CN112143112A - High-performance lampshade material and preparation method thereof - Google Patents
High-performance lampshade material and preparation method thereof Download PDFInfo
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- CN112143112A CN112143112A CN201910577636.5A CN201910577636A CN112143112A CN 112143112 A CN112143112 A CN 112143112A CN 201910577636 A CN201910577636 A CN 201910577636A CN 112143112 A CN112143112 A CN 112143112A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
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Abstract
The invention discloses a high-performance lampshade material and a preparation method thereof, wherein the high-performance lampshade material is prepared from the following components in parts by mass: 65-75 parts of random copolymerization polypropylene material, 20-30 parts of COC plastic, 3-5 parts of organic silicon spherical micro-beads, 0.5-3.5 parts of LED fluorescent powder, 0.5 part of antioxidant and 0.2 part of dispersant. The random copolymerization polypropylene and the cyclic polyolefin material which have excellent light transmission effect and high heat resistance are selected, so that the dimensional stability of the material at high temperature is ensured; the organosilicon spherical micro-beads with high transparency and good heat conductivity are used as filling materials, so that the toughness and the heat conductivity of the material are improved, and the influence of the filling materials on the overall transparency of the material is avoided to the greatest extent; meanwhile, the LED fluorescent powder added into the material in a blending mode has an attractive effect on the whole light, and compared with the LED fluorescent powder which is sprayed only, the LED fluorescent powder added into the material in a blending mode can obviously have a more uniform dispersion effect.
Description
Technical Field
The invention relates to the field of modified plastics, in particular to a high-performance lampshade material and a preparation method thereof.
Background
The lampshade material is a material with excellent optical transmittance, and is mainly applied to the industries of illumination, optical instruments and the like. The materials used by the traditional illumination and optical instrument products are common glass, but with the continuous development of the field of high polymer materials and the continuous progress of science and technology, higher requirements are put forward on the quality and the forming convenience of transparent materials. At present, transparent polymer materials are continuously replacing glass and become mainstream transparent materials.
With the continuous improvement of LED lighting technology, LED lighting has gradually appeared in various aspects of people's life at present, but because the luminous intensity of a unit area of an LED light source is too high, LED lighting generally needs a light-transmitting cover to convert LED light into a soft and uniform surface light source. The existing high polymer lampshade materials are basically made of high-polarity amorphous materials such as PC, PMMA, PS and the like through special surface frosting treatment, have strong light transmission, but have low comprehensive performance, such as low mechanical performance, low corrosion resistance, poor weather resistance, complex cutting and frosting process and high raw material cost.
Disclosure of Invention
The invention aims to provide a high-performance lampshade material and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-performance lampshade material is prepared from the following components in parts by mass:
as a further scheme of the invention, the melt index of the random copolymerization polypropylene material under the condition of 230 ℃/2.16kg is 7-11g/10min, the light transmittance is 82%, and the heat distortion temperature under the condition of 0.45Mpa is more than or equal to 110 ℃.
As a further scheme of the invention: the melting index of the COC plastic at 230 ℃/2.16kg is 6-9g/10min, and the haze is less than or equal to 1%.
As a further aspect of the present invention, the silicone spherical microbead has a median particle size of 2 μm.
As a further scheme of the invention, the LED fluorescent powder is inorganic LED fluorescent powder.
In a further embodiment of the present invention, the antioxidant is at least three of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) N-octadecyl propionate (antioxidant 1076), tris- (2, 4-di-tert-butylphenyl) phosphite (antioxidant 168), N-phenyl-N-cyclohexyl-p-phenylenediamine (antioxidant 4010), and dioctadecyl thiodipropionate (antioxidant DSTDP).
As a further aspect of the present invention, the antioxidant is any three of N-octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, tris- (2, 4-di-tert-butylphenyl) phosphite, N-phenyl-N-cyclohexyl-p-phenylenediamine, and dioctadecyl thiodipropionate in a mass ratio of 1:1:1, and mixing the components.
As a further aspect of the invention, the dispersant is an organic dispersant.
As a further embodiment of the present invention, the dispersant is at least one of sodium dodecyl sulfate, methylpentanol, guar gum or a dispersant of the stearate amide type.
The invention also aims to provide a preparation method of the high-performance lampshade material, which comprises the following steps: adding 65-75 parts of random copolymerization polypropylene material, 20-30 parts of COC plastic, 3-5 parts of organic silicon spherical micro-beads, 0.5-3.5 parts of LED fluorescent powder, 0.5 part of antioxidant and 0.2 part of dispersant into a high-speed mixer for mixing for 5-15 min; then adding the uniformly mixed materials into a double-screw extruder, mixing, extruding, cooling and granulating to obtain high-performance lampshade material granules; wherein the extrusion temperature of each extrusion zone in the twin-screw extruder is respectively 160-.
Compared with the prior art, the invention has the beneficial effects that:
(1) the high-performance lampshade material provided by the invention selects the random copolymerization polypropylene and the cyclic polyolefin material which have excellent light transmission effect and higher heat resistance, and ensures the dimensional stability of the material at higher temperature.
(2) According to the invention, the organosilicon spherical micro-beads with high transparency and good heat conductivity are used as filling materials, so that the toughness and heat conductivity of the material are improved, and the influence of the filling materials on the overall transparency of the material is avoided to the greatest extent.
(3) The LED fluorescent powder blended and added into the material has an attractive effect on the whole light, and compared with the LED fluorescent powder which is sprayed only, the blended form can obviously have a more uniform dispersion effect.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood 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.
The random copolymerization polypropylene material is PP-B4808 of Chinese petrochemical industry.
The COC plastic has a melt index of 6-9g/10min under the conditions of 230 ℃/2.16kg and haze of less than or equal to 1%.
The median particle size of the organosilicon spherical micro-bead is 2 μm, and the manufacturer is Suzhou nano-micro technology.
The LED fluorescent powder is silicate series orange powder produced by Hongkong Shijie technology.
The antioxidant is at least three of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) N-octadecyl propionate (antioxidant 1076), tris- (2, 4-di-tert-butylphenyl) phosphite (antioxidant 168), N-phenyl-N-cyclohexyl p-phenylenediamine (antioxidant 4010) and dioctadecyl thiodipropionate (antioxidant DSTDP).
The antioxidant is any three of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) N-octadecyl propionate, tri- (2, 4-di-tert-butylphenyl) phosphite, N-phenyl-N-cyclohexyl-p-phenylenediamine and dioctadecyl thiodipropionate in a mass ratio of 1:1:1, and mixing the components.
The dispersant is an organic dispersant, and further is at least one of sodium dodecyl sulfate, methyl amyl alcohol, guar gum or a dispersant of the amide type of stearic ester.
Example 1
Adding 65 parts of random copolymer polypropylene material, 30 parts of COC plastic, 5 parts of organic silicon spherical micro-beads, 0.5 part of LED fluorescent powder, 0.5 part of antioxidant (a mixture of antioxidant 1076, antioxidant DSTDP and antioxidant 4010 in a mass ratio of 1:1: 1) and 0.2 part of sodium dodecyl sulfate into a high-speed mixer to mix for 15 min; then adding the uniformly mixed materials into a double-screw extruder, mixing, extruding, cooling and granulating to obtain high-performance lampshade material granules; wherein the extrusion temperature of each extrusion zone in the double-screw extruder is 160 ℃, 175 ℃, 185 ℃, 190 ℃ and 200 ℃. The product properties are shown in Table 1.
Example 2
70 parts of random copolymerization polypropylene material, 25 parts of COC plastic, 4 parts of organic silicon spherical micro-beads, 2 parts of LED fluorescent powder, 0.5 part of antioxidant (a mixture of antioxidant 1076, antioxidant DSTDP and antioxidant 168 with a mass ratio of 1:1: 1) and 0.2 part of Guerban are added into a high-speed mixer to be mixed for 5-15 min; then adding the uniformly mixed materials into a double-screw extruder, mixing, extruding, cooling and granulating to obtain high-performance lampshade material granules; wherein the extrusion temperatures of the extrusion zones in the twin-screw extruder are 165 ℃, 170 ℃, 180 ℃, 190 ℃, 195 ℃ and 205 ℃, respectively. The product properties are shown in Table 1.
Example 3
Adding 75 parts of random copolymer polypropylene material, 20 parts of COC plastic, 3 parts of organic silicon spherical micro-beads, 3.5 parts of LED fluorescent powder, 0.5 part of antioxidant (a mixture of antioxidant 1076, antioxidant 168 and antioxidant 4010 in a mass ratio of 1:1: 1) and 0.2 part of stearamide into a high-speed mixer to mix for 5-15 min; then adding the uniformly mixed materials into a double-screw extruder, mixing, extruding, cooling and granulating to obtain high-performance lampshade material granules; wherein the extrusion temperatures of the extrusion zones in the twin-screw extruder are 175 ℃, 185 ℃, 195 ℃, 200 ℃, 210 ℃ respectively. The product properties are shown in Table 1.
Table 1 results of testing the properties of the products of examples 1 to 3
Comparative example 1
Adding 95 parts of random copolymerization polypropylene material, 5 parts of organic silicon spherical micro-beads, 2 parts of LED fluorescent powder, 0.5 part of antioxidant (a mixture of antioxidant 1076, antioxidant DSTDP and antioxidant 168 with a mass ratio of 1:1: 1) and 0.2 part of Guerlan into a high-speed mixer for mixing for 15 min; then adding the uniformly mixed materials into a double-screw extruder, mixing, extruding, cooling and granulating to obtain high-performance lampshade material granules; wherein the extrusion temperature of each extrusion zone in the double-screw extruder is 160 ℃, 175 ℃, 185 ℃, 190 ℃ and 200 ℃. The product properties are shown in Table 2.
Comparative example 2
Adding 95 parts of COC plastic, 5 parts of organic silicon spherical micro-beads, 2 parts of LED fluorescent powder, 0.5 part of antioxidant (a mixture of antioxidant 1076, antioxidant DSTDP and antioxidant 168 with the mass ratio of 1:1: 1) and 0.2 part of Guerlan into a high-speed mixer for mixing for 15 min; then adding the uniformly mixed materials into a double-screw extruder, mixing, extruding, cooling and granulating to obtain high-performance lampshade material granules; wherein the extrusion temperature of each extrusion zone in the double-screw extruder is 160 ℃, 175 ℃, 185 ℃, 190 ℃ and 200 ℃. The product properties are shown in Table 2.
Comparative example 3
70 parts of random copolymerization polypropylene material, 30 parts of COC plastic, 2 parts of LED fluorescent powder, 0.5 part of antioxidant (a mixture of antioxidant 1076, antioxidant DSTDP and antioxidant 168 with a mass ratio of 1:1: 1) and 0.2 part of Guel gum are added into a high-speed mixer to be mixed for 15 min; then adding the uniformly mixed materials into a double-screw extruder, mixing, extruding, cooling and granulating to obtain high-performance lampshade material granules; wherein the extrusion temperature of each extrusion zone in the double-screw extruder is 160 ℃, 175 ℃, 185 ℃, 190 ℃ and 200 ℃. The product properties are shown in Table 2.
TABLE 2 results of testing the properties of comparative examples 1 to 3
From the detection results in tables 1 and 2, compared with the comparative example, the material prepared in the example has good mechanical property, high temperature resistance and excellent heat conductivity, the mechanical property is poor and the material cannot be used for a long time when only the random copolymerization polypropylene is used as the base material, while the light transmittance is too high when only the COC material is used as the base material, and the too high light transmittance can cause the light dispersion of the lampshade material and show the defect of too dazzling, and from the comparative example 3, the heat conductivity coefficient of the material can be obviously improved by the organosilicon spherical microspheres.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art. Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A high-performance lampshade material is characterized in that: the adhesive is prepared from the following components in parts by mass:
65-75 parts of random copolymerization polypropylene material,
20-30 parts of COC plastic,
3-5 parts of organic silicon spherical micro-beads,
0.5 to 3.5 portions of LED fluorescent powder,
0.5 part of an antioxidant, namely,
0.2 part of dispersant.
2. The high performance lampshade material of claim 1, characterized in that: the melt index of the random copolymerization polypropylene material under the condition of 230 ℃/2.16kg is 7-11g/10min, the light transmittance is 82%, and the heat distortion temperature under the condition of 0.45Mpa is more than or equal to 110 ℃.
3. The high performance lampshade material of claim 1, characterized in that: the melting index of the COC plastic at 230 ℃/2.16kg is 6-9g/10min, and the haze is less than or equal to 1%.
4. The high performance lampshade material of claim 1, characterized in that: the median particle size of the organosilicon spherical micro-bead is 2 μm.
5. The high performance lampshade material of claim 1, characterized in that: the LED fluorescent powder is inorganic LED fluorescent powder.
6. The high performance lampshade material of claim 1, characterized in that: the antioxidant is at least three of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) N-octadecyl propionate, tri- (2, 4-di-tert-butylphenyl) phosphite, N-phenyl-N-cyclohexyl-p-phenylenediamine and dioctadecyl thiodipropionate.
7. The high performance lampshade material of claim 6, characterized in that: the antioxidant is any three of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) N-octadecyl propionate, tris- (2, 4-di-tert-butylphenyl) phosphite, N-phenyl-N-cyclohexyl-p-phenylenediamine and dioctadecyl thiodipropionate in a mass ratio of 1:1:1, and mixing the components.
8. The high performance lampshade material of claim 1, characterized in that: the dispersant is an organic dispersant.
9. The high performance lampshade material of claim 8, characterized in that: the dispersing agent is at least one of sodium dodecyl sulfate, methyl amyl alcohol, guar gum or stearic acid amide dispersing agent.
10. A method for preparing a high performance lampshade material as claimed in any one of claims 1 to 9, characterized in that: the method comprises the following steps: adding 65-75 parts of random copolymerization polypropylene material, 20-30 parts of COC plastic, 3-5 parts of organic silicon spherical micro-beads, 0.5-3.5 parts of LED fluorescent powder, 0.5 part of antioxidant and 0.2 part of dispersant into a high-speed mixer for mixing for 5-15 min; then adding the uniformly mixed materials into a double-screw extruder, mixing, extruding, cooling and granulating to obtain high-performance lampshade material granules; wherein the extrusion temperature of each extrusion zone in the twin-screw extruder is respectively 160-.
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Cited By (1)
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| CN113502022A (en) * | 2021-07-15 | 2021-10-15 | 滁州杰事杰新材料有限公司 | High-performance polypropylene material for lampshade and preparation method thereof |
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Application publication date: 20201229 |