CN106800672A - A kind of high abrasion high tenacity chassis - Google Patents
A kind of high abrasion high tenacity chassis Download PDFInfo
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- CN106800672A CN106800672A CN201611243170.8A CN201611243170A CN106800672A CN 106800672 A CN106800672 A CN 106800672A CN 201611243170 A CN201611243170 A CN 201611243170A CN 106800672 A CN106800672 A CN 106800672A
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- parts
- chassis
- polypropylene
- high tenacity
- high abrasion
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
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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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of high abrasion high tenacity chassis, by reasonable disposition composition, by adding grafted monomers and modified Ca3 (Si3O9), and rationally addition SiO2 greatly enhances anti-wear performance, toughness and the shock resistance of material；Rational preparation method, improves the performance enhancement effect of altered contents, prevents process from reduce performance, further improves anti-wear performance, toughness and the shock resistance of material.
Description
Technical field
The present invention relates to chassis field, and in particular to a kind of high abrasion high tenacity chassis.
Background technology
Automobile chassis is made up of power train, running gear, steering system and the part of braking system four.Chassis effect is to support, install
Automobile engine and its each part, assembly, shaping automobile it is moulded, and receive the power of engine, automobile is produced fortune
It is dynamic, it is ensured that normally travel.Vehicle can splash handstone, the strength and your speed of stone impact base plate during traveling
It is directly proportional, general 10 grams of the handstone impulsive force when speed per hour is up to 80 kilometers can reach 100 times of own wt.It is enough to break up 30
Paint film below micron, paint film is once breached, and corrosion just expands since fault and from iron plate inside is slow, and, automobile
Chassis the impact and the friction between miscellaneous part of automobile this body structure are also suffered from during running car, it is desirable to
Automobile chassis has preferable toughness and anti-wear performance, absorbs impulsive force and resistance abrasion that vibrations etc. bring, it is therefore necessary to
Existing chassis is improved.
The content of the invention
For the problem present on, the present invention provides a kind of high abrasion high tenacity chassis, with anti-wear performance higher
And toughness
The present invention realizes that the scheme of above-mentioned purpose is：A kind of high abrasion high tenacity chassis, it is characterised in that：The chassis
Composition is by including：50~65 parts of polypropylene, 3~5 parts of toughener, 1~3 part of antioxidant, 1~3 part of anti-impact modifier, heat is steady
Determine 2~3 parts of agent, 5~10 parts of styrene, 3~5 parts of butyl methacrylate, 3~5 parts of maleic anhydride, Ca3(Si3O9) 5~10
Part, SiO24~8 parts.
Maleic anhydride is generally used in the prior art as polyacrylic grafted monomers, but, grafting rate is relatively low, in grafting
During chain rupture situation than more serious, not only influence the performance of material, can also significantly consume polyacrylic consumption.And this hair
Bright use various of monomer is grafted, and the Ca3 (Si3O9) of addition can greatly improve the activity of maleic anhydride and then improve grafting
Rate, and the addition of butyl methacrylate is that, by the end of in polypropylene, can greatly improve the tough of final material as flexible chain
Property.SiO2 has stronger anti-wear performance as inorganic material in itself, and SiO2 is added in polypropylene as reinforcement, Ji Nengzeng
The anti-wear performance of strong material, can absorb portion of energy when material is clashed into again, prevent the strand of polypropylene material direct
Fracture, improves the shock resistance of material.
Further, the polypropylene is multi-monomer grafting polypropylene.
Further, the polyacrylic grafted monomers of the multi-monomer grafting are styrene, maleic anhydride, methacrylic acid fourth
Ester.After the glycerol polymerization of many monomers, more double bonds can be produced to turn into and to trigger growth point, grafted chain easily forms cross-linked structure, table
Face forms the grafting layer with three-dimensional-structure, it is possible to increase polyacrylic such as solvent resistance, scratch resistance performance.
Further, the Ca3(Si3O9) it is modified Ca3(Si3O9)。
Further, the Ca3(Si3O9) it is the modified Ca of 3- aminopropyl triethoxysilanes3(Si3O9)。
Ca3(Si3O9) be in itself inorganic material, with very strong polarity, and polypropylene material as non-polar material with
Ca3(Si3O9) compatibility be not fine, therefore, if not to Ca3(Si3O9) be modified, the Ca of addition3(Si3O9) on the contrary
The performance of material can be reduced, using 3- aminopropyl triethoxysilanes to Ca3(Si3O9) be modified and can strengthen Ca3(Si3O9)
With polyacrylic compatibility, and using 3- aminopropyl triethoxysilanes also to Ca3(Si3O9) modified effect preferably, can be with
Make Ca3(Si3O9) there is optimal compatibility in polypropylene matrix.
Further, the SiO2It is fibrous SiO2, SiO2Length be 200~300 μm, draw ratio be 50~80.
When material is impacted or is rubbed, if the length of SiO2 crosses conference with draw ratio to cause to be easy to fracture,
Extracted out in the base equivalent to SiO2, form larger defect, and if length and the smaller SiO2 that can cause monomer of major diameter
It is relatively thick, directly space can be formed in intrinsic silicon, the raising of material property is unfavorable on the contrary.
A kind of preparation method on high abrasion high tenacity chassis, comprises the following steps：
(1) in the case where gas is protected, polypropylene, styrene, butyl methacrylate, maleic anhydride are put into reactor and are pressurizeed
Prepare multi-monomer grafting polypropylene；
(2) by 3- aminopropyl triethoxysilanes and Ca3(Si3O9) mixed at high speed, modified Ca is obtained after insulation3(Si3O9)；
(3) by multi-monomer grafting polypropylene, modified Ca3(Si3O9), toughener, it is antioxidant, anti-impact modifier, thermally-stabilised
Agent, SiO2Extrusion molding after mixing, obtains high abrasion high tenacity chassis after machining.
Further, it is CO that gas is protected described in step (1)2, the technique for preparing of pressurizeing is 7~10MPa of pressure, temperature 90
~100 DEG C.
Microcellular structure can be formed under CO2 atmosphere, certain pressure and temperature, this microcellular structure can be that material is formed
Similar honeycomb, can simultaneously improve the toughness and shock resistance of material.
Further, the mixing 500~600r/min of rotating speed, 5~7min of incorporation time of step (2) high speed mixing.
Use mixed at high speed 3- aminopropyl triethoxysilanes and Ca3(Si3O9) time should not be long, due to Ca3(Si3O9)
It is inorganic material, so if the long Ca of mixed at high speed3(Si3O9) between agglomeration occurs on the contrary, be added to polyacrylic
After matrix, it is difficult dispersed to play humidification in the base.
Further, the extrusion molding process is：Divide 3 times and be sequentially extruded, extrusion temperature is respectively：180~185 DEG C,
190~195 DEG C, 200~205 DEG C.
The mobility of material when certain temperature should be kept to ensure extrusion during extrusion, that conveniently processes enters
OK, ensure that temperature is unlikely to too high again, causing the surface roughness of material during extruding increases, surface discolouration, or even
Cause the ingredient breakdown of material internal, substantially reduce the performance of material, therefore extruded using substep, rationally control extrusion temperature,
Performance degradation of the material in extrusion can be prevented.
Beneficial effects of the present invention are：
(1) by adding grafted monomers and modified Ca3(Si3O9), and rationally addition SiO2 greatly enhances the wearability of material
Energy, toughness and shock resistance；
(2) rational preparation method, improves the performance enhancement effect of altered contents, prevents process from reduce performance,
Further improve anti-wear performance, toughness and the shock resistance of material.
Specific embodiment
The following is specific embodiment of the invention, technical scheme is further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1
Under CO2 protection gas, by 5 parts of styrene, 5 parts of butyl methacrylate, 3 parts of maleic anhydride, 65 parts of polypropylene is put
Enter and be forced into 7Mpa in reactor, multi-monomer grafting polypropylene is prepared at 100 DEG C of temperature, by 3- aminopropyl triethoxysilanes with
Ca3(Si3O9) mixed at high speed, mix rotating speed 500r/min, incorporation time 5min, modified Ca is obtained after insulation3(Si3O9), then will
3 parts of toughener, 1 part of antioxidant, 1 part of anti-impact modifier, 2 parts of heat stabilizer, 4 parts of length are 200 μm, and draw ratio is 50 fibre
Dimension shape SiO2, dividing 3 times after mixing and be sequentially extruded, extrusion temperature is respectively：180 DEG C, 195 DEG C, 200 DEG C, obtained after machining
High abrasion high tenacity chassis.
Embodiment 2
Under CO2 protection gas, by 10 parts of styrene, 5 parts of butyl methacrylate, 3 parts of maleic anhydride, 50 parts of polypropylene is put
Enter and be forced into 10Mpa in reactor, multi-monomer grafting polypropylene is prepared at 90 DEG C of temperature, by 3- aminopropyl triethoxysilanes with
Ca3(Si3O9) mixed at high speed, mix rotating speed 600r/min, incorporation time 7min, modified Ca is obtained after insulation3(Si3O9), then will
5 parts of toughener, 3 parts of antioxidant, 3 parts of anti-impact modifier, 3 parts of heat stabilizer, 8 parts of length are 200~300 μm, and draw ratio is
80 fibrous SiO2, dividing 3 times after mixing and be sequentially extruded, extrusion temperature is respectively：185 DEG C, 190 DEG C, 205 DEG C, machining
After obtain high abrasion high tenacity chassis.
Embodiment 3
Under CO2 protection gas, by 8 parts of styrene, 4 parts of butyl methacrylate, 4 parts of maleic anhydride, 55 parts of polypropylene is put
Enter and be forced into 8Mpa in reactor, multi-monomer grafting polypropylene is prepared at 95 DEG C of temperature, by 3- aminopropyl triethoxysilanes with
Ca3(Si3O9) mixed at high speed, mix rotating speed 550r/min, incorporation time 6min, modified Ca is obtained after insulation3(Si3O9), then will
4 parts of toughener, 2 parts of antioxidant, 2 parts of anti-impact modifier, 2 parts of heat stabilizer, 7 parts of length are 250 μm, and draw ratio is 70 fibre
Dimension shape SiO2, dividing 3 times after mixing and be sequentially extruded, extrusion temperature is respectively：183 DEG C, 191 DEG C, 201 DEG C, obtained after machining
High abrasion high tenacity chassis.
Embodiment 4
Under CO2 protection gas, by 5 parts of styrene, 4 parts of butyl methacrylate, 4 parts of maleic anhydride, 57 parts of polypropylene is put
Enter and be forced into 9Mpa in reactor, multi-monomer grafting polypropylene is prepared at 90 DEG C of temperature, by 3- aminopropyl triethoxysilanes with
Ca3(Si3O9) mixed at high speed, mix rotating speed 500r/min, incorporation time 6min, modified Ca is obtained after insulation3(Si3O9), then will
4 parts of toughener, 3 parts of antioxidant, 1 part of anti-impact modifier, 2 parts of heat stabilizer, 6 parts of length are 200 μm, and draw ratio is 80 fibre
Dimension shape SiO2, dividing 3 times after mixing and be sequentially extruded, extrusion temperature is respectively：180 DEG C, 192 DEG C, 203 DEG C, obtained after machining
High abrasion high tenacity chassis.
Embodiment 5
Under CO2 protection gas, by 5 parts of styrene, 4 parts of butyl methacrylate, 5 parts of maleic anhydride, 57 parts of polypropylene is put
Enter and be forced into 10Mpa in reactor, multi-monomer grafting polypropylene is prepared at 96 DEG C of temperature, by 3- aminopropyl triethoxysilanes with
Ca3(Si3O9) mixed at high speed, mix rotating speed 560r/min, incorporation time 7min, modified Ca is obtained after insulation3(Si3O9), then will
5 parts of toughener, 1 part of antioxidant, 2 parts of anti-impact modifier, 3 parts of heat stabilizer, 6 parts of length are 260 μm, and draw ratio is 60 fibre
Dimension shape SiO2, dividing 3 times after mixing and be sequentially extruded, extrusion temperature is respectively：185 DEG C, 195 DEG C, 204 DEG C, obtained after machining
High abrasion high tenacity chassis.
Comparative example 1
This comparative example is only that polypropylene is without modified with the difference of embodiment 1.
Comparative example 2
This comparative example is only to be added without Ca with the difference of embodiment 13(Si3O9)。
Comparative example 3
This comparative example is only to be added without SiO with the difference of embodiment 12。
The performance comparison of the embodiment 1~5 of table 1 and comparative example 1~4
Contrasted more than, high tenacity chassis prepared by the present invention has mechanical strength and shock resistance higher.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology belonging to of the 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 spirit of the invention or surmount scope defined in appended claims.
It is skilled to this area although having made a detailed description and being cited some specific embodiments to the present invention
For technical staff, as long as it is obvious that can be made various changes without departing from the spirit and scope of the present invention or corrected.
Claims (10)
1. a kind of high abrasion high tenacity chassis, it is characterised in that：The composition on the chassis includes：50~65 parts of polypropylene, toughness reinforcing
3~5 parts of agent, 1~3 part of antioxidant, 1~3 part of anti-impact modifier, 2~3 parts of heat stabilizer, 5~10 parts of styrene, methyl-prop
3~5 parts of olefin(e) acid butyl ester, 3~5 parts of maleic anhydride, Ca3(Si3O9) 5~10 parts, SiO24~8 parts.
2. a kind of high abrasion high tenacity chassis according to claim 1, it is characterised in that：The polypropylene connects for many monomers
Branch polypropylene.
3. a kind of high abrasion high tenacity chassis according to claim 2, it is characterised in that：The multi-monomer grafting polypropylene
Grafted monomers be styrene, maleic anhydride, butyl methacrylate.
4. a kind of high abrasion high tenacity chassis according to claim 1, it is characterised in that：The Ca3(Si3O9) it is modified
Ca3(Si3O9)。
5. a kind of high abrasion high tenacity chassis according to claim 4, it is characterised in that：The Ca3(Si3O9) it is 3- ammonia
Propyl-triethoxysilicane is modified Ca3(Si3O9)。
6. a kind of high abrasion high tenacity chassis according to claim 1, it is characterised in that：The SiO2It is fibrous SiO2,
SiO2Length be 200~300 μm, draw ratio be 50~80.
7. a kind of preparation method on high abrasion high tenacity chassis as claimed in claim 1, it is characterised in that：Including following step
Suddenly：
(1) in the case where gas is protected, polypropylene, styrene, butyl methacrylate, maleic anhydride are put into preparation of being pressurizeed in reactor
Multi-monomer grafting polypropylene；
(2) by 3- aminopropyl triethoxysilanes and Ca3(Si3O9) mixed at high speed, modified Ca is obtained after insulation3(Si3O9)；
(3) by multi-monomer grafting polypropylene, modified Ca3(Si3O9), toughener, antioxidant, anti-impact modifier, heat stabilizer,
SiO2Extrusion molding after mixing, obtains high abrasion high tenacity chassis after machining.
8. the preparation method on a kind of high abrasion high tenacity chassis according to claim 7, it is characterised in that：In step (1)
The protection gas is CO2, the technique for preparing of pressurizeing is 7~10MPa of pressure, 90~100 DEG C of temperature.
9. the preparation method on a kind of high abrasion high tenacity chassis according to claim 7, it is characterised in that：In step (2)
Mixing 500~the 600r/min of rotating speed, 5~7min of incorporation time of mixed at high speed.
10. the preparation method on a kind of high abrasion high tenacity chassis according to claim 7, it is characterised in that：The extrusion
Forming process is：Divide 3 times and be sequentially extruded, extrusion temperature is respectively：180~185 DEG C, 190~195 DEG C, 200~205 DEG C.
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|---|---|---|---|
| CN201611165888X | 2016-12-16 | ||
| CN201611165888 | 2016-12-16 |
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| CN106800672A true CN106800672A (en) | 2017-06-06 |
| CN106800672B CN106800672B (en) | 2019-09-06 |
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2016
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| CN1323853A (en) * | 2001-06-12 | 2001-11-28 | 华东理工大学 | Rigid particle reinforced and flexibilized polypropylene material and its prepn. method |
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Non-Patent Citations (1)
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