CN108641306A - A kind of heat conductive flame-retarding material and preparation method thereof being exclusively used in LED lamp of automobile radiator - Google Patents
A kind of heat conductive flame-retarding material and preparation method thereof being exclusively used in LED lamp of automobile radiator Download PDFInfo
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- CN108641306A CN108641306A CN201810212083.9A CN201810212083A CN108641306A CN 108641306 A CN108641306 A CN 108641306A CN 201810212083 A CN201810212083 A CN 201810212083A CN 108641306 A CN108641306 A CN 108641306A
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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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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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- 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
- C08L2205/16—Fibres; Fibrils
Abstract
The present invention provides a kind of heat conductive flame-retarding materials and preparation method thereof being exclusively used in LED lamp of automobile radiator, including the component of following parts by weight to be prepared：165 198 parts of polyethylene terephthalate, 42 70 parts of rice bran protein, 30 56 parts of boron nitride, 22 43 parts of magnesia, 17 38 parts of PBI fibre, 10 35 parts of polypropylene fibre, 16 parts of reducing agent, 1 10 parts of silane coupling agent, 3 15 parts of plasticizer.The material being prepared has preferable mechanical property, flame retardant property and heat conductivility.
Description
Technical field
The present invention relates to field of compound material, more particularly to a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator
Material and preparation method thereof.
Background technology
Due to becoming increasingly conspicuous for energy deficiency, people's environmental consciousness is gradually reinforced, and developing energy-efficient electronic device is
The emphasis of research.LED light is a kind of semiconducting solid luminescent device, during the work time can be highly exothermic, keeps tube core junction temperature fast
Speed rises, and thermal resistance is caused to become larger, and luminous efficiency declines.With being continuously increased for its device power, the heat dissipation problem of LED, which becomes, to be ground
The emphasis studied carefully, because excessively high temperature can cause the performance of device and service life to change and reduce, from LED component
Power transfer problem set about, can effectively improve the utilization rate of energy, therefore, research cost is low, the excellent heat sink material of performance
Seem increasingly important.
Rice bran is the byproduct of Rice producing, cheap, utilization rate is low.Protein in rice bran is a kind of high biology
The quality plant albumen of potency, can be used as novel protein resource.But albumen brittleness is larger, is not easy to individually process, need
It is compounded with other polymer substances.Polyethylene terephthalate is that a kind of electrical insulating property is excellent, there is good power
The thermoplastic polyester for learning performance and excellent high- and low-temperature resistance performance, by rice bran protein and polyethylene terephthalate into
Row blending and modifying can improve the intensity of plastics, improve the processability of rice bran protein, while reduce production cost.With rice bran egg
White and polyethylene terephthalate is that host material is finally prepared by the modification of suitable filler and other auxiliary agents
Arrive that the cost of material is low, function admirable can be effectively improved the heat dissipation performance of LED lamp of automobile radiator.
Invention content
Technical problems to be solved：
Traditional aluminium alloy heat radiator, although heat conductivility is preferable, weight is higher, and not easy to be processed, the purpose of the present invention is
A kind of heat conductive flame-retarding material and preparation method thereof being exclusively used in LED lamp of automobile radiator is provided, to promote the reality of automotive light weight technology
It is existing.
Technical solution：
The present invention provides a kind of heat conductive flame-retarding materials being exclusively used in LED lamp of automobile radiator, include the component of following parts by weight
It is prepared：
165-198 parts of polyethylene terephthalate,
42-70 parts of rice bran protein,
30-56 parts of boron nitride,
22-43 parts of magnesia,
17-38 parts of PBI fibre,
10-35 parts of polypropylene fibre,
1-6 parts of reducing agent,
1-10 parts of silane coupling agent,
3-15 parts of plasticizer.
A kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator, the rice bran protein is by following systems
Preparation Method is prepared：
Rice bran is crushed to 50 mesh sieve through pulverizer, 100 g of rice bran after crushing accurately is weighed in the beaker of 2L, 1L is added
Distilled water adjusts pH to 11, heating water bath 1.5h using the NaOH solution of 1 mol/L, and then 4000r/min centrifuges 25min, receives
Collect supernatant, the pH value of supernatant is adjusted to 4.5 with the hydrochloric acid solution of 0.1moL/L, then 4000r/min centrifuges 15min,
Discard supernatant liquid, by bottom sediment vacuum freeze drying to obtain the final product.
Preferably, a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator, the boron nitride include
Two kinds of grain sizes.
It is further preferred that the grain size of the boron nitride, the ratio of 3 μm of boron nitride particles and 15 μm of boron nitride particles
It is 6:1.
Preferably, a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator, the magnesia grain size
Size is 12 μm -15 μm.
Preferably, a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator, the reducing agent are second
Mercaptan.
Preferably, a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator, the plasticizer are lemon
Lemon three monooctyl esters of acid and ethylene glycol are mixed, and its ratio be 1:1.
It is described the present invention also provides a kind of preparation method for the heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator
Preparation method include following preparation process：
（1）By 30-56 parts of boron nitride, 22-43 parts of magnesia, 17-38 parts of PBI fibre, 10-35 parts of polypropylene fibre
It is uniformly mixed for 1-10 parts with silane coupling agent；
（2）1-6 parts of 165-198 parts of polyethylene terephthalate, 42-70 parts of rice bran protein and reducing agent are added to mixing
Continue to mix in machine；
（3）The filler handled well in step 1 is added in kneading machine and continues packet roller；
（4）It is eventually adding 3-15 parts of plasticizer, continues to be uniformly mixed, the then compression moulding on vulcanizing press.
Preferably, the preparation method of a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator, it is described
Preparation method includes following preparation process：
（1）By 30-56 parts of boron nitride, 22-43 parts of magnesia, 17-38 parts of PBI fibre, 10-35 parts of polypropylene fibre
20min is stirred with 1-10 parts of silane coupling agent at 70 DEG C to be uniformly mixed；
（2）165-198 parts of polyethylene terephthalate, 42-70 parts of rice bran protein, reducing agent 1-6 are added in kneading machine
Carry out mixing 3min;
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 3-15 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature
It it is 165 DEG C, pressure is 14 MPa, time 13min.
Preferably, a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator, the polypropylene fibre
Length be 20-50mm.
Advantageous effect：
A kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator provided by the invention has excellent heat conductivility, system
Standby radiator can be very good internal heat is made to be more easy to external environment to distribute, and improve the efficiency that electric energy is converted to luminous energy.
Relative to traditional aluminum alloy materials, material provided by the invention have light weight and cost is low, easy processing, can be at
Type complicated shape sample, it is can be recycled the features such as.
Composite material provided by the invention has excellent mechanical performance, has preferable flame retardant property, is suitable for automobile
The preparation of LED lamp heat sink.
The present invention is added to rice bran protein, not only can be with the mechanical property of reinforcing material, additionally it is possible to which playing reduces cost
Effect.
Specific implementation mode
The following examples can make those skilled in the art that the present invention be more fully understood, but not limit this in any way
Invention.
Rice bran protein in embodiment 1-5 and comparative example 1-3 is prepared by following preparation methods：
Rice bran is crushed to 50 mesh sieve through pulverizer, 100 g of rice bran after crushing accurately is weighed in the beaker of 2L, 1L is added
Distilled water adjusts pH to 11, heating water bath 1.5h using the NaOH solution of 1 mol/L, and then 4000r/min centrifuges 25min, receives
Collect supernatant, the pH value of supernatant is adjusted to 4.5 with the hydrochloric acid solution of 0.1moL/L, then 4000r/min centrifuges 15min,
Discard supernatant liquid, by bottom sediment vacuum freeze drying to obtain the final product.
Embodiment 1
（1）22 parts of the magnesia, 38 parts of PBI fibre, length for being 12 μm -15 μm by 56 parts of boron nitride, particle size
20min is stirred at 70 DEG C for 10 parts of 10 parts of 30mm polypropylene fibres and silane coupling agent to be uniformly mixed；
（2）165 parts of polyethylene terephthalate, 70 parts of rice bran protein, 1 part of ethyl mercaptan are added in kneading machine and are mixed
Refining is kneaded 3min；
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 15 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature is
165 DEG C, pressure is 14 MPa, time 13min；
The boron nitride is 15 μm of boron nitride of 3 μm of boron nitride of grain size and grain size with ratio 6:1 mixes；
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
Embodiment 2
（1）43 parts of the magnesia, 17 parts of PBI fibre, length for being 12 μm -15 μm by 30 parts of boron nitride, particle size
20min is stirred at 70 DEG C for 1 part of 35 parts of 30mm polypropylene fibres and silane coupling agent to be uniformly mixed；
（2）198 parts of polyethylene terephthalate, 42 parts of rice bran protein, 6 parts of ethyl mercaptan are added in kneading machine and are mixed
Refining is kneaded 3min；
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 3 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature is
165 DEG C, pressure is 14 MPa, time 13min；
The boron nitride is 15 μm of boron nitride of 3 μm of boron nitride of grain size and grain size with ratio 6:1 mixes；
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
Embodiment 3
（1）25 parts of the magnesia, 34 parts of PBI fibre, length for being 12 μm -15 μm by 46 parts of boron nitride, particle size
20min is stirred at 70 DEG C for 3 parts of 15 parts of 30mm polypropylene fibres and silane coupling agent to be uniformly mixed；
（2）190 parts of polyethylene terephthalate, 49 parts of rice bran protein, 5 parts of ethyl mercaptan are added in kneading machine and are mixed
Refining is kneaded 3min；
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 13 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature is
165 DEG C, pressure is 14 MPa, time 13min；
The boron nitride is 15 μm of boron nitride of 3 μm of boron nitride of grain size and grain size with ratio 6:1 mixes；
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
Embodiment 4
（1）38 parts of the magnesia, 22 parts of PBI fibre, length for being 12 μm -15 μm by 38 parts of boron nitride, particle size
20min is stirred at 70 DEG C for 7 parts of 30 parts of 30mm polypropylene fibres and silane coupling agent to be uniformly mixed；
（2）177 parts of polyethylene terephthalate, 65 parts of rice bran protein, 2 parts of ethyl mercaptan are added in kneading machine and are mixed
Refining is kneaded 3min；
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 4 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature is
165 DEG C, pressure is 14 MPa, time 13min；
The boron nitride is 15 μm of boron nitride of 3 μm of boron nitride of grain size and grain size with ratio 6:1 mixes；
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
Embodiment 5
（1）32 parts of the magnesia, 28 parts of PBI fibre, length for being 12 μm -15 μm by 41 parts of boron nitride, particle size
20min is stirred at 70 DEG C for 5 parts of 22 parts of 30mm polypropylene fibres and silane coupling agent to be uniformly mixed；
（2）187 parts of polyethylene terephthalate, 60 parts of rice bran protein, 3 parts of ethyl mercaptan are added in kneading machine and are mixed
Refining is kneaded 3min；
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 7 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature is
165 DEG C, pressure is 14 MPa, time 13min；
The boron nitride is 15 μm of boron nitride of 3 μm of boron nitride of grain size and grain size with ratio 6:1 mixes；
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
Comparative example 1
This comparative example the difference from example 2 is that, the dosage of each ingredient has been more than claim limited range.Specifically
Saying is：
（1）15 parts of the magnesia, 40 parts of PBI fibre, length for being 12 μm -15 μm by 28 parts of boron nitride, particle size
20min is stirred at 70 DEG C for 11 parts of 9 parts of 30mm polypropylene fibres and silane coupling agent to be uniformly mixed；
（2）198 parts of polyethylene terephthalate, 42 parts of rice bran protein, 7 parts of ethyl mercaptan are added in kneading machine and are mixed
Refining is kneaded 3min；
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 16 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature is
165 DEG C, pressure is 14 MPa, time 13min；
The boron nitride is 15 μm of boron nitride of 3 μm of boron nitride of grain size and grain size with ratio 6:1 mixes；
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
Comparative example 2
This comparative example the difference from example 2 is that, the grain size of boron nitride is 3um.Specifically：
（1）By grain size is 30 parts of 3um boron nitride, particle size is 12 μm -15 μm 43 parts of magnesia, PBI fibre
17 parts, that length is that 1 part of 35 parts of 30mm polypropylene fibres and silane coupling agent stirs 20min at 70 DEG C is uniformly mixed；
（2）198 parts of polyethylene terephthalate, 42 parts of rice bran protein, 6 parts of ethyl mercaptan are added in kneading machine and are mixed
Refining is kneaded 3min；
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 3 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature is
165 DEG C, pressure is 14 MPa, time 13min；
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
Comparative example 3
This comparative example the difference from example 2 is that, the dosage of PBI fibre is different.Specifically：
（1）43 parts of the magnesia, 10 parts of PBI fibre, length for being 12 μm -15 μm by 30 parts of boron nitride, particle size
20min is stirred at 70 DEG C for 1 part of 35 parts of 30mm polypropylene fibres and silane coupling agent to be uniformly mixed；
（2）198 parts of polyethylene terephthalate, 42 parts of rice bran protein, 6 parts of ethyl mercaptan are added in kneading machine and are mixed
Refining is kneaded 3min；
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 3 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature is
165 DEG C, pressure is 14 MPa, time 13min；
The boron nitride is 15 μm of boron nitride of 3 μm of boron nitride of grain size and grain size with ratio 6:1 mixes；
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
Oxygen index (OI) is tested by GB/T2406-1993, and thermal conductivity test is with reference to GB/T11205-1989, tensile strength test reference
GB1040-92, impact strength test reference GB1043-93, test result see the table below：
The test of table 1 heat conduction and flame retardant property
2 Mechanics Performance Testing of table
By test result it is found that a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator provided by the invention, thermal conductivity
Rate can reach 1.96 W/mk, and oxygen index (OI) can reach 28.9%, and impact strength can reach 41.3 KJ/m2, tensile strength can reach
52.9MPa has good mechanical property, flame retardant property and heat conductivility.By test result in comparative example 1 it is found that each
The usage ratio of raw material need to be controlled in appropriate range, just the properties of material can be made to be optimal.By being tested in comparative example 2
As a result it is found that the heat filling mixing of different-grain diameter is filled into base material, heat conductivility is better than a kind of grain size of single use.
More close accumulation can be formed between small particle boron nitride particle and big grain size boron nitride particle, is advantageously formed more effectively
Heat conduction network.By the test result of comparative example 3 it is found that if PBI fibre dosage is very little, flame retardant property can decline, and gather
Benzimidazole fiber forms network structure after being blended with basis material, can play the role of skeletal support in combustion, make
It obtains when sample burns without dripping off, to slow down the trend of burning.
Claims (10)
1. a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator, which is characterized in that include the component of following parts by weight
It is prepared：
165-198 parts of polyethylene terephthalate,
42-70 parts of rice bran protein,
30-56 parts of boron nitride,
22-43 parts of magnesia,
17-38 parts of PBI fibre,
10-35 parts of polypropylene fibre,
1-6 parts of reducing agent,
1-10 parts of silane coupling agent,
3-15 parts of plasticizer.
2. a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator according to claim 1, which is characterized in that
The rice bran protein is prepared by following preparation methods：
Rice bran is crushed to 50 mesh sieve through pulverizer, 100 g of rice bran after crushing accurately is weighed in the beaker of 2L, 1L is added
Distilled water adjusts pH to 11, heating water bath 1.5h using the NaOH solution of 1 mol/L, and then 4000r/min centrifuges 25min, receives
Collect supernatant, the pH value of supernatant is adjusted to 4.5 with the hydrochloric acid solution of 0.1moL/L, then 4000r/min centrifuges 15min,
Discard supernatant liquid, by bottom sediment vacuum freeze drying to obtain the final product.
3. a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator according to claim 1, which is characterized in that
The boron nitride includes two kinds of grain sizes, and two kinds of grain sizes are respectively 3 μm and 15 μm.
4. the grain size of boron nitride according to claim 3, which is characterized in that 3 μm of boron nitride particles and 15 μm of boron nitride
The ratio of grain is 6:1.
5. a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator according to claim 1, which is characterized in that
The magnesia particle size is 12 μm -15 μm.
6. a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator according to claim 1, which is characterized in that
The reducing agent is ethyl mercaptan.
7. a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator according to claim 1, which is characterized in that
The plasticizer is that trioctyl lemon acid and ethylene glycol are mixed, and its ratio be 1:1.
8. a kind of preparation method of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator according to claim 1,
It is characterized in that, the preparation method includes following preparation process：
（1）By 30-56 parts of boron nitride, 22-43 parts of magnesia, 17-38 parts of PBI fibre, 10-35 parts of polypropylene fibre
It is uniformly mixed for 1-10 parts with silane coupling agent；
（2）1-6 parts of 165-198 parts of polyethylene terephthalate, 42-70 parts of rice bran protein and reducing agent are added to mixing
Continue to mix in machine；
（3）The filler handled well in step 1 is added in kneading machine and continues packet roller；
（4）It is eventually adding 3-15 parts of plasticizer, continues to be uniformly mixed, the then compression moulding on vulcanizing press.
9. a kind of preparation method of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator according to claim 8,
It is characterized in that, the preparation method includes following preparation process：
（1）By 30-56 parts of boron nitride, 22-43 parts of magnesia, 17-38 parts of PBI fibre, 10-35 parts of polypropylene fibre
20min is stirred with 1-10 parts of silane coupling agent at 70 DEG C to be uniformly mixed；
（2）165-198 parts of polyethylene terephthalate, 42-70 parts of rice bran protein, reducing agent 1-6 are added in kneading machine
Carry out mixing 3min;
（3）The filler handled well in step 1 is added in kneading machine and continues to be kneaded, mixing time 3min；
（4）It is eventually adding 3-15 parts of plasticizer, continues to be kneaded 7min, the then compression moulding on vulcanizing press, curing temperature
It it is 165 DEG C, pressure is 14 MPa, time 13min.
10. a kind of heat conductive flame-retarding material being exclusively used in LED lamp of automobile radiator according to claim 1, which is characterized in that
The length of the polypropylene fibre is 20-50mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116589864A (en) * | 2023-05-22 | 2023-08-15 | 苏州博濬新材料科技有限公司 | Preparation method of heat-conductive resin composition capable of maintaining high heat conductivity |
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Application publication date: 20181012 |