CN117362829A - High-light-transmittance heat-conduction polypropylene composite material and preparation method thereof - Google Patents
High-light-transmittance heat-conduction polypropylene composite material and preparation method thereof Download PDFInfo
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 63
- -1 polypropylene Polymers 0.000 title claims abstract description 63
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 63
- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 238000002834 transmittance Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims abstract description 41
- 229920001971 elastomer Polymers 0.000 claims abstract description 36
- 239000000806 elastomer Substances 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 36
- 150000004767 nitrides Chemical class 0.000 claims abstract description 32
- 239000002667 nucleating agent Substances 0.000 claims abstract description 17
- 239000000314 lubricant Substances 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 238000009830 intercalation Methods 0.000 claims abstract description 8
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- 239000000463 material Substances 0.000 claims description 31
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 8
- 229910052582 BN Inorganic materials 0.000 claims description 7
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
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- 238000006243 chemical reaction Methods 0.000 claims description 3
- VWGKEVWFBOUAND-UHFFFAOYSA-N 4,4'-thiodiphenol Chemical compound C1=CC(O)=CC=C1SC1=CC=C(O)C=C1 VWGKEVWFBOUAND-UHFFFAOYSA-N 0.000 claims description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 2
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims description 2
- 239000002738 chelating agent Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 claims description 2
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- 229930195729 fatty acid Natural products 0.000 claims description 2
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- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 2
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- 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 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 4
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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
- C08L23/12—Polypropene
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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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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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
- C08K3/28—Nitrogen-containing compounds
- C08K2003/282—Binary compounds of nitrogen with aluminium
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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
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
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Abstract
The invention provides a high-light-transmittance heat-conduction polypropylene composite material and a preparation method thereof, and relates to the technical field of high polymer materials. The invention provides a high-light-transmittance heat-conduction polypropylene composite material which comprises the following raw materials in parts by weight: 90-95 parts of polypropylene resin, 0.3-0.5 part of antioxidant, 0.3-0.5 part of lubricant, 0.3-0.5 part of nucleating agent and 5-10 parts of SEBS elastomer graft intercalation metal nitride. According to the invention, the SEBS elastomer graft is utilized to functionalize the metal nitride, so that the compatibility of the metal nitride and the polymer is improved, the good dispersion state and the effective contact between the heat conducting fillers are beneficial to the formation of a heat conducting channel, and the heat conducting performance of the composite material is improved. According to the invention, the amorphous area in the polypropylene is increased by adding the SEBS, the scattering of light is reduced, the crystal size is also obviously reduced, the refractive index of the ethylene-butene copolymer of the SEBS middle elastic block is similar to that of the polypropylene, the crystallization temperature and the crystallization rate of the composite material are obviously reduced, and the light transmittance of the composite material is improved.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a high-light-transmittance heat-conduction polypropylene composite material and a preparation method thereof.
Background
In recent years, new energy automobiles are used as the best carriers for the 'intelligent, sharing, electric and networking' new and four-purpose, the development of hot flashes is coming, and the demands of consumers for purchasing the automobiles are also increased from the original transportation tools to comfortable intelligent mobile spaces. Automotive interiors are the most direct object of user experience, and are the key points of being created by the main machine factory worker, and comprise materials, colors, lamplight, comfortableness, intellectualization and the like. Wherein, the application of various intelligent materials, intelligent surface technology, atmosphere lamps and the like can not be distinguished in the intelligent interior decoration experience.
At present, transparent PC materials are generally adopted as interior atmosphere lamp decorating plate materials, but the interior atmosphere lamp decorating plate materials have the defects of high brittleness, fragile impact and the like, and in order to avoid the problems, polypropylene materials are outstanding among a plurality of materials due to the advantages of high transparency, excellent toughness, low cost and the like. However, polypropylene materials are susceptible to thermal deformation when used as interior atmosphere lamp trim materials for a long time, so that the application of polypropylene materials is limited. Therefore, it is needed to improve the thermal conductivity of polypropylene composite material to form a heat conduction path and improve the thermal deformation problem of the material. Although the metal nitride is singly used in the prior art, the heat conductivity coefficient of the material can be improved, the defects of large addition amount, poor compatibility with a base material and influence on the light transmittance of the material exist, and the influence on the mechanical property of the polypropylene composite material is larger. Therefore, how to prepare the high-light-transmission heat-conduction polypropylene composite material by combining the metal nitride and the polypropylene material has great significance.
Disclosure of Invention
Based on the technical problems in the background technology, the invention provides a high-light-transmittance heat-conduction polypropylene composite material and a preparation method thereof.
The invention provides a high-light-transmittance heat-conduction polypropylene composite material which comprises the following raw materials in parts by weight: 90-95 parts of polypropylene resin, 0.3-0.5 part of antioxidant, 0.3-0.5 part of lubricant, 0.3-0.5 part of nucleating agent and 5-10 parts of SEBS elastomer graft intercalation metal nitride.
Preferably, the polypropylene resin is selected from one or more of random copolymer polypropylene and homo-copolymer polypropylene.
Preferably, the antioxidant is selected from one or more of monophenol hindered phenol antioxidants, metal chelating agents and thiobisphenol antioxidants.
Preferably, the lubricant is one or more selected from fatty acid amide lubricants and metal soap lubricants.
Preferably, the nucleating agent is selected from one or more of acetal nucleating agents, phosphate nucleating agents and rosin nucleating agents.
Preferably, the preparation method of the SEBS elastomer graft intercalation metal nitride comprises the following steps:
(1) Dissolving SEBS elastomer graft in xylene solution, uniformly mixing, transferring to a hydrothermal kettle for reaction, and cooling to room temperature to obtain mixed solution;
(2) Adding the metal nitride into the mixed solution in the step (1), carrying out ultrasonic treatment for 10-15h, centrifuging, washing to be neutral, and carrying out vacuum drying to obtain the SEBS elastomer graft intercalated metal nitride.
More preferably, the reaction temperature in the step (1) is 70-90 ℃ and the reaction time is 30-50min.
More preferably, the mass ratio of the metal nitride to the SEBS elastomer graft to the xylene solution is (5-8): (9-10): 100.
more preferably, the metal nitride is selected from one or more of aluminum nitride and boron nitride.
More preferably, the SEBS elastomer graft is selected from one or more of maleic anhydride grafted SEBS elastomer and dibutyl maleate grafted SEBS elastomer.
The invention also provides a preparation method of the high-light-transmittance heat-conduction polypropylene composite material, which comprises the following steps:
s1, uniformly mixing polypropylene resin, a nucleating agent, an antioxidant and a lubricant to obtain a mixed material;
s2, melting, extruding and drying the mixed material obtained by the SEBS elastomer graft intercalation metal nitride and the S1 to obtain the high-light-transmittance heat-conducting polypropylene composite material.
Preferably, in S2, the melting temperature is 190-220 ℃.
The invention has the beneficial effects that:
(1) According to the invention, the SEBS elastomer graft is utilized to functionalize the metal nitride, so that the compatibility of the metal nitride and the polymer is improved, the powder is well combined with the polypropylene matrix, and the impact and tensile properties have small influence; the surface of the metal nitride powder is provided with-0H, -NH 2 The interval between metal nitride layers is increased under ultrasonic stripping, active groups on the surface of the metal nitride are chemically combined with SEBS elastomer grafts, so that short-chain SEBS is inserted between metal nitride sheets, the interface effect of the metal nitride and a polymer matrix is increased, and therefore, the formation of a heat conduction path is facilitated due to the good dispersion state and the mutual contact between the heat conduction fillers, and the heat conduction performance of the composite material is improved.
(2) According to the invention, the amorphous area in the polypropylene is increased by adding the SEBS, the scattering of light is reduced, the crystal size is also obviously reduced, the refractive index of the ethylene-butene copolymer of the SEBS middle elastic block is similar to that of the polypropylene, the crystallization temperature and the crystallization rate of the composite material are obviously reduced, and the light transmittance of the composite material is improved.
Detailed Description
The technical scheme of the invention is described in detail through specific embodiments.
In the following examples and comparative examples, specific information on raw materials used is as follows:
random copolymerized polypropylene resin, brand K4912; the manufacturer: shanghai family;
homo-polypropylene resin with the mark Y26; the manufacturer: middle and safety joint;
maleic anhydride grafted SEBS elastomer, brand 1901; the manufacturer: U.S. koteng;
boron nitride, aluminum nitride; the manufacturer: shanghai Pantian powder materials Co., ltd;
lubricant EBS, brand 130P; the manufacturer: indonesian PT CMS;
nucleating agent NX8000; the manufacturer: mellincoln;
antioxidant 168, antioxidant 1010; the manufacturer: tianjin Li Anlong New Material stock Co.Ltd;
the other materials are common commercial materials unless otherwise specified.
Example 1
The high-light-transmittance heat-conduction polypropylene composite material comprises the following raw materials in parts by weight:
the preparation method of the maleic anhydride grafted SEBS elastomer intercalated aluminum nitride comprises the following steps:
(1) 9g of maleic anhydride grafted SEBS elastomer is dissolved in 100ml of xylene solution, transferred to a hydrothermal kettle for treatment at 80 ℃ for 40min, and cooled to room temperature to obtain a mixed solution;
(2) Adding 5g of aluminum nitride into the mixed solution obtained in the step (1), carrying out ultrasonic treatment for 12 hours, carrying out centrifugal separation, collecting precipitate, washing the precipitate to be neutral by deionized water, and drying the precipitate in a vacuum oven to obtain the maleic anhydride grafted SEBS elastomer intercalated aluminum nitride.
A preparation method of a high-light-transmittance heat-conduction polypropylene composite material comprises the following steps:
s1, adding random copolymer polypropylene resin, a nucleating agent NX8000, an antioxidant 1010, an antioxidant 168 and a lubricant EBS into a 1500r/min high-speed stirrer, and mixing for 5min to obtain a mixed material;
s2, adding the mixed material obtained in the step S1 into a double-screw extruder through a main feeding hopper, adding maleic anhydride grafted SEBS elastomer intercalated aluminum nitride through the side edge of a first section of natural exhaust port, and obtaining a high-light-transmittance heat-conduction polypropylene composite material through melting, extrusion and drying; wherein, the temperature of the double-screw extruder charging barrel is 220 ℃, the screw rotating speed is 500r/min, the main machine rotating speed is 22Hz, and the vacuum degree is-0.08 MPa.
Example 2
The high-light-transmittance heat-conduction polypropylene composite material comprises the following raw materials in parts by weight:
the preparation method of the maleic anhydride grafted SEBS elastomer intercalated boron nitride comprises the following steps:
(1) 9g of maleic anhydride grafted SEBS elastomer is dissolved in 100ml of xylene solution, transferred to a hydrothermal kettle for treatment at 80 ℃ for 40min, and cooled to room temperature to obtain a mixed solution;
(2) Adding 5g of boron nitride into the mixed solution obtained in the step (1), carrying out ultrasonic treatment for 12 hours, carrying out centrifugal separation, collecting precipitate, washing the precipitate to be neutral by deionized water, and drying the precipitate in a vacuum oven to obtain the maleic anhydride grafted SEBS elastomer intercalated boron nitride.
A preparation method of a high-light-transmittance heat-conduction polypropylene composite material comprises the following steps:
s1, weighing homo-polypropylene resin, a nucleating agent NX8000, an antioxidant 1010, an antioxidant 168 and a lubricant EBS according to a proportion, and adding the mixture into a 1500r/min high-speed stirrer for mixing for 5min to obtain a mixed material;
s2, adding the mixed material obtained in the step S1 into a double-screw extruder through a main feeding hopper, adding maleic anhydride grafted SEBS elastomer intercalated boron nitride through the side edge of a first section of natural exhaust port, and obtaining a high-light-transmittance heat-conduction polypropylene composite material through melting, extrusion and drying; wherein, the temperature of the double-screw extruder charging barrel is 220 ℃, the screw rotating speed is 500r/min, the main machine rotating speed is 22Hz, and the vacuum degree is-0.08 MPa.
Comparative example 1
The difference from example 1 is that the maleic anhydride grafted SEBS elastomer intercalation aluminum nitride is replaced by the same weight part of aluminum nitride, and the other components are proportioned and prepared in the same way as example 1.
Comparative example 2
The polypropylene composite material comprises the following raw materials in parts by weight:
a preparation method of a polypropylene composite material comprises the following steps:
s1, adding random copolymer polypropylene resin, a nucleating agent NX8000, an antioxidant 1010, an antioxidant 168 and a lubricant EBS into a 1500r/min high-speed stirrer, and mixing for 5min to obtain a mixed material;
s2, adding the mixed material obtained in the step S1 into a double-screw extruder through a main feeding hopper, and melting, extruding and drying to obtain a polypropylene composite material; wherein, the temperature of the double-screw extruder charging barrel is 220 ℃, the screw rotating speed is 500r/min, the main machine rotating speed is 22Hz, and the vacuum degree is-0.08 MPa.
The polypropylene composite materials prepared in the above examples 1-2 and comparative examples 1-2 were subjected to performance tests, and the test criteria and test results of tensile strength, flexural modulus, impact strength, light transmittance and thermal conductivity are shown in Table 1.
TABLE 1 Performance test criteria and test results for Polypropylene composite materials in examples 1-2 and comparative examples 1-2
As can be seen from table 1, the tensile strength and the flexural modulus of the polypropylene composite material obtained by adding the maleic anhydride grafted SEBS elastomer intercalated metal nitride in the example 1 are both superior to those of the comparative example 1, and the light transmittance in the examples 1-2 is obviously higher than that of the comparative example 1, which indicates that the toughness and the light transmittance of the polypropylene composite material can be effectively improved by modifying the metal nitride by adding the maleic anhydride grafted SEBS elastomer; the thermal conductivity coefficients of the examples 1-2 are all better than those of the comparative examples 1-2, and the thermal conductivity coefficient of the polypropylene composite material obtained by adding the maleic anhydride grafted SEBS elastomer intercalated metal nitride is obviously improved, so that the thermal conductivity of the material can be improved by adding the metal nitride, and the thermal conductivity of the material is further improved by utilizing the SEBS elastomer graft to functionalize the metal nitride.
In summary, the high-light-transmittance heat-conducting polypropylene composite material provided by the invention can effectively solve the problems that the polypropylene material is easy to deform after long-time heating and the light transmittance of the material is affected by adding metal nitride, and the prepared polypropylene composite material has high light transmittance and excellent heat-conducting effect.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The high-light-transmittance heat-conducting polypropylene composite material is characterized by comprising the following raw materials in parts by weight: 90-95 parts of polypropylene resin, 0.3-0.5 part of antioxidant, 0.3-0.5 part of lubricant, 0.3-0.5 part of nucleating agent and 5-10 parts of SEBS elastomer graft intercalation metal nitride.
2. The high light transmission and heat conduction polypropylene composite material as claimed in claim 1, wherein the preparation method of the SEBS elastomer graft intercalation metal nitride comprises the following steps:
(1) Dissolving SEBS elastomer graft in xylene solution, uniformly mixing, transferring to a hydrothermal kettle for reaction, and cooling to room temperature to obtain mixed solution;
(2) Adding the metal nitride into the mixed solution in the step (1), carrying out ultrasonic treatment for 10-15h, centrifuging, washing to be neutral, and carrying out vacuum drying to obtain the SEBS elastomer graft intercalated metal nitride.
3. The high-light-transmittance and heat-conduction polypropylene composite material according to claim 2, wherein the mass ratio of the metal nitride to the SEBS elastomer graft to the xylene solution is (5-8): (9-10): 100.
4. the high light transmission and heat conduction polypropylene composite material according to claim 2, wherein the metal nitride is one or more selected from aluminum nitride and boron nitride.
5. The high light transmission and heat conduction polypropylene composite material according to claim 2, wherein the SEBS elastomer graft is one or more selected from maleic anhydride grafted SEBS elastomer and dibutyl maleate grafted SEBS elastomer.
6. The high light transmission and heat conduction polypropylene composite material according to claim 1, wherein the polypropylene resin is one or more selected from random copolymer polypropylene and homo-copolymer polypropylene.
7. The high light transmission and heat conduction polypropylene composite material according to claim 1, wherein the antioxidant is one or more selected from the group consisting of monophenol hindered phenolic antioxidants, metal chelators and thiobisphenol antioxidants.
8. The high light transmission and heat conduction polypropylene composite material according to claim 1, wherein the lubricant is one or more selected from the group consisting of fatty acid amide lubricants and metal soap lubricants.
9. The high light transmission and heat conduction polypropylene composite material according to claim 1, wherein the nucleating agent is one or more selected from the group consisting of acetal nucleating agents, phosphate nucleating agents and rosin nucleating agents.
10. The method for preparing the high-light-transmittance and heat-conduction polypropylene composite material as claimed in any one of claims 1 to 9, comprising the following steps:
s1, uniformly mixing polypropylene resin, a nucleating agent, an antioxidant and a lubricant to obtain a mixed material;
s2, melting, extruding and drying the mixed material obtained by the SEBS elastomer graft intercalation metal nitride and the S1 to obtain the high-light-transmittance heat-conducting polypropylene composite material.
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| CN118027735A (en) * | 2024-03-18 | 2024-05-14 | 广东炎墨方案科技有限公司 | Anti-cracking solder resist ink and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118027735A (en) * | 2024-03-18 | 2024-05-14 | 广东炎墨方案科技有限公司 | Anti-cracking solder resist ink and preparation method thereof |
| CN118027735B (en) * | 2024-03-18 | 2024-08-30 | 广东炎墨方案科技有限公司 | Anti-cracking solder resist ink and preparation method thereof |
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