CN106221191A - A kind of synthetic method of the carbon fiber/compound polyurethane material for fan blade - Google Patents
A kind of synthetic method of the carbon fiber/compound polyurethane material for fan blade Download PDFInfo
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- CN106221191A CN106221191A CN201610511869.1A CN201610511869A CN106221191A CN 106221191 A CN106221191 A CN 106221191A CN 201610511869 A CN201610511869 A CN 201610511869A CN 106221191 A CN106221191 A CN 106221191A
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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
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
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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
- C08G18/4825—Polyethers containing two 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
- C08G18/28—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
- C08G18/4833—Polyethers containing oxyethylene units
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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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
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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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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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
- C08L2201/04—Antistatic
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Organic Chemistry (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A kind of synthetic method for the carbon fiber/compound polyurethane material of fan blade is to be synthesized the performed polymer of terminal isocyanate group by the polyether polyol being dehydrated in advance and di-isocyanate reaction, then adds diluent, stirs, obtains B component；By small molecule chain extender, catalyst and auxiliary agent mix homogeneously, obtain component A；By B component and component A mix homogeneously, sticking with paste mould pressing process or vacuum introducing technology by hands, make every layer of carbon fiber all can well infiltrate, then by molded curing molding, the demoulding, after cure obtains product.It is high that the present invention has intensity, good toughness, and fatigue resistance is good, corrosion-resistant, ultraviolet radiation resisting and the good advantage of anti-lightning strike performance.
Description
Technical field
The invention belongs to the synthetic method of a kind of carbon fiber/compound polyurethane material.Particularly belong to one can use
Synthetic method in the carbon fiber/compound polyurethane material preparing fan blade.
Background technology
Along with the conventional energy resource such as coal, oil supply growing tension in global range, and mankind's facing climate warming,
The difficult problem such as ecological disruption and environmental pollution, wind energy is most potentiality to be exploited in regenerative resource as a kind of environmental type energy
One of the energy.Fan blade is the critical component of wind generator system, its good design, reliable quality and superior property
The determiner that unit normal table runs can be to ensure that, be that wind power generating set obtains higher power coefficient and bigger warp
The basis of Ji benefit.Blade will long-term operation in the presence of a harsh environment, along with the maximization of Wind turbines develops, how to reduce leaf
How the density of sheet, have optimal fatigue resistance and mechanical performance, becomes the focus of current fan blade area research.
Modern large fan blade is essentially all to be made up of fiber-resin composite.Fibre reinforced materials and tree
Aliphatic radical body is the key raw material of composite.The mechanical property of composite, fatigue resistance, resistance to weather and machine-shaping
The selections of technique etc. are to determine blade bearing capacity, operation stability, Long Service Life and the master of every kilowatt hour energy cost
Want factor.Due to the working environment very severe of wind generator set blade, the most not only to bear each of complexity
Stress, still suffers from that sand grains washes away, ultraviolet irradiates, the effect of the environmental factors such as atmospheric oxidn and corrosion.Therefore to blade
The requirement [Li Chengliang etc., fiberglass/composite, 2008, (4): 49-52] of material, [Zhao Jiaxiang etc., fibrous composite,
2001,46 (3): 46-49] specifically include that 1. light specific gravity and there is optimal fatigue strength and mechanical performance, be amenable to storm wind etc.
Exceedingly odious condition and the test of random load, it is ensured that safe handling more than 10 years；2. cost is relatively low；3. the elasticity of blade, rotation
Inertia when turning and frequency of vibration characteristic curve etc. thereof can meet normal operation requirement, pass to the load of whole electricity generation system
Good stability；The most corrosion-resistant, ultraviolet radiation resisting and anti-lightning strike performance are good；5. maintenance cost is low.
Fibre reinforced materials mainly has glass fibre, basalt fibre, aramid fiber and carbon fiber etc..Matrix material is main
There are epoxy resin, epoxy vingl ester resin and unsaturated polyester (UP) etc..What fan blade use at present was more is glass fibre and ring
The composite of epoxy resins.And the price of wind-powered electricity generation and power of fan are inversely proportional to, power of fan is the biggest, and unit cost of electricity-generating is the lowest；
The length of blade then power with blower fan is directly proportional, and power of fan is the biggest, and blade is the longest.The average single-machine capacity in the world is at present
1MW, maximum single-machine capacity is 5MW.When length of blade increases, the extraction of the increase energy to be faster than of quality, because quality
Increase and cube being directly proportional of fan blade length, and square be directly proportional [Luo Yongkang etc., the electricity of the electric energy that blower fan produces and fan blade length
Net and clean energy resource, 2008,24 (5): 53-57].Simultaneously along with the increase of length of blade, the strength and stiffness to reinforcing material
Proposing new requirement etc. performance, glass fibre gradually shows aspect of performance not in large-scale composite material vane manufacturing
Foot.And the density of carbon fiber is less by about 30% than glass fibre, intensity big 40%, especially modulus are high 3～8 times.Large-scale blade is adopted
Its high-elastic lightweight can be given full play to fibre reinforced, fatigue resistance, vibration damping and the advantage such as anti-lightning strike.Shortcoming is that carbon is fine
Dimension is but expensive and poor with the wellability of matrix resin than glass fibre.Utilize high intensity and the high-modulus of carbon fiber, logical
Cross the design of rational blade construction, the thickness of reduction blade that can be suitable while satisfied application requires.So surpass when blade
After crossing certain size, due to [Blade Makes Turn that all decreases such as material usage, labour force, transport and installation costs
To Carbon [C] //Reinforced Plastics, 2002:16], carbon fiber blade is on the contrary than glass-fibre blade more just
Preferably.So the advantage of carbon fiber is large-scale blades.
The technique that Megawatt fan blade uses at present is mainly vacuum perfusion process, and the gel time of resin needs to meet
Technological requirement: if the time is oversize, it is impossible to meet production efficiency requirement；If the time is the shortest, then can not complete whole vacuum and fill
Note technique.Polyurethane is to be passed through by polyethers (or polyester) polyhydric alcohol, diisocyanate and little molecule diamidogen (or glycol) chain extender
Polyaddition reaction and high polymer containing multiple carbamate groups in the molecular structure that formed.Owing to its raw material selects
Wide ranges, synthesis technique and processing mode are various, therefore, can by design and its molecular structure of cutting, and select different
Processing technique is to meet different application requirements.Carbon-chain structure in polyurethane molecular structure also can have preferably with carbon fiber
Similar compatibility, carbamate groups and ether in polyurethane also can form hydrogen bonded with the polar group of carbon fiber surface
Thus with carbon fiber, there is good interface binding power.Contrasting with epoxy resin, polyurethane resin also has fabulous wearability
Can, the high intensity under high drawing, fatigue durability, water-fast, resistance to low temperature and shock resistance are good, low (the ＜ 1.10g/ of density
cm3), viscosity and the hardening time of its material can be arbitrarily regulated according to different machine-shaping modes.Fan blade surface at present
Coating has used polyurethane coating, but uses the fan blade of polyurethane resin have not been reported.
Summary of the invention
The invention provides one, to have intensity high, good toughness, and fatigue resistance is good, corrosion-resistant, ultraviolet radiation resisting and anti-
What thunderbolt performance was good is applicable to prepare the synthetic method of the carbon fiber/compound polyurethane material of fan blade.
The present invention selects polyether polyol and the reasonable compatibility of variety classes polyhydric alcohol, by conservative control isocyanates
Index, use prepolymer method synthesis fan blade performed polymer, then in the course of processing with a certain proportion of chain extender one
Mix homogeneously under fixed temperature, selection carbon cloth is as reinforcing material, and sticks with paste technique or vacuum introducing technology by hands and prepare
Fan blade composite.Polyether polyol can give, as soft section, water-fast, resistance to low temperature, the elasticity that fan blade is excellent
With impulse fatigue resistance energy.The hard section of isocyanates and small molecule chain extender composition then gives material stiffness, strength character and resistance to
Hot property.The viscosity of performed polymer can be reduced with satisfied different processing technique by adding appropriate diluent in performed polymer
Viscosity requirement, can meet fan blade to composite difference hardening time by adding appropriate catalyst in chain extender
Requirement；Giving composite rigidity with carbon cloth as reinforcing material and light-weighted the most also there is antistatic, lightning protection
The feature such as hit and be suitable to prepare large-scale blades, make the power of blower fan get a promotion and reach goal of the invention.
The demand of material is set about by the present invention from fan blade, for the existing material system in market, carries out joining of raw material
Fang Youhua, has invented the preparation method of a kind of carbon fiber/compound polyurethane material being applicable to prepare fan blade.
The present invention is to use the prepolymer method reasonable adjusting by formula and optimization, reaches improve processing technique and improve comprehensive
Close the purpose of performance.
Synthetic method of the present invention includes following three step:
(1), the synthesis (B component) of performed polymer: synthesized end by the polyether polyol being dehydrated in advance and di-isocyanate reaction
The performed polymer of NCO, then adds diluent, stirs, obtain B component；
(2), the preparation (component A) of chain extender: by small molecule chain extender, catalyst and auxiliary agent mix homogeneously, obtain A group
Point；
(3), by B component and component A mix homogeneously, stick with paste mould pressing process or vacuum introducing technology by hands, every layer of carbon fibre is made
Dimension all can well infiltrate, and then by molded curing molding, the demoulding, after cure obtains product.
In step (1), polyether polyol used is PTMEG, one or more in polyether triol, PTMEG bag
Including polytetramethylene ether diol (such as PTMG-1000, PTMG-2000), polyoxypropylene glycol is (such as PPG-400, PPG-
1000, PPG-2000, PPG-3000), polyether triol includes that [(degree of functionality is 3 to polyglycerol ether, and molecular weight is such as PPG-305
500), PPG-N330 (degree of functionality is 3, and molecular weight is 3000)] one or more, molecular weight ranges is 400～3000.Preferably
Molecular weight ranges 1000～2000.
Diisocyanate used by step (1) can be aromatic diisocyanate, or aliphatic diisocyanate.
Aromatic diisocyanate includes toluene di-isocyanate(TDI) (TDI), 4, and 4 '-methyl diphenylene diisocyanate (MDI), to benzene
Diisocyanate (PPDI), 1,5-naphthalene diisocyanate (NDI), 3,3 '-dimethyl-4,4 '-biphenyl diisocyanate (TODI)
One in Deng；Aliphatic diisocyanate includes 1, hexamethylene-diisocyanate (HDI), isophorone diisocyanate
(IPDI), HMDI (H12Etc. MDI) one in.Preferred fragrance (cyclo) aliphatic diisocyanates.Consider
To cost and technological factor, select TDI and MDI.
The dehydration of step (1) polyether polyol is warming up to 100～120 DEG C, and evacuation is dehydrated 2～3 hours, and vacuum is-
0.009～-0.095MPa.
Step (1) polyether polyol is 100:40～70 with the weight ratio of diisocyanate, preferably 100:50～60.Reaction
Temperature controls, at 60～100 DEG C, to be preferably controlled in 70～90 DEG C, and the response time is 1～5 hour, is preferably controlled in 2～3 hours.
The technical specification that should control in the reaction of this step is to analyze performed polymer-NCO content, and control-NCO content is in 8～15wt% scopes
In, in the range of being preferably controlled in 10～12wt%.
Diluent used by step (1) has trichloro ethylene or Allyl carbonate etc..Preferably Allyl carbonate.Its addition is
The 1～20wt% of B component total amount, preferably 5～15wt%.
Step (1) reaction is progressively polyaddition reaction, and response speed is moderate, and when starting to react, heat release is violent, but
After reaction certain time, liberated heat is not enough to maintain the temperature continuing reaction, it is therefore desirable to heating and thermal insulation.
Small molecule chain extender used in step (2) is one or more in glycol, diamidogen.Diamines includes 3,3 '-
Dichloro-4,4,4 '-diphenylmethanediamiand (MOCA), 3,5-dimethythiotoluene diamines (E-300), diethyl toluene diamine (E-
100), 4,4 '-diaminourea-3,3 ' diethyl-diphenyl methane (XYlink MOEA) or chloro-3 '-ethyl-4 of 3-, 4 '-diaminourea
Diphenyl-methane (ML-200) etc., glycols includes BDO (BDO), ethylene glycol (EG), diglycol (DEG), oneself
Double (beta-hydroxyethyl) ether (HQEE) of glycol (HG), 1,3-PD, neopentyl glycol (NPG) or hydroquinone.Preferably E-300 and 1,4-fourth
Glycol (BDO).
In step (2), used catalyst is for including triethylene diamine, triethylamine, stannous octoate (T-9), dilaurate two fourth
Ji Xi (T-12), zinc Isoocatanoate, isooctyl acid lead, potassium oleate, zinc naphthenate, cobalt naphthenate, ferric acetyl acetonade, phenylmercuric acetate, third
One in acid benzene hydrargyrum or organic carboxyl acid bismuth.Preferably organic carboxyl acid bismuth and phenylmercuric acetate.The addition of catalyst is component A amount
0.01～0.5wt%, preferably 0.1～0.2wt%.
Auxiliary agent in step (2), including antioxidant, UV absorbers and solvent.Antioxidant include 2,6-di-t-butyl-
4-cresol (antioxidant 264), 2,2 '-di-2-ethylhexylphosphine oxide (4-methyl-6-tert butyl phenol) (antioxidant 2246), four [3-3,5-bis-uncles
Butyl-4-hydroxy-phenylpropionic acid] pentaerythritol ester (antioxidant 1010), phosphorous acid hexichol one monooctyl ester (antioxidant ODP), phosphorous acid
Three (2,4-di-tert-butyl-phenyl) ester (irgasfos 168) or 3,5-di-t-butyl 4-hydroxybenzyl phosphate diethylester (antioxidant
1222) etc..Preferably antioxidant 264. its addition be A, B two component total amount 0.1～1wt%, preferably 0.2～0.5wt%.
UV absorbers in step (2) has benzophenone UV-24, UV-9 or UV-531 etc., and azimidobenzene class has
UV-P, UV-326, UV-327 or UV-328, etc..Preferably UV-P.Its addition be A, B two component total amount 0.01～
0.5wt%, preferably 0.05～0.1wt%.
Solvent in step (2) includes trichloro ethylene, acetone, butanone, ethyl acetate or butyl acetate etc., preferably three chloroethenes
Alkene.Content be A, B two component total amount 15～50wt%, preferably 20～30wt%.
The preparation of step (2) chain extender component (component A), is to be mixed by small molecule chain extender, catalyst and auxiliary agent,
Mixing temperature is room temperature；Incorporation time is 20～60min, preferably 30～40min.This process is physical mixing processes, and addition is urged
Agent is the reaction in order to be catalyzed the 3rd step, therefore mix homogeneously.
Step (3) the most at a certain temperature by A, B two component by metered proportions, under fast stirring mix homogeneously, will
The carbon cloth cut in advance and resin successively carry out laying and make carbon cloth well to infiltrate, or use vacuum suction
The resin of mix homogeneously is imported the carbon cloth of paved in multi-layers by technique；Curing molding at ambient temperature or elevated temperature, more at room temperature
After cure one week, obtains product.
Consumption between A, B component in step (3), the NCO metering that B component is pressed, component A press amine number and is measured, in the present invention
NCO/NH2Mol ratio be 1.0～1.2:1 (mol), preferably NCO/NH2Molar ratio be 1.05～1.15:1 (mol).
In step (3), mixing temperature when A, B component mixing is 50～90 DEG C, preferably 60～70 DEG C；Solidification temperature is room
Temperature or high temperature.The cold curing time is 30～150 minutes, preferably 60～120 minutes；Molding pressure 5～12MPa, during after cure
Between be 5～14 days, preferably 7～10 days.Hot setting temperature is 100～120 DEG C, and hardening time is 20～120 minutes, is preferably
30～60 minutes.Molding pressure 5～12MPa, preferably 8～10MPa.After cure temperature is 100～120 DEG C, and the after cure time is 8
～24 hours, preferably 12～16 hours.
In step (3), carbon cloth used can be T300, T700 and T800, it is contemplated that the preferred T300 of cost；By T300
It is made into band carbon cloth, can be 3K, 6K and 12K, it is contemplated that the preferred 3K of wellability.
In step (3), the content of carbon cloth controls 50～80wt%, preferably 65～75wt%.Prepared carbon is fine
Dimension/compound polyurethane material can meet the intensity required by wind electricity blade and modulus.
It is that carbon fibre fabric and resin are alternately layered on mould that hands in step (3) sticks with paste mould pressing process.
Vacuum introducing technology in step (3) is first to be laid in reinforcing materials such as fabrics in die cavity to carry out evacuation
Operation, now resin matrix is imported into die cavity with lay-up under the effect of vacuum pressure.
The present invention compared with prior art has the advantage that
1, premixed systems modest viscosity, good fluidity, ambient temperature curable, it is possible to hot setting, processing performance is good, can use hands
Stick with paste technique, it is possible to use vacuum suction technique.
2, for the blade of different length, formula adjustable extent width；
3, obtained composite machinery performance is good, and (Shao's A hardness is 95～98, elongation at break >=0.5%, and stretching is strong
Degree >=400.0MPa, elastic modelling quantity >=60.0GPa, compressive strength >=200MPa, tearing strength >=300KN/m), wind-powered electricity generation can be met
Intensity required by blade and modulus.
Detailed description of the invention
Polyether polyol used in following each embodiment is both needed at 120 DEG C and-0.09～-0.095MPa true before use
It is dehydrated under reciprocal of duty cycle 2 hours, then seals and save backup.
Sample geometry owing to making is simple, operates for convenience, and following each embodiment all uses hands to stick with paste stamper
Skill.
The testing standard of properties in following each embodiment:
(1) tensile property (hot strength, elongation at break, elastic modelling quantity), GB/T 528-1998；Tearing strength (KN/
M), GB/T 529-1999；Shore hardness (Shao A), GB/T 531-92；
(2) compressive strength: GB/T 7759-1996；
(3) at room temperature post curing surveys its performance in 1 week.
Embodiment 1
1, the synthesis of performed polymer (B1)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 100g
Take off water the most in advance and be preheated to the PPG-1000 of 60 DEG C, being stirring evenly and then adding into 50gTDI, and little 80 DEG C of insulation reaction 2
Time.Sample analysis NCO base content is 10.43%, is then cooled to 40 DEG C and adds 15.8g Allyl carbonate and stir, surveys
Viscosity under its room temperature is 560mPaS, seals and preserves, stand-by.
2, the preparation of chain extender (A1)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 38g
E-300,12g trichloro ethylene, 0.4g antioxidant 264,0.1gUV-P and 0.05g organic carboxyl acid bismuth catalyst, stirs 30min, surveys
Viscosity under its room temperature is 20mPaS, seals and preserves, stand-by.
3, the preparation (CFPU1) of carbon fiber/compound polyurethane material
In advance carbon cloth (T300,3K) is cut (180 × 180mm), above-mentioned B1 component is heated to 70 DEG C, one
In reaction vessel, add 50g B1 and 15.2g A1, quickly stir, use hands to stick with paste mould pressing process and be first the most uniformly coated with
One layer of resin material mixed, right later layer (or which floor) carbon cloth, one layer of resin, make carbon cloth fully soak with resin
Profit, gel point to be achieved, the demoulding, the most at room temperature after cure after the room temperature curing molding 120min that pressurizes on vulcanizing press
One week.It is as follows that CF content 65wt%. tests test piece physical property after at room temperature placing one week: hardness (ShoreA): 98；Pull apart elongation
Rate (%): 0.62；Hot strength (MPa): 330；Elastic modelling quantity (GPa): 58.4；Compressive strength (MPa): 220.4；Tearing strength
(KN/m): 262.4.
Embodiment 2
1, the synthesis of performed polymer (B2)
It is furnished with mechanical agitation, thermometer and N at one2In the there-necked flask that volume is 500ml imported and exported and at 80 DEG C
Insulation reaction 2 hours.Sample analysis NCO base content is 10.43%, is then cooled to 40 DEG C and adds 15.8g Allyl carbonate also
Stirring, surveying the viscosity under its room temperature is 560mPaS, seals and preserves, stand-by.
2, the preparation of chain extender (A2)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 38g
E-300,12g trichloro ethylene, 0.4g antioxidant 264,0.1gUV-P and 0.05g organic carboxyl acid bismuth catalyst, it is stirred at room temperature
About 30min, surveying the viscosity under its room temperature is 20mPaS, seals and preserves, stand-by.
3, the preparation (CFPU2) of carbon fiber/compound polyurethane material
In advance carbon cloth (T300,3K) is cut (180 × 180mm), above-mentioned B2 component is heated to 70 DEG C, one
In reaction vessel, add 50g B2 and 15.2g A2, quickly stir, use hands to stick with paste mould pressing process and be first the most uniformly coated with
One layer of resin material mixed, right later layer (or which floor) carbon cloth, one layer of resin, make carbon cloth fully soak with resin
Profit, gel point to be achieved, the demoulding after pressurized high-temperature curing molding 30min in 120 DEG C of compression molding agent, then at 100 DEG C
After cure 12h in baking oven, more at room temperature after cure one week.CF content is 78.3wt%
Test piece physical property is tested as follows: hardness (ShoreA): 98 after at room temperature placing one week；Elongation at break (%):
0.60；Hot strength (MPa): 420.7；Elastic modelling quantity (GPa): 62.5；Compressive strength (MPa): 340.87；Tearing strength (KN/
M): 364.8.
Embodiment 3
1, the synthesis of performed polymer (B3)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds
25gPPG-400 and 75gPPG-2000 (having taken off water the most in advance) is also preheated to 60 DEG C, is stirring evenly and then adding into 50gTDI, and
80 DEG C of insulation reaction 2 hours.Sample analysis NCO base content is 10.50%, is then cooled to 40 DEG C and adds 15.8g propylene carbonate
Ester also stirs, and surveying the viscosity under its room temperature is 320mPaS, seals and preserves, stand-by.
2, the preparation of chain extender (A3)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 12.2g
E-300,5g trichloro ethylene, 0.2g antioxidant 264,0.08gUV-P and 0.03g organic carboxyl acid bismuth catalyst, stir about 30min,
Surveying the viscosity under its room temperature is 25mPaS, seals and preserves, stand-by.
3, the preparation (CFPU3) of carbon fiber/compound polyurethane material
In advance carbon cloth (T300,6K) is cut (180 × 180mm), above-mentioned B3 component is heated to 60 DEG C, one
In reaction vessel, add 50g B3 and 17.51g A3, quickly stir, use hands to stick with paste mould pressing process, the most uniform
It is coated with one layer of resin material mixed, right later layer (or which floor) carbon cloth, one layer of resin, make carbon cloth fully soak with resin
Profit, gel point to be achieved, the demoulding, the most at room temperature after cure after the room temperature sulfidization molding 120min that pressurizes in compression molding agent
One week.CF content 70wt%.
Test piece physical property is tested as follows: hardness (ShoreA): 98 after at room temperature placing one week；Elongation at break (%):
1.02；Hot strength (MPa): 405；Elastic modelling quantity (GPa): 53.7；Compressive strength (MPa): 238.8；Tearing strength (KN/m):
308.3。
Embodiment 4
1, the synthesis of performed polymer (B4)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds
50gPPG-1000 and 50gPTMG-1000 (having taken off water the most in advance) is also preheated to 60 DEG C and is stirring evenly and then adding into 50gTDI, and
80 DEG C of insulation reaction 2 hours.Sample analysis NCO base content is 11.02%, is then cooled to 40 DEG C and adds 25g propylene carbonate
Ester also stirs, and surveying the viscosity under its room temperature is 480mPaS, seals and preserves, stand-by.
2, the preparation of chain extender (A4)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 38g
E-300,16g trichloro ethylene, 0.4g antioxidant 264,0.1gUV-P and 0.05g organic carboxyl acid bismuth catalyst, stir about 30min,
Surveying the viscosity under its room temperature is 18mPaS, seals and preserves, stand-by.
3, the preparation (CFPU4) of carbon fiber/compound polyurethane material
In advance carbon cloth (T300,3K) is cut (180 × 180mm), above-mentioned B4 component is heated to 60 DEG C, one
In reaction vessel, add 50g B4 and 19.2g A4, quickly stir, use hands to stick with paste mould pressing process, the most uniform
It is coated with one layer of resin material mixed, right later layer (or which floor) carbon cloth, one layer of resin, make carbon cloth fully soak with resin
Profit, gel point to be achieved, the demoulding after pressurized high-temperature curing molding 40min in 120 DEG C of compression molding agent, in 100 DEG C of baking ovens
After cure 16h, the most at room temperature after cure one week.CF content is 75.2wt%
Test piece physical property is tested as follows: hardness (ShoreA): 98 after at room temperature placing one week；Elongation at break (%):
0.65；Hot strength (MPa): 436.2；Elastic modelling quantity (GPa): 62.8；Compressive strength (MPa): 343.6；Tearing strength (KN/
M): 368.2.
Embodiment 5
1, the synthesis of performed polymer (B5)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 100g
Take off water the most in advance and be preheated to the PTMG-1000 of 60 DEG C, being stirring evenly and then adding into 50gTDI, and little 80 DEG C of insulation reaction 2
Time.Sample analysis NCO base content is 11.88%, is then cooled to 40 DEG C and adds 25g Allyl carbonate and stir, surveys it
Viscosity under room temperature is 620mPaS, seals and preserves, stand-by.
2, the preparation of chain extender (A5)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 38g
E-300,16g trichloro ethylene, 0.4g antioxidant 264,0.1gUV-P and 0.03g organic carboxyl acid bismuth catalyst, stir about 30min,
Surveying the viscosity under its room temperature is 18mPaS, seals and preserves, stand-by.
3, the preparation (CFPU5) of carbon fiber/compound polyurethane material
In advance carbon cloth (T300,3K) is cut (180 × 180mm), above-mentioned B5 component is heated to 80 DEG C, one
In reaction vessel, add 50g B5 and 20.63g A5, quickly stir, use hands to stick with paste mould pressing process, the most uniform
It is coated with one layer of resin material mixed, right later layer (or which floor) carbon cloth, one layer of resin, make carbon cloth fully soak with resin
Profit, gel point to be achieved, the demoulding after room temperature sulfidization molding 120min of pressurizeing in compression molding agent, the most at room temperature in after sulfur
Change one week.CF content 70wt%.
Test piece physical property is tested as follows: hardness (ShoreA): 98 after at room temperature placing one week；Elongation at break (%):
0.78；Hot strength (MPa): 425；Elastic modelling quantity (GPa): 60.3；Compressive strength (MPa): 350.7；Tearing strength (KN/m):
343.9。
Embodiment 6
1, the synthesis of performed polymer (B6)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds
20gPPG-305 and 80gPTMG-2000 (having taken off water the most in advance) is also preheated to 60 DEG C and is stirring evenly and then adding into 94.4gMDI, and
80 DEG C of insulation reaction 2 hours.Sample analysis NCO base content is 12.0%, is then cooled to 40 DEG C and adds 25g Allyl carbonate
And stir, surveying the viscosity under its room temperature is 620mPaS, seals and preserves, stand-by.
2, the preparation of chain extender (A6)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 8.54g
BDO, 4g trichloro ethylene, 0.15g antioxidant 264,0.05gUV-P and 0.02g phenylmercuric acetate catalyst, stir about
30min, surveying the viscosity under its room temperature is 6mPaS, seals and preserves, stand-by.
3, the preparation (CFPU6) of carbon fiber/compound polyurethane material
In advance carbon cloth (T300,3K) is cut (180 × 180mm), above-mentioned B6 component is heated to 60 DEG C, one
In reaction vessel, add 70g B6 and 12.76g A6, quickly stir, use hands to stick with paste mould pressing process, the most uniform
It is coated with one layer of resin material mixed, right later layer (or which floor) carbon cloth, one layer of resin, make carbon cloth fully soak with resin
Profit, gel point to be achieved, the demoulding after room temperature sulfidization molding 120min of pressurizeing in compression molding agent, the most at room temperature in after sulfur
Change one week.CF content is 73.6wt%
Test piece physical property is tested as follows: hardness (ShoreA): 98 after at room temperature placing one week；Elongation at break (%):
1.20；Hot strength (MPa): 412.2；Elastic modelling quantity (GPa): 56.8；Compressive strength (MPa): 248.6；Tearing strength (KN/
M): 342.7.
Embodiment 7
1, the synthesis of performed polymer (B7)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds
33.3gPPG-305 and 100gPPG-3000 (having taken off water the most in advance) is also preheated to 60 DEG C and is stirring evenly and then adding into 70.2gTDI,
And 80 DEG C of insulation reaction 2 hours.Sample analysis NCO base content is 12.0%, is then cooled to 40 DEG C and adds 25g propylene carbonate
Ester also stirs, and surveying the viscosity under its room temperature is 420mPaS, seals and preserves, stand-by.
2, the preparation of chain extender (A7)
Chain extender (A7) preparation is prepared with the chain extender (A5) of embodiment five.
3, the preparation (CFPU7) of carbon fiber/compound polyurethane material
In advance carbon cloth (T300,3K) is cut (180 × 180mm), above-mentioned B6 component is heated to 60 DEG C, one
In reaction vessel, add 50g B7 and 20.8g A7, quickly stir, use hands to stick with paste mould pressing process, the most uniform
It is coated with one layer of resin material mixed, right later layer (or which floor) carbon cloth, one layer of resin, make carbon cloth fully soak with resin
Profit, gel point to be achieved, the demoulding after room temperature sulfidization molding 120min of pressurizeing in compression molding agent, the most at room temperature in after sulfur
Change one week.CF content is 68.5wt%
Test piece physical property is tested as follows: hardness (ShoreA): 98 after at room temperature placing one week；Elongation at break (%):
1.50；Hot strength (MPa): 358.2；Elastic modelling quantity (GPa): 57.6；Compressive strength (MPa): 237.2；Tearing strength (KN/
M): 251.7.
Embodiment 8
1, the synthesis of performed polymer (B8)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds
33.3gPPG-400 and 100gPPG-N330 (having taken off water the most in advance) is also preheated to 60 DEG C and is stirring evenly and then adding into 94.4gMDI,
And 80 DEG C of insulation reaction 2 hours.Sample analysis NCO base content is 10.0%, is then cooled to 40 DEG C and adds 25g propylene carbonate
Ester also stirs, and surveying the viscosity under its room temperature is 386mPaS, seals and preserves, stand-by.
2, the preparation of chain extender (A8)
It is furnished with mechanical agitation, thermometer and N at one2The there-necked flask that volume is 500ml imported and exported adds 20g
MOCA, 15g acetone, 0.15g antioxidant 264,0.04gUV-P and 0.04g phenylmercuric acetate catalyst, stir about 30min, surveys its room
Viscosity under Wen is 10mPaS, seals and preserves, stand-by.
3, the preparation (CFPU8) of carbon fiber/compound polyurethane material
In advance carbon cloth (T300,3K) is cut (180 × 180mm), above-mentioned B6 component is heated to 60 DEG C, one
In reaction vessel, add 50g B8 and 26.6g A8, quickly stir, use hands to stick with paste mould pressing process, the most uniform
It is coated with one layer of resin material mixed, right later layer (or which floor) carbon cloth, one layer of resin, make carbon cloth fully soak with resin
Profit, gel point to be achieved, the demoulding after room temperature sulfidization molding 120min of pressurizeing in compression molding agent, the most at room temperature in after sulfur
Change one week.CF content is 72.1wt%
Test piece physical property is tested as follows: hardness (ShoreA): 98 after at room temperature placing one week；Elongation at break (%):
0.80；Hot strength (MPa): 365.2；Elastic modelling quantity (GPa): 60.8；Compressive strength (MPa): 281.6；Tearing strength (KN/
M): 242.3.
Claims (48)
1. the synthetic method for the carbon fiber/compound polyurethane material of fan blade, it is characterised in that include walking as follows
Rapid:
(1), the synthesis of performed polymer: synthesized terminal isocyanate group by the polyether polyol being dehydrated in advance and di-isocyanate reaction
Performed polymer, then adds diluent, stirs, obtain B component；
(2), the preparation of chain extender: by small molecule chain extender, catalyst and auxiliary agent mix homogeneously, obtain component A；
(3), by B component and component A mix homogeneously, stick with paste mould pressing process or vacuum introducing technology by hands, make every layer of carbon fiber equal
Can well infiltrate, then by molded curing molding, the demoulding, after cure obtains product.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade, it is special
Levy and be that polyether polyol is PTMEG, one or more in polyether triol.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade, it is special
Levy and be that the molecular weight ranges of PTMEG or polyether triol is 400～3000.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade, it is special
Levy and be that the molecular weight ranges of PTMEG or polyether triol is 1000～2000.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade, it is special
Levy and be that PTMEG includes polytetramethylene ether diol or polyoxypropylene glycol.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade, it is special
Levy and be that polytetramethylene ether diol is PTMG-1000 or PTMG-2000；Polyoxypropylene glycol is PPG-400, PPG-
1000, PPG-2000 or PPG-3000.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade, it is special
Levy and be that polyether triol includes polyglycerol ether.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade, it is special
Levy and be that polyglycerol ether is PPG-305, one or more in PPG-N330.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade, it is special
Levy and be that the diisocyanate used by step (1) is aromatic diisocyanate, or aliphatic diisocyanate.
A kind of synthetic method of the carbon fiber/compound polyurethane material for fan blade, its
It is characterised by that aromatic diisocyanate includes toluene di-isocyanate(TDI), 4,4 '-methyl diphenylene diisocyanate, to benzene two
Isocyanates, 1,5-naphthalene diisocyanate, 3,3 '-dimethyl-4, the one in 4 '-biphenyl diisocyanate.
The synthetic method of a kind of carbon fiber/compound polyurethane material for fan blade of 11. first,
It is characterized in that aromatic diisocyanate is toluene di-isocyanate(TDI) or 4,4 '-methyl diphenylene diisocyanate.
The synthetic method of 12. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that aliphatic diisocyanate includes 1, hexamethylene-diisocyanate, isophorone diisocyanate, 4,4 '-two hexamethylenes
One in dicyclohexylmethane diisocyanate.
The synthetic method of 13. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Being characterised by that the dehydration of step (1) polyether polyol is warming up to 100～120 DEG C, evacuation is dehydrated 2～3 hours, and vacuum is-
0.009～-0.095MPa.
The synthetic method of 14. a kind of carbon fiber/compound polyurethane materials for fan blade, its
The weight ratio being characterised by step (1) polyether polyol and diisocyanate is 100:40～70, reaction temperature control 60～
100 DEG C, the response time is 1～5 hour, and the technical specification that should control in the reaction of this step is to analyze performed polymer-NCO content, control
System-NCO content is in the range of 8～15 wt%, in the range of being preferably controlled in 10～12 wt%.
The synthetic method of 15. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that the weight ratio of step (1) polyether polyol and diisocyanate is 100:50～6 reaction temperatures control 70～90
DEG C, the response time is 2～3 hours.
The synthetic method of 16. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by the technical specification that should control in the reaction of step (1) polyether polyol and diisocyanate be analyze performed polymer-
NCO content, control-NCO content is in the range of 8～15 wt%.
The synthetic method of 17. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by the technical specification that should control in the reaction of step (1) polyether polyol and diisocyanate be analyze performed polymer-
NCO content, controls in the range of 10～12 wt%.
The synthetic method of 18. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by that the diluent used by step (1) has trichloro ethylene or Allyl carbonate, its addition be B component total amount 1～
20wt%。
The synthetic method of 19. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Being characterised by that the diluent used by step (1) has Allyl carbonate, its addition is the 5～15wt% of B component total amount.
The synthetic method of 20. a kind of carbon fiber/compound polyurethane materials for fan blade, its
The small molecule chain extender being characterised by step (2) used is one or more in glycol, diamidogen.
The synthetic method of 21. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that Diamines includes 3,3 '-dichloro-4,4,4 '-diphenylmethanediamiand, 3,5-dimethythiotoluene diamine, diethyl first
Phenylenediamine, 4,4 '-diaminourea-3,3 ' diethyl-diphenyl methane or the chloro-3 '-ethyl-4,4 of 3-'-MDA.
The synthetic method of 22. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that Diamines is 3,5-dimethythiotoluene diamine.
The synthetic method of 23. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by glycols include 1,4-butanediol, ethylene glycol, diglycol, hexanediol, 1,3-propylene glycol, neopentyl glycol or
Double (beta-hydroxyethyl) ether (HQEE) of hydroquinone.
The synthetic method of 24. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that glycols is 1,4-butanediol.
The synthetic method of 25. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by step (2) used catalyst for include triethylene diamine, triethylamine, stannous octoate, dibutyl tin dilaurate,
Zinc Isoocatanoate, isooctyl acid lead, potassium oleate, zinc naphthenate, cobalt naphthenate, ferric acetyl acetonade, phenylmercuric acetate, phenylmercuric propionate or organic
One in bismuth carboxylate, the addition of catalyst is the 0.01～0.5wt% of component A amount.
The synthetic method of 26. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Being characterised by step (2) that used catalyst is organic carboxyl acid bismuth or phenylmercuric acetate, the addition of catalyst is component A amount
0.1～0.2wt%.
The synthetic method of 27. a kind of carbon fiber/compound polyurethane materials for fan blade, its
The auxiliary agent being characterised by step (2) includes antioxidant, UV absorbers and solvent.
The synthetic method of 28. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that antioxidant includes 2,6-di-t-butyl-4-cresol, 2,2 '-di-2-ethylhexylphosphine oxide (4-methyl-6-tert butyl phenol), four [3-
3,5-di-tert-butyl-hydroxy phenyl propanoic acid] pentaerythritol ester, phosphorous acid hexichol one monooctyl ester, tricresyl phosphite (2,4-di-t-butyl
Phenyl) ester or 3,5-di-t-butyl 4-hydroxybenzyl phosphate diethylester, its addition be A, B two component total amount 0.1～1wt%.
The synthetic method of 29. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that antioxidant includes 2,6-di-t-butyl-4-cresol.
The synthetic method of 30. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by the addition of antioxidant be A, B two component total amount 0.2～0.5wt%.
The synthetic method of 31. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by that UV absorbers has benzophenone or azimidobenzene class, its addition be A, B two component total amount 0.01～
0.5wt%。
The synthetic method of 32. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Being characterised by that benzophenone is UV-24, UV-9 or UV-531, azimidobenzene class is UV-P, UV-326, UV-327 or UV-
328。
The synthetic method of 33. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by the addition of UV absorbers be A, B two component total amount 0.05～0.1wt%.
The synthetic method of 34. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Being characterised by that solvent includes trichloro ethylene, acetone, butanone, ethyl acetate or butyl acetate, its content is A, B two component total amount
15～50wt%.
The synthetic method of 35. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that solvent is trichloro ethylene.
The synthetic method of 36. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Be characterised by the addition of solvent be A, B two component total amount 20～30wt%.
The synthetic method of 37. a kind of carbon fiber/compound polyurethane materials for fan blade, its
The preparation being characterised by step (2) chain extender component (component A) is to be mixed by small molecule chain extender, catalyst and auxiliary agent,
Mixing temperature is room temperature；Incorporation time is 20～60min.
The synthetic method of 38. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that incorporation time is 30～40min.
The synthetic method of 39. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Being characterised by the consumption between A, B component in step (3), the NCO metering that B component is pressed, component A presses amine number metering, NCO/NH2
Mol ratio be 1.0～1.2:1.
The synthetic method of 40. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by NCO/NH2Molar ratio be 1.05～1.15:1.
The synthetic method of 41. a kind of carbon fiber/compound polyurethane materials for fan blade, its
Being characterised by that mixing temperature when A in step (3), B component mix is 50～90 DEG C, solidification temperature is room temperature or high temperature, works as room
During temperature solidification, hardening time is 30～150 minutes, molding pressure 5～12MPa, and cure time is 5～14 days；Work as hot setting
Time, solidification temperature is 100～120 DEG C, and hardening time is 20～120 minutes；Molding pressure 5～12MPa, curing temperature is 100
～120 DEG C, cure time is 8～24 hours.
The synthetic method of 42. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that mixing temperature when A in step (3), B component mix is 60～70 DEG C；When cold curing, hardening time is 60
～120 minutes, molding pressure 8～10MPa, cure time is 7～10 days；When hot setting, solidification temperature is 100～120
DEG C, hardening time is 30～60 minutes, molding pressure 8～10MPa, and after cure temperature is 100～120 DEG C, and the after cure time is
12～16 hours.
The synthetic method of 43. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by step (3) that carbon cloth used is that T300, T700 or T800 are made into carbon cloth.
The synthetic method of 44. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by step (3) that carbon cloth used is that T300 is made into band carbon cloth.
The synthetic method of 45. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that T300 is 3K, 6K or 12K.
The synthetic method of 46. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by that T300 is 3K.
The synthetic method of 47. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by step (3) that the content of carbon cloth controls 50～80wt%,.
The synthetic method of 48. a kind of carbon fiber/compound polyurethane materials for fan blade, its
It is characterised by step (3) that the content of carbon cloth controls 65～75wt%.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020024538A1 (en) * | 2018-08-03 | 2020-02-06 | 山东一诺威聚氨酯股份有限公司 | Method for preparing polyurethane elastomer with high transparency and high elasticity |
| CN110922554A (en) * | 2018-09-20 | 2020-03-27 | 万华化学（北京）有限公司 | Use of a polyurethane composition in a VARTM or HPRTM process, polyurethane composition and composite material prepared thereof |
| CN111040114A (en) * | 2019-12-27 | 2020-04-21 | 鸿羽腾风材料科技有限公司 | Polyurethane composition for carbon fiber RTM (resin transfer molding) process |
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| CN110922554A (en) * | 2018-09-20 | 2020-03-27 | 万华化学（北京）有限公司 | Use of a polyurethane composition in a VARTM or HPRTM process, polyurethane composition and composite material prepared thereof |
| CN111040114A (en) * | 2019-12-27 | 2020-04-21 | 鸿羽腾风材料科技有限公司 | Polyurethane composition for carbon fiber RTM (resin transfer molding) process |
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