CN110092944A - The preparation method and applications of diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO - Google Patents

The preparation method and applications of diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO Download PDF

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Publication number
CN110092944A
CN110092944A CN201910369146.6A CN201910369146A CN110092944A CN 110092944 A CN110092944 A CN 110092944A CN 201910369146 A CN201910369146 A CN 201910369146A CN 110092944 A CN110092944 A CN 110092944A
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dps
diphenyl sulphone
flame retardant
nitrogen phosphorus
dopo
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李德江
张祖源
汪磊
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6564Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
    • C07F9/6571Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms
    • C07F9/657163Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms the ring phosphorus atom being bound to at least one carbon atom
    • C07F9/657172Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and oxygen atoms as the only ring hetero atoms the ring phosphorus atom being bound to at least one carbon atom the ring phosphorus atom and one oxygen atom being part of a (thio)phosphinic acid ester: (X = O, S)
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/49Phosphorus-containing compounds
    • C08K5/5399Phosphorus bound to nitrogen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Fireproofing Substances (AREA)

Abstract

The invention belongs to flame retardance of polymer fields, and in particular to the preparation method and applications of the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO.DOPO and 3,3 ', 4,4 '-tetramino diphenyl sulphone (DPS)s occur Atherton-Todd reaction and generate the phosphorus nitrogen sulphur synergistic fire retardant containing DOPO, diphenyl sulphone (DPS) structural unit.Applied to the macromolecules resin system such as polyurethane and ABS, with good with compatibility with polymer, storage stability is excellent, three kinds of phosphorous, nitrogen, sulphur elements simultaneously, has the effect of cooperative flame retardant in combustion, carbon yield is high, and when phosphorus content is 0.22 wt.% in resin system, vertical combustion grade reaches UL-94V-0 grades.Its cost of material is reasonable, and additive amount is few, and preparation process environmental protection is easy, easy to industrialized production.

Description

The preparation method and applications of diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO
Technical field
The invention belongs to flame retardance of polymer fields, and in particular to sulphur-nitrogen-phosphorus containing double DOPO, diphenyl sulfone structural unit The preparation method of ternary synergistic flame retardant, and it is applied to the flame-retardant modified of the macromolecule resins such as polyurethane, ABS.
Background technique
High polymer material is widely used in each department of the national economy such as industry, agricultural, military affairs, but most of high Polymers belongs to petroleum base combustible material, and polarity oxygen index (OI) is lower than 21, and heat release rate is high when burning, and calorific value is big, flame propagation speed Degree is fast, is not easy to extinguish, and generally can also produce thick smoke and toxic gas, grave danger caused by the security of the lives and property of people. There are the secondary hazards such as thickness, the releasing of toxic or corrosive gas when traditional halogen fire proofing burns, to personal safety structure At seriously threatening.Attention with the development and people of flame-retarded technology to environmental protection and personal safety, Halogen, low cigarette, Less toxic, high-fire resistance environmental protection fire retarding agent has become research hotspot.Chinese patent CN 101278001A is using phosphorous acid and sub- phosphine Fire retardant of the ester derivant of the phosphorous oxyacid of acid as polyurethane resin, when additive amount reaches 10wt.% or so, poly- ammonia For the vertical combustion grade of ester resin up to UL-94V-0 grades, flame retardant property is suitable with DOPO.However, without rigidity in its molecular structure Ring causes its thermal stability and chemical stability to decline, and synthesis technology is complicated, and industrialized production is difficult.For ABS fire retardant System, Chinese patent CN 104277410A report the mixing flame-retardant system of a kind of bromide and antimony oxide, although ABS hangs down Straight combustion rating reaches UL-94V-0 grades, but amount of flame-retardant agent reaches 12wt.% or more, and halogen and heavy metal form, and cause Serious environmental pollution.
Derivative containing DOPO is fire-retardant since its thermal stability and chemical stability are high as a kind of novel flame redundant material Performance is significant, and Halogen, it is smokeless, environmentally friendly, not easy to migrate, carbon yield is high the features such as, be macromolecule resin halogen-free flameproof in recent years Research hotspot.At this stage, phosphorus-hydrogen bond active in DOPO molecular structure, is mainly prepared by nucleophilic displacement of fluorine mode and is contained The fire retardant of DOPO structural unit.However, facile hydrolysis containing phosphorus series compound generates the toxic gases such as hydrogen phosphide, therefore actually answering There is certain limitation in.Therefore, how to coordinate low phosphorus content and excellent flame retardancy, become technical bottleneck at this stage.In 103421212 A of state patent CN introduces hydroxyl in DOPO structure, and cured reaction-type flame-retarding can be participated in by being prepared for one kind Agent, when epoxy resin vertical combustion grade reaches UL-94V-0 grades, effective phosphorus content is still higher than 1.8wt.%;Chinese patent CN 103865101 A introduce aromatic amine in DOPO, phosphorus nitrogen synergistic based flame retardant at preparation, although available phosphorus content is reduced to 0.75wt.%, but its synthesis technology complexity, purification difficult, it is difficult to industrialized production and application.On the other hand, sulfur-bearing based flame retardant, With excellent fireproof performance, the advantages such as additive amount is few.Therefore, by closing the nuclear structure segment of DOPO, diphenyl sulfone Reason assembling and modification, prepare phosphorus nitrogen and sulphur synergistic based flame retardant, solve that existing fire retardant performance is poor, phosphorus content is high, conjunction At the technical problem of complex process.
Summary of the invention
The technical problem to be solved in the present invention is to provide sulphur-nitrogen containing double DOPO, diphenyl sulfone structural unit-phosphorus ternary associations Imitate the preparation method of fire retardant;It is good with macromolecule resin compatibility that the based flame retardant has, and chemical and thermal stability is high, effective When phosphorus content is 0.22wt.%, vertical combustion grade is up to UL-94V-0 grades.
To solve the above-mentioned problems, the technical scheme is that
DOPO and 3,3/,4,4/Tetramino diphenyl sulphone (DPS) occurs Atherton-Todd reaction and generates containing DOPO, diphenyl sulphone (DPS) structure The phosphorus nitrogen sulphur synergistic fire retardant of unit, particular chemical formula are as follows:
The preparation method of diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO, comprising the following steps:
DOPO (miscellaneous phenanthrene -10- the oxidation of the miscellaneous -10- phosphine of 9,10- dihydro-9-oxy is sequentially added in the container equipped with agitating device Object), 3,3 ', 4,4 '-tetramino diphenyl sulphone (DPS)s, carbon tetrachloride and solvent, stirring is uniformly mixed system, under conditions of ice bath, Organic base is added into reaction system, reacts at room temperature, filtrate, filtrate is obtained by filtration after the reaction was completed in TLC tracking reaction process After extraction is washed, is concentrated, normal heptane-acetone (V is addedNormal heptane∶VAcetone=1: 4) being allowed to precipitate, be dried in vacuo to obtain the diphenyl sulphone (DPS) containing DOPO Nitrogen phosphorus sulphur synergistic fire retardant.
3,3 ', the 4,4 '-tetramino diphenyl sulphone (DPS), DOPO, carbon tetrachloride, organic base molar ratio be 1.0: (4.4~ 6.0): (4.4~6.0): (4.4~6.0).
The solvent is methylene chloride, ethyl acetate, acetonitrile, tetrahydrofuran, N,N-dimethylformamide, one in chloroform Kind is a variety of.
The solvent usage is 4~8 times of DOPO mass.
The organic base is selected from one of trimethylamine, triethylamine, sodium methoxide, sodium ethoxide or a variety of.
Diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant prepared by the present invention containing DOPO has thermal stability and chemical stabilization Property height, Halogen, suppression cigarette, with when macromolecule resin compatibility is good, effective phosphorus content is down to 0.22wt.%, vertical combustion grade can Up to UL-94V-0 grades etc..
Compared with prior art, the beneficial effects of the present invention are:
(1) DOPO structural unit is introduced into diphenyl sulphone (DPS) molecule, simultaneously containing tri- kinds of element associations of S, N, P in molecular structure Imitate fire-retardant, p and s element can promote to be formed layer of charcoal, and nitrogen, which generates ammonia after capable of burning, gas phase flame retardant effect, and synergistic effect overcomes The deficiency of single ignition-proof element, improves heat resistance and high temperature charring rate, when effective phosphorus content is down to 0.22wt.%, high score Subtree rouge vertical combustion grade is up to UL-94V-0 grades etc..
(2) preparation of this fire retardant is simple, and mild condition, raw material is easy to get, easy to industrialized production.
(3) the product thermostabilization that the present invention synthesizes is good, thermal stability with higher and hydrolytic resistance.
Specific embodiment
The invention will be further described with reference to embodiments, but the scope of protection of present invention is not limited to reality Apply the range of example statement.
Embodiment 1:
In N2Under protection, 3,3 are added into the reaction flask equipped with mechanical agitator/,4,4/Tetramino diphenyl sulphone (DPS) 11.5g (0.1mol), DOPO 95.2g (0.44mol), 67.7g (0.44mol) carbon tetrachloride and 350mL methylene chloride are added to reaction In bottle, 30min is stirred.It is under condition of ice bath, the mixed solution of 60mL methylene chloride and 22.3g (0.22mol) triethylamine is slow Slowly it is added dropwise in above-mentioned reaction flask, after being added dropwise to complete, room temperature reaction, TLC tracking reaction process is obtained by filtration after the reaction was completed Filtrate.Normal heptane-acetone (V is added after extraction is washed, is concentrated in filtrateNormal heptane∶VAcetone=1: 4) being allowed to precipitating makes, and is dried in vacuo to obtain mesh Mark compound, light yellow solid powder, yield 72.1%.
Diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic fire retardant produced by the present invention containing DOPO, initial decomposition temperature are about respectively 292 DEG C, The carbon yield of 800 DEG C of fire retardants respectively reaches 31%, which has preferable thermal stability, and carbon yield is high, has preferable Flame retardant effect.
The analysis result of fire retardant produced by the present invention is as follows:
Compound results of IR: FT-IR (KBr), v/cm-1:3273(N-H),3021(Ar-H),1416(P- ), Ph 1211 (P=O), 1129 (P-O-Ar).
Hydrogen nuclear magnetic resonance spectrum analysis result:1H NMR(DMSO-d6,400MHz):8.07-7.93(m,4H,ArH),7.75- 7.62(m,4H,ArH),7.58-7.52(m,5H,ArH),7.48-7.41(m,5H,ArH),7.36-7.31(m,5H,ArH), 7.29-7.23(m,5H,ArH),6.97-6.91(m,6H,ArH),6.86-6.75(m,5H,ArH),5.92(s,4H,N-H).
Embodiment 2:
The amount of DOPO increases to 103.8g (0.48mol), other same examples one, target compound yield 76.5%.
The amount of DOPO increases to 112.4g (0.52mol), other same examples one, target compound yield 81.3%.
The amount of DOPO increases to 121.1g (0.56mol), other same examples one, target compound yield 86.2%.
The amount of DOPO increases to 127.8g (0.60mol), other same examples one, target compound yield 75.8%.
Embodiment 3:
The amount of carbon tetrachloride increases to 73.9g (0.48mol), other same examples one, target compound yield 75.3%.
The amount of carbon tetrachloride increases to 80.1g (0.52mol), other same examples one, target compound yield 81.2%.
The amount of carbon tetrachloride increases to 86.2g (0.56mol), other same examples one, target compound yield 83.5%.
The amount of carbon tetrachloride increases to 92.3g (0.60mol), other same examples one, target compound yield 79.2%.
Embodiment 4:
The amount of triethylamine increases to 48.6g (0.48mol), other same examples one, target compound yield 74.5%.
The amount of triethylamine increases to 52.7g (0.52mol), other same examples one, target compound yield 76.3%.
The amount of triethylamine increases to 60.8g (0.56mol), other same examples one, target compound yield 76.1%.
Embodiment 5:
Alkali changes sodium methoxide, other same examples one, target compound yield 42.1% into.
Alkali changes sodium ethoxide, other same examples one, target compound yield 39.5% into.
Diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic fire retardant provided by the invention containing DOPO is as polyurethane, the flame-retardant additive of ABS Application, the phosphorus content of the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO is 0.22wt.%~0.86wt.%, Concrete application is as follows:
Batten is made according to insulating laminated sheet combustibility testing standard, is limited respectively with JF-3 type oxygen index measurer Oxygen index (OI) (LOI) test, FZ-5401 type Vertical combustion instrument carry out the test of UL94 vertical combustion performance, measurement result such as following table 1- 2.Its limit oxygen index content is 21.7~39.1, and carbon yield is 23.8~34.3%.Contain in the flame retardant type macromolecule resin When phosphorus amount is 0.22wt.%, vertical combustion grade is up to UL-94V-0 grades.
Flame retardant effect of the target compound of 1 embodiment of the present invention 1 of table synthesis as polyurethane flame-proof additive
Flame retardant effect of the target compound of 2 embodiment of the present invention 1 of table synthesis as ABS flame-retardant additive

Claims (7)

1. the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO, which is characterized in that chemical structural formula is as follows:
2. the preparation method of the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO, feature exist according to claim 1 In, the specific steps are as follows: the miscellaneous miscellaneous phenanthrene -10- of -10- phosphine of 9,10- dihydro-9-oxy is sequentially added in the container equipped with agitating device Oxide, 3,3 ', 4,4 '-tetramino diphenyl sulphone (DPS)s, carbon tetrachloride and solvent, stirring is uniformly mixed system, in the condition of ice bath Under, organic base is added into reaction system, reacts at room temperature, filtrate is obtained by filtration after the reaction was completed in TLC tracking reaction process, filters Normal heptane-acetone V is added after extraction is washed, is concentrated in liquidNormal heptane∶VAcetoneBe allowed to precipitate at=1: 4, is dried in vacuo to obtain-the 9- containing 9,10- dihydro The diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic fire retardant of the miscellaneous phenanthrene -10- oxide of oxa- -10- phosphine.
3. the preparation method of the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO, feature exist according to claim 1 In, described 3,3 ', 4,4 '-tetramino diphenyl sulphone (DPS)s, the miscellaneous phenanthrene -10- oxide of the miscellaneous -10- phosphine of 9,10- dihydro-9-oxy, carbon tetrachloride, The molar ratio of organic base is 1.0: (4.4~6.0): (4.4~6.0): (4.4~6.0).
4. the preparation method of the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO, feature exist according to claim 1 In, the solvent be one of methylene chloride, ethyl acetate, acetonitrile, tetrahydrofuran, n,N-Dimethylformamide, chloroform or It is a variety of.
5. the preparation method of the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO, feature exist according to claim 1 In the solvent usage is 4~8 times of the miscellaneous phenanthrene -10- oxide mass of the miscellaneous -10- phosphine of 9,10- dihydro-9-oxy.
6. the preparation method of the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO, feature exist according to claim 1 In the organic base is selected from one of trimethylamine, triethylamine, sodium methoxide, sodium ethoxide or a variety of.
7. the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant according to claim 1 containing DOPO is in polyurethane and ABS high score Application on subtree resin system, the phosphorus content of the diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO are 0.22wt.% ~0.86wt.%.
CN201910369146.6A 2019-05-05 2019-05-05 The preparation method and applications of diphenyl sulphone (DPS) nitrogen phosphorus sulphur synergistic flame retardant containing DOPO Pending CN110092944A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113402550A (en) * 2021-06-18 2021-09-17 中国科学技术大学 Thiophosphonate-containing flame-retardant polyol, synthesis method thereof and application thereof in preparation of flame-retardant polyurethane flexible foam
CN115395174A (en) * 2022-09-01 2022-11-25 欣旺达电动汽车电池有限公司 Composite diaphragm, secondary battery and electric equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105733024A (en) * 2016-01-27 2016-07-06 厦门大学 Phosphorus/nitrogen/sulfur-containing flame retardant and preparation method thereof
CN108440598A (en) * 2018-04-08 2018-08-24 三峡大学 A kind of preparation method and applications of sulphur-nitrogen-phosphorus composite fire retardant
CN109265479A (en) * 2018-08-21 2019-01-25 中北大学 A kind of diaminodiphenylsulfone derivative flame retardant and its preparation method and application

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105733024A (en) * 2016-01-27 2016-07-06 厦门大学 Phosphorus/nitrogen/sulfur-containing flame retardant and preparation method thereof
CN108440598A (en) * 2018-04-08 2018-08-24 三峡大学 A kind of preparation method and applications of sulphur-nitrogen-phosphorus composite fire retardant
CN109265479A (en) * 2018-08-21 2019-01-25 中北大学 A kind of diaminodiphenylsulfone derivative flame retardant and its preparation method and application

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113402550A (en) * 2021-06-18 2021-09-17 中国科学技术大学 Thiophosphonate-containing flame-retardant polyol, synthesis method thereof and application thereof in preparation of flame-retardant polyurethane flexible foam
CN113402550B (en) * 2021-06-18 2023-08-29 中国科学技术大学 Flame-retardant polyol containing thiophosphonate, synthesis method thereof and application thereof in preparation of flame-retardant polyurethane soft foam
CN115395174A (en) * 2022-09-01 2022-11-25 欣旺达电动汽车电池有限公司 Composite diaphragm, secondary battery and electric equipment
CN115395174B (en) * 2022-09-01 2023-06-06 欣旺达电动汽车电池有限公司 Composite diaphragm, secondary battery and electric equipment

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Application publication date: 20190806