CN110396291A - A kind of thermal insulation material and preparation method thereof applied to Cold Chain Logistics - Google Patents
A kind of thermal insulation material and preparation method thereof applied to Cold Chain Logistics Download PDFInfo
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- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
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Abstract
The invention discloses a kind of thermal insulation materials for Cold Chain Logistics, it is characterized in that, each raw material including following parts by weight is made: 4-5 parts of N- vinyl neighbour benzene imines, 2-4 parts of 2- vinyl -1H- benzimidazole, 2- vinyl -4,6- diaminostilbene, 3,5- triazines/10-20 parts of ending carboxy polyurethane condensation polymer, 0.5-2 parts of allyl phenyl-pentafluoride, 0.5-2 parts of vinyltrimethoxysilane, 0.5-1.5 parts of foaming agent, micro-and nano-particles 1-3 parts inorganic, triazine radical is bat 0.1-0.3 parts micro-nano, 0.4-0.7 parts of initiator.The invention also discloses the preparation methods of the thermal insulation material for Cold Chain Logistics.Thermal insulation material disclosed by the invention for Cold Chain Logistics has heat insulation effect more preferably, and mechanical mechanics property, ageing-resistant performance, weatherability are more excellent, flame retardant property and the more preferable advantage of resistance to low temperature.
Description
Technical field
The present invention relates to modern Cold Chain Logistics technical field more particularly to a kind of thermal insulation material applied to Cold Chain Logistics and
Preparation method.
Background technique
Cold chain refers to that certain raw-food materials, the food by processing or semi-finished product, special biological products and drug are passing through
After crossing purchase, processing, inactivation, in product processing, storage, transport, distribution and retail, use process, links are always
Under specific low temperature environment necessary to product, loss is reduced, prevent from polluting and is gone bad, to guarantee product food safety, life
The special supply chain system of object safety, drug safety.Modern Cold Chain Logistics are exactly the logistics using this cold chain technology, it be with
The progress of science and technology, the development of Refrigeration Technique and set up, be based on being beneficial cold chain technology, with Refrigeration Technique
The low temperature logistics process of means.
The cold chain effect of modern Cold Chain Logistics has outside the Pass in addition to the type with cold-storage material, is also largely limited by use
In the performance of the thermal insulation material of Cold Chain Logistics.With the development of science and technology, the preparation of the thermal insulation material for Cold Chain Logistics is in recent years
Existing many research, also makes some progress and achievement, such as discloses one kind application No. is CN200920097784.9 and fills out
Formula honeycomb cardboard heat preservation environment protection plate is filled, is mainly used in making the green used, daily largely consumed in refrigeration stream industry
Environment-friendly insulating cabinet, manufactured heat preservation plate material insulating power is good, and load-carrying properties are good.But it is in the prior art for Cold Chain Logistics
There is also some technical problems, such as resistance to low temperature and anti-flammability to need to be further increased for thermal insulation material.Therefore, how to change
The comprehensive performance for being apt to the thermal insulation material for Cold Chain Logistics becomes researcher's problem urgently to be resolved in the industry.
Currently, thermal insulation material is broadly divided into organic and inorganic heat insulation material two major classes, organic insulation material mainly has poly-
Urethane foam, foamed polystyrene board, plastic extrusion polystyrene board etc..Inorganic heat insulation material mainly has perlite, foamed cement, gas
Gel felt, rock wool etc..Organic insulation material heat insulation effect is good, and have it is light-weight, machinability is good, compactness is high, still
It is not ageing-resistant, deformation coefficient is big, stability is poor, Safety and Environmental Protection is poor；Inorganic heat insulation material has preferable fire protection flame retarding and resists
Ageing properties, long service life, deformation coefficient is small, and performance is stablized, but heat insulation effect is slightly worse.Therefore existing organic heat-insulating material is developed
The low thermal conductivity of material, but the thermal insulation material suitable for Cold Chain Logistics for having inorganic heat insulation material fire retardant performance is to grind at present
The focus and emphasis studied carefully.
Summary of the invention
In order to overcome the defects of the prior art, the present invention provides a kind of thermal insulation material for Cold Chain Logistics, the heat preservation
Material has heat insulation effect more preferably, and mechanical mechanics property, ageing-resistant performance, weatherability are more excellent, flame retardant property and low temperature resistant
The more preferable advantage of performance.Meanwhile the present invention also provides the preparation methods of the thermal insulation material for Cold Chain Logistics.
To achieve the above object of the invention, the technical solution adopted by the present invention is that: a kind of thermal insulation material for Cold Chain Logistics,
Each raw material including following parts by weight is made: 4-5 parts of N- vinyl neighbour benzene imines, 2-4 parts of 2- vinyl -1H- benzimidazole, 2-
Vinyl -4,6- diaminostilbene, 3,5- triazine/10-20 parts of ending carboxy polyurethane condensation polymer, 0.5-2 parts of allyl phenyl-pentafluoride, second
0.5-2 parts of alkenyl trimethoxy silane, 0.5-1.5 parts of foaming agent, micro-and nano-particles 1-3 parts inorganic, the micro-nano bat of triazine radical
0.1-0.3 parts, 0.4-0.7 parts of initiator.
Further, the initiator is azodiisobutyronitrile, azobisisoheptonitrile, benzoyl peroxide, peroxidating first
At least one of ethyl ketone.
Further, the foaming agent is dodecyl sodium sulfate, in sodium sulfate of polyethenoxy ether of fatty alcohol, sodium bicarbonate
At least one.
Further, the inorganic micro-and nano-particles are magnesium hydroxide, calcium hydroxide, silica, magnalium hydrotalcite, zinc
Any one or more of aluminum hydrotalcite, montmorillonite, sepiolite, saponite, hectorite or clay.
Further, the preparation of 2- vinyl -4, the 6- diamino-1,3,5-triazines/ending carboxy polyurethane condensation polymer
Method includes the following steps: 2- vinyl -4,6- diamino-1,3,5-triazines, ending carboxy polyurethane, catalyst, 2- ethoxy
Base -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, polymerization inhibitor, high boiling solvent are added in autoclave, to autoclave
In be filled with nitrogen or inert gas, be warming up to 150-170 DEG C, at pressure 1.0-1.5MPa maintain constant pressure carry out draining 1-
3 hours, after be warming up to 230-240 DEG C, carried out polycondensation reaction 8-12 hours at 50-100Pa, after reaction, be cooled to room
Temperature is adjusted to normal pressure, settles out in water, is washed 2-4 times with the sodium hydroxide solution that mass fraction is 5-10%, then use ethanol washing
Ethyl alcohol is evaporated off in product 3-5 times, back spin, obtains 2- vinyl -4,6- diamino-1,3,5-triazines/ending carboxy polyurethane polycondensation
Object.
Preferably, 2- vinyl -4,6- diamino-1,3,5-triazines, ending carboxy polyurethane, catalyst, 2- ethoxy
Base -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, polymerization inhibitor, high boiling solvent mass ratio be 1:1:(0.2-0.4): 0.1:
0.1:(6-10)。
Preferably, the polymerization inhibitor is at least one of tetrachloroquinone, 1,4-naphthoquinone；The high boiling solvent is diformazan
At least one of sulfoxide, N,N-dimethylformamide, N-Methyl pyrrolidone, DMAC N,N' dimethyl acetamide；The indifferent gas
Body is any one of helium, neon, argon gas.
Preferably, the catalyst is benzenephosphonic acid, benzene hypophosphorous acid, triphenyl phosphate, at least one in triphenyl phosphite
Kind.
Further, the preparation method of the micro-nano bat of the triazine radical includes the following steps: to urinate diallyl isocyanide
Acid, 2,2'- diallyl bisphenol and azodiisobutyronitrile are added in organic solvent, and in nitrogen atmosphere, temperature is 75-85 DEG C
Under conditions of, ultrasonic response 0.5-1h is then allowed to stand 2-4 hours, is finally centrifugated, distilled water and ethyl alcohol pair is respectively adopted
Product carries out cleaning 3-5 time respectively, postposition in a vacuum drying oven at 80-90 DEG C drying to constant weight, after obtain triazine radical micro-nano
Rice bat.
Preferably, the organic solvent is cyclohexanone or dehydrated alcohol.
Preferably, the diallyl isocyanuric acid, 2,2'- diallyl bisphenol, azodiisobutyronitrile, organic solvent
Mass ratio be (1-5): (3-8): (0.03-0.07): (75-95).
Further, the preparation method of the thermal insulation material for Cold Chain Logistics, include the following steps: by each raw material by
Ratio obtains mixture after mixing, then adds mixture into and carries out melting extrusion in double screw extruder, after will melt
Body is transferred to stand foaming in foaming molding mold, demoulds after to be solidified, is finally 65-85 DEG C place the material in temperature, humidity is
8-12 hours in the hygrothermal environment of 45-55%, the thermal insulation material for being used for Cold Chain Logistics is obtained.
The beneficial effects of adopting the technical scheme are that
(1) a kind of thermal insulation material for Cold Chain Logistics provided by the invention, it is not fluorine-containing, meet environmental requirement, technique letter
Single, easy to operate, easy to implement, scientific and reasonable, economic value is high.
(2) a kind of thermal insulation material for Cold Chain Logistics provided by the invention, overcome traditional organic insulation material intolerant to
Aging, deformation coefficient is big, stability is poor, Safety and Environmental Protection is poor, and traditional inorganic heat insulation material heat insulation effect is slightly worse, is currently used for cold
The thermal insulation material resistance to low temperature and anti-flammability of chain logistics need the defect further increased, have heat insulation effect more preferably, mechanical
Mechanical property, ageing-resistant performance and weatherability are more excellent, flame retardant property and the more preferable advantage of resistance to low temperature.
(3) a kind of thermal insulation material for Cold Chain Logistics provided by the invention, prepares 2- vinyl -4,6- diamino first
Base -1,3,5-triazines/ending carboxy polyurethane condensation polymer introduces triazine radical and vinyl in polyurethane molecular chain, triazine radical
It introduces, can effectively improve the weatherability and ageing-resistant performance of material, vinyl is introduced as subsequent forming stage crosslinked copolyreaction
Reaction site is provided, material each component is organically combined with chemical bond form, is conducive to each structure synergistic effect
And then improve the comprehensive performance of thermal insulation material；Add N- vinyl neighbour's benzene imines, 2- vinyl -1H- benzimidazole structure, collaboration
Effect can improve the resistance to low temperature of thermal insulation material；The introducing of allyl phenyl-pentafluoride improves the hydrophobicity of material, reduces steam
It penetrates, and then is effectively improved the heat insulation effect of thermal insulation material；The introducing of vinyltrimethoxysilane, due to trimethoxy silicon knot
The introducing of structure improves each component wettability of the surface, improves the compatibility between them, reduce occur mutually separate can
Energy property, and be conducive to the foam stability that foams and maintain；The addition of the micro-nano bat of triazine radical due to its distinctive design feature,
The thermal conductivity of material is further decreased, improves heat insulation effect, and the introducing of triazine radical can improve its phase between other components
Capacitive can also improve the weatherability and mechanical mechanics property of material, when being applied to Cold Chain Logistics, be conducive to improve cold chain effect,
Extend poultry cool time, so that the food or drug of logistics transportation are safer.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, and make features described above of the invention,
Purpose and advantage are more clear understandable, and the present invention will be further explained with reference to the examples below.Embodiment is only used for
It is bright the present invention rather than limit the scope of the invention.
Involved ending carboxy polyurethane is previously prepared in the following embodiments of the present invention, preparation method reference: BAB type
Ending carboxy polyurethane (A)-epoxy resin (B) block copolymer-toughened phenoplasts, Dan Shiming, Sun Zaijian, plastic processing,
1991,000 (003), number-average molecular weight 2000；Other raw materials are commercially available.
Embodiment 1
A kind of thermal insulation material for Cold Chain Logistics, each raw material including following parts by weight are made: N- vinyl neighbour benzene is sub-
4 parts of amine, 2 parts of 2- vinyl -1H- benzimidazole, 2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane polycondensation
10 parts of object, 0.5 part of allyl phenyl-pentafluoride, 0.5 part of vinyltrimethoxysilane, 0.5 part of dodecyl sodium sulfate, magnesium hydroxide
1 part, 0.1 part, 0.4 part of azodiisobutyronitrile of the micro-nano bat of triazine radical.
The preparation method of 2- vinyl -4, the 6- diamino-1,3,5-triazines/ending carboxy polyurethane condensation polymer, including
Following steps: by 2- vinyl -4,6- diaminostilbene, 3,5- triazine, ending carboxy polyurethane, benzenephosphonic acid, 2- ethyoxyl -1- ethoxy
Carbonic acyl radical -1,2- dihydroquinoline, tetrachloroquinone, dimethyl sulfoxide are added in autoclave, and nitrogen is filled with into autoclave
Gas is warming up to 150 DEG C, at pressure 1.0MPa maintain constant pressure carry out draining 1 hour, after be warming up to 230 DEG C, at 50Pa
It carries out polycondensation reaction 8 hours, after reaction, is cooled to room temperature, is adjusted to normal pressure, settles out in water, be 5% with mass fraction
Sodium hydroxide solution washs 2 times, then with ethanol washing product 3 times, ethyl alcohol is evaporated off in back spin, obtains 2- vinyl -4,6- diamino
Base -1,3,5- triazine/ending carboxy polyurethane condensation polymer；2- vinyl -4,6- the diaminostilbene, 3,5- triazine, carboxyl end group are poly-
Urethane, benzenephosphonic acid, 2- ethyoxyl -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, tetrachloroquinone, dimethyl sulfoxide mass ratio be 1:
1:0.2:0.1:0.1:6。
The preparation method of the micro-nano bat of triazine radical includes the following steps: diallyl isocyanuric acid 10g, 2,
2'- diallyl bisphenol 30g and azodiisobutyronitrile 0.3g are added in cyclohexanone 750g, in nitrogen atmosphere, temperature 75
Under conditions of DEG C, ultrasonic response 0.5h is then allowed to stand 2 hours, is finally centrifugated, and distilled water and ethyl alcohol is respectively adopted to production
Object carries out cleaning 3 times respectively, and postposition is dried at 80 DEG C to constant weight in a vacuum drying oven, after obtain the micro-nano bat of triazine radical.
The preparation method of the thermal insulation material for Cold Chain Logistics includes the following steps: in proportion to mix each raw material
Obtain mixture after uniformly, then add mixture into and carry out melting extrusion in double screw extruder, after melt is transferred to hair
Stand foaming in molding die is steeped, is demoulded after to be solidified, is finally 65 DEG C place the material in temperature, the damp and hot ring that humidity is 45%
8 hours in border, the thermal insulation material for being used for Cold Chain Logistics is obtained.
Embodiment 2
A kind of thermal insulation material for Cold Chain Logistics, each raw material including following parts by weight are made: N- vinyl neighbour benzene is sub-
4.3 parts of amine, 2.5 parts of 2- vinyl -1H- benzimidazole, 2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane
13 parts of condensation polymer, 0.8 part of allyl phenyl-pentafluoride, 0.8 part of vinyltrimethoxysilane, sodium sulfate of polyethenoxy ether of fatty alcohol
0.7 part, 1.5 parts of calcium hydroxide, 0.15 part, 0.55 part of azobisisoheptonitrile of the micro-nano bat of triazine radical.
The preparation method of 2- vinyl -4, the 6- diamino-1,3,5-triazines/ending carboxy polyurethane condensation polymer, including
Following steps: by 2- vinyl -4,6- diaminostilbene, 3,5- triazine, ending carboxy polyurethane, benzene hypophosphorous acid, 2- ethyoxyl -1- second
Oxygen carbonic acyl radical -1,2- dihydroquinoline, 1,4-naphthoquinone, n,N-Dimethylformamide are added in autoclave, to reaction under high pressure
Be filled with helium in kettle, be warming up to 155 DEG C, at pressure 1.2MPa maintain constant pressure carry out draining 1.5 hours, after be warming up to
It 233 DEG C, is carried out polycondensation reaction 9.5 hours at 70Pa, after reaction, is cooled to room temperature, is adjusted to normal pressure, settles out in water,
It is washed 3 times with the sodium hydroxide solution that mass fraction is 6.5%, then with ethanol washing product 3 times, ethyl alcohol is evaporated off in back spin, obtains
To 2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane condensation polymer；2- vinyl -4,6- the diamino -
1,3,5- triazine, ending carboxy polyurethane, benzene hypophosphorous acid, 2- ethyoxyl -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, 1,4- naphthoquinones,
The mass ratio of N,N-dimethylformamide is 1:1:0.25:0.1:0.1:7.
The preparation method of the micro-nano bat of triazine radical includes the following steps: diallyl isocyanuric acid 20g, 2,
2'- diallyl bisphenol 45g and azodiisobutyronitrile 0.45g are added in dehydrated alcohol 800g, and in nitrogen atmosphere, temperature is
Under conditions of 78 DEG C, ultrasonic response 0.7h is then allowed to stand 2.5 hours, is finally centrifugated, distilled water and ethyl alcohol is respectively adopted
Carry out cleaning 4 times respectively to product, postposition is dried at 83 DEG C to constant weight in a vacuum drying oven, after obtain triazine radical micro-nano ball
Stick.
The preparation method of the thermal insulation material for Cold Chain Logistics includes the following steps: in proportion to mix each raw material
Obtain mixture after uniformly, then add mixture into and carry out melting extrusion in double screw extruder, after melt is transferred to hair
Stand foaming in molding die is steeped, is demoulded after to be solidified, is finally 70 DEG C place the material in temperature, the damp and hot ring that humidity is 48%
9 hours in border, the thermal insulation material for being used for Cold Chain Logistics is obtained.
Embodiment 3
A kind of thermal insulation material for Cold Chain Logistics, each raw material including following parts by weight are made: N- vinyl neighbour benzene is sub-
4.5 parts of amine, 3 parts of 2- vinyl -1H- benzimidazole, 2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane contracting
15 parts of polymers, 1.3 parts of allyl phenyl-pentafluoride, 1.2 parts of vinyltrimethoxysilane, 1 part of sodium bicarbonate, 2 parts of sepiolite, triazine
0.2 part of based micro-nano bat, 0.55 part of benzoyl peroxide.
The preparation method of 2- vinyl -4, the 6- diamino-1,3,5-triazines/ending carboxy polyurethane condensation polymer, including
Following steps: by 2- vinyl -4,6- diaminostilbene, 3,5- triazine, ending carboxy polyurethane, triphenyl phosphate, 2- ethyoxyl -1-
Ethoxy carbonic acyl radical -1,2- dihydroquinoline, tetrachloroquinone, N-Methyl pyrrolidone are added in autoclave, to reaction under high pressure
Be filled with neon in kettle, be warming up to 160 DEG C, at pressure 1.3MPa maintain constant pressure carry out draining 2 hours, after be warming up to 235
DEG C, it is carried out polycondensation reaction 10 hours at 80Pa, after reaction, is cooled to room temperature, is adjusted to normal pressure, settles out in water, use matter
It measures the sodium hydroxide solution that score is 7.5% to wash 3 times, then with ethanol washing product 4 times, ethyl alcohol is evaporated off in back spin, obtains 2-
Vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane condensation polymer；2- vinyl -4,6- the diaminostilbene, 3,
5- triazine, ending carboxy polyurethane, triphenyl phosphate, 2- ethyoxyl -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, tetrachloroquinone, N-
The mass ratio of methyl pyrrolidone is 1:1:0.3:0.1:0.1:8.
The preparation method of the micro-nano bat of triazine radical includes the following steps: diallyl isocyanuric acid 30g, 2,
2'- diallyl bisphenol 60g and azodiisobutyronitrile 0.5g are added in cyclohexanone 880g, in nitrogen atmosphere, temperature 80
Under conditions of DEG C, ultrasonic response 0.7h is then allowed to stand 3 hours, is finally centrifugated, and distilled water and ethyl alcohol is respectively adopted to production
Object carries out cleaning 4 times respectively, and postposition is dried at 85 DEG C to constant weight in a vacuum drying oven, after obtain the micro-nano bat of triazine radical.
The preparation method of the thermal insulation material for Cold Chain Logistics includes the following steps: in proportion to mix each raw material
Obtain mixture after uniformly, then add mixture into and carry out melting extrusion in double screw extruder, after melt is transferred to hair
Stand foaming in molding die is steeped, is demoulded after to be solidified, is finally 75 DEG C place the material in temperature, the damp and hot ring that humidity is 50%
10 hours in border, the thermal insulation material for being used for Cold Chain Logistics is obtained.
Embodiment 4
A kind of thermal insulation material for Cold Chain Logistics, each raw material including following parts by weight are made: N- vinyl neighbour benzene is sub-
4.8 parts of amine, 3.7 parts of 2- vinyl -1H- benzimidazole, 2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane
18 parts of condensation polymer, 1.8 parts of allyl phenyl-pentafluoride, 1.8 parts of vinyltrimethoxysilane, 1.4 parts of foaming agent, the inorganic micro-nano grain of rice
2.7 parts, 0.27 part, 0.6 part of initiator of the micro-nano bat of triazine radical of son；The initiator is azodiisobutyronitrile, azo two is different
Heptonitrile, benzoyl peroxide, methyl ethyl ketone peroxide 1:2:1:4 in mass ratio are mixed；The foaming agent is dodecyl sulphur
Sour sodium, sodium sulfate of polyethenoxy ether of fatty alcohol, sodium bicarbonate 1:3:2 in mass ratio are mixed；The inorganic micro-and nano-particles
For silica, magnalium hydrotalcite, zinc-aluminum hydrotalcite, montmorillonite, saponite, hectorite 3:5:1:3:2:1 in mass ratio mixing
It forms.
The preparation method of 2- vinyl -4, the 6- diamino-1,3,5-triazines/ending carboxy polyurethane condensation polymer, including
Following steps: by 2- vinyl -4,6- diaminostilbene, 3,5- triazine, ending carboxy polyurethane, catalyst, 2- ethyoxyl -1- ethoxy
Carbonic acyl radical -1,2- dihydroquinoline, polymerization inhibitor, high boiling solvent are added in autoclave, and argon is filled with into autoclave
Gas is warming up to 165 DEG C, at pressure 1.4MPa maintain constant pressure carry out draining 2.8 hours, after be warming up to 238 DEG C, in 90Pa
Lower progress polycondensation reaction 11 hours, after reaction, is cooled to room temperature, is adjusted to normal pressure, settles out in water, be with mass fraction
9% sodium hydroxide solution washs 4 times, then with ethanol washing product 5 times, ethyl alcohol is evaporated off in back spin, obtains 2- vinyl -4,6-
Diaminostilbene, 3,5- triazine/ending carboxy polyurethane condensation polymer；2- vinyl -4,6- the diaminostilbene, 3,5- triazine, end carboxylic
Based polyurethanes, catalyst, 2- ethyoxyl -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, polymerization inhibitor, high boiling solvent mass ratio
For 1:1:0.35:0.1:0.1:9；The polymerization inhibitor is tetrachloroquinone, 1,4- naphthoquinones 1:2 in mass ratio is mixed；The height
Boiling point solvent be dimethyl sulfoxide, N,N-dimethylformamide, N-Methyl pyrrolidone, in DMAC N,N' dimethyl acetamide in mass ratio
1:2:4:3 is mixed；The catalyst is benzenephosphonic acid, benzene hypophosphorous acid, triphenyl phosphate, triphenyl phosphite in mass ratio 3:
4:5:2 is mixed.
The preparation method of the micro-nano bat of triazine radical includes the following steps: diallyl isocyanuric acid 40g, 2,
2'- diallyl bisphenol 70g and azodiisobutyronitrile 0.6g are added in dehydrated alcohol 900g, in nitrogen atmosphere, temperature 83
Under conditions of DEG C, ultrasonic response 0.8h is then allowed to stand 3.5 hours, is finally centrifugated, distilled water and ethyl alcohol pair is respectively adopted
Product carries out cleaning 5 times respectively, and postposition is dried at 88 DEG C to constant weight in a vacuum drying oven, after obtain triazine radical micro-nano ball
Stick.
The preparation method of the thermal insulation material for Cold Chain Logistics includes the following steps: in proportion to mix each raw material
Obtain mixture after uniformly, then add mixture into and carry out melting extrusion in double screw extruder, after melt is transferred to hair
Stand foaming in molding die is steeped, is demoulded after to be solidified, is finally 80 DEG C place the material in temperature, the damp and hot ring that humidity is 53%
11 hours in border, the thermal insulation material for being used for Cold Chain Logistics is obtained.
Embodiment 5
A kind of thermal insulation material for Cold Chain Logistics, each raw material including following parts by weight are made: N- vinyl neighbour benzene is sub-
5 parts of amine, 4 parts of 2- vinyl -1H- benzimidazole, 2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane polycondensation
20 parts of object, 2 parts of allyl phenyl-pentafluoride, 2 parts of vinyltrimethoxysilane, 1.5 parts of dodecyl sodium sulfate, 3 parts of clay, triazine
0.3 part of based micro-nano bat, 0.7 part of methyl ethyl ketone peroxide.
The preparation method of 2- vinyl -4, the 6- diamino-1,3,5-triazines/ending carboxy polyurethane condensation polymer, including
Following steps: by 2- vinyl -4,6- diaminostilbene, 3,5- triazine, ending carboxy polyurethane, triphenyl phosphite, 2- ethyoxyl -
1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, 1,4-naphthoquinone, n,N-dimethylacetamide are added in autoclave, to high pressure
Be filled with nitrogen in reaction kettle, be warming up to 170 DEG C, at pressure 1.5MPa maintain constant pressure carry out draining 3 hours, after be warming up to
It 240 DEG C, is carried out polycondensation reaction 12 hours at 100Pa, after reaction, is cooled to room temperature, is adjusted to normal pressure, settles out in water,
It is washed 4 times with the sodium hydroxide solution that mass fraction is 10%, then with ethanol washing product 5 times, ethyl alcohol is evaporated off in back spin, obtains
2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane condensation polymer；2- vinyl -4,6- the diaminostilbene,
3,5- triazine, ending carboxy polyurethane, triphenyl phosphite, 2- ethyoxyl -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, 1,4- naphthalene
Quinone, DMAC N,N' dimethyl acetamide mass ratio be 1:1:0.4:0.1:0.1:10.
The preparation method of the micro-nano bat of triazine radical includes the following steps: diallyl isocyanuric acid 50g, 2,
2'- diallyl bisphenol 80g and azodiisobutyronitrile 0.7g are added in cyclohexanone 950g, in nitrogen atmosphere, temperature 85
Under conditions of DEG C, ultrasonic response 1h is then allowed to stand 4 hours, is finally centrifugated, and distilled water and ethyl alcohol is respectively adopted to product
Carry out cleaning 5 times respectively, postposition is dried at 90 DEG C to constant weight in a vacuum drying oven, after obtain the micro-nano bat of triazine radical.
The preparation method of the thermal insulation material for Cold Chain Logistics includes the following steps: in proportion to mix each raw material
Obtain mixture after uniformly, then add mixture into and carry out melting extrusion in double screw extruder, after melt is transferred to hair
Stand foaming in molding die is steeped, is demoulded after to be solidified, is finally 85 DEG C place the material in temperature, the damp and hot ring that humidity is 55%
12 hours in border, the thermal insulation material for being used for Cold Chain Logistics is obtained.
Comparative example 1
A kind of thermal insulation material for Cold Chain Logistics, it is essentially identical with the formula and preparation method of embodiment 1, unlike
N- vinyl neighbour's benzene imines is not added.
Comparative example 2
A kind of thermal insulation material for Cold Chain Logistics, it is essentially identical with the formula and preparation method of embodiment 1, unlike
2- vinyl -1H- benzimidazole is not added.
Comparative example 3
A kind of thermal insulation material for Cold Chain Logistics, it is essentially identical with the formula and preparation method of embodiment 1, unlike
2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane condensation polymer are replaced with polyurethane.
Comparative example 4
A kind of thermal insulation material for Cold Chain Logistics, it is essentially identical with the formula and preparation method of embodiment 1, unlike
Allyl phenyl-pentafluoride is not added.
Comparative example 5
A kind of thermal insulation material for Cold Chain Logistics, it is essentially identical with the formula and preparation method of embodiment 1, unlike
Do not add vinyltrimethoxysilane.
Comparative example 6
A kind of thermal insulation material for Cold Chain Logistics, it is essentially identical with the formula and preparation method of embodiment 1, unlike
The micro-nano bat of triazine radical is not added.
Comparative example 7
It is commercially available for the thermal insulation material of Cold Chain Logistics, main component is polyurathamc.
Quantitative measurement is carried out to embodiment sample and comparative example, test method and test result are as shown in table 1.
1 sample thermal insulation material physical property testing result of table
| Detection project | Thermal coefficient | Tensile strength | Limit oxygen index |
| Unit | w/m.k | MPa | % |
| Testing standard | GB/T 3399-1982 | GB1040-92 | GB/T2406-1993 |
| Embodiment 1 | 0.027 | 33.8 | 29 |
| Embodiment 2 | 0.025 | 34.2 | 30 |
| Embodiment 3 | 0.024 | 34.5 | 32 |
| Embodiment 4 | 0.024 | 34.8 | 33 |
| Embodiment 5 | 0.023 | 35.0 | 35 |
| Comparative example 1 | 0.034 | 31.2 | 26 |
| Comparative example 2 | 0.035 | 31.5 | 25 |
| Comparative example 3 | 0.033 | 26.0 | 24 |
| Comparative example 4 | 0.032 | 29.7 | 25 |
| Comparative example 5 | 0.032 | 29.2 | 24 |
| Comparative example 6 | 0.037 | 31.4 | 26 |
| Comparative example 7 | 0.030 | 25.3 | 24 |
The data from table 1 are it is found that the thermal insulation material disclosed by the embodiments of the present invention for Cold Chain Logistics has more significantly
Heat insulation effect and more excellent mechanical mechanics property, and anti-flammability is more preferable, this is the result of each raw material synergistic effect.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (10)
1. a kind of thermal insulation material for Cold Chain Logistics, which is characterized in that each raw material including following parts by weight is made: N- ethylene
4-5 parts of base neighbour benzene imines, 2-4 parts of 2- vinyl -1H- benzimidazole, 2- vinyl -4,6- diaminostilbene, 3,5- triazine/end carboxylic
10-20 parts of based polyurethanes condensation polymer, 0.5-2 parts of allyl phenyl-pentafluoride, 0.5-2 parts of vinyltrimethoxysilane, foaming agent
0.5-1.5 parts, micro-and nano-particles 1-3 parts inorganic, triazine radical is bat 0.1-0.3 parts micro-nano, 0.4-0.7 parts of initiator.
2. a kind of thermal insulation material for Cold Chain Logistics according to claim 1, which is characterized in that the initiator is even
At least one of nitrogen bis-isobutyronitrile, azobisisoheptonitrile, benzoyl peroxide, methyl ethyl ketone peroxide；The foaming agent is ten
At least one of dialkyl sulfonates, sodium sulfate of polyethenoxy ether of fatty alcohol, sodium bicarbonate.
3. a kind of thermal insulation material for Cold Chain Logistics according to claim 1, which is characterized in that described inorganic micro-nano
Particle is magnesium hydroxide, calcium hydroxide, silica, magnalium hydrotalcite, zinc-aluminum hydrotalcite, montmorillonite, sepiolite, saponite, lithium
Any one or more of montmorillonite or clay.
4. a kind of thermal insulation material for Cold Chain Logistics according to claim 1, which is characterized in that the 2- vinyl-
4,6- diamino-1,3,5-triazines/ending carboxy polyurethane condensation polymer preparation method, includes the following steps: vinyl -4 2-,
6- diaminostilbene, 3,5- triazine, ending carboxy polyurethane, catalyst, 2- ethyoxyl -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline, resistance
Poly- agent, high boiling solvent are added in autoclave, and nitrogen or inert gas are filled with into autoclave, is warming up to 150-
170 DEG C, at pressure 1.0-1.5MPa maintain constant pressure carry out draining 1-3 hours, after be warming up to 230-240 DEG C, in 50-
It is carried out polycondensation reaction 8-12 hours under 100Pa, after reaction, is cooled to room temperature, is adjusted to normal pressure, settles out in water, use quality
The sodium hydroxide solution that score is 5-10% washs 2-4 times, then with ethanol washing product 3-5 times, ethyl alcohol is evaporated off in back spin, obtains
2- vinyl -4,6- diaminostilbene, 3,5- triazine/ending carboxy polyurethane condensation polymer.
5. a kind of thermal insulation material for Cold Chain Logistics according to claim 4, which is characterized in that the 2- vinyl-
4,6- diaminostilbene, 3,5- triazine, ending carboxy polyurethane, catalyst, 2- ethyoxyl -1- ethoxy carbonic acyl radical -1,2- dihydroquinoline,
Polymerization inhibitor, high boiling solvent mass ratio be 1:1:(0.2-0.4): 0.1:0.1:(6-10).
6. a kind of thermal insulation material for Cold Chain Logistics according to claim 4, which is characterized in that the polymerization inhibitor is four
At least one of chloranil, 1,4- naphthoquinones；The high boiling solvent is dimethyl sulfoxide, N,N-dimethylformamide, N- methyl
At least one of pyrrolidones, DMAC N,N' dimethyl acetamide；The inert gas is any one of helium, neon, argon gas.
7. a kind of thermal insulation material for Cold Chain Logistics according to claim 4, which is characterized in that the catalyst is benzene
At least one of phosphoric acid, benzene hypophosphorous acid, triphenyl phosphate, triphenyl phosphite.
8. a kind of thermal insulation material for Cold Chain Logistics according to claim 1, which is characterized in that the triazine radical micro-nano
The preparation method of rice bat, includes the following steps: diallyl isocyanuric acid, 2,2'- diallyl bisphenol and azo two is different
Butyronitrile is added in organic solvent, and in nitrogen atmosphere, under conditions of temperature is 75-85 DEG C, ultrasonic response 0.5-1h is then quiet
It sets 2-4 hours, is finally centrifugated, distilled water and ethyl alcohol is respectively adopted and carries out cleaning 3-5 times respectively to product, is placed on vacuum
Dried at 80-90 DEG C in drying box to constant weight, after obtain the micro-nano bat of triazine radical.
9. a kind of thermal insulation material for Cold Chain Logistics according to claim 8, which is characterized in that the organic solvent is
Cyclohexanone or dehydrated alcohol；The diallyl isocyanuric acid, 2,2'- diallyl bisphenol, azodiisobutyronitrile, You Jirong
The mass ratio of agent is (1-5): (3-8): (0.03-0.07): (75-95).
10. -9 described in any item a kind of thermal insulation materials for Cold Chain Logistics according to claim 1, which is characterized in that described
The preparation method of thermal insulation material for Cold Chain Logistics includes the following steps: to be mixed after mixing in proportion each raw material
Close material, then add mixture into and carry out melting extrusion in double screw extruder, after melt is transferred in foaming molding mold
Stand foaming demoulds after to be solidified, is finally 65-85 DEG C place the material in temperature, humidity is 8- in the hygrothermal environment of 45-55%
12 hours, obtain the thermal insulation material for being used for Cold Chain Logistics.
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