CN109354868B - Graphene-modified flame-retardant heat-conducting nylon plastic and preparation method thereof - Google Patents
Graphene-modified flame-retardant heat-conducting nylon plastic and preparation method thereof Download PDFInfo
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- CN109354868B CN109354868B CN201811204391.3A CN201811204391A CN109354868B CN 109354868 B CN109354868 B CN 109354868B CN 201811204391 A CN201811204391 A CN 201811204391A CN 109354868 B CN109354868 B CN 109354868B
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- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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Abstract
The invention provides a graphene modified flame-retardant heat-conducting nylon plastic which comprises the following components in parts by mass: 44-72% of high-fluidity nylon 6; 5-10% of negative ion powder; 5-10% of sulfonated graphene; 1-3% of spherical ceramic powder; 3-6% of polyamide elastomer; 10-20% of a flame retardant; 3-5% of a flame-retardant synergist; 1-2% of processing aid. Its preparing process is also disclosed. The graphene modified flame-retardant heat-conducting nylon plastic prepared by the technology has high heat conductivity and flame retardant property, the heat conductivity coefficient reaches above 5W/m, and the flame retardant grade is V-0.
Description
Technical Field
The invention relates to a nylon composite material, in particular to graphene modified flame-retardant heat-conducting nylon plastic and a preparation method thereof, and belongs to the technical field of chemical materials.
Background
In recent years, with the development of industrial production and scientific technology, high-power electronic and electrical products are rapidly developed, and more problems of product efficiency reduction, service life shortening and the like caused by product heating appear. The data show that the reliability of the electronic component is reduced by 10% when the temperature of the electronic component is increased by 2 ℃; the lifetime at 50 ℃ is only 1/6 at 25 ℃.
Nylon 6 is a thermoplastic engineering plastic with excellent performance, has the advantages of excellent mechanical property, better electrical property, wear resistance, oil resistance, solvent resistance and the like, is widely applied to the fields of automobiles, electronic and electric appliances, machinery and the like, and particularly is applied to the field of LED illumination. However, nylon 6 is a thermal insulator, and tends to increase the temperature of the material over a long period of time, which affects the life of the LED lamp. Nylon 6 is currently modified for thermal conductivity with high addition of thermally conductive fillers such as alumina, silicon nitride, etc., but this simultaneously loses other properties of nylon, such as mechanical properties and durability.
Graphene is currently the thinnest (0.335 nm monolayer) and the hardest nanomaterial in the world, it is almost completely transparent, and visible light absorption is only 2.3%. The graphene has good electronic conductivity, and the electron mobility is higher than 15000cm at normal temperature2V.s, and a resistivity of only 10-6Omega cm, which is the material with the lowest resistivity in the world at present. The graphene is formed by closely arranging sp2 hybridized carbon atoms, has a unique two-dimensional periodic honeycomb lattice structure, and is considered as an excellent thermal control material due to the fact that stable carbon six-membered rings existing in structural units of the graphene endow the graphene with excellent thermal performance. The thermal conductivity can be greatly improved by adding the graphene into the nylon, and the high-thermal-conductivity plastic taking the graphene as the filler can meet the requirements of high-density and high-integration assembly development in the thermal management and electronic industry.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the flame-retardant heat-conducting nylon plastic with excellent heat-conducting property, simple processing and forming and excellent flame-retardant property and the preparation method thereof.
The technical scheme of the invention is as follows:
the graphene modified flame-retardant heat-conducting nylon plastic comprises the following components in parts by mass:
44-72% of high-fluidity nylon 6; 5-10% of negative ion powder; 5-10% of sulfonated graphene; 1-3% of spherical ceramic powder; 3-6% of polyamide elastomer; 10-20% of a flame retardant; 3-5% of a flame-retardant synergist; 1-2% of processing aid.
The anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding mass ratio is 1: 2-1: 4.
The sulfonated graphene is 400-3 mu m in size and 1-30 nm in thickness, and the molar ratio of C to S in the sulfonated graphene is 10: 1-5: 1;
wherein the relative viscosity of the high-fluidity nylon is 1.8-4.0 dl/g;
wherein the spherical ceramic powder is one or a combination of aluminum nitride, silicon nitride and tungsten tetraboride, and the particle size of the spherical ceramic powder is 200 nm-500 nm;
wherein the flame retardant is an expanded graphite nanoplatelet with the particle size of 1-5 μm;
wherein, the flame retardant synergist is one or the combination of melamine cyanurate, melamine orthophosphate, dimelamine phosphate, black phosphorus and magnesium trisilicate;
wherein the polyamide elastomer is a block copolymer of PA11 and polyoxytetramethylene glycol;
wherein, the processing aid is one or the combination of an antioxidant, a nucleating agent and a lubricant.
The invention also provides a preparation method of the graphene modified flame-retardant heat-conducting nylon plastic, which comprises the following steps:
1) weighing the raw materials according to the formula;
2) drying the high-flow nylon 6 resin at the temperature of 70-80 ℃ for 1-2 hours, and then uniformly mixing the high-flow nylon 6 resin with other raw materials;
3) and placing the mixed raw materials into a discharge hopper of an extruder, and performing melt extrusion granulation by a double-screw extruder to obtain the graphene modified flame-retardant heat-conducting nylon plastic.
Further, the process parameters of the melting, extruding and granulating of the double-screw extruder are as follows: the temperature of the first zone is 190-; the rotating speed of the main machine is 250-270r/min, and the rotating speed of the feeding is 65-75 r/min.
The invention also provides application of the graphene modified flame-retardant heat-conducting nylon plastic, which is used in the fields of automobiles, electronic appliances and mechanical devices, in particular in the field of LED illumination.
The invention has the beneficial effects that:
1) according to the invention, by compounding the components such as anion powder, sulfonated graphene, spherical ceramic powder and the like, the heat conductivity of nylon 6 is greatly improved, and the heat conductivity coefficient reaches more than 5.0W/m.K. In the invention, the adopted anion powder has higher anion generation amount and far infrared emissivity, the emission capability of the anion powder can be maintained by utilizing the heat emitted by the heat source, and the energy exchange between the heat-conducting nylon and the outside is improved, thereby improving the heat-radiating effect of the heat-conducting nylon; moreover, the anion powder and the sulfonated graphene have obvious synergistic effect on the heat-conducting property, and the heat-conducting property of the material can be obviously improved.
2) According to the invention, by compounding the intumescent graphite nanoplatelets and the flame-retardant synergist, the flame-retardant grade of the material reaches V-0 grade, and the material is a halogen-free flame-retardant material;
Detailed Description
The present invention is further illustrated in detail below with reference to examples. It should be understood that the following examples are only illustrative and illustrative of the technical solutions of the present invention, and should not be taken as limiting the scope of the present invention.
The starting materials in the following examples are, unless otherwise indicated, commercially available products or may be prepared by known methods.
Specifically, the graphene modified flame-retardant heat-conducting nylon plastic comprises the following components in parts by mass:
44-72% of high-fluidity nylon 6; 5-10% of negative ion powder; 5-10% of sulfonated graphene; 1-3% of spherical ceramic powder; 3-6% of polyamide elastomer; 10-20% of a flame retardant; 3-5% of a flame-retardant synergist; 1-2% of processing aid.
The anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding mass ratio is 1: 2-1: 4.
The sulfonated graphene is 400-3 mu m in size and 1-30 nm in thickness, and the molar ratio of C to S in the sulfonated graphene is 10: 1-5: 1;
wherein the relative viscosity of the high-fluidity nylon is 1.8-4.0 dl/g;
wherein the spherical ceramic powder is one or a combination of aluminum nitride, silicon nitride and tungsten tetraboride, and the particle size of the spherical ceramic powder is 200 nm-500 nm;
wherein the flame retardant is an expanded graphite nanoplatelet with the particle size of 1-5 μm;
wherein, the flame retardant synergist is one or the combination of melamine cyanurate, melamine orthophosphate, dimelamine phosphate, black phosphorus and magnesium trisilicate;
wherein the polyamide elastomer is a block copolymer of PA11 and polyoxytetramethylene glycol;
wherein the processing aid is one or the combination of an antioxidant, a nucleating agent and a lubricant;
in the following embodiments, the preparation method of the graphene modified flame-retardant heat-conductive nylon plastic comprises the following steps:
1) weighing the raw materials according to the formula;
2) drying the high-flow nylon 6 resin at the temperature of 70-80 ℃ for 1-2 hours, and then uniformly mixing the high-flow nylon 6 resin with other raw materials;
3) and placing the mixed raw materials into a discharge hopper of an extruder, and performing melt extrusion granulation by a double-screw extruder to obtain the graphene modified flame-retardant heat-conducting nylon plastic.
Further, the process parameters of the melting, extruding and granulating of the double-screw extruder are as follows: the temperature of the first zone is 190-; the rotating speed of the main machine is 250-270r/min, and the rotating speed of the feeding is 65-75r/min
Example 1
The graphene modified flame-retardant heat-conducting nylon plastic comprises the following components in parts by mass:
44% of high-fluidity nylon 6; 10% of anion powder; 10% of sulfonated graphene; 3% of spherical ceramic powder; 6% of polyamide elastomer; 20% of flame retardant; 5% of flame retardant synergist; 2 percent of processing aid.
Wherein the anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding mass ratio is 1: 2; the spherical ceramic powder is aluminum nitride; the flame-retardant synergist is melamine cyanurate, and the processing aid is an antioxidant.
The flame-retardant heat-conducting nylon plastic is prepared according to the method.
Example 2
The graphene modified flame-retardant heat-conducting nylon plastic comprises the following components in parts by mass:
54.5 percent of high-fluidity nylon 6; 8% of negative ion powder; 7% of sulfonated graphene; 2% of spherical ceramic powder; 5% of polyamide elastomer; 18% of flame retardant; 4% of flame retardant synergist; 1.5 percent of processing aid.
Wherein the anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding mass ratio is 1: 3; the spherical ceramic powder is silicon nitride; the flame-retardant synergist is melamine orthophosphate, and the processing aid is an antioxidant and a lubricant.
The flame-retardant heat-conducting nylon plastic is prepared according to the method.
Example 3
The graphene modified flame-retardant heat-conducting nylon plastic comprises the following components in parts by mass:
72% of high-fluidity nylon 6; 5% of anion powder; 5% of sulfonated graphene; 1% of spherical ceramic powder; 3% of polyamide elastomer; 10% of flame retardant; 3% of flame retardant synergist; 1% of processing aid.
Wherein the anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding ratio is 1: 4; the spherical ceramic powder is tungsten tetraboride; the flame-retardant synergist is dimelamine phosphate, and the processing aid is an antioxidant and a lubricant.
The flame-retardant heat-conducting nylon plastic is prepared according to the method.
Example 4
The graphene modified flame-retardant heat-conducting nylon plastic comprises the following components in parts by mass:
72% of high-fluidity nylon 6; 5% of anion powder; 5% of sulfonated graphene; 1% of spherical ceramic powder; 3% of polyamide elastomer; 10% of flame retardant; 3% of flame retardant synergist; 1% of processing aid.
Wherein the anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding ratio is 1: 4; the spherical ceramic powder is tungsten tetraboride; the flame-retardant synergist is black phosphorus, and the processing aid is an antioxidant and a lubricant.
The flame-retardant heat-conducting nylon plastic is prepared according to the method.
Example 5
The graphene modified flame-retardant heat-conducting nylon plastic comprises the following components in parts by mass:
68% of high-fluidity nylon 6; 6% of negative ion powder; 6% of sulfonated graphene; 1% of spherical ceramic powder; 3% of polyamide elastomer; 12% of a flame retardant; 3% of flame retardant synergist; 1% of processing aid.
Wherein the anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding ratio is 1: 4; the spherical ceramic powder is tungsten tetraboride; the flame-retardant synergist is magnesium trisilicate, and the processing aid is antioxidant and lubricant.
The flame-retardant heat-conducting nylon plastic is prepared according to the method.
TABLE 1 comparison of product Properties of examples 1-3 with commercially available thermally conductive Nylon
As can be seen from table 1, compared with the physical properties of the heat-conducting nylon products on the market, the heat-conducting nylon material modified by graphene of the present invention has a significantly higher heat-conducting coefficient than the common heat-conducting materials on the market, and also has a very high mechanical strength, and is more suitable for electronic and electrical products such as high-power LED lamp holders requiring rapid heat dissipation.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. The graphene modified flame-retardant heat-conducting nylon plastic comprises the following components in parts by mass:
44-72% of high-fluidity nylon 6; 5-10% of negative ion powder; 5-10% of sulfonated graphene; 1-3% of spherical ceramic powder; 3-6% of polyamide elastomer; 10-20% of a flame retardant; 3-5% of a flame-retardant synergist; 1-2% of a processing aid;
the anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding mass ratio is 1: 2-1: 4;
the spherical ceramic powder is one or a combination of aluminum nitride, silicon nitride and tungsten tetraboride; the flame retardant is an intumescent graphite nanoplatelet;
the flame-retardant synergist is one or the combination of melamine cyanurate, melamine orthophosphate, dimelamine phosphate, black phosphorus and magnesium trisilicate;
the polyamide elastomer is a block copolymer of PA11 and polyoxytetramethylene glycol;
the size of the sulfonated graphene is 400 nm-3 mu m, the thickness of the sulfonated graphene is 1-30 nm, and the molar ratio of C to S in the sulfonated graphene is 10: 1-5: 1;
the relative viscosity of the high-fluidity nylon is 1.8-4.0 dl/g;
the particle size of the spherical ceramic powder is 200 nm-500 nm;
the particle size of the expanded graphite nanoplatelets is 1-5 mu m;
the processing aid is one or the combination of an antioxidant, a nucleating agent and a lubricant.
2. The graphene-modified flame-retardant heat-conducting nylon plastic material as claimed in claim 1, which comprises the following components in percentage by mass:
72% of high-fluidity nylon 6; 5% of anion powder; 5% of sulfonated graphene; 1% of spherical ceramic powder; 3% of polyamide elastomer; 10% of flame retardant; 3% of flame retardant synergist; 1% of processing aid;
wherein the anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding ratio is 1: 4; the spherical ceramic powder is tungsten tetraboride; the flame-retardant synergist is black phosphorus, and the processing aid is an antioxidant and a lubricant.
3. The graphene-modified flame-retardant heat-conducting nylon plastic material as claimed in claim 1, which comprises the following components in percentage by mass:
68% of high-fluidity nylon 6; 6% of negative ion powder; 6% of sulfonated graphene; 1% of spherical ceramic powder; 3% of polyamide elastomer; 12% of a flame retardant; 3% of flame retardant synergist; 1% of processing aid;
wherein the anion powder is a compound of tourmaline powder and lanthanum chloride, and the compounding ratio is 1: 4; the spherical ceramic powder is tungsten tetraboride; the flame-retardant synergist is magnesium trisilicate, and the processing aid is antioxidant and lubricant.
4. The preparation method of the graphene modified flame-retardant heat-conducting nylon plastic as claimed in any one of claims 1 to 3, comprising the following steps:
1) weighing the raw materials according to the formula;
2) drying the high-flow nylon 6 resin at the temperature of 70-80 ℃ for 1-2 hours, and then uniformly mixing the high-flow nylon 6 resin with other raw materials;
3) and placing the mixed raw materials into a discharge hopper of an extruder, and performing melt extrusion granulation by a double-screw extruder to obtain the graphene modified flame-retardant heat-conducting nylon plastic.
5. The preparation method of the graphene modified flame-retardant heat-conducting nylon plastic as claimed in claim 4, wherein the melt extrusion granulation process parameters of the twin-screw extruder are as follows: the temperature of the first zone is 190-; the rotating speed of the main machine is 250-270r/min, and the rotating speed of the feeding is 65-75 r/min.
6. Use of the graphene-modified flame-retardant heat-conducting nylon plastic as claimed in any one of claims 1 to 3 in the fields of automobiles, electronic appliances and mechanical devices.
7. The use of claim 6, wherein the graphene modified flame-retardant heat-conducting nylon plastic is used in the field of LED illumination.
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| CN201710980543.8A CN108690350A (en) | 2017-10-19 | 2017-10-19 | A kind of flame-retarded heat-conducting nylon plastic(s) and preparation method thereof that graphene is modified |
| CN2017109805438 | 2017-10-19 |
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| CN109354868A CN109354868A (en) | 2019-02-19 |
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| CN201811204391.3A Active CN109354868B (en) | 2017-10-19 | 2018-10-16 | Graphene-modified flame-retardant heat-conducting nylon plastic and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819735A (en) * | 2014-03-03 | 2014-05-28 | 中国科学院青岛生物能源与过程研究所 | Inflatable graphite/melamine salt synergic intumescent flame retardant and preparation method thereof |
| CN104844794A (en) * | 2015-05-20 | 2015-08-19 | 苏州高通新材料科技有限公司 | Heat conducting nylon material based on sulfonated graphene and preparation method thereof |
| US20150232664A1 (en) * | 2012-09-07 | 2015-08-20 | Sabic Innovative Plastics Ip B.V. | Thermally conductive blended polymer compositions with improved flame retardancy |
| CN105462246A (en) * | 2015-12-30 | 2016-04-06 | 广东聚石化学股份有限公司 | Graphene/metal powder composite-modification ultrahigh-heat-conductivity nylon and preparing method thereof |
| CN105820557A (en) * | 2016-04-25 | 2016-08-03 | 惠州市环美盛新材料有限公司 | Flame-retardant heat-conducting nylon and preparation method thereof |
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- 2017-10-19 CN CN201710980543.8A patent/CN108690350A/en active Pending
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- 2018-10-16 CN CN201811204391.3A patent/CN109354868B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150232664A1 (en) * | 2012-09-07 | 2015-08-20 | Sabic Innovative Plastics Ip B.V. | Thermally conductive blended polymer compositions with improved flame retardancy |
| CN103819735A (en) * | 2014-03-03 | 2014-05-28 | 中国科学院青岛生物能源与过程研究所 | Inflatable graphite/melamine salt synergic intumescent flame retardant and preparation method thereof |
| CN104844794A (en) * | 2015-05-20 | 2015-08-19 | 苏州高通新材料科技有限公司 | Heat conducting nylon material based on sulfonated graphene and preparation method thereof |
| CN105462246A (en) * | 2015-12-30 | 2016-04-06 | 广东聚石化学股份有限公司 | Graphene/metal powder composite-modification ultrahigh-heat-conductivity nylon and preparing method thereof |
| CN105820557A (en) * | 2016-04-25 | 2016-08-03 | 惠州市环美盛新材料有限公司 | Flame-retardant heat-conducting nylon and preparation method thereof |
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