CN110408205A - A kind of heat-resistant antifriction composition and its preparation method and application - Google Patents
A kind of heat-resistant antifriction composition and its preparation method and application Download PDFInfo
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- CN110408205A CN110408205A CN201910681807.9A CN201910681807A CN110408205A CN 110408205 A CN110408205 A CN 110408205A CN 201910681807 A CN201910681807 A CN 201910681807A CN 110408205 A CN110408205 A CN 110408205A
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- antifriction composition
- resistant antifriction
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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
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
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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
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5435—Silicon-containing compounds containing oxygen containing oxygen in a ring
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
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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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
It polishes field the invention belongs to stainless steel surface, and in particular to a kind of heat-resistant antifriction composition and its preparation method and application.The heat-resistant antifriction composition includes: polyimide resin, wear resistant filler, alkyl coupling agent.Abrasive material wire material of the present invention has both excellent heat-resistant antifriction performance, can farthest be reduced the damage to stainless steel product passivating film while improving abrasive filaments working efficiency with higher rotary speed working compared under elevated operating temperature, effectively prevent corroding.
Description
Technical field
Polish field the invention belongs to stainless steel surface, specifically, the present invention relates to a kind of heat-resistant antifriction composition and
Preparation method and application.
Background technique
Stainless steel shows good corrosion resistance because surface has one layer of fine and close oxidation film under atmospheric environment.So
And stainless steel product is in the fabrication process, the technical process such as Yao Jingli bending, welding, adjusting, polishing, to surface passivated membrane (oxygen
Change film) cause different degrees of physical damnification.
In current polishing operation, the polishing abrasive material generallyd use is stainless steel special bowl brush, and milling tools revolving speed exists
10000r/min or more；After polishing, stainless steel product surface damage is larger, corrosion problem easily occurs, seriously affects stainless steel
The commercial qualtity of product.
CN109623638A discloses a kind of stainless steel surface grinding head and milling tools, wherein specifically disclosing stainless steel
Surface grinding head includes the pedestal of non-metallic abrasive silk and the fixed non-metallic abrasive silk, and the non-metallic abrasive silk includes mill
Expect silk matrix and is dispersed in the polishing abrasive grain in the abrasive filaments matrix by setting ratio.The abrasive filaments matrix uses polyamides
Any one of amine, polystyrene or polytetrafluoroethylene (PTFE) are made.However, technical staff has found in practical applications, above-mentioned abrasive material
Silk poor heat resistance, in grinding process process must control operating temperature and polishing speed, reduce polishing working efficiency.
Polyimides has excellent heat resistance, using it as abrasive filaments matrix, though the heat-resisting of abrasive filaments can be effectively improved
Performance, but due to the shadow of polyimides itself heat resistance, the limitation of thermal conductivity and polyimides and inorganic filler associativity
It rings, leads to that polyimides is used to be declined in terms of intensity, toughness, heat resistance for the abrasive filaments of matrix.
Summary of the invention
In order to overcome drawbacks described above, the present invention proposes a kind of new abrasive material wire material, has both excellent heat-resistant antifriction
Can, it can be compared under elevated operating temperature, with higher rotary speed working；While improving abrasive filaments working efficiency, farthest
Reduce the damage to stainless steel product passivating film, effectively prevent corroding.
Heat-resistant antifriction composition of the present invention, comprising: polyimide resin, wear resistant filler, alkyl coupling agent.
Heat-resistant antifriction composition of the present invention is using polyimide resin as matrix, while it is even to add wear resistant filler, alkyl
Join agent, three generates synergistic effect, significantly improves heat-resisting, the wearability of composition, make it in terms of intensity, toughness, heat resistance
It has both excellent.
In some embodiments of the invention, the polyimide resin is polyetherimide PEI and/or gathers equal benzene tetramethyl
Acid imide PMMI.The study found that PEI compares other polyimide resins with PMMI has better property in terms of intensity and toughness
Can, it is more advantageous to the performance for improving composition.
In some embodiments of the invention, the wear resistant filler is selected from silicon carbide, silica, aluminum oxide, oxygen
Change one of zirconium or a variety of；The study found that these wear resistant fillers can generate preferably synergistic effect with alkyl coupling agent, more have
Conducive to the wearability for improving composition.
In some embodiments of the invention, the alkyl coupling agent is sweet selected from phenylamino triethoxysilane, γ-shrink
Oily ether oxygen propyl trimethoxy silicane, 3- aminopropyl triethoxysilane, in 3- methyl allyl acyloxypropyl trimethoxysilane
It is one or more；The study found that being combined by specific coupling agent with above-mentioned wear resistant filler, it can produce preferably collaboration and make
With being more advantageous to and improve the mechanical performance of composition, ageing properties.
In some embodiments of the invention, when the wear resistant filler is aluminum oxide, the alkyl coupling agent is excellent
It is selected as γ-glycidyl ether oxygen propyl trimethoxy silicane；With this condition, the two can produce better synergistic effect, into one
Step promotes the wearability of composition.
In some embodiments of the invention, the heat-resistant antifriction composition includes the component of following parts by weight: polyamides is sub-
50-80 parts of polyimide resin, 10-30 parts of wear resistant filler, 1-10 parts of alkyl coupling agent.By optimizing and revising the usage ratio of each component,
Each component synergistic effect can be utmostly played, the comprehensive performance of composition is improved.
Heat-resistant antifriction composition of the present invention further includes heat filling.The heat filling is selected from carbon nanotube, stone
One of ink, aluminium oxide, boron nitride are a variety of；The addition of heat filling helps to further increase the heat resistance of composition
Energy.
In some embodiments of the invention, the heat-resistant antifriction composition includes the component of following parts by weight: polyamides is sub-
50-80 parts of polyimide resin, 10-30 parts of wear resistant filler, 1-10 parts of alkyl coupling agent, 5-20 parts of heat filling.It is each by optimizing and revising
The usage ratio of component can utmostly play each component synergistic effect, improve the comprehensive performance of composition.
The present invention also provides the preparation methods of above-mentioned heat-resistant antifriction composition, comprising:
(1) wear resistant filler is handled first with alkyl coupling agent, then will treated wear resistant filler and heat filling
It is uniformly mixed, obtains mixed fillers；
(2) polyimide resin is added to dual-screw-stem machine leading portion and carries out melt process, mixed fillers are added to double spiral shells
Bar machine middle section, the polyimide resin of melting are mixed with filler when being pressed against middle section, are squeezed out by end.
In above-mentioned steps (2), the temperature of the melt process is 250-350 DEG C.Processing performance under the conditions of this temperature
Well, stability, the homogeneity for promoting composition are more advantageous to.
The present invention also provides above-mentioned heat-resistant antifriction composition answering in milling tools, heat insulating coat, fire prevention trim panel
With.
The present invention also provides a kind of abrasive filaments, and above-mentioned heat-resistant antifriction composition is used to be prepared.The preparation packet
It includes: resulting composition is heated, stretch, obtain abrasive filaments；Wherein, the stretch ratio is 1:1.2-2.0.Pass through
Optimization to stretch ratio, make abrasive filaments stability, in terms of obtain preferably promoted.
Compared with prior art, heat-resistant antifriction composition of the present invention has excellent wearability and heat-resisting quantity
Energy.It, can be under higher operational temperature conditions, with 2000r/min- using abrasive filaments made from the heat-resistant antifriction composition
8000r/min revolving speed polishes to stainless steel product surface, significantly improves the working efficiency of abrasive filaments.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
This implementation provides a kind of heat-resistant antifriction abrasive filaments, is made of the raw material of following parts by weight: polyetherimide resin PEI
60 parts, 15 parts of heat filling carbon nanotube, 20 parts of wear resistant filler silicon carbide, 5 parts of coupling agent phenylamino triethoxysilane.
Embodiment 2
This implementation provides a kind of heat-resistant antifriction abrasive filaments, is made of the raw material of following parts by weight: polypyromellitimide
65 parts of resin PMMI, 10 parts of heat filling graphite, 20 parts of wear resistant filler aluminum oxide, coupling agent γ-glycidyl ether oxygen third
5 parts of base trimethoxy silane.
Embodiment 3
The present embodiment provides the preparation methods of the heat-resistant antifriction abrasive filaments of embodiment 1 or 2, comprising the following steps:
First wear resistant filler is handled with silane coupling agent, then mixes processed wear resistant filler with heat filling
Uniformly；Polyimide resin is added to dual-screw-stem machine leading portion and carries out melt process, the filler of mixing is added to dual-screw-stem machine
Middle section is sufficiently mixed when the polyimide resin of melting is pressed against middle section with filler, and abrasive filaments crin is squeezed out by end, right
Crin is heated, and is stretched, and abrasive filaments are made.
Compliance test result
Test method specifically: it is polished using milling tools identical stainless steel test article, observation stainless steel test
Product surface condition.
1, using stainless steel special bowl brush as milling tools, polish turn up 8000r/min when, stainless steel test article surface
Damage is big, corrosion problem occurs.
2, using nylon abrasive filaments as milling tools, polish turn up 2000r/min when, abrasive filaments softening or fracture, only
Revolving speed can be reduced to 1000r/min, influence working efficiency.
3, using polyimide abrasive silk as milling tools, polishing revolving speed is worked normally up to 2000r/min or more；And work as
When revolving speed of polishing is 8000r/min, surface is not damaged, and non-corroding problem.
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of heat-resistant antifriction composition characterized by comprising polyimide resin, wear resistant filler, alkyl coupling agent.
2. heat-resistant antifriction composition according to claim 1, which is characterized in that the polyimide resin is polyetherimide
Amine PEI and/or polypyromellitimide PMMI.
3. heat-resistant antifriction composition according to claim 1 or 2, which is characterized in that the wear resistant filler be selected from silicon carbide,
One of silica, aluminum oxide, zirconium oxide are a variety of.
4. heat-resistant antifriction composition according to claim 1 to 3, which is characterized in that the alkyl coupling agent is selected from benzene
Amino triethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy silicane, 3- aminopropyl triethoxysilane, 3- methyl
One of acryloxypropyl trimethoxy silane is a variety of.
5. heat-resistant antifriction composition according to claim 1, which is characterized in that when the wear resistant filler is aluminum oxide
When, the alkyl coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.
6. -5 any heat-resistant antifriction composition according to claim 1, which is characterized in that the heat-resistant antifriction composition packet
Include the component of following parts by weight: 50-80 parts of polyimide resin, 10-30 parts of wear resistant filler, 1-10 parts of alkyl coupling agent.
7. -6 any heat-resistant antifriction composition according to claim 1, which is characterized in that further include heat filling；It is described
Heat filling is selected from one of carbon nanotube, graphite, aluminium oxide, boron nitride or a variety of；
Preferably, the heat-resistant antifriction composition includes the component of following parts by weight: 50-80 parts of polyimide resin wear-resisting is filled out
Expect 10-30 parts, 1-10 parts of alkyl coupling agent, 5-20 parts of heat filling.
8. the preparation method of any heat-resistant antifriction composition of claim 1-7 characterized by comprising
(1) wear resistant filler is handled first with alkyl coupling agent, then wear resistant filler is mixed with heat filling by treated
Uniformly, mixed fillers are obtained；
(2) polyimide resin is added to dual-screw-stem machine leading portion and carries out melt process, mixed fillers are added to dual-screw-stem machine
Middle section, the polyimide resin of melting are mixed with filler when being pressed against middle section, are squeezed out by end.
9. heat-resistant antifriction composition as claimed in claim 1 to 7 answering in milling tools, heat insulating coat, fire prevention trim panel
With.
10. a kind of abrasive filaments, which is characterized in that be prepared using heat-resistant antifriction composition as claimed in claim 1 to 7
's.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910681807.9A CN110408205B (en) | 2019-07-26 | 2019-07-26 | Heat-resistant and wear-resistant composition and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910681807.9A CN110408205B (en) | 2019-07-26 | 2019-07-26 | Heat-resistant and wear-resistant composition and preparation method and application thereof |
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| CN110408205A true CN110408205A (en) | 2019-11-05 |
| CN110408205B CN110408205B (en) | 2022-03-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171568A (en) * | 2020-03-07 | 2020-05-19 | 桂林理工大学 | Preparation method of fluorine-containing and sulfone-containing polyimide-based friction material |
| CN111303628A (en) * | 2020-03-16 | 2020-06-19 | 中国科学院兰州化学物理研究所 | Polyimide self-lubricating composite material and preparation method thereof |
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| CN103132172A (en) * | 2011-11-29 | 2013-06-05 | 杜邦兴达（无锡）单丝有限公司 | Abrasive silk with improved rigidity, industrial brush with the same and purpose of industrial brush |
| CN105419322A (en) * | 2015-12-08 | 2016-03-23 | 安徽天瑞塑业有限公司 | Nylon abrasive filament and manufacturing method thereof |
| CN107325483A (en) * | 2017-07-06 | 2017-11-07 | 长沙五犇新材料科技有限公司 | A kind of heat resistant and wear resistant composite, preparation method and application |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5502098A (en) * | 1993-06-28 | 1996-03-26 | Cosmo Research Institute | Polymer composition for electrical part material |
| CN103132172A (en) * | 2011-11-29 | 2013-06-05 | 杜邦兴达（无锡）单丝有限公司 | Abrasive silk with improved rigidity, industrial brush with the same and purpose of industrial brush |
| CN105419322A (en) * | 2015-12-08 | 2016-03-23 | 安徽天瑞塑业有限公司 | Nylon abrasive filament and manufacturing method thereof |
| CN107325483A (en) * | 2017-07-06 | 2017-11-07 | 长沙五犇新材料科技有限公司 | A kind of heat resistant and wear resistant composite, preparation method and application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171568A (en) * | 2020-03-07 | 2020-05-19 | 桂林理工大学 | Preparation method of fluorine-containing and sulfone-containing polyimide-based friction material |
| CN111303628A (en) * | 2020-03-16 | 2020-06-19 | 中国科学院兰州化学物理研究所 | Polyimide self-lubricating composite material and preparation method thereof |
| CN111303628B (en) * | 2020-03-16 | 2021-03-23 | 中国科学院兰州化学物理研究所 | Polyimide self-lubricating composite material and preparation method thereof |
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| CN110408205B (en) | 2022-03-25 |
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