CN108017906A - A kind of modified Nano pipe/oil filled mc nylon composite material - Google Patents
A kind of modified Nano pipe/oil filled mc nylon composite material Download PDFInfo
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- CN108017906A CN108017906A CN201810030788.9A CN201810030788A CN108017906A CN 108017906 A CN108017906 A CN 108017906A CN 201810030788 A CN201810030788 A CN 201810030788A CN 108017906 A CN108017906 A CN 108017906A
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- 239000004677 Nylon Substances 0.000 title claims abstract description 41
- 229920001778 nylon Polymers 0.000 title claims abstract description 41
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 239000002071 nanotube Substances 0.000 claims abstract description 33
- 239000004519 grease Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000004913 activation Effects 0.000 claims abstract description 6
- 238000013019 agitation Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000003921 oil Substances 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 11
- 239000003426 co-catalyst Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 6
- 239000002199 base oil Substances 0.000 claims description 6
- 239000002041 carbon nanotube Substances 0.000 claims description 6
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 6
- -1 4- diisocyanate Chemical compound 0.000 claims description 5
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000010257 thawing Methods 0.000 claims description 5
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 2
- 150000003951 lactams Chemical class 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 claims description 2
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 claims description 2
- 229910052961 molybdenite Inorganic materials 0.000 claims description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000000376 reactant Substances 0.000 claims description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000000967 suction filtration Methods 0.000 claims description 2
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229910052621 halloysite Inorganic materials 0.000 claims 1
- 229910000077 silane Inorganic materials 0.000 claims 1
- 239000000178 monomer Substances 0.000 abstract description 19
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000011056 performance test Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- 239000004408 titanium dioxide Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- YQGOWXYZDLJBFL-UHFFFAOYSA-N dimethoxysilane Chemical compound CO[SiH2]OC YQGOWXYZDLJBFL-UHFFFAOYSA-N 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
Landscapes
- 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 is a kind of modified Nano pipe/oil filled mc nylon composite material.The material comprises the following steps, and the preparation method, comprises the steps of：（1）Nanotube is added in acid solution, activation nanotube is obtained after ultrasonic agitation；（2）Activation nanotube obtained by upper step is added in ethanol, adds silane coupling agent, reaction 1.0~8.0 obtains modified Nano pipe when small；（3）Modified Nano pipe is added in lubricant grease, obtains modifying agent；Wherein per 1g modified Nano pipes, 0.1~8.0g lubricant greases are added；（4）Modifying agent will be added after caprolactam heating and melting, add catalyst, obtain the cast composite nylon material.The tensile strength and elongation at break for the monomer cast nylon that the present invention obtains are significantly increased.
Description
Technical field
The invention belongs to technical field of polymer composite materials, using modified Nano pipe and the common modified mould of lubricant grease
Nylon composite materials.
Technical background
Monomer cast nylon is also known as monomer moulding casting nylon (MC nylon), using basic catalyst and co-catalyst, by hot melt oneself
Lactam monomers are cast in the mould having been warmed up, and anion occurs rapidly in a mold for the caprolactam monomer heated
Home position polymerization reaction, etc. obtaining monomer cast nylon product after cooling and demolding.Monomer cast nylon product is simple with technique, and molecular weight is greatly simultaneously
And be evenly distributed, the advantages that temperature in use is extensive, mechanical property is good.But there is also low temperature is tough for current common monomer cast nylon
The shortcomings of property is poor, and rub resistance, abrasiveness are poor, and self lubricity is not good enough.In actual use, it is particularly important that frictional behaviour, in order to carry
The crocking resistance of high monomer cast nylon material is generally using addition lubricant grease, the method for making oil filled mc nylon, but by
Material mechanical performance can be caused to decline in the addition of grease, this is restricted the wider model application of monomer cast nylon material, and
High-end product relies primarily on import.In order to improve the mechanical property of monomer cast nylon, also have in monomer cast nylon add nano-particle/
The method that pipe is modified, though the addition of nano-particle/pipe makes mechanical strength have a certain upgrade, but frictional behaviour again cannot
Access high lifting.
The content of the invention
The present invention be directed to current techniques deficiency, there is provided a kind of modified Nano pipe/oil filled mc nylon composite material and
Its preparation method.Nanotube is incorporated in monomer cast nylon by this method, and mutual knot is formed using lubricant grease and modified Nano pipe
Good pipe network structure is closed, the two synergistic effect is dispersed in monomer cast nylon, so that obtained material obtains mechanical property
Improved with the comprehensive performance of frictional behaviour.
The technical scheme is that：
A kind of modified Nano pipe/oil filled mc nylon composite material, it is characterized in that the material comprises the following steps, it is described
Preparation method, comprises the steps of：
(1) nanotube is added in acid solution, when ultrasonic agitation 0.5~1.0 is small, then neutrality is washed to distillation, filtered
After obtain activation nanotube；Wherein, 100~150ml acid solutions are needed per 1g nanotubes, acid solution is the hydrochloric acid solution of 1~2mol/L；
(2) activation nanotube obtained by upper step is added in ethanol, silane coupling agent is added, at 40 DEG C~110 DEG C
When reaction 1.0~8.0 is small, modified Nano pipe is obtained after washing, centrifugation, drying；Wherein per 1g nanotubes, 100~200ml second is added
Alcohol, adds 0.1~1.0g silane coupling agents；
(3) modified Nano pipe is added in lubricant grease, ultrasonic disperse 3~7 is small in 80 DEG C~130 DEG C of environment
When, obtain modifying agent；Wherein per 1g modified Nano pipes, 0.1~8.0g lubricant greases are added；
(4) caprolactam is heated to 90 DEG C~110 DEG C thawings, then is warming up to 120 DEG C~140 DEG C, step obtains in addition
Modifying agent, at reduced pressure conditions react 5~15 minutes；Then 125 DEG C~135 DEG C are cooled to, adds catalyst, then depressurizing
Under the conditions of react 5~15 minutes；Wherein, 1.0~5.0g modifying agent is added per 100g caprolactams, is added per 100g caprolactams
0.1~0.9g catalyst；
(5) reactant that upper step obtains is warming up to 135 DEG C~145 DEG C, adds co-catalyst, mould is poured into after mixing
In, kept for 20~50 minutes at 150 DEG C~180 DEG C, demolding after cooling obtains the cast composite nylon material；Wherein, often
0.1~1.0g co-catalysts are added in 100g caprolactams；
The nanotube is specially single-layer carbon nano-tube, multilayer carbon nanotube, titania nanotube, galapectite nanometer
One or more in pipe and nano-tube.
The lubricating oil or lubricating grease be specially methyl-silicone oil, base oil, white special greases, bearing grease,
MoS2One or more in lithium base grease.
The silane coupling agent is specifically, γ-aminopropyl triethoxysilane (KH-550), γ-(2,3- epoxies third
Oxygen) propyl trimethoxy silicane (KH-560), γ-(methacryloxypropyl) propyl trimethoxy silicane (KH-570), vinyl
Triethoxysilane (KH-151), γ-mercaptopropyl trimethoxysilane (KH-580), N- (β-aminoethyl)-γ-aminopropyl first
One or more in base dimethoxysilane (KH-602).
The catalyst is sodium hydroxide, potassium hydroxide, sodium methoxide, the one of which in sodium ethoxide or several
The co-catalyst is Toluene-2,4-diisocyanate, 4- diisocyanate, hexamethylene diisocyanate, two isocyanide of diphenyl-methane
One or more in acid esters, lysine diisocyanate.
The pressure under reduced pressure in the step (4) is preferably 0.8~0.9MPa.
Beneficial effects of the present invention：
The present invention forms special pipe network structure using modified Nano pipe and lubricant grease, the two uniformly divides in monomer cast nylon
Cloth, compared to common oil filled mc nylon, not only its tensile strength and elongation at break are significantly increased, the rub resistance of material,
Polishing machine is more significantly improved.Compared to common oil filled mc nylon not only frictional decrease 45%, wear extent also drops
Low 52%, elongation at break improves 28%, and bending strength improves 35%, and bending modulus improves 24%, compressive strength
22% is improved, other performances are improved or maintain an equal level.It is equal that most of performance is surveyed compared to common monomer cast nylon (comparative example 1)
It is improved.
Embodiment
For the ease of understanding the present invention, more comprehensive description is done to the present invention with reference to embodiment, but the present invention
Protection domain is not limited in following specific embodiment.
Nanotube of the present invention is specially single-layer carbon nano-tube, multilayer carbon nanotube, titania nanotube, Ai Luo
Stone nanotube or nano-tube, are commercially available well known materials, a diameter of 2~20nm.
Except there is a specified otherwise, used various reagents, raw material are that can be purchased from the market or can be with the present invention
Pass through product made from known method.
Embodiment 1
(1) in the hydrochloric acid solution for weighing the 1mol/L that 1g titania nanotubes are added to 150ml, ultrasonic agitation 1.0 is small
When, then it is washed to neutrality, the nanotube after being cleaned and activated after suction filtration with distillation.
(2) 1g titania nanotubes obtained by upper step are added in 100ml ethanol, add 0.1g γ-aminopropyl three
Ethoxysilane (KH-550) silane coupling agent reacted at 75 DEG C 6 it is small when, washing, centrifugation, it is dry after modifying titanium dioxide
Nanotube.
(3) 1g modifying titanium dioxide nanotubes are added in 7g base oils, ultrasonic disperse 5 is small in 130 DEG C of environment
When, ultrasound terminates to obtain the modifying agent that modifying titanium dioxide nanotube and base oil are formed.
(4) 100g caprolactams are heated to 110 DEG C of thawings, then are warming up to 140 DEG C of addition 1g modifying agent, in reduced pressure
Lower reaction 15 minutes (vacuum 0.8MPa) is with water removal.125 DEG C of addition 0.3g sodium hydroxides are cooled to, are reacted at reduced pressure conditions
15 minutes (vacuum 0.8MPa) is with water removal.
(5) 145 DEG C of addition 0.2g co-catalyst Toluene-2,4-diisocyanate .4- diisocyanate are warming up to, pour into mould after mixing
In, kept for 40 minutes at 160 DEG C, demolding after cooling obtains the cast composite nylon material.
Comparative example 1
(1) 100g caprolactams are heated to 110 DEG C of thawings.
(2) Depressor response 5~15 minutes (vacuum 0.8MPa) to remove water, is warming up to 125 DEG C of addition 0.3g at 110 DEG C
Sodium hydroxide, then water removal (vacuum 0.8MPa) in 10 minutes is reacted at reduced pressure conditions.
(3) 145 DEG C of addition 0.2g co-catalyst Toluene-2,4-diisocyanate .4- diisocyanate are warming up to, are poured into after mixing
In the mould of preheating, kept for 40 minutes at 160 DEG C, monomer cast nylon product is obtained after the demoulding to be cooled.
Comparative example 2
(1) 100g caprolactams are heated to 110 DEG C of thawings.
(2) Depressor response 5~15 minutes (vacuum 0.8MPa) to remove water, is warming up to 125 DEG C of addition 0.3g at 110 DEG C
Sodium hydroxide, Depressor response (vacuum 0.8MPa) remove water for 10 minutes.It is warming up to 140 DEG C of addition 1g base oils.
(3) 145 DEG C of addition 0.2g co-catalyst Toluene-2,4-diisocyanate .4- diisocyanate are warming up to, are poured into after mixing
In the mould of preheating, kept for 40 minutes at 160 DEG C, monomer cast nylon product is obtained after the demoulding to be cooled.
The performance test results are as shown in appendix 1
Subordinate list 1
Common oil filled mc nylon (comparative example 2) is (right compared to common monomer cast nylon it can be seen from the data of subordinate list 1
Ratio 1) certain friction coefficient is reduced, but wear extent does not reduce, and mechanical property has different degrees of decline.This
Modifying titanium dioxide nanotube/oil filled mc nylon the material (embodiment 1) prepared is invented compared with comparative example 2, is not only rubbed
Coefficient have dropped 45%, and wear extent also reduces 52%, and elongation at break improves 28%, and bending strength improves 35%, curved
Bent modulus improves 24%, and compressive strength improves 22%, other performances are improved or maintain an equal level.Compared to common monomer cast nylon
(comparative example 1) surveys most of performance and is improved.
Embodiment 2
Other steps and embodiment 1, difference are by 0.1g γ-aminopropyl triethoxysilane in step (2)
(KH-550) silane coupling agent changes 0.2g vinyltriethoxysilane (KH-151) silane coupling agent into.Its performance test results
It is close with embodiment 1.
Embodiment 3
Other steps and embodiment 1, difference are to change the 7g base oils in step (3) into 4g methyl-silicone oils, are added
The temperature of modifying agent makes 135 DEG C into by 140 DEG C.Its performance test results is close with embodiment 1.
Embodiment 4
Other steps and embodiment 1, difference are that the 0.3g sodium hydroxides in step (4) are changed to 0.25g sodium methoxides.
Its performance test results is close with embodiment 1.
Embodiment 5
Other steps and embodiment 1, difference are that the 1g titania nanotubes in step (1) are changed to 1g galapectites
Nanotube, 0.15g is changed to by the silane coupling agent dosage in step (2) by 0.1g.Its performance test is close with embodiment 1.
Unaccomplished matter of the present invention is known technology.
Claims (7)
1. a kind of modified Nano pipe/oil filled mc nylon composite material, it is characterized in that the material comprises the following steps, the system
Preparation Method, comprises the steps of：
（1）Nanotube is added in acid solution, when ultrasonic agitation 0.5~1.0 is small, then with distillation is washed to neutrality, after suction filtration
To activation nanotube；Wherein, 100~150ml acid solutions are needed per 1g nanotubes, acid solution is the hydrochloric acid solution of 1~2mol/L；
（2）Activation nanotube obtained by upper step is added in ethanol, silane coupling agent is added, is reacted at 40 DEG C~110 DEG C
1.0~8.0 it is small when, washing, centrifugation, it is dry after modified Nano pipe；Wherein per 1g nanotubes, 100~200ml ethanol is added,
Add 0.1~1.0g silane coupling agents；
（3）Modified Nano pipe is added in lubricant grease, when ultrasonic disperse 3~7 is small in 80 DEG C~130 DEG C of environment, is obtained
To modifying agent；Wherein per 1g modified Nano pipes, 0.1~8.0g lubricant greases are added；
（4）Caprolactam is heated to 90 DEG C~110 DEG C thawings, then is warming up to 120 DEG C~140 DEG C, what step obtained in addition changes
Property agent, at reduced pressure conditions react 5~15 minutes；Then 125 DEG C~135 DEG C are cooled to, adds catalyst, then in reduced pressure
Lower reaction 5~15 minutes；Wherein, 1.0~5.0g modifying agent is added per 100g caprolactams, 0.1 is added per 100g caprolactams
~0.9g catalyst；
（5）The reactant that upper step obtains is warming up to 135 DEG C~145 DEG C, co-catalyst is added, is poured into after mixing in mould,
Kept for 20~50 minutes at 150 DEG C~180 DEG C, demolding after cooling obtains the cast composite nylon material；Wherein, per 100g oneself
0.1~1.0g co-catalysts are added in lactams.
2. modified Nano pipe/oil filled mc nylon composite material as claimed in claim 1, it is characterized in that the nanometer pipe
Body be single-layer carbon nano-tube, multilayer carbon nanotube, titania nanotube, halloysite nanotubes and nano-tube in one kind or
It is several.
3. modified Nano pipe/oil filled mc nylon composite material as claimed in claim 1, it is characterized in that the lubricating oil or
Lubricating grease is specially methyl-silicone oil, base oil, white special greases, bearing grease, MoS2One kind in lithium base grease
It is or several.
4. modified Nano pipe/oil filled mc nylon composite material as claimed in claim 1, it is characterized in that described is silane coupled
Agent is specifically, γ-aminopropyl triethoxysilane（KH-550）、γ—（2,3- the third oxygen of epoxy）Propyl trimethoxy silicane
（KH-560）、γ—（Methacryloxypropyl）Propyl trimethoxy silicane（KH-570）, vinyltriethoxysilane（KH-
151）, γ-mercaptopropyl trimethoxysilane（KH-580）、N-（β-aminoethyl）- γ-aminopropyltriethoxy dimethoxysilane
（KH-602）In one or more.
5. modified Nano pipe/oil filled mc nylon composite material as claimed in claim 1, it is characterized in that the catalyst is
One of which or several in sodium hydroxide, potassium hydroxide, sodium methoxide, sodium ethoxide.
6. modified Nano pipe/oil filled mc nylon composite material as claimed in claim 1, it is characterized in that the co-catalyst
For Toluene-2,4-diisocyanate, 4- diisocyanate, hexamethylene diisocyanate, '-diphenylmethane diisocyanate, lysine diisocyanate
In one or more.
7. modified Nano pipe/oil filled mc nylon composite material as claimed in claim 1, it is characterized in that the step（4）
In reduced pressure under pressure be 0.8~0.9MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030788.9A CN108017906B (en) | 2018-01-12 | 2018-01-12 | Modified nanotube/oil-containing cast nylon composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030788.9A CN108017906B (en) | 2018-01-12 | 2018-01-12 | Modified nanotube/oil-containing cast nylon composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108017906A true CN108017906A (en) | 2018-05-11 |
| CN108017906B CN108017906B (en) | 2020-05-12 |
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| CN201810030788.9A Expired - Fee Related CN108017906B (en) | 2018-01-12 | 2018-01-12 | Modified nanotube/oil-containing cast nylon composite material |
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| CN115322566A (en) * | 2022-09-16 | 2022-11-11 | 无锡腾达精密模塑有限公司 | PA 66-based composite material for motor bearing retainer and preparation method thereof |
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