CN107043449A - A kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam - Google Patents
A kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam Download PDFInfo
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- CN107043449A CN107043449A CN201710219157.7A CN201710219157A CN107043449A CN 107043449 A CN107043449 A CN 107043449A CN 201710219157 A CN201710219157 A CN 201710219157A CN 107043449 A CN107043449 A CN 107043449A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- 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
- C08J9/12—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 physical blowing agent
- C08J9/125—Water, e.g. hydrated salts
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
-
- 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
-
- 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
- C08K2201/004—Additives being defined by their length
-
- 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
- C08K2201/011—Nanostructured additives
-
- 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
Abstract
The invention discloses a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam, including following technical step：Weigh a certain amount of CNT and mixed with polyether triol, by mixture ultrasonic disperse, produce homogeneous dispersion, mixing beaker is immersed in ± 1 DEG C of thermostat and carries out outside cooling；By mixed emulsion and organic isocyanate with mass ratio 5:2 ratio mixing is placed in beaker, and a certain amount of foaming agent, catalyst, foam stabilizer are added as needed, and 15~18s is stirred with 2500r/min speed using mechanical agitator；Pour the mixture into mould rapidly, allow its free responding, then be placed in 37.8 DEG C of solidification 24h in vacuum drying chamber；Carbon nano-polyurethane foamed material is obtained after the demoulding.The present invention adds CNT on the basis of original polyurethane foam, strengthens its mechanical performance, energy-absorbing effect is notable.
Description
Technical field
New material technology field of the present invention, is specifically designed a kind of preparation side of automobile-used carbon-nanotube enhanced polyurethane foam
Method.
Background technology
Polyurethane (Polyurethane) is the abbreviation according to carbamate, is by polyalcohol and polyisocyanates reaction system
Assembly with the polymer for repeating-NHCOO- groups on the class main chain obtained.It is different according to raw materials used functional group number purpose,
Linear structure or the high molecular polymer of three-dimensional-structure can be made.Because the structure of polymer is different, performance is also different.Profit
Use this property, polyurethane polymer can be respectively prepared from liquid to solid, from soft to the coating of hard, adhesive,
The polyurethane product of the various different performances such as plastics, fiber, rubber and type.
Lightweight is the development trend of auto industry, and the extensive application of high polymer material can not only realize the light weight of automobile
Change and energy-saving, but also dicoration, comfortableness, durability and the security of automobile, polyurethane material conduct can be improved
One of high polymer material is widely used in auto parts and components, except for automotive upholstery, exterior component, be additionally operable to system
Various structural members and functor are made, polyurethane has turned into the maximum plastic products of 3 kinds of consumptions on automobile with polypropylene, polyvinyl chloride
Kind.Global Auto manufacturing industry is to the usage amount of polyurethane more than 1,000,000 tons, and wherein polyurethane foam plastics accounts for 60%, foreign countries one
The consumption of general car is about 22kg or so.The conventional polyurethane product form of auto industry mainly has hard, semi-rigid, soft
Matter foam and polyurethane elastomer, adhesive, coating etc..
Flexible polyurethane foams have the features such as good toughness, compression set are small, resilience is fast, and its moulding process has bulk
Continuous working system and method for molding, method of molding have the disposable advantage that required product is directly made, wherein cold-curing foaming
Technology occupies leading position, and flexible polyurethane foams are widely used on automotive upholstery, such as seat cushion, back cushion, headrest, ceiling,
The products such as ground cushion, door-plate liner, sunshading board.The characteristics of semi-hard polyurethane foam plastic, is with higher compression load, dashes forward
The damping property gone out, is especially suitable for manufacturing the protection course of the parts such as fascia, handrail, door pillar.Hard polyaminoester
Foamed plastics has the performances such as heat-proof quality outstanding, intensity is high, good flame resistance, dimensionally stable, chemical-resistant resistance, is commonly used for luxurious
The insulation material of car and refrigerated vehicle carriage.
To sum up, more than the existing polyurethane foam applied on automobile with seldom with automobile load, energy absorbing component, and
The polyurethane foam of energy absorbing parts of automobiles, such as vehicle door interior trim panel and B posts patch are presently used in, energy-absorbing effect is unsatisfactory, institute
To be badly in need of developing a kind of new enhancing polyurethane foam, strengthen the mechanical performance of polyurethane foam, make on its more applicable automobile
Stress, use on energy absorbing component.
The present invention is
The content of the invention
The purpose of the present invention is that there is provided a kind of automobile-used carbon nanometer enhancing polyurethane foam for deficiency of the prior art
Preparation method, add CNT on the basis of original polyurethane foam, strengthen its mechanical performance, energy-absorbing effect shows
Write, and manufacturing process is simple, with low cost, energy-conserving and environment-protective, it is easy to mass production.
The purpose of the present invention is realized by following scheme：
A kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam, it is characterised in that including following technology step
Suddenly：
Step 1: weighing a certain amount of CNT and being mixed with polyether triol, mixture ultrasonic disperse is produced equal
Even dispersion, mixing beaker is immersed in ± 1 DEG C of thermostat and carries out outside cooling；
Step 2: by mixed emulsion made from step one and organic isocyanate with mass ratio 5:2 ratio mixing juxtaposition
In beaker, a certain amount of foaming agent, catalyst, foam stabilizer are added as needed, using mechanical agitator with 2500r/min speed
15~18s of degree stirring；
Step 3: pour the mixture into mould rapidly, allow its free responding, then be placed in vacuum drying chamber 37.8 DEG C it is solid
Change 24h；Carbon nano-polyurethane foamed material is obtained after the demoulding.
Further, the foaming agent used in the step 2 be water, catalyst by triethylenediamine, stannous octoate,
N-ethylmorpholine is constituted.
Further, the parts by weight of each raw material are：100 parts of polyether triol, 3.1 parts of water, triethylenediamine
0.06 part, 0.38 part of stannous octoate, 0.35 part of N-ethylmorpholine, 0.96 part of foam stabilizer, 40 parts of machine isocyanates, CNT
1.46~7.62 parts.
Further, a certain amount of crosslinking agent, age resistor, fire retardant and face can be also added in the step 2 as needed
Material.
Compared with prior art, the present invention has advantages below：
1. CNT is uniformly distributed in the polyurethane foam formed, the softness of polyurethane foam is not only maintained,
And every mechanical property all has and increases significantly that (compressive strength, modulus of compressibility, tensile strength, stretch modulus, bending are strong
Degree, bending modulus are all significantly increased)；
2. the present invention, which obtains CNT enhancing polyurethane foam, has fire resistance good, and its mass ratio is existing same
Material Deng energy absorption characteristics is small
3. manufacturing process is simple, with low cost, environmental protection, easily realizes batch production.
Brief description of the drawings
Fig. 1 is carbon nano tube polyurethane frostproof froth n process chart.
Fig. 2 is the carbon nano tube polyurethane foam of different weight percentage produced by the present invention；Wherein：1. steeped for conventional polyurethanes
Foam material；2. it is 1% polyurethane foamed material；3. it is 2% polyurethane foamed material；4. it is 3% polyurethane foamed material；5. it is
4% polyurethane foamed material；6. it is 5% polyurethane foamed material.
Fig. 3 is the load displacement curve of the foam exemplar of the CNT containing different weight percentage
Polyurethane foamed material tensile stress-strain that Fig. 4 is conventional polyurethanes foam and content of carbon nanotubes is 3%
Curve
The polyurethane foam material bending load-deformation curve that Fig. 5 steeps conventional polyurethanes foam and content of carbon nanotubes is 3%
Embodiment
The present invention will be described in further detail with reference to the following examples and checking, but it is to be understood that these descriptions
It is intended merely to further illustrate the features and advantages of the present invention, rather than limiting to the claimed invention.
A kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam, by following parts by weight raw material prepare and
Into：
Contrast scheme (the not sample of carbon nanotubes)：Polyether triol (100 parts), water (3.1 parts), triethylenediamine
(0.06 part), stannous octoate (0.38 part), N-ethylmorpholine (0.35 part), foam stabilizer L-520 (0.96 part), machine isocyanates
TDI100 (40 parts)
Carbon nano-polyurethane foamed material primary raw material and effect are as shown in table 1.
The carbon nano-polyurethane foamed material primary raw material of table 1 and effect
Embodiment one (content of carbon nanotubes is 1% sample)：Polyether triol (100 parts), water (3.1 parts), triethylene
Diamines (0.06 part), stannous octoate (0.38 part), N-ethylmorpholine (0.35 part), foam stabilizer L-520 (0.96 part), machine isocyanide
Acid esters TDI100 (40 parts), CNT (1.46 parts)
Embodiment two (content of carbon nanotubes is 2% sample)：Polyether triol (100 parts), water (3.1 parts), triethylene
Diamines (0.06 part), stannous octoate (0.38 part), N-ethylmorpholine (0.35 part), foam stabilizer L-520 (0.96 part), machine isocyanic acid
Ester TDI100 (40 parts), CNT (2.96 parts)
Embodiment three (content of carbon nanotubes is 3% exemplar sheet) polyether triol (100 parts), water (3.1 parts), triethylene
Diamines (0.06 part), stannous octoate (0.38 part), N-ethylmorpholine (0.35 part), foam stabilizer L-520 (0.96 part), machine isocyanic acid
Ester TDI100 (40 parts), CNT (4.48 parts)
Example IV (content of carbon nanotubes is 4% sample) polyether triol (100 parts), water (3.1 parts), triethylene two
Amine (0.06 part), stannous octoate (0.38 part), N-ethylmorpholine (0.35 part), foam stabilizer L-520 (0.96 part), machine isocyanates
TDI100 (40 parts), CNT (6.04 parts)
Embodiment five (content of carbon nanotubes is 5% sample) polyether triol (100 parts), water (3.1 parts), triethylene two
Amine (0.06 part), stannous octoate (0.38 part), N-ethylmorpholine (0.35 part), foam stabilizer L-520 (0.96 part), machine isocyanates
TDI100 (40 parts), CNT (7.62 parts)
Experiment is prepared in addition to needing some Conventional glass instruments, in addition it is also necessary to some experimental facilities, its major experimental equipment
As shown in table 2.
The major experimental equipment nomenclature of table 2
| Title | Model | Manufacturer |
| Electric blender | JB50-D types | Manufacturing Co., Ltd of Shanghai Sample Model Factory |
| Roberval's balance | JYT-1 types | Hubei Kechang Balance Instruments Co., Ltd. |
| Ultrasonic cleaner | KQ-500E types | Kunshan Ultrasonic Instruments Co., Ltd. |
| Vacuum drying chamber | DZF-6050 | Beijing Zhong Xing Instrument Ltd. |
| Omnipotent test machine for mechanism | CMT-6104 | Newly think carefully measurement technology Co., Ltd in Chengdu |
A kind of preparation process of the preparation method of automobile-used carbon-nanotube enhanced polyurethane foam is as follows：
A, measured CNT will be weighed in the balance mixed with polyether triol and (first add CNT, add polyethers three
Alcohol is mixed with), by mixture ultrasonic disperse 35min, produce homogeneous dispersion.In order to avoid the temperature of ultrasonically treated period
Rise, mixing beaker is immersed in about ± 1 DEG C of thermostat and carries out outside cooling.
B, mixed emulsion and machine isocyanates (TDI100) are with mass ratio 5:2 ratio mixing is placed in beaker, adds hair
Infusion (water), catalyst (triethylenediamine, stannous octoate, N-ethylmorpholine), foam stabilizer L-520 and then stirred using machinery
Mix device and 15s is stirred with 2500r/min speed.
C, pour the mixture into mould rapidly, allow its free responding, then be placed in 37.8 DEG C of solidifications in vacuum drying chamber
24h.Finally, it is stripped, produces required carbon nano-polyurethane foamed material.
The caliber of described CNT is 1~10nm, and pipe range is 20~100um, and purity grade is 98%.
Required water is the ultra-pure water by two grades of purifying, and the purity grade of additive is pure to analyze.
Experiment is compressed to above-mentioned obtained exemplar, as a result as shown in Figure 3, and experimental data is carried out to collect and comment
The energy absorption capability of valency foamed material, as shown in table 3.
The foam compresses result of table 3
| Foam sample | Average load (N) | Energy (J) | Lifting ratio (%) |
| Conventional polyurethanes | 96.4 | 11.0 | - |
| 1% carbon nano-polyurethane | 116.6 | 14.6 | 32.7 |
| 2% carbon nano-polyurethane | 125.5 | 15.6 | 41.8 |
| 3% carbon nano-polyurethane | 144.4 | 19.1 | 73.6 |
| 4% carbon nano-polyurethane | 107.3 | 12.5 | 13.6 |
| 5% carbon nano-polyurethane | 89.6 | 11.1 | 0.9 |
As can be seen that the addition of CNT causes the bearing capacity of polyurethane foam to be improved from accompanying drawing 3.Knot
Fruit shows that content of carbon nanotubes shows highest bearing capacity 144.4N for 3% polyurethane foam, content for 5% it is poly-
Urethane foam has minimum bearing capacity 89.6N, and less than the bearing capacity of conventional polyurethanes foam.
Because the CNT of 5% weight is added in polyurethane, particle is very more, and preparation condition is tested with us
Ultrasonic instrument, agitator and mixing time so that CNT uniformly can not be distributed in polyurethane, also cannot be with
Polyurethane is combined well, and so the bearing capacity to polyurethane does not have humidification.Obviously appropriate increase CNT exists
The original mechanical performance of foamed material can be increased in polyurethane foamed material.When comparing carbon nano-polyurethane foam and common poly- ammonia
During the energy absorption characteristics of ester foam, it is found that the addition of CNT can all make the original energy absorption capability of polyurethane foam
Increase.Content is 3% polyurethane foam, and energy absorption capability is compared to conventional polyurethanes foam lifting 73.6%, content
5% polyurethane foam, energy lift ratio is minimum, and only 0.9%.With reference to the above results analysis, when addition CNT
Content be 3% into polyurethane foam when, the carbon nano-polyurethane foamed material prepared by us has highest bearing capacity
With best energy absorption capability, and with excellent mechanical performance.
Next, 3% polyurethane foam and conventional polyurethanes foamed material to selection carry out tension test and at 3 points
Bend test, obtains the related mechanical property of foamed material stretching and bending.Tension test detailed rules and regulations are with reference to GB/T 6344-
2008《The measure of flexible foam polymeric material tensile strength and elongation at break》, foamed material is processed into master body, two
End is clamped with fixture, using 5KN force cell, and top fixture is moved with 2mm/min speed, until exemplar fracture, sample
The position of part fracture is in center or so.Computer record load-displacement curves are used, obtained curve is entered using correlation theory
Row analysis, as shown in Figure 5, obtains the load-deformation curve of 3% polyurethane foam and conventional polyurethanes foam.From stress-should
The slope of the initial linear portion of varied curve can calculate modulus of elasticity, and regard maximum stress when being broken as tensile strength.
Foamed material three point bending test is with reference to GB/T 8812-2007《The measure of rigid foam bending property》, mark
Quasi- sample piece design is the beam of rectangular cross section, and size is respectively long 80mm, wide 13mm, thickness 5mm.Exemplar is placed on fixture,
Loaded with pressure head, head velocity is set as 2mm/min.According to bending computational theory, the correlation of foamed material bending is calculated
Parameter, bending stress-strain curve of foamed material is as shown in Figure 5.
With reference to accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, the mechanical property to conventional polyurethanes foam and 3% polyurethane foam is divided
Analysis, correlation test result is as shown in table 3.2.As can be seen from the table, the performance of 3% polyurethane foam prepared by us is remote
It is much better than conventional polyurethanes foam, with higher intensity and modulus, compressive strength and modulus of compressibility improve 63.9% respectively
With 42.1%.The higher rigidity of carbon nano-polyurethane foam can be explained by using mixing rule, because CNT
Rigidity is higher, and the simple rule of mixing also can be higher by the rigidity for predicting nano composite material.Carbon nano-polyurethane foam
Higher-strength is attributable to the generation of multiple crack sites or multiple crackle branches, and this is due to that CNT is present in polymer
In, this delays the fracture process of nano composite material.Another reason for carbon nano-polyurethane foam has higher-strength be
Possess stronger interface, CNT has higher specific surface area, more preferable adhesion can be produced with polyurethane foam.Ultrasound
The stress field and polyurethane foam for causing carbon nano tube surface and surrounding after mixing produce very strong mechanical bond.
The foamed material result of the test of table 4
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to principles disclosed herein and features of novelty is consistent
Most wide scope.
Claims (10)
1. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam, it is characterised in that including following technical step：
Step 1: weighing a certain amount of CNT and being mixed with polyether triol, by mixture ultrasonic disperse, uniform point is produced
Granular media, mixing beaker is immersed in ± 1 DEG C of thermostat and carries out outside cooling；
Step 2: by mixed emulsion made from step one and organic isocyanate with mass ratio 5:2 ratio mixing is placed in burning
Cup, is added a certain amount of foaming agent, catalyst, foam stabilizer, is stirred using mechanical agitator with 2500r/min speed as needed
Mix 15~18s；
Step 3: pour the mixture into mould rapidly, its free responding is allowed, then be placed in 37.8 DEG C of solidifications in vacuum drying chamber
24h；Carbon nano-polyurethane foamed material is obtained after the demoulding.
2. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 1, it is characterised in that
The foaming agent used in the step 2 is water, and catalyst is made up of triethylenediamine, stannous octoate, N-ethylmorpholine.
3. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 2, it is characterised in that
The parts by weight of each raw material are：100 parts of polyether triol, 3.1 parts of water, 0.06 part of triethylenediamine, stannous octoate 0.38
Part, 0.35 part of N-ethylmorpholine, 0.96 part of foam stabilizer, 40 parts of machine isocyanates, 1.46~7.62 parts of CNT.
4. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 3, it is characterised in that
The weight fraction of carbon nanotubes is specially 1.46 parts.
5. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 3, it is characterised in that
The weight fraction of carbon nanotubes is specially 2.96 parts.
6. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 3, it is characterised in that
The weight fraction of carbon nanotubes is specially 4.48 parts.
7. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 3, it is characterised in that
The weight fraction of carbon nanotubes is specially 6.04 parts.
8. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 3, it is characterised in that
The weight fraction of carbon nanotubes is specially 7.62 parts.
9. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 3, it is characterised in that
The caliber of described CNT is 1~10nm, and pipe range is 20~100um, and purity grade is 98%.
10. a kind of preparation method of automobile-used carbon-nanotube enhanced polyurethane foam as claimed in claim 1, its feature exists
In a certain amount of crosslinking agent, age resistor, fire retardant and pigment can be also added in the step 2 as needed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438650A (en) * | 2018-10-16 | 2019-03-08 | 合肥工业大学 | A kind of high electromagnet shield effect material of high-strength light and preparation method thereof |
| CN113999515A (en) * | 2021-12-10 | 2022-02-01 | 南京经略复合材料有限公司 | Glass fiber reinforced polyurethane material, supporting beam and preparation process of supporting beam |
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