CN105504793A - Halogen-free flame-retardant and high-heat conductivity insulating nylon material and preparation method thereof - Google Patents
Halogen-free flame-retardant and high-heat conductivity insulating nylon material and preparation method thereof Download PDFInfo
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- CN105504793A CN105504793A CN201511015789.9A CN201511015789A CN105504793A CN 105504793 A CN105504793 A CN 105504793A CN 201511015789 A CN201511015789 A CN 201511015789A CN 105504793 A CN105504793 A CN 105504793A
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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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/22—Halogen free composition
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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Abstract
The invention discloses a halogen-free flame-retardant and high-heat conductivity insulating nylon material and a preparation method thereof. The material is prepared from nylon resin, modified aluminum oxide, zinc oxide, magnesium hydrate, a flexibilizer, halogen-free flame retardant, zinc stearate, antioxygen and a coupling agent. A heat conductivity coefficient reaches 1.5 to 2 W/m.K, flame retardant property reaches V-0 grade, insulating property passes an EU (European Union) safety test (not less than 3750V), processability is high, and production cost is low; the halogen-free flame-retardant and high-heat conductivity insulating nylon material is suitable for a heat dissipation system of an LED lamp so as to replace a cast aluminum-made shell, and can also be used for other electronic products which need flame retarding and heat conducting.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly a kind of halogen-free flameproof high heat conductive insulating nylon material.
Background technology
At present, heat sink material many employings aluminum or aluminum alloy material of most of electronic apparatus on market, metallic conductance, to the speed of the heat of surface of metal product, removes the speed of heat from surface less than convection of air, so the thermal conductivity of metal just can not be used effectively.Not only heavy but also radiating effect is not good.Also there is the problem of poor insulativity simultaneously, do not reach American-European safety standards.
Moulded heat-conductive insulated plastics is the key field of state key development in recent years and save energy.The application of heat radiation becomes the latest fields of thermoplastics research, and thermoplastics is originally thermal insulation material, and now alternative metals becomes good heat conduction and heat radiation material.Until in recent years, just obtain such progress.For the investigator of many blends, the thermal conductivity being improved plastics by modifying plastics is an emerging field being full of chance.Heat conduction composite high-molecular material is not only a kind of temporary transient surrogate to metal, and heat conduction composite high-molecular is that heat application opens the new chance of more broad development.With the parts of material molding of new generation can in some Application Areass alternative metals and pottery, insulating plastics then can be applied to other field simultaneously.As, defence and military, space flight and aviation and civilian microelectronics, high and low voltage electrical equipment, set lights, wind light mutual complementing, smart mobile phone, computer, pcb board, communication equipment and equipment, train, automobile, heating heat-removal system and the field such as the Industrial products used at protection against corrosion environment and safety and equipment.
Summary of the invention
Order of the present invention provides for the defect of existing metallic substance the environmental protection flame retardant plastics that a kind of thermal conductivity is good, insulativity is good, can meet general electronic apparatus cooling requirements, cheap, have very high use value.
The object of the present invention is to provide a kind of halogen-free flameproof high heat conductive insulating nylon material.
Another object of the present invention is to the preparation method that a kind of halogen-free flameproof high heat conductive insulating nylon material is provided.
The technical solution used in the present invention is:
A kind of halogen-free flameproof high heat conductive insulating nylon material, this material is made up of the composition of following mass fraction: 30-35 part high flowing PA6,5-20 part modified aluminas, 10-20 part zinc oxide, 15-35 part magnesium hydroxide, 5-10 part halogen-free flame retardants, 1-3 part Zinic stearas, 1-5 part toughner, 0.5-1 part oxidation inhibitor, 0.5-1 part coupling agent.
Further, the tensile strength of above-mentioned height flowing PA6 is at more than 65Mpa, and melting index is not less than 80g/10min.
Further, above-mentioned modified aluminas is the aluminum oxide crossed through Aluminate coupling processing.
Further, the particle diameter of above-mentioned modified aluminas is 10-20 μm.
Further, above-mentioned zinc oxide particle diameter is 10-50 μm.
Further, above-mentioned magnesium hydroxide particle diameter is 10-50 μm.
Further, above-mentioned halogen-free flame retardants is hypophosphite fire retardant, diethyl content >=92%.
Further, above-mentioned toughner is ethylene-octene copolymer.
Further, above-mentioned coupling agent is silane coupling agent.
A preparation method for halogen-free flameproof high heat conductive insulating nylon material, comprises the following steps:
1) various raw material is taken by formula described above,
2) flow height PA6 resin little inch of dry 2-3 at the temperature of 80-90 DEG C, and then raw material all with other mixes;
3) mixed raw material is placed in the hopper of forcing machine, melt extrudes granulation through twin screw extruder, super-high heat-conductive nylon can be obtained.
The invention has the beneficial effects as follows:
1) the present invention improves flame retardant properties and the heat conductivility of nylon by composite inorganic oxide and halogen-free flame retardants etc., prepare the lamp socket plastics with high heat conduction effect and environmental protection flame retardant rank, meet the service requirements at the electrical equipment such as LED illumination lamp, electric elements.
2) the halogen-free flameproof high heat conductive insulating nylon material thermal conductivity that prepared by the present invention reaches 1.5-2W/mK, flame retardant properties reaches V-0 level, insulating property by European Union's safety test (>=3750V), excellent and the low production cost of processing characteristics, be applicable to LED heat-removal system to replace casting aluminium shell, also can be used for the electronic product that other need flame-retarded heat-conducting.
Embodiment
A kind of halogen-free flameproof high heat conductive insulating nylon material, this material is made up of the composition of following mass fraction: 30-35 part high flowing PA6,5-20 part modified aluminas, 10-20 part zinc oxide, 15-35 part magnesium hydroxide, 5-10 part halogen-free flame retardants, 1-3 part Zinic stearas, 1-5 part toughner, 0.5-1 part oxidation inhibitor, 0.5-1 part coupling agent.
Preferably, the tensile strength of above-mentioned height flowing PA6 is at more than 65Mpa, and melting index is not less than 80g/10min.
Preferably, above-mentioned height flowing PA6 is Ba Ling petrochemical industry YH-800.
Preferably, above-mentioned modified aluminas is the aluminum oxide crossed through Aluminate coupling processing.
Preferably, the particle diameter of above-mentioned modified aluminas is 10-20 μm.
Preferably, above-mentioned zinc oxide particle diameter is 10-50 μm.
Preferably, above-mentioned magnesium hydroxide particle diameter is 10-50 μm.
Preferably, above-mentioned halogen-free flame retardants is hypophosphite fire retardant, diethyl content >=92%.
Preferably, above-mentioned toughner is ethylene-octene copolymer.
Preferably, above-mentioned ethylene-octene copolymer is POE-GMA-MAH terpolymer.
Preferably, above-mentioned ethylene-octene copolymer is that KT-915 is led in Shenyang section.
Preferably, above-mentioned oxidation inhibitor is N, N'-pair-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine.
Preferably, above-mentioned coupling agent is silane coupling agent.
Preferably, above-mentioned coupling agent is Silane coupling agent KH550.
A preparation method for halogen-free flameproof high heat conductive insulating nylon material, comprises the following steps:
1) various raw material is taken by formula described above,
2) flow height PA6 resin little inch of dry 2-3 at the temperature of 80-90 DEG C, and then raw material all with other mixes;
3) mixed raw material is placed in the hopper of forcing machine, melt extrudes granulation through twin screw extruder, super-high heat-conductive nylon can be obtained.
Preferably, the processing parameter that above-mentioned twin screw extruder melt extrudes granulation is: a district temperature 190-195 DEG C, two district temperature 215-220 DEG C, three district temperature 220-230 DEG C, four district temperature 220-225 DEG C, five district temperature 210-215 DEG C, six district temperature 205-210 DEG C, seven district temperature 210-215 DEG C, eight district temperature 210-215 DEG C, nine district temperature 220-225 DEG C, die head temperature 220-225 DEG C.The rotating speed of main frame is 240-260r/min, and the rotating speed of feeding is 65-75r/min.
Below in conjunction with specific embodiment, the present invention is described further, but be not limited thereto.
All embodiments component used is as described below below:
Component one height flowing PA6 resin, tensile strength is more than 65Mpa, and melting index >=80g/10min selects Ba Ling petrochemical industry YH-800;
Component two is modified aluminas, selects domestic aluminum oxide, particle diameter 10-20 μm, and surface is through Aluminate coupling processing mistake;
Component three is zinc oxide, particle diameter 10-50 μm;
Component four magnesium hydroxide, particle diameter 10-50 μm;
Component five is halogen-free flame retardants, domestic hypophosphite fire retardant, diethyl content >=92%;
Component six is Zinic stearas;
Component seven is ethylene-octene copolymer (POE), is POE-GMA-MAH terpolymer, selects Shenyang section to lead to KT-915;
Component eight is antioxidant 1098, i.e. N, N'-pair-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine;
Component nine is coupling agent, and Silane coupling agent KH550 is domestic.
The preparation method of embodiment 1 one kinds of halogen-free flameproof high heat conductive insulating nylon materials
1) raw material of following mass fraction is taken: high flowing PA6 resin 36 parts; Modified aluminas 25 parts; Magnesium hydroxide 15 parts; 10 parts, zinc oxide; Halogen-free flame retardants 8 parts; Zinic stearas 1.5; 10980.2 parts, oxidation inhibitor, KH-5500.3 part; POE toughner 4 parts.
2) the PA resin that flowed by height to be placed in blast drier the little inch of dry 2-3 at the temperature of 80-90 DEG C, then puts into high-speed mixer and mixing 3 minutes together with raw material all with other, mixes.
3) mixed raw material is placed in the hopper of forcing machine, melt extrudes through twin screw extruder, make material, obtain halogen-free flameproof high heat conductive insulating nylon material;
Wherein twin screw extruder melt extrudes the processing parameter making material and is: a district temperature 190-195 DEG C, two district temperature 215-220 DEG C, three district temperature 220-230 DEG C, four district temperature 220-225 DEG C, five district temperature 210-215 DEG C, six district temperature 205-210 DEG C, seven district temperature 210-215 DEG C, eight district temperature 210-215 DEG C, nine district temperature 220-225 DEG C, die head temperature 220-225 DEG C.Main frame: 250r/min, feeding: 70r/min.Open hopper whipping appts.
The preparation method of embodiment 2 one kinds of halogen-free flameproof high heat conductive insulating nylon materials
Method prepared by embodiment 2 is identical with the method for embodiment 1, except raw materials used mass fraction is different.
The mass fraction of each raw material in the present embodiment is as follows:
High flowing PA6 resin 35 parts; Modified aluminas 15 parts; Magnesium hydroxide 27 parts; 12 parts, zinc oxide; Halogen-free flame retardants 6 parts; Zinic stearas 1.5; 10980.2 parts, oxidation inhibitor, KH-5500.3 part; POE toughner 3 parts.
The preparation method of embodiment 3 one kinds of halogen-free flameproof high heat conductive insulating nylon materials
Method prepared by embodiment 3 is identical with the method for embodiment 1, except raw materials used mass fraction is different.
The mass fraction of each raw material in the present embodiment is as follows:
High flowing PA6 resin 36 parts; Modified aluminas 15 parts; Magnesium hydroxide 29 parts; 9 parts, zinc oxide; Halogen-free flame retardants 6 parts; Zinic stearas 1.5; 10980.2 parts, oxidation inhibitor, KH-5500.3 part; POE toughner 3 parts.
The preparation method of embodiment 4 one kinds of halogen-free flameproof high heat conductive insulating nylon materials
Method prepared by embodiment 4 is identical with the method for embodiment 1, except raw materials used mass fraction is different.
The mass fraction of each raw material in the present embodiment is as follows:
High flowing PA6 resin 34 parts; Modified aluminas 12 parts; Magnesium hydroxide 33 parts; 10 parts, zinc oxide; Halogen-free flame retardants 5 parts; Zinic stearas 1.5; 10980.2 parts, oxidation inhibitor, KH-5500.3 part; POE toughner 4 parts.
The preparation method of embodiment 5 one kinds of halogen-free flameproof high heat conductive insulating nylon materials
Method prepared by embodiment 5 is identical with the method for embodiment 1, except raw materials used mass fraction is different.
The mass fraction of each raw material in the present embodiment is as follows:
High flowing PA6 resin 32 parts; Modified aluminas 10 parts; Magnesium hydroxide 37 parts; 10 parts, zinc oxide; Halogen-free flame retardants 5 parts; Zinic stearas 1.5; 10980.2 parts, oxidation inhibitor, KH-5500.3 part; POE toughner 4 parts.
The preparation method of embodiment 6 one kinds of halogen-free flameproof high heat conductive insulating nylon materials
Method prepared by embodiment 6 is identical with the method for embodiment 1, except raw materials used mass fraction is different.
The mass fraction of each raw material in the present embodiment is as follows:
High flowing PA6 resin 32 parts; Modified aluminas 8 parts; Magnesium hydroxide 35 parts; 15 parts, zinc oxide; Halogen-free flame retardants 5 parts; Zinic stearas 1.5; 10980.2 parts, oxidation inhibitor, KH-5500.3 part; POE toughner 3 parts.
Further Performance Detection is done to super-high heat-conductive nylon prepared by above-described embodiment below.
Material mechanical performance is surveyed by following method standard:
Resin good for embodiment 1 ~ 6 granulation is placed in the dry 2-3 hour of air dry oven that temperature is 90-100 DEG C, sample preparation on 80T injection moulding machine.Cooling placement was tested after 24 hours.Testing standard is USS, and probe temperature is room temperature.Tensile strength standard A STMD638, batten is of a size of 57mm*127mm*3.2mm (effective dimensions), and draw speed is 50mm/min; Flexural strength standard: ASTMD790, batten is of a size of 127mm*13mm*3.2mm, and rate of bending is 2mm/min; Chalpy impact standard: ASTMD256, batten is of a size of 64mm*12.7mm*3.2mm, and breach residue width is 10.12mm; Melting index standard: ASTMD1238, test condition is 250 ° of C/2.16kg; Thermal conductivity test standard: ASTMD1461; Resistance to electric leakage disruptive strength: GB/T22689.
The contrast of table 1 embodiment 1-6 and commercially available heat-conducting plastic product performance
From the test data in table 1, halogen-free flameproof high heat conductive insulating nylon material thermal conductivity prepared by the present invention reaches 1.5-2W/mK, flame retardant properties reaches V-0 level, insulating property by European Union's safety test (>=3750V), excellent and the low production cost of processing characteristics, be applicable to LED heat-removal system to replace casting aluminium shell, also can be used for the electronic product that other need flame-retarded heat-conducting.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. a halogen-free flameproof high heat conductive insulating nylon material, it is characterized in that: this material is made up of the composition of following mass fraction: 30-35 part high flowing PA6,5-20 part modified aluminas, 10-20 part zinc oxide, 15-35 part magnesium hydroxide, 5-10 part halogen-free flame retardants, 1-3 part Zinic stearas, 1-5 part toughner, 0.5-1 part oxidation inhibitor, 0.5-1 part coupling agent.
2. material according to claim 1, is characterized in that: the tensile strength of described height flowing PA6 is at more than 65Mpa, and melting index is not less than 80g/10min.
3. material according to claim 1, is characterized in that: described modified aluminas is the aluminum oxide crossed through Aluminate coupling processing.
4. the material according to claim 1 or 3, is characterized in that: the particle diameter of described modified aluminas is 10-20 μm.
5. material according to claim 1, is characterized in that: described zinc oxide particle diameter is 10-50 μm.
6. material according to claim 1, is characterized in that: described magnesium hydroxide particle diameter is 10-50 μm.
7. material according to claim 1, is characterized in that: described halogen-free flame retardants is hypophosphite fire retardant, diethyl content >=92%.
8. material according to claim 1, is characterized in that: described toughner is ethylene-octene copolymer.
9. material according to claim 1, is characterized in that: described coupling agent is silane coupling agent.
10. a preparation method for halogen-free flameproof high heat conductive insulating nylon material, is characterized in that: comprise the following steps:
1) various raw material is taken by the arbitrary described formula of claim 1 ~ 9,
2) flow height PA6 resin little inch of dry 2-3 at the temperature of 80-90 DEG C, and then raw material all with other mixes;
3) mixed raw material is placed in the hopper of forcing machine, melt extrudes granulation through twin screw extruder, super-high heat-conductive nylon can be obtained.
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| CN201511015789.9A CN105504793A (en) | 2015-12-30 | 2015-12-30 | Halogen-free flame-retardant and high-heat conductivity insulating nylon material and preparation method thereof |
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| CN201511015789.9A CN105504793A (en) | 2015-12-30 | 2015-12-30 | Halogen-free flame-retardant and high-heat conductivity insulating nylon material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749438A (en) * | 2018-12-28 | 2019-05-14 | 金发科技股份有限公司 | A kind of low-smoke non-halogen flame-retardant nylon composite materials and its application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749438A (en) * | 2018-12-28 | 2019-05-14 | 金发科技股份有限公司 | A kind of low-smoke non-halogen flame-retardant nylon composite materials and its application |
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