CN116693864A - Triazine charring agent containing phosphorus and metal element as well as preparation method and application thereof - Google Patents
Triazine charring agent containing phosphorus and metal element as well as preparation method and application thereof Download PDFInfo
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- CN116693864A CN116693864A CN202310748553.4A CN202310748553A CN116693864A CN 116693864 A CN116693864 A CN 116693864A CN 202310748553 A CN202310748553 A CN 202310748553A CN 116693864 A CN116693864 A CN 116693864A
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- Prior art keywords
- containing phosphorus
- polymer material
- agent containing
- metal elements
- triazine
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 121
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 104
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 96
- 239000011574 phosphorus Substances 0.000 title claims abstract description 96
- 239000002184 metal Substances 0.000 title claims description 32
- 238000002360 preparation method Methods 0.000 title abstract description 28
- 239000002861 polymer material Substances 0.000 claims abstract description 85
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000003063 flame retardant Substances 0.000 claims abstract description 63
- 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 claims abstract description 60
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims abstract description 39
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 34
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000779 smoke Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 21
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000013067 intermediate product Substances 0.000 claims abstract description 16
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 9
- 230000002378 acidificating effect Effects 0.000 claims abstract description 5
- 238000006266 etherification reaction Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 150000003839 salts Chemical class 0.000 claims description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 21
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 21
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 230000004580 weight loss Effects 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 4
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 claims description 3
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 claims description 2
- PZHIWRCQKBBTOW-UHFFFAOYSA-N 1-ethoxybutane Chemical compound CCCCOCC PZHIWRCQKBBTOW-UHFFFAOYSA-N 0.000 claims description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- XOBKSJJDNFUZPF-UHFFFAOYSA-N Methoxyethane Chemical compound CCOC XOBKSJJDNFUZPF-UHFFFAOYSA-N 0.000 claims description 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000010000 carbonizing Methods 0.000 abstract description 11
- 230000001629 suppression Effects 0.000 abstract description 6
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 15
- 238000001035 drying Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000000967 suction filtration Methods 0.000 description 9
- 238000005406 washing Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 102220040412 rs587778307 Human genes 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005580 one pot reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DAMJCWMGELCIMI-UHFFFAOYSA-N benzyl n-(2-oxopyrrolidin-3-yl)carbamate Chemical compound C=1C=CC=CC=1COC(=O)NC1CCNC1=O DAMJCWMGELCIMI-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001119 stannous chloride Substances 0.000 description 1
- 235000011150 stannous chloride Nutrition 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G79/00—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule
- C08G79/02—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule a linkage containing phosphorus
- C08G79/04—Phosphorus linked to oxygen or to oxygen and carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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 relates to a triazine charring agent containing phosphorus and metal elements, and a preparation method and application thereof, wherein the preparation method comprises the following steps: respectively reacting melamine and sodium hypophosphite with excessive formaldehyde to generate methylol melamine and polyhydroxy sodium hypophosphite, carrying out etherification reaction on the methylol melamine and the polyhydroxy sodium hypophosphite under an acidic condition to obtain an intermediate product, and replacing metal ions in the intermediate product with M to obtain the triazine carbonizing agent containing phosphorus and metal elements; the flame-retardant high polymer material is prepared by performing injection molding after the triazine charring agent containing phosphorus and metal elements is singly or together with other flame retardants and is melt-blended with the high polymer material. The method is simple, and the prepared triazine charring agent has good charring performance and excellent flame retardant and smoke suppression performance, and can be singly or compositely applied.
Description
Technical Field
The application belongs to the technical field of high polymer materials, and relates to a triazine charring agent containing phosphorus and metal elements, and a preparation method and application thereof.
Background
The P-N synergistic Intumescent Flame Retardant (IFR) is prepared by compounding a nitrogen flame retardant and a phosphorus flame retardant, and is a flame retardant method commonly used at present. When the material is heated, the flame retardant promotes the matrix to form a compact and expanded carbon layer structure, and the structure has the functions of heat insulation, oxygen insulation, smoke suppression and molten drop suppression, so that the combustibility of the material is reduced.
IFR is composed of three parts, an acid source, a carbon source and a gas source. Of these three components, the acid source is the largest, and is generally an inorganic acid or a compound which is decomposed by heat to produce an acidic substance, such as ammonium polyphosphate (APP) or the like; the carbon source is mainly a polyhydroxy compound with high carbon content, such as pentaerythritol and the like; the gas source is also referred to as a foaming source, and commonly used foaming sources include melamine or piperazine and the like.
In industrial application, the selection of a proper char-forming agent becomes a key point of application by comprehensively considering the influence of factors such as cost and the like. In addition to traditional pentaerythritol and its derivatives as char forming agents, a class of triazine-structured macromolecular char forming agents is gaining more and more attention. For example, chinese patent CN103333336A discloses a preparation method and application of macromolecular triazine flame retardant, which shows that the macromolecular triazine flame retardant can be used as a char forming agent and has good flame retardant effect.
However, most of the existing triazine char-forming agents are prepared by reacting cyanuric chloride with diamine, and the preparation method is difficult, generates a large amount of wastewater and pollutes the environment. Meanwhile, the triazine macromolecules tend to have strong smoke generating capability and cannot provide better protection for people in fire.
Disclosure of Invention
The application aims to solve the problems in the prior art and provides a triazine charring agent containing phosphorus and metal elements, and a preparation method and application thereof.
In order to achieve the above purpose, the application adopts the following technical scheme:
a triazine charring agent containing phosphorus and metal elements has the following molecular structural formula:
wherein M is K + 、Mg 2+ 、Ca 2+ 、Al 3+ 、Fe 3+ 、Fe 2+ 、Zn 2+ 、Sn 2+ 、Sn 4+ 、Ba 2+ 、Sb 3+ 、Ni 2+ Or Co 2+ The wavy line represents this structural extension.
One of the technical problems to be solved by the application is that the triazine charring agent in the prior art has strong smoke generating capability and can not provide better protection for people in fire disaster; the triazine carbonizing agent containing phosphorus and metal elements contains phosphorus and metal elements at the same time, the metal elements usually exist in the form of oxides after being combusted to form a smoke isolating layer similar to a barrier, the smoke isolating layer has a certain smoke inhibiting effect, and meanwhile, the metal oxide isolating layer can reduce the reaction activation energy of dehydration reaction of the phosphorus-containing part through the interface catalysis effect, so that the chemical activity of the dehydration reaction of the phosphorus-containing part is improved, and the dehydration effect of a phosphoric acid structure generated by decomposition of the phosphorus-containing part is used for promoting the carbonizing of a material matrix together, so that the smoke inhibiting performance is better. In addition, the metal ions in the triazine charring agent containing phosphorus and metal elements are grafted on the triazine charring agent in an ionic bond mode, and compared with the triazine charring agent and the metal ions which are directly compounded (namely, one component provides a triazine structure and the other component provides the metal ions), the triazine charring agent containing phosphorus and metal elements has better dispersibility and better catalytic charring performance.
As a preferable technical scheme:
as the triazine charring agent containing phosphorus and metal elements, the polymerization degree of the triazine charring agent containing phosphorus and metal elements is more than or equal to 10, the 1wt% thermal weight loss temperature is more than or equal to 250 ℃, and the water solubility is less than or equal to 0.3g/100mL of water.
The application also provides a method for preparing the triazine charring agent containing phosphorus and metal elements, which comprises the steps of respectively reacting melamine and sodium hypophosphite with excessive formaldehyde to generate methylol melamine and polyhydroxy sodium hypophosphite, carrying out etherification reaction on the methylol melamine and polyhydroxy sodium hypophosphite under an acidic condition to obtain an intermediate product, and replacing metal ions in the intermediate product with M to obtain the triazine charring agent containing phosphorus and metal elements; the molar ratio of melamine to formaldehyde to sodium hypophosphite is 1:1-10:1-6, the excessive system viscosity of formaldehyde is too high, self polymerization is easy, the too little formaldehyde can not be used for methylolation, the too much sodium hypophosphite can easily cause end capping, macromolecules can not be formed, the content of metal elements and phosphorus elements after replacement is less when the sodium hypophosphite is too little, and the flame-retardant and smoke-suppressing performance is poor.
The second technical problem to be solved by the application is that the preparation method of the triazine charring agent in the prior art is difficult, and generates a large amount of wastewater to pollute the environment; the application adopts a one-pot method, in an excessive formaldehyde solution, melamine and sodium hypophosphite react with formaldehyde respectively to generate methylol melamine and polyhydroxy hypophosphorous acid, then under an acidic condition, the two intermediates undergo etherification reaction, the phosphorus content of a product can be controlled by controlling the feeding ratio, and after the reaction is completed, metal element replacement is carried out to obtain the triazine carbonizing agent containing phosphorus and metal elements; the product of the application does not use cyanuric chloride as a raw material, and the reaction process adopts a one-pot method, so that no wastewater is generated.
As a preferable technical scheme:
the method comprises the following specific steps:
(1) Adding melamine, formaldehyde and sodium hypophosphite into a solvent, regulating the pH value of the system to 8-9, heating to 40-150 ℃ and reacting for 0.5-4 h; the chemical reaction equation is as follows:
(2) Keeping the temperature unchanged, regulating the pH value of the system to be less than 1.5, and reacting for 1-4 hours, wherein an intermediate product, namely methylolmelamine, is polymerized due to the fact that the pH value is too low, and etherification reaction is not carried out due to the fact that the pH value is too high, so that macromolecules cannot be obtained;
(3) The temperature and the pH value are kept unchanged, soluble metal salt is added into the system, the reaction is carried out for 0.5 to 4 hours, and the metal ion in the soluble metal salt is M;
(4) And (3) post-treatment (suction filtration, water washing and drying) to obtain the triazine charring agent containing phosphorus and metal elements.
In the above method, in the step (1), the solvent is water, acetonitrile, ethanol, ethylene glycol, isopropanol, N-butanol, cyclohexanol, benzyl alcohol, acetone, butanone, methyl isobutyl ketone, cyclohexanone, diethyl ether, methyl ethyl ether, ethyl butyl ether, ethylene glycol monomethyl ether, ethylene glycol dimethyl ether, ethylene glycol monoethyl ether, ethylene glycol diethyl ether, ethyl acetate, butyl acetate, N-dimethylformamide, N-dimethylacetamide or dimethylsulfoxide.
In the above-mentioned method, the molar addition amount of the soluble metal salt in the step (3) is 0.1 to 10 times the molar addition amount of the melamine in the step (1).
The application also provides application of the triazine charring agent containing phosphorus and metal elements, which is prepared by melt blending the triazine charring agent containing phosphorus and metal elements with a polymer material and then injection molding.
As a preferable technical scheme:
by the application, the mass addition amount of the triazine charring agent containing phosphorus and metal elements in the flame-retardant high polymer material is 0.2% -1%; when the flame-retardant polymer material burns, the carbon residue is increased by more than 35% compared with the polymer material, the smoke density is reduced by more than 35% compared with the polymer material, and the limiting oxygen index is higher than the polymer material by more than 3% (absolute value, non-relative quantity).
The application also provides an application of the triazine charring agent containing phosphorus and metal elements, which is prepared by melt blending the triazine charring agent containing phosphorus and metal elements and other flame retardants with a polymer material and then injection molding.
As a preferable technical scheme:
for the applications described above, the other flame retardant is ammonium polyphosphate; the mass ratio of the ammonium polyphosphate to the triazine charring agent containing phosphorus and metal elements is 0.5-6:1; the total mass addition amount of the ammonium polyphosphate and the triazine char-forming agent containing phosphorus and metal elements in the flame-retardant high polymer material is 15-30%; when the flame-retardant polymer material burns, the residual carbon content is increased by more than 50% compared with the polymer material, the smoke density is reduced by more than 35% compared with the polymer material, and the vertical burning grade reaches UL 94V-0.
The beneficial effects are that:
(1) The preparation method of the triazine charring agent containing phosphorus and metal elements has the advantages of wide and easily obtained sources of the related raw materials, low equipment requirement, simple and convenient operation, easy industrial production, no waste water generation and environmental protection.
(2) The application takes the intermediate product methylolmelamine as a growth core, forms a final macromolecular product through continuous ether bond condensation, and has the advantages of obvious precipitation resistance, migration resistance, good compatibility with a matrix and the like compared with small molecular triazine.
(3) The triazine charring agent containing phosphorus and metal elements is rich in P element, is a ternary integrated flame retardant, and can be used independently; meanwhile, the metal element contained in the application can play a role in catalysis promotion when the material burns, so that the generated carbon layer is more compact, most of smoke is prevented from escaping, and the smoke suppression effect is good.
(4) The triazine charring agent containing phosphorus and metal elements prepared by the application has ternary elements of an intumescent flame retardant system in molecules, has good synergistic interaction in the combustion or thermal cracking process, and can be used independently or compounded with other flame retardants.
(5) When the triazine charring agent containing phosphorus and metal elements is applied to the field of flame retardant materials, the triazine charring agent belongs to a halogen-free environment-friendly flame retardant system, is suitable for most polymer materials, and has very good smoke suppression effect due to contained metal ions.
Drawings
FIG. 1 is an infrared spectrum of a triazine char-forming agent containing phosphorus and metal elements of the present application;
FIG. 2 is a nuclear magnetic resonance phosphorus spectrum of a triazine char-forming agent containing phosphorus and metal elements of the present application;
FIG. 3 is a thermal weight loss spectrum of a triazine char-forming agent containing phosphorus and metal elements of the present application.
Detailed Description
The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
The test method of the correlation performance in each of the following examples is as follows:
degree of polymerization: gel permeation chromatography, tetrahydrofuran is a fixed mobile phase, the flow rate is 1ml/min, the flow error is less than 0.1ml/min, and the column temperature is 40 ℃.
Thermal weight loss temperature: the heating rate is 10 ℃/min, the nitrogen atmosphere and the nitrogen purging airflow is 30ml/min.
Water solubility: GB/T21845-2008.
Carbon residue amount: the mass residue at 800 ℃ was tested for thermal weight loss.
Limiting oxygen index: GB/T2406.1-2008.
Smoke density: GB/T8627-2007.
Vertical combustion grade: GB/T18380.12-2008.
The molecular structural formula of the triazine char-forming agent containing phosphorus and metal elements prepared in each of the following examples is as follows:
wherein M is K + 、Mg 2+ 、Ca 2+ 、Al 3+ 、Fe 3+ 、Fe 2+ 、Zn 2+ 、Sn 2+ 、Sn 4+ 、Ba 2+ 、Sb 3+ 、Ni 2+ Or Co 2+ 。
Example 1
A preparation method of a triazine charring agent containing phosphorus and metal elements comprises the following steps:
(1) Preparation of raw materials:
melamine;
formaldehyde;
sodium hypophosphite;
solvent: water;
soluble metal salts: aluminum sulfate;
(2) Adding melamine, formaldehyde and sodium hypophosphite into a solvent together in a molar ratio of 1:10:6, regulating the pH value of the system to 8, heating to 90 ℃ for reaction for 1h, and obtaining methylolmelamine and polyhydroxy sodium hypophosphite;
(3) Keeping the temperature unchanged, regulating the pH value of the system to 1, and reacting for 1h to obtain an intermediate product;
(4) Keeping the temperature and the pH value unchanged, adding soluble metal salt into the system, and reacting for 2 hours; wherein the molar addition of the soluble metal salt is 1 time of the molar addition of the melamine in the step (2);
(5) And obtaining the triazine charring agent containing phosphorus and metal elements after suction filtration, water washing and drying treatment.
The finally prepared triazine charring agent containing phosphorus and metal elements has the polymerization degree of 10, the 1wt% thermal weight loss temperature of 250 ℃ and the water solubility of 0.18g/100mL of water. The infrared spectrogram, nuclear magnetic resonance spectrogram and thermal weight loss spectrogram of the finally prepared triazine charring agent containing phosphorus and metal elements are shown in figures 1-3,infrared spectra showed the product at 3243cm -1 Is characterized by the absorption peaks of-OH and-NH stretching vibration, 1312 cm to 1617cm -1 Absorption peak with characteristic of triazine ring stretching vibration, 1156cm -1 Characteristic absorption peak for P=O stretching vibration, 1055cm -1 Is characterized by C-O-C telescopic vibration characteristic absorption peak, 2450-2700 cm -1 The absorption peak is a P-OH telescopic vibration characteristic absorption peak, and accords with an expected structure; 31 the P nuclear magnetic spectrum shows that the product has only one P signal peak, and the chemical shift is 42.2ppm. 31 P-NMR further confirmed the expected reaction of the product; the thermogravimetric curve shows that the 1wt% thermogravimetric temperature of the product is 250 ℃.
The triazine carbonizing agent containing phosphorus and metal elements prepared by the method is melt-blended with a high polymer material (K8003 of the Ministry of China petrochemical Co., ltd.) and injection molded to prepare a flame-retardant high polymer material; wherein the mass addition amount of the triazine charring agent containing phosphorus and metal elements in the flame-retardant high polymer material is 0.2 percent.
When the finally prepared flame-retardant high polymer material burns, the residual carbon content is increased by 70% compared with the high polymer material (K8003 of China petrochemical Co., ltd.), the smoke density is reduced by 50% compared with the high polymer material (K8003 of China petrochemical Co., ltd.), and the limiting oxygen index is 3% higher than the high polymer material (K8003 of China petrochemical Co., ltd.).
Comparative example 1
The preparation method of the flame-retardant polymer material is basically the same as that of the embodiment 1, and the difference is that: the char-forming agent used was the hyperbranched triazine char-forming agent prepared in example 1 of patent CN103333336 a.
When the finally prepared flame-retardant polymer material burns, the residual carbon content is increased by 35% compared with the polymer material (China petrochemical Co., ltd., K8003), the smoke density is reduced by 30% compared with the polymer material (China petrochemical Co., ltd., K8003), and the limiting oxygen index is the same as that of the polymer material (China petrochemical Co., ltd., K8003).
As can be seen by comparing the example 1 with the comparative example 1, the hyperbranched triazine char-forming agent of CN103333336A has better flame retardant effect when being singly applied, because the hyperbranched triazine char-forming agent does not contain flame retardant element phosphorus element, can not form a ternary flame retardant structure of acid source-carbon source-air source, can only be used as a carbon source and an acid source such as APP for compounding, and is a single char-forming agent.
Comparative example 2
A preparation method of a triazine charring agent containing phosphorus and metal elements comprises the following steps:
(1) Preparation of raw materials:
melamine;
formaldehyde;
sodium hypophosphite;
solvent: water;
aluminum-containing compound: alumina;
(2) Adding melamine, formaldehyde and sodium hypophosphite into a solvent together in a molar ratio of 1:10:6, regulating the pH value of the system to 8, heating to 90 ℃ for reaction for 1h, and obtaining methylolmelamine and polyhydroxy sodium hypophosphite;
(3) Keeping the temperature unchanged, regulating the pH value of the system to 1, and reacting for 1h to obtain an intermediate product;
(4) Keeping the temperature and the pH value unchanged, and reacting for 2 hours without adding other substances into the system;
(5) After suction filtration, water washing and drying treatment, uniformly mixing the product with an aluminum-containing compound to obtain a triazine carbonizing agent containing phosphorus and metal elements; the addition amount of the aluminum-containing compound in comparative example 2 satisfies: the amount of aluminum element added to the aluminum-containing compound in comparative example 2 was the same as that of the soluble metal salt in example 1.
The triazine carbonizing agent containing phosphorus and metal elements prepared by the method is melt-blended with a high polymer material (K8003 of the Ministry of China petrochemical Co., ltd.) and injection molded to prepare a flame-retardant high polymer material; wherein the mass addition amount of the triazine charring agent containing phosphorus and metal elements in the flame-retardant high polymer material is 0.2 percent.
When the finally prepared flame-retardant high polymer material burns, the residual carbon content is increased by 40% compared with the high polymer material (K8003 of China petrochemical Co., ltd.), the smoke density is reduced by 15% compared with the high polymer material (K8003 of China petrochemical Co., ltd.), and the limiting oxygen index is 1% higher than the high polymer material (K8003 of China petrochemical Co., ltd.).
As can be seen by comparing the embodiment 1 with the comparative example 2, the flame retardant effect of the application is better, particularly the oxygen index is improved more obviously, because the application is an integrated flame retardant char former, the char layer is compact and continuous after burning, and has better smoke and heat shielding effect, but, in contrast, if the alumina is added singly, the alumina is a rigid particle, and large particle residues exist in the char layer after burning, thus reducing the compactness and integrity of the char layer, and the limiting oxygen index is lower than that of the application.
Example 2
A preparation method of a triazine charring agent containing phosphorus and metal elements comprises the following steps:
(1) Preparation of raw materials:
melamine;
formaldehyde;
sodium hypophosphite;
solvent: acetonitrile;
soluble metal salts: nickel chloride;
(2) Adding melamine, formaldehyde and sodium hypophosphite into a solvent together in a molar ratio of 1:1:6, regulating the pH value of the system to 9, heating to 50 ℃ for reaction for 3 hours, and obtaining methylolmelamine and polyhydroxy sodium hypophosphite;
(3) Keeping the temperature unchanged, regulating the pH value of the system to 0.5, and reacting for 2 hours to obtain an intermediate product;
(4) The temperature and the pH value are kept unchanged, soluble metal salt is added into the system, and the reaction is carried out for 0.5h; wherein the molar addition of the soluble metal salt is 2 times the molar addition of melamine in step (2);
(5) And obtaining the triazine charring agent containing phosphorus and metal elements after suction filtration, water washing and drying treatment.
The finally prepared triazine charring agent containing phosphorus and metal elements has the polymerization degree of 11, the 1wt% thermal weight loss temperature of 255 ℃ and the water solubility of 0.2g/100mL of water.
The triazine charring agent containing phosphorus and metal elements prepared by the method is melt-blended with a high polymer material (PP T300 of China petrochemical Shanghai petrochemical Co., ltd.) and injection molded to prepare a flame-retardant high polymer material; wherein the mass addition amount of the triazine charring agent containing phosphorus and metal elements in the flame-retardant high polymer material is 1 percent.
When the finally prepared flame-retardant high polymer material burns, the residual carbon content is improved by 75% compared with the high polymer material (PP T300 of China petrochemical Co., ltd.), the smoke density is reduced by 35% compared with the high polymer material (PP T300 of China petrochemical Co., ltd.), and the limiting oxygen index is 5.5% higher than the high polymer material (PP T300 of China petrochemical Co., ltd.).
Example 3
A preparation method of a triazine charring agent containing phosphorus and metal elements comprises the following steps:
(1) Preparation of raw materials:
melamine;
formaldehyde;
sodium hypophosphite;
solvent: ethanol;
soluble metal salts: antimony trichloride;
(2) Adding melamine, formaldehyde and sodium hypophosphite into a solvent together in a molar ratio of 1:5:1, regulating the pH value of the system to 8, heating to 60 ℃ for reaction for 4 hours, and obtaining methylolmelamine and polyhydroxy sodium hypophosphite;
(3) Keeping the temperature unchanged, regulating the pH value of the system to 1, and reacting for 4 hours to obtain an intermediate product;
(4) The temperature and the pH value are kept unchanged, soluble metal salt is added into the system, and the reaction is carried out for 1h; wherein the molar addition of the soluble metal salt is 0.1 times the molar addition of melamine in step (2);
(5) And obtaining the triazine charring agent containing phosphorus and metal elements after suction filtration, water washing and drying treatment.
The finally prepared triazine charring agent containing phosphorus and metal elements has the polymerization degree of 13, the 1wt% thermal weight loss temperature of 260 ℃ and the water solubility of 0.21g/100mL of water.
The triazine charring agent containing phosphorus and metal elements prepared by the method is melt-blended with a high polymer material (T30S of Fujian Zhongjing petrochemical Co., ltd.) and injection molded to prepare a flame-retardant high polymer material; wherein the mass addition amount of the triazine charring agent containing phosphorus and metal elements in the flame-retardant high polymer material is 0.5 percent.
When the finally prepared flame-retardant high polymer material burns, the carbon residue is increased by 100% compared with the high polymer material (T30S of Fujian Zhongjing petrochemical Co., ltd.), the smoke density is reduced by 55% compared with the high polymer material (T30S of Fujian Zhongjing petrochemical Co., ltd.), and the limiting oxygen index is 7% higher than the high polymer material (T30S of Fujian Zhongjing petrochemical Co., ltd.).
Example 4
A preparation method of a triazine charring agent containing phosphorus and metal elements comprises the following steps:
(1) Preparation of raw materials:
melamine;
formaldehyde;
sodium hypophosphite;
solvent: ethylene glycol;
soluble metal salts: zinc chloride;
(2) Adding melamine, formaldehyde and sodium hypophosphite into a solvent together in a molar ratio of 1:5:5, regulating the pH value of the system to 8, heating to 150 ℃ for reaction for 2 hours, and obtaining methylolmelamine and polyhydroxy sodium hypophosphite;
(3) Keeping the temperature unchanged, regulating the pH value of the system to 0.8, and reacting for 3 hours to obtain an intermediate product;
(4) The temperature and the pH value are kept unchanged, soluble metal salt is added into the system, and the reaction is carried out for 1h; wherein the molar addition of the soluble metal salt is 10 times the molar addition of melamine in step (2);
(5) And obtaining the triazine charring agent containing phosphorus and metal elements after suction filtration, water washing and drying treatment.
The finally prepared triazine charring agent containing phosphorus and metal elements has the polymerization degree of 12, the 1wt% thermal weight loss temperature of 260 ℃ and the water solubility of 0.22g/100mL of water.
The triazine carbonizing agent containing phosphorus and metal elements prepared by the method and ammonium polyphosphate (SN-306 of Senno new material technology Co., ltd.) are mixed together with a polymer material (101F pure resin raw material of DuPont Co., U.S.) in a melting way and then injection molded to prepare the flame-retardant polymer material; wherein, the mass ratio of the ammonium polyphosphate to the triazine charring agent containing phosphorus and metal elements is 6:1, and the total mass addition amount is 15 percent.
When the finally prepared flame-retardant high polymer material burns, the carbon residue is increased by 50% compared with the high polymer material (the pure resin raw material of the DuPont company 101F in U.S.), the smoke density is reduced by 35% compared with the high polymer material (the pure resin raw material of the DuPont company 101F in U.S.), and the vertical burning grade reaches UL 94V-0.
Comparative example 3
The preparation method of the flame-retardant polymer material is basically the same as that of example 4, except that: the char-forming agent used was the hyperbranched triazine char-forming agent prepared in example 1 of patent CN103333336 a.
When the finally prepared flame-retardant high polymer material burns, the carbon residue is increased by 50% compared with the high polymer material (the pure resin raw material of the DuPont company 101F in U.S.), the smoke density is reduced by 15% compared with the high polymer material (the pure resin raw material of the DuPont company 101F in U.S.), and the vertical burning grade reaches UL 94V-2.
As can be seen by comparing the example 4 with the comparative example 3, the triazine charring agent containing phosphorus and metal elements has better compound flame retardant effect with APP, because compared with the hyperbranched triazine charring agent of the patent CN103333336A, the metal elements in the triazine charring agent containing phosphorus and metal elements can catalyze a matrix to generate a more compact and continuous carbon layer in the combustion process, thereby effectively blocking heat oxygen exchange, improving flame retardant effect and preventing molten drops from being generated, and meanwhile, the carbon layer also prevents most of smoke from escaping and has good smoke suppression effect.
Example 5
A preparation method of a triazine charring agent containing phosphorus and metal elements comprises the following steps:
(1) Preparation of raw materials:
melamine;
formaldehyde;
sodium hypophosphite;
solvent: isopropyl alcohol;
soluble metal salts: calcium nitrate;
(2) Adding melamine, formaldehyde and sodium hypophosphite into a solvent together in a molar ratio of 1:2:6, regulating the pH value of the system to 8, heating to 40 ℃ for reaction for 3 hours, and obtaining methylolmelamine and polyhydroxy sodium hypophosphite;
(3) Keeping the temperature unchanged, regulating the pH value of the system to 0.5, and reacting for 2 hours to obtain an intermediate product;
(4) Keeping the temperature and the pH value unchanged, adding soluble metal salt into the system, and reacting for 4 hours; wherein the molar addition of the soluble metal salt is 5 times the molar addition of melamine in step (2);
(5) And obtaining the triazine charring agent containing phosphorus and metal elements after suction filtration, water washing and drying treatment.
The finally prepared triazine charring agent containing phosphorus and metal elements has the polymerization degree of 11, the 1wt% thermal weight loss temperature of 258 ℃ and the water solubility of 0.22g/100mL of water.
The triazine carbonizing agent containing phosphorus and metal elements prepared by the method and ammonium polyphosphate (APP 101 of Hangzhou Jieers flame retardant chemical industry Co., ltd.) are mixed together with a polymer material (101L NC010 of DuPont U.S.A.) in a melting mode and then injection molded, so that a flame retardant polymer material is prepared; wherein, the mass ratio of the ammonium polyphosphate to the triazine charring agent containing phosphorus and metal elements is 3:1, and the total mass addition amount is 20 percent.
When the finally prepared flame-retardant polymer material burns, the carbon residue is increased by 60% compared with the polymer material (101 LNC010 of DuPont company, U.S.) and the smoke density is reduced by 40% compared with the polymer material (101L NC010 of DuPont company, U.S.) and the vertical burning grade reaches UL 94V-0.
Example 6
A preparation method of a triazine charring agent containing phosphorus and metal elements comprises the following steps:
(1) Preparation of raw materials:
melamine;
formaldehyde;
sodium hypophosphite;
solvent: n-butanol;
soluble metal salts: barium nitrate;
(2) Adding melamine, formaldehyde and sodium hypophosphite into a solvent together in a molar ratio of 1:1:1, regulating the pH value of the system to 8, heating to 110 ℃ for reaction for 2 hours, and obtaining methylolmelamine and polyhydroxy sodium hypophosphite;
(3) Keeping the temperature unchanged, regulating the pH value of the system to 0.5, and reacting for 3 hours to obtain an intermediate product;
(4) The temperature and the pH value are kept unchanged, soluble metal salt is added into the system, and the reaction is carried out for 0.5h; wherein the molar addition of the soluble metal salt is 0.5 times the molar addition of melamine in step (2);
(5) And obtaining the triazine charring agent containing phosphorus and metal elements after suction filtration, water washing and drying treatment.
The finally prepared triazine charring agent containing phosphorus and metal elements has the polymerization degree of 14, the 1wt% thermal weight loss temperature of 250 ℃ and the water solubility of 0.15g/100mL of water.
The triazine carbonizing agent containing phosphorus and metal elements prepared by the method and ammonium polyphosphate (APP II of Zaozhuang Lu Heng fine chemical Co., ltd.) are melt-blended and injection-molded together with a polymer material (K8003 of China petrochemical Co., ltd.) to prepare a flame-retardant polymer material; wherein, the mass ratio of the ammonium polyphosphate to the triazine charring agent containing phosphorus and metal elements is 4:1, and the total mass addition amount is 15 percent.
When the finally prepared flame-retardant high polymer material burns, the residual carbon quantity is improved by 90 percent compared with the high polymer material (K8003 of the national institute of petrochemical industry, inc.), the smoke density is reduced by 35 percent compared with the high polymer material (K8003 of the national institute of petrochemical industry, inc.), and the vertical burning grade reaches the UL 94V-0 grade.
Example 7
A preparation method of a triazine charring agent containing phosphorus and metal elements comprises the following steps:
(1) Preparation of raw materials:
melamine;
formaldehyde;
sodium hypophosphite;
solvent: cyclohexanol;
soluble metal salts: stannous chloride;
(2) Adding melamine, formaldehyde and sodium hypophosphite into a solvent together in a molar ratio of 1:10:1, regulating the pH value of the system to 8, and heating to 130 ℃ for reaction for 1.5 hours to obtain methylolmelamine and sodium polyhydroxy hypophosphite;
(3) Keeping the temperature unchanged, regulating the pH value of the system to 1.5, and reacting for 3 hours to obtain an intermediate product;
(4) The temperature and the pH value are kept unchanged, soluble metal salt is added into the system, and the reaction is carried out for 3 hours; wherein the molar addition of the soluble metal salt is 4 times the molar addition of melamine in step (2);
(5) And obtaining the triazine charring agent containing phosphorus and metal elements after suction filtration, water washing and drying treatment.
The finally prepared triazine charring agent containing phosphorus and metal elements has the polymerization degree of 15, the 1wt% thermal weight loss temperature of 255 ℃ and the water solubility of 0.3g/100mL of water.
The triazine carbonizing agent containing phosphorus and metal elements prepared by the method and ammonium polyphosphate (APP 101 of Hangzhou Jiels flame retardant chemical industry Co., ltd.) are melted and blended together with a polymer material (T30S of Fujian Zhongjing petrochemical Co., ltd.) and then injection molded to prepare a flame retardant polymer material; wherein, the mass ratio of the ammonium polyphosphate to the triazine charring agent containing phosphorus and metal elements is 0.5:1, and the total mass addition amount is 30 percent.
When the finally prepared flame-retardant polymer material burns, the residual carbon quantity is increased by 70% compared with the polymer material (T30S of Fujian Zhongjing petrochemical Co., ltd.), the smoke density is reduced by 50% compared with the polymer material (T30S of Fujian Zhongjing petrochemical Co., ltd.), and the vertical burning grade reaches UL 94V-0.
Claims (10)
1. A triazine charring agent containing phosphorus and metal elements is characterized by having the following molecular structural formula:
wherein M is K + 、Mg 2+ 、Ca 2+ 、Al 3+ 、Fe 3+ 、Fe 2+ 、Zn 2+ 、Sn 2+ 、Sn 4+ 、Ba 2+ 、Sb 3+ 、Ni 2+ Or Co 2+ 。
2. The triazine charring agent containing phosphorus and metal elements according to claim 1, wherein the polymerization degree of the triazine charring agent containing phosphorus and metal elements is not less than 10, the 1wt% thermal weight loss temperature is not less than 250 ℃, and the water solubility is not more than 0.3g/100mL of water.
3. The method for preparing the triazine charring agent containing phosphorus and metal elements according to claim 1 or 2, which is characterized in that melamine and sodium hypophosphite are respectively reacted with excessive formaldehyde to generate methylol melamine and polyhydroxy sodium hypophosphite, the methylol melamine and the polyhydroxy sodium hypophosphite are subjected to etherification reaction under an acidic condition to obtain an intermediate product, and metal ions in the intermediate product are replaced by M to obtain the triazine charring agent containing phosphorus and metal elements; wherein the mole ratio of melamine, formaldehyde and sodium hypophosphite is 1:1-10:1-6.
4. A method according to claim 3, characterized by the specific steps of:
(1) Adding melamine, formaldehyde and sodium hypophosphite into a solvent, regulating the pH value of the system to 8-9, heating to 40-150 ℃ and reacting for 0.5-4 h;
(2) Keeping the temperature unchanged, adjusting the pH value of the system to be less than 1.5, and reacting for 1-4 h;
(3) The temperature and the pH value are kept unchanged, soluble metal salt is added into the system, the reaction is carried out for 0.5 to 4 hours, and the metal ion in the soluble metal salt is M;
(4) And (3) post-treating to obtain the triazine charring agent containing phosphorus and metal elements.
5. The method according to claim 4, wherein in the step (1), the solvent is water, acetonitrile, ethanol, ethylene glycol, isopropanol, N-butanol, cyclohexanol, benzyl alcohol, acetone, butanone, methyl isobutyl ketone, cyclohexanone, diethyl ether, methyl ethyl ether, ethyl butyl ether, ethylene glycol monomethyl ether, ethylene glycol dimethyl ether, ethylene glycol monoethyl ether, ethylene glycol diethyl ether, ethyl acetate, butyl acetate, N-dimethylformamide, N-dimethylacetamide or dimethylsulfoxide.
6. The process according to claim 4, wherein the molar addition of the soluble metal salt in step (3) is 0.1 to 10 times the molar addition of melamine in step (1).
7. The use of a triazine char-forming agent containing phosphorus and metal elements as claimed in claim 1 or 2, wherein the triazine char-forming agent containing phosphorus and metal elements is melt blended with a polymer material and injection molded to obtain a flame-retardant polymer material.
8. The application of claim 7, wherein the mass addition amount of the triazine char-forming agent containing phosphorus and metal elements in the flame-retardant high polymer material is 0.2% -1%; when the flame-retardant polymer material burns, the residual carbon content is increased by more than 35% compared with the polymer material, the smoke density is reduced by more than 35% compared with the polymer material, and the limiting oxygen index is higher than the polymer material by more than 3%.
9. The use of a triazine char former containing phosphorus and metal elements as claimed in claim 1 or 2, wherein the triazine char former containing phosphorus and metal elements and other flame retardants are melt blended with a polymer material and injection molded to obtain the flame retardant polymer material.
10. Use according to claim 9, wherein the other flame retardant is ammonium polyphosphate; the mass ratio of the ammonium polyphosphate to the triazine charring agent containing phosphorus and metal elements is 0.5-6:1; the total mass addition amount of the ammonium polyphosphate and the triazine char-forming agent containing phosphorus and metal elements in the flame-retardant high polymer material is 15-30%; when the flame-retardant polymer material burns, the residual carbon content is increased by more than 50% compared with the polymer material, the smoke density is reduced by more than 35% compared with the polymer material, and the vertical burning grade reaches UL 94V-0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310748553.4A CN116693864A (en) | 2023-06-25 | 2023-06-25 | Triazine charring agent containing phosphorus and metal element as well as preparation method and application thereof |
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| CN202310748553.4A CN116693864A (en) | 2023-06-25 | 2023-06-25 | Triazine charring agent containing phosphorus and metal element as well as preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN117069948A (en) * | 2023-10-17 | 2023-11-17 | 四川省成都市福来隆科技有限公司 | Preparation method of melamine polyphosphate containing aldehyde functional group |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117069948A (en) * | 2023-10-17 | 2023-11-17 | 四川省成都市福来隆科技有限公司 | Preparation method of melamine polyphosphate containing aldehyde functional group |
| CN117069948B (en) * | 2023-10-17 | 2024-01-02 | 四川省成都市福来隆科技有限公司 | Preparation method of melamine polyphosphate containing aldehyde functional group |
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