CN106280116A - A kind of polrvinyl chloride friction material and preparation method thereof - Google Patents
A kind of polrvinyl chloride friction material and preparation method thereof Download PDFInfo
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- CN106280116A CN106280116A CN201610722641.7A CN201610722641A CN106280116A CN 106280116 A CN106280116 A CN 106280116A CN 201610722641 A CN201610722641 A CN 201610722641A CN 106280116 A CN106280116 A CN 106280116A
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
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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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- 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
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Abstract
The invention discloses a kind of polrvinyl chloride friction material, it is made up of the raw material of following weight parts: polrvinyl chloride 140 170, tetraethyl orthosilicate 68,1,3,5 trimethylbenzenes 0.01 0.02, the formalin 50 60 of tripolycyanamide 37 40,37 40%, triethanolamine 0.2 0.3, alkylphenol polyoxyethylene 0.3 0.5, dialkyl pentasulfide RC25402 3, crystal whisker of hexa potassium titanate 12, titanate coupling agent kt1050.3 1.Dialkyl pentasulfide, six potassium ferrite whiskers are coated between resin by the present invention, not only can improve the mechanical property of resin matrix, increase the service life, fractional load can also be undertaken in friction process, reduce the adhesion of surface of friction pair, stop the thermal change of resin matrix, improve friction and wear behavior, improve the combination property of finished-product material.
Description
Technical field
The present invention relates to friction materials technology field, particularly relate to a kind of polrvinyl chloride friction material and preparation method thereof.
Background technology
Tribological material, by working condition and the requirement of friction element, can be divided into antifriction material, high-abrasive material and friction material
Material.By the type of material, it is divided into metal friction material, inorganic non-metallic tribological material and polymer tribological material,
The feature of the perishable candle of metal material, hinders its application at the special occasions such as navigation or chemical industry;The fragility of ceramic material
More seriously hindering its application, the pore that especially ceramic material remains in sintering process is the biggest to performance impact;Polymerization
Thing and composite thereof have excellent physics, chemical property, light weight, specific strength are high, specific modulus is big, good corrosion resistance, from
Lubricity is good, and has multifunctionality, is prone to processing, has a wide range of applications field, can be as the substitution material of precious metal.
Western countries constantly develop high performance engineering plastic composite material for making bearing, axle sleeve, valve seat, valve block, pad etc.
Accessory and universal machine and sealing member thereof, to meet the requirements such as high temperature resistant, wear-resistant, corrosion resistant candle, length in service life, so,
Develop high performance polymer base anti-friction wear-resistant composite material to be particularly important.
Friction material goods, before assembling uses, need to carry out some post-treatment process, such as boring, misloading, assembling etc.
Machining, just can be assembled into brake disc assembly or clutch assembly.Additionally, friction material is in the course of the work, except to hold
Thought by higher temperature, still suffer from bigger pressure and shearing force.Therefore, friction material is keeping preferable frictional behaviour
Simultaneously, it is necessary to there is enough mechanical strengths, to ensure at post-treatment or will not damaged or fragmentation during using.To braking
Sheet, impact strength and bending property are its mechanical performance indexs more paid close attention to, preferable impact strength and bending property
Make it will not damage under post-treatment and working condition；
Polymer self-lubricating material includes two kinds of main Types, a kind of polymeric material being to have relatively low-friction coefficient itself,
Such as politef, nylon, polypropylene etc.;Another kind is with polymeric material as matrix, adds emollient component and modified enhancing
Component, and the polymer based self lubricated composite material being prepared from by certain technique.In recent years, it is used alone polymeric material to make
The most not many for lubriation material, to first kind material, people also tend to be modified strengthening to it, to improve further
Its combination property.Therefore, so-called polymer self-lubricating material, is exactly the self-lubricating composite of polymer base in fact；Polymer
Based self lubricated composite material obtains a wide range of applications in electromechanical industries, such as row such as household electrical appliances, electronics, industry light industry textile industry and machineries
Many bearings of industry, gear, lining, guide rail, pot wheel, cam and piston ring etc. are all to use polymer based self lubricated composite material system
Standby；
Mesoporous material duct surfaces externally and internally contains more light base, and research worker uses different modifying method by some functional bases
Group induces one mesopore orbit surface, mesoporous material to be carried out functional modification, prepares the assembly of mesoporous main body-organic component object
System, owing to there is cooperation use between Subjective and Objective, assembly system research is for new function material.Find from Recent study, will
Mesoporous material is used for strengthening polymeric matrix, makes molecular resin chain prepare the composite mesoporous material of polymer base in introducing mesopore orbit
Material.This inorganic material strengthens polymeric matrix and will assist in the dispersion of nano material and the biphase interface of organic-inorganic is compatible
Property.The research of polymer base mesoporous composite material is still in the starting stage, there are some common problems in preparation process: (1) as
What carries out the modification of effective surface to mesoporous material, improves two alternate interface compatibilities, and surface is modified and can not be caused Jie simultaneously
The blocking of Porous materials opening of the channel, affects the entrance of monomeric small molecule or macromolecular chain.(2) small molecule monomer or prepolymer how are made
More entrance mesoporous material ducts, and make mesoporous material be dispersed in monomer.Contributing to being formed preferably, " organic and inorganic is mutual
Wear network structure ".(3) for different resin matrixes, which kind of preparation method is used to make mesoporous material equal in polymeric matrix
Hook dispersion, formed preferably " organic and inorganic inierpeneirating network structure "；
The present invention, based on the orderly duct of mesoporous material, high specific surface area, the architectural feature such as larger aperture and pore volume, uses ultrasonic
Process makes monomer enter mesopore orbit, then prepares melamine resin base mesoporous composite material by polymerization, and this resin divides
Subchain or segment embed in mesopore orbit, form novel " organic and inorganic inierpeneirating network structure ", with melamine resin tree
Aliphatic radical mesoporous composite material is that matrix resin prepares the preferable friction material of mechanical property, hot property and frictional behaviour.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of polrvinyl chloride friction material and preparation thereof
Method.
The present invention is achieved by the following technical solutions:
A kind of polrvinyl chloride friction material, it is made up of the raw material of following weight parts:
Polrvinyl chloride 140-170, tetraethyl orthosilicate 6-8,1，3，5-trimethyl-benzene 0.01-0.02, tripolycyanamide 37-40,37-
The formalin 50-60 of 40%, triethanolamine 0.2-0.3, alkylphenol polyoxyethylene 0.3-0.5, dialkyl pentasulfide
RC25402-3, crystal whisker of hexa potassium titanate 1-2, titanate coupling agent kt1050.3-1.
The preparation method of a kind of described polrvinyl chloride friction material, comprises the following steps:
(1) by the 10-12% of above-mentioned polrvinyl chloride weight, mix with 1，3，5-trimethyl-benzene, join compound weight 70-80
Times, in the hydrochloric acid solution of 27-30%, sends in the water bath with thermostatic control of 36-40 DEG C, 200-300 rev/min is stirred 4-5 hour, drips
Above-mentioned tetraethyl orthosilicate, stirring reaction 24-26 hour, discharging, freeze-day with constant temperature 20-22 hour at 100-110 DEG C, then at 550-
At 580 DEG C, roasting 4-5 hour, obtains mesoporous material；
(2) abovementioned alkyl phenol polyethenoxy ether is joined in the deionized water of its weight 90-100 times, add mesoporous material, super
Sound 2-3 minute, obtains mesoporous material dispersion liquid；
(3) being joined by above-mentioned titanate coupling agent kt105 in the dehydrated alcohol of its weight 27-30 times, liter high-temperature is 60-65
DEG C, add crystal whisker of hexa potassium titanate, insulated and stirred 20-25 hour, obtain coupling agent alcohol liquid；
(4) by above-mentioned tripolycyanamide, the formalin of 37-40%, triethanolamine mixing, insulated and stirred 70-at 65-70 DEG C
78 minutes, add above-mentioned mesoporous material dispersion liquid, dialkyl pentasulfide RC2540, at the temperature disclosed above, 1500-1600 turns/
Dividing stirring 17-20 minute, the ammonium chloride solution of dropping 0.1-0.2g/ml, regulation pH is 4-5, rises high-temperature and is 80-83 DEG C, protects
Temperature stirring 90-100 minute, reduces temperature and is 47-50 DEG C, add above-mentioned coupling agent alcohol liquid, insulated and stirred 17-20 minute, sucking filtration,
By the precipitation acetone obtained, deionized water alternately washing 2-3 time, normal temperature drying, obtain resin modified mesoporous material；
(5) above-mentioned resin modified mesoporous material is mixed with remaining each raw material, send in extruder, melt extrude, the product of extrusion
Thing, through circulator bath cooling and pelletizing, to obtain final product.
The invention have the advantage that the present invention first with 1,3,5-trimethylbenzenes are expanding agent, with tetraethyl orthosilicate for silicon source,
Having synthesized mesoporous material under strong acidic condition, this mesoporous material has higher specific surface area, larger aperture and pore volume, then will
This mesoporous material and the resin alloy formed by tripolycyanamide, formaldehyde, melamine formaldehyde resin mechanical strength is high, thermally-stabilised
Property good, strand and mesoporous material surfaces externally and internally generation keyed jointing effect, moieties chain or segment embed in mesoporous material duct,
Forming strand inside and outside mesopore orbit to tangle mutually, form organic and inorganic inierpeneirating network structure, this structure improves biphase boundary
The face compatibility, and limit molecular chain movement, improve the heat stability of composite, in friction process, due to polymer
Strand and mesoporous inside and outside entanglement, make the more difficult stripping from matrix resin of mesoporous material, reduce wear extent, improve composite wood
The high temperature friction performance of material；When being impacted, it is possible to effectively transmit external carbuncle, cause mesoporous material cladding matrix generation office
Portion's deformation at yield, increases the raising of dissipation impact energy, beneficially impact strength, reduces wear extent simultaneously, improve composite wood
The high temperature friction performance of material；
Dialkyl pentasulfide, six potassium ferrite whiskers are also coated between resin by the present invention simultaneously, not only can improve resin base
The mechanical property of body, increases the service life, it is also possible to undertake fractional load in friction process, reduces the viscous of surface of friction pair
, stop the thermal change of resin matrix, improve friction and wear behavior, improve the combination property of finished-product material.
Detailed description of the invention
A kind of polrvinyl chloride friction material, it is made up of the raw material of following weight parts:
Polrvinyl chloride 140, tetraethyl orthosilicate 6,1,3,5 trimethylbenzene 0.01, the formalin 50, three of tripolycyanamide 37,37%
Ethanolamine 0.2, alkylphenol polyoxyethylene 0.3, dialkyl pentasulfide RC25402, crystal whisker of hexa potassium titanate 1, titanate esters coupling
Agent kt1050.3.
The preparation method of a kind of described polrvinyl chloride friction material, comprises the following steps:
(1) by the 10% of above-mentioned polrvinyl chloride weight, with 1,3,5 trimethylbenzenes mixing, join compound weight 70 times, 27%
Hydrochloric acid solution in, send in the water bath with thermostatic control of 36 DEG C, 200 revs/min are stirred 4 hours, drip above-mentioned tetraethyl orthosilicate, and stirring is anti-
Answer 24 hours, discharging, freeze-day with constant temperature 20 hours at 100 DEG C, then roasting 4 hours at 550 DEG C, obtain mesoporous material；
(2) abovementioned alkyl phenol polyethenoxy ether is joined in the deionized water of its weight 90 times, addition mesoporous material, ultrasonic 2
Minute, obtain mesoporous material dispersion liquid；
(3) being joined by above-mentioned titanate coupling agent kt105 in the dehydrated alcohol of its weight 27 times, rising high-temperature is 60 DEG C, adds
Enter crystal whisker of hexa potassium titanate, insulated and stirred 20 hours, obtain coupling agent alcohol liquid；
(4) by above-mentioned tripolycyanamide, the formalin of 37%, triethanolamine mixing, at 65 DEG C, insulated and stirred 70 minutes, add
Entering above-mentioned mesoporous material dispersion liquid, dialkyl pentasulfide RC2540, at the temperature disclosed above, 1500 revs/min are stirred 17 minutes, drip
Adding the ammonium chloride solution of 0.1g/ml, regulation pH is 4, and rising high-temperature is 80 DEG C, insulated and stirred 90 minutes, and reducing temperature is 47 DEG C,
Add above-mentioned coupling agent alcohol liquid, insulated and stirred 17 minutes, sucking filtration, the precipitation acetone obtained, deionized water are replaced washing 2
Secondary, normal temperature drying, obtain resin modified mesoporous material；
(5) above-mentioned resin modified mesoporous material is mixed with remaining each raw material, send in extruder, melt extrude, the product of extrusion
Thing, through circulator bath cooling and pelletizing, to obtain final product.
Performance test:
Hot strength: 23.4MPa；
Low temperature brittleness impact temperature (DEG C) :-30 DEG C are passed through；
Fire-retardant rank: V-0；
After 100 DEG C × 240h hot air aging: hot strength rate of change (%)-6.6；
Extension at break rate of change (%)-7.7.
Claims (2)
1. a polrvinyl chloride friction material, it is characterised in that it is made up of the raw material of following weight parts:
Polrvinyl chloride 140-170, tetraethyl orthosilicate 6-8,1，3，5-trimethyl-benzene 0.01-0.02, tripolycyanamide 37-40,37-
The formalin 50-60 of 40%, triethanolamine 0.2-0.3, alkylphenol polyoxyethylene 0.3-0.5, dialkyl pentasulfide
RC25402-3, crystal whisker of hexa potassium titanate 1-2, titanate coupling agent kt1050.3-1.
2. the preparation method of a polrvinyl chloride friction material as claimed in claim 1, it is characterised in that include following step
Rapid:
(1) by the 10-12% of above-mentioned polrvinyl chloride weight, mix with 1，3，5-trimethyl-benzene, join compound weight 70-80
Times, in the hydrochloric acid solution of 27-30%, sends in the water bath with thermostatic control of 36-40 DEG C, 200-300 rev/min is stirred 4-5 hour, drips
Above-mentioned tetraethyl orthosilicate, stirring reaction 24-26 hour, discharging, freeze-day with constant temperature 20-22 hour at 100-110 DEG C, then at 550-
At 580 DEG C, roasting 4-5 hour, obtains mesoporous material；
(2) abovementioned alkyl phenol polyethenoxy ether is joined in the deionized water of its weight 90-100 times, add mesoporous material, super
Sound 2-3 minute, obtains mesoporous material dispersion liquid；
(3) being joined by above-mentioned titanate coupling agent kt105 in the dehydrated alcohol of its weight 27-30 times, liter high-temperature is 60-65
DEG C, add crystal whisker of hexa potassium titanate, insulated and stirred 20-25 hour, obtain coupling agent alcohol liquid；
(4) by above-mentioned tripolycyanamide, the formalin of 37-40%, triethanolamine mixing, insulated and stirred 70-at 65-70 DEG C
78 minutes, add above-mentioned mesoporous material dispersion liquid, dialkyl pentasulfide RC2540, at the temperature disclosed above, 1500-1600 turns/
Dividing stirring 17-20 minute, the ammonium chloride solution of dropping 0.1-0.2g/ml, regulation pH is 4-5, rises high-temperature and is 80-83 DEG C, protects
Temperature stirring 90-100 minute, reduces temperature and is 47-50 DEG C, add above-mentioned coupling agent alcohol liquid, insulated and stirred 17-20 minute, sucking filtration,
By the precipitation acetone obtained, deionized water alternately washing 2-3 time, normal temperature drying, obtain resin modified mesoporous material；
(5) above-mentioned resin modified mesoporous material is mixed with remaining each raw material, send in extruder, melt extrude, the product of extrusion
Thing, through circulator bath cooling and pelletizing, to obtain final product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610722641.7A CN106280116A (en) | 2016-08-25 | 2016-08-25 | A kind of polrvinyl chloride friction material and preparation method thereof |
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| CN201610722641.7A CN106280116A (en) | 2016-08-25 | 2016-08-25 | A kind of polrvinyl chloride friction material and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104861415A (en) * | 2015-05-07 | 2015-08-26 | 芜湖品度电子科技有限公司 | High temperature resistant friction resistant pulley material composition for two-dimension code knitting machine and pulley production method |
-
2016
- 2016-08-25 CN CN201610722641.7A patent/CN106280116A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104861415A (en) * | 2015-05-07 | 2015-08-26 | 芜湖品度电子科技有限公司 | High temperature resistant friction resistant pulley material composition for two-dimension code knitting machine and pulley production method |
Non-Patent Citations (3)
| Title |
|---|
| 余传柏: ""介孔材料原位增强酚醛树脂基摩擦材料的制备及性能研究"", 《中国博士学位论文全文数据库 工程科技I辑》 * |
| 唐磊等主编: "《轻量化材料技术》", 31 January 2014, 国防工业出版社 * |
| 马国伟等: ""二烃基五硫化物三聚氰胺甲醛树脂微胶囊的制备及其摩擦性能"", 《复合材料学报》 * |
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Application publication date: 20170104 |