CN118006118A - Halogen-free flame-retardant biaxially oriented nylon film and preparation method thereof - Google Patents
Halogen-free flame-retardant biaxially oriented nylon film and preparation method thereof Download PDFInfo
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- CN118006118A CN118006118A CN202410096453.2A CN202410096453A CN118006118A CN 118006118 A CN118006118 A CN 118006118A CN 202410096453 A CN202410096453 A CN 202410096453A CN 118006118 A CN118006118 A CN 118006118A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 83
- 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 78
- 229920006284 nylon film Polymers 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000004677 Nylon Substances 0.000 claims abstract description 48
- 229920001778 nylon Polymers 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- -1 poly (m-xylylene adipamide Chemical compound 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 150000001263 acyl chlorides Chemical class 0.000 claims description 7
- IAZSXUOKBPGUMV-UHFFFAOYSA-N 1-butyl-3-methyl-1,2-dihydroimidazol-1-ium;chloride Chemical compound [Cl-].CCCC[NH+]1CN(C)C=C1 IAZSXUOKBPGUMV-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000005543 nano-size silicon particle Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- YVOFTMXWTWHRBH-UHFFFAOYSA-N pentanedioyl dichloride Chemical compound ClC(=O)CCCC(Cl)=O YVOFTMXWTWHRBH-UHFFFAOYSA-N 0.000 claims description 4
- SXYFKXOFMCIXQW-UHFFFAOYSA-N propanedioyl dichloride Chemical compound ClC(=O)CC(Cl)=O SXYFKXOFMCIXQW-UHFFFAOYSA-N 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 claims description 3
- 229920000571 Nylon 11 Polymers 0.000 claims description 3
- 229920000299 Nylon 12 Polymers 0.000 claims description 3
- 229920002292 Nylon 6 Polymers 0.000 claims description 3
- PWAXUOGZOSVGBO-UHFFFAOYSA-N adipoyl chloride Chemical compound ClC(=O)CCCCC(Cl)=O PWAXUOGZOSVGBO-UHFFFAOYSA-N 0.000 claims description 3
- 229920000305 Nylon 6,10 Polymers 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000012295 chemical reaction liquid Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000002244 precipitate Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZDERHIYDYLUKHZ-UHFFFAOYSA-N bis(2-aminoethyl) ethyl phosphate Chemical compound NCCOP(=O)(OCC)OCCN ZDERHIYDYLUKHZ-UHFFFAOYSA-N 0.000 description 1
- ARKHANLODLSDSU-UHFFFAOYSA-N bis(2-aminoethyl) hexyl phosphate Chemical compound CCCCCCOP(=O)(OCCN)OCCN ARKHANLODLSDSU-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052567 struvite Inorganic materials 0.000 description 1
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention provides a halogen-free flame-retardant biaxially oriented nylon film and a preparation method thereof. Belongs to the technical field of films. According to the invention, the flame-retardant tackifying nylon is obtained by chain extension of low-viscosity nylon and introduction of flame-retardant chain links, and then the cast sheet obtained by melt extrusion of the flame-retardant tackifying nylon is synchronously biaxially stretched, so that the biaxially oriented nylon film with excellent flame retardance, barrier property and mechanical strength is obtained. Effectively avoids the problems of two-way stretching process faults caused by blending the flame retardant and film performance reduction caused by copolymerizing the flame retardant.
Description
Technical Field
The invention belongs to the technical field of films, and particularly relates to a flame-retardant biaxially oriented nylon film and a preparation method thereof.
Background
In order to improve the flame retardant performance of the nylon film, flame retardants such as aluminum hydroxide, magnesium hydroxide, ammonium phosphate, and triethyl phosphate are generally added. In order to achieve a better flame-retardant effect, the addition amount of the traditional flame retardant is generally 10-40% of the weight of the resin. However, the addition of such a large amount of flame retardant causes faults such as film rupture, film breakage and the like in the production of biaxially oriented nylon film, and the mechanical properties of the film are poor. In order to avoid the adverse effect of adding flame retardant on the film performance and production process, nylon monomer or nylon prepolymer, flame retardant monomer, corresponding amine or acid can be polymerized to obtain the bulk flame retardant nylon. The existence of the flame-retardant chain links in the molecular chain of the body flame-retardant nylon breaks down the hydrogen bond action among nylon molecules, so that the biaxially oriented nylon film prepared by taking the body flame-retardant nylon as the raw material has poor barrier property. Therefore, development of new flame-retardant biaxially oriented nylon products and production processes are needed to prepare nylon films with high flame retardance, barrier property and tensile strength.
The molecular weight of the low-viscosity nylon is obviously higher than that of the nylon prepolymer, and the low-viscosity nylon is mainly used for producing products such as films, adhesive tapes and the like. The low-viscosity nylon is subjected to chain extension polymerization, so that new properties of the nylon can be endowed on the basis of ensuring hydrogen bonds among nylon molecules. The invention carries out chain extension polymerization on the low-viscosity nylon, the acyl chloride and the flame-retardant molecules to obtain the flame-retardant high-viscosity nylon, and then carries out synchronous biaxial stretching to obtain the flame-retardant biaxial stretching nylon film product with excellent comprehensive properties.
Disclosure of Invention
Aiming at the defect of the flame retardant property of the prior biaxially oriented nylon film, the invention provides a halogen-free flame retardant biaxially oriented nylon film and a preparation method thereof.
The invention provides a halogen-free flame-retardant biaxially oriented nylon film, which is characterized in that flame-retardant tackifying nylon is used as a base material;
preferably, the flame-retardant tackifying nylon is a product of chain extension polymerization of low-viscosity nylon, acyl chloride and flame-retardant molecules;
Preferably, the acyl chloride is one or a combination of a plurality of malonyl chloride, glutaryl chloride and adipoyl chloride;
preferably, the flame retardant molecule has a molecular structure as described in chemical formula 1:
[ chemical formula 1]
In chemical formula 1, n is an integer of 1 to 8.
Preferably, the viscosity of the low-viscosity nylon is 1.6-2.3.
Preferably, the low-viscosity nylon is selected from one or more than two of nylon 6, nylon 66, nylon 610, nylon 11 and nylon 12.
Preferably, the viscosity of the flame-retardant tackifying nylon is 3.0-3.4.
The invention provides a preparation method of a halogen-free flame-retardant biaxially oriented nylon film, which comprises the following steps:
(1) Preparation of flame-retardant tackifying nylon: according to weight, 20-30 parts of low-viscosity nylon is dissolved in 100 parts of 1-butyl-3-methylimidazole chloride salt, 10-20 parts of acyl chloride and 5-12 parts of triethylamine are added, 10-15 parts of flame retardant molecules are slowly added, stirring reaction is carried out at room temperature for 12-20 hours, reaction liquid is poured into deionized water, absolute ethyl alcohol and deionized water are used for alternately washing sediment, and flame retardant tackifying nylon is obtained after drying;
(2) Biaxial stretching of nylon film: 93-97 parts of flame-retardant tackifying nylon, 2-4 parts of nano silicon dioxide and 1-3 parts of poly (m-xylylene adipamide) are mixed by weight and then are melted and extruded into a casting sheet, and then the casting sheet is subjected to synchronous biaxial stretching to obtain the halogen-free flame-retardant biaxial stretching nylon film, wherein the stretching temperature is 130-160 ℃, the transverse stretching multiplying power is 1.5-1.8, and the longitudinal stretching multiplying power is 1.6-2.6.
Preferably, the halogen-free flame-retardant biaxially oriented nylon film has a flame retardant grade of V-0, an oxygen transmittance of 10-50 mL/m2.day.atm, a tensile strength of 220-280 MPa and an elongation at break of 110-140%.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the low-viscosity nylon is subjected to chain extension polymerization to obtain the flame-retardant high-viscosity nylon meeting the biaxial stretching process, and then synchronous biaxial stretching is performed to obtain the halogen-free flame-retardant biaxially stretched nylon film with excellent comprehensive performance, so that the problems of the biaxial stretching process failure caused by blending the flame retardant and the film performance reduction caused by copolymerizing the flame retardant are effectively avoided.
Drawings
FIG. 1 is a schematic diagram of the principle and structure of the preparation method of the present invention.
Detailed Description
The invention is further illustrated by the following examples.
Example 1
The embodiment provides a preparation method of a halogen-free flame-retardant biaxially oriented nylon film, which comprises the following steps:
(1) Dissolving 20 parts of nylon 6 with the viscosity of 1.6 in 100 parts of 1-butyl-3-methylimidazole chloride, adding 10 parts of malonyl chloride and 5 parts of triethylamine, slowly adding 10 parts of bis (2-aminoethyl) ethyl phosphate, stirring at room temperature for reaction for 12 hours, pouring the reaction solution into deionized water, alternately washing the precipitate with absolute ethyl alcohol and deionized water, and drying to obtain flame-retardant tackifying nylon with the viscosity of 3.4;
(2) And mixing 95 parts of flame-retardant tackifying nylon, 2 parts of nano silicon dioxide and 3 parts of poly (m-xylylene adipamide) and then carrying out melt extrusion to obtain a cast sheet, and then carrying out synchronous biaxial stretching on the cast sheet to obtain the halogen-free flame-retardant biaxially oriented nylon film, wherein the stretching temperature is 130 ℃, the transverse stretching multiplying power is 1.5, and the longitudinal stretching multiplying power is 1.6.
The flame retardant grade of the halogen-free flame retardant biaxially oriented nylon film is V-0, the oxygen transmission rate is 23 mL/m2.day.atm, the tensile strength is 260MPa, and the elongation at break is 120%.
Example 2
The embodiment provides a preparation method of a halogen-free flame-retardant biaxially oriented nylon film, which comprises the following steps:
(1) 30 parts of nylon 66 with the viscosity of 2.3 is dissolved in 100 parts of 1-butyl-3-methylimidazole chloride, 20 parts of adipoyl chloride and 12 parts of triethylamine are added, then 15 parts of bis (2-amino ethyl) propyl phosphate are slowly added, the reaction solution is poured into deionized water after stirring and reacting for 16 hours at room temperature, the precipitate is alternately washed by absolute ethyl alcohol and deionized water, and the flame-retardant tackifying nylon with the viscosity of 3.0 is obtained after drying;
(2) 97 parts of flame-retardant tackifying nylon, 2 parts of nano silicon dioxide and 1 part of poly (m-xylylene adipamide) are mixed and then are melted and extruded into a cast sheet, and then the cast sheet is subjected to synchronous biaxial stretching to obtain the halogen-free flame-retardant biaxially oriented nylon film, wherein the stretching temperature is 160 ℃, the transverse stretching multiplying power is 1.8, and the longitudinal stretching multiplying power is 2.6.
The flame retardant grade of the halogen-free flame retardant biaxially oriented nylon film is V-0, the oxygen transmittance is 10 mL/m2.day.atm, the tensile strength is 220MPa, and the elongation at break is 140%.
Example 3
The embodiment provides a preparation method of a halogen-free flame-retardant biaxially oriented nylon film, which comprises the following steps:
(1) Dissolving 25 parts of nylon 12 with the viscosity of 1.8 in 100 parts of 1-butyl-3-methylimidazole chloride, adding 15 parts of glutaryl chloride and 8 parts of triethylamine, slowly adding 13 parts of bis (2-aminoethyl) hexyl phosphate, stirring at room temperature for reaction for 20 hours, pouring the reaction solution into deionized water, alternately washing the precipitate with absolute ethyl alcohol and deionized water, and drying to obtain the flame-retardant tackifying nylon with the viscosity of 3.2;
(2) 93 parts of flame-retardant tackifying nylon, 3 parts of nano silicon dioxide and 4 parts of poly (m-xylylene adipamide) are mixed and then are melted and extruded into a cast sheet, and then the cast sheet is subjected to synchronous biaxial stretching to obtain the halogen-free flame-retardant biaxially oriented nylon film, wherein the stretching temperature is 150 ℃, the transverse stretching multiplying power is 1.7, and the longitudinal stretching multiplying power is 2.2.
The flame retardant grade of the halogen-free flame retardant biaxially oriented nylon film is V-0, the oxygen transmittance is 50 mL/m2.day.atm, the tensile strength is 280MPa, and the elongation at break is 110%.
Example 4
The embodiment provides a preparation method of a halogen-free flame-retardant biaxially oriented nylon film, which comprises the following steps:
(1) 18 parts of nylon 66 with the viscosity of 2.0 and 10 parts of nylon 11 with the viscosity of 2.2 are dissolved in 100 parts of 1-butyl-3-methylimidazole chloride, 5 parts of glutaryl chloride, 10 parts of malonyl chloride and 11 parts of triethylamine are added, then 11 parts of bis (2-aminoethyl) amyl phosphate is slowly added, stirring is carried out at room temperature for reaction for 20 hours, the reaction solution is poured into deionized water, the precipitate is alternately washed by absolute ethyl alcohol and deionized water, and the flame-retardant tackifying nylon with the viscosity of 3.1 is obtained by drying;
(2) And (2) mixing 94 parts of flame-retardant tackifying nylon, 4 parts of nano silicon dioxide and 2 parts of poly (m-xylylene adipamide) and then carrying out melt extrusion to obtain a cast sheet, and then carrying out synchronous biaxial stretching on the cast sheet to obtain the halogen-free flame-retardant biaxially oriented nylon film, wherein the stretching temperature is 140 ℃, the transverse stretching multiplying power is 1.6, and the longitudinal stretching multiplying power is 2.1.
The flame retardant grade of the halogen-free flame retardant biaxially oriented nylon film is V-0, the oxygen transmittance is 36 mL/m2.day.atm, the tensile strength is 230MPa, and the elongation at break is 130%.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, but rather the equivalent variations and modifications in shape, construction, characteristics and spirit according to the scope of the claims should be construed to be included in the scope of the claims.
Claims (6)
1. The halogen-free flame-retardant biaxially oriented nylon film is characterized in that flame-retardant tackifying nylon is used as a base material;
The flame-retardant tackifying nylon is a product of chain extension polymerization of low-viscosity nylon, acyl chloride and flame-retardant molecules; wherein: the acyl chloride is one or a combination of a plurality of malonyl chloride, glutaryl chloride and adipoyl chloride, and the flame retardant molecule has a molecular structure as shown in a chemical formula 1:
[ chemical formula 1]
In chemical formula 1, n is an integer of 1 to 8.
2. The halogen-free flame-retardant biaxially oriented nylon film according to claim 1, wherein the viscosity of the low-viscosity nylon is 1.6-2.3.
3. The halogen-free flame-retardant biaxially oriented nylon film according to claim 1, wherein the low-viscosity nylon is one or a combination of two or more selected from the group consisting of nylon 6, nylon 66, nylon 610, nylon 11 and nylon 12.
4. The halogen-free flame-retardant biaxially oriented nylon film according to claim 1, wherein the viscosity of the flame-retardant tackifying nylon is 3.0-3.4.
5. The method for preparing the halogen-free flame-retardant biaxially oriented nylon film according to any one of claims 1 to 4, which is characterized by comprising the following steps:
(1) Preparation of flame-retardant tackifying nylon: according to weight, 20-30 parts of low-viscosity nylon is dissolved in 100 parts of 1-butyl-3-methylimidazole chloride salt, 10-20 parts of acyl chloride and 5-12 parts of triethylamine are added, 10-15 parts of flame retardant molecules are slowly added, stirring reaction is carried out at room temperature for 12-20 hours, reaction liquid is poured into deionized water, absolute ethyl alcohol and deionized water are used for alternately washing sediment, and flame retardant tackifying nylon is obtained after drying;
(2) Biaxial stretching of nylon film: 93-97 parts of flame-retardant tackifying nylon, 2-4 parts of nano silicon dioxide and 1-3 parts of poly (m-xylylene adipamide) are mixed by weight and then are melted and extruded into a casting sheet, and then the casting sheet is subjected to synchronous biaxial stretching to obtain the halogen-free flame-retardant biaxial stretching nylon film, wherein the stretching temperature is 130-160 ℃, the transverse stretching multiplying power is 1.5-1.8, and the longitudinal stretching multiplying power is 1.6-2.6.
6. The halogen-free flame retardant biaxially oriented nylon film according to claim 1 to 5, wherein the flame retardant rating is V-0, the oxygen transmission rate is 10 to 50 mL/m2.day.atm, the tensile strength is 220 to 280MPa, and the elongation at break is 110 to 140%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410096453.2A CN118006118A (en) | 2024-01-24 | 2024-01-24 | Halogen-free flame-retardant biaxially oriented nylon film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410096453.2A CN118006118A (en) | 2024-01-24 | 2024-01-24 | Halogen-free flame-retardant biaxially oriented nylon film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN118006118A true CN118006118A (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410096453.2A Pending CN118006118A (en) | 2024-01-24 | 2024-01-24 | Halogen-free flame-retardant biaxially oriented nylon film and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02302467A (en) * | 1989-05-17 | 1990-12-14 | Teijin Ltd | Biaxially oriented polyamide film |
| US5357030A (en) * | 1992-06-03 | 1994-10-18 | Alliedsignal Inc. | Process for producing and polyamide compositions comprising lactamyl phosphites as chain extending agents |
| CN105153415A (en) * | 2015-07-22 | 2015-12-16 | 东华大学 | Flame-retardant nylon 66 copolymer material and preparation method therefor |
| CN105585710A (en) * | 2014-10-27 | 2016-05-18 | 辽宁银珠化纺集团有限公司 | Halogen-free copolymer-type flame-retarding polyamide 66 and preparation method thereof |
| CN112048061A (en) * | 2020-09-15 | 2020-12-08 | 东华大学 | Copolymerized flame-retardant polyamide and preparation method thereof |
| CN114605633A (en) * | 2022-04-07 | 2022-06-10 | 江门市德众泰尼龙有限公司 | Body flame-retardant nylon and preparation method and application thereof |
| CN115466384A (en) * | 2022-09-06 | 2022-12-13 | 四川大学 | Phosphorus-containing copolymerized flame-retardant nylon and preparation method and application thereof |
-
2024
- 2024-01-24 CN CN202410096453.2A patent/CN118006118A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02302467A (en) * | 1989-05-17 | 1990-12-14 | Teijin Ltd | Biaxially oriented polyamide film |
| US5357030A (en) * | 1992-06-03 | 1994-10-18 | Alliedsignal Inc. | Process for producing and polyamide compositions comprising lactamyl phosphites as chain extending agents |
| CN105585710A (en) * | 2014-10-27 | 2016-05-18 | 辽宁银珠化纺集团有限公司 | Halogen-free copolymer-type flame-retarding polyamide 66 and preparation method thereof |
| CN105153415A (en) * | 2015-07-22 | 2015-12-16 | 东华大学 | Flame-retardant nylon 66 copolymer material and preparation method therefor |
| CN112048061A (en) * | 2020-09-15 | 2020-12-08 | 东华大学 | Copolymerized flame-retardant polyamide and preparation method thereof |
| CN114605633A (en) * | 2022-04-07 | 2022-06-10 | 江门市德众泰尼龙有限公司 | Body flame-retardant nylon and preparation method and application thereof |
| CN115466384A (en) * | 2022-09-06 | 2022-12-13 | 四川大学 | Phosphorus-containing copolymerized flame-retardant nylon and preparation method and application thereof |
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