: the fluorocarbon polymer is at least one of powder or granular.
4. The hybrid material for smart device display substrates of claim 3, wherein: the effective component of the fluorocarbon polymer is a polymer formed by copolymerizing tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride.
5. The hybrid material for smart device display substrates of claim 4, wherein: the mass ratio of the tetrafluoroethylene to the hexafluoropropylene to the vinylidene fluoride is 1:3: 6.
6. The hybrid material for smart device display substrates of claim 4, wherein: the melting point of the fluorocarbon polymer is 265-275 ℃.
7. The hybrid material for smart device display substrates according to claim 1 or 2, wherein: the carbon black particles are pigment carbon black.
8. The hybrid material for smart device display substrates of claim 7, wherein: the carbon black particles are low-structure pigment carbon black.
9. The hybrid material for smart device display substrates of claim 7, wherein: the particle diameter of the carbon black particles is 50-150 nm.
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Application publication date: 20201208 |