CN107090120A - A kind of ATH graphenes cooperative flame retardant EVA and preparation method thereof - Google Patents
A kind of ATH graphenes cooperative flame retardant EVA and preparation method thereof Download PDFInfo
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- CN107090120A CN107090120A CN201710474420.7A CN201710474420A CN107090120A CN 107090120 A CN107090120 A CN 107090120A CN 201710474420 A CN201710474420 A CN 201710474420A CN 107090120 A CN107090120 A CN 107090120A
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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
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2312/00—Crosslinking
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- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Carbon And Carbon Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention belongs to fire-retardant EVA material field, more particularly to ATH/ graphenes cooperative flame retardant EVA material and preparation method thereof.The fire proofing is grafted EVA, modified aluminium hydroxide, functionalization graphene, antioxidant, plasticizer, crosslinking agent and constituted by EVA resin, maleic anhydride.A kind of ATH/ graphenes cooperative flame retardant EVA material formula of the present invention is reasonable, metal hydroxide combustion inhibitor addition is few, good dispersion, and the fire resistance for meeting material is good, oxygen index (OI) is high, the burnings of UL 94 grade can reach V 0, and preferably, preparation method is easy for the mechanical property of material, easily realize, operating cost is low, and the raw material being related to all is easy to get easy processing, it is adaptable to the large-scale production in industry.
Description
Technical field
The invention belongs to fire-retardant EVA material field, more particularly to ATH/ graphenes cooperative flame retardant EVA material and its preparation side
Method.
Background technology
Ethylene-vinyl acetate copolymer (EVA) has high pliability, impact resistance, good, hot close with filler intermiscibility
Sealing property is good and is widely used in the fields such as electric wire, packaging film, PUR, toy.But EVA belongs to combustible material,
Easily trigger fire during use, the property and personal safety to the people have very big threat, therefore limit it and answer
Use field.To improve EVA fire resistance, it is a kind of universal fire-retardant mode that fire retardant is added into EVA.Traditional halogen system resistance
Although combustion agent can bring material good fire resistance, can be produced during burning substantial amounts of smog and it is poisonous,
Mordant hydrogen halide, does not meet the requirement of environmentally friendly development, has been prohibited from using.Intumescent Retardant System energy
The good fire resistance of material is enough provided, but is due to itself and the poor compatibility of polymer, easily reunion, poor water resistance, serious drop
The problems such as physical and mechanical properties of low material, could not also efficiently solve, and limit it and be widely applied.Metal hydroxides is not
Volatilize, do not produce toxic and harmful gas, it is considered to be most promising fire retardant, favored by people.But metallic hydrogen
Oxide, which is used for fire retardant polyolefin, will make fire resistance reach certain requirement, and addition is so big generally more than 60%
Addition make the processing characteristics and mechanical property of composite by serious influence.Finding suitable retardant synergist makes it
With metal hydroxides occur cooperative effect improve flame retarding efficiency, reduce addition, with improve composite processing characteristics and
Mechanical property is present popular research direction.
Graphene is by carbon atom sp2Hybridized orbit constitutes the new carbon of hexangle type honeycomb crystal lattice, because its is excellent
Different performance has started the upsurge of research.Graphene is tentatively shown in the application study result of fire-retardant aspect, relative to other resistances
Combustion agent only needs minimal amount of graphene just to play relatively good fire resistance.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of addition of metal hydroxide combustion inhibitor
Amount is few, good dispersion, ATH/ graphene cooperative flame retardant EVA materials of anti-flammability and excellent in mechanical performance and preparation method thereof.
A kind of ATH/ graphenes cooperative flame retardant EVA material, its composition is according to the number of parts by weight：
Specifically, VA contents are 10-35% in EVA resin described above.
Specifically, maleic anhydride described above grafting EVA grafting rates are 1.5%.Exxon Mobil can be selected
The high grafting rate EVA-g-MAH of company；It can certainly be prepared from existing method.
Specifically, modified aluminium hydroxide described above is prepared via a method which：Aluminium hydroxide is dry in 100-110 DEG C
Dry 5-10h, is subsequently added into distilled water and obtains material, and the mass ratio of aluminium hydroxide and distilled water is (4-3)：(2-1)；Then by thing
Material, which is put into thermostat water bath, is heated to 40-50 DEG C, and constant temperature is stirred, and the speed of stirring is 4500-5500r/min；Then add
Titanate coupling agent continues to stir 1-3h in 4000-4500r/min, and titanate coupling agent addition is the 5- of aluminium hydroxide quality
10%, suction filtration after emulsification, in 100-110 DEG C of dry 3-5h, grinding obtains modified aluminium hydroxide after sieving.
Specifically, the particle diameter of modified aluminium hydroxide described above is 1-5um.
Specifically, functionalization graphene described above is prepared via a method which：(1) graphene carbon is placed in volume ratio
3:In 1 concentrated sulfuric acid and the mixed acid solution of concentrated nitric acid, under supersonic oscillations and mechanical agitation, 24h is handled, then with substantial amounts of
Deionized water is cleaned to neutrality, with liquor potassic permanganate oxidation processes 12h, is then cleaned with substantial amounts of deionized water into
Property, it is dried in vacuo 24-36h at 80 DEG C；(2) product dried in (1) is taken, appropriate dioxane is added, ultrasonic 1-2h, then
Nitrogen is protected again, stirs 1-2h under the conditions of ice-water bath, mixing speed is 300-500r/min, is then added and graphene mass ratio
For (5-1)：After 1 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), stirring and dissolving, add and account for graphite
Alkene quality 5-10% silane resin acceptor kh-550, stirs 3-5h, mixing speed is 500-550r/min；(3) after reaction terminates,
Centrifugation removes reaction solution, centrifugation after being washed with tetrahydrofuran 3-5 times, and the product after centrifugation is dried in vacuo into 24- at 60 DEG C
36h, produces functionalization graphene.
Specifically, antioxidant described above is that hindered phenol antioxygen 1010 presses quality with phosphite ester kind antioxidant 168
Than for (1-3):The compound of (3-1) composition.
Specifically, plasticizer described above is epoxidized soybean oil, DOTP, dibutyl phthalate
In one kind.
Specifically, crosslinking agent described above is one kind in cumyl peroxide, benzoyl peroxide.
Further, a kind of preparation method of ATH/ graphenes cooperative flame retardant EVA material, specifically includes following steps：
(1) EVA resin, maleic anhydride are grafted EVA, modified aluminium hydroxide, functionalization graphene, antioxidant, plasticizer
Put into according to parts by weight to mixer mixing, mixing time is 10-20min, melting temperature is 100 DEG C -120 DEG C, and rotating speed is 50-
100r/min；
(2) addition crosslinking agent continues to knead in the material after being kneaded to step (1), and mixing time is 20-30min, mixing
Temperature is 110 DEG C -115 DEG C, and rotating speed is 50-120r/min；
(3) mixed material for kneading step (2) is poured into comminutor and granulated, and produces ATH/ graphene cooperative flame retardants
EVA material.
The device have the advantages that：
(1) a kind of ATH/ graphenes cooperative flame retardant EVA material of the invention, from the Malaysia that higher grafting rate is 1.5%
Acid anhydrides is grafted EVA resin, not only with excellent viscosity, and can increase compatibility of each material in EVA resin；Hydroxide
Aluminium surface is modified, and its water imbibition, oil factor are on a declining curve, dispersiveness, raising is thermally decomposed to yield, with titanate coupling agent
Blending and modifying, obtains the modified aluminium hydroxide powder that particle diameter is 1-5um, by being grafted the association of EVA resin well with maleic anhydride
Same-action, makes powder not reunite in resin, improves the dispersiveness of aluminium hydroxide powder, and mechanical property has larger improvement, table
Seeing performance is substantially strengthened, so as to effectively increase the fire resistance of the present invention.
(2) a kind of ATH/ graphenes cooperative flame retardant EVA material of the invention, a large amount of activity are contained on the surface of modified graphene
Group, improves the interface binding power of system, so as to strengthen the bond strength of system；The addition of DOPD modified graphenes, is conducive to
Improve dispersiveness of the modified aluminium hydroxide in EVA resin, reduce the addition of aluminium hydroxide powder；Meanwhile, in modified graphite
Under the synergy of alkene, the crosslink density of system and softening layer are further improved after EVA composite initial breakdowns, can be in material
Inorganic charring layer is generated during material burning, oxygen barrier film is formed, so as to suppress burning, the oxygen index (OI) of flame-retardant system is greatly improved.
(3) a kind of ATH/ graphenes cooperative flame retardant EVA material of the invention formula is reasonable, fire resistance and mechanical property
Good, preparation method is easy, easily realizes, operating cost is low, and the raw material being related to all is easy to get easy processing, it is adaptable in industry
Large-scale production.
Embodiment
Presently in connection with embodiment, the present invention is further detailed explanation.
Embodiment 1
A kind of ATH/ graphenes cooperative flame retardant EVA material, its composition is according to the number of parts by weight：
VA contents are 25% in described EVA resin.
Described maleic anhydride grafting EVA grafting rates are 1.5%.
Described modified aluminium hydroxide is prepared via a method which：By aluminium hydroxide in 110 DEG C of dry 5-10h, then add
Enter distilled water and obtain material, the mass ratio of aluminium hydroxide and distilled water is 3：2；Then material is put into thermostat water bath and heated
To 50 DEG C, constant temperature is stirred, and the speed of stirring is 4500r/min；Then titanate coupling agent is added to continue to stir in 4000r/min
2h, titanate coupling agent addition is the 10% of aluminium hydroxide quality, suction filtration after emulsification, in after 110 DEG C of dry 5h, grinding sieving
Obtain the modified aluminium hydroxide that particle diameter is 1um.
Described functionalization graphene is prepared via a method which：(1) graphene carbon is placed in volume ratio 3:1 concentrated sulfuric acid
In the mixed acid solution of concentrated nitric acid, under supersonic oscillations and mechanical agitation, 24h is handled, it is then clear with substantial amounts of deionized water
Neutrality is washed till, with liquor potassic permanganate oxidation processes 12h, then cleans to neutrality, 80 DEG C true with substantial amounts of deionized water
Sky dries 36h；(2) product dried in (1) is taken, appropriate dioxane, ultrasonic 2h, then nitrogen protection, frozen water again is added
2h is stirred under the conditions of bath, mixing speed is 300r/min, it is 3 then to add with graphene mass ratio：19,10- dihydro-9-oxies
After miscellaneous -10- phospho hetero phenanthrenes -10- oxides, stirring and dissolving, the silane resin acceptor kh-550 for accounting for graphene quality 10% is added, is stirred
3h is mixed, mixing speed is 550r/min；(3) after reaction terminates, centrifugation removes reaction solution, is washed and is centrifuged after 4 times with tetrahydrofuran,
Product after centrifugation is dried in vacuo 24h at 60 DEG C, functionalization graphene is produced.
Described antioxidant is hindered phenol antioxygen 1010 and phosphite ester kind antioxidant 168 is 1 in mass ratio:3 compositions
Compound.
A kind of preparation method of ATH/ graphenes cooperative flame retardant EVA material, specifically includes following steps：
(1) EVA resin, maleic anhydride are grafted EVA, modified aluminium hydroxide, functionalization graphene, antioxidant, plasticizer
Put into according to parts by weight to mixer mixing, mixing time is 10min, melting temperature is 120 DEG C, and rotating speed is 50r/min；
(2) addition crosslinking agent continues to knead in the material after being kneaded to step (1), and mixing time is 30min, melting temperature
For 110 DEG C DEG C, rotating speed is 120r/min；
(3) mixed material for kneading step (2) is poured into comminutor and granulated, and produces ATH/ graphene cooperative flame retardants
EVA material.
Embodiment 2-6 is as shown in table 1, comparative example 1-5 is substantially the same manner as Example 1, and difference is table 2.
Table 1
Table 2
Performance test such as table 3
Table 3
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (10)
1. a kind of ATH/ graphenes cooperative flame retardant EVA material, it is characterised in that：The composition of described fire proofing is according to parts by weight
Number is calculated as：
40 ~ 50 parts of EVA resin
Maleic anhydride is grafted 10 ~ 25 parts of EVA
30 ~ 40 parts of modified aluminium hydroxide
0.1 ~ 3 part of functionalization graphene
1 ~ 3 part of antioxidant
1 ~ 5 part of plasticizer
0.3 ~ 0.8 part of crosslinking agent.
2. a kind of ATH/ graphenes cooperative flame retardant EVA material as claimed in claim 1, it is characterised in that：Described EVA resin
Middle VA contents are 10-35%.
3. a kind of ATH/ graphenes cooperative flame retardant EVA material as claimed in claim 1, it is characterised in that：Described maleic acid
Acid anhydride grafting EVA grafting rates are 1.5%.
4. a kind of ATH/ graphenes cooperative flame retardant EVA material as claimed in claim 1, it is characterised in that：Described modification hydrogen
Aluminum oxide is prepared via a method which：By aluminium hydroxide in 100-110 DEG C of dry 5-10 h, it is subsequently added into distilled water and obtains thing
Expect, the mass ratio of aluminium hydroxide and distilled water is（4-3）：（2-1）；Then material is put into thermostat water bath and is heated to 40-
50 DEG C, constant temperature stirring, the speed of stirring is 4500-5500r/min；Then titanate coupling agent is added in 4000-4500r/min
Continue to stir 1-3h, titanate coupling agent addition is the 5-10% of aluminium hydroxide quality, and suction filtration after emulsification is dry in 100-110 DEG C
Dry 3-5h, modified aluminium hydroxide is obtained after grinding sieving.
5. a kind of ATH/ graphenes cooperative flame retardant EVA material as described in claim 1 or 4, it is characterised in that：Described modification
The particle diameter of aluminium hydroxide is 1-5um.
6. a kind of ATH/ graphenes cooperative flame retardant EVA material as claimed in claim 1, it is characterised in that：Described functionalization
Graphene is prepared via a method which：（1）Graphene carbon is placed in volume ratio 3:1 concentrated sulfuric acid and the mixed acid solution of concentrated nitric acid
In, under supersonic oscillations and mechanical agitation, 24h is handled, is then cleaned with substantial amounts of deionized water to neutrality, with permanganic acid
Potassium solution oxidation processes 12h, is then cleaned with substantial amounts of deionized water and is dried in vacuo 24-36h to neutrality, 80 DEG C；（2）Take
（1）The product of middle drying, the appropriate dioxane of addition, ultrasonic 1-2h, then nitrogen is protected again, and 1- is stirred under the conditions of ice-water bath
2h, mixing speed is 300-500 r/min, and then addition is with graphene mass ratio（5-1）：19,10- dihydro-9-oxies are miscellaneous-
After 10- phospho hetero phenanthrene -10- oxides, stirring and dissolving, the silane resin acceptor kh-550 for accounting for graphene quality 5-10% is added, is stirred
3-5h, mixing speed is 500-550 r/min；（3）After reaction terminates, centrifugation removes reaction solution, is washed 3-5 times with tetrahydrofuran
After centrifuge, the product after centrifugation is dried in vacuo 24-36h at 60 DEG C, functionalization graphene is produced.
7. a kind of ATH/ graphenes cooperative flame retardant EVA material as claimed in claim 1, it is characterised in that：Described antioxidant
It is in mass ratio with phosphite ester kind antioxidant 168 for hindered phenol antioxygen 1010（1-3）:（3-1）The compound of composition.
8. a kind of ATH/ graphenes cooperative flame retardant EVA material as claimed in claim 1, it is characterised in that：Described plasticizer
For one kind in epoxidized soybean oil, DOTP, dibutyl phthalate.
9. a kind of ATH/ graphenes cooperative flame retardant EVA material as claimed in claim 1, it is characterised in that：Described crosslinking agent
For one kind in cumyl peroxide, benzoyl peroxide.
10. a kind of preparation method of ATH/ graphene cooperative flame retardant EVA materials as described in claim 1-9 is any, its feature
It is：Specifically include following steps：
（1）By EVA resin, maleic anhydride grafting EVA, modified aluminium hydroxide, functionalization graphene, antioxidant, plasticizer according to
Parts by weight are put into mixer mixing, and mixing time is 10-20min, and melting temperature is 100 DEG C -120 DEG C, and rotating speed is 50-
100 r/min；
（2）To step（1）Add crosslinking agent in material after mixing to continue to knead, mixing time is 20-30min, melting temperature
For 110 DEG C -115 DEG C, rotating speed is 50-120 r/min；
（3）By step（2）The mixed material kneaded is poured into comminutor and granulated, and produces ATH/ graphene cooperative flame retardant EVA materials
Material.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975761A (en) * | 2018-07-20 | 2018-12-11 | 浙江农林大学 | A kind of manufacturing process of high flame retardant charcoal mould plate |
| CN109517219A (en) * | 2018-11-09 | 2019-03-26 | 安徽江淮汽车集团股份有限公司 | A kind of composite flame-retardant agent and preparation method thereof |
| CN109734990A (en) * | 2018-12-28 | 2019-05-10 | 北京理工大学 | Two-dimensional material nano modification flame-proof ethylene-vinyl acetate copolymer method |
| CN110317389A (en) * | 2019-08-10 | 2019-10-11 | 衡水中铁建土工材料制造有限公司 | A kind of composite flame-proof anchor bar of waterproof plate in tunnels |
| CN111234537A (en) * | 2020-02-24 | 2020-06-05 | 哈尔滨理工大学 | Graphene anti-dripping flame-retardant synergist and preparation method thereof |
| CN112143032A (en) * | 2019-06-28 | 2020-12-29 | 合肥杰事杰新材料股份有限公司 | Modified aluminum hydroxide, flame-retardant polyvinyl chloride material and preparation method thereof |
| CN115489171A (en) * | 2022-08-26 | 2022-12-20 | 柔怡美(厦门)卫生材料有限公司 | Super-soft and creep-resistant elastic composite material |
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| CN106279955A (en) * | 2016-08-18 | 2017-01-04 | 江苏上上电缆集团有限公司 | A kind of high-flame-retardance low-smoke halogen-free cable material of graphene-containing and preparation method thereof |
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| CN104098816A (en) * | 2013-04-09 | 2014-10-15 | 合肥杰事杰新材料股份有限公司 | Polyolefin/graphene nanocomposite and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975761A (en) * | 2018-07-20 | 2018-12-11 | 浙江农林大学 | A kind of manufacturing process of high flame retardant charcoal mould plate |
| CN109517219A (en) * | 2018-11-09 | 2019-03-26 | 安徽江淮汽车集团股份有限公司 | A kind of composite flame-retardant agent and preparation method thereof |
| CN109734990A (en) * | 2018-12-28 | 2019-05-10 | 北京理工大学 | Two-dimensional material nano modification flame-proof ethylene-vinyl acetate copolymer method |
| CN112143032A (en) * | 2019-06-28 | 2020-12-29 | 合肥杰事杰新材料股份有限公司 | Modified aluminum hydroxide, flame-retardant polyvinyl chloride material and preparation method thereof |
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| CN110317389A (en) * | 2019-08-10 | 2019-10-11 | 衡水中铁建土工材料制造有限公司 | A kind of composite flame-proof anchor bar of waterproof plate in tunnels |
| CN111234537A (en) * | 2020-02-24 | 2020-06-05 | 哈尔滨理工大学 | Graphene anti-dripping flame-retardant synergist and preparation method thereof |
| CN111234537B (en) * | 2020-02-24 | 2021-09-24 | 哈尔滨理工大学 | Graphene anti-dripping flame-retardant synergist and preparation method thereof |
| CN115489171A (en) * | 2022-08-26 | 2022-12-20 | 柔怡美(厦门)卫生材料有限公司 | Super-soft and creep-resistant elastic composite material |
| CN115489171B (en) * | 2022-08-26 | 2024-04-09 | 柔怡美(福建)实业有限公司 | Super-soft creep-resistant elastic composite material |
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| CN107090120B (en) | 2021-02-05 |
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