CN109774798A - Auto parts and components and preparation method thereof - Google Patents
Auto parts and components and preparation method thereof Download PDFInfo
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- CN109774798A CN109774798A CN201910194664.9A CN201910194664A CN109774798A CN 109774798 A CN109774798 A CN 109774798A CN 201910194664 A CN201910194664 A CN 201910194664A CN 109774798 A CN109774798 A CN 109774798A
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- inner panel
- outside plate
- reinforcement
- composite material
- auto parts
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- 239000002131 composite material Substances 0.000 claims abstract description 84
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Abstract
The present invention provides a kind of auto parts and components and preparation method thereof.The auto parts and components include: outside plate, inner panel and the cavity being arranged between outside plate and inner panel, and outside plate is made by the Polydicyclopentadiencomposite composite material that discrete reinforcement enhances, and inner panel is made by the Polydicyclopentadiencomposite composite material that continuous type reinforcement enhances.In the auto parts and components of the above-mentioned structure feature with inner panel, outside plate and cavity, inner panel is as main supporting part, it is made by the Polydicyclopentadiencomposite composite material of continuous fiber reinforcement, outside plate is made using the Polydicyclopentadiencomposite composite material of discontinuous fiber enhancing, under the premise of ensuring modular construction rigidity and mechanical strength, complete the design object of inner panel high-performance, outside plate low cost, the high-performance, low cost, lightweight, short cycle manufacture for realizing auto parts and components, have great economy, social benefit.
Description
Technical field
The present invention relates to field of composite material preparation, in particular to a kind of auto parts and components and preparation method thereof.
Background technique
In existing auto parts and components Lightweight Technology, steel are replaced using aluminium alloy, magnesium alloy, titanium alloy, though it is able to maintain
Preferable structural strength and rigidity, but that there is also processability is poor, material cost height, loss of weight benefit is low, cushioning ability is low
Etc. problems.And " mould Dai Gang " technology, although having played the advantages such as apparent loss of weight, corrosion-resistant using plastic products,
The mechanical properties such as intensity, rigidity, the shock resistance of plastics are limited, are still not useable for load-carrying construction product.Fiber-reinforced resin base is multiple
Condensation material (FRP) has many excellent characteristics such as high-strength light is corrosion-resistant, is the preferred direction of current light weight material in automobile.
In the identical situation of reinforcement material, the performance of reisn base material plays the superiority and inferiority of the comprehensive performance of FRP
Key effect.The most viscosity of thermoplastic polymer is larger, and processing temperature is high, and moulding process difficulty is big, the preparation of composite material
Technology is still immature.In common automobile-used thermosetting polymer, polydicyclopentadiene (PDCPD) has good machinability
And mechanical property, it is the upstart in auto parts and components selection field.
Existing PDCPD application technology mainly prepares polydicyclopentadiene modified plastics, short fiber reinforced composite, compound
The structure reinforcing effect of Material reinforcement body fails to fully demonstrate, and there is the problems such as properties of product are single, and mechanical strength is insufficient mostly,
Product is mainly used for appearance member, inside gadget, fresh to be used for load-carrying construction part less, limits the application range of PDCPD.
For the prior art when manufacturing the auto parts and components of the type structure, mostly using inside and outside plate is chopped strand enhancing
Composite material manufacture, inner panel middle short fiber reinforcing effect is poor, be not able to satisfy application end higher mechanical property demand or
Loss of weight benefit is low.Inner and outer plates, the epoxy resin used in prior art route are manufactured according to continuous fiber reinforced composite materials
There are viscosity for system compared with high, difficulty of processing is big, equipment performance requires the defects such as high, row yielding is low, seriously constrains the type fibre
The application technology development of dimension enhancing composite material parts.
Summary of the invention
The main purpose of the present invention is to provide a kind of auto parts and components and preparation method thereof, to solve existing automobile zero
Component is not able to satisfy existing high-end product to the needs of mechanical property, and loss of weight benefit is low, and which greatly limits its application fields
The problem of.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of auto parts and components, auto parts and components
It include: outside plate, inner panel and the cavity being arranged between outside plate and inner panel, the poly bis ring that outside plate is enhanced by discrete reinforcement
Pentadiene composite material is made, and inner panel is made by the Polydicyclopentadiencomposite composite material that continuous type reinforcement enhances.
Further, the connection type of inner panel and outside plate is splicing or Hybrid connections；Preferably, Hybrid connections are selected from glue-
Screw connection and/or glue-riveting connection.
Further, the structure type of discrete reinforcement and continuous type reinforcement is selected from staple fiber, long fibre, fibre
The one of the group of net, unidirectional or polyaxial long filament, nonwoven mat material, nonwoven mat material fabric, continuous-filament woven fabric and one-way fabric composition
Kind is a variety of；Wherein continuous-filament woven fabric is selected from one of group of woven fabric, knitted fabric, grid cloth and braided fabric composition or more
Kind, structure type includes plain weave, twill, satin weave, 3 D weaving, grid cloth or through knitting device；Discrete reinforcement and company
The material of ideotype reinforcement is selected from glass fibre, carbon fiber, aramid fiber or ramee.
Further, in outside plate, with the weight of dicyclopentadiene monomer, the content of discrete reinforcement
For 0.1~50wt%, preferably 2~30wt%；In inner panel, with the weight of the Polydicyclopentadiencomposite composite material of continuous fiber reinforcement
Percentage composition meter is measured, the content of continuous type reinforcement is 30~80wt%, preferably 40~65wt%.
Further, the Polydicyclopentadiencomposite composite material of discrete reinforcement enhancing further includes the first functional addition
The Polydicyclopentadiencomposite composite material of agent, the enhancing of continuous type reinforcement further includes the second functional additive；Preferably, the first function
Energy property additive and the second functional additive are separately selected from one of inorganic nano-filler, anti-aging agent and fire retardant
Or it is a variety of.
Further, the preparation method of outside plate includes: by discrete reinforcement and optional first functional form additive
It is dispersed in the first dicyclopentadiene polymerization system and carries out the molding reaction of the first polymerizing curable, obtain outside plate, first is bicyclic
Pentadiene polymerization system includes dicyclopentadiene monomer, the first catalyst and the first polymerization time regulator；The preparation side of inner panel
Method includes: to inject the second dicyclopentadiene polymerization system in continuous type reinforcement and optional second functional additive to carry out
The molding reaction of second polymerizing curable, obtains inner panel, and the second dicyclopentadiene polymerization system includes dicyclopentadiene monomer, second urges
Agent and the second polymerization time regulator.
Further, before carrying out the molding reaction of the first polymerizing curable, the preparation method of outside plate further include: protected first
It protects under atmosphere, the first heating process is carried out to dicyclopentadiene monomer, so as to be liquid under dicyclopentadiene monomer room temperature；Into
Before the molding reaction of the second polymerizing curable of row, the preparation method of inner panel further include: under the second protective atmosphere, to dicyclopentadiene
Monomer carries out the second heating process, so as to be liquid under dicyclopentadiene monomer room temperature.
Further, the first protective atmosphere and the second protective atmosphere are separately selected from nitrogen or inert gas；First
The temperature of heating process and the second heating process is separately selected from 140~180 DEG C, it is preferable that the first heating process and
The temperature of two heating processes is separately selected from 145~160 DEG C, it is highly preferred that the first heating process and the second heating process
Temperature be separately selected from 150~160 DEG C.
Further, the first polymerization time regulator and the second polymerization time regulator be separately selected from alcohol, ketone,
One of group of ether, al-based compound and organic phosphine composition is a variety of.
The another aspect of the application additionally provides a kind of preparation method of auto parts and components, auto parts and components include outside plate and
Inner panel, preparation method include: to prepare outside plate and inner panel using above-mentioned preparation method；And outside plate and inner panel are used into above-mentioned connection side
Formula is attached.
The another aspect of the application additionally provides a kind of Polydicyclopentadiencomposite composite material of discrete reinforcement enhancing,
The Polydicyclopentadiencomposite composite material of discrete reinforcement enhancing is made using the molding reaction of the first polymerizing curable.
The another aspect of the application additionally provides a kind of Polydicyclopentadiencomposite composite material of continuous type reinforcement enhancing, even
The Polydicyclopentadiencomposite composite material of ideotype reinforcement enhancing is made using the molding reaction of the second polymerizing curable.
It applies the technical scheme of the present invention, the present invention proposes the automobile zero with the structure feature of inner panel, outside plate and cavity
Component, inner panel are made as main supporting part by the Polydicyclopentadiencomposite composite material of continuous fiber reinforcement, and outside plate is using non-
The Polydicyclopentadiencomposite composite material of continuous fiber reinforcement is made, under the premise of ensuring modular construction rigidity and mechanical strength,
The design object for completing inner panel high-performance, outside plate low cost, realize the high-performance of auto parts and components, low cost, lightweight,
Short cycle manufacture, has great economy, social benefit.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.Below in conjunction with embodiment, the present invention will be described in detail.
As described in background technique, existing auto parts and components are not able to satisfy existing high-end product to mechanical property
It needs, the problem of loss of weight benefit is low, and which greatly limits its application fields.In order to solve the above-mentioned technical problem, the application provides
A kind of auto parts and components, auto parts and components include: outside plate, inner panel and the cavity being arranged between outside plate and inner panel, outside plate
It is made by the Polydicyclopentadiencomposite composite material that discrete reinforcement enhances, the poly bis ring that inner panel is enhanced by continuous type reinforcement
Pentadiene composite material is made.
The present invention proposes the auto parts and components with the structure feature of inner panel, outside plate and cavity, and inner panel is as main load-bearing
Part is made by the Polydicyclopentadiencomposite composite material of continuous fiber reinforcement, and outside plate uses the poly bis ring of discontinuous fiber enhancing
Pentadiene composite material is made, and cavity is arranged between inner panel and outside plate, the rigidity of structure of components entirety can be improved, for pacifying
The functional assemblies such as glaze, lock, drawstring, built-in fitting, while connecting hole, fabrication hole and working space being provided.It is thus above-mentioned
Auto parts and components can ensuring modular construction rigidity and under the premise of mechanical strength, complete inner panel high-performance, outside plate it is low at
This design object realizes the high-performance, low cost, lightweight, short cycle manufacture of auto parts and components, have great economy,
Social benefit.
Preferably, above-mentioned auto parts and components include but is not limited to hood, car door, rear tailgate etc..
The connection type of above-mentioned outside plate and inner panel can be assembled by the way of commonly used in the art.A kind of preferred
In embodiment, the connection type of inner panel and outside plate is splicing or Hybrid connections；Preferably, Hybrid connections be selected from glue-screw connection and/
Or glue-riveting connection.
Generally, the modes such as paint in spraying mould, matrix coloring, which can be used, in outside plate, inner panel improves apparent form feature, realizes
Customize manufacture.
According to application demand, structure design can be carried out to reinforcement made from continuous fiber or discontinuous fiber, obtain layer
Interior or interlayer space network realizes composite structure enhancing, has been obviously improved the power of PDCPD polymer matrix composites
Performance is learned, VARI, RTM, autoclave, the contour performance composite material manufacturing technology of molding can be used in manufacturing process, and defect is less,
Properties of product are stablized, high mechanical strength, can meet requirement of the application end to higher performance, and it is excellent to play carbon fibre composite
Loss of weight benefit is realized the lightweight of components, is thinning.In a kind of preferred embodiment, discrete reinforcement and continuous
The structure type of type reinforcement is selected from staple fiber, long fibre, fibre web, unidirectional or polyaxial long filament, nonwoven mat material, nonwoven mat material and knits
Object, continuous-filament woven fabric and one-way fabric composition group it is one or more.
Wherein continuous-filament woven fabric is selected from one of group of woven fabric, knitted fabric, grid cloth and braided fabric composition or more
Kind, structure type includes plain weave, twill, satin weave, 3 D weaving, grid cloth or through knitting device.
The material of discrete reinforcement and continuous type reinforcement is selected from glass fibre, carbon fiber, aramid fiber or ramie
Fiber.
For comprehensive performances such as the intensity and the toughness that further increase outside plate, it is highly preferred that in outside plate, with dicyclopentadiene
The weight of monomer, the content of discrete reinforcement are 0.1~50wt%, preferably 2~30wt%.
Discontinuous fiber enhances PDCPD polymer matrix composites, and under the premise of meeting application requirement, manufacturing process can
It is matched with rapid forming equipments such as hand paste, injection molding, injection, moldings, significantly improves production efficiency, reduce manufacturing cost.
Inner panel uses continuous fiber reinforcement PDCPD polymer matrix composites, the weighing structure as components.It is added continuous
Fiber type reinforcement material is conducive to improve the rigidity of composite material.In order to further increase the load-bearing property of inner panel, in inner panel,
To account for the weight of the Polydicyclopentadiencomposite composite material of continuous fiber reinforcement, the content of continuous type reinforcement is 30
~80wt%, preferably 40~65wt%.
In order to improve the comprehensive performance of composite material, it will usually add some functional additives in its polymerization process.
In a kind of preferred embodiment, the Polydicyclopentadiencomposite composite material of discrete reinforcement enhancing further includes the first functionality
The Polydicyclopentadiencomposite composite material of additive, the enhancing of continuous type reinforcement further includes the second functional additive；Preferably,
One functional additive and the second functional additive are separately in inorganic nano-filler, anti-aging agent and fire retardant
It is one or more.
The inorganic filler of addition nano-scale rank is conducive to improve its dispersing uniformity in polymerization system, in one kind
In preferred embodiment, inorganic nano-filler includes but is not limited to nanoclay and/or carbon nanotube.It is highly preferred that double to account for
The weight of cyclopentadiene monomers, the additive amount of inorganic nano-filler are 0.2~10wt%, more preferably 0.5~
5wt%, further preferably 1~2wt%.
Above-mentioned inner panel and outside plate can be made using method commonly used in the art.In a kind of preferred embodiment, outside plate
Preparation method include: that discrete reinforcement and optional first functional form additive are dispersed in first bicyclic penta 2
The molding reaction of the first polymerizing curable is carried out in alkene polymerization system, obtains outside plate, the first dicyclopentadiene polymerization system includes bicyclic
Pentadiene monomer, the first catalyst and the first polymerization time regulator；The preparation method of inner panel includes: by the second dicyclopentadiene
The molding reaction of the second polymerizing curable is carried out in polymerization system injection continuous type reinforcement and optional second functional additive, is obtained
To inner panel, the second dicyclopentadiene polymerization system includes that dicyclopentadiene monomer, the second catalyst and the second polymerization time are adjusted
Agent.
Catalyst, polymerization time regulator are added in dicyclopentadiene polymerization process, is conducive to that there is polymerization system
The advantages that viscosity is low, technique applicability is wide, at low cost and solidification rate is adjustable, thus greatly reduces making for polydicyclopentadiene
With threshold, application range has been widened.
It is solid under room temperature due to dicyclopentadiene monomer, this makes it there is certain difficulty in process, from
And greatly limit its application field.To solve the above-mentioned problems, solid in the polymerization of carry out first in a kind of preferred embodiment
Before the reaction of chemical conversion type, the preparation method of outside plate further include: under the first protective atmosphere, first is carried out to dicyclopentadiene monomer
Heating process, so as to be liquid under dicyclopentadiene monomer room temperature；Before carrying out the molding reaction of the second polymerizing curable, inner panel
Preparation method further include: under the second protective atmosphere, the second heating process is carried out to dicyclopentadiene monomer, so that bicyclic penta 2
It is liquid under alkene monomer room temperature.
Heating under protective atmosphere to dicyclopentadiene monomer can prevent dicyclopentadiene monomer because by oxygen
Change and influence the performance of subsequent product.Simultaneously before carrying out polymerization reaction, first raw material is pre-processed, makes dicyclopentadiene
Monomer at normal temperature by it is solid state transformed be liquid, this be conducive to improve dicyclopentadiene monomer it is convenient in composite processing
Property, its processing technology difficulty is reduced, application range has been widened.
Preferably, the first protective atmosphere and the second protective atmosphere are separately selected from nitrogen or inert gas；First adds
The temperature of thermal process and the second heating process is separately selected from 140~180 DEG C.Heating temperature includes but is not limited to above-mentioned model
It encloses, and is limited the liquefaction process for being conducive to improve dicyclopentadiene monomer within the above range.Preferably, first is heated
The temperature of journey and the second heating process is separately selected from 145~160 DEG C, it is highly preferred that the first heating process and second adds
The temperature of thermal process is separately selected from 150~160 DEG C.
It is poly- that the addition of first polymerization time regulator and the second polymerization time regulator can adjust the first dicyclopentadiene
The solidification rate of zoarium system and the second dicyclopentadiene polymerization system.In a kind of preferred embodiment, the first polymerization time tune
It saves in the group of agent and the second polymerization time regulator separately selected from alcohol, ketone, ether, al-based compound and organic phosphine composition
It is one or more.
Catalyst used in above-mentioned polymerization reaction includes but is not limited to one-component metal carbene type catalyst or bi-component
Transition-metal catalyst.Preferably, one-component metal carbene type catalyst is transition metal carbene catalyst；Preferably, double groups
Dividing transition-metal catalyst includes transition metal complex catalyst and co-catalyst, the mistake in transition metal complex catalyst
Crossing metallic atom includes but is not limited to Ru, Ti, Ni or Mo, preferably Ru, and co-catalyst is lewis base.
When the first catalyst is that system uses one-component catalyst system, the first polymerization time regulator is preferably organic
Phosphorus；When second catalyst is that system uses one-component catalyst system, the second polymerization time regulator is preferably organic phosphorus.When first
When catalyst is that system uses bi-component catalyst system, the first polymerization time regulator is preferably alcohol, ether and al-based compound group
It is one of in groups or a variety of；When the second catalyst is that system uses bi-component catalyst system, the second polymerization time regulator
Preferably alcohol, ether and al-based compound group are one of in groups or a variety of.For the difference of catalyst, when using different polymerizations
Between regulator be conducive to adjust the curing time of dicyclopentadiene monomer in polymerization reaction to more appropriate range, in order to
It is carried out processing modified.
In a kind of preferred embodiment, when using single component catalyst, the first catalyst, the first polymerization time are adjusted
Agent and the weight ratio of dicyclopentadiene monomer and the second catalyst, the second polymerization time regulator and dicyclopentadiene monomer
Weight ratio is separately selected from (0.01~5): (0.5~20): 100.Catalyst, polymerization time regulator and dicyclopentadiene
The weight ratio of monomer includes but is not limited to above range, and is limited and be conducive to improve the anti-of polymerization reaction within the above range
Answer the comprehensive performance of rate and composite material.
On the other hand the application additionally provides a kind of preparation method of auto parts and components, auto parts and components include outside plate and interior
Plate, preparation method include: to prepare outside plate and inner panel using above-mentioned preparation method；And outside plate and inner panel are used into above-mentioned connection type
It is attached.
The present invention proposes the auto parts and components with the structure feature of inner panel, outside plate and cavity, and inner panel is as main load-bearing
Part is made by the Polydicyclopentadiencomposite composite material of continuous fiber reinforcement, and outside plate uses the poly bis ring of discontinuous fiber enhancing
Pentadiene composite material is made, and cavity is arranged between inner panel and outside plate, the rigidity of structure of components entirety can be improved, for pacifying
The functional assemblies such as glaze, lock, drawstring, built-in fitting, while connecting hole, fabrication hole and working space being provided.It is thus above-mentioned
Auto parts and components can ensuring modular construction rigidity and under the premise of mechanical strength, complete inner panel high-performance, outside plate it is low at
This design object realizes the high-performance, low cost, lightweight, short cycle manufacture of auto parts and components, have great economy,
Social benefit.
The another aspect of the application additionally provides a kind of Polydicyclopentadiencomposite composite material of discrete reinforcement enhancing, non-
The Polydicyclopentadiencomposite composite material of continuous type reinforcement enhancing is made using the molding reaction of the first polymerizing curable.Using above-mentioned side
The Polydicyclopentadiencomposite composite material of the enhancing of discrete reinforcement made from method has excellent intensity and toughness.
The another aspect of the application additionally provides a kind of Polydicyclopentadiencomposite composite material of continuous type reinforcement enhancing, continuously
The Polydicyclopentadiencomposite composite material of type reinforcement enhancing is made using the molding reaction of the second polymerizing curable.Using above method system
The Polydicyclopentadiencomposite composite material rigidity with higher of the continuous type reinforcement enhancing obtained, load-bearing property are preferable.
The Polydicyclopentadiencomposite composite material and continuous type reinforcement of above-mentioned discrete reinforcement enhancing enhance poly bis
Cyclopentadiene composite material all has the characteristics such as low viscosity, rapid curing, is suitable for forming labyrinth components, it can be achieved that cavity
The optimization design of layout, labyrinth are integrally formed, and bracing wire slot, anchor point, built-in metal are such as integrally formed when outside plate manufactures
Part etc., Fast Installation avoid the technical process such as complicated welding or the punching press of the components such as metal, reduce manufacturing cost, improve life
Produce efficiency.
The application is described in further detail below in conjunction with specific embodiment, these embodiments should not be understood as limitation originally
Apply for range claimed.
The correlated performance of material is characterized by following method.
The tensile property of composite material is tested according to GB/T 1,447 2005.
The shock resistance of material is characterized by using CAI.Wherein, CAI is shock resistance damage and damage tolerance two
The joint effect of a independent phenomenon, the post-impact compression (CAI value) of reference ASTM D7130 standard testing composite material,
CAI value shows that more greatly composite material has higher toughness.
The viscosity of composite material is characterized by GB/T 10247-2008 Viscosity Measurement Methods.
The coating adhesive force test of composite material is drawn lattice experiment by ISO 2409 and is assessed.
Embodiment 1
Under the protection of nitrogen, by dicyclopentadiene Unit heating to 150 DEG C, restores to room temperature, protect it at normal temperature
It holds as liquid.
Outer plate of automotive engine cover is using the enhancing PDCPD composite material production of discrete reinforcement.In the production process,
Polymerization time regulator triphenyl phosphorus is added into treated liquid dicyclopentadiene monomer first, additive amount is that DCPD is mono-
The 2% of body weight score later stirs above-mentioned mixed system 1 hour.Catalyst is added to system in whipping process later
Grubbs catalyst, additive amount are the 0.017% of dicyclopentadiene monomer weight score, and mixed system is quickly stirred 3 points
2mm chopped carbon fiber is added using LFI technique (reaction injection molding) in Zhong Hou, and additive amount is DCPD monomer weight score
50% prepares composite material automobile hood outside plate.
The inner panel of car engine cover enhances PDCPD composite material using continuous type reinforcement.In the production process, first
It is 1:1 by number of plies ratio, mold will be placed on by the precast body of carbon fiber twills and the hood inner panel of one-way fabric preparation
On, DCPD polymerization system is injected after molding.The polymerization system includes dicyclopentadiene monomer monomer, polymerization time regulator and urges
Agent matches consistent with the composition of dicyclopentadiene polymerization system used in outside plate preparation process.Later, with RTM work
Hair lid inner panel is made in skill (Resin transfer molding molding), wherein (carbon fiber is oblique for composite continuous type reinforcement in hair lid inner panel
Pattern fabric and one-way fabric) weight accounts for the 80wt% of composite material total weight.
Then, inner panel and outside plate are assembled using glue-spiral shell Hybrid connections mode, the weight of lightweight car engine cover is made
Only 8Kg, structural strength is high, lighter in weight.
The mechanical property of obtained product is as shown in table 1.
Embodiment 2
Under the protection of helium, by dicyclopentadiene Unit heating to 160 DEG C, restores later to room temperature, make it in room temperature
Under remain liquid；
The production of door skin uses chopped strand toughening PDCPD polymer matrix composites.To treated, liquid is bicyclic
Polymerization time regulator triphenyl phosphorus is added in pentadiene monomer, additive amount is the 2% of monomer weight score, later will be above-mentioned
Mixed system stirs 1 hour.Then under stirring in above-mentioned mixed system be added catalyst Grubbs catalyst, add
Dosage is the 0.017% of monomer weight score, quickly stirs mixed system 3 minutes, and DCPD polymerization system is made.Then, it adopts
Enhance composite material with LFI technique (reaction injection molding) preparation 2mm chopped carbon fiber, the chopped carbon fiber of 2mm is added into system
Dimension, additive amount are the 30% of monomer additive amount, and 5 minutes curing moldings are opened after sizing, and door skin is made.
Inner plate of car door uses continuous type fiber reinforcement PDCPD composite material.In the production process, by carbon fiber twills
The inner plate of car door precast body of preparation designs the 65wt% that the carbon fiber twills weight in product accounts for total weight, is placed in down
Mold, molding injection DCPD polymerization system, the polymerization system include monomer, polymerization time regulator and catalyst, proportion with
The composition of dicyclopentadiene polymerization system is consistent in outside plate preparation process.It is made using RTM technique (Resin transfer molding molding)
Inner plate of car door.Then, inner panel and outside plate are assembled using glue-spiral shell Hybrid connections mode, peace in cavity between the inner plate and the outer plate
Glaze and door lock assemble inner panel and outside plate using glue-spiral shell Hybrid connections mode, and fiber reinforcement PDCPD composite car is made
Door.
The mechanical property of obtained product is as shown in table 1.
Embodiment 3
With the difference of embodiment 2 are as follows: under the protection of helium, by dicyclopentadiene Unit heating to restore after 145 DEG C to
Room temperature makes it remain liquid at normal temperature.
Embodiment 4
With the difference of embodiment 2 are as follows: under the protection of helium, by dicyclopentadiene Unit heating to restore after 140 DEG C to
Room temperature makes it remain liquid at normal temperature.
Embodiment 5
With the difference of embodiment 2 are as follows: in outside plate, discrete reinforcement is discontinuous long carbon fiber；In inner panel, continuous type
Reinforcement is aramid fiber.
Embodiment 6
With the difference of embodiment 2 are as follows: in outside plate, with dicyclopentadiene monomer weight, the content of discrete reinforcement
For 50wt%；In inner panel, with the total weight of the Polydicyclopentadiencomposite composite material of continuous type reinforcement enhancing, continuous type enhancing
The content of body is 50wt%.
Embodiment 7
With the difference of embodiment 2 are as follows: in outside plate, with dicyclopentadiene monomer weight, the content of discrete reinforcement
For 0.2wt%；In inner panel, with the total weight of the Polydicyclopentadiencomposite composite material of continuous type reinforcement enhancing, continuous type increases
The content of strong body is 65wt%.
Comparative example 1-1
In order to compare the mechanical property of fiber reinforcement front and back material product, inner and outer plates are prepared without fibre-reinforced PDCPD
Vehicle hair lid.In the production process, polymerization time regulator triphen is added into treated liquid dicyclopentadiene monomer first
Base phosphorus, additive amount are the 2% of monomer weight score, are later stirred above-mentioned mixed system 1 hour, later in whipping process
Catalyst Grubbs catalyst is added to system, additive amount is the 0.017% of monomer weight score, quickly stirs mixed system
After mixing 3 minutes, make without fibre-reinforced outer plate of automotive engine cover.Meanwhile car engine cover inner panel uses and outside plate phase
Same formula is made.Wherein, Fa Gainei, outer board size are same as Example 1.
The mechanical property of obtained product is as shown in table 1.
Comparative example 1-2
In order to compare inner and outer plates using effect caused by different enhanced forms, it is prepared for inner and outer plates and is increased with continuous fiber
Strong PDCPD car engine cover.In the production process, polymerization is added into treated liquid dicyclopentadiene monomer first
Time adjustment agent triphenyl phosphorus, additive amount are the 2% of monomer weight score, later stir above-mentioned mixed system 1 hour, it
Catalyst Grubbs catalyst is added to system in whipping process afterwards, additive amount is the 0.017% of monomer weight score, fastly
After speed stirs mixed system 3 minutes, it is rapidly injected the mould equipped with carbon fiber twills and one-way fabric laid in advance
In tool, later, hair is made with RTM technique and covers inside and outside plate.Wherein, it is equal to cover composite continuous fibre weight in inside and outside plate for hair
The 50wt% of composite material total weight is accounted for, and interior, outer board size is same as Example 1.
The mechanical property of obtained product is as shown in table 1.
Table 1
By data in table 1 it is found that the PDCPD composite material tensile strength and shock resistance of the enhancing of enhanced body obviously increase
Greatly.Moreover, using the present invention program, i.e., the inner panel Polydicyclopentadiencomposite composite material that uses continuous fiber reinforcement, outside plate use
The Polydicyclopentadiencomposite composite material of discontinuous fiber enhancing, while significantly improving tensile strength and shock resistance, energy
Mitigate weight to a greater extent, reduces cost.
Embodiment 8
Under the protection of nitrogen, by dicyclopentadiene Unit heating to 170 DEG C, restores later to room temperature, make it in room temperature
Under remain liquid.
Outer plate of automotive engine cover is made of discrete fiber reinforcement PDCPD composite material.In the production process, first
Polymerization time regulator triphenyl phosphorus is first added into treated liquid dicyclopentadiene monomer, additive amount is monomer weight
The 2.2% of score later stirs above-mentioned mixed system 1 hour.Catalyst is added to system in whipping process later
Grubbs catalyst, additive amount is the 0.02% of monomer weight score, after quickly stirring mixed system 3 minutes, using LFI
Technique is added 2mm chopped carbon fiber into system and nano silica, weight fraction is respectively 10wt% and 5wt%.System
Standby composite material automobile hood outside plate.
The inner panel of car engine cover uses continuous type fiber reinforcement PDCPD composite material.In the production process, fragrant first
The precast body that synthetic fibre fabric prepares hood inner panel is placed on mold, and DCPD polymerization system, formula system packet are injected after molding
Containing monomer, polymerization time regulator and catalyst, proportion is consistent with discrete fiber reinforcement system above proportion.Later,
Hair lid inner panel is made with RTM technique, wherein composite continuous fibre weight accounts for composite material total weight in hair lid inner panel
70wt%.
By 1# oil paint coating used in composite board surface, 60 DEG C of baking 2h.
Comparative example 3-1
Aramid fiber composite material is made using common 935# epoxy systems, completes to apply using technique same as Example 8
Dress.
The paint adhesion of lattice experiment detection different composite material plate is drawn referring to ISO 2409.
Table 2
The result shows that if other conditions are the same, it is compound as the carbon fiber of matrix using the PDCPD resin system
The paint adhesion of material is 0 grade, is better than carbon-fibre reinforced epoxy resin composite material, illustrates fibre reinforced PDCPD resin
Composite material has excellent paintable energy.
In conclusion the beneficial effect that the application can be realized includes:
1, the present invention proposes that the auto parts and components with the structure feature of inner panel, outside plate and cavity, inner panel are used as and mainly hold
Weight part, is made by the Polydicyclopentadiencomposite composite material that continuous type reinforcement enhances, and outside plate is increased using discrete reinforcement
Strong Polydicyclopentadiencomposite composite material is made, and under the premise of ensuring modular construction rigidity and mechanical strength, completes inner panel
The design object of high-performance, outside plate low cost realizes the high-performance, low cost, lightweight, short cycle system of auto parts and components
It makes, there is great economy, social benefit.
2, before carrying out polymerizing curable molding, first passing through heat treatment makes dicyclopentadiene monomer at normal temperature by solid-state
It is converted into liquid, this is conducive to improve dicyclopentadiene monomer convenience in composite processing, reduces its processing technology hardly possible
Degree.
3, there is viscosity using the polymerization system that catalyst, polymerization time regulator and liquid dicyclopentadiene monomer are constituted
Low, the advantages that technique applicability is wide, at low cost, thus greatly reduce polydicyclopentadiene uses threshold, has widened application
Range.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of auto parts and components, which is characterized in that the auto parts and components include: outside plate, inner panel and setting described outer
Cavity between plate and the inner panel, the Polydicyclopentadiencomposite composite material system that the outside plate is enhanced by discrete reinforcement
, the inner panel is made by the Polydicyclopentadiencomposite composite material that continuous type reinforcement enhances.
2. auto parts and components according to claim 1, which is characterized in that the connection type of the inner panel and the outside plate is
Splicing or Hybrid connections；Preferably, the Hybrid connections are selected from glue-screw connection and/or glue-riveting connection.
3. auto parts and components according to claim 1 or 2, which is characterized in that
The structure type of the discrete reinforcement and the continuous type reinforcement is selected from staple fiber, long fibre, fibre web, unidirectional
Or one kind or more of the group of polyaxial long filament, nonwoven mat material, nonwoven mat material fabric, continuous-filament woven fabric and one-way fabric composition
Kind；
Wherein the continuous-filament woven fabric is selected from one of group of woven fabric, knitted fabric, grid cloth and braided fabric composition or more
Kind, structure type includes plain weave, twill, satin weave, 3 D weaving, grid cloth or through knitting device；
The material of the discrete reinforcement and the continuous type reinforcement be selected from glass fibre, carbon fiber, aramid fiber or
Ramee.
4. auto parts and components according to claim 3, which is characterized in that in the outside plate, to account for dicyclopentadiene monomer
Weight, the content of the discrete reinforcement is 0.1~50wt%, preferably 2~30wt%；
In the inner panel, in terms of the percentage composition of Polydicyclopentadiencomposite composite material total weight for accounting for the continuous fiber reinforcement,
The content of the continuous type reinforcement is 30~80wt%, preferably 40~65wt%.
5. auto parts and components according to claim 4, which is characterized in that the poly bis ring of the discrete reinforcement enhancing
Pentadiene composite material further includes the first functional additive, the polydicyclopentadiene composite wood of the continuous type reinforcement enhancing
Material further includes the second functional additive；Preferably, first functional additive and second functional additive point
Not independently selected from one of inorganic nano-filler, anti-aging agent and fire retardant or a variety of.
6. auto parts and components according to claim 5, which is characterized in that the preparation method of the outside plate includes: will be described
Discrete reinforcement and the optional first functional form additive are dispersed in the first dicyclopentadiene polymerization system
The molding reaction of the first polymerizing curable is carried out, obtains the outside plate, the first dicyclopentadiene polymerization system includes bicyclic penta 2
Alkene monomer, the first catalyst and the first polymerization time regulator；
The preparation method of the inner panel includes: that the second dicyclopentadiene polymerization system is injected the continuous type reinforcement and optional
The second functional additive in carry out the second polymerizing curable molding reaction, obtain the inner panel, second dicyclopentadiene
Polymerization system includes dicyclopentadiene monomer, the second catalyst and the second polymerization time regulator.
7. auto parts and components according to claim 6, which is characterized in that carrying out the first polymerizing curable molding reaction
Before, the preparation method of the outside plate further include: under the first protective atmosphere, first is carried out to the dicyclopentadiene monomer and is added
Thermal process, so as to be liquid under the dicyclopentadiene monomer room temperature；
Before carrying out the second polymerizing curable molding reaction, the preparation method of the inner panel further include: protect gas second
Under atmosphere, the second heating process is carried out to the dicyclopentadiene monomer, so as to be liquid under the dicyclopentadiene monomer room temperature.
8. auto parts and components according to claim 7, which is characterized in that first protective atmosphere and second protection
Atmosphere is separately selected from nitrogen or inert gas；
The temperature of first heating process and second heating process is separately selected from 140~180 DEG C, it is preferable that
The temperature of first heating process and second heating process is separately selected from 145~160 DEG C, it is highly preferred that institute
The temperature for stating the first heating process and second heating process is separately selected from 150~160 DEG C.
9. auto parts and components according to claim 8, which is characterized in that the first polymerization time regulator and described
The agent of dimerization time adjustment is separately selected from one of group of alcohol, ketone, ether, al-based compound and organic phosphine composition or more
Kind.
10. a kind of preparation method of auto parts and components, which is characterized in that the auto parts and components include outside plate and inner panel, described
Preparation method includes:
The outside plate and the inner panel are prepared using preparation method described in any one of claim 6 to 9；And
The outside plate and the inner panel are attached using connection type described in claim 2.
11. a kind of Polydicyclopentadiencomposite composite material of discrete reinforcement enhancing, which is characterized in that the discrete increases
The Polydicyclopentadiencomposite composite material of strong body enhancing is using the first polymerizing curable molding described in any one of claim 6 to 9
Reaction is made.
12. a kind of Polydicyclopentadiencomposite composite material of continuous type reinforcement enhancing, which is characterized in that the continuous type reinforcement
The Polydicyclopentadiencomposite composite material of enhancing forms reaction using the second polymerizing curable described in any one of claim 6 to 9
It is made.
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