CN115322560A - Wear-resistant nylon material and preparation method and application thereof - Google Patents
Wear-resistant nylon material and preparation method and application thereof Download PDFInfo
- Publication number
- CN115322560A CN115322560A CN202211023739.5A CN202211023739A CN115322560A CN 115322560 A CN115322560 A CN 115322560A CN 202211023739 A CN202211023739 A CN 202211023739A CN 115322560 A CN115322560 A CN 115322560A
- Authority
- CN
- China
- Prior art keywords
- wear
- resistant
- nylon material
- nylon
- calcium carbonate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004677 Nylon Substances 0.000 title claims abstract description 72
- 229920001778 nylon Polymers 0.000 title claims abstract description 72
- 239000000463 material Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title abstract description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 50
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 24
- 239000004094 surface-active agent Substances 0.000 claims abstract description 24
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 23
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 239000011324 bead Substances 0.000 claims abstract description 22
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 20
- 238000011049 filling Methods 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 17
- 239000012188 paraffin wax Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims description 17
- 230000000996 additive effect Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 238000005299 abrasion Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 125000000962 organic group Chemical group 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 abstract description 15
- 239000002131 composite material Substances 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000004005 microsphere Substances 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 11
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 125000001165 hydrophobic group Chemical group 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MYMSJFSOOQERIO-UHFFFAOYSA-N 1-bromodecane Chemical compound CCCCCCCCCCBr MYMSJFSOOQERIO-UHFFFAOYSA-N 0.000 description 1
- VGCXGMAHQTYDJK-UHFFFAOYSA-N Chloroacetyl chloride Chemical compound ClCC(Cl)=O VGCXGMAHQTYDJK-UHFFFAOYSA-N 0.000 description 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- DCOPUUMXTXDBNB-UHFFFAOYSA-N diclofenac Chemical compound OC(=O)CC1=CC=CC=C1NC1=C(Cl)C=CC=C1Cl DCOPUUMXTXDBNB-UHFFFAOYSA-N 0.000 description 1
- 229960001259 diclofenac Drugs 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010946 fine silver Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
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
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention particularly relates to a wear-resistant nylon material and a preparation method and application thereof, belonging to the technical field of high polymer materials, wherein the nylon material comprises the following components: nylon resin, wear-resistant auxiliary agent and filling beads; wherein, the raw materials of the wear-resistant auxiliary agent comprise: polytetrafluoroethylene, calcium carbonate, gemini surfactant and paraffin wax; the Gemini surfactant modified calcium carbonate is used for filling the polytetrafluoroethylene with excellent wear resistance and self-lubricating property, and filling beads are added, and the particles of the filling beads are distributed in a nylon matrix, so that the hard particles in the composite material have bearing capacity. When the softer matrix is worn under the action of an external load, the filling bead particles are protruded on the surface of the sample to bear the load, so that the wear of the softer matrix is reduced, and the wear resistance of the softer matrix is improved.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a wear-resistant nylon material, and a preparation method and application thereof.
Background
Nylon (PA, nylon) is a common engineering plastic, has good mechanical properties, durability, corrosion resistance and heat resistance, is commonly used for manufacturing engineering parts such as gears, cams, bearings and the like, and is an indispensable basic material in industries such as electronic information, transportation, aerospace, mechanical manufacturing, national defense construction and the like. Many parts made of nylon are subjected to high-speed, high-strength friction during use to cause wear, and therefore, it is required to effectively reduce the friction factor of nylon and improve wear performance, thereby prolonging the service life of the parts.
Disclosure of Invention
The application aims to provide a wear-resistant nylon material, and a preparation method and application thereof, so as to solve the problem that the existing nylon material is not strong in wear resistance.
The embodiment of the invention provides a wear-resistant nylon material, which comprises the following components:
nylon resin, wear-resistant auxiliary agent and filling beads;
wherein, the raw materials of the wear-resistant auxiliary agent comprise: the adhesive comprises polytetrafluoroethylene, calcium carbonate, a Gemini surfactant and paraffin, wherein the structural formula of the Gemini surfactant is as follows:
optionally, the filler beads comprise hollow microspheres, and the particle size of the hollow microspheres is less than or equal to 5 μm.
Optionally, the hollow microsphere comprises SiO 2 And Al 2 O 3 。
Optionally, the cenosphere comprises a cenosphere body and an organic group constructed on the cenosphere body.
Optionally, the wear-resistant additive comprises the following raw materials in parts by weight: 70-75 parts of polytetrafluoroethylene, 25-30 parts of calcium carbonate, 0.10-0.25 part of Gemini surfactant and 0.25-0.5 part of paraffin.
Optionally, the raw materials of the wear-resistant assistant also comprise 0.006-0.024 parts of antioxidant by mass.
Optionally, the calcium carbonate is in the form of powder, and the particle size of the powder is 2500-3500 meshes.
Optionally, the nylon material comprises the following components in percentage by mass:
75-90% of nylon resin, 10-20% of wear-resistant additive and 2-10% of wear-resistant additive.
Based on the same inventive concept, the embodiment of the invention also provides a preparation method of the wear-resistant nylon material, wherein the nylon material is the wear-resistant nylon material; the method comprises the following steps:
premixing nylon resin, wear-resistant additive and wear-resistant additive to obtain a premix;
and melting and granulating the premix to obtain the nylon material.
Based on the same inventive concept, the embodiment of the invention also provides a component, wherein at least part of the material of the component comprises the wear-resistant nylon material.
One or more technical solutions in the embodiments of the present invention at least have the following technical effects or advantages:
according to the wear-resistant nylon material provided by the embodiment of the invention, the Gemini surfactant modified calcium carbonate is used for filling excellent wear resistance and self-lubricity of polytetrafluoroethylene, and the filling beads are added, and the particles of the filling beads are distributed in the nylon matrix, so that the hard particles in the composite material have bearing capacity. When the softer matrix is worn under the action of an external load, the filling bead particles are protruded on the surface of the sample to bear the load, so that the wear of the softer matrix is reduced, and the wear resistance of the softer matrix is improved.
The above description is only an overview of the technical solutions of the present invention, and the present invention can be implemented in accordance with the content of the description so as to make the technical means of the present invention more clearly understood, and the above and other objects, features, and advantages of the present invention will be more clearly understood.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a flow chart of a method provided by an embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
according to an exemplary embodiment of the present invention, there is provided a nylon material comprising:
nylon resin, wear-resistant auxiliary agent and filling beads;
wherein, the raw materials of the wear-resistant auxiliary agent comprise: the adhesive comprises polytetrafluoroethylene, calcium carbonate, a Gemini surfactant and paraffin, wherein the structural formula of the Gemini surfactant is as follows:
the preparation method of the Gemini surfactant comprises the following steps:
1) The synthesis of intermediate product p-phenyl diphenol bischloroacetate comprises the following steps: mixing hydroquinone, chloroacetyl chloride and triethylamine according to a molar ratio of 1; cooling and filtering after the reaction is finished, washing a filter cake with acetone for three times, pouring the filtrate into ice water under stirring, standing, layering, filtering, washing the filter cake with a mixed solution of water and acetone, washing with water for two times, drying the obtained solid, and recrystallizing with acetone-petroleum ether to obtain a brown solid of the diclofenac p-hydroquinone;
2) The synthesis of an intermediate product N, N-diethyldecaamine comprises the following steps: mixing 1-bromodecane and diethylamine according to a molar ratio of 1; extracting the mixed solution with ethyl acetate for three times, combining organic phases, and drying the organic phases with anhydrous magnesium sulfate overnight; filtering, removing ethyl acetate in the filtrate by using a rotary evaporator to obtain a light yellow oily liquid, and finally carrying out reduced pressure distillation by using an oil pump to obtain high-purity N, N-diethyldecaamine;
3) And (3) synthesizing a final product gemini surfactant: mixing p-phenylphenol bischloroacetate and N, N-diethyldecaamine according to a molar ratio of 1.
The specific synthesis steps are as follows:
regarding the Gemini surfactant modified calcium carbonate filled polytetrafluoroethylene: firstly, performing surface partial modification on calcium carbonate by utilizing a gemini surfactant to provide conditions for paraffin coating, and then coating the calcium carbonate by utilizing the paraffin to complete the modification; the obtained modified calcium carbonate is used for filling polytetrafluoroethylene to complete the preparation of the composite material; because the paraffin is a mixture consisting of a plurality of normal alkanes and repulses the polarity of the calcium carbonate, the effect of completely coating the calcium carbonate is difficult to achieve by only depending on mechanical acting force; compared with the traditional surfactant, the Gemini surfactant has the advantages that two hydrophilic groups and two hydrophobic groups are contained, and compared with the traditional surfactant, the two hydrophilic head groups in the molecule are tightly connected together through the connecting group, so that the distance between the hydrophilic head groups and the hydrophobic tail chain is shortened, the adsorption of the hydrophilic head groups on a solid-liquid interface is promoted, the interaction between alkyl chains is enhanced, and the hydrophobic effect of the alkyl chain is improved; before the calcium carbonate is modified, a large number of hydroxyl functional groups exist on the surface of the calcium carbonate, the surface is electronegative and is easily combined with a hydrophilic head group of a positive Gemini surfactant, a tail chain of a hydrophobic group faces outwards on the surface of the calcium carbonate, and then the tail chain of the hydrophobic group facing outwards on the surface of the calcium carbonate is easily and closely connected with paraffin, namely a compact nonpolar layer is coated on the surface of the calcium carbonate, the effect that the calcium carbonate is completely coated by the paraffin is basically achieved, the surface of the modified calcium carbonate is nonpolar, the modified calcium carbonate has good processing fluidity and good compatibility with polytetrafluoroethylene, and the obtained composite material has excellent mechanical properties and stability.
By adopting the design, the Gemini surfactant modified calcium carbonate is utilized to fill the excellent wear resistance and self-lubricating property of the polytetrafluoroethylene, and the filling beads are added, and the particles of the filling beads are distributed in the nylon matrix, so that the hard particles in the composite material have bearing capacity. When the softer matrix is worn under the action of an external load, the filling bead particles are protruded on the surface of the sample to bear the load, so that the wear of the softer matrix is reduced, and the wear resistance of the softer matrix is improved.
Meanwhile, the stress concentration of the spherical particles is small, and a large amount of fine silver grains can be caused without causing destructive cracking when fine filling bead particles are filled into the material, and meanwhile, the spherical surface is more favorable for uniformly transmitting the received external force to the surrounding matrix, so that the mechanical property of the composite material is improved. The nylon material with excellent shock resistance, wear resistance, self-lubrication and heat resistance is prepared, and the dimensional stability and rigidity of the nylon material are also improved.
In some embodiments, the packed beads comprise cenospheres. Specifically, the main component of the cenosphere comprises SiO 2 And Al 2 O 3 (ii) a Low porosity and less resin absorbed by the beads. Furthermore, the hollow microsphere comprises a microsphere body and an organic group constructed on the microsphere body, specifically, the hollow microsphere is treated by a coupling agent KH-550, and the particle size of the hollow microsphere is less than or equal to 5 μm.
In some embodiments, the raw materials of the abrasion-resistant assistant comprise, in parts by mass: 70-75 parts of polytetrafluoroethylene, 25-30 parts of calcium carbonate, 0.10-0.25 part of Gemini surfactant and 0.25-0.5 part of paraffin. Furthermore, the raw materials of the wear-resistant assistant also comprise 0.006-0.024 part of antioxidant by mass.
In this embodiment, the calcium carbonate is in the form of powder, and the particle size of the powder is 2500-3500 mesh, more preferably 3000 mesh.
In some embodiments, the nylon material comprises the following components in percentage by mass:
75-90% of nylon resin, 10-20% of wear-resistant additive and 2-10% of wear-resistant additive.
The nylon resin is used as matrix resin, the mass fraction of the nylon resin is controlled to be 75-90%, the mechanical property and the wear resistance are optimal under the proportional condition, the too large mass fraction results in too few wear-resistant components and too low wear resistance, and the too small mass fraction results in too few resin and poor mechanical property.
The mass fraction of the wear-resistant additive is controlled to be 10% -20%, the mechanical property, wear resistance and processability of the material are optimal under the proportional condition, the dispersibility is poor due to overlarge mass fraction value, the material cannot be well mixed with a matrix material, the mechanical property of the material is poor, and the wear resistance of the material is poor due to undersize.
The filled beads are used as a wear-resistant additive, the mass fraction of the filled beads is controlled to be 2% -10%, the mechanical property, the wear-resistant property and the processability of the material are optimal under the proportional condition, the mechanical property of the material is influenced if the mass fraction is too large, and the wear resistance of the material is poor if the mass fraction is too small.
According to another exemplary embodiment of the present invention, there is provided a method for preparing an abrasion-resistant nylon material, the nylon material being the abrasion-resistant nylon material as described above; the method comprises the following steps:
s0, drying the nylon resin at 100 ℃ by air blasting for 3-5 h;
s1, premixing nylon resin, a wear-resistant additive and a wear-resistant additive to obtain a premix;
specifically, in the embodiment, the dried nylon resin, the polytetrafluoroethylene filled with the Gemini surfactant modified calcium carbonate and the hollow microspheres subjected to the KH550 surface treatment are sequentially poured into a stirring barrel, the materials are premixed for 3-5 min, and the initial mixture is prepared after uniform mixing.
And S2, melting and granulating the premix to obtain the nylon material.
Specifically, in this example, the initial mixture was heated, melted, and pelletized by a twin-screw extruder to obtain a cenosphere-reinforced nylon material.
In some embodiments, the temperature of the heat-melting is 250-275 ℃.
According to another exemplary embodiment of the present invention, there is provided a member, at least a portion of the material of the member comprising a wear resistant nylon material as described above. Specifically, the member may be a gear, a cam, a bearing, or the like.
The following will describe the abrasion resistant nylon material of the present application, its preparation method and application in detail with reference to examples, comparative examples and experimental data.
Examples and comparative examples
A hollow microsphere reinforced nylon material and a preparation method thereof, the method comprises the following steps:
(1) According to the material formula, the material comprises the following components in percentage by mass: 75-90% of nylon resin, 10-20% of polytetrafluoroethylene filled with Gemini surfactant modified calcium carbonate and 2-10% of hollow microspheres subjected to surface treatment of KH550, and accurately weighing the components;
the formulations of the examples and comparative examples are as follows:
| example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Nylon resin | 85.0％ | 80.0％ | 82.0％ | 100％ | 85.0％ | 85.0％ |
| Polytetrafluoroethylene | 10.0％ | 12.5％ | 15.0％ | / | 15.0％ | / |
| Hollow micro-bead | 5.0％ | 7.5％ | 3.0％ | / | / | 15.0％ |
(2) Sequentially pouring the dried nylon resin, polytetrafluoroethylene filled with Gemini surfactant modified calcium carbonate and hollow microspheres subjected to KH550 surface treatment into a stirring barrel, premixing the materials for 3-5 min, and uniformly mixing to obtain an initial mixture
(3) Putting the initial mixed material into a main feeding hopper of a double-screw extruder, heating and melting, extruding and granulating to finally obtain the PPS composite material; wherein the specific processing temperature of the double-screw extruder is controlled to be 240-260 ℃.
Examples of the experiments
The materials obtained in examples 1 to 3 and comparative examples 1 to 3 were subjected to the property test, and the test results are shown in the following table:
| example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Tensile strength/MPa | 72.1 | 73.5 | 75.4 | 61.3 | 56.4 | 68.4 |
| Flexural Strength/MPa | 145.9 | 148.7 | 143.2 | 135.6 | 126.9 | 146.4 |
| Impact strength/Mpa of simply supported beam gap | 96.4 | 99.1 | 98.9 | 95.8 | 86.7 | 99.7 |
| Mass melt index g/10min | 19.5 | 21.5 | 20.6 | 13.5 | 20.1 | 18.6 |
| Coefficient of friction | 0.31 | 0.28 | 0.30 | 0.48 | 0.40 | 0.41 |
The above table shows that in the comparative example, after the polytetrafluoroethylene is added alone, the mechanical properties of the material are reduced to some extent, but the melt index of the material is obviously improved, the processability of the composite material is improved, and meanwhile, the wear resistance is greatly improved, because the relatively complete crystal structure of the nylon resin is damaged to a certain extent due to the addition of the polytetrafluoroethylene, so that the mechanical properties of the nylon resin are reduced to different extents. And because of the better wear resistance and self-lubricity of the polytetrafluoroethylene, the wear resistance and the processability of the material are improved.
After the hollow microspheres are independently added, the mechanical property of the material is improved, and the material has better wear resistance and processability.
In the embodiments 1-3 of the invention, the polytetrafluoroethylene and the hollow microspheres are compounded in different proportions, so that the material is endowed with excellent mechanical property, wear resistance and processability, the dosage of independently adding the polytetrafluoroethylene or the hollow microspheres is reduced, and the cost is reduced.
In the hollow microsphere reinforced nylon material prepared in the embodiments 1 to 3, the load between the coupled pairs is firstly borne by the hollow microsphere filler particles with higher strength and hardness in the friction process, and the hollow microsphere filler with higher wear resistance and the polytetrafluoroethylene additive form a transfer film which is firmly, thinly and uniformly combined in the friction process, so that the abrasion of the polymer is reduced, and the friction factor of the material is greatly reduced. The hollow microsphere surface treated by the silane coupling agent can improve the compatibility of the nylon resin and the hollow microsphere, so that the mechanical property of the composite material is increased.
The hollow microsphere reinforced nylon material prepared in the embodiments 1 to 3 of the invention can greatly prolong the service life of the hollow microsphere reinforced nylon material as engineering plastic in the fields of precision machinery, automobiles, machine tools and the like.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A wear resistant nylon material, wherein the nylon material comprises the following components:
nylon resin, wear-resistant auxiliary agent and filling beads;
the wear-resistant auxiliary comprises the following raw materials: the adhesive comprises polytetrafluoroethylene, calcium carbonate, a Gemini surfactant and paraffin, wherein the structural formula of the Gemini surfactant is as follows:
2. the abrasion resistant nylon material of claim 1, wherein the filler beads comprise cenospheres having a particle size of 5 μm or less.
3. The abrasion resistant nylon material of claim 2, wherein the composition of the cenospheres comprises SiO 2 And Al 2 O 3 。
4. The abrasion resistant nylon material of claim 2, wherein the cenospheres comprise a bead body and an organic group built into the bead body.
5. The wear-resistant nylon material as claimed in claim 1, wherein the wear-resistant auxiliary comprises the following raw materials in parts by weight: 70-75 parts of polytetrafluoroethylene, 25-30 parts of calcium carbonate, 0.10-0.25 part of Gemini surfactant and 0.25-0.5 part of paraffin.
6. The wear-resistant nylon material as claimed in claim 5, wherein the raw material of the wear-resistant additive further comprises 0.006-0.024 parts by weight of an antioxidant.
7. The abrasion resistant nylon material of claim 5, wherein the calcium carbonate is in the form of a powder having a particle size of 2500-3500 mesh.
8. The abrasion resistant nylon material of claim 1, wherein the nylon material comprises the following components in mass fraction:
75-90% of nylon resin, 10-20% of wear-resistant additive and 2-10% of wear-resistant additive.
9. A method for preparing a wear-resistant nylon material, wherein the nylon material is the wear-resistant nylon material of any one of claims 1 to 8; the method comprises the following steps:
premixing nylon resin, wear-resistant additive and wear-resistant additive to obtain a premix;
and melting and granulating the premix to obtain the nylon material.
10. A member, characterized in that at least part of the material of the member comprises the wear resistant nylon material according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211023739.5A CN115322560A (en) | 2022-08-24 | 2022-08-24 | Wear-resistant nylon material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211023739.5A CN115322560A (en) | 2022-08-24 | 2022-08-24 | Wear-resistant nylon material and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115322560A true CN115322560A (en) | 2022-11-11 |
Family
ID=83925514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211023739.5A Pending CN115322560A (en) | 2022-08-24 | 2022-08-24 | Wear-resistant nylon material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115322560A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4714740A (en) * | 1985-12-23 | 1987-12-22 | General Motors Corporation | Low coefficient of friction nylon blend |
| CN1339526A (en) * | 2001-09-21 | 2002-03-13 | 刘承晖 | Process for producing hollow micro bead filled resin base composite material |
| US20140371378A1 (en) * | 2013-06-12 | 2014-12-18 | Sabic Global Technologies B.V. | Wear resistant compositions with low particulate contamination and method of making those compositions |
| CN106084591A (en) * | 2016-08-05 | 2016-11-09 | 武汉工程大学 | A kind of Gemini surface active modified glass-fiber/calcium carbonate/politef trielement composite material and preparation method thereof |
| CN106221082A (en) * | 2016-07-25 | 2016-12-14 | 武汉工程大学 | A kind of composite of Gemini surface active modified calcium carbonate filled polytetrafluoroethylene and preparation method thereof |
| CN107446346A (en) * | 2017-09-27 | 2017-12-08 | 株洲时代新材料科技股份有限公司 | A kind of wear-resisting high-temperature nylon composite of fibre reinforced and preparation method thereof |
-
2022
- 2022-08-24 CN CN202211023739.5A patent/CN115322560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4714740A (en) * | 1985-12-23 | 1987-12-22 | General Motors Corporation | Low coefficient of friction nylon blend |
| CN1339526A (en) * | 2001-09-21 | 2002-03-13 | 刘承晖 | Process for producing hollow micro bead filled resin base composite material |
| US20140371378A1 (en) * | 2013-06-12 | 2014-12-18 | Sabic Global Technologies B.V. | Wear resistant compositions with low particulate contamination and method of making those compositions |
| CN105324435A (en) * | 2013-06-12 | 2016-02-10 | 沙特基础全球技术有限公司 | Wear resistant compositions with low particulate contamination and method of making those compositions |
| CN106221082A (en) * | 2016-07-25 | 2016-12-14 | 武汉工程大学 | A kind of composite of Gemini surface active modified calcium carbonate filled polytetrafluoroethylene and preparation method thereof |
| CN106084591A (en) * | 2016-08-05 | 2016-11-09 | 武汉工程大学 | A kind of Gemini surface active modified glass-fiber/calcium carbonate/politef trielement composite material and preparation method thereof |
| CN107446346A (en) * | 2017-09-27 | 2017-12-08 | 株洲时代新材料科技股份有限公司 | A kind of wear-resisting high-temperature nylon composite of fibre reinforced and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 赵正平，栾道成，饶耀: "PTFE/Nano-CaCO3复合材料组织性能研究", 塑料, no. 5, pages 28 - 30 * |
| 陈宝书，栾道成，魏倩，徐涛，赵正平: "聚四氟乙烯/纳米CaCO3复合材料制备及性能研究", 化工新型材料, vol. 38, no. 6, pages 105 - 107 * |
| 陈松涛，李松田，闫永胜，霍鹏伟，徐婉珍: "空心微珠的开发及应用研究进展", 环境科学与管理, vol. 2007, no. 3, pages 103 - 107 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111087806A (en) | High-strength wear-resistant nylon composite material and preparation method thereof | |
| CN103419293B (en) | Rubber masterbatch prepared by the method for continuously producing of rubber masterbatch and the method | |
| CN101130633A (en) | High impact polyphenylene sulfide alloy material and method of producing the same | |
| CN102127252B (en) | High hardness butadiene-acrylonitrile rubber and preparation method thereof | |
| CN108083818B (en) | Structure-enhanced photocuring resin-based ceramic composite material and blank degreasing method | |
| CN111040440A (en) | Low-density high-wear-resistance nylon composite material and preparation method and application thereof | |
| CN102585495A (en) | Hydrolysis-resistant glass fiber reinforced polyamide 66 (PA66) composite material and preparation method thereof | |
| CN115322560A (en) | Wear-resistant nylon material and preparation method and application thereof | |
| CN109880281A (en) | A kind of activeness and quietness polyformaldehyde composite material and preparation method thereof | |
| CN101143959A (en) | Polyformaldehyde composition and preparation method thereof | |
| CN103419292B (en) | Rubber masterbatch prepared by the method for continuously producing of rubber masterbatch and the method | |
| CN105670214A (en) | Highly-wear-resistant silicon nitride/polyformaldehyde nano composite material and preparation method thereof | |
| CN105623250A (en) | Polyamide, glass fiber and interface bonding agent composite and preparation method thereof | |
| CN105670280A (en) | Glass-fiber-reinforced polyamide 6 (PA6) material for vehicle lights and preparation method thereof | |
| CN105647174A (en) | Wear-resistant and high-temperature resistant nylon composite material and preparation method therefor | |
| CN101275015A (en) | Preparation for fiberglass-containing polyphenyl thioether composite granulates | |
| CN113277777B (en) | Thermosetting natural rubber asphalt mixture and preparation method thereof | |
| CN105968484A (en) | Nanometer-calcium-oxide-doped filling master batch for PE bellows and preparation method of filling master batch | |
| CN115651394A (en) | Nano-scale polyamide composite material and preparation method and application thereof | |
| CN1446856A (en) | High strength condensed type combination of organosilicon die glue | |
| US4336178A (en) | Process for preparing abrasion and corrosion resistant material | |
| CN101955656A (en) | Glass fiber enhanced nylon 6 material for improving transparency | |
| CN114163816B (en) | Wear-resistant reinforced PPS composition and preparation method and application thereof | |
| JP2002265752A (en) | Phenolic resin molding material | |
| CN111748207B (en) | Polyphenylene sulfide enhanced lubricating composite granules and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221111 |
|
| RJ01 | Rejection of invention patent application after publication |