CN106380577A - Preparation method of vehicle air conditioner DCPD composite material pedestals - Google Patents
Preparation method of vehicle air conditioner DCPD composite material pedestals Download PDFInfo
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- CN106380577A CN106380577A CN201610784593.4A CN201610784593A CN106380577A CN 106380577 A CN106380577 A CN 106380577A CN 201610784593 A CN201610784593 A CN 201610784593A CN 106380577 A CN106380577 A CN 106380577A
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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
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
- C08G61/04—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
- C08G61/06—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds
- C08G61/08—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
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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
- 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
- C08K7/14—Glass
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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
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/11—Homopolymers
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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
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/33—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain
- C08G2261/332—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain containing only carbon atoms
- C08G2261/3325—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain containing only carbon atoms derived from other polycyclic systems
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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
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/40—Polymerisation processes
- C08G2261/41—Organometallic coupling reactions
- C08G2261/418—Ring opening metathesis polymerisation [ROMP]
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to vehicle air conditioner accessories, and in particular, relates to a preparation method of vehicle air conditioner DCPD composite material pedestals, wherein the preparation method comprises the following steps: (1) mixing evenly components of an A material in a protective atmosphere; mixing evenly components of a B material in a protective atmosphere; and keeping the temperatures of the A material and the B material both be 15-25 DEG C; (2) metering and sending the A material and the B material into a mixing chamber by a high-pressure pump, wherein the A material and the B material enter the mixing chamber according to the mass ratio of A:B=0.5-1.5; (3) allowing the A material and the B material to enter the mixing chamber and mixing for 2-5 s; (4) then filling a mold cavity of a molding mold with the mixture, and molding; and (5) demoulding after molding. The prepared vehicle air conditioner DCPD composite material pedestals provided by the invention have excellent properties of heat resistance, acid and alkali resistance, friction resistance and the like, have good insulation, and can be applied in production of vehicle air conditioner pedestals including automobile air conditioner pedestals, train air conditioner pedestals, subway air conditioner pedestals and the like.
Description
Technical field
The present invention relates to car air-conditioner adnexa is and in particular to a kind of preparation side of car air-conditioner DCPD composite pedestal
Method.
Background technology
The pedestal of car air-conditioner adopts glass-reinforced plastic material in the market.Fiberglass scientific name fiberglass reinforced plastics, custom
Claim FRP (Fiber Reinforced Plastics), i.e. fibre-reinforced plastics.Fibre reinforced composites are by strengthening
Fiber and matrix composition.Fiber difference according to adopting is divided into glass fiber reinforced composite plastics (GFRP), and fibre reinforced is multiple
Close plastics (CFRP), boron fibre strengthens composite plastic etc..It is to be made with glass fibre and its product (glass cloth, band, felt, yarn etc.)
For reinforcing material, make a kind of composite of matrix material with synthetic resin.The diameter very little of fiber (or whisker), typically 10
Below μm, within breaking strain is about 30/1000ths, it is fragile material, easy damaged, fracture and corroded.Matrix phase for
For fiber, intensity, modulus will be much lower, but can withstand big strain, often have viscoelasticity and elastoplasticity, are tough
Property material.So its composite is a kind of wide variety of industrial materials, it is usually used in replacing carbon steel, rustless steel, timber, coloured
The materials such as metal.Fiberglass is good anticorrosive material, to the acid of big gas and water and general concentration, alkali, salt and multiple oils and
Solvent has preferable resistivity, and also is a kind of excellent insulant, for manufacturing insulator, meanwhile, its heat
Conductance is low, is 1.25～1.67kJ/ (m h K), only the 1/100～1/1000 of metal, is excellent heat insulating material under room temperature
Material.Based on these advantages, adopt fiberglass as manufacture material so the cover plate of air conditioning for automobiles and pedestal are now all first-selected, substitute
Conventional metal cover board and metal base, but the particularity due to vehicle structure, the compressor of automobile especially bus air conditioner is past
Toward the top being arranged on automobile, fiberglass is easily damaged, and the density of fiberglass is larger, with the bus of 45 is
Example, the weight one of the cover plate of its car air-conditioner and pedestal has 120～150Kg, along with compressor set, whole air-conditioning
The gross weight of system is substantially all in more than 300Kg, the even up to 400Kg having about, up to three or four hundred kilograms of load, no
Increased the energy consumption of automobile in shape, be unfavorable for energy-conserving and environment-protective.In addition, manufacture cover plate and the bottom of car air-conditioner using fiberglass
Seat, because cover plate and base broadly fall into erose part, needs during its making with manually by one layer of base material, one layer of enhancing
Fiber, another layer base material, one layer of reinforcing fiber, so repeatedly to coat, finally obtain the glass steel part idiosome of required form,
Then also need to insolation in the sun 4～6 hours, or in 100 DEG C of oven for baking 2～4 hours, this glass-reinforced plastic material
In the manufacture of car air-conditioner cover plate and pedestal, inefficiency, the cover plate of an air conditioning for automobiles and pedestal substantially need 4 hours
More than, its low production efficiency, and most of work completed using manpower, high cost.
Content of the invention
For overcoming existing glass-reinforced plastic material preparing the disadvantages mentioned above in car air-conditioner cover plate and pedestal, the present invention provides one
Plant the preparation method of new car air-conditioner DCPD composite pedestal, its scheme comprises the steps：
(1) mix homogeneously under protective gas atmosphere of the component in A being expected；The component that B is expected is also mixed under protective gas atmosphere
Close uniformly；A material is kept to be all 15～25 DEG C with the temperature of B material；
(2) A material and B material are sent into mixing chamber through high pressure pump-metered, wherein A material and B expect A in mass ratio：B=0.5～1.5
Ratio enter mixing chamber；
(3) A, B material enters mixing chamber and mixes 2～5 seconds；
(4) and then by compound it is filled with molding in the die cavity of mould；
(5) demoulding after molding.
Preferably, on the basis of such scheme, described mould is formwork erection.
Preferably, on the basis of such scheme, in step (1), the temperature of A material and B material is all 18～22 DEG C.
Preferably, on the basis of such scheme, step (2) A material and B expect A in mass ratio：The ratio of B=0.8～1.2 is entered
Enter mixing chamber.
Preferably, on the basis of such scheme, step (2) A material and B expect A in mass ratio：B=1：1 ratio enters mixing
Room.
Preferably, on the basis of such scheme, step (3) mixing chamber incorporation time is 3～4 seconds.
Preferably, on the basis of such scheme, the time that compound is filled with mould is control 15 by described step (4)
It is full of die cavity within～20 seconds.
Preferably, on the basis of such scheme, the time that compound is filled with mould is control 17 by described step (4)
It is full of die cavity within～18 seconds.
Preferably, on the basis of such scheme, described A material includes the component of following weight：DCPD85～98 part,
1～8 part of catalyst.The wherein preferred tungsten hexachloride of catalyst, simple substance tungsten or manganous acid lithium.
Preferably, on the basis of such scheme, described B material includes the component of following weight：DCPD85～98 part,
2～10 parts of activator.Activator is more preferably one or more of alkyl aluminum, toluene, 2,6- di-tert-butyl-4-methy phenol
Mixture.
Preferably, on the basis of such scheme,
A material also includes the component of following weight：85～98 parts of DCPD, 1～8 part of catalyst, stabilizer 0.1～4
Part, 0.1～4 part of additive；
B material also includes the component of following weight：85～98 parts of DCPD, 5～10 parts of activator, regulator 0.5～
5 parts.
Preferably, on the basis of such scheme, described stabilizer is alkene soil stabilizer.
Preferably, on the basis of such scheme, described additive is one of glass fibre, carbon fiber, aramid fiber
Or several mixture.
Preferably, on the basis of such scheme, described activator is alkyl aluminum, toluene, 2,6- di-t-butyl -4- methylbenzene
The mixture of one or more of phenol.
Preferably, on the basis of such scheme, described regulator is the mixed of one or more of benzophenone, petroleum ether
Compound.
Car air-conditioner out prepared by the preparation method of car air-conditioner DCPD composite pedestal provided by the present invention
Pedestal, has the heat-resisting, premium properties such as acid and alkali-resistance, friction resistant, and has good insulating properties, this preparation scheme can be applicable to
Make the pedestal of car air-conditioner, including pedestal used for automobile air conditioning, train air-conditioning pedestal, Metro Air conditioner pedestal etc..
DCPD is the abbreviation of dicyclopentadiene (Dicyclopentadiene), and molecular formula is C10H12, molecular weight 132, melts
32 DEG C of point, 170 DEG C of boiling point, is colourless or weak yellow liquid under room temperature.DCPD has excellent physical property, is a kind of excellent
Engineering plastics, are widely used for producing bumper, mud guard, spoiler, steering wheel, instrument at present in the automotive industry
Disk case, luggage Xiang Gai, lamp socket, tyre gaiter etc..But be because that car air-conditioner spot temperature is higher, and insulating properties are had will
Ask, simultaneously as exposed, in roof, to stress and sun-proof, acid and alkali-resistance all has higher requirements, thus, industry personage think always
DCPD is not appropriate for the pedestal for car air-conditioner, generally believes that fiberglass is only optimal material.
The present invention adopts new scheme, using DCPD composite come as car air-conditioner pedestal, using the side of the present invention
Case, can be obtained car air-conditioner pedestal with disposal molding, prior art prepares car air-conditioner pedestal using glass-reinforced plastic material, each
Block pedestal, at least needs more than 6 hours, and the solution of the present invention, from being fed to formed product, take less than 15 minutes, with public affairs
Altogether as a example 45 bus of transport, prior art loads such car air-conditioner, generally requires the daylong time, thus
Delay transport, cause the wasting of resources.And adopting the solution of the present invention, such bus, from driving installation into installation
Finish, whole process only needs 45 minutes, substantially increases efficiency, has saved social resources.Secondly, the base obtained by the present invention program
Seat, material light durable, the car air-conditioner pedestal of 45 bus is only 25～30 kilograms, and fiberglass pedestal weighs 70
～100 kilograms, the pedestal of the present invention alleviates the load of car, such that it is able to save the oil consumption of car, has saved the energy.In addition, this
The formula materials of invention can make car air-conditioner pedestal using formwork erection, because DCPD composite reacts in preparation process
Comparatively fast, therefore, existing DCPD composite industry preparation is all in the form of transverse mode, because formwork erection holds in mold filling process
Be easily caused the phenomenon having mold filling to be discontented with outlying corner, the formula of the present invention can mold filling completely effectively, overcome existing
The defect that in formwork erection manufacture process, mold filling is discontented with.
A, B material, in implementation process, is first prepared by the present invention in mass ratio, then mixes mold filling, the demoulding after solidifying and setting
Obtain final product.Under the catalysis of catalyst, there is polyreaction, poly bis ring penta obtained by ring-opening metathesis polymerization in the DCPD in A, B material
Diene, also can add additive such as glass fibre, carbon fiber etc., and these fibers can add the performance changing polymeric material, increase
Plus the intensity of material.It is highly preferred that for ensureing that product has more dominance energy, in charging, control material temperature is 2 DEG C of 20 scholar, and A, B expect
Flow-control is A：B=0.5～1.5, incorporation time is 3 scholar 2 seconds；During mold filling, former mould temperature is 3 DEG C of 60 scholar, and formpiston mould temperature is
50 3 DEG C of scholars, during mold filling, injection pressure is 50 scholar 5bar, and mould-filling time is 17 scholar 2 seconds.
The feature of reaction injection molding mold filling of the present invention be the filling mold speed of feed liquid quickly, require the viscosity of stock solution for this not
Can be very high, the compound of too high viscosity is difficult to flow at high speed.But the too low compound of viscosity also can bring a series of fiber crops to mold filling
Tired:One is that compound is easily revealed along mold parting surface and entered air discharge duct, thus causing difficulty to die venting；Two is stream
Air may be carried secretly and enter die cavity, unstable mold filling when serious, can be caused；Three is so that chemical reaction is aggravated, within a very short time
Produce substantial amounts of reaction heat, react thermally-induced temperature rise, the lighter increases the shrinkage factor of product, severe one can lead to material thermal degradation；Four
It is to cause solids precipitating in flowing in compound, be unfavorable for keeping quality of item；So by research, feed liquid viscous
Degree is preferably A and expects 330 scholar 50MPas, and B expects 330 scholar 50MPas.
Specific embodiment
It is exemplified below some preferred embodiments of the present invention, to help further understanding the present invention, but the protection of the present invention
Scope is not limited thereto.
Embodiment 1
The raw material weight proportioning of soup processed of car air-conditioner pedestal composite is as follows：
| A expects | DCPD 94% | Tungsten hexachloride 6% |
| B expects | DCPD 92% | Triethyl aluminum 8% |
The preparation of car air-conditioner pedestal：
(1) mix homogeneously under nitrogen atmosphere of the component in A being expected；The component that B is expected also mixes all under nitrogen atmosphere
Even；A material is kept to be all 2 DEG C of 20 scholar with the temperature of B material；
(2) A material and B material are sent into mixing chamber through high pressure pump-metered, wherein A material and B expect A in mass ratio：B=1：1 ratio
Example entrance mixing chamber；
(3) A, B material enters mixing chamber and mixes 3 seconds；
(4) and then by compound it is filled with molding in the die cavity of mould；
(5) demoulding after molding.
Embodiment 2
The raw material weight proportioning of soup processed of car air-conditioner pedestal composite is as follows：
| A expects | DCPD 95% | Tungsten hexachloride 4% | Alkene soil stabilizer 1% |
| B expects | DCPD 93% | Triethyl aluminum 6% | Benzophenone 1% |
The preparation of car air-conditioner pedestal：
(1) component in expecting A encloses lower mix homogeneously in argon gas atmosphere；The component that B is expected also mixes under argon atmosphere
Uniformly；A material is kept to be all 2 DEG C of 20 scholar with the temperature of B material；
(2) A material and B material are sent into mixing chamber through high pressure pump-metered, wherein A material and B expect A in mass ratio：B=1：1 ratio
Example entrance mixing chamber；
(3) A, B material enters mixing chamber and mixes 4 seconds；
(4) and then by compound it is filled with molding in the die cavity of mould；
(5) demoulding after molding.
Embodiment 3
The raw material weight proportioning of soup processed of car air-conditioner pedestal composite is as follows：
| A expects | DCPD 94% | Tungsten hexachloride 5.6% | Alkene soil stabilizer 0.2% | Glass fibre 0.2% |
| B expects | DCPD 92% | Triethyl aluminum 7.4% | Benzophenone 0.6% |
The preparation of car air-conditioner pedestal：
First A, B material is prepared in mass ratio, control material temperature is 2 DEG C of 20 scholar, A, B stream amount is controlled to A：B=1：1, mixing
Time is 5 scholar 2 seconds, then mold filling, and former mould temperature is 3 DEG C of 60 scholar, and formpiston mould temperature is 3 DEG C of 50 scholar, and during mold filling, injection pressure is 50
Scholar 5bar, mould-filling time is 17 scholar 2 seconds, solidifying and setting after 25 seconds the demoulding obtain final product.If product has overlap, further to product
Modify.
Embodiment 4
The raw material weight proportioning of soup processed of car air-conditioner pedestal composite is as follows：
| A expects | DCPD 88% | Simple substance tungsten 8% | Alkene soil stabilizer 1% | Glass fibre 3% |
| B expects | DCPD 90% | Triethyl aluminum 5% | Benzophenone 5% |
The preparation of car air-conditioner pedestal：
First A, B material is prepared in mass ratio, control material temperature is 2 DEG C of 20 scholar, A, B stream amount is controlled to A：B=1：1.2, mix
The conjunction time is 5 scholar 2 seconds, then mold filling, and former mould temperature is 3 DEG C of 60 scholar, and formpiston mould temperature is 3 DEG C of 50 scholar, and during mold filling, injection pressure is
50 scholar 5bar, control mould-filling time to be that 17 scholar 2 seconds is full of mould, solidifying and setting after 30 seconds the demoulding obtain final product.If product has overlap
Then product is modified further.The present invention preparation car air-conditioner pedestal aesthetic property and concordance aspect than fiberglass forming,
Production time greatly shortens.
Embodiment 5
The parts by weight of raw materials proportioning of car air-conditioner pedestal composite is as follows：
| A expects | 85 parts of DCPD | 8 parts of manganous acid lithium | 2 parts of alkene soil stabilizer | 3 parts of glass fibre |
| B expects | 87 parts of DCPD | 8 parts of triethyl aluminum | 3 parts of benzophenone |
The preparation of car air-conditioner pedestal：
First A, B material is prepared in mass ratio, control material temperature is 2 DEG C of 20 scholar, A, B stream amount is controlled to A：B=1：1.2, mix
The conjunction time is 5 scholar 2 seconds, then mold filling, and former mould temperature is 3 DEG C of 70 scholar, and formpiston mould temperature is 3 DEG C of 50 scholar, and during mold filling, injection pressure is
50 scholar 5bar, control mould-filling time to be that 17 scholar 2 seconds is full of mould, solidifying and setting after 30 seconds the demoulding obtain final product.If product has overlap
Then product is modified further.The present invention preparation car air-conditioner pedestal aesthetic property and concordance aspect than fiberglass forming,
Production time greatly shortens.
Embodiment 6
Car air-conditioner pedestal, expects A in mass ratio by raw material A material and B：B=1：1 ratio is mixed, wherein,
A expects the following component for weight：98 parts of DCPD, 1 part of tungsten hexachloride, 0.5 part of stabilizer, additive 0.5
Part；
B expects the following component for weight：93 parts of DCPD, 5 parts of activator, 2 parts of regulator.
Prepare car air-conditioner pedestal：
1) store
A material, B material are separately stored in two storage tanks, and storage tank adopts hermetically sealed pattern, and 99.99% nitrogen is filled in inside
To protect raw material；
2) measure
Two kinds of component stock solutions by required ratio metering, for reduce error it is desirable to measuring accuracy be at least scholar 1.5%,
Control in scholar 1% well；
3) mix
High pressure injection mixing chamber is mixed.
4) mold filling
Rapid mold filling after mixing；
5) solidify
The mixed liquor of two kinds of raw materials, after injection die cavity, can react and complete solidification fixed in a short period of time
Type.Due to the poor thermal conductivity of plastics, substantial amounts of reaction heat is due to quickly cannot be transmitted to outer layer so that article shaped is internal warm
Degree is higher than skin temperature, and the solidification causing article shaped is from inside to outside to carry out.In this case, mould be cooled down,
With ensure the maximum temperature in die cavity is controlled below the heat decomposition temperature of resin, and allow product temperature quick
Decline to a certain extent to carry out the demoulding.
6) demoulding
Drop to a certain degree at a temperature of product and have during sufficient intensity and can be carried out the demoulding.For pedestal class
Better simply product stripping does not need specific mould emptier, can deviate from, for complex-shaped parts after part cooling
As the base class demoulding can be realized using specific mould emptier；
7) modify
Modification is exactly that product carries out some corresponding post-processing steps after the demoulding out.This product is out had afterwards
More overlap, has formulated specific frock for shape of product it is ensured that different circular arcs can be processed, the pedestal of differing heights,
Its aesthetic property and concordance are compared with fiberglass forming；
Preparation process technological parameter is as follows：
Embodiment 7
Car air-conditioner pedestal, expects A in mass ratio by raw material A material and B：B=1：0.8 ratio is mixed, wherein,
A expects the following component for weight：85 parts of DCPD, 2 parts of tungsten hexachloride, 2 parts of stabilizer, 3 parts of additive；
B expects the following component for weight：89 parts of DCPD, 8 parts of activator, 4 parts of regulator.
For preparing car air-conditioner pedestal：
1) store
A material, B material are separately stored in two storage tanks, and storage tank adopts hermetically sealed pattern, and 99.99% nitrogen is filled in inside
To protect raw material；
2) measure
Two kinds of component stock solutions by required ratio metering, for reduce error it is desirable to measuring accuracy be at least scholar 1.5%,
Control in scholar 1% well；
3) mix
High pressure injection mixing chamber is mixed.
4) mold filling
Rapid mold filling after mixing；
5) solidify
The mixed liquor of two kinds of raw materials, after injection die cavity, can react and complete solidification fixed in a short period of time
Type.Due to the poor thermal conductivity of plastics, substantial amounts of reaction heat is due to quickly cannot be transmitted to outer layer so that article shaped is internal warm
Degree is higher than skin temperature, and the solidification causing article shaped is from inside to outside to carry out.In this case, mould be cooled down,
With ensure the maximum temperature in die cavity is controlled below the heat decomposition temperature of resin, and allow product temperature quick
Decline to a certain extent to carry out the demoulding.
6) demoulding
Drop to a certain degree at a temperature of product and have during sufficient intensity and can be carried out the demoulding.For pedestal class
Better simply product stripping does not need specific mould emptier, can deviate from, for complex-shaped parts after part cooling
As the base class demoulding can be realized using specific mould emptier；
7) modify
Modification is exactly that product carries out some corresponding post-processing steps after the demoulding out.This product is out had afterwards
More overlap, has formulated specific frock for shape of product it is ensured that different circular arcs can be processed, the pedestal of differing heights,
Its aesthetic property and concordance are compared with fiberglass forming；
Preparation process technological parameter is as follows：
Embodiment 8
The parts by weight of raw materials proportioning of car air-conditioner pedestal composite is as follows：
| A expects | 95 parts of DCPD | 6 parts of manganous acid lithium | 3 parts of alkene soil stabilizer | 5 parts of carbon fiber |
| B expects | 91 parts of DCPD | 7 parts of triethyl aluminum | 4 parts of benzophenone |
The preparation of car air-conditioner pedestal：
1) store
A material, B material are separately stored in two storage tanks, and storage tank adopts hermetically sealed pattern, and 99.99% nitrogen is filled in inside
To protect raw material；
2) measure
Two kinds of component stock solutions by required ratio metering, for reduce error it is desirable to measuring accuracy be at least scholar 1.5%,
Control in scholar 1% well；
3) mix
High pressure injection mixing chamber is mixed.
4) mold filling
Rapid mold filling after mixing；
5) solidify
The mixed liquor of two kinds of raw materials, after injection die cavity, can react and complete solidification fixed in a short period of time
Type.
6) demoulding
Drop to a certain degree at a temperature of product and have during sufficient intensity and can be carried out the demoulding.For pedestal class
Better simply product stripping does not need specific mould emptier, can deviate from, for complex-shaped parts after part cooling
As the base class demoulding can be realized using specific mould emptier；
7) modify
Modification is exactly that product carries out some corresponding post-processing steps after the demoulding out.This product is out had afterwards
More overlap, has formulated specific frock for shape of product it is ensured that different circular arcs can be processed, the pedestal of differing heights,
Its aesthetic property and concordance are compared with fiberglass forming；
Preparation process technological parameter is as follows：
Raw material in each embodiment all should keep and air exclusion, adopts formwork erection, from the bottom up mold filling during mold filling.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not subject to above-described embodiment
Limit, other any spirit without departing from the present invention and the change made under principle, modification, replacement, combine, simplify,
All should be equivalent substitute mode, be included within protection scope of the present invention.
Claims (10)
1. the preparation method of car air-conditioner DCPD composite pedestal, is characterized in that, comprise the steps：
(1) mix homogeneously under protective gas atmosphere of the component in A being expected；The component that B is expected also mixes all under protective gas atmosphere
Even；A material is kept to be all 15～25 DEG C with the temperature of B material；
(2) A material and B material are sent into mixing chamber through high pressure pump-metered, wherein A material and B expect A in mass ratio：The ratio of B=0.5～1.5
Example entrance mixing chamber；
(3) A, B material enters mixing chamber and mixes 2～5 seconds；
(4) and then by compound it is filled with molding in the die cavity of mould；
(5) demoulding after molding.
2. the preparation method of car air-conditioner DCPD composite pedestal according to claim 1, is characterized in that, described molding
Mould is formwork erection.
3. the preparation method of car air-conditioner DCPD composite pedestal according to claim 1, is characterized in that, A in step (1)
The temperature of material and B material is all 18～22 DEG C.
4. the preparation method of car air-conditioner DCPD composite pedestal according to claim 1, is characterized in that, step (2) A expects
Expect A in mass ratio with B：The ratio of B=0.8～1.2 enters mixing chamber.
5. the preparation method of car air-conditioner DCPD composite pedestal according to claim 4, is characterized in that, step (2) A expects
Expect A in mass ratio with B：B=1：1 ratio enters mixing chamber.
6. the preparation method of car air-conditioner DCPD composite pedestal according to claim 1, is characterized in that, step (3) is mixed
Closing room incorporation time is 3～4 seconds.
7. the preparation method of car air-conditioner DCPD composite pedestal according to claim 1, is characterized in that, described step
(4) time that compound is filled with mould is that control is full of die cavity in 8～12 seconds.
8. the preparation method of car air-conditioner DCPD composite pedestal according to claim 7, is characterized in that, described step
(4) time that compound is filled with mould is that control is full of die cavity in 9～11 seconds.
9. according to claim 1 to 8 any one claim car air-conditioner DCPD composite pedestal preparation method,
It is characterized in that, described A material includes the component of following weight：85～98 parts of DCPD, 1～8 part of catalyst.
10. according to claim 1 to 8 any one claim car air-conditioner DCPD composite pedestal preparation side
Method, is characterized in that, described B material includes the component of following weight：85～98 parts of DCPD, 2～10 parts of activator.
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