CN108276624A - A kind of preparation that graphene adulterates anti-impact modifier and the application in PVC matrix - Google Patents
A kind of preparation that graphene adulterates anti-impact modifier and the application in PVC matrix Download PDFInfo
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- CN108276624A CN108276624A CN201810153296.9A CN201810153296A CN108276624A CN 108276624 A CN108276624 A CN 108276624A CN 201810153296 A CN201810153296 A CN 201810153296A CN 108276624 A CN108276624 A CN 108276624A
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- impact modifier
- graphene oxide
- micelle
- polymethyl methacrylate
- graphene
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 37
- 239000004609 Impact Modifier Substances 0.000 title claims abstract description 26
- 239000011159 matrix material Substances 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 20
- 229920000126 latex Polymers 0.000 claims abstract description 18
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 18
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 17
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000005253 cladding Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 238000011065 in-situ storage Methods 0.000 claims abstract description 3
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 23
- 239000000693 micelle Substances 0.000 claims description 21
- 239000004816 latex Substances 0.000 claims description 15
- 239000006185 dispersion Substances 0.000 claims description 14
- 150000002978 peroxides Chemical class 0.000 claims description 14
- 239000000178 monomer Substances 0.000 claims description 11
- 229920000459 Nitrile rubber Polymers 0.000 claims description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 10
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 239000011593 sulfur Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 239000012071 phase Substances 0.000 claims description 6
- 239000008346 aqueous phase Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000002687 intercalation Effects 0.000 claims description 5
- 238000009830 intercalation Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- RNPXCFINMKSQPQ-UHFFFAOYSA-N dicetyl hydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCOP(O)(=O)OCCCCCCCCCCCCCCCC RNPXCFINMKSQPQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000035939 shock Effects 0.000 abstract description 7
- 230000004888 barrier function Effects 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 abstract description 2
- 239000002105 nanoparticle Substances 0.000 abstract description 2
- 239000005022 packaging material Substances 0.000 abstract description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 13
- 239000004014 plasticizer Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 description 3
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- -1 graphite alkenes Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
- C08L9/04—Latex
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
-
- 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
-
- 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
- C08L2205/04—Polymer mixtures characterised by other features containing interpenetrating networks
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The preparation and the application in PVC matrix for adulterating anti-impact modifier the present invention relates to a kind of graphene, a kind of anti-impact modifier, graphene oxide is adulterated in rubber latex, then by methyl methacrylate addition system, in-situ polymerization obtains the composite material of polymethyl methacrylate cladding or polymethyl methacrylate inierpeneirating network structure.It is an advantage of the invention that：New type functional anti-impact modifier can not only make PVC Type of Collective object materials have good shock resistance, and the anti-impact modifier has the special attribute of nano-particle, as high intensity, high-modulus, high tenacity, high-fire resistance, high conductivity, anti-flammability and to oil and gas high barrier the advantages that.The anti-impact modifier is expected to be used for more demanding packaging material for food, part etc. in outdoor building materials such as window frame, shutter and electronic instrument shell, aircraft storehouse.
Description
Technical field
The preparation and the application in PVC matrix for adulterating anti-impact modifier the present invention relates to a kind of graphene, belong to PVC
Processing technique field.
Background technology
PVC is that a kind of yield is big, resins for universal use of high comprehensive performance, and product has good mechanics and electrical property
Can, there is anti-flammability, the transparency, chemical resistance.But PVC cannot be extensively using structural material be made, mainly as hard product
It is poor by its erosion-resisting characteristics, being easy that thermal deformation and thermal stability are low, processing performance is bad etc., factors are limited.In order to improve PVC
These the shortcomings of, usually require that a small amount of processing aid (l-3phr) is added in process of production, be especially used in plasticizer and contain
It measures in less hard PVC article formulations.Most common processing aid is esters of acrylic acid (ACR), is methyl methacrylate
With the copolymer of the monomers such as ethyl acrylate, butyl acrylate, butyl methacrylate.The 1950s is by U.S. Rohm＆
Haas companies develop, and are more and more widely used as the PVC good auxiliary agents being modified.It is big it to be roughly divided into two according to its effect
Class：Modifier and impact modifier.Wherein, impact modifier (ACR) is a kind of with butyl polyacrylate (PBA) crosslinking
Body is core, outer layer grafting polymethyl methacrylate (PMMA) and the copolymer with nucleocapsid.Shock resistance type ACR has excellent
Different increasing tougheness, good heat resistance, molding processibility and the product transparency are good and can be in very wide use temperature range
The advantages that keeping best shock resistance, is paid close attention to by people.
However the shortcomings that tradition impact resistance ACR, is：First, ignition-proof element and ingredient have been typically free of inside component；
The addition of second, usual anti-impact modifier ACR can reduce its tensile strength, hardness while improving material impact intensity
Etc. performances.
Invention content
In order to overcome the shortcomings of ACR does not have anti-flammability, reduces tensile strength of material, hardness in the prior art, the present invention
A kind of anti-impact modifier is provided, the manufacture field of PVC is can be used for.The advantages of material is：The anti-impact modifier is filled
PVC material not only there is good shock resistance, but also have special functionality, be mainly manifested in have and receive
The special attribute of some of rice corpuscles, such as fire-retardant, high intensity, high-modulus, high tenacity, high-fire resistance, high conductivity and to oil and
The advantages that high barrier of gas.
The modifying agent of the present invention is by the graphite alkenes material with fire retardation, soft crosslinking micelle nucleome, vitrifying
The high shell three parts composition of transition temperature.This three parts plays the role of the improvement of PVC performances vital.Graphene portion
Point, itself excellent flame retardant property can optimize the fire safety evaluating performance of PVC nanocomposites, in addition can be to the height of material
Remarkable effect is played in the promotion of intensity, high-modulus, anti-flammability etc.；Soft crosslinking micelle shell can absorb impact energy,
The shock resistance of PVC material can be increased；The high shell of glass transition temperature has connection PVC matrix and micelle particle, increasing
The effects that appearance.
It is an advantage of the invention that：It is good that new type functional anti-impact modifier can not only be such that PVC Type of Collective object materials have
Good shock resistance, and the anti-impact modifier has the special attribute of nano-particle, such as high intensity, high-modulus, height
Toughness, high-fire resistance, high conductivity, anti-flammability and to oil and gas high barrier the advantages that.The anti-impact modifier has
It hopes and is used for more demanding packaging material for food, outdoor building materials such as window frame, shutter etc. and electronic instrument shell, aircraft
Part etc. in storehouse.
The technical scheme is that：
A kind of graphene doping anti-impact modifier, adulterates graphene oxide, then by metering system in rubber latex
In sour methyl esters addition system, in-situ polymerization obtains polymethyl methacrylate cladding or polymethyl methacrylate interpenetrating networks knot
The composite material of structure.
The method for preparing above-mentioned anti-impact modifier, includes the following steps：
1) after mixing NBR latex, peroxide DCP or Sulfur and graphene oxide aqueous dispersion, in room temperature condition
Under, mixing time 5-300min, rotating speed of agitator 500-2000rpm obtain the complex emulsions of graphene oxide/latex；
Then, by complex emulsions heating stirring, temperature is 70 DEG C, mixing time 20-30min, rotating speed of agitator 500-
2000rpm, the graphene oxide with intercalation configuration vulcanized/micelle Aqueous dispersions material；
2) MMA monomers, peroxide BPO are added in the compound water phase dispersion of graphene oxide/micelle and are mixed
It closes, mixing time 5-300min；The mixed liquor is stirred evenly at a temperature of 40 DEG C, mixing time 5-300min；Filtering
Obtain polymethyl methacrylate cladding or polymethyl methacrylate interpenetrating micelle network structure particle.
Preferably：The mass fraction of each component is in step 1)：
Acrylonitrile-butadiene rubber latex in terms of dry rubber content 100；
Graphene oxide aqueous dispersion, with graphene oxide content meter 0.1-30；
Peroxide DCP or Sulfur 0.5-2.
Preferably：The mass fraction of each component is in step 2)：
MMA 10-80；
The compound aqueous phase system of graphene oxide/micelle, in terms of dry rubber content 100；
Peroxide BPO amount of monomer 0.1%-0.5%.
The present invention also provides application of the above-mentioned modifying agent in PVC matrix.
Specific implementation mode
Embodiment 1
100 parts of nitrile rubber latex (dry glue)
1 part of graphene oxide
1 part of antioxidant 4010NA
1.5 parts of Sulfur
MMA 30
Peroxide BPO amount of monomer 0.08
NBR latex, Sulfur and graphene dispersion aqueous solution are placed into being carried out in agitating paddle and thermometer reaction kettle
Mixing, first, at ambient temperature, mixing time 5-300min, rotating speed of agitator 500-2000rpm obtain oxidation stone
The complex emulsions of black alkene/latex；Then, complex liquid is placed into microwave equipment heating stirring, mixing time 20-30min is stirred
It is 500-2000rpm, the graphene oxide with the intercalation configuration/micelle water phase vulcanized by this process to mix paddle rotating speed
Dispersion.MMA monomers, peroxide BPO are added to containing being carried out in the compound aqueous phase system kettle of graphene oxide/micelle again
Mixing, mixing time 5-300min；Secondly, which is put into 40 degree of water-bath or baking oven, is stirred evenly, when stirring
Between be 5-300min；Finally, polymethyl methacrylate cladding or polymethyl methacrylate interpenetrating micelle network is obtained by filtration
The formation of structure particles.Mechanical property in PVC material is shown in Table 1.
Embodiment 2
100 parts of nitrile rubber latex (dry glue)
2 parts of graphene oxide
1 part of antioxidant 4010NA
1.5 parts of Sulfur
MMA 30
Peroxide BPO amount of monomer 0.08
NBR latex, Sulfur and graphene dispersion aqueous solution are placed into being carried out in agitating paddle and thermometer reaction kettle
Mixing, first, at ambient temperature, mixing time 5-300min, rotating speed of agitator 500-2000rpm obtain oxidation stone
The complex emulsions of black alkene/latex；Then, complex liquid is placed into microwave equipment heating stirring, mixing time 20-30min is stirred
It is 500-2000rpm, the graphene oxide with the intercalation configuration/micelle water phase vulcanized by this process to mix paddle rotating speed
Dispersion.MMA monomers, peroxide BPO are added to containing being carried out in the compound aqueous phase system kettle of graphene oxide/micelle again
Mixing, mixing time 5-300min；Secondly, which is put into 40 degree of water-bath or baking oven, is stirred evenly, when stirring
Between be 5-300min；Finally, polymethyl methacrylate cladding or polymethyl methacrylate interpenetrating micelle network is obtained by filtration
The formation of structure particles.
By functional 3 parts of anti-impact modifier obtained, 100 parts of PVC, 5 parts of plasticizer DOP, calcium-zinc composite stabilizing agent 3
Part, the mill in two-roll mill, bottom sheet, the then tabletting on hot press carry out the test of performance.Functional impact modification
And the mechanical property in PVC material is shown in Table 1.
Embodiment 3
100 parts of nitrile rubber latex (dry glue)
2 parts of graphene oxide
1 part of antioxidant 4010NA
1.5 parts of Sulfur
MMA 70
Peroxide BPO amount of monomer 0.08
NBR latex, Sulfur and graphene dispersion aqueous solution are placed into being carried out in agitating paddle and thermometer reaction kettle
Mixing, first, at ambient temperature, mixing time 5-300min, rotating speed of agitator 500-2000rpm obtain oxidation stone
The complex emulsions of black alkene/latex；Then, complex liquid is placed into microwave equipment heating stirring, mixing time 20-30min is stirred
It is 500-2000rpm, the graphene oxide with the intercalation configuration/micelle water phase vulcanized by this process to mix paddle rotating speed
Dispersion.MMA monomers, peroxide BPO are added to containing being carried out in the compound aqueous phase system kettle of graphene oxide/micelle again
Mixing, mixing time 5-300min；Secondly, which is put into 40 degree of water-bath or baking oven, is stirred evenly, when stirring
Between be 5-300min；Finally, polymethyl methacrylate cladding or polymethyl methacrylate interpenetrating micelle network is obtained by filtration
The formation of structure particles.
By functional 3 parts of anti-impact modifier obtained, 100 parts of PVC, 5 parts of plasticizer DOP, calcium-zinc composite stabilizing agent 3
Part, the mill in two-roll mill, bottom sheet, the then tabletting on hot press carry out the test of performance.Functional impact modification
And the mechanical property in PVC material is shown in Table 1.
Comparative example 1
In the material that commercially available ACR is equally formulated for PVC, 100 parts of 3 parts of ACR, PVC, 5 parts of plasticizer DOP, calcium zinc
3 parts of compound stabilizer, the mill in two-roll mill, bottom sheet, the then tabletting on hot press carry out the test of performance.Function
Property impact modification and the mechanical property in PVC material are shown in Table 1.Its mechanical property is shown in Table 1.
The properties tables of data of 1 several samples of table
Data explanation：
Hardness reflects the rigidity of material, illustrates the anti-impact modifier of our preparations compared with commercially available ACR, rigid difference
Less.
The variation of tensile strength illustrates the anti-impact modifier of our preparations compared with commercially available ACR, and tensile strength improves
2-3MPa, this is because the addition of graphene keeps composite materials property more preferable.
The variation of impact strength illustrates the anti-impact modifier of our preparations compared with commercially available ACR, and shock resistance carries
High about 6KJ/m2, this is because the contribution of micelle, makes the toughness of material become more preferably.
The variation of oxygen index (OI) reflects the anti-flammability of material, the anti-impact modifier and commercially available ACR phases that we prepare
Than oxygen index (OI) higher improves about 4 units, illustrates that Flame Retardancy can be more excellent.
Claims (5)
1. a kind of graphene adulterates anti-impact modifier, it is characterised in that：Graphene oxide is adulterated in rubber latex, then will
In methyl methacrylate addition system, in-situ polymerization obtains polymethyl methacrylate cladding or polymethyl methacrylate is mutual
Wear the composite material of network structure.
2. the method for preparing anti-impact modifier as described in claim 1, it is characterised in that：Include the following steps：
1) after NBR latex, peroxide DCP or Sulfur and graphene oxide aqueous dispersion being mixed, at ambient temperature,
Mixing time is 5-300min, and rotating speed of agitator 500-2000rpm obtains the complex emulsions of graphene oxide/latex；So
Afterwards, by complex emulsions heating stirring, temperature is 70 DEG C, mixing time 20-30min, rotating speed of agitator 500-2000rpm,
The graphene oxide with intercalation configuration vulcanized/micelle Aqueous dispersions material；
2) MMA monomers, peroxide BPO are added in the compound water phase dispersion of graphene oxide/micelle and are mixed, stirred
It is 5-300min to mix the time；The mixed liquor is stirred evenly at a temperature of 40 DEG C, mixing time 5-300min；It is obtained by filtration poly-
Methyl methacrylate coats or polymethyl methacrylate interpenetrating micelle network structure particle.
3. method as claimed in claim 2, it is characterised in that：
The mass fraction of each component is in step 1)：
Acrylonitrile-butadiene rubber latex in terms of dry rubber content 100；
Graphene oxide aqueous dispersion, with graphene oxide content meter 0.1-30；
Peroxide DCP or Sulfur 0.5-2.
4. method as claimed in claim 2, it is characterised in that：
The mass fraction of each component is in step 2)：
MMA 10-80；
The compound aqueous phase system of graphene oxide/micelle, in terms of dry rubber content 100；
Peroxide BPO amount of monomer 0.1%-0.5%.
5. application of the modifying agent as described in claim 1 in PVC matrix.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175509A (en) * | 2020-09-25 | 2021-01-05 | 深圳市嘉卓成科技发展有限公司 | Graphene-reinforced acrylic polyurethane water-based paint and preparation method thereof |
| CN116376296A (en) * | 2023-06-06 | 2023-07-04 | 山东宏福化学有限公司 | Preparation method of PVC processing aid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1418898A (en) * | 2002-11-14 | 2003-05-21 | 河北工业大学 | Process for preparing high shock-resistance polyacrylic ester composite particle grafted vinyl chloride emulsion resin |
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