CN112778602A - Shading infrared-transmitting polyethylene composite material and preparation method and application thereof - Google Patents
Shading infrared-transmitting polyethylene composite material and preparation method and application thereof Download PDFInfo
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- CN112778602A CN112778602A CN202011601630.6A CN202011601630A CN112778602A CN 112778602 A CN112778602 A CN 112778602A CN 202011601630 A CN202011601630 A CN 202011601630A CN 112778602 A CN112778602 A CN 112778602A
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- -1 polyethylene Polymers 0.000 title claims abstract description 40
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000012860 organic pigment Substances 0.000 claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 14
- 239000001257 hydrogen Substances 0.000 claims abstract description 13
- 125000000468 ketone group Chemical group 0.000 claims abstract description 13
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 239000000654 additive Substances 0.000 claims abstract description 7
- 125000001041 indolyl group Chemical group 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- 239000000314 lubricant Substances 0.000 claims description 11
- 229920001903 high density polyethylene Polymers 0.000 claims description 10
- 239000004700 high-density polyethylene Substances 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 239000000049 pigment Substances 0.000 claims description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 229920001179 medium density polyethylene Polymers 0.000 claims description 4
- 239000004701 medium-density polyethylene Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 4
- FYNROBRQIVCIQF-UHFFFAOYSA-N pyrrolo[3,2-b]pyrrole-5,6-dione Chemical compound C1=CN=C2C(=O)C(=O)N=C21 FYNROBRQIVCIQF-UHFFFAOYSA-N 0.000 claims description 3
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 2
- 150000004056 anthraquinones Chemical class 0.000 claims description 2
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- FFNBTJIPLWGKAM-UHFFFAOYSA-N 1-phenoxyanthracene Chemical compound C=1C=CC2=CC3=CC=CC=C3C=C2C=1OC1=CC=CC=C1 FFNBTJIPLWGKAM-UHFFFAOYSA-N 0.000 claims 1
- RJGDLRCDCYRQOQ-UHFFFAOYSA-N anthrone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3CC2=C1 RJGDLRCDCYRQOQ-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 19
- 238000002834 transmittance Methods 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 2
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- MLQHWFQXTIKKAM-UHFFFAOYSA-N 1-phenoxybenzo[a]anthracene Chemical class C=1C=CC2=CC=C3C=C4C=CC=CC4=CC3=C2C=1OC1=CC=CC=C1 MLQHWFQXTIKKAM-UHFFFAOYSA-N 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 150000008425 anthrones Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/0091—Complexes with metal-heteroatom-bonds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a shading infrared-transmitting polyethylene composite material and a preparation method and application thereof. The shading infrared-transmitting polyethylene composite material comprises the following components in parts by weight: 98-99 parts of polyethylene resin; 0.2-0.8 part of organic pigment; 0-2 parts of an additive; wherein, the molecule of the organic pigment contains one or a combination of several of ketone group, nitrogen hydrogen bond or indole unit. According to the light-shielding infrared-transmitting polyethylene composite material, the organic pigment containing a ketone group, a nitrogen-hydrogen bond or an indole unit in a molecule is selected as the light-shielding agent, so that the stretching vibration of the ketone group (C ═ O) and the stretching vibration of the nitrogen-hydrogen bond (N-H) in the molecular structure are both outside the wavelength range of 8-12 microns, and the influence on the transmittance of infrared light in the material is small. The infrared-transmitting performance of the composite material is very excellent while the composite material achieves a dark color material.
Description
Technical Field
The invention relates to the field of high polymer materials, in particular to a shading and infrared transmitting polyethylene composite material and a preparation method and application thereof.
Background
In the 5G era, intelligent homes enter a fast lane which is developed at a high speed. The infrared sensor is very suitable for the field of sensors of smart homes due to the fact that the infrared sensor can detect human activities.
As an excellent infrared transmitting material, the plastic is widely applied to the fields of household appliance shells, sensor lenses and the like. The wavelength range of human body thermal radiation infrared just falls into the 'fingerprint region' in the infrared absorption of people, and the infrared spectrum fingerprint region (1300-400 cm)-17.69-25 μm) and can be used for distinguishing the slight difference on the structures of different compounds, just like the fingerprints of people, so the fingerprint region is called. The infrared absorption spectrum of the fingerprint area is complex, the vibration types of the area are complex and overlapped, the characteristic is poor, but the infrared absorption spectrum is highly sensitive to the change of the molecular structure, and only a small change on the molecular structure can cause the obvious change of the spectrum. Based on this, most organic substances containing C, H, O element cannot avoid the existence of absorption peaks in the fingerprint region, and polyethylene has a relatively simple molecular structure and only contains methylene on the main chain and tertiary carbon atoms on the branched chain, so that the absorption in the fingerprint region in an infrared absorption spectrum is weak, and the polyethylene becomes a mainstream middle-infrared transparent base material.
For the preparation of infrared transmitting polyethylene material, it is usually prepared by directly using polyethylene resin or mixing infrared transmitting modifier, for example, chinese patent CN103627066A adds infrared transmitting modifier with infrared transmitting agent as core and epoxy resin and curing agent as shell into polyethylene to obtain a far infrared transmitting material, and for the light-shielding material, it usually uses substance with strong light-absorbing ability (such as carbon black) or substance with strong light-reflecting ability (such as barium sulfate, titanium dioxide, etc.), but the addition of these substances can greatly affect the infrared transmitting ability.
Therefore, it is required to develop a polyethylene material having both light-shielding property and infrared-transmitting property.
Disclosure of Invention
The invention aims to overcome the defects and contradictions that the light-shading performance and the infrared-transmitting performance cannot be solved in the prior art, and provides a light-shading and infrared-transmitting polyethylene composite material. According to the light-shielding infrared-transmitting polyethylene composite material, the organic pigment containing a ketone group, a nitrogen-hydrogen bond or an indole unit in a molecule is selected as the light-shielding agent, so that the stretching vibration of the ketone group (C ═ O) and the stretching vibration of the nitrogen-hydrogen bond (N-H) in the molecular structure are both outside the wavelength range of 8-12 microns, and the influence on the transmittance of infrared light in the material is small. The infrared-transmitting performance of the composite material is very excellent while the composite material achieves a dark color material.
The invention also aims to provide a preparation method of the light-shielding infrared-transmitting polyethylene composite material.
The invention also aims to provide application of the light-shielding infrared-transmitting polyethylene composite material in preparation of a household appliance shell or a sensor lens.
In order to achieve the purpose, the invention adopts the following technical scheme:
a shading infrared-transmitting polyethylene composite material comprises the following components in parts by weight:
98-99 parts of polyethylene resin;
0.2-0.8 part of organic pigment;
0-2 parts of an additive;
wherein, the molecule of the organic pigment contains one or a combination of several of ketone group, nitrogen hydrogen bond or indole unit.
The light-shielding polyethylene is usually prepared by adding a light-shielding material, but the commonly used light-shielding material has a great influence on the infrared-transmitting property of the infrared-transmitting polyethylene.
The inventors of the present invention found through a large number of experimental studies that an organic pigment containing a ketone group, a nitrogen-hydrogen bond or an indole unit has a small influence on the infrared transmittance and at the same time can act as a light-shielding effect. This is probably because the molecular structure has a keto group (C ═ O) stretching vibration and a nitrogen-hydrogen bond (N-H) stretching vibration both outside the wavelength range of 8 to 12 μm, and indole, which is called benzopyrrole, has similar keto group (C ═ O) and nitrogen-hydrogen bond (N-H), and therefore has little influence on the infrared transmittance of the material.
Preferably, the organic pigment is one or a combination of several of phthalocyanine pigments, pyrrolopyrrole diketones, anthraquinone pigments, anthrones, phenoxybenzanthracenes or azo pigments. The organic pigment of pyrrolopyrrole-Dione (DPP) has a molecular structure in which both the stretching vibration of keto group (C ═ O) and the stretching vibration of nitrogen-hydrogen bond (N-H) are outside the wavelength range of 8-12 μm, and indole is called benzopyrrole, has a structure similar to DPP, and has little influence on the transmittance of infrared light.
More preferably, the organic pigment is one or a combination of phthalocyanine and pyrrolopyrrole diketone.
Preferably, the polyethylene resin is one or a combination of more of High Density Polyethylene (HDPE), Medium Density Polyethylene (MDPE), Low Density Polyethylene (LDPE) or Linear Low Density Polyethylene (LLDPE).
Further preferably, the polyethylene resin is a high density polyethylene HDPE.
Preferably, the additive is one or a combination of several of an antioxidant or a lubricant.
Preferably, the antioxidant is one or a combination of more of hindered phenol antioxidants or phosphite antioxidants.
Preferably, the lubricant is one or a combination of several of a metal soap lubricant, a stearic acid complex ester lubricant or an amide lubricant.
The preparation method of the shading infrared-transmitting polyethylene composite material comprises the following steps: and uniformly mixing the polyethylene resin, the organic pigment and the additive, and then extruding and granulating to obtain the shading infrared-transmitting polyethylene composite material.
Preferably, the extrusion may be performed using a twin screw extruder.
Preferably, the parameters of the twin-screw extruder are: the temperatures from the feeding section to the die head are respectively 160 ℃, 170 ℃, 190 ℃, 195 ℃, 200 ℃, 200 ℃, 205 ℃, 205 ℃, 200 ℃ and 190 ℃; the rotating speed of the screw is 400 r/min; the length-diameter ratio of the screw is 40: 1; the screw diameter was 65 mm.
The application of the light-shielding infrared-transmitting polyethylene composite material in the preparation of an electric shell or a sensor lens is also within the protection scope of the invention.
Compared with the prior art, the invention has the following beneficial effects:
according to the light-shielding infrared-transmitting polyethylene composite material, the organic pigment containing a ketone group, a nitrogen-hydrogen bond or an indole unit in a molecule is selected as the light-shielding agent, so that the stretching vibration of the ketone group (C ═ O) and the stretching vibration of the nitrogen-hydrogen bond (N-H) in the molecular structure are both outside the wavelength range of 8-12 microns, and the influence on the transmittance of infrared light in the material is small. The infrared-transmitting performance of the composite material is very excellent while the composite material achieves a dark color material.
Detailed Description
The present invention is further illustrated by the following specific examples, which are not intended to limit the invention in any way. Reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated. Unless otherwise indicated, reagents and materials used in the present invention are commercially available.
The embodiment of the invention adopts the following raw materials:
high density polyethylene: HDPE 5000S, available from landlocked;
DPP pigment: k3840SQ, available from BASF (China) Inc.;
phthalocyanine blue: BF431PS, available from santai chemical;
phthalocyanine green: MAZCOL GREEN 706K, purchased from ding tai chemical;
carbon black: 1013F, purchased from ding tai chemical industry;
titanium dioxide: r-105, available from Aidic;
antioxidant: antioxidant 168, available from basf (china) ltd;
lubricant: calcium stearate, purchased from huamingtai chemical industry.
Examples 1 to 6 and comparative examples 1 to 2
According to the formulation in table 1, the polyethylene composites were prepared as follows:
adding polyethylene resin, organic pigment and additive into a high-speed mixer, and blending for 10-15 min at the rotating speed of 500 r/min; then adding the mixture into a double-screw extruder to extrude and granulate, thus obtaining the polyethylene composite material. The temperatures of the double-screw extruder from the feeding section to the die head are respectively 160 ℃, 170 ℃, 190 ℃, 195 ℃, 200 ℃, 200 ℃, 205 ℃, 205 ℃, 200 ℃ and 190 ℃; the rotating speed of the screw is 400 r/min; the length-diameter ratio of the screw is 40: 1; the screw diameter was 65 mm.
Table 1 shows the contents (parts by weight) of the respective components in the light-shielding infrared-transmitting polyethylene composite materials in the examples
The performance of the light-shielding polyethylene composite materials prepared in the above examples and comparative examples was tested, and the specific test items and test methods were as follows:
1. light transmittance: according to the determination of the light transmittance and the haze of GB/T2410-.
2. Infrared light transmittance:
the method comprises the following steps: the integral area of Fourier infrared within a certain wave number range is used as an index for measuring the infrared transmission performance of the material, and the scheme is only suitable for transverse qualitative comparison at present;
the second method comprises the following steps: the infrared transmitting performance of the material is evaluated by adopting the limit sensing distance of the infrared sensor, and the quality of the infrared transmitting performance of the material can be visually embodied.
The test results are shown in table 2.
TABLE 2 Performance test results of the polypropylene composites prepared in the examples and comparative examples
The data results in tables 1 and 2 show that the light-shielding performance of the polyethylene composites of examples 1 to 6 is basically the same, and the examples have larger sensing distance and larger integral area of fixed wavelength range than the comparative performance, so that the polyethylene composites of the invention have excellent infrared-transmitting performance while shielding light.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The light-shading infrared-transmitting polyethylene composite material is characterized by comprising the following components in parts by weight:
98-99 parts of polyethylene resin;
0.2-0.8 part of organic pigment;
0-2 parts of an additive;
wherein, the molecule of the organic pigment contains one or a combination of several of ketone group, nitrogen hydrogen bond or indole unit.
2. The light-shielding infrared-transmitting polyethylene composite material as claimed in claim 1, wherein the organic pigment is one or more of phthalocyanine, pyrrolopyrrole dione, anthraquinone, anthrone, phenoxyanthracene or azo pigments.
3. The light-shielding infrared-transmitting polyethylene composite material as claimed in claim 1, wherein the organic pigment is one or more of phthalocyanines and pyrrolopyrrole diketones.
4. The light-shielding infrared-transmitting polyethylene composite material as claimed in claim 1, wherein the polyethylene resin is one or more of High Density Polyethylene (HDPE), Medium Density Polyethylene (MDPE), Low Density Polyethylene (LDPE) and Linear Low Density Polyethylene (LLDPE).
5. The light-blocking infrared transmitting polyethylene composite material of claim 1, wherein the polyethylene resin is a high density polyethylene HDPE.
6. The light-shielding infrared-transmitting polyethylene composite material as claimed in claim 1, wherein the additive is one or more of an antioxidant and a lubricant.
7. The light-shielding infrared-transmitting polyethylene composite material as claimed in claim 6, wherein the antioxidant is one or more of hindered phenol antioxidant or phosphite antioxidant.
8. The light-shielding infrared-transmitting polyethylene composite material as claimed in claim 6, wherein the lubricant is one or more of a metal soap lubricant, a stearic acid complex ester lubricant or an amide lubricant.
9. The preparation method of the shading and infrared transmitting polyethylene composite material as claimed in any one of claims 1 to 8, which is characterized by comprising the following steps:
and uniformly mixing the polyethylene resin, the organic pigment and the additive, and then extruding and granulating to obtain the shading infrared-transmitting polyethylene composite material.
10. Use of the light-shielding infrared-transmitting polyethylene composite material as defined in any one of claims 1 to 8 in the preparation of a housing for a household appliance or a lens for a sensor.
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| CN202011601630.6A CN112778602A (en) | 2020-12-29 | 2020-12-29 | Shading infrared-transmitting polyethylene composite material and preparation method and application thereof |
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|---|---|---|---|---|
| US4107133A (en) * | 1974-01-14 | 1978-08-15 | Dainippon Ink & Chemicals, Inc. | Colored polyethylene molding compositions |
| US20170298239A1 (en) * | 2014-09-30 | 2017-10-19 | Dai Nippon Printing Co., Ltd. | Infrared-light-transmitting ink of dark color, and infrared-light-reflecting sheet obtained using same |
| CN110791116A (en) * | 2018-08-01 | 2020-02-14 | 浙江浩川科技有限公司 | DPP organic pigment containing carbon-carbon double bond, and synthetic method and application thereof |
| CN110938245A (en) * | 2019-11-11 | 2020-03-31 | 天津金发新材料有限公司 | Infrared-transmitting flame-retardant polyethylene modified material and preparation method thereof |
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2020
- 2020-12-29 CN CN202011601630.6A patent/CN112778602A/en active Pending
Patent Citations (4)
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