Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is an SEM diagram of a phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum dis- ulfide hybrid material obtained in Example 1;
FIG. 2 is a TEM diagram of the phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum dis- ulfide hybrid material obtained in Example 1;
FIG. 3 is a thermogravimetric (TG) diagram of a poly- acrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1; 25
FIG. 4 is a diagram showing the heat release rate of the polyacrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1;
FIG. 5 is a diagram showing the total heat release amount of the polyacrylonitrile fiber and flame retardant polyacry- 30 lonitrile fiber obtained in Example 1; …
FIG. 6 is a diagram showing the limit oxygen index of the polyacrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material, comprising the following components by weight: 1-2 parts of molybdenum disulfide, 1-1.5 parts of zinc salt, 5-8 parts of a nitrogen-containing compound and 5-10 parts of a phosphorus-containing compound.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the phosphorus-containing compound comprises one or more of phytic acid, 2-phosphonobutane-1,2,4-tricarboxylic acid, amino trimeth-ylene phosphonic acid or ethylenediamine tetramethylene phosphonic acid.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the zinc salt comprises one or more of zinc acetate, zinc chloride or zinc nitrate.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the nitrogen-containing com-pound comprises one or more of polyethyleneimine, mela-mine, p-phenylenediamine, ethylenediamine or thiourea.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein a preparation method of the phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material comprises: preparing the components according to parts by weight and mixing molybdenum disulfide nanosheets, the zinc salt, the nitrogen containing compound and the phosphorus-contain-ing compound in an aqueous solution for a complete reac-tion to obtain the phosphorus-nitrogen-zinc two-dimen-sional supra molecular coated molybdenum disulfide hybrid material.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the phosphorus-containing compound is one or more of phytic acid, 2-phosphonobu-tane-1,2,4-tricarboxylic acid, amino trimethylene phospho-nic acid or ethylenediamine tetramethylene phosphonic acid; the zinc salt is one or more of zinc acetate, zinc chloride or zinc nitrate; and the nitrogen-containing compound B₂ is one or more of polyethyleneimine, melamine, p-phe-nylenediamine, ethylenediamine or thiourea.
A flame retardant polyacrylonitrile fiber with compo-nents containing the phosphorus-nitrogen-zinc two-dimen-sional supra molecular coated molybdenum disulfide hybrid material according to claim 1.
The flame retardant polyacrylonitrile fiber according to claim 8, wherein a preparation method of the flame retardant polyacrylonitrile fiber comprises adding the phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1 into a polyacrylonitrile spinning solution and then carrying out wet spinning.
Embodiments described in the patent, grouped by the materials and process steps they use.
6 materials2 process steps
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant by dissolving melamine (0.5 g) and zinc acetate (0.1 g) in deionized water, adding MoS₂ nanosheets (0.1 g), dispersing ultrasonically for 2 hours, then adding phytic acid (0.5 g) dropwise and stirring at 30°C for 4 hours, followed by centrifugal cleaning and vacuum drying at 60°C. The hybrid material was then incorporated (0.06 g) into polyacrylonitrile/DMF spinning solution (3 g PAN in 15 g DMF), dissolved at 80°C for 8 h, defoamed, and wet-spun to yield flame retardant PAN fiber. SEM/TEM showed rough surface with block-like loads and sandwich structure on MoS₂ nanosheets.
6 materials2 process steps
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant with higher amounts: melamine (0.8 g) and zinc acetate (0.15 g) dissolved in 200 mL deionized water, MoS₂ nanosheets (0.2 g) added and dispersed ultrasonically for 2 hours, phytic acid (1 g) added dropwise and stirred at 30°C for 4 hours. Centrifugal cleaning and vacuum drying at 60°C. Flame retardant PAN fiber prepared with reference to Example 1.
4 materials1 process step
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant at elevated temperature: melamine (0.5 g) and zinc acetate (0.1 g) dissolved in 200 mL deionized water, MoS₂ nanosheets (0.1 g) added and dispersed ultrasonically for 2 hours, phytic acid (0.5 g) added dropwise and stirred at 60°C for 4 hours. Centrifugal cleaning and vacuum drying at 60°C.
Layer stacks claimed or described, ordered top of device to substrate.
flame retardant polyacrylonitrile fiber
Materials described outside the worked examples.
zinc salt
nitrogen-containing compound
phosphorus-containing compound
2-phosphonobutane-1,2,4-tricarboxylic acid
amino trimethylene phosphonic acid
ethylenediamine tetramethylene phosphonic acid
zinc chloride
ZnCl₂
zinc nitrate
Zn(NO₃)2
polyethyleneimine
p-phenylenediamine
C₆H₈N₂
ethylenediamine
C₂H₈N₂
thiourea
CH₄N₂S
N,N-dimethylformamide
C₃H₇NO
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
maximum heat release rate at 2 wt% hybrid material loading | ≤ 1 W/g | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
residual carbon amount at 2 wt% hybrid material loading | ≥57 % | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
LOI at 2 wt% hybrid material loading (noncombustible grade) | >27 | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
Pressure | 1–2 pa | — |
Pressure | 1–1.5 pa | — |
Pressure | 5–8 pa | — |
Pressure | 5–10 pa | — |
Temperature | 10–60 °C | — |
Duration | 2–8 hours | — |
Patents and literature cited by this patent (applicant and examiner references).
Cited patents · 4
Cited non-patent literature · 1
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is an SEM diagram of a phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum dis- ulfide hybrid material obtained in Example 1;
FIG. 2 is a TEM diagram of the phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum dis- ulfide hybrid material obtained in Example 1;
FIG. 3 is a thermogravimetric (TG) diagram of a poly- acrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1; 25
FIG. 4 is a diagram showing the heat release rate of the polyacrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1;
FIG. 5 is a diagram showing the total heat release amount of the polyacrylonitrile fiber and flame retardant polyacry- 30 lonitrile fiber obtained in Example 1; …
FIG. 6 is a diagram showing the limit oxygen index of the polyacrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material, comprising the following components by weight: 1-2 parts of molybdenum disulfide, 1-1.5 parts of zinc salt, 5-8 parts of a nitrogen-containing compound and 5-10 parts of a phosphorus-containing compound.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the phosphorus-containing compound comprises one or more of phytic acid, 2-phosphonobutane-1,2,4-tricarboxylic acid, amino trimeth-ylene phosphonic acid or ethylenediamine tetramethylene phosphonic acid.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the zinc salt comprises one or more of zinc acetate, zinc chloride or zinc nitrate.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the nitrogen-containing com-pound comprises one or more of polyethyleneimine, mela-mine, p-phenylenediamine, ethylenediamine or thiourea.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein a preparation method of the phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material comprises: preparing the components according to parts by weight and mixing molybdenum disulfide nanosheets, the zinc salt, the nitrogen containing compound and the phosphorus-contain-ing compound in an aqueous solution for a complete reac-tion to obtain the phosphorus-nitrogen-zinc two-dimen-sional supra molecular coated molybdenum disulfide hybrid material.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the phosphorus-containing compound is one or more of phytic acid, 2-phosphonobu-tane-1,2,4-tricarboxylic acid, amino trimethylene phospho-nic acid or ethylenediamine tetramethylene phosphonic acid; the zinc salt is one or more of zinc acetate, zinc chloride or zinc nitrate; and the nitrogen-containing compound B₂ is one or more of polyethyleneimine, melamine, p-phe-nylenediamine, ethylenediamine or thiourea.
A flame retardant polyacrylonitrile fiber with compo-nents containing the phosphorus-nitrogen-zinc two-dimen-sional supra molecular coated molybdenum disulfide hybrid material according to claim 1.
The flame retardant polyacrylonitrile fiber according to claim 8, wherein a preparation method of the flame retardant polyacrylonitrile fiber comprises adding the phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1 into a polyacrylonitrile spinning solution and then carrying out wet spinning.
Embodiments described in the patent, grouped by the materials and process steps they use.
6 materials2 process steps
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant by dissolving melamine (0.5 g) and zinc acetate (0.1 g) in deionized water, adding MoS₂ nanosheets (0.1 g), dispersing ultrasonically for 2 hours, then adding phytic acid (0.5 g) dropwise and stirring at 30°C for 4 hours, followed by centrifugal cleaning and vacuum drying at 60°C. The hybrid material was then incorporated (0.06 g) into polyacrylonitrile/DMF spinning solution (3 g PAN in 15 g DMF), dissolved at 80°C for 8 h, defoamed, and wet-spun to yield flame retardant PAN fiber. SEM/TEM showed rough surface with block-like loads and sandwich structure on MoS₂ nanosheets.
6 materials2 process steps
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant with higher amounts: melamine (0.8 g) and zinc acetate (0.15 g) dissolved in 200 mL deionized water, MoS₂ nanosheets (0.2 g) added and dispersed ultrasonically for 2 hours, phytic acid (1 g) added dropwise and stirred at 30°C for 4 hours. Centrifugal cleaning and vacuum drying at 60°C. Flame retardant PAN fiber prepared with reference to Example 1.
4 materials1 process step
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant at elevated temperature: melamine (0.5 g) and zinc acetate (0.1 g) dissolved in 200 mL deionized water, MoS₂ nanosheets (0.1 g) added and dispersed ultrasonically for 2 hours, phytic acid (0.5 g) added dropwise and stirred at 60°C for 4 hours. Centrifugal cleaning and vacuum drying at 60°C.
Layer stacks claimed or described, ordered top of device to substrate.
flame retardant polyacrylonitrile fiber
Materials described outside the worked examples.
zinc salt
nitrogen-containing compound
phosphorus-containing compound
2-phosphonobutane-1,2,4-tricarboxylic acid
amino trimethylene phosphonic acid
ethylenediamine tetramethylene phosphonic acid
zinc chloride
ZnCl₂
zinc nitrate
Zn(NO₃)2
polyethyleneimine
p-phenylenediamine
C₆H₈N₂
ethylenediamine
C₂H₈N₂
thiourea
CH₄N₂S
N,N-dimethylformamide
C₃H₇NO
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
maximum heat release rate at 2 wt% hybrid material loading | ≤ 1 W/g | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
residual carbon amount at 2 wt% hybrid material loading | ≥57 % | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
LOI at 2 wt% hybrid material loading (noncombustible grade) | >27 | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
Pressure | 1–2 pa | — |
Pressure | 1–1.5 pa | — |
Pressure | 5–8 pa | — |
Pressure | 5–10 pa | — |
Temperature | 10–60 °C | — |
Duration | 2–8 hours | — |
Patents and literature cited by this patent (applicant and examiner references).
Cited patents · 4
Cited non-patent literature · 1
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is an SEM diagram of a phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum dis- ulfide hybrid material obtained in Example 1;
FIG. 2 is a TEM diagram of the phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum dis- ulfide hybrid material obtained in Example 1;
FIG. 3 is a thermogravimetric (TG) diagram of a poly- acrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1; 25
FIG. 4 is a diagram showing the heat release rate of the polyacrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1;
FIG. 5 is a diagram showing the total heat release amount of the polyacrylonitrile fiber and flame retardant polyacry- 30 lonitrile fiber obtained in Example 1; …
FIG. 6 is a diagram showing the limit oxygen index of the polyacrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material, comprising the following components by weight: 1-2 parts of molybdenum disulfide, 1-1.5 parts of zinc salt, 5-8 parts of a nitrogen-containing compound and 5-10 parts of a phosphorus-containing compound.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the phosphorus-containing compound comprises one or more of phytic acid, 2-phosphonobutane-1,2,4-tricarboxylic acid, amino trimeth-ylene phosphonic acid or ethylenediamine tetramethylene phosphonic acid.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the zinc salt comprises one or more of zinc acetate, zinc chloride or zinc nitrate.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the nitrogen-containing com-pound comprises one or more of polyethyleneimine, mela-mine, p-phenylenediamine, ethylenediamine or thiourea.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein a preparation method of the phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material comprises: preparing the components according to parts by weight and mixing molybdenum disulfide nanosheets, the zinc salt, the nitrogen containing compound and the phosphorus-contain-ing compound in an aqueous solution for a complete reac-tion to obtain the phosphorus-nitrogen-zinc two-dimen-sional supra molecular coated molybdenum disulfide hybrid material.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the phosphorus-containing compound is one or more of phytic acid, 2-phosphonobu-tane-1,2,4-tricarboxylic acid, amino trimethylene phospho-nic acid or ethylenediamine tetramethylene phosphonic acid; the zinc salt is one or more of zinc acetate, zinc chloride or zinc nitrate; and the nitrogen-containing compound B₂ is one or more of polyethyleneimine, melamine, p-phe-nylenediamine, ethylenediamine or thiourea.
A flame retardant polyacrylonitrile fiber with compo-nents containing the phosphorus-nitrogen-zinc two-dimen-sional supra molecular coated molybdenum disulfide hybrid material according to claim 1.
The flame retardant polyacrylonitrile fiber according to claim 8, wherein a preparation method of the flame retardant polyacrylonitrile fiber comprises adding the phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1 into a polyacrylonitrile spinning solution and then carrying out wet spinning.
Embodiments described in the patent, grouped by the materials and process steps they use.
6 materials2 process steps
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant by dissolving melamine (0.5 g) and zinc acetate (0.1 g) in deionized water, adding MoS₂ nanosheets (0.1 g), dispersing ultrasonically for 2 hours, then adding phytic acid (0.5 g) dropwise and stirring at 30°C for 4 hours, followed by centrifugal cleaning and vacuum drying at 60°C. The hybrid material was then incorporated (0.06 g) into polyacrylonitrile/DMF spinning solution (3 g PAN in 15 g DMF), dissolved at 80°C for 8 h, defoamed, and wet-spun to yield flame retardant PAN fiber. SEM/TEM showed rough surface with block-like loads and sandwich structure on MoS₂ nanosheets.
6 materials2 process steps
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant with higher amounts: melamine (0.8 g) and zinc acetate (0.15 g) dissolved in 200 mL deionized water, MoS₂ nanosheets (0.2 g) added and dispersed ultrasonically for 2 hours, phytic acid (1 g) added dropwise and stirred at 30°C for 4 hours. Centrifugal cleaning and vacuum drying at 60°C. Flame retardant PAN fiber prepared with reference to Example 1.
4 materials1 process step
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant at elevated temperature: melamine (0.5 g) and zinc acetate (0.1 g) dissolved in 200 mL deionized water, MoS₂ nanosheets (0.1 g) added and dispersed ultrasonically for 2 hours, phytic acid (0.5 g) added dropwise and stirred at 60°C for 4 hours. Centrifugal cleaning and vacuum drying at 60°C.
Layer stacks claimed or described, ordered top of device to substrate.
flame retardant polyacrylonitrile fiber
Materials described outside the worked examples.
zinc salt
nitrogen-containing compound
phosphorus-containing compound
2-phosphonobutane-1,2,4-tricarboxylic acid
amino trimethylene phosphonic acid
ethylenediamine tetramethylene phosphonic acid
zinc chloride
ZnCl₂
zinc nitrate
Zn(NO₃)2
polyethyleneimine
p-phenylenediamine
C₆H₈N₂
ethylenediamine
C₂H₈N₂
thiourea
CH₄N₂S
N,N-dimethylformamide
C₃H₇NO
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
maximum heat release rate at 2 wt% hybrid material loading | ≤ 1 W/g | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
residual carbon amount at 2 wt% hybrid material loading | ≥57 % | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
LOI at 2 wt% hybrid material loading (noncombustible grade) | >27 | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
Pressure | 1–2 pa | — |
Pressure | 1–1.5 pa | — |
Pressure | 5–8 pa | — |
Pressure | 5–10 pa | — |
Temperature | 10–60 °C | — |
Duration | 2–8 hours | — |
Patents and literature cited by this patent (applicant and examiner references).
Cited patents · 4
Cited non-patent literature · 1
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is an SEM diagram of a phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum dis- ulfide hybrid material obtained in Example 1;
FIG. 2 is a TEM diagram of the phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum dis- ulfide hybrid material obtained in Example 1;
FIG. 3 is a thermogravimetric (TG) diagram of a poly- acrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1; 25
FIG. 4 is a diagram showing the heat release rate of the polyacrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1;
FIG. 5 is a diagram showing the total heat release amount of the polyacrylonitrile fiber and flame retardant polyacry- 30 lonitrile fiber obtained in Example 1; …
FIG. 6 is a diagram showing the limit oxygen index of the polyacrylonitrile fiber and flame retardant polyacrylonitrile fiber obtained in Example 1.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material, comprising the following components by weight: 1-2 parts of molybdenum disulfide, 1-1.5 parts of zinc salt, 5-8 parts of a nitrogen-containing compound and 5-10 parts of a phosphorus-containing compound.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the phosphorus-containing compound comprises one or more of phytic acid, 2-phosphonobutane-1,2,4-tricarboxylic acid, amino trimeth-ylene phosphonic acid or ethylenediamine tetramethylene phosphonic acid.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the zinc salt comprises one or more of zinc acetate, zinc chloride or zinc nitrate.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the nitrogen-containing com-pound comprises one or more of polyethyleneimine, mela-mine, p-phenylenediamine, ethylenediamine or thiourea.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein a preparation method of the phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material comprises: preparing the components according to parts by weight and mixing molybdenum disulfide nanosheets, the zinc salt, the nitrogen containing compound and the phosphorus-contain-ing compound in an aqueous solution for a complete reac-tion to obtain the phosphorus-nitrogen-zinc two-dimen-sional supra molecular coated molybdenum disulfide hybrid material.
The phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1, wherein the phosphorus-containing compound is one or more of phytic acid, 2-phosphonobu-tane-1,2,4-tricarboxylic acid, amino trimethylene phospho-nic acid or ethylenediamine tetramethylene phosphonic acid; the zinc salt is one or more of zinc acetate, zinc chloride or zinc nitrate; and the nitrogen-containing compound B₂ is one or more of polyethyleneimine, melamine, p-phe-nylenediamine, ethylenediamine or thiourea.
A flame retardant polyacrylonitrile fiber with compo-nents containing the phosphorus-nitrogen-zinc two-dimen-sional supra molecular coated molybdenum disulfide hybrid material according to claim 1.
The flame retardant polyacrylonitrile fiber according to claim 8, wherein a preparation method of the flame retardant polyacrylonitrile fiber comprises adding the phosphorus-nitrogen-zinc two-dimensional supra molecular coated molybdenum disulfide hybrid material according to claim 1 into a polyacrylonitrile spinning solution and then carrying out wet spinning.
Embodiments described in the patent, grouped by the materials and process steps they use.
6 materials2 process steps
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant by dissolving melamine (0.5 g) and zinc acetate (0.1 g) in deionized water, adding MoS₂ nanosheets (0.1 g), dispersing ultrasonically for 2 hours, then adding phytic acid (0.5 g) dropwise and stirring at 30°C for 4 hours, followed by centrifugal cleaning and vacuum drying at 60°C. The hybrid material was then incorporated (0.06 g) into polyacrylonitrile/DMF spinning solution (3 g PAN in 15 g DMF), dissolved at 80°C for 8 h, defoamed, and wet-spun to yield flame retardant PAN fiber. SEM/TEM showed rough surface with block-like loads and sandwich structure on MoS₂ nanosheets.
6 materials2 process steps
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant with higher amounts: melamine (0.8 g) and zinc acetate (0.15 g) dissolved in 200 mL deionized water, MoS₂ nanosheets (0.2 g) added and dispersed ultrasonically for 2 hours, phytic acid (1 g) added dropwise and stirred at 30°C for 4 hours. Centrifugal cleaning and vacuum drying at 60°C. Flame retardant PAN fiber prepared with reference to Example 1.
4 materials1 process step
Preparation of phosphorus-nitrogen-zinc two-dimensional supramolecular coated MoS₂ hybrid flame retardant at elevated temperature: melamine (0.5 g) and zinc acetate (0.1 g) dissolved in 200 mL deionized water, MoS₂ nanosheets (0.1 g) added and dispersed ultrasonically for 2 hours, phytic acid (0.5 g) added dropwise and stirred at 60°C for 4 hours. Centrifugal cleaning and vacuum drying at 60°C.
Layer stacks claimed or described, ordered top of device to substrate.
flame retardant polyacrylonitrile fiber
Materials described outside the worked examples.
zinc salt
nitrogen-containing compound
phosphorus-containing compound
2-phosphonobutane-1,2,4-tricarboxylic acid
amino trimethylene phosphonic acid
ethylenediamine tetramethylene phosphonic acid
zinc chloride
ZnCl₂
zinc nitrate
Zn(NO₃)2
polyethyleneimine
p-phenylenediamine
C₆H₈N₂
ethylenediamine
C₂H₈N₂
thiourea
CH₄N₂S
N,N-dimethylformamide
C₃H₇NO
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
maximum heat release rate at 2 wt% hybrid material loading | ≤ 1 W/g | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
residual carbon amount at 2 wt% hybrid material loading | ≥57 % | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
LOI at 2 wt% hybrid material loading (noncombustible grade) | >27 | polyacrylonitrilephosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid material |
Pressure | 1–2 pa | — |
Pressure | 1–1.5 pa | — |
Pressure | 5–8 pa | — |
Pressure | 5–10 pa | — |
Temperature | 10–60 °C | — |
Duration | 2–8 hours | — |
Patents and literature cited by this patent (applicant and examiner references).
Cited patents · 4
Cited non-patent literature · 1
