CN107892808A - A kind of electric wire halogen-free flameproof TPU elastic compositions and preparation method thereof - Google Patents
A kind of electric wire halogen-free flameproof TPU elastic compositions and preparation method thereof Download PDFInfo
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- CN107892808A CN107892808A CN201711175804.5A CN201711175804A CN107892808A CN 107892808 A CN107892808 A CN 107892808A CN 201711175804 A CN201711175804 A CN 201711175804A CN 107892808 A CN107892808 A CN 107892808A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/0622—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
- C08G73/0638—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with at least three nitrogen atoms in the ring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/302—Polyurethanes or polythiourethanes; Polyurea or polythiourea
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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Abstract
The invention discloses a kind of electric wire halogen-free flameproof TPU elastic compositions, and by weight percentage, raw material composition includes：TPU matrix materials 65~90%；Phosphorus nitrogen composite flame retardant system 10~30%；Auxiliary agent 1~5%；Described phosphorus nitrogen composite flame retardant system includes diethyl hypo-aluminum orthophosphate and into carbon component, and described into carbon component be insoluble insoluble cross-linked polymer, and Crosslink structure such as following formula (I) is shown；The present invention develops a kind of electric wire halogen-free flameproof TPU elastic compositions, and the TPU elastic compositions have the characteristics that no molten drop, high fire-retardance, resistance to migration, soft abrasion-resistant, oil resistant.It can be applied to the high fire-retardances such as new-energy automobile, oil resistant, the cable field of soft abrasion-resistant requirement.
Description
Technical field
The present invention relates to halogen-free flameproof TPU technical field, and in particular to a kind of electric wire halogen-free flameproof TPU elasticity
Body composition and preparation method thereof.
Background technology
Polyurethane is a kind of polymer of main chain constitutional repeating unit Han-NHCOO-, english abbreviation PU, by isocyanates
(monomer) is polymerized with hydroxy compounds.Due to containing highly polar carbamate groups, insoluble in non-polar solven, having good
Oil resistivity well, toughness, wearability, resistance to ag(e)ing etc., are widely used multi-field.Polyurethane includes two class materials
Material, one kind is thermosetting PU, and thermosetting PU is typically used in the fields such as synthetic leather, foaming；One kind is thermoplastic polyurethane, letter
Claiming TPU, this kind of material has the processing mode of thermoplastic, has thermosetting PU performance characteristics again, quickly grows at present,
It is mainly used in the fields such as sole, cable.Particularly new electric automobile and charge cable field, it is soft to have given full play to its
The characteristic such as soft, wear-resisting, oil resistant, and receive much concern.
For TPU in the application of cable field, relevant criterion proposes requirement to fire-retardant, and polyurethane is a kind of combustibles,
Oxygen index (OI) is relatively low, and TPU its molten drop phenomenon in high-temp combustion is serious, it is difficult to reaches the flame-retardancy requirements of prescribed by standard, institute
It is larger with its fire-retardant difficulty.
At present, for the fire-retardant of TPU elastomers, the basic flame-retardant system of two classes is included：Halogen system flame-retardant system and non-halogen
Flame-retardant system.Halogen system flame-retardant system is typically brominated flame-retardant collaboration antimony oxide, and numerous studies show, are hindered added with bromine system
Firing the TPU materials of agent can produce thick smoke and the harmful substance such as hydrogen bromide in burning, human body can be caused to suffocate.Therefore, it is TPU bullets
The safe and environment-friendly, halogen-free flame-retardant system of elastomer material exploitation turns into the focus of research, occurs new being applied to TPU bullets in recent years
The halogen-free flame retardants of elastomer material.
According to the literature, the halogen-free flame retardants applied to TPU elastomeric materials mainly includes two major class primary structures：It is a kind of
It is inorganic hydroxide system, including magnesium hydroxide and aluminium hydroxide；Another kind of is phosphorus nitrogen system flame-retardant system.For inorganic hydrogen-oxygen
Compound system, its fire retardation is limited, and in order to reach the requirement of various codes and standards, usual addition is very high, sometime up to
The 80% of whole formula system, it is with a kind of side of filler due to inorganic hydroxide fire retardant and matrix resin and incompatible
Formula is scattered in matrix resin, and therefore, high filler loading capacity will substantially reduce the mechanical property of material.Sometimes for the inorganic hydrogen-oxygen of reduction
The addition of compound, also by the way of red phosphorus collaboration, but the application of red phosphorus can have the appearance color of material, Er Qiehong
The burning of phosphorus easily produces the toxic gases such as hydrogen phosphide and substantial amounts of smog, therefore this is nor optimal solution.
For phosphorus nitrogen system flame-retardant system, this is a kind of efficient flame-retardant system, has high flame retarding efficiency, addition is significantly
Reduce and high flame retardant can be realized, be the focus studied at present.Apply more at present, high polymerization degree APP
(APP) and organophosphorus compounds, high polymerization degree APP (APP) flame-retardant system, it belongs to a kind of Intumscent Flame Retardant System, by
Stronger in its anti-flammability, its addition will substantially reduce compared to inorganic hydroxide system, but APP is due to its surface hydrophilic spy
Property, and have certain water solubility, it is still incompatible with matrix material, therefore the power of the fire-retardant TPU elastomeric materials of APP systems
It is still relatively low to learn intensity, while easy migration precipitation, the albinism separated out is produced in cable surface, not only influences outward appearance,
The fire resistance of cable can be caused gradually reduce with precipitation.Further, since the presence of ammonium ion, the easy moisture absorptions of APP, one section
TPU cable surfaces reduce the insulating properties of material, great potential safety hazard be present with the presence of the globule after time；And organophosphor
Acid esters, some still have water solubility, although some are water-soluble small, the problem of overcoming the moisture absorption, its fire retardant mechanism belongs to cohesion
It is mutually fire-retardant, belong to non-expansion type, non-expansion type flame-retardant system easily forms drippage when catching fire, drawn for TPU elastomeric materials
Other combustibles are fired, molten drop can influence flame retardant effect, be extremely difficult to the requirement of standard.
Generally speaking, it is applied to major defect existing for the flame-retardant system of cable TPU materials at present：Poor fire, easily
The problems such as molten drop, the easy moisture absorption and migration albefaction.Therefore, it is necessary to research and develop the new new nothing applied to TPU elastomeric materials
Halogen flame-retardant system.
The content of the invention
The present invention develops a kind of electric wire halogen-free flameproof TPU elastic compositions, TPU elastic compositions tool
The features such as whetheing there is molten drop, high fire-retardance, resistance to migration, soft abrasion-resistant, oil resistant.It can be applied to high fire-retardances such as new-energy automobile, oil resistant, soft
The cable field of soft wear-resisting requirement.
Concrete technical scheme is as follows：
A kind of electric wire halogen-free flameproof TPU elastic compositions, by weight percentage, raw material composition include：
TPU matrix materials system 65~90%；
Phosphorus nitrogen composite flame retardant system 10~30%；
Auxiliary agent 1~5%；
Described phosphorus nitrogen composite flame retardant system includes diethyl hypo-aluminum orthophosphate and into carbon component, it is described into carbon component for not
Molten insoluble cross-linked polymer, shown in Crosslink structure such as following formula (I)：
The present invention relates to the exploitation of halogen-free flameproof TPU elastomers, using new low aqueous solubility diethyl hypo-aluminum orthophosphate, leads to
Special low aqueous solubility carbonific collaboration is crossed, the expansion type flame-retarding mechanism for TPU elastomers is formed, solves existing fire retardant
Be addition it is big, with the defects of TPU substrate compatibilities are poor, the easy moisture absorption forms the globule, precipitation easy to migrate and molten drop.By the diethyl
The novel flame-retardant system of hypo-aluminum orthophosphate and special carbonific composition can be well adapted for TPU elastomeric materials, obtaining property
Resistance to TPU cable material of the migration without molten drop of the excellent halogen-free flameproof of energy.
The present invention will be elaborated below.
The present invention is the invention for the purpose of solving various defects existing for existing halogen-free flameproof TPU elastomer cable materials
People has made extensive and intensive studies.For existing flame-retardant system the fire-retardant TPU elastomeric materials the problem of, investigate new
Flame-retardant system, this problem can be solved well into carbon component by as a result finding that the collaboration of diethyl hypo-aluminum orthophosphate is special.
Shown in the chemical constitution of diethyl hypo-aluminum orthophosphate such as following formula (II)：
Diethyl hypo-aluminum orthophosphate is characterized in phosphorus content height, good flame resistance, has higher temperature of initial decomposition, water-soluble
Low, resistance to migration is nonhygroscopic, and more application is in the engineering plastics such as nylon, PBT at present, particularly engineering plastics of fiberglass reinforced
In.Applied to TPU elastomeric materials, because water solubility is extremely low, is not in the moisture absorption and has the problem of globule, but due to being cohesion
Phase fire retardant mechanism so that TPU elastomeric materials easily drip again in burning, reduce fire resistance, can not pass through VW-1's
Flame-retardancy requirements, and reach flame-retardancy requirements by improving addition, the reduction of material property can be caused.
Inventor is had found by studying, and in the presence of diethyl hypo-aluminum orthophosphate, is added suitably into carbon component, this
When expansion type flame-retarding is become to the fire retardant mechanisms of TPU elastomeric materials, and in the presence of carbon-coating is expanded, the molten drop of material
It is under control, it is shown that good anti-flammability, it is possible to achieve VW-1 flame-retardancy requirements.
As the compound into charcoal component, usually polyhydroxy, such as the compound such as pentaerythrite, but these compounds by
In the presence of hydroxyl, although have it is good into carbon effect, it is water-soluble higher, asking for the moisture absorption occurs after being applied to polyurethane
Topic, the problems such as causing surfaces of tacky, water stain and insulating properties to reduce.
Study, found by two kinds of compounds of methylphosphonic acid and trihydroxyethyl isocyanuric ester in equivalent through inventor
Under the conditions of carry out polycondensation reaction, obtain heat cured carboxylate, the carboxylate be crushed to during application the powder of certain particle size range
End is described into carbon component.This into carbon component had into carbon effect, the concertedness having had with diethyl hypo-aluminum orthophosphate,
Phosphorus and nitrogen in molecular structure be present, the addition of diethyl hypo-aluminum orthophosphate can be reduced, with molecular configurational due to not depositing
It is nonhygroscopic in water suction group, it will not be formed water stain, surfaces of tacky will not be caused.
The preparation method into carbon component, it is specially：
(1) trihydroxyethyl isocyanuric ester and methylphosphonic acid of equivalent, under phase transfer catalyst effect, 150~
4~8h is reacted at 220 DEG C esterification prepolymer is made；
(2) vacuumize and be warming up to 260~280 DEG C, described esterification prepolymer obtains through condensation curing, then after crushed
Arrive.
In the preparation process of step (1) prepolymer, in order to accelerate reaction speed, it is necessary to using phase transfer catalyst.Make
To be preferred, described phase transfer catalyst is selected from quaternary ammonium salt, such as TBAB.
In step (2), high-temperature polycondensation solidification is carried out to prepolymer, it is necessary to high vacuum, hot conditions.Preferably, take out true
Sky to vacuum is not higher than 50KPa.The reaction can be carried out in an oven, can also be used high-power with agitating function
Kneader.
It is block by the fire retardant obtained after condensation curing, in order to be added in matrix material, it is also necessary to carry out powder
Broken processing, using mechanical crushing equipment, control the average grain diameter D50 of fire retardant<5μm.
Meanwhile also the water that esterification generates is drained in time.In order to prevent prepolymer from changing colour, reaction can be in nitrogen
Atmosphere is carried out.
Preferably, described diethyl hypo-aluminum orthophosphate is white powder, average grain diameter D50<5μm.
Described TPU matrix materials, are thermoplastic polyurethanes, you can to pass through the similar processing of thermoplastic macromolecule material
Method, such as extrusion, injection etc., have the material of polyurethane elastomer performance, can be molded use repeatedly, including polyester-type gathers again
In urethane, EU, polycarbonate polyurethane, polycaprolactone-type urethane, aliphatic anti-yellowing polyurethane extremely
Few one kind.
In the halogen-free flameproof TPU elastomeric materials of the present invention, in the physical property and the premise of fire resistance for not influenceing TPU
Under, other auxiliary agents, such as anti-mildew agent, antistatic additive, lubricant, anti-UV agent, antioxidant can be added.
Further preferably, by weight percentage, the raw material of electric wire halogen-free flameproof TPU elastic compositions
Composition includes：
TPU matrix materials 65~80%；
Phosphorus nitrogen composite flame retardant system 20~30%；
Auxiliary agent 1~5%；
In described phosphorus nitrogen composite flame retardant system, diethyl hypo-aluminum orthophosphate and the mass ratio into carbon component are 1.15~5：1.
Still further preferably, in the component into carbon, nitrogen content 10.4%, phosphorus content 11.5%.Through further
Application test find, the content of nitrogen and phosphorous into carbon component and diethyl hypo-aluminum orthophosphate compounding after be applied to TPU elastomers in,
More preferably flame retardant effect can be obtained.
Preparation method the invention also discloses described electric wire with halogen-free flameproof TPU elastic compositions, including：
After each component is well mixed, obtained after double screw extruder is extruded, is granulated；
Described halogen-free flameproof TPU elastic compositions complete extruding pelletization in double screw extruder, due to fire retardant
It is heat-sensitive substance, it is necessary to control processing temperature, the maximum temperature of twin-screw is no more than 230 DEG C, preferably below 220 DEG C.
The composition completes extruding pelletization in double screw extruder, there is certain requirement to extrusion equipment, double screw extruder
Draw ratio is not less than 44, preferably not less than 48, more preferably 52.The composition is completed extrusion in double screw extruder and made
Grain, can use water cooling bracing mode, water ring pelletizing or underwater cutpellet.
The halogen-free flameproof TPU elastic compositions prepared according to the above method, can be as the sheath material or exhausted of cable
Edge material, cable is prepared on existing cable apparatus by extruding-out process.
Compared with prior art, the invention has the advantages that：
The invention provides a kind of electric wire halogen-free flameproof TPU elastic compositions, comprising by diethyl hypophosphorous acid
The novel flame-retardant system of aluminium and special carbonific composition, the TPU elastic compositions have without molten drop, high fire-retardance, resistance to moved
The features such as shifting, soft abrasion-resistant, oil resistant.VW-1 flame-retardant standard is can reach using it as cable material prepared by raw material.
Embodiment
Embodiment 1
(1) mixture of halogen-free flameproof TPU systems
Drying TPU in advance, stirring addition in machine in height, (unless otherwise stated, the proportioning in the present invention is weight by proportioning
Percentage) TPU, compounding flame retardant and the other auxiliary agents that weigh up in advance, start high-speed stirred, stir 10min, complete Halogen resistance
Fire the mixture of TPU systems, discharging.
(2) extruding pelletization of material
Each area's temperature setting of double screw extruder in predetermined temperature (210 DEG C of spiro rod plasticizing section maximum temperature), temperature is treated
After stable 20min, the uniform halogen-free flameproof TPU systems of mixture are added from hopper, starts main frame and feeding machine, completes material
Extruding pelletization.The material for having made grain is sent into feed bin by blast system, and dries.
(3) application of material and test
The material dried is molded by injection machine the standard specimen of various testing standard defineds, and carries out correlation
The test of material property.Qualified cable is prepared on electric wire guy-line equipment, samples and carries out the electric wire of correlation
Test.It is primarily upon following performance indications：
Fire-retardant and melt-dropping property
According to cable material VW-1 testing standard test, and pay close attention to molten drop.
Resistance to migration experiment
The fire-retardant TPU cables sample of certain length is put into climatic chamber, 85 DEG C of temperature, relative humidity are set
85%, the state of specimen surface of the visual observations after 168 hours.
It is as follows into the preparation technology of carbon component in the present embodiment：
In 1L flask, 522 grams of (2 moles) trihydroxyethyl isocyanuric esters are added, leads to nitrogen protection, is heated to 150
DEG C cause trihydroxyethyl isocyanuric ester fusing, then add 2.7 grams of TBABs and 288g (3 moles) methylphosphonic acid,
Strong stirring mixture, heated within 6 hours from 150 DEG C and be raised to 210 DEG C, the water in course of reaction is discharged, and condense metering,
210 DEG C are incubated 1 hour, are cooled to 150 DEG C, and melt is discharged to a metal tray, and a kind of faint yellow hair is obtained after melt cooling
Crisp solids, for melting range from 100~120 DEG C, residual acid value is 7 milligrams of KOH/g.
Prepolymer is placed into vacuum drying oven together with pallet, vacuumized, vacuum keeps 50KPa, is heated to 270
DEG C, kept for 2 hours, complete solidification, cooling discharge.Crushing material to average grain diameter D50<5 microns stand-by.
Through analysis：
It is manufactured in the present embodiment to be into carbon component, phosphorus content：10.5%, nitrogen content is：10.1% (phosphorus, nitrogen content are
Calculated value in actual measured value, slightly below specification), solubility<0.1%, 1% weightless decomposition temperature is 320 DEG C.
Unless otherwise instructed, product manufactured in the present embodiment is used into carbon component in following embodiment.
Each material and proportioning are shown in Table 1 in embodiment, and the performance test results of resulting material are shown in Table 1.
Embodiment 2
Implementation process is same as Example 1, except diethyl hypo-aluminum orthophosphate and outer, the raising diethyl into the proportioning adjustment of carbon component
The proportioning of base hypophosphorous acid, keep flame-retardant system total amount constant.Other materials and proportioning are shown in Table 1, and resulting material the results are shown in Table
1。
Embodiment 3
Implementation process is same as Example 1, except diethyl hypo-aluminum orthophosphate and into carbon component proportioning adjustment in addition to, improve into carbon
The proportioning of component, keep flame-retardant system total amount constant.Other materials and proportioning are shown in Table 1, and resulting material the results are shown in Table 1.
Embodiment 4
Implementation process is same as Example 1, in addition to the proportioning adjustment of formula, reduces flame-retardant system sum-rate.Other things
Material and proportioning are shown in Table 1, and resulting material the results are shown in Table 1.
Embodiment 5
Implementation process is same as Example 1, in addition to the proportioning adjustment of formula, improves flame-retardant system sum-rate.Other things
Material and proportioning are shown in Table 1, and resulting material the results are shown in Table 1.
Comparative example 1
Implementation process is same as Example 1, in addition to without using into carbon component.Other materials and proportioning are shown in Table 1, resulting
Material the results are shown in Table 1.
Comparative example 2
Implementation process is same as Example 1, in addition to without using diethyl hypo-aluminum orthophosphate.Other materials and proportioning are shown in Table 1,
Resulting material the results are shown in Table 1.
Comparative example 3
Implementation process is same as Example 1, in addition to only using APP, without using diethyl hypo-aluminum orthophosphate and into carbon
Component.Other materials and proportioning are shown in Table 1, and resulting material the results are shown in Table 1.
Comparative example 4
Implementation process is same as Example 1, except only use aromatic phosphoric acid ester in addition to, without using diethyl hypo-aluminum orthophosphate and into
Carbon component.Other materials and proportioning are shown in Table 1, and resulting material the results are shown in Table 1.Table 1
。
Claims (10)
- A kind of 1. electric wire halogen-free flameproof TPU elastic compositions, it is characterised in that by weight percentage, raw material group Into including：TPU matrix materials 65~90%；Phosphorus nitrogen composite flame retardant system 10~30%；Auxiliary agent 1~5%；Described phosphorus nitrogen composite flame retardant system includes diethyl hypo-aluminum orthophosphate and into carbon component, it is described into carbon component for it is insoluble not Molten cross-linked polymer, shown in Crosslink structure such as following formula (I)：
- 2. electric wire according to claim 1 halogen-free flameproof TPU elastic compositions, it is characterised in that described In phosphorus nitrogen composite flame retardant system, by weight percentage, raw material composition includes：50~90wt% of diethyl hypo-aluminum orthophosphate；Into 10~50wt% of carbon component.
- 3. electric wire according to claim 1 halogen-free flameproof TPU elastic compositions, it is characterised in that described Into carbon component using the trihydroxyethyl isocyanuric ester of equivalent and methylphosphonic acid as raw material, it is prepared after polycondensation reaction.
- 4. electric wire according to claim 3 halogen-free flameproof TPU elastic compositions, it is characterised in that it is described into The preparation method of carbon component, it is specially：(1) trihydroxyethyl isocyanuric ester and methylphosphonic acid of equivalent, under phase transfer catalyst effect, at 150~220 DEG C Esterification prepolymer is made in 4~8h of lower reaction；(2) vacuumize and be warming up to 260~280 DEG C, described esterification prepolymer obtains through condensation curing, then after crushed.
- 5. electric wire according to claim 4 halogen-free flameproof TPU elastic compositions, it is characterised in that step (1) In, described phase transfer catalyst is selected from quaternary ammonium salt.
- 6. electric wire according to claim 4 halogen-free flameproof TPU elastic compositions, it is characterised in that step (2) In, it is evacuated to vacuum and is not higher than 50KPa；It is crushed to average grain diameter D50<5μm.
- 7. electric wire according to claim 1 halogen-free flameproof TPU elastic compositions, it is characterised in that described TPU matrix materials are selected from PAUR, EU, polycarbonate polyurethane, polycaprolactone-type urethane, fat At least one of fat race anti-yellowing polyurethane.
- 8. electric wire according to claim 1 halogen-free flameproof TPU elastic compositions, it is characterised in that described Diethyl hypo-aluminum orthophosphate, average grain diameter D50<5μm.
- 9. according to any described electric wire halogen-free flameproof TPU elastic compositions of claim 1~8, it is characterised in that By weight percentage, raw material composition includes：TPU matrix materials system 65~80%；Phosphorus nitrogen composite flame retardant system 20~30%；Auxiliary agent 1~5%；In described phosphorus nitrogen composite flame retardant system, diethyl hypo-aluminum orthophosphate and the mass ratio into carbon component are 1.15~5：1.
- A kind of 10. preparation according to any described electric wire halogen-free flameproof TPU elastic compositions of claim 1~9 Method, it is characterised in that including：After each component is well mixed, obtained after double screw extruder is extruded, is granulated；The extrusion temperature of the double screw extruder is not higher than 230 DEG C.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401275A (en) * | 2018-09-11 | 2019-03-01 | 苏州市雄林新材料科技有限公司 | A kind of high fire-retardance softness TPU film and preparation method thereof |
| CN109762020A (en) * | 2019-01-24 | 2019-05-17 | 重庆大学 | A kind of transparency liquid fire retardant, preparation method and applications |
| CN113510990A (en) * | 2020-09-29 | 2021-10-19 | 东莞市元普塑胶科技有限公司 | Artificial leather with artificial leather produced and prepared by supercritical nitrogen foaming technology |
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| CN103923347A (en) * | 2014-04-01 | 2014-07-16 | 常州大学 | Triazine ring hexaphenyl phosphate-containing flame retardant and preparation method thereof |
| CN105175735A (en) * | 2015-07-24 | 2015-12-23 | 常州大学 | Branched phosphorus-nitrogen type flame retardant and preparation method therefor |
| WO2017032659A1 (en) * | 2015-08-21 | 2017-03-02 | Basf Se | Flame-retardant thermoplastic polyurethane |
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| CN109401275A (en) * | 2018-09-11 | 2019-03-01 | 苏州市雄林新材料科技有限公司 | A kind of high fire-retardance softness TPU film and preparation method thereof |
| CN109762020A (en) * | 2019-01-24 | 2019-05-17 | 重庆大学 | A kind of transparency liquid fire retardant, preparation method and applications |
| CN113510990A (en) * | 2020-09-29 | 2021-10-19 | 东莞市元普塑胶科技有限公司 | Artificial leather with artificial leather produced and prepared by supercritical nitrogen foaming technology |
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