CN107400357A - A kind of vehicle intercooler enters escape pipe - Google Patents
A kind of vehicle intercooler enters escape pipe Download PDFInfo
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- CN107400357A CN107400357A CN201710654035.0A CN201710654035A CN107400357A CN 107400357 A CN107400357 A CN 107400357A CN 201710654035 A CN201710654035 A CN 201710654035A CN 107400357 A CN107400357 A CN 107400357A
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- escape pipe
- parts
- vehicle intercooler
- alkali
- enters escape
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of vehicle intercooler, and in particular to a kind of vehicle intercooler enters escape pipe, belongs to polymeric material field.The vehicle intercooler, which enters escape pipe, includes the component of following parts by weight：PA66:50 60 parts, alkali-free glass fibre：25 30 parts, microcrystalline cellulose：5 10 parts, nano Si3N4:5 10 parts, dispersant：5 10 parts, plasticizer：5 10 parts.The present invention is defined to the number of microcrystalline cellulose, while to alkali-free glass fibre and nano Si3N4Pre-processed, preferably can play compound action with matrix resin, and select suitable dispersant, antioxidant and plasticizer, so as to get charge air cooler enter escape pipe high temperature resistant, and intensity is high.
Description
Technical field
The present invention relates to a kind of vehicle intercooler, and in particular to a kind of vehicle intercooler enters escape pipe, belongs to macromolecule material
Material field.
Background technology
With the continuous development of automobile product, requirement more and more higher of the user to automobile, and turbocharged engine changes
Gas efficiency is more efficient than general engine, therefore turbo charged engine possesses bigger power than common engine.
Its temperature can be raised significantly after air enters turbocharging, and density also accordingly diminishes, and charge air cooler is exactly to play cooling air
Effect, high temperature air pass through charge air cooler cooling, enter back into engine.The height allowed if lacking charge air cooler after being pressurized
Warm air is directly entered engine, then can cause combustion knock because of too high temperature of air or even damage flame-out phenomenon.In it is cold
Device, which is commonly found in, to be mounted with turbo charged car.Because charge air cooler is turbo charged kit in fact, and its effect
It is then to improve the scavenging efficiency of turbocharged engine.And enter important component of the escape pipe as charge air cooler, have
Very important effect.
Traditional charge air cooler inlet/outlet pipe is made of metal material, and its hardness is high, can guarantee that the strong of charge air cooler inlet/outlet pipe
Degree, but metallic article is oxidized easily and gone bad at high temperature, therefore it is restricted in real-life application.
The content of the invention
The present invention is directed to the problem of above-mentioned, there is provided the high vehicle intercooler of a kind of high temperature resistant, intensity enters escape pipe.
The technical purpose of the present invention is realized by following technical solution：A kind of vehicle intercooler enters escape pipe, the vapour
Car charge air cooler, which enters escape pipe, includes the component of following parts by weight： PA66:50-60 parts, alkali-free glass fibre：25-30 parts, crystallite
Cellulose：5-10 parts, nano Si3N4:5-10 parts, dispersant：5-10 parts, plasticizer：5-10 parts.
Vehicle intercooler of the present invention enters escape pipe using the PA66 resins that molecular chain structure is symmetrical, crystallinity is high as matrix tree
Fat, adds the humidification that alkali-free glass fibre plays skeleton structure type, adds microcrystalline cellulose on this basis and forms single fisherman's knot
Structure, and add nano Si3N4It is dispersed in matrix resin and absorbs impact energy, while adds dispersant and plasticizer,
Charge air cooler of the present invention can be made to enter escape pipe resistant to elevated temperatures while there is good intensity.In composite wherein of the present invention
PA66 molecular weight is in 1.5-1.6 ten thousand, and molecular weight distribution is narrower, and material property is more stable, and viscosity is optimal 2.3 or so, has
Beneficial to nano Si3N4Disperse in matrix resin, promote PA66 to nano Si3N4Cladding.
Enter in a kind of above-mentioned vehicle intercooler in escape pipe, add microcrystalline cellulose.When pure polyamide solidifies
Because the coacervate physical and mechanical properties that its linear structure is formed is preferable, tearing strength and tensile strength are higher.When addition is few
When measuring microcrystalline cellulose, microcrystalline cellulose particle can partial obstruction polyamide molecule polymerization, equivalent to destroying its partial line
Property structure, cause some mechanical properties decreases of product；When continuing to increase microcrystalline cellulose dosage, microcrystalline cellulose particle
The structure being interweaved is formed with polyamide, now microcrystalline cellulose particle can produce certain physics to polyamide molecule and mend
Use is pretended, promotes the mechanical strength of product to rise；But such as continue to increase dosage, because polyamide reduces, this friendship
Darn strong structure to be destroyed, secondary decline can occur again for PA66 mechanical strength.Therefore, above-mentioned number used in the present invention
Microcrystalline cellulose, obtained charge air cooler can be made to enter the intensity of escape pipe and improved.Preferably, microcrystalline cellulose in the present invention
Particle diameter is 40-50 μm.
In above-mentioned vehicle intercooler inlet/outlet pipe, the alkali-free glass fibre length is 1.5-3.0mm, a diameter of 9-
14μm.In the present invention, alkali-free glass fibre plays the humidification of skeleton structure type in PA66, when by load, due to
The transfers of alkali-free glass fibre, stress are spread rapidly, organize the growth of crackle, therefore as alkali-free glass fibre contains
The increase of amount, can make PA66 mechanical property strengthen.Meanwhile the addition of alkali-free glass fibre can make fiber and matrix tree
The inhibition increase that middle polymer macromolecule sub-chain motion is subject on boundary layer between fat, the glass transition temperature of material can be made
Improve, macroscopically show as the raising of heat distortion temperature.Meanwhile increase with the content of alkali-free glass fibre, composite
Melt flow rate (MFR) and elongation at break decline, and density and hardness increases, and this also illustrates that the compressive property of material improves.But
When alkali-free glass fibre content is excessive, the reduction of pre-polymerization liquid flowability can be caused, very burden is brought to weaving process.Therefore originally
Invention vehicle intercooler enters the alkali-free glass fibre that escape pipe selects above-mentioned parts by weight, while making PA66 performance enhancement
Without influenceing its process for machining and manufacturing.
In addition, the alkali-free glass fibre that the present invention selects, compared to medium-alkali glass fibre and high alkali glass fibre, it is changed
It is good to learn stability, mechanical strength is high, and degree of hydrolysis is low, and water-fast resistance to weak base performance is good.The present invention by the length of alkali-free glass fibre and
Diameter controls in above range respectively, alkali-free glass fibre can be made to be uniformly dispersed in PA66, further improves shear-mixed effect
Fruit and melt plasticizing effect.In the present invention if alkali-free glass fibre diameter is too big, cementability and phase with PA66 can be reduced
Capacitive；If alkali-free glass fibre is too thin, the humidification of itself is easily lost into fine-powder by screw rod shearing.
Entering in a kind of above-mentioned vehicle intercooler in escape pipe, the alkali-free glass fibre pre-processes by silane coupler,
The silane coupler is r- aminopropyl trimethoxysilanes.Affiliated pre-treatment step includes：By alkali-free glass fibre 1%-
2% concentration silane coupler solution immersion 10min, during constantly vibrated, then alkali-free glass fibre is taken out,
1-2h is placed at room temperature, then about 4h is heated at 120 DEG C, it is standby after cooling.
Enter in a kind of above-mentioned vehicle intercooler in escape pipe, alkali-free glass fibre is located in advance using silane coupler
Reason, alkali-free glass fibre surface can be made to produce the active function groups for having chemical bonding with it, these functional groups energy and matrix resin
Have and physically or chemically act on well, the interface binding intensity of alkali-free glass fibre and matrix resin in material can be improved, so as to
Greatly improve the various performances of composite.
Furthermore add nano Si in the present invention3N4, nano Si3N4It is a kind of nontoxic, tasteless, free of contamination inorganic non-
Metal material, there are very high chemical stability, heat-resisting quantity, good mechanical performance and excellent dielectric properties.Nanometer
Disperse in the base uniform particle, when matrix is impacted, micro-crack (crazing) is produced between particle and matrix；Simultaneously
Matrix between particle also produces plastic deformation, impact energy is absorbed, so as to reach the effect of toughness reinforcing.As particle size becomes
Carefully, the specific surface area increase of particle, contact area increases between particle and matrix.When material is impacted, micro-crack can be produced
And plastic deformation, so as to absorb more impact energys, toughening effect improves.
Preferably, the nano Si3N4A diameter of 100nm-120nm.
Vehicle intercooler of the present invention enters in escape pipe, the nano Si3N4High shear agitation 40-50min is first carried out, it
Sonic oscillation 30-40min again afterwards, can make nano Si3N4Particle is preferably dispersed in PA66, is that the performance of composite is entered
One step is lifted.
Enter in a kind of above-mentioned vehicle intercooler in escape pipe, the dispersant is one or both of acetone, ethanol.
In the present invention, dispersant is added, nano Si can be made3N4There is good dispersiveness, and nano Si in dispersant3N4Grain
Fineness of dispersion of the son in dispersant is smaller, can improve the reactivity worth of itself and matrix resin.Meanwhile used point of the present invention
Powder is volatile, is easy to post-process.
Enter in vehicle intercooler of the present invention in escape pipe, the plasticizer is dibutyl phthalate, phthalic acid
One or both of two isodecyl esters.Simple PA66 solidfied materials are more crisp, and shock resistance and bending resistance are poor, increased by adding
Modeling agent can be such that the fragility of solidfied material reduces accordingly, improve its flexility.Plasticizer is with good with Polymers Phase capacitive
Compound, reduced by physical action polymeric glass temperature, reach improvement processing, assign the flexible mesh of product
's.The present invention adds plasticizer in PA66, can improve the mobility of resin, reduces flowing temperature, is advantageous to machine-shaping,
Increased the performances such as cured product impact strength, pliability, high temperature resistant.
The preparation method that vehicle intercooler of the present invention enters escape pipe comprises the following steps：Weigh in parts by weight prepare into
The raw material of escape pipe, nylon compound particle is made using melting mechanical blending method by torque rheometer in the raw material weighed, then
In the warmed-up pipe mould of rapid injection, be stripped after cooling charge air cooler of the present invention enters escape pipe finished product.
Preferably, the engine speed of double screw extruder is 40-45Hz, main feeding 15-20Hz in torque rheometer,
Temperature is 310-320 DEG C.
Preferably, the pipe mould preheating temperature is 160-180 DEG C, cooling and demolding temperature is 50-60 DEG C.
Compared with prior art, the invention has the advantages that：
1st, vehicle intercooler of the present invention enters escape pipe and uses PA66 resins as matrix resin, adds alkali-free glass fibre and rises
The humidification of skeleton structure type, microcrystalline cellulose is added on this basis and forms pilotaxitic texture, and add nano Si3N4Uniformly
It is scattered in matrix resin and absorbs impact energy, while add dispersant and plasticizer, can passes in and out charge air cooler of the present invention
Tracheae is resistant to elevated temperatures while has good intensity；
2nd, the present invention is defined to the number of microcrystalline cellulose, while to alkali-free glass fibre and nano Si3N4Enter
Row pretreatment, compound action preferably can be played with matrix resin, and select suitable dispersant, antioxidant and plasticising
Agent, so as to get charge air cooler disengaging tracheae performance further lifted；
3rd, it is reasonable to enter escape pipe compatibility for vehicle intercooler of the present invention, and uses specific preparation method, so as to get disengaging
Tracheae high temperature resistant, and intensity is high.
Embodiment
It is the specific embodiment of the present invention below, technical scheme is further described, but the present invention is simultaneously
It is not limited to these embodiments.
Table 1：1-5 vehicle intercoolers of the embodiment of the present invention enter the constituent and its parts by weight of escape pipe
Alkali-free glass fibre length is 1.5-3.0mm in table 1, a diameter of 9-14 μm；Nano Si3N4First carry out high speed shear
40-50min is stirred, afterwards sonic oscillation 30-40min again.
Embodiment 1
The raw material prepared into escape pipe is weighed by the parts by weight of the embodiment 1 of table 1, the raw material weighed is passed through into torque flow
Become instrument and nylon compound particle is made using melting mechanical blending method, then taken off in the warmed-up pipe mould of injection after cooling rapidly
Mould obtains charge air cooler of the present invention and enters escape pipe finished product.Wherein, the engine speed of double screw extruder is 40Hz in torque rheometer,
Main feeding 15Hz, temperature are 310 DEG C；Pipe mould preheating temperature is 160 DEG C, and cooling and demolding temperature is 50 DEG C.
Embodiment 2
The raw material prepared into escape pipe is weighed by the parts by weight of the embodiment 2 of table 1, the raw material weighed is passed through into torque flow
Become instrument and nylon compound particle is made using melting mechanical blending method, then taken off in the warmed-up pipe mould of injection after cooling rapidly
Mould obtains charge air cooler of the present invention and enters escape pipe finished product.Wherein, the engine speed of double screw extruder is 41Hz in torque rheometer,
Main feeding 16Hz, temperature are 312 DEG C；Pipe mould preheating temperature is 164 DEG C, and cooling and demolding temperature is 52 DEG C.
Embodiment 3
The raw material prepared into escape pipe is weighed by the parts by weight of the embodiment 3 of table 1, the raw material weighed is passed through into torque flow
Become instrument and nylon compound particle is made using melting mechanical blending method, then taken off in the warmed-up pipe mould of injection after cooling rapidly
Mould obtains charge air cooler of the present invention and enters escape pipe finished product.Wherein, the engine speed of double screw extruder is 42Hz in torque rheometer,
Main feeding 17Hz, temperature are 314 DEG C；Pipe mould preheating temperature is 168 DEG C, and cooling and demolding temperature is 54 DEG C.
Embodiment 4
The raw material prepared into escape pipe is weighed by the parts by weight of the embodiment 4 of table 1, the raw material weighed is passed through into torque flow
Become instrument and nylon compound particle is made using melting mechanical blending method, then taken off in the warmed-up pipe mould of injection after cooling rapidly
Mould obtains charge air cooler of the present invention and enters escape pipe finished product.Wherein, the engine speed of double screw extruder is 44Hz in torque rheometer,
Main feeding 18Hz, temperature are 317 DEG C；Pipe mould preheating temperature is 175 DEG C, and cooling and demolding temperature is 57 DEG C.
Embodiment 5
The raw material prepared into escape pipe is weighed by the parts by weight of the embodiment 5 of table 1, the raw material weighed is passed through into torque flow
Become instrument and nylon compound particle is made using melting mechanical blending method, then taken off in the warmed-up pipe mould of injection after cooling rapidly
Mould obtains charge air cooler of the present invention and enters escape pipe finished product.Wherein, the engine speed of double screw extruder is 45Hz in torque rheometer,
Main feeding 20Hz, temperature are 320 DEG C；Pipe mould preheating temperature is 180 DEG C, and cooling and demolding temperature is 60 DEG C.
Comparative example 1
The comparative example is differed only in embodiment 1, and alkali-free glass fibre is free of in the comparative example, other and implementation
Example 1 is identical, is not repeated herein.
Comparative example 2
The comparative example is differed only in embodiment 1, and microcrystalline cellulose is not contained in the comparative example, other and implementation
Example 1 is identical, is not repeated herein.
Comparative example 3
The comparative example is differed only in embodiment 1, and nano Si is not contained in the comparative example3N4, other and embodiment 1
It is identical, it is not repeated herein.
Comparative example 4
The comparative example is differed only in embodiment 1, and microcrystalline cellulose and nano Si are not contained in the comparative example3N4,
Other are same as Example 1, are not repeated herein.
Comparative example 5
The comparative example is differed only in embodiment 1, and alkali-free glass fibre, microcrystalline cellulose are not contained in the comparative example
Element and nano Si3N4, other are same as Example 1, are not repeated herein.
Vehicle intercooler in embodiment 1-5 and comparative example 1-5 is entered into escape pipe progressive to test, test result such as table 2
It is shown.
Table 2：Vehicle intercooler enters the performance test results of escape pipe in embodiment 1-5 and comparative example 1-5
In summary, vehicle intercooler of the present invention enters escape pipe with molecular chain structure is symmetrical, crystallinity is high PA66 resins
For matrix resin, the humidification that alkali-free glass fibre plays skeleton structure type is added, adds microcrystalline cellulose shape on this basis
Into pilotaxitic texture, and add nano Si3N4Be dispersed in matrix resin and absorb impact energy, at the same add dispersant and
Plasticizer, charge air cooler of the present invention can be made to enter escape pipe resistant to elevated temperatures while there is good intensity.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention
The technical staff in field can be made various modifications or supplement to described specific embodiment or be substituted using similar mode,
But without departing from the spiritual of the present invention or surmount scope defined in appended claims.
It is ripe to this area although having been made a detailed description to the present invention and being cited some specific embodiments
Practice for technical staff, as long as it is obvious that can make various changes or correct without departing from the spirit and scope of the present invention.
Claims (8)
1. a kind of vehicle intercooler enters escape pipe, it is characterised in that the charge air cooler, which enters escape pipe, includes the group of following parts by weight
Point：PA66:50-60 parts, alkali-free glass fibre：25-30 parts, microcrystalline cellulose：5-10 parts, nano Si3N4:5-10 parts, disperse
Agent, 5-10 parts, plasticizer：5-10 parts.
2. vehicle intercooler according to claim 1 enters escape pipe, it is characterised in that the alkali-free glass fibre length is
1.5-3.0mm, a diameter of 9-14 μm.
3. vehicle intercooler according to claim 1 enters escape pipe, it is characterised in that the alkali-free glass fibre passes through silicon
Alkane coupling agent pre-processes.
4. vehicle intercooler according to claim 3 enters escape pipe, it is characterised in that the silane coupler is r- ammonia third
Base trimethoxy silane.
5. vehicle intercooler according to claim 1 enters escape pipe, it is characterised in that the particle diameter of the microcrystalline cellulose is
40-50μm。
6. vehicle intercooler according to claim 1 enters escape pipe, it is characterised in that the nano Si3N4It is a diameter of
100nm-120nm。
7. vehicle intercooler according to claim 6 enters escape pipe, it is characterised in that the nano Si3N4First carry out at a high speed
Shearing, carries out sonic oscillation processing again after stirring.
8. vehicle intercooler according to claim 1 enters escape pipe, it is characterised in that the dispersant is acetone, ethanol
One or both of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710654035.0A CN107400357B (en) | 2017-08-03 | 2017-08-03 | Air inlet and outlet pipe of automobile intercooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710654035.0A CN107400357B (en) | 2017-08-03 | 2017-08-03 | Air inlet and outlet pipe of automobile intercooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107400357A true CN107400357A (en) | 2017-11-28 |
| CN107400357B CN107400357B (en) | 2020-03-03 |
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| CN201710654035.0A Active CN107400357B (en) | 2017-08-03 | 2017-08-03 | Air inlet and outlet pipe of automobile intercooler |
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