CN108117742A - High-strength abrasion-proof type automobile using bellows and preparation method thereof - Google Patents
High-strength abrasion-proof type automobile using bellows and preparation method thereof Download PDFInfo
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- CN108117742A CN108117742A CN201810040585.8A CN201810040585A CN108117742A CN 108117742 A CN108117742 A CN 108117742A CN 201810040585 A CN201810040585 A CN 201810040585A CN 108117742 A CN108117742 A CN 108117742A
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- 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
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of high-strength abrasion-proof type automobile using bellowss and preparation method thereof, it uses using polystyrene, polyamide as primary raw material, by adding rational material, melt it is compound obtain the wear-resisting bellows stock material of automobile, it is all that thermoplastic resin, performance are low to solve the problems, such as current material；Compounded mix surface organic matter prepared by the method for the present invention is evenly distributed, and with reactivity, the dispersiveness of inorganic particulate in the plastic is not only promoted, but also is beneficial to form stable cross-linked network between organic matter, more it is mainly, it will not forming properties defect point after micromolecular compound reaction；The wear-resisting bellows of automobile of preparation has outstanding machinability, with more good wear-resisting property, beneficial to industrial applications.
Description
Technical field
The invention belongs to technical field of automobile accessories, and in particular to a kind of high-strength abrasion-proof type automobile using bellows and its system
Preparation Method.
Background technology
Using single pass nylon tube, bellows is mainly used to connect oil pipe, cooling water pipe, snorkel in general automobile
Machine oil pipe, canister connecting tube air hose etc., while pipe clamp can be set on bellows, one end of the pipe clamp is assemblied on pipe,
The other end is then lived by Interal fixation, so that bellows has also obtained fixation；Since pipe clamp is directly anchored to the ripple of bellows
Duan Shang, the position of pipe clamp are not fixed, and can be slid after assembling and axial float occurs, cause bellows unstable.
The content of the invention
The object of the present invention is to provide wear-resisting bellows of a kind of automobile and preparation method thereof, with excellent in strength and well
Wearability.
To achieve the above object of the invention, the technical solution adopted by the present invention is：
A kind of wear-resisting bellows of automobile is prepared by plastics composite by extruder extrusion；The system of the plastics composite
Preparation Method comprises the following steps：
(1) mixed again with amino-terminated polyethylene glycol after mixing molybdenum disulfide, mica powder with ethyl alcohol, then stirring is lower adds
Enter ethyl orthosilicate, when 50 DEG C of stirrings 2 are small, add nanomete talc powder and n-propylamine, continue stirring 1 it is small when after filter is obtained by filtration
Then filter cake is obtained filler by cake when 125 DEG C of processing 0.5 are small；
(2) octadecyl methyl acrylate, butyl borate, paraffin, acetone are mixed, stirs 10~20 minutes, is subsequently added into
Maleic anhydride；When 55 DEG C of stirrings 1 are small；Then add in barium sulfate, continue stirring 1 it is small when after, under stirring in 75 DEG C processing 0.5 it is small when
Obtain modifying agent；
(3) polystyrene, polyamide, polytetrafluoroethylene (PTFE) with nano zine oxide are uniformly mixed, through screw rod melt-processed, are prepared into
To olefin particles；The temperature of screw rod melt-processed is 190~210 DEG C, and rotating speed is 260~270rpm；
（4）Olefin particles, filler with modifying agent are uniformly mixed, plastics composite is obtained by twin-screw melting extrusion；It is described
Processing temperature during twin-screw melting extrusion is 200~220 DEG C, and rotating speed is 310~330rpm, the draw ratio of double screw extruder
55。
The invention also discloses the preparation methods of the wear-resisting bellows of above-mentioned automobile, comprise the following steps：
(1) mix with amino-terminated polyethylene glycol after mixing ferric sulfate molybdenum disulfide, mica powder with ethyl alcohol, then stir again
Mix lower addition ethyl orthosilicate, when 50 DEG C of stirrings 2 are small, add nanomete talc powder and n-propylamine, continue stirring 1 it is small when after filter
Filter cake is obtained, filter cake is then obtained into filler when 125 DEG C of processing 0.5 are small；
(2) octadecyl methyl acrylate, butyl borate, paraffin, acetone are mixed, stirs 10~20 minutes, is subsequently added into
Maleic anhydride；When 55 DEG C of stirrings 1 are small；Then add in barium sulfate, continue stirring 1 it is small when after, under stirring in 75 DEG C processing 0.5 it is small when
Obtain modifying agent；
(3) polystyrene, polyamide, polytetrafluoroethylene (PTFE) with nano zine oxide are uniformly mixed, through screw rod melt-processed, are prepared into
To olefin particles；The temperature of screw rod melt-processed is 190~210 DEG C, and rotating speed is 260~270rpm；
（4）Olefin particles, filler with modifying agent are uniformly mixed, plastics composite is obtained by twin-screw melting extrusion；It is described
Processing temperature during twin-screw melting extrusion is 200~220 DEG C, and rotating speed is 310~330rpm, the draw ratio of double screw extruder
55；
（5）The wear-resisting bellows of automobile is prepared by extruder extrusion in plastics composite；Melting temperature is during above-mentioned extrusion
220~250 DEG C, rotating speed is 160~180rpm.
The mold that the present invention prepares the wear-resisting bellows of automobile is prepared as the prior art, and disclosed structure can be with according to the present invention
It is simply prepared using conventional method.
In above-mentioned technical proposal, in step (1), molybdenum disulfide, mica powder, ethyl alcohol, amino-terminated polyethylene glycol, positive silicon
Acetoacetic ester, nanomete talc powder, the mass ratio of n-propylamine are 10: 4: 50: 1: 4: 3: 3.Filler modified is that plastics possess superperformance
Key, wherein compatibility, dispersiveness and interfacial effect and the performance of filler in itself is the material impact factor of modified result,
By rational preparation process and organic-inorganic modification, obtained filler for polystyrene, it is polyamide modified can
Obtain excellent performance.
In above-mentioned technical proposal, in step (2), octadecyl methyl acrylate, butyl borate, paraffin, acetone, horse
Carry out acid anhydrides, the mass ratio of barium sulfate is 10: 5: 0.3: 30: 3: 2.Plastic pellet is complicated compound system, and modifying agent is organic
Inorganic interfacial effect plays good essential component, and new system disclosed by the invention can improve filler, small molecule exists
It is well dispersed in polystyrene, polyamide main body, wear-resisting property can be played.
In plastics research and production process, usually using inorganic additive, this can not only reduce the cost of product, and
Some performances of plastic products can also be improved；However, since inorganic filler and organic polymer are in chemical constitution and physical aspect
On there is significant difference, the two lacks compatibility, often make plastic products mechanical property and moulding processability by
To influence.The present invention is by adding in the modified filler and modifying agent that especially compound, so as to improve the comprehensive of composite plastics material
Close performance.
In above-mentioned technical proposal, in step (3), polystyrene, polyamide, the quality of polytetrafluoroethylene (PTFE) and nano zine oxide
Than for 3: 10: 2: 1；It can be nylon 6 or nylon66 fiber the method comprises the steps of firstly, preparing polymer-modified, ensure the property of main material
It can uniformity.
In above-mentioned technical proposal, in step (4), the mass ratio of olefin particles, filler and modifying agent is 100: 18: 15；It will
The compounded mix of cladding organic matter layer is mixed with olefin particles, modifying agent, and under micromolecular compound effect, modifying agent is for alkene
Hydrocarbon, amide form crosslinking, greatly improve its mechanical property, while obtain good machinability and wearability.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
（1）The present invention is used using polystyrene, polyamide as primary raw material, and by adding rational material, melting is compound to be obtained
The wear-resisting bellows stock material of automobile, it is all that thermoplastic resin, performance are low to solve the problems, such as current material.
（2）The invention coats organic matter in surface of inorganic particles, prepared according to the methods of the invention compound to fill out
Material surface organic matter is evenly distributed, and has reactivity, not only promotes the dispersiveness of inorganic particulate in the plastic, but also
Beneficial to stable cross-linked network is formed between organic matter, more it is mainly, it will not forming properties defect after micromolecular compound reaction
Point.
（3）The wear-resisting bellows of automobile prepared by the present invention has outstanding anti-flammability, with more good processing performance, and
And also there is higher wear-resistant strength than existing pipe, beneficial to industrial applications.
Description of the drawings
Fig. 1 is the wear-resisting bellows structure schematic diagram of automobile of the present invention；
Wherein, 1, tube body, 2, ripple.
Specific embodiment
With reference to embodiment, the invention will be further described：
Embodiment one
Referring to attached drawing 1, a kind of wear-resisting bellows of automobile, including tube body 1, tube wall is equipped with ripple 2, structure be it is existing,
Preparation method comprises the following steps：
(1) mix with amino-terminated polyethylene glycol after mixing ferric sulfate molybdenum disulfide, mica powder with ethyl alcohol, then stir again
Mix lower addition ethyl orthosilicate, when 50 DEG C of stirrings 2 are small, add nanomete talc powder and n-propylamine, continue stirring 1 it is small when after filter
Filter cake is obtained, filter cake is then obtained into filler when 125 DEG C of processing 0.5 are small；It is molybdenum disulfide, mica powder, ethyl alcohol, amino-terminated
Polyethylene glycol, ethyl orthosilicate, nanomete talc powder, n-propylamine mass ratio be 10: 4: 50: 1: 4: 3: 3
(2) octadecyl methyl acrylate, butyl borate, paraffin, acetone are mixed, stirs 15 minutes, is subsequently added into Malaysia
Acid anhydrides；When 55 DEG C of stirrings 1 are small；Then add in barium sulfate, continue stirring 1 it is small when after, under stirring in 75 DEG C processing 0.5 it is small when obtain
Modifying agent；Octadecyl methyl acrylate, butyl borate, paraffin, acetone, maleic anhydride, the mass ratio of barium sulfate are 10:
5∶0.3∶30∶3∶2。
(3) polystyrene, PA6, polytetrafluoroethylene (PTFE) with nano zine oxide are uniformly mixed, through screw rod melt-processed, prepared
Obtain olefin particles；The temperature of screw rod melt-processed is 190~210 DEG C, rotating speed 260rpm；Polystyrene, polyamide, poly- four
The mass ratio of vinyl fluoride and nano zine oxide is 3: 10: 2: 1
（4）Olefin particles, filler with modifying agent are uniformly mixed, plastics composite is obtained by twin-screw melting extrusion；It is described
Processing temperature during twin-screw melting extrusion is 200~220 DEG C, rotating speed 310rpm, the draw ratio 55 of double screw extruder；Alkene
The mass ratio of hydrocarbon particle, filler and modifying agent is 100: 18: 15；
（5）The wear-resisting bellows of automobile is prepared by extruder extrusion in plastics composite；Melting temperature is during above-mentioned extrusion
220~250 DEG C, rotating speed 180rpm.Mold is prepared as the prior art, and conventional side may be employed in disclosed structure according to the present invention
Method is simply prepared.
It is tested according to TL52655-B, the glass transition temperature of the above-mentioned wear-resisting bellows of automobile is 132 DEG C, and oxygen index (OI) is
31, tensile strength 39N/mm2, elongation at break 163%, fire resistant oil gas, five cycle, surface without open bubble, bending strength
42MPa, 20 DEG C of wearing coefficients are 0.05, and dry type on-slip coefficient is 0.68.
Embodiment two
A kind of wear-resisting bellows of automobile, structure is as embodiment one；Its preparation method comprises the following steps：
(1) mix with amino-terminated polyethylene glycol after mixing ferric sulfate molybdenum disulfide, mica powder with ethyl alcohol, then stir again
Mix lower addition ethyl orthosilicate, when 50 DEG C of stirrings 2 are small, add nanomete talc powder and n-propylamine, continue stirring 1 it is small when after filter
Filter cake is obtained, filter cake is then obtained into filler when 125 DEG C of processing 0.5 are small；It is molybdenum disulfide, mica powder, ethyl alcohol, amino-terminated
Polyethylene glycol, ethyl orthosilicate, nanomete talc powder, n-propylamine mass ratio be 10: 4: 50: 1: 4: 3: 3
(2) octadecyl methyl acrylate, butyl borate, paraffin, acetone are mixed, stirs 10 minutes, is subsequently added into Malaysia
Acid anhydrides；When 55 DEG C of stirrings 1 are small；Then add in barium sulfate, continue stirring 1 it is small when after, under stirring in 75 DEG C processing 0.5 it is small when obtain
Modifying agent；Octadecyl methyl acrylate, butyl borate, paraffin, acetone, maleic anhydride, the mass ratio of barium sulfate are 10:
5∶0.3∶30∶3∶2。
(3) polystyrene, PA66, polytetrafluoroethylene (PTFE) with nano zine oxide are uniformly mixed, through screw rod melt-processed, prepared
Obtain olefin particles；The temperature of screw rod melt-processed is 190~210 DEG C, rotating speed 270rpm；Polystyrene, polyamide, poly- four
The mass ratio of vinyl fluoride and nano zine oxide is 3: 10: 2: 1
（4）Olefin particles, filler with modifying agent are uniformly mixed, plastics composite is obtained by twin-screw melting extrusion；It is described
Processing temperature during twin-screw melting extrusion is 200~220 DEG C, rotating speed 310rpm, the draw ratio 55 of double screw extruder；Alkene
The mass ratio of hydrocarbon particle, filler and modifying agent is 100: 18: 15；
（5）The wear-resisting bellows of automobile is prepared by extruder extrusion in plastics composite；Melting temperature is during above-mentioned extrusion
220~250 DEG C, rotating speed 160rpm.Mold is prepared as the prior art, and conventional side may be employed in disclosed structure according to the present invention
Method is simply prepared.
It is tested according to TL52655-B, the glass transition temperature of the above-mentioned wear-resisting bellows of automobile is 130 DEG C, and oxygen index (OI) is
31, tensile strength 37N/mm2, elongation at break 169%, fire resistant oil gas, five cycle, surface without open bubble, bending strength
40MPa, 20 DEG C of wearing coefficients are 0.05, and dry type on-slip coefficient is 0.67.
Embodiment three
A kind of wear-resisting bellows of automobile, structure is as embodiment one；Its preparation method comprises the following steps：
(1) mix with amino-terminated polyethylene glycol after mixing ferric sulfate molybdenum disulfide, mica powder with ethyl alcohol, then stir again
Mix lower addition ethyl orthosilicate, when 50 DEG C of stirrings 2 are small, add nanomete talc powder and n-propylamine, continue stirring 1 it is small when after filter
Filter cake is obtained, filter cake is then obtained into filler when 125 DEG C of processing 0.5 are small；It is molybdenum disulfide, mica powder, ethyl alcohol, amino-terminated
Polyethylene glycol, ethyl orthosilicate, nanomete talc powder, n-propylamine mass ratio be 10: 4: 50: 1: 4: 3: 3
(2) octadecyl methyl acrylate, butyl borate, paraffin, acetone are mixed, stirs 20 minutes, is subsequently added into Malaysia
Acid anhydrides；When 55 DEG C of stirrings 1 are small；Then add in barium sulfate, continue stirring 1 it is small when after, under stirring in 75 DEG C processing 0.5 it is small when obtain
Modifying agent；Octadecyl methyl acrylate, butyl borate, paraffin, acetone, maleic anhydride, the mass ratio of barium sulfate are 10:
5∶0.3∶30∶3∶2。
(3) polystyrene, PA6, polytetrafluoroethylene (PTFE) with nano zine oxide are uniformly mixed, through screw rod melt-processed, prepared
Obtain olefin particles；The temperature of screw rod melt-processed is 190~210 DEG C, rotating speed 260rpm；Polystyrene, polyamide, poly- four
The mass ratio of vinyl fluoride and nano zine oxide is 3: 10: 2: 1
（4）Olefin particles, filler with modifying agent are uniformly mixed, plastics composite is obtained by twin-screw melting extrusion；It is described
Processing temperature during twin-screw melting extrusion is 200~220 DEG C, rotating speed 310rpm, the draw ratio 55 of double screw extruder；Alkene
The mass ratio of hydrocarbon particle, filler and modifying agent is 100: 18: 15；
（5）The wear-resisting bellows of automobile is prepared by extruder extrusion in plastics composite；Melting temperature is during above-mentioned extrusion
220~250 DEG C, rotating speed 160rpm.Mold is prepared as the prior art, and conventional side may be employed in disclosed structure according to the present invention
Method is simply prepared.
It is tested according to TL52655-B, the glass transition temperature of the above-mentioned wear-resisting bellows of automobile is 132 DEG C, and oxygen index (OI) is
32, tensile strength 38N/mm2, elongation at break 167%, fire resistant oil gas, five cycle, surface without open bubble, bending strength
41MPa, 20 DEG C of wearing coefficients are 0.05, and dry type on-slip coefficient is 0.68.
Comparative example one
A kind of motor bellows, structure is as embodiment one；Its preparation method comprises the following steps：
(1) KH550 mixing is added after mixing molybdenum disulfide, mica powder, nanomete talc powder with ethyl alcohol, 50 DEG C of stirrings 2 are small
When, filter cake is then obtained by filtration, filter cake is then obtained into filler when 125 DEG C of processing 0.5 are small；Molybdenum disulfide, mica powder, second
Alcohol, nanomete talc powder, the mass ratio of KH550 are 10: 8: 50: 3: 1；
(2) octadecyl methyl acrylate, butyl borate, paraffin, acetone are mixed, stirs 20 minutes, is subsequently added into horse
Carry out acid anhydrides；When 55 DEG C of stirrings 1 are small；Then add in barium sulfate, continue stirring 1 it is small when after, under stirring in 75 DEG C processing 0.5 it is small when obtain
To modifying agent；Octadecyl methyl acrylate, butyl borate, paraffin, acetone, maleic anhydride, the mass ratio of barium sulfate are
10∶5∶0.3∶30∶3∶2。
(3) polystyrene, PA6, polytetrafluoroethylene (PTFE) with nano zine oxide are uniformly mixed, through screw rod melt-processed, prepared
Obtain olefin particles；The temperature of screw rod melt-processed is 190~210 DEG C, rotating speed 270rpm；Polystyrene, polyamide, poly- four
The mass ratio of vinyl fluoride and nano zine oxide is 3: 10: 2: 1
（4）Olefin particles, filler with modifying agent are uniformly mixed, plastics composite is obtained by twin-screw melting extrusion；It is described
Processing temperature during twin-screw melting extrusion is 200~220 DEG C, rotating speed 310rpm, the draw ratio 55 of double screw extruder；Alkene
The mass ratio of hydrocarbon particle, filler and modifying agent is 100: 18: 15；
（5）The wear-resisting bellows of automobile is prepared by extruder extrusion in plastics composite；Melting temperature is during above-mentioned extrusion
220~250 DEG C, rotating speed 180rpm.Mold is prepared as the prior art, and conventional side may be employed in disclosed structure according to the present invention
Method is simply prepared.
It is tested according to TL52655-B, the glass transition temperature of the above-mentioned wear-resisting bellows of automobile is 115 DEG C, and oxygen index (OI) is
27, tensile strength 32N/mm2, elongation at break 152%, fire resistant oil gas, five cycle, surface without open bubble, bending strength
37MPa, 20 DEG C of wearing coefficients are 0.09, and dry type on-slip coefficient is 0.48.
Comparative example two
A kind of motor bellows, do not add barium sulfate and nano zine oxide, remaining preparation method is consistent with embodiment one.
It is tested according to TL52655-B, the glass transition temperature of the above-mentioned wear-resisting bellows of automobile is 111 DEG C, and oxygen index (OI) is
27, tensile strength 31N/mm2, elongation at break 133%, fire resistant oil gas, five cycle, surface without open bubble, bending strength
35MPa, 20 DEG C of wearing coefficients are 0.09, and dry type on-slip coefficient is 0.52.
Claims (10)
1. a kind of wear-resisting bellows of automobile, which is characterized in that the wear-resisting bellows of automobile passes through extruder by plastics composite
Extrusion is prepared；The preparation method of the plastics composite comprises the following steps：
(1) mixed again with amino-terminated polyethylene glycol after mixing molybdenum disulfide, mica powder with ethyl alcohol, then stirring is lower adds
Enter ethyl orthosilicate, when 50 DEG C of stirrings 2 are small, add nanomete talc powder and n-propylamine, continue stirring 1 it is small when after filter is obtained by filtration
Then filter cake is obtained filler by cake when 125 DEG C of processing 0.5 are small；
(2) octadecyl methyl acrylate, butyl borate, paraffin, acetone are mixed, stirs 10~20 minutes, is subsequently added into
Maleic anhydride；When 55 DEG C of stirrings 1 are small；Then add in barium sulfate, continue stirring 1 it is small when after, under stirring in 75 DEG C processing 0.5 it is small when
Obtain modifying agent；
(3) polystyrene, polyamide, polytetrafluoroethylene (PTFE) with nano zine oxide are uniformly mixed, through screw rod melt-processed, are prepared into
To olefin particles；The temperature of screw rod melt-processed is 190~210 DEG C, and rotating speed is 260~270rpm；
（4）Olefin particles, filler with modifying agent are uniformly mixed, plastics composite is obtained by twin-screw melting extrusion；It is described
Processing temperature during twin-screw melting extrusion is 200~220 DEG C, and rotating speed is 310~330rpm, the draw ratio of double screw extruder
55。
2. the wear-resisting bellows of automobile according to claim 1, which is characterized in that in step (1), molybdenum disulfide, mica powder, second
Alcohol, amino-terminated polyethylene glycol, ethyl orthosilicate, nanomete talc powder, the mass ratio of n-propylamine are 10: 4: 50: 1: 4: 3: 3.
3. the wear-resisting bellows of automobile according to claim 1, which is characterized in that in step (2), octadecyl methyl acrylic acid
Ester, butyl borate, paraffin, acetone, maleic anhydride, the mass ratio of barium sulfate are 10: 5: 0.3: 30: 3: 2.
4. the wear-resisting bellows of automobile according to claim 1, which is characterized in that in step (3), polystyrene, polyamide gather
The mass ratio of tetrafluoroethene and nano zine oxide is 3: 10: 2: 1.
5. the wear-resisting bellows of automobile according to claim 1, which is characterized in that in step (4), olefin particles, filler are with changing
Property agent mass ratio be 100: 18: 15.
6. the preparation method of the wear-resisting bellows of automobile described in claim 1, comprises the following steps：
(1) mix with amino-terminated polyethylene glycol after mixing ferric sulfate molybdenum disulfide, mica powder with ethyl alcohol, then stir again
Mix lower addition ethyl orthosilicate, when 50 DEG C of stirrings 2 are small, add nanomete talc powder and n-propylamine, continue stirring 1 it is small when after filter
Filter cake is obtained, filter cake is then obtained into filler when 125 DEG C of processing 0.5 are small；
(2) octadecyl methyl acrylate, butyl borate, paraffin, acetone are mixed, stirs 10~20 minutes, is subsequently added into
Maleic anhydride；When 55 DEG C of stirrings 1 are small；Then add in barium sulfate, continue stirring 1 it is small when after, under stirring in 75 DEG C processing 0.5 it is small when
Obtain modifying agent；
(3) polystyrene, polyamide, polytetrafluoroethylene (PTFE) with nano zine oxide are uniformly mixed, through screw rod melt-processed, are prepared into
To olefin particles；The temperature of screw rod melt-processed is 190~210 DEG C, and rotating speed is 260~270rpm；
（4）Olefin particles, filler with modifying agent are uniformly mixed, plastics composite is obtained by twin-screw melting extrusion；It is described
Processing temperature during twin-screw melting extrusion is 200~220 DEG C, and rotating speed is 310~330rpm, the draw ratio of double screw extruder
55；
（5）The wear-resisting bellows of automobile is prepared by extruder extrusion in plastics composite；Melting temperature is during above-mentioned extrusion
220~250 DEG C, rotating speed is 160~180rpm.
7. preparation method according to claim 6, which is characterized in that in step (1), molybdenum disulfide, mica powder, ethyl alcohol,
Amino-terminated polyethylene glycol, ethyl orthosilicate, nanomete talc powder, the mass ratio of n-propylamine are 10: 4: 50: 1: 4: 3: 3.
8. preparation method according to claim 6, which is characterized in that in step (2), octadecyl methyl acrylate,
Butyl borate, paraffin, acetone, maleic anhydride, the mass ratio of barium sulfate are 10: 5: 0.3: 30: 3: 2.
9. preparation method according to claim 6, which is characterized in that in step (3), polystyrene, polyamide, polytetrafluoro
The mass ratio of ethylene and nano zine oxide is 3: 10: 2: 1.
10. preparation method according to claim 6, which is characterized in that in step (4), olefin particles, filler and modifying agent
Mass ratio be 100: 18: 15.
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