CN117776962A - Comb-shaped hyper-dispersant, preparation method thereof and application thereof in ABS color master batch - Google Patents
Comb-shaped hyper-dispersant, preparation method thereof and application thereof in ABS color master batch Download PDFInfo
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- 239000004595 color masterbatch Substances 0.000 title claims abstract description 32
- 239000002270 dispersing agent Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000006229 carbon black Substances 0.000 claims abstract description 30
- VACHUYIREGFMSP-UHFFFAOYSA-N (+)-threo-9,10-Dihydroxy-octadecansaeure Natural products CCCCCCCCC(O)C(O)CCCCCCCC(O)=O VACHUYIREGFMSP-UHFFFAOYSA-N 0.000 claims abstract description 24
- -1 pentamethylene tetramine Chemical compound 0.000 claims abstract description 19
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims abstract description 15
- JPFGKGZYCXLEGQ-UHFFFAOYSA-N 1-(4-methoxyphenyl)-5-methylpyrazole-4-carboxylic acid Chemical compound C1=CC(OC)=CC=C1N1C(C)=C(C(O)=O)C=N1 JPFGKGZYCXLEGQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- VACHUYIREGFMSP-SJORKVTESA-N 9,10-Dihydroxystearic acid Natural products CCCCCCCC[C@@H](O)[C@@H](O)CCCCCCCC(O)=O VACHUYIREGFMSP-SJORKVTESA-N 0.000 claims abstract description 10
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 7
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 51
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- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002390 rotary evaporation Methods 0.000 claims description 5
- 241000872198 Serjania polyphylla Species 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 abstract description 12
- 238000004873 anchoring Methods 0.000 abstract description 5
- 238000007614 solvation Methods 0.000 abstract description 3
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- 230000000052 comparative effect Effects 0.000 description 11
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- 238000007792 addition Methods 0.000 description 5
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- 238000010992 reflux Methods 0.000 description 5
- 238000004040 coloring Methods 0.000 description 4
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- 229920005989 resin Polymers 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
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- 238000006116 polymerization reaction Methods 0.000 description 2
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- OSNILPMOSNGHLC-UHFFFAOYSA-N 1-[4-methoxy-3-(piperidin-1-ylmethyl)phenyl]ethanone Chemical compound COC1=CC=C(C(C)=O)C=C1CN1CCCCC1 OSNILPMOSNGHLC-UHFFFAOYSA-N 0.000 description 1
- QHZLMUACJMDIAE-UHFFFAOYSA-N 1-monopalmitoylglycerol Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(O)CO QHZLMUACJMDIAE-UHFFFAOYSA-N 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- UKWUOTZGXIZAJC-UHFFFAOYSA-N 4-nitrosalicylic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1O UKWUOTZGXIZAJC-UHFFFAOYSA-N 0.000 description 1
- IYHIFXGFKVJNBB-UHFFFAOYSA-N 5-chloro-2-[(2-hydroxynaphthalen-1-yl)diazenyl]-4-methylbenzenesulfonic acid Chemical compound C1=C(Cl)C(C)=CC(N=NC=2C3=CC=CC=C3C=CC=2O)=C1S(O)(=O)=O IYHIFXGFKVJNBB-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 241000234282 Allium Species 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229940096898 glyceryl palmitate Drugs 0.000 description 1
- 229940075529 glyceryl stearate Drugs 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000001739 pinus spp. Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- FPSFKBGHBCHTOE-UHFFFAOYSA-N sodium 3-hydroxy-4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]naphthalene-1-sulfonic acid Chemical compound [Na+].O=C1C(N=NC=2C3=CC=CC=C3C(=CC=2O)S(O)(=O)=O)C(C)=NN1C1=CC=CC=C1 FPSFKBGHBCHTOE-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
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- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention belongs to the technical field of high polymer materials, and relates to a comb-shaped hyper-dispersant, a preparation method thereof and application thereof in ABS color master batch. According to the invention, 9, 10-dihydroxystearic acid is used as a solvation chain, pentamethylene tetramine is used as an anchoring group to synthesize the comb-shaped hyperdispersant, so that pigment high dispersibility and stability can be given under low doping amount, and the hyperdispersant is used for modifying the surface of carbon black, so that high black ABS master batch can be obtained.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and relates to a comb-shaped hyper-dispersant, a preparation method thereof and application thereof in ABS color master batch.
Background
Colorants generally include inorganic pigments, organic pigments, and a portion of dyes. Pigments are the primary colorants for ABS. Suitable for ABS coloring, organic pigments include lake red C, berellinone red, vat red, benzidine yellow, monoazo orange, dioxa purple, phthalocyanine blue, carbon black and phthalocyanine green. The inorganic pigment comprises ferric oxide, blessing, chrome yellow, aluminum chrome red, sulfuring blessing, chrome yellow, ultramarine blue and chrome green oxide. Dyes suitable for the coloration of ABS are mainly: green onion yellow (orange, red, green, etc.), oil-soluble azo, phthalein, etc., pigments of different varieties have different dispersion properties, and carbon black is one of the pigment varieties which are difficult to disperse.
ABS resin is composed of block acrylonitrile, butadiene and styrene monomers, but the three components are not connected together to form a single phase but a two-phase system, wherein polymers with different chemical properties exist in different phases, so that the melt fluidity is complex, the ratio of the three components is different, and the properties of the resin are different, thus the dispersion property of the color master batch is more required. The ABS color master batch is usually prepared by selecting special resin as carrier, and ABS resin with high polymerization degree or resin with low polymerization degree can be used, and the melt index of the ABS color master batch is required to be equal to or higher than that of the ABS resin to be colored, so that the ABS color master batch is easy to disperse due to the increase of fluidity.
Dispersants are the most commonly used auxiliaries in color concentrates. The common dispersing agents of the ABS color master batch mainly comprise magnesium stearate, zinc stearate and calcium stearate; barium laurate, glyceryl palmitate, glyceryl stearate, etc., and white oil, turpentine, di Ding Ku, phosphoric acid cool, haloaryl phosphoric acid cool, etc.
The invention discloses an invention application patent with a publication number of CN112321788A, which discloses a polyester type amphiphilic hyper-dispersant and a preparation method thereof. In the preparation method, polyester polyol and diisocyanate react to form short-chain polyurethane, hydrophobic polyethylene oxide and polystyrene are added for grafting, and then monomer diisocyanate is typed for continuous reaction. But the addition amount is high, and the stability after the addition is required to be further improved.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a comb-shaped hyperdispersant which can endow pigment with high dispersibility and stability under low doping amount, and particularly can obtain high black ABS color master batch after modifying the surface of carbon black.
The aim of the invention can be achieved by the following technical scheme: a comb-shaped hyperdispersant, said dispersant comprising the structural formula:
in the above comb-shaped hyperdispersant, the preparation method of the comb-shaped hyperdispersant comprises the following steps: mixing 9, 10-dihydroxystearic acid, concentrated sulfuric acid and toluene under the protection of inert gas, cooling, adding pentamethylene tetramine for heating reaction, and finally performing vacuum rotary evaporation to obtain the comb-shaped hyper-dispersant.
Preferably, the mixed reaction product comprises the following structure:
in the comb-shaped hyper-dispersant, the mass ratio of 9, 10-dihydroxyoctadecanoic acid to pentaethylenetetramine is 1: (0.2-0.3).
In the comb-shaped hyperdispersant, the addition amount of the concentrated sulfuric acid is 20-30% of the mass of the pentamethylene tetramine.
In the comb-shaped hyper-dispersant, the mixing reaction temperature is 150-170 ℃ and the mixing reaction time is 3-5h.
In the comb-shaped hyperdispersant, the temperature of the reaction is increased to 155-165 ℃ for 5-8 hours.
In the above comb-shaped hyperdispersant, the preparation method mechanism of the comb-shaped hyperdispersant comprises:
the invention uses 9, 10-dihydroxystearic acid as raw material, and uses 9, 10-dihydroxystearic acid and toluene to make esterification reaction, then uses pentamethylene tetramine as anchoring group to prepare comb-shaped hyper-dispersant, and applies it in ABS color master batch, and can give pigment high dispersibility and stability under low doping amount, and the hyper-dispersant can modify carbon black surface to obtain high black ABS color master batch.
The invention also provides an ABS color master batch, and the ABS color master batch raw material comprises the comb-shaped hyper-dispersant and a coloring pigment.
In the ABS color master batch, the addition amount of the comb-shaped hyperdispersant is 3-8% of the mass of the coloring pigment. The comb-shaped hyper-dispersant can endow the pigment with high dispersibility and stability only by adding 3-8% of the mass of the coloring pigment.
The invention also provides a preparation method of the ABS color master batch, which comprises the following steps:
s1, mixing carbon black and a comb-shaped hyper-dispersant to obtain pre-dispersed carbon black;
s2, uniformly mixing the pre-dispersed carbon black with ABS resin and lubricant, and then extruding and granulating to obtain the special carbon black masterbatch for ABS.
In the above-described method for preparing an ABS color master batch, the ABS resin includes at least one of a low melt flow rate ABS resin and a high melt flow rate ABS resin.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, 9, 10-dihydroxystearic acid is used as a solvation chain, pentamethylene tetramine is used as an anchoring group to synthesize the comb-shaped hyperdispersant, so that pigment high dispersibility and stability can be given under low doping amount, and the hyperdispersant is used for modifying the surface of carbon black to obtain high black ABS master batch.
2. The carrier resin in the invention is ABS resin with low melt flow rate and ABS resin with high melt flow rate, which can effectively reduce the viscosity of the system and improve the dispersibility of carbon black particles in the ABS resin.
3. The comb-shaped hyper-dispersant prepared by the invention further strengthens that the hydrophilic anchoring section can be adsorbed or reacted with the surface of the powder particles, and the lipophilic chain section has good compatibility with organic medium, and the powder modified by the hyper-dispersant is uniformly dispersed and has good stability.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.
Example 1:
s1, preparing the following raw materials in parts by mass: 80 parts of 9, 10-dihydroxyoctadecanoic acid, 5 parts of concentrated sulfuric acid, 5 parts of toluene and 20 parts of pentamethylene tetramine;
s2, adding 9, 10-dihydroxystearic acid, concentrated sulfuric acid and toluene into a three-neck flask which is provided with a reflux condenser pipe and a stirrer and is protected by nitrogen, reacting for 4 hours at 160 ℃, and then cooling to room temperature;
s3, adding pentamethylene tetramine, heating to 160 ℃ for continuous reaction for 6 hours, and removing toluene by vacuum rotary evaporation after the reaction is finished to obtain the comb-shaped hyperdispersant;
s4, placing 100 parts of carbon black and 5 parts of comb-shaped hyper-dispersant in a high-speed mixer according to parts by mass, mixing for 10min to obtain pre-dispersed carbon black, then mixing with 65 parts of ABS resin matrix and 5 parts of lubricant in a torque rheometer at 220 ℃ to obtain pre-dispersed color master batch, and extruding and granulating at 225 ℃ by using a double-screw extruder to obtain the ABS color master batch.
Example 2:
s1, preparing the following raw materials in parts by mass: 80 parts of 9, 10-dihydroxystearic acid, 3.2 parts of concentrated sulfuric acid, 5 parts of toluene and 16 parts of pentamethylene tetramine;
s2, adding 9, 10-dihydroxystearic acid, concentrated sulfuric acid and toluene into a three-neck flask which is provided with a reflux condenser pipe and a stirrer and is protected by nitrogen, reacting for 3 hours at 150 ℃, and then cooling to room temperature;
s3, adding pentamethylene tetramine, heating to 155 ℃ for continuous reaction for 5 hours, and removing toluene by vacuum rotary evaporation after the reaction is finished to obtain the comb-shaped hyperdispersant;
s4, placing 100 parts of carbon black and 5 parts of comb-shaped hyper-dispersant in a high-speed mixer according to parts by mass, mixing for 10min to obtain pre-dispersed carbon black, then mixing with 65 parts of ABS resin matrix and 6 parts of lubricant in a torque rheometer at 220 ℃ to obtain pre-dispersed color master batch, and extruding and granulating at 225 ℃ by using a double-screw extruder to obtain the ABS color master batch.
Example 3:
s1, preparing the following raw materials in parts by mass: 80 parts of 9, 10-dihydroxyoctadecanoic acid, 7.2 parts of concentrated sulfuric acid, 5 parts of toluene and 24 parts of pentamethylene tetramine;
s2, adding 9, 10-dihydroxystearic acid, concentrated sulfuric acid and toluene into a three-neck flask which is provided with a reflux condenser pipe and a stirrer and is protected by nitrogen, reacting for 5 hours at 170 ℃, and then cooling to room temperature;
s3, adding pentamethylene tetramine, heating to 165 ℃ for continuous reaction for 8 hours, and removing toluene by vacuum rotary evaporation after the reaction is finished to obtain the comb-shaped hyperdispersant;
s4, placing 100 parts of carbon black and 5 parts of comb-shaped hyperdispersant in a high-speed mixer according to parts by weight, mixing for 10min to obtain pre-dispersed carbon black, then mixing with 65 parts of ABS resin matrix and 5 parts of lubricant in a torque rheometer at 220 ℃ to obtain pre-dispersed masterbatch, and extruding and granulating at 225 ℃ by using a double-screw extruder to obtain the ABS masterbatch.
Example 4:
the process differs from example 1 only in that in step S4, 100 parts by mass of carbon black and 1 part of comb-shaped hyperdispersant are placed in a high-speed mixer to be mixed for 10min of pre-dispersed carbon black, then the pre-dispersed carbon black is mixed with 65 parts of ABS resin matrix and 5 parts of lubricant in a torque rheometer at 220 ℃ to obtain pre-dispersed color master batch, and then the pre-dispersed color master batch is extruded and granulated by a double-screw extruder at 225 ℃ to obtain the ABS color master batch.
Example 5:
the process differs from example 1 only in that in step S4, 100 parts by mass of carbon black and 10 parts by mass of comb-shaped hyperdispersant are placed in a high-speed mixer to be mixed for 10min of pre-dispersed carbon black, then are mixed with 65 parts of ABS resin matrix and 5 parts of lubricant in a torque rheometer at 220 ℃ to obtain pre-dispersed color master batch, and then extrusion granulation is carried out at 225 ℃ by a twin-screw extruder to obtain ABS color master batch.
Comparative example 1:
the difference from example 1 is that step S2 was carried out by adding 9, 10-dihydroxyoctadecanoic acid, concentrated sulfuric acid, toluene to a three-necked flask equipped with a reflux condenser and a stirrer and introducing nitrogen gas, and then carrying out the reaction at 120℃for 4 hours, followed by cooling to room temperature.
Comparative example 2:
the difference from example 1 was that 9, 10-dihydroxyoctadecanoic acid, concentrated sulfuric acid and toluene were added to a three-necked flask equipped with a reflux condenser and a stirrer and nitrogen gas was introduced thereinto, and the reaction was carried out at 200℃for 4 hours, followed by cooling to room temperature.
Comparative example 3:
the difference from example 1 is only that step S1 pentamethylene tetramine is replaced by tetraethylenepentamine.
Table 1: results of testing the Performance of the Pre-dispersed carbon blacks prepared in examples 1-3 and comparative examples 1-2
| Examples | Average particle diameter (nm) | Darkness (%) |
| Example 1 | 16 | 25 |
| Example 2 | 17 | 24 |
| Example 3 | 15 | 27 |
| Comparative example 1 | 23 | 18 |
| Comparative example 2 | 25 | 16 |
| Comparative example 3 | 28 | 13 |
Table 2: ABS color master batch Performance test results prepared in examples 1-5 and comparative examples 1-2
| Examples | Dispersibility% | Tensile strength MPa | Impact strength KJ/m 2 |
| Example 1 | 63 | 47.3 | 6.9 |
| Example 2 | 62 | 45.9 | 6.6 |
| Example 3 | 59 | 46.8 | 7.1 |
| Example 4 | 51 | 41.1 | 7.2 |
| Example 5 | 65 | 38.8 | 6.5 |
| Comparative example 1 | 55 | 44.3 | 6.3 |
| Comparative example 2 | 53 | 43.5 | 6.4 |
| Comparative example 3 | 46 | 38.8 | 5.6 |
In conclusion, the hyperdispersant synthesized by taking 9, 10-dihydroxyoctadecanoic acid as a solvation chain and pentamethylene tetramine as an anchoring group has a comb-shaped structure, can endow pigment with high dispersibility and stability under low doping amount, and is used for modifying the surface of carbon black to obtain the high black ABS master batch.
The point values in the technical scope of the present invention are not exhaustive, and the new technical solutions formed by equivalent substitution of single or multiple technical features in the technical solutions of the embodiments are also within the scope of the present invention; meanwhile, in all the listed or unrecited embodiments of the present invention, each parameter in the same embodiment represents only one example of the technical scheme (i.e. a feasibility scheme), and no strict coordination and limitation relation exists between each parameter, wherein each parameter can be replaced with each other without violating axiom and the requirement of the present invention, except what is specifically stated.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the technical means, and also comprises the technical scheme formed by any combination of the technical features. While the foregoing is directed to embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, and such changes and modifications are intended to be included within the scope of the invention.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A comb-shaped hyperdispersant, wherein the dispersant comprises the following structural formula:
2. the comb-shaped hyper-dispersant of claim 1, wherein the method of preparing the comb-shaped hyper-dispersant comprises the steps of: mixing 9, 10-dihydroxystearic acid, concentrated sulfuric acid and toluene under the protection of inert gas, cooling, adding pentamethylene tetramine for heating reaction, and finally performing vacuum rotary evaporation to obtain the comb-shaped hyper-dispersant.
3. The comb hyperdispersant of claim 2, wherein the mass ratio of 9, 10-dihydroxyoctadecanoic acid to pentaethylenetetramine is 1: (0.2-0.3).
4. The comb-shaped hyperdispersant of claim 2, wherein the concentrated sulfuric acid is added in an amount of 20-30% by mass of pentamethylene tetramine.
5. The comb hyperdispersant of claim 2, wherein the mixing reaction temperature is 150-170 ℃ for 3-5 hours.
6. The comb hyperdispersant of claim 2, wherein the elevated temperature reaction temperature is 155-165 ℃ for a period of 5-8 hours.
7. An ABS color master batch, which is characterized in that the ABS color master batch raw material comprises the comb-shaped hyper-dispersant and carbon black as claimed in claim 1.
8. The ABS color master batch according to claim 7, wherein the comb-shaped hyperdispersant is added in an amount of 3-8% by mass of carbon black.
9. A method for preparing the ABS color master batch according to claim 7, wherein the method comprises the steps of:
s1, mixing carbon black and a comb-shaped hyper-dispersant to obtain pre-dispersed carbon black;
s2, uniformly mixing the pre-dispersed carbon black with ABS resin and lubricant, and then extruding and granulating to obtain the special carbon black masterbatch for ABS.
10. The method for preparing an ABS color master batch according to claim 9, wherein the ABS resin comprises at least one of a low melt flow rate ABS resin and a high melt flow rate ABS resin.
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