CN106958143A - A kind of preparation method of antiflaming finishing agent and its fire-retardant Lyocell fiber fabric - Google Patents

A kind of preparation method of antiflaming finishing agent and its fire-retardant Lyocell fiber fabric Download PDF

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CN106958143A
CN106958143A CN201710222336.6A CN201710222336A CN106958143A CN 106958143 A CN106958143 A CN 106958143A CN 201710222336 A CN201710222336 A CN 201710222336A CN 106958143 A CN106958143 A CN 106958143A
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diamine
methylenephosphonic acid
retardant
fire
lyocell fiber
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任元林
程博闻
刘晓辉
张秋艳
曾倩
谷叶童
张悦
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Tianjin Polytechnic University
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Tianjin Polytechnic University
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/44Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen containing nitrogen and phosphorus
    • D06M13/447Phosphonates or phosphinates containing nitrogen atoms
    • 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
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3808Acyclic saturated acids which can have further substituents on alkyl
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/402Amides imides, sulfamic acids
    • D06M13/432Urea, thiourea or derivatives thereof, e.g. biurets; Urea-inclusion compounds; Dicyanamides; Carbodiimides; Guanidines, e.g. dicyandiamides
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02Natural fibres, other than mineral fibres
    • D06M2101/04Vegetal fibres
    • D06M2101/06Vegetal fibres cellulosic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/30Flame or heat resistance, fire retardancy properties

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses a kind of preparation method of antiflaming finishing agent and its fire-retardant Lyocell fiber fabric, it is related to organic synthesis and textile engineering technical field.The preparation process of antiflaming finishing agent is:First using hydrazine hydrate, phosphorous acid and formaldehyde as the methylenephosphonic acid of Material synthesis diamine four, the methylenephosphonic acid of diamine four and urea reaction are secondly generated into the fire retardant:The methylenephosphonic acid ammonium of diamine four, the methylenephosphonic acid ammonium of diamine four is soluble in water, solution is configured to, and a certain amount of dicyandiamide formation mixed solution is added, produce fire retarding treating liquid;The antiflaming finishing agent is applied to the fire-retardant of Lyocell fiber fabric using compregnate, baking.Fire retardant preparation technology of the present invention is simple, low cost, yield are high, and environmental protection on the basis of the good durable flame-retardant of Lyocell fiber fabric is ensured, its dyeability is not influenceed, with great market prospects.

Description

A kind of preparation method of antiflaming finishing agent and its fire-retardant Lyocell fiber fabric
Technical field
The present invention relates to organic synthesis and textile engineering technical field, and in particular to a kind of preparation of antiflaming finishing agent Method and its fire-retardant Lyocell fiber fabric.
Background technology
Cellulose fibre, such as cotton fiber, flaxen fiber are the most maximum natural fibers of extensive, storage level of originating in the world, Have the advantages that excellent hygroscopicity, easy dyeing, with skin compatibility is good, environmental protection, be widely used in clothes, drapery Deng field, significant role has been played in national economy.Viscose rayon is as regenerated celulose fibre, with smooth nice and cool, saturating Gas is good, antistatic, comfortable and easy to wear, dyes the characteristic such as gorgeous, pure can both spin, can also with other textile fabric blending, suitably In manufacturing underwear, coat and various adornments.However, cotton fiber belongs to flammable fiber with viscose rayon, the weaving being made from it Grade easy firing and trigger fire, therefore, be directed to the fire-retardant research of cellulose fibre always both at home and abroad.
So far, the flame-proof cotton fabric of industrialization is more based on halogenated flame retardant and phosphorus flame retardant, such as Proban ammonia Smoked technique, preshrunk body is generated using tetra methylol phosphonium chloride and urea reaction, and the subsequent preshrunk body is oozed in the way of padding drying Enter into the amorphous area and gap of cellulose fibre, then by ammonia cure processing, the methylol and ammonia for making preshrunk body are crosslinked, in fabric It is internally formed after non-soluble polymer and obtains rock-steady structure through hydrogen peroxide oxidation, obtains excellent flame-proof cotton fabric.Through the resistance Though combustion finishing technique can obtain excellent fire-retardant durable fabric, it can be discharged during arranging after formaldehyde gas, and arrangement Fabric feeling is poor, limits the extensive use of this technique.Another flame-proof finishing process is Pyrovatex CP techniques, is utilized N- methylols -3- (dimethoxy phosphono) propionamides crosslink reaction under acid catalysis with crosslinking agent with cellulose, are formed Durable flame-retardant bafta, but the finishing agent contains free formaldehyde, can be discharged during storage and use after textile finishing Free formaldehyde, equally limits its extensive use.Crosslinking agent is made using polyacid, is knitted though the fire-retardant of low formaldehyde emission can be obtained Thing, but still growing environmental requirement can not be met.
Lyocell fiber is a kind of new regenerated celulose fibre, compared with cellulose viscose manufacturing technique, with technique The features such as relatively easy, environmental protection, prepared Lyocell fiber has high-strength good characteristic, as falling over each other both at home and abroad The green fiber of exploitation.However, the fiber is as other native cellulose fibres and regenerated celulose fibre, with inflammable Defect, therefore, the fire-retardant research to Lyocell fiber both at home and abroad are done a lot of work.Chinese invention patent application number is CN A kind of method for preparing flame-retardant Lyocell fiber disclosed in 1133617A, i.e., will in conventional Lyocell fiber production process Proban and Pyrovatex fire retarding treating liquids are penetrated into the non-dry fibers before fiber is dried for the first time, are prepared fire-retardant Lyocell fiber, but the feel decline of fiber;Chinese invention patent application number is disclosed 3- hydroxyls for CN 103541034A Phenyl phosphorus oxygen base propionic acid is blended in Lyocell fiber spinning solution, spinning flame-retardant Lyocell fiber, but 3- hydroxy phenyl phosphorus Epoxide propionic acid has certain water solubility, have impact on the durability of fire-retardant of the flame-retardant Lyocell fiber.
The content of the invention
For deficiency present on prior art, the present invention seeks to be to provide a kind of preparation method of antiflaming finishing agent And its fire-retardant Lyocell fiber fabric, simply, yield is high by preparation technology, and environmental protection, fire-retardant Lyocell fiber is knitted Thing fire resistance is good, good endurance.
To achieve these goals, the present invention is to realize by the following technical solutions:A kind of antiflaming finishing agent, its is same Shi Hanyou phosphorus nitrogen flame-retardant compositions, its structural formula is
A kind of preparation method of antiflaming finishing agent, its preparation process is:(1) first using hydrazine hydrate, phosphorous acid and formaldehyde as The methylenephosphonic acid of Material synthesis diamine four, wherein, n (hydrazine hydrate):N (formaldehyde):N (phosphorous acid)=1:4:4;
(2) secondly, the methylenephosphonic acid of diamine four and urea reaction are generated into the fire retardant:The methylenephosphonic acid ammonium of diamine four.Its In, n (methylenephosphonic acid of diamine four):N (urea)=1:2~1:4;
(3) it is the methylenephosphonic acid ammonium of diamine four is soluble in water, it is configured to concentration and is 50g/L~300g/L solution, and adds A certain amount of dicyandiamide formation mixed solution, produces fire retarding treating liquid.
The specific preparation process of antiflaming finishing agent is:(1) weigh 80% hydrazine hydrate 200g (5mol), be poured into and be equipped with In the 5L reactors of constant pressure funnel, mechanical agitator and thermometer, add 240g distilled water and be diluted to 80% hydrazine hydrate 40%, agitator is started, automatically controlled heating, when temperature rises to 30~40 DEG C, adds 20mol (1640g, 993.3ml) phosphorous acid, Be continuously heating to 40~50 DEG C, then by constant pressure funnel be added dropwise 36% formalin 1666.7g (20mol, 2032.5ml), formalin completion of dropping is treated, reaction system 100~110 DEG C are warming up to, 2~3h of sustained response produces connection The methylenephosphonic acid crude product of amine four, is 1 with volume ratio:1 absolute ethyl alcohol and acetone is recrystallized to crude product, obtains refined The methylenephosphonic acid of diamine four;
(2) methylenephosphonic acid of a certain amount of diamine four obtained in step (1) is dissolved in distilled water, and with urea according to rubbing You compare 1:2~1:4 react 1~2h in 100~105 DEG C, that is, obtain fire retardant:The methylenephosphonic acid ammonium of diamine four;
(3) it is 50g/L~300g/L the methylenephosphonic acid ammonium of diamine four obtained in step (2) to be configured into concentration with distilled water Solution, and add the methylenephosphonic acid ammonium mass fraction of diamine four be 1~10% dicyandiamide, that is, obtain antiflaming finishing agent.
A kind of fire-retardant Lyocell fiber fabric of application antiflaming finishing agent, its preparation process is:Lyocell fiber is knitted Thing be impregnated in concentration be 50g/L~300g/L fire retarding treating liquid, dipping temperature scope room temperature~100 DEG C, dip time be 5~ 30min, is suppressed Lyocell fiber fabric with double roll press, the pick-up rate of Lyocell fiber fabric is maintained at 50% afterwards Between~120%, then in 100~120 DEG C of dry 5~30min, 30s~5min is baked then at 160~200 DEG C, that is, is hindered Fire Lyocell fiber fabric.
Beneficial effects of the present invention:This fire retardant preparation technology is simple, and yield is high, environmental protection, fire-retardant Lyocell Fabric fire resistance is good, good endurance, and its mechanical property is good, preparation method environmental protection, and technique is simple, finisher Without using noxious material in skill, and also discharged during its use without noxious material, meet environmental requirement.
Embodiment
To be easy to understand technological means, creation characteristic, reached purpose and effect of the invention realized, with reference to Embodiment, is expanded on further the present invention.
Present embodiment uses following technical scheme:A kind of antiflaming finishing agent, it contains phosphorus nitrogen flame-retardant composition simultaneously, Its structural formula is
A kind of preparation method of antiflaming finishing agent, its preparation process is:(1) first using hydrazine hydrate, phosphorous acid and formaldehyde as The methylenephosphonic acid of Material synthesis diamine four, wherein, n (hydrazine hydrate):N (formaldehyde):N (phosphorous acid)=1:4:4;
(2) secondly, the methylenephosphonic acid of diamine four and urea reaction are generated into the fire retardant:The methylenephosphonic acid ammonium of diamine four.Its In, n (methylenephosphonic acid of diamine four):N (urea)=1:2~1:4;
(3) it is the methylenephosphonic acid ammonium of diamine four is soluble in water, it is configured to concentration and is 50g/L~300g/L solution, and adds A certain amount of dicyandiamide formation mixed solution, produces fire retarding treating liquid.
The specific preparation process of the antiflaming finishing agent is:(1) weigh 80% hydrazine hydrate 200g (5mol), be poured into dress Have in the 5L reactors of constant pressure funnel, mechanical agitator and thermometer, add 240g distilled water and dilute 80% hydrazine hydrate To 40%, agitator is started, automatically controlled heating, when temperature rises to 30~40 DEG C, adds 20mol (1640g, 993.3ml) phosphorous Acid, is continuously heating to 40~50 DEG C, then by constant pressure funnel be added dropwise 36% formalin 1666.7g (20mol, 2032.5ml), formalin completion of dropping is treated, reaction system 100~110 DEG C are warming up to, 2~3h of sustained response produces connection The methylenephosphonic acid crude product of amine four, is 1 with volume ratio:1 absolute ethyl alcohol and acetone is recrystallized to crude product, obtains refined The methylenephosphonic acid of diamine four;
(2) methylenephosphonic acid of a certain amount of diamine four obtained in step (1) is dissolved in distilled water, and with urea according to rubbing You compare 1:2~1:4 react 1~2h in 100~105 DEG C, that is, obtain fire retardant:The methylenephosphonic acid ammonium of diamine four;
(3) it is 50g/L~300g/L the methylenephosphonic acid ammonium of diamine four obtained in step (2) to be configured into concentration with distilled water Solution, and add the methylenephosphonic acid ammonium mass fraction of diamine four be 1~10% dicyandiamide, that is, obtain antiflaming finishing agent.
A kind of fire-retardant Lyocell fiber fabric of application antiflaming finishing agent, its preparation process is:Lyocell fiber is knitted Thing be impregnated in concentration be 50g/L~300g/L fire retarding treating liquid, dipping temperature scope room temperature~100 DEG C, dip time be 5~ 30min, is suppressed Lyocell fiber fabric with double roll press, the pick-up rate of Lyocell fiber fabric is maintained at 50% afterwards Between~120%, then in 100~120 DEG C of dry 5~30min, 30s~5min is baked then at 160~200 DEG C, that is, is hindered Fire Lyocell fiber fabric.
Present embodiment fire retardant phosphorus, nitrogen content are of a relatively high, and fire retardant can be with the shape of chemical bond during arrangement Formula is combined with cellulosic molecule, improves the durability of fire-retardant of Lyocell fiber fabric;It is fire-retardant process environmental protection, fire-retardant The brill function admirable of Lyocell fiber fabric, limited oxygen index value is up to more than 30%;This fire retardant preparation method is simple, into This low, environmental protection, on the basis of the good durable flame-retardant of Lyocell fiber fabric is ensured, its dyeability is not influenceed, With wide market application foreground.
Embodiment 1:Prepared by fire retardant and the specific preparation process of flame-proof treatment of Lyocell fiber fabric is:(1) weigh 80% hydrazine hydrate 50g (1.25mol), is poured into the 2L reactions equipped with constant pressure funnel, mechanical agitator and thermometer In kettle, add 60g distilled water and 80% hydrazine hydrate is diluted to 40%, start agitator, automatically controlled heating, when temperature rises to 30 DEG C When, 5mol (410g, 248.3ml) phosphorous acid is added, 50 DEG C are continuously heating to, then 36% is added dropwise by constant pressure funnel Formalin 416.7g (5mol, 508ml), treats formalin completion of dropping, and reaction system is warming up into 105 DEG C, sustained response 2h, produces the methylenephosphonic acid crude product of diamine four, is 1 with volume ratio:1 absolute ethyl alcohol and acetone is recrystallized to crude product, Obtain the refined methylenephosphonic acid of diamine four;
(2) methylenephosphonic acid of a certain amount of diamine four obtained in step (1) is dissolved in distilled water, and with urea according to rubbing You compare 1:2 react 1.5h in 100 DEG C, that is, obtain fire retardant:The methylenephosphonic acid ammonium of diamine four;
(3) the methylenephosphonic acid ammonium of diamine four obtained in step (2) is configured to the solution that concentration is 60g/L with distilled water, And add the dicyandiamide that the methylenephosphonic acid ammonium mass fraction of diamine four is 5%, that is, obtain antiflaming finishing agent.
In the fire retarding treating liquid that Lyocell fiber fabric is impregnated in above-mentioned concentration, 50 DEG C of dipping temperature, dip time is 20min, is suppressed Lyocell fiber fabric with double roll press afterwards, and the pick-up rate for making Lyocell fiber fabric is 50%, so After 105 DEG C of dry 10min, 30s is baked then at 200 DEG C, that is, obtains flame-retardant Lyocell fiber fabric.
Embodiment 2:Prepared by fire retardant and the specific preparation process of flame-proof treatment of Lyocell fiber fabric is:(1) weigh 80% hydrazine hydrate 50g (1.25mol), is poured into the 2L reactions equipped with constant pressure funnel, mechanical agitator and thermometer In kettle, add 60g distilled water and 80% hydrazine hydrate is diluted to 40%, start agitator, automatically controlled heating, when temperature rises to 40 DEG C When, 5mol (410g, 248.3ml) phosphorous acid is added, 40 DEG C are continuously heating to, then 36% is added dropwise by constant pressure funnel Formalin 416.7g (5mol, 508ml), treats formalin completion of dropping, and reaction system is warming up into 110 DEG C, sustained response 3h, produces the methylenephosphonic acid crude product of diamine four, is 1 with volume ratio:1 absolute ethyl alcohol and acetone is recrystallized to crude product, Obtain the refined methylenephosphonic acid of diamine four;
(2) methylenephosphonic acid of a certain amount of diamine four obtained in step (1) is dissolved in distilled water, and with urea according to rubbing You compare 1:4 react 1h in 105 DEG C, that is, obtain fire retardant:The methylenephosphonic acid ammonium of diamine four;
(3) the methylenephosphonic acid ammonium of diamine four obtained in step (2) is configured to the solution that concentration is 50g/L with distilled water, And add the dicyandiamide that the methylenephosphonic acid ammonium mass fraction of diamine four is 1%, that is, obtain antiflaming finishing agent.
In the fire retarding treating liquid that Lyocell fiber fabric is impregnated in above-mentioned concentration, 50 DEG C of dipping temperature, dip time is 20min, is suppressed Lyocell fiber fabric with double roll press afterwards, and the pick-up rate for making Lyocell fiber fabric is 100%, so After 120 DEG C of dry 5min, 3min is baked then at 160 DEG C, that is, obtains flame-retardant Lyocell fiber fabric.
Embodiment 3:Prepared by fire retardant and the specific preparation process of flame-proof treatment of Lyocell fiber fabric is:(1) weigh 80% hydrazine hydrate 50g (1.25mol), is poured into the 2L reactions equipped with constant pressure funnel, mechanical agitator and thermometer In kettle, add 60g distilled water and 80% hydrazine hydrate is diluted to 40%, start agitator, automatically controlled heating, when temperature rises to 40 DEG C When, 5mol (410g, 248.3ml) phosphorous acid is added, 45 DEG C are continuously heating to, then 36% is added dropwise by constant pressure funnel Formalin 416.7g (5mol, 508ml), treats formalin completion of dropping, and reaction system is warming up into 100 DEG C, sustained response 2h, produces the methylenephosphonic acid crude product of diamine four, is 1 with volume ratio:1 absolute ethyl alcohol and acetone is recrystallized to crude product, Obtain the refined methylenephosphonic acid of diamine four;
(2) methylenephosphonic acid of a certain amount of diamine four obtained in step (1) is dissolved in distilled water, and with urea according to rubbing You compare 1:3 react 1.5h in 100 DEG C, that is, obtain fire retardant:The methylenephosphonic acid ammonium of diamine four;
(3) the methylenephosphonic acid ammonium of diamine four obtained in step (2) is configured to the solution that concentration is 300g/L with distilled water, And add the dicyandiamide that the methylenephosphonic acid ammonium mass fraction of diamine four is 10%, that is, obtain antiflaming finishing agent.
In the fire retarding treating liquid that Lyocell fiber fabric is impregnated in above-mentioned concentration, 30min, Zhi Houyong are impregnated at room temperature Double roll press is suppressed Lyocell fiber fabric, and the pick-up rate for making Lyocell fiber fabric is 120%, then dry in 100 DEG C Dry 30min, 30min is baked then at 1600 DEG C, that is, obtains flame-retardant Lyocell fiber fabric.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its Equivalent thereof.

Claims (4)

1. a kind of antiflaming finishing agent, it is characterised in that it contains phosphorus nitrogen flame-retardant composition simultaneously, its structural formula is
2. a kind of preparation method of antiflaming finishing agent, it is characterised in that its preparation process is:
(1) first using hydrazine hydrate, phosphorous acid and formaldehyde as the methylenephosphonic acid of Material synthesis diamine four, wherein, n (hydrazine hydrate):N (first Aldehyde):N (phosphorous acid)=1:4:4;
(2) secondly, the methylenephosphonic acid of diamine four and urea reaction are generated into the fire retardant:The methylenephosphonic acid ammonium of diamine four.Wherein, n (methylenephosphonic acid of diamine four):N (urea)=1:2~1:4;
(3) it is the methylenephosphonic acid ammonium of diamine four is soluble in water, the solution that concentration is 50g/L~300g/L is configured to, and add certain The dicyandiamide formation mixed solution of amount, produces fire retarding treating liquid.
3. a kind of fire-retardant Lyocell fiber fabric of application antiflaming finishing agent, it is characterised in that its preparation process is:Will Lyocell fiber fabric be impregnated in concentration be 50g/L~300g/L fire retarding treating liquid, dipping temperature scope room temperature~100 DEG C, Dip time is 5~30min, and Lyocell fiber fabric is suppressed with double roll press afterwards, makes rolling for Lyocell fiber fabric Liquid rate is maintained between 50%~120%, and then in 100~120 DEG C of dry 5~30min, 30s is baked then at 160~200 DEG C ~5min, that is, obtain flame-retardant Lyocell fiber fabric.
4. a kind of preparation method of antiflaming finishing agent according to claim 2, it is characterised in that its specific preparation process For:(1) weigh 80% hydrazine hydrate 200g (5mol), be poured into equipped with constant pressure funnel, mechanical agitator and thermometer 5L reactors in, add 240g distilled water 80% hydrazine hydrate is diluted to 40%, start agitator, temperature is worked as in automatically controlled heating When rising to 30~40 DEG C, 20mol (1640g, 993.3ml) phosphorous acid is added, 40~50 DEG C is continuously heating to, then passes through constant pressure 36% formalin 1666.7g (20mol, 2032.5ml) is added dropwise in dropping funel, formalin completion of dropping is treated, by reactant System is warming up to 100~110 DEG C, and 2~3h of sustained response produces the methylenephosphonic acid crude product of diamine four, is 1 with volume ratio:1 it is anhydrous Ethanol and acetone are recrystallized to crude product, obtain the refined methylenephosphonic acid of diamine four;
(2) methylenephosphonic acid of a certain amount of diamine four obtained in step (1) is dissolved in distilled water, and with urea according to mol ratio 1:2~1:4 react 1~2h in 100~105 DEG C, that is, obtain fire retardant:The methylenephosphonic acid ammonium of diamine four;
(3) it is the molten of 50g/L~300g/L the methylenephosphonic acid ammonium of diamine four obtained in step (2) to be configured into concentration with distilled water Liquid, and add the dicyandiamide that the methylenephosphonic acid ammonium mass fraction of diamine four is 1~10%, that is, obtain antiflaming finishing agent.
CN201710222336.6A 2017-04-06 2017-04-06 A kind of preparation method of antiflaming finishing agent and its fire-retardant Lyocell fiber fabric Pending CN106958143A (en)

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CN107353437A (en) * 2017-08-08 2017-11-17 青岛长荣化工科技有限公司 A kind of expansion type flame retardant and preparation method thereof
CN107903286A (en) * 2017-10-17 2018-04-13 山东泰和水处理科技股份有限公司 A kind of two methylenephosphonic acid of fire retardant cyclohexylamine and preparation method thereof
CN108018715A (en) * 2017-12-08 2018-05-11 天津工业大学 A kind of preparation method of antiflaming finishing agent and fire-retardant regenerated cellulose fiber
CN109180724A (en) * 2018-10-22 2019-01-11 长江大学 A kind of environment-friendly type calcium scale is drawn up agent and preparation method thereof
CN109576809A (en) * 2018-12-10 2019-04-05 天津工业大学 Compound phosphorous-nitrogen system bittern-free fire retardant and its preparation method and application
CN112680963A (en) * 2020-12-15 2021-04-20 南京金羚生物基纤维有限公司 Preparation method of novel flame-retardant Lyocell fiber
CN114197222A (en) * 2021-12-24 2022-03-18 山东龙港硅业科技有限公司 Flame-retardant anti-dripping polyester fiber and preparation method and application thereof

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CN107353437A (en) * 2017-08-08 2017-11-17 青岛长荣化工科技有限公司 A kind of expansion type flame retardant and preparation method thereof
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CN109576809B (en) * 2018-12-10 2021-09-14 天津工业大学 Composite phosphorus-nitrogen halogen-free flame retardant and preparation method and application thereof
CN112680963A (en) * 2020-12-15 2021-04-20 南京金羚生物基纤维有限公司 Preparation method of novel flame-retardant Lyocell fiber
CN114197222A (en) * 2021-12-24 2022-03-18 山东龙港硅业科技有限公司 Flame-retardant anti-dripping polyester fiber and preparation method and application thereof

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