CN115160770A - Flame-retardant nylon material and preparation method thereof - Google Patents
Flame-retardant nylon material and preparation method thereof Download PDFInfo
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- CN115160770A CN115160770A CN202210998254.1A CN202210998254A CN115160770A CN 115160770 A CN115160770 A CN 115160770A CN 202210998254 A CN202210998254 A CN 202210998254A CN 115160770 A CN115160770 A CN 115160770A
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- 239000004677 Nylon Substances 0.000 title claims abstract description 76
- 229920001778 nylon Polymers 0.000 title claims abstract description 76
- 239000000463 material Substances 0.000 title claims abstract description 43
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000003063 flame retardant Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000002071 nanotube Substances 0.000 claims abstract description 34
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 34
- 239000003365 glass fiber Substances 0.000 claims abstract description 29
- 239000010425 asbestos Substances 0.000 claims abstract description 25
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 25
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 14
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000011246 composite particle Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000004898 kneading Methods 0.000 claims abstract description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 14
- 239000002608 ionic liquid Substances 0.000 claims description 8
- 229920000831 ionic polymer Polymers 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- 239000000178 monomer Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 238000006068 polycondensation reaction Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 244000241872 Lycium chinense Species 0.000 description 3
- 235000015468 Lycium chinense Nutrition 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WGACMNAUEGCUHG-VYBOCCTBSA-N (2s)-2-[[(2s)-2-[[(2s)-2-acetamidopropanoyl]amino]propanoyl]amino]-n-[(2s)-6-amino-1-[[(2s)-1-[(2s)-2-[[(2s)-1-[[(2s)-5-amino-1-[[(2s)-1-[[(2s)-1-[[(2s)-6-amino-1-[[(2s)-1-amino-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]amino]-1-oxohexan-2-yl]amino]-3-hydroxy- Chemical compound CC(=O)N[C@@H](C)C(=O)N[C@@H](C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@H](C(N)=O)CC1=CC=C(O)C=C1 WGACMNAUEGCUHG-VYBOCCTBSA-N 0.000 description 1
- ZXMGHDIOOHOAAE-UHFFFAOYSA-N 1,1,1-trifluoro-n-(trifluoromethylsulfonyl)methanesulfonamide Chemical compound FC(F)(F)S(=O)(=O)NS(=O)(=O)C(F)(F)F ZXMGHDIOOHOAAE-UHFFFAOYSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 150000007517 lewis acids Chemical group 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 108010074544 myelin peptide amide-12 Proteins 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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 application discloses a flame-retardant nylon material and a preparation method thereof, wherein the preparation method comprises the steps of melting nylon, and filling the melted nylon into a chiral helical silicon dioxide nanotube; mixing and heating the chiral spiral silicon dioxide nanotube filled with nylon, glass fiber, modified asbestos, a compatilizer and an anti-aging auxiliary agent, and kneading the mixture for at least 10min by using a kneader to obtain a mixture; melting and extruding the obtained mixture through a double-screw extruder to obtain composite particles; and cooling and drying the composite particles to obtain the flame-retardant nylon material. The invention can obtain the nylon material with flame retardant property.
Description
Technical Field
The application relates to the technical field of nylon materials, in particular to a flame-retardant nylon material and a preparation method thereof.
Background
Nylon (PA) is a thermoplastic engineering plastic containing amido bonds (-NHCO-) in the main molecular chain. Since DuPont corporation, USA, introduced in 1930, PA has been widely used in the fields of automobile industry, electronic and electrical appliances, synthetic fibers, construction and the like due to its advantages such as heat resistance, wear resistance, chemical resistance and self-lubricity, and is one of the most productive and wide-ranging engineering plastics in the world today. However, unmodified nylon has poor flame retardant property, belongs to flammable materials, generates drops in the combustion process, and is very easy to cause fire in the use process. Especially in the field of electronic products, the fire caused by nylon is countless, which causes great loss, and if the flame retardant property of nylon is not improved, the application range of the nylon is greatly limited.
Disclosure of Invention
The application aims to overcome the defects in the prior art, and provides the flame-retardant nylon material and the preparation method thereof, so that the nylon material with flame-retardant performance can be obtained.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a flame retardant nylon material comprising:
55-60 parts of nylon;
25-35 parts of glass fiber;
1-10 components of modified asbestos;
1-5 components of a compatilizer;
1-5 components of chiral spiral silicon dioxide nanotubes;
1-2 components of an anti-aging auxiliary agent.
Further, the nylon 58 component;
a glass fiber 30 component;
5, modified asbestos;
a compatilizer 3 component;
a chiral helical silica nanotube 3 component;
and (3) an anti-aging auxiliary agent 1.
Further, the cross section of the glass fiber is elliptical.
Further, the density of the glass fiber is 2.4-2.6g g/cm 3 。
Further, the compatibilizer includes maleic anhydride grafted POE, maleic anhydride grafted PE, or maleic anhydride grafted EPDM.
Further, the length of the chiral helical silica nanotube is 1-3um;
the pipe diameter of the chiral helical silica nanotube is 20-50 nanometers.
On the other hand, the invention provides a preparation method of the flame-retardant nylon material, which comprises the following steps:
melting nylon, and filling the melted nylon into the chiral helical silica nanotube;
mixing and heating the chiral spiral silicon dioxide nanotube filled with nylon, glass fiber, modified asbestos, a compatilizer and an anti-aging auxiliary agent, and kneading the mixture for at least 10min by using a kneader to obtain a mixture; the mixing and heating temperature is 210-220 DEG C
Melting and extruding the obtained mixture through a double-screw extruder to obtain composite particles;
and cooling and drying the composite particles to obtain the flame-retardant nylon material.
Further, the preparation steps of the chiral helical silica nanotube comprise:
based on the hydrogen bond effect, after attaching the silicon original monomer to the surface of the chiral template, the silicon original monomer is subjected to polycondensation to obtain the chiral spiral silicon dioxide nanotube.
Further, the preparation steps of the modified asbestos comprise:
and (3) immersing the asbestos fiber in the ionic liquid for 12-24h to obtain the modified asbestos.
Further, the ionic liquid is alkoxy polyionic liquid
Compared with the prior art, the invention has the following beneficial effects:
the flame-retardant nylon material comprising the glass fiber, the modified asbestos, the compatilizer, the chiral helical silicon dioxide nanotube and the anti-aging auxiliary agent has the advantages of level and neat appearance, thermal deformation temperature as high as 210 ℃, and good tensile strength, bending modulus and notch impact strength.
Detailed Description
Example 1
The embodiment provides a flame-retardant nylon material.
The flame-retardant nylon material of the embodiment comprises: 55-60 parts of nylon; 25-35 parts of glass fiber; 1-10 components of modified asbestos; 1-5 components of a compatilizer; 1-5 components of chiral helical silicon dioxide nanotubes; 1-2 components of an anti-aging auxiliary agent.
In practical application of this example, the nylon 58 component; a glass fiber 30 component; 5, modified asbestos; a compatilizer 3 component; a chiral helical silica nanotube 3 component; and (3) an anti-aging auxiliary agent 1.
Wherein the cross section of the glass fiber is oval, and the density is 2.4-2.6g/cm 3 。
Further, the compatibilizing agent includes maleic anhydride grafted POE, maleic anhydride grafted PE, or maleic anhydride grafted EPDM.
In application, the length of the chiral helical silica nanotube is 1-3um, and the tube diameter is 20-50 nm.
The flame-retardant nylon material comprising the glass fiber, the modified asbestos, the compatilizer, the chiral helical silicon dioxide nanotube and the anti-aging auxiliary agent has the flame-retardant characteristic.
Example 2
On the basis of example 1, this example describes a preparation method of a flame retardant nylon material in detail.
The preparation method of the flame-retardant nylon material comprises the following steps:
s1, melting nylon, and filling the melted nylon into the chiral helical silica nanotube.
In application, the preparation steps of the chiral helical silica nanotube comprise: based on the hydrogen bond action, after attaching the silicon original monomer to the surface of the chiral template, the silicon original monomer is subjected to polycondensation to obtain the chiral spiral silicon dioxide nanotube.
S2, mixing and heating the chiral helical silica nanotube filled with nylon, the glass fiber, the modified asbestos, the compatilizer and the anti-aging auxiliary agent, and kneading the mixture for at least 10min by using a kneader to obtain a mixture.
Wherein, the preparation steps of the modified asbestos comprise: and immersing the asbestos fiber in the ionic liquid for 12-24h to obtain the modified asbestos. In practical application, the ionic liquid is alkoxy poly ionic liquid. In addition, conventional polyionic liquids can be designed as highly efficient adhesives by simply incorporating pendant alkoxy groups into the cationic backbone of the dianionic polyionic liquid. Wherein, the dianion is trifluoromethanesulfonimide and TFSI-.
In application, the flexible alkoxy side chain not only obviously reduces the glass transition temperature of the polyion liquid, but also enables molecules to have strong hydrogen bonds, and in addition, the intramolecular electrostatic interaction enables the alkoxy polyion liquid to have higher cohesive energy and interface adhesion energy.
Wherein the cross section of the glass fiber is elliptical, and the density of the glass fiber is 2.4-2.6g/cm 3 . By adding the glass fiber with the oval cross section, the orientation of the nylon material can be reduced, and the mechanical property of the nylon material is optimized.
In practical application, under a high-temperature condition, the ionic liquid is in a liquid state and flows to the surface of the flame-retardant nylon material along the asbestos fiber, so that the flame-retardant effect is achieved.
The nylon of the embodiment is soaked in the chiral helical silicon dioxide nanotube pipeline, so that the chiral helical silicon dioxide nanotube and the nylon can be fused together; in this embodiment, based on the spiral structure of the chiral helical silica nanotube, the glass fiber and the modified asbestos are tightly wound around the chiral helical silica nanotube, so that the nylon, the glass fiber and the modified asbestos are tightly combined, the mechanical properties of the flame-retardant nylon material are improved, and the curves of exposure and warping of the glass fiber are reduced.
In practical application, the preparation method of the flame-retardant nylon material further comprises the step of adding calcium chloride and anhydrous magnesium carbonate into a kneader.
The calcium chloride is Lewis acid, and the calcium chloride and the nylon generate a complex reaction, so that the movement of a nylon molecular chain is limited, the crystallinity of the nylon is hindered, the shrinkage rate of an injection molding piece of the nylon is reduced, a finished product forms a good appearance, and the shrinkage wall and the warpage are reduced.
The anhydrous magnesium carbonate can absorb heat during combustion, and meanwhile, the anhydrous magnesium carbonate is decomposed to generate carbon dioxide, so that the oxygen concentration at the periphery of the nylon material can be reduced, and the flame-retardant effect is achieved.
In practical application of this example, the mixing and heating temperature was 210-220 ℃.
And S3, carrying out melt extrusion on the obtained mixture through a double-screw extruder to obtain composite particles.
In use, the twin screw extruder was operated at 250rpm.
In practical application, the temperature of each zone of the double-screw extruder is set as follows: 220-230 ℃ in the first zone, 230-240 ℃ in the second zone, 230-240 ℃ in the third zone, 240-250 ℃ in the fourth zone, 250-260 ℃ in the fifth zone, 260-270 ℃ in the sixth zone, 270-280 ℃ in the seventh zone, 270-280 ℃ in the eighth zone, 260-270 ℃ in the ninth zone and 260-270 ℃ in the tenth zone.
In addition, the residence time in each zone is from 1 to 2 minutes and the pressure is from 12 to 18MPa.
And S4, cooling and drying the composite particles to obtain the flame-retardant nylon material.
In use, the composite particles are dried by cooling at room temperature.
Examples 3 to 5
Examples 3-5 and comparative examples 1-2 flame retardant nylon materials were prepared according to the materials and components of table 1, and the comprehensive properties of the flame retardant nylon materials obtained in the examples were tested according to the testing methods or conditions in table 2, and the testing results are detailed in table 3.
Table 1 examples materials and their components
| Nylon | Glass fiber | Modification of Asbestos | Compatilizer | Chiral helical silica nanotubes | Anti-aging Chemical aid Agent for treating cancer | |
| Fruit of Chinese wolfberry Applying (a) to Example 3 | Nylon 55 groups of Is divided into | 2.4g/cm 3 Glass 25 groups of glass fibers Is divided into | Group 1 Is divided into | Maleic anhydride grafting Branch POE 1 group Is divided into | The length is 1um; hand with 20 nm pipe diameter Group 1 of helical silica nanotubes Is divided into | 1 component (A) |
| Fruit of Chinese wolfberry Applying for medical instruments Example 4 | Nylon 58 groups of Is divided into | 2.5g/cm 3 Glass 30 groups of glass fibers Is divided into | 5 groups of Is divided into | Maleic anhydride grafting Branched EPDM3 group Is divided into | The length is 1.5um; of diameter 35 nm Chiral helical 3 component | 1 component (A) |
| Fruit of Chinese wolfberry Applying for medical instruments Example 5 | Nylon 60 groups of Is divided into | 2.6g/cm 3 Glass Glass fiber35 groups of Is divided into | 10 groups of Is divided into | Maleic anhydride grafting Branched PE5 component | The length is 3um; hand with pipe diameter of 50 nanometers 5 groups of helical silica nanotubes Is divided into | 2 component (A) |
| For is to Than Example 1 | Nylon 58 groups of Is divided into | 2.5g/cm 3 Glass 30 groups of glass fibers Is divided into | Group 0 Is divided into | Maleic anhydride grafting Branched EPDM3 group Is divided into | The length is 1.5um; of diameter 35 nm Chiral helical 3 component | 1 component (A) |
| To pair Ratio of Example 2 | Nylon 58 groups of Is divided into | 2.5g/cm 3 Glass 30 groups of glass fibers Is divided into | Group 0 Is divided into | Maleic anhydride grafting Branched EPDM3 group Is divided into | 0 component (B) | 1 component (A) |
TABLE 2 method or Condition for testing the comprehensive Properties of flame-retardant Nylon Material
| Detection method or Condition | |
| Tensile strength | Reference standard: ISO527-2; and (3) testing conditions are as follows: the clamping distance is 50mm, and the speed is 50mm/min. |
| Bending strength | Reference standard: ISO178; and (3) testing conditions are as follows: span 64mm, speed 2mm/min. |
| Flexural modulus | Reference standard: ISO178 |
| Notched impact strength | Reference standard: ISO179; and (3) testing conditions are as follows: the span is 62mm. |
| Flame retardancy | Reference standard: UL-94. |
| Heat distortion temperature | Reference standard: ISO75; and (3) testing conditions are as follows: the bending stress was 1.80MPa. |
TABLE 3 comprehensive Properties of flame-retardant Nylon Material
| High tensile strength Degree of rotation | Strong bending Degree of rotation | Bending die Measurement of | Impact of notch Strength of | Thermal deformation Temperature of | Flame-retardant Property of (2) | Whether or not there is Warping of | Whether there is glass fiber Exposed part | |
| Practice of Example 3 | 175 MPa | 230 MPa | 8500 MPa | 15 kJ/m 2 | 200℃ | V0 | Is composed of | Is free of |
| Practice of Example 4 | 190 MPa | 250 MPa | 9500 MPa | 12 kJ/m 2 | 210℃ | V0 | Is free of | Is free of |
| Practice of Example 5 | 150 MPa | 200 MPa | 8500 MPa | 6 kJ/m 2 | 206℃ | V0 | Is composed of | Is free of |
| Comparison of Example 1 | 130MPa | 180 MPa | 5500 MPa | 8 kJ/m 2 | 182℃ | V1 | Is free of | Is provided with |
| Comparison of Example 2 | 140MPa | 190 MPa | 6500 MPa | 9 kJ/m 2 | 180℃ | V1 | Is provided with | Is provided with |
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.
Claims (10)
1. A flame retardant nylon material, comprising: 55-60 parts of nylon;
25-35 parts of glass fiber;
1-10 components of modified asbestos;
1-5 components of a compatilizer;
1-5 components of chiral helical silicon dioxide nanotubes;
1-2 components of an anti-aging auxiliary agent.
2. The flame retardant nylon material of claim 1, wherein the nylon 58 component;
a glass fiber 30 component;
5 components of modified asbestos;
a compatilizer 3 component;
a chiral helical silica nanotube 3 component;
and (3) an anti-aging auxiliary agent 1.
3. The flame retardant nylon material of claim 1, wherein the cross section of the glass fiber is elliptical.
4. The flame retardant nylon material of claim 1, wherein the glass fibers have a density of 2.4-2.6g/cm 3 。
5. The flame retardant nylon material of claim 1, wherein the compatibilizer comprises maleic anhydride grafted POE, maleic anhydride grafted PE, or maleic anhydride grafted EPDM.
6. The flame retardant nylon material of claim 1 wherein the chiral helical silica nanotubes are 1-3um long;
the pipe diameter of the chiral helical silica nanotube is 20-50 nanometers.
7. The preparation method of the flame-retardant nylon material is characterized by comprising the following steps:
melting nylon, and filling the melted nylon into the chiral helical silica nanotube;
mixing and heating the chiral spiral silicon dioxide nanotube filled with nylon, glass fiber, modified asbestos, a compatilizer and an anti-aging auxiliary agent, and kneading the mixture for at least 10min by using a kneader to obtain a mixture;
carrying out melt extrusion on the obtained mixture through a double-screw extruder to obtain composite particles;
and cooling and drying the composite particles to obtain the flame-retardant nylon material.
8. The method for preparing the flame-retardant nylon material according to claim 7, wherein the step of preparing the chiral helical silica nanotube comprises:
based on the hydrogen bond action, after attaching the silicon original monomer to the surface of the chiral template, the silicon original monomer is subjected to polycondensation to obtain the chiral spiral silicon dioxide nanotube.
9. The method for preparing the flame-retardant nylon material according to claim 7, wherein the modified asbestos is prepared by the steps of:
and immersing the asbestos fiber in the ionic liquid for 12-24h to obtain the modified asbestos.
10. The method for preparing the flame-retardant nylon material according to claim 9, wherein the ionic liquid is an alkoxy polyionic liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210998254.1A CN115160770A (en) | 2022-08-19 | 2022-08-19 | Flame-retardant nylon material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210998254.1A CN115160770A (en) | 2022-08-19 | 2022-08-19 | Flame-retardant nylon material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115160770A true CN115160770A (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210998254.1A Pending CN115160770A (en) | 2022-08-19 | 2022-08-19 | Flame-retardant nylon material and preparation method thereof |
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- 2022-08-19 CN CN202210998254.1A patent/CN115160770A/en active Pending
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Application publication date: 20221011 |