CN114573917B - Preparation method of special film-coating color master batch for outdoor tarpaulin - Google Patents
Preparation method of special film-coating color master batch for outdoor tarpaulin Download PDFInfo
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- CN114573917B CN114573917B CN202210244168.1A CN202210244168A CN114573917B CN 114573917 B CN114573917 B CN 114573917B CN 202210244168 A CN202210244168 A CN 202210244168A CN 114573917 B CN114573917 B CN 114573917B
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- 239000004595 color masterbatch Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 239000007888 film coating Substances 0.000 title claims abstract description 18
- 238000009501 film coating Methods 0.000 title claims abstract description 18
- 239000003063 flame retardant Substances 0.000 claims abstract description 48
- 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 claims abstract description 46
- -1 polypropylene Polymers 0.000 claims abstract description 46
- 239000004743 Polypropylene Substances 0.000 claims abstract description 45
- 229920001155 polypropylene Polymers 0.000 claims abstract description 45
- 239000000945 filler Substances 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 16
- 239000004626 polylactic acid Substances 0.000 claims abstract description 16
- 239000003381 stabilizer Substances 0.000 claims abstract description 16
- CTENFNNZBMHDDG-UHFFFAOYSA-N Dopamine hydrochloride Chemical compound Cl.NCCC1=CC=C(O)C(O)=C1 CTENFNNZBMHDDG-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229960001149 dopamine hydrochloride Drugs 0.000 claims abstract description 14
- 239000007822 coupling agent Substances 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 55
- 239000002131 composite material Substances 0.000 claims description 47
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 46
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 45
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 40
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 39
- 238000003756 stirring Methods 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 30
- 229940007718 zinc hydroxide Drugs 0.000 claims description 30
- 229910021511 zinc hydroxide Inorganic materials 0.000 claims description 30
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 28
- 238000010926 purge Methods 0.000 claims description 27
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 26
- JRFBNCLFYLUNCE-UHFFFAOYSA-N zinc;oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Zn+2] JRFBNCLFYLUNCE-UHFFFAOYSA-N 0.000 claims description 26
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 24
- 239000011592 zinc chloride Substances 0.000 claims description 23
- 235000005074 zinc chloride Nutrition 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- 239000011787 zinc oxide Substances 0.000 claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 20
- 206010037544 Purging Diseases 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 18
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 15
- 239000004408 titanium dioxide Substances 0.000 claims description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 12
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 12
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 10
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 238000009210 therapy by ultrasound Methods 0.000 claims description 10
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 10
- 238000001238 wet grinding Methods 0.000 claims description 10
- 238000006116 polymerization reaction Methods 0.000 claims description 8
- 238000004090 dissolution Methods 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims 2
- 239000004594 Masterbatch (MB) Substances 0.000 abstract description 6
- 238000003475 lamination Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 12
- 229920001690 polydopamine Polymers 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229960003638 dopamine Drugs 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- AOJJSUZBOXZQNB-VTZDEGQISA-N 4'-epidoxorubicin Chemical group O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@@H](O)[C@H](C)O1 AOJJSUZBOXZQNB-VTZDEGQISA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- MAZJFWHKKPFVND-UHFFFAOYSA-N aluminum propan-2-ol propan-2-olate Chemical compound [Al+3].CC(C)O.CC(C)[O-].CC(C)[O-].CC(C)[O-] MAZJFWHKKPFVND-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- DLINORNFHVEIFE-UHFFFAOYSA-N hydrogen peroxide;zinc Chemical compound [Zn].OO DLINORNFHVEIFE-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical group [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of film coating, and particularly relates to a preparation method of a film coating color master batch special for outdoor tarpaulin, which comprises the following steps of: 40-80 parts of polypropylene resin, 20-30 parts of filler, 5-10 parts of dopamine hydrochloride, 5-10 parts of dispersing agent, 10-20 parts of polylactic acid, 8-15 parts of flame retardant, 2-5 parts of coupling agent and 2-4 parts of stabilizer, and further provides a preparation method of the masterbatch. The invention solves the defects of the existing lamination color master batch, effectively improves the mechanical property and the processability of the lamination by utilizing the tensile strength and the extensibility of the polylactic acid, and simultaneously improves the problems of hard hand feeling and poor comfort of the lamination.
Description
Technical Field
The invention belongs to the technical field of film coating, and particularly relates to a preparation method of a film coating color master batch special for outdoor tarpaulin.
Background
Tarpaulins are also called tarpaulins, rain cloths, tarpaulins and tarpaulins, are firm and fold-resistant, have good waterproof performance and are widely used for covering automobiles and open warehouses, taking tents in the open air and the like. The traditional tarpaulin has simple structure and no plastic layer protection, so the performances of water resistance, mildew resistance, cold resistance, aging resistance and the like are poor, and the outdoor use requirement is difficult to meet. To solve the problem, upgrading products such as PVC canvas, TPU tarpaulin, knife scraping cloth, biaxial cloth, plastic coated cloth and the like appear on the market. Along with the development of technology, the film coating is odorless, nontoxic, wear-resistant and rubbing-resistant, can be used for a long time in various ecological or physical and chemical environments such as infrared rays, ultraviolet rays, laser, wind, frost, rain, snow, acid, alkali and the like, and is used for tarpaulin, but the film coating has the problems of hard hand feeling and poor comfort, and is difficult to meet the requirements of the tarpaulin. Therefore, a laminated material with good hand feeling and high comfort is urgently needed in the market.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the preparation method of the special coating color master batch for the outdoor tarpaulin, which solves the defects of the existing coating color master batch, effectively improves the mechanical property and the processability of the coating by utilizing the tensile strength and the extensibility of the polylactic acid, and simultaneously improves the problems of hard hand feeling and poor comfort of the coating.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
The preparation method of the special film-coating color master batch for the outdoor tarpaulin comprises the following steps of:
40-80 parts of polypropylene resin, 20-30 parts of filler, 5-10 parts of dopamine hydrochloride, 5-10 parts of dispersing agent, 10-20 parts of polylactic acid, 8-15 parts of flame retardant, 2-5 parts of coupling agent and 2-4 parts of stabilizer.
The polypropylene resin adopts a composite polypropylene resin formed by combining the copolymerization polypropylene and the homopolymerization polypropylene, the mass ratio of the copolymerization polypropylene to the homopolymerization polypropylene is 2:3-5, and the copolymerization polypropylene and the homopolymerization polypropylene both use the polypropylene as a base material, have certain performance difference, and have good compatibility when combined, and form performance complementation.
The filler adopts a titanium dioxide-zinc oxide composite system, the molar ratio of titanium dioxide to zinc oxide is 2-3:1, the titanium dioxide and the zinc oxide are both nanoscale materials, the filler has good filler effect, the surfaces of the titanium dioxide and the zinc oxide have active hydroxyl groups, and the titanium dioxide and the zinc oxide are stably connected with resin, so that the curing effect of the filler is greatly improved, and the problem of filler falling is prevented; based on the masterbatch is used for outdoor tarpaulin, very easily contact sunlight in service environment, zinc dioxide and zinc oxide can be to shielding the effect of ultraviolet light, but zinc oxide is very easy to excite, cause the inside impaired of drenching membrane that masterbatch formed, consequently, titanium dioxide wraps up zinc oxide with the mode of shielding agent to form heterojunction structure, promote the active group on zinc oxide surface to transmit fast, reduce the influence of zinc oxide, zinc oxide is limited by the parcel of titanium dioxide simultaneously, reduced self exposes, greatly reduced the active excitation of zinc oxide under illumination. The preparation method of the titanium dioxide-zinc oxide composite system comprises the following steps: a1, dissolving zinc chloride in glycerol, stirring uniformly until the zinc chloride is completely dissolved, slowly adding sodium hydroxide, performing ultrasonic dispersion for 20-30min, performing centrifugal filtration, and washing with ethanol to obtain nano zinc hydroxide, wherein the concentration of the zinc chloride in the glycerol is 100-200g/L, the molar amount of the sodium hydroxide is 200-210% of that of the zinc chloride, the ultrasonic frequency of ultrasonic dispersion is 50-60kHz, and the temperature is 40-60 ℃; in the process, zinc chloride and sodium hydroxide are converted into zinc hydroxide, sodium chloride is formed as impurities, and glycerol is used as a solvent to solve the problem of zinc chloride, so that zinc chloride and sodium hydroxide can be dissolved, and sodium chloride can be dissolved, therefore, zinc hydroxide is used as precipitate in the process, sodium hydroxide is added in batches and dispersed in ultrasonic mode, uniform dispersion of sodium hydroxide into glycerol can be ensured, nano zinc hydroxide can be formed stably by matching with the viscosity of glycerol, and agglomeration of sodium hydroxide is hindered; a2, adding nano zinc hydroxide into n-butyl titanate, homogenizing and stirring to form slurry, pouring into a mortar, fully mixing and wet grinding for 10min to obtain coated zinc hydroxide, wherein the molar ratio of the zinc hydroxide to the n-butyl titanate is 1:2-3, and the wet grinding temperature is 40-50 ℃; a3, spraying the zinc hydroxide film into a water-containing reaction kettle to react for 20-30min, and then purging for 3-4h to obtain a prefabricated zinc oxide-titanium dioxide composite system; the atmosphere of the water-containing reaction kettle is a water-nitrogen mixed atmosphere, the volume ratio of water is 5-7%, and the reaction temperature is 90-100 ℃; the purging treatment adopts dry nitrogen, and the temperature of the nitrogen is 130-170 ℃; in the step, the coated zinc hydroxide forms hydrolysis reaction in the water-containing atmosphere of the reaction kettle, is converted into zinc hydroxide of titanic acid coating, and is gradually converted into zinc oxide and titanium dioxide in the purging treatment, and the zinc hydroxide forms water molecules inside and releases the water molecules from inside to outside so as to achieve complete hydrolysis of n-butyl titanate; and a4, carrying out microwave reaction on the prefabricated zinc oxide-titanium dioxide composite system in a reaction kettle for 2-4 hours to obtain a zinc oxide-titanium dioxide composite body, wherein the temperature of the microwave reaction is 180-200 ℃, and the microwave power is 300-500W. The process utilizes a grinding coating mode to promote the full mixing of zinc hydroxide and n-butyl titanate, thereby realizing the surface coating effect, converting the zinc oxide and titanium oxide structure in hydrolysis reaction and blowing reaction, forming active connection of zinc oxide and titanium dioxide based on the previous coating effect, and further promoting the bonding of zinc oxide and titanium dioxide in microwave treatment, thereby forming a heterojunction structure. The heterojunction structure of zinc oxide-titanium dioxide not only maintains the function of nano filler, but also has good ultraviolet shielding property on titanium dioxide and zinc oxide, improves the light stability, and slows down the light dissolution problem of zinc oxide by utilizing the heterojunction structure.
The polydopamine is prepared by self-polymerization of dopamine hydrochloride. The polydopamine has good adhesion performance and can be adhered to the surfaces of different inorganic, organic or biological materials, and in the proportion, the polydopamine has a stable connection effect on raw materials, so that an inorganic system of the filler and the flame retardant is stably solidified on the masterbatch, and the problems of layering, frosting, patterns and the like are reduced; and secondly, the polydopamine has good stability, can absorb active substances, forms oxidation self-polymerization, and can cooperate with the compatibility of the filler to promote the conversion of dopamine into polydopamine, and simultaneously promote the solidification and connection of the filler and the organic resin.
The dispersing agent adopts a mixture of heavy calcium carbonate and stearic acid amide, and the mass ratio of the heavy calcium carbonate to the stearic acid amide is 1-2:4. The stearic acid amide not only has good dispersing effect and improves the overall dispersibility, but also has good lubricity and demolding property, plays a role of an opening agent, and provides convenience for subsequent film forming treatment. The heavy calcium carbonate has the characteristics of soft quality and good dispersibility, can be uniformly distributed in the stearic acid amide, cannot influence the whole color master batch, can be used as a filler, and reduces the use of a hard filler.
The polylactic acid has good mechanical properties and physical properties, the machinability of the masterbatch is greatly improved, meanwhile, the polylactic acid has the best tensile strength and extensibility, the defects of polypropylene are improved in terms of temperature resistance, weather resistance and hand feeling, and the problems of hard hand feeling and poor comfort of the laminated film are also improved.
The flame retardant adopts an aluminum composite flame retardant, the aluminum composite flame retardant consists of aluminum oxide and aluminum hydroxide, and the aluminum hydroxide wraps the aluminum oxide. Aluminum hydroxide has good flame retardance and can be used as a flame retardant material, but the aluminum hydroxide belongs to a covalent bond, the heat conduction performance is relatively common, local high heat is very easy to generate, the temperature is excessively expanded, aluminum oxide is used as an inner core, the effect of rapidly transferring heat is achieved, and the single aluminum hydroxide is converted into regional protection to achieve the effect of dispersing the heat. The preparation method of the aluminum composite flame retardant comprises the following steps: b1, adding aluminum hydroxide into a mortar, and carrying out constant-temperature grinding treatment for 2-3h to obtain fine powder, wherein the constant-temperature grinding temperature is 180-190 ℃, and the grinding pressure is 0.3-0.5MPa, and the grinding treatment not only converts the aluminum hydroxide into active aluminum oxide, but also completely pulverizes the aluminum hydroxide in the grinding process to form stable and dispersed fine powder; adding aluminum isopropoxide into isopropanol, stirring uniformly to form a solution, adding the fine powder into the solution, carrying out ultrasonic treatment for 20-40min, filtering and drying to obtain film-plated fine powder, wherein the mass ratio of the aluminum isopropoxide to the isopropanol is 2:5-7, the stirring speed is 100-200r/min, the concentration of the fine powder in the solution is 20-30g/L, the ultrasonic treatment temperature is 50-80 ℃, the ultrasonic frequency is 50-80kHz, and the drying temperature is 80-85 ℃; and b3, spraying the film coating fine powder into a reaction kettle, ventilating and purging for 2-3 hours, and then performing secondary nitrogen purging for 3-5 hours to obtain aluminum hydroxide coated aluminum oxide, namely the aluminum composite flame retardant, wherein the ventilating and purging adopts nitrogen containing water vapor, the volume ratio of the water vapor to the nitrogen is 1:20-30, the temperature is 80-90 ℃, the nitrogen purging adopts dry nitrogen, and the temperature is 120-140 ℃. The process utilizes the combination mode of the temperature rising decomposition and the ball milling dispersion of aluminum hydroxide to directly convert into an active aluminum oxide structure, and the active aluminum oxide structure is ultrasonically adsorbed in an aluminum isopropoxide-isopropanol solution, and aluminum isopropoxide is adsorbed on the surface of the active aluminum oxide to form a liquid film based on the homogenization of aluminum ions; meanwhile, the formation of the liquid film effectively prevents the self-aggregation phenomenon of the activated alumina, thereby obtaining the aluminum material with good dispersibility.
The coupling agent adopts monoalkoxy titanate.
The stabilizer adopts polyester wax.
The preparation method of the color master batch comprises the following steps:
Adding dopamine hydrochloride into ethanol, stirring uniformly at 50-60 ℃ to form dissolution, adding filler and flame retardant, continuously stirring for 20-30min, drying, and performing self-polymerization reaction in an alkaline humid environment to obtain a coated filler and a coated flame retardant, wherein the humidity in the alkaline humid environment is 10%, the alkaline pH is 8.5, the temperature is 60-70 ℃, and the dopamine hydrochloride can form a surface liquid film and the liquid film is alkaline under the environment to promote the dopamine hydrochloride to form self-polymerization reaction.
Step 2, uniformly mixing polypropylene resin, polylactic acid, coating filler and coating flame retardant, and then adding a dispersing agent, the flame retardant and a stabilizing agent to stir at a high speed for 2-3 hours to obtain a mixture;
Step3, plasticizing and extruding the mixture by using a screw extruder, wherein the extruder adopts 5 temperature areas, and the temperature is 170 ℃, 180 ℃ and 190 ℃ in sequence;
and 4, cooling the extrudate, and granulating to obtain the color master batch.
From the above description, it can be seen that the present invention has the following advantages:
1. The invention solves the defects of the existing lamination color master batch, effectively improves the mechanical property and the processability of the lamination by utilizing the tensile strength and the extensibility of the polylactic acid, and simultaneously improves the problems of hard hand feeling and poor comfort of the lamination.
2. According to the invention, polydopamine is introduced into the masterbatch, the excellent adhesiveness of polydopamine is utilized to ensure the stable connection between inorganic materials and organic resin, and simultaneously, the coupling agent is matched to stably solidify inactive inorganic materials such as calcium carbonate, so that the effect of uniform inside and outside is realized; meanwhile, the intrinsic characteristics of the polydopamine ensure the long-acting property of the inside of the color master batch, and the preferential wrapping of the fire retardant and the filler by the dopamine in the process effectively reduces the activity of the particles in the filler and the fire retardant, and prolongs the service life of the color master batch.
3. The invention utilizes polydopamine to carry a large number of hydroxyl and amino, belongs to a good secondary reaction system, achieves multidirectional chemical bonding in the subsequent mixing process, and improves the stability of the color master batch.
Detailed Description
The invention is described in detail with reference to examples, but without any limitation to the claims of the invention.
Example 1
The preparation method of the special film-coating color master batch for the outdoor tarpaulin comprises the following steps of:
40 parts of polypropylene resin, 20 parts of filler, 5 parts of dopamine hydrochloride, 5 parts of dispersing agent, 10-20 parts of polylactic acid, 8 parts of flame retardant, 2 parts of coupling agent and 2 parts of stabilizer.
The polypropylene resin is a composite polypropylene resin formed by combining copolymerized polypropylene and homopolymerized polypropylene, and the mass ratio of the copolymerized polypropylene to the homopolymerized polypropylene is 2:3.
The filler adopts a titanium dioxide-zinc oxide composite system, and the molar ratio of the titanium dioxide to the zinc oxide is 2:1. The preparation method of the titanium dioxide-zinc oxide composite system comprises the following steps: a1, dissolving zinc chloride in glycerol, stirring uniformly until the zinc chloride is completely dissolved, slowly adding sodium hydroxide, performing ultrasonic dispersion for 20min, performing centrifugal filtration, and washing with ethanol to obtain nano zinc hydroxide, wherein the concentration of the zinc chloride in the glycerol is 100g/L, the molar quantity of the sodium hydroxide is 200% of that of the zinc chloride, the ultrasonic frequency of ultrasonic dispersion is 50kHz, and the temperature is 40 ℃; a2, adding nano zinc hydroxide into n-butyl titanate, homogenizing and stirring to form slurry, pouring into a mortar, fully mixing and wet grinding for 10min to obtain coated zinc hydroxide, wherein the molar ratio of the zinc hydroxide to the n-butyl titanate is 1:2, and the wet grinding temperature is 40 ℃; a3, spraying the coated zinc hydroxide into a water-containing reaction kettle for reaction for 20min, and then carrying out purging treatment for 3h to obtain a prefabricated zinc oxide-titanium dioxide composite system; the atmosphere of the water-containing reaction kettle is a water-nitrogen mixed atmosphere, the volume ratio of water is 5%, and the reaction temperature is 90 ℃; the purging treatment adopts dry nitrogen, and the temperature of the nitrogen is 130 ℃; and a4, carrying out microwave reaction on the prefabricated zinc oxide-titanium dioxide composite system in a reaction kettle for 2 hours to obtain a zinc oxide-titanium dioxide composite body, wherein the temperature of the microwave reaction is 180 ℃, and the microwave power is 300W.
The dispersing agent adopts a mixture of heavy calcium carbonate and stearic acid amide, and the mass ratio of the heavy calcium carbonate to the stearic acid amide is 1:4.
The aluminum composite flame retardant is adopted, and consists of aluminum oxide and aluminum hydroxide, wherein the aluminum hydroxide wraps the aluminum oxide, and the preparation method of the aluminum composite flame retardant comprises the following steps: b1, adding aluminum hydroxide into a mortar, and carrying out constant-temperature grinding treatment for 2 hours to obtain fine powder, wherein the constant-temperature grinding temperature is 180 ℃ and the grinding pressure is 0.3MPa; adding aluminum isopropoxide into isopropanol, stirring uniformly to form a solution, adding the fine powder into the solution, carrying out ultrasonic treatment for 20min, filtering and drying to obtain film-plated fine powder, wherein the mass ratio of the aluminum isopropoxide to the isopropanol is 2:5, the stirring speed is 100r/min, the concentration of the fine powder in the solution is 20g/L, the ultrasonic treatment temperature is 50 ℃, the ultrasonic frequency is 50kHz, and the drying temperature is 80 ℃; and b3, spraying the film-coated fine powder into a reaction kettle, ventilating and purging for 2 hours, and then performing secondary nitrogen purging for 3 hours to obtain aluminum hydroxide-coated aluminum oxide, namely the aluminum composite flame retardant, wherein the ventilating and purging adopts nitrogen containing water vapor, the volume ratio of the water vapor to the nitrogen is 1:20, the temperature is 80 ℃, and the nitrogen purging adopts dry nitrogen, and the temperature is 120 ℃.
The coupling agent adopts monoalkoxy titanate.
The stabilizer adopts polyester wax.
The preparation method of the color master batch comprises the following steps:
Step 1, adding dopamine hydrochloride into ethanol, stirring uniformly at 50 ℃ to form dissolution, then adding a filler and a flame retardant, continuously stirring for 20min, drying, and performing self-polymerization reaction in an alkaline humid environment to obtain a coated filler and a coated flame retardant, wherein the humidity in the alkaline humid environment is 10%, the alkaline pH is 8.5, and the temperature is 60 ℃;
step 2, uniformly mixing polypropylene resin, polylactic acid, coating filler and coating flame retardant, and then adding a dispersing agent, the flame retardant and a stabilizing agent to stir for 2 hours at a high speed to obtain a mixture;
Step3, plasticizing and extruding the mixture by using a screw extruder, wherein the extruder adopts 5 temperature areas, and the temperature is 170 ℃, 180 ℃ and 190 ℃ in sequence;
and 4, cooling the extrudate, and granulating to obtain the color master batch.
The color master batch prepared by the embodiment has a limiting oxygen index of 31 percent, a vertical combustion grade of V-0, a heat-resistant temperature of 337 ℃, no precipitation on the surface after being steamed by boiling water for 48 hours, and no reduction of limiting oxygen index after being continuously baked for 150 hours at 120 ℃. The color master batch has smooth appearance, no obvious color difference and no particle adhesion.
Example 2
The preparation method of the special film-coating color master batch for the outdoor tarpaulin comprises the following steps of:
80 parts of polypropylene resin, 30 parts of filler, 10 parts of dopamine hydrochloride, 10 parts of dispersing agent, 20 parts of polylactic acid, 15 parts of flame retardant, 5 parts of coupling agent and 4 parts of stabilizer.
The polypropylene resin is a composite polypropylene resin formed by combining copolymerized polypropylene and homopolymerized polypropylene, and the mass ratio of the copolymerized polypropylene to the homopolymerized polypropylene is 2:5.
The filler adopts a titanium dioxide-zinc oxide composite system, and the molar ratio of the titanium dioxide to the zinc oxide is 23:1. The preparation method of the titanium dioxide-zinc oxide composite system comprises the following steps: a1, dissolving zinc chloride in glycerol, stirring uniformly until the zinc chloride is completely dissolved, slowly adding sodium hydroxide, performing ultrasonic dispersion for 30min, performing centrifugal filtration, and washing with ethanol to obtain nano zinc hydroxide, wherein the concentration of the zinc chloride in the glycerol is 200g/L, the molar quantity of the sodium hydroxide is 210% of that of the zinc chloride, the ultrasonic frequency of ultrasonic dispersion is 60kHz, and the temperature is 60 ℃; a2, adding nano zinc hydroxide into n-butyl titanate, homogenizing and stirring to form slurry, pouring into a mortar, fully mixing and wet grinding for 10min to obtain coated zinc hydroxide, wherein the molar ratio of the zinc hydroxide to the n-butyl titanate is 1:3, and the wet grinding temperature is 50 ℃; a3, spraying the coated zinc hydroxide into a water-containing reaction kettle for reaction for 30min, and then carrying out purging treatment for 4h to obtain a prefabricated zinc oxide-titanium dioxide composite system; the atmosphere of the water-containing reaction kettle is a water-nitrogen mixed atmosphere, the volume ratio of water is 7%, and the reaction temperature is 100 ℃; the purging treatment adopts dry nitrogen, and the temperature of the nitrogen is 170 ℃; and a4, carrying out microwave reaction on the prefabricated zinc oxide-titanium dioxide composite system in a reaction kettle for 4 hours to obtain a zinc oxide-titanium dioxide composite body, wherein the temperature of the microwave reaction is 200 ℃, and the microwave power is 500W.
The dispersing agent adopts a mixture of heavy calcium carbonate and stearic acid amide, and the mass ratio of the heavy calcium carbonate to the stearic acid amide is 2:4.
The aluminum composite flame retardant is adopted, and consists of aluminum oxide and aluminum hydroxide, wherein the aluminum hydroxide wraps the aluminum oxide, and the preparation method of the aluminum composite flame retardant comprises the following steps: b1, adding aluminum hydroxide into a mortar, and carrying out constant-temperature grinding treatment for 3 hours to obtain fine powder, wherein the constant-temperature grinding temperature is 190 ℃, and the grinding pressure is 0.5MPa; adding aluminum isopropoxide into isopropanol, stirring uniformly to form a solution, adding the fine powder into the solution, carrying out ultrasonic treatment for 40min, filtering and drying to obtain film-plated fine powder, wherein the mass ratio of the aluminum isopropoxide to the isopropanol is 2:7, the stirring speed is 200r/min, the concentration of the fine powder in the solution is 30g/L, the ultrasonic treatment temperature is 80 ℃, the ultrasonic frequency is 80kHz, and the drying temperature is 85 ℃; and b3, spraying the film-coated fine powder into a reaction kettle, ventilating and purging for 3 hours, and then performing secondary nitrogen purging for 5 hours to obtain aluminum hydroxide-coated aluminum oxide, namely the aluminum composite flame retardant, wherein the ventilating and purging adopts nitrogen containing water vapor, the volume ratio of the water vapor to the nitrogen is 1:30, the temperature is 90 ℃, and the nitrogen purging adopts dry nitrogen, and the temperature is 140 ℃.
The coupling agent adopts monoalkoxy titanate.
The stabilizer adopts polyester wax.
The preparation method of the color master batch comprises the following steps:
Step 1, adding dopamine hydrochloride into ethanol, stirring uniformly at 60 ℃ to form dissolution, then adding a filler and a flame retardant, continuously stirring for 30min, drying, and performing self-polymerization reaction in an alkaline humid environment to obtain a coated filler and a coated flame retardant, wherein the humidity in the alkaline humid environment is 10%, the alkaline pH is 8.5, and the temperature is 70 ℃;
step 2, uniformly mixing polypropylene resin, polylactic acid, coating filler and coating flame retardant, and then adding a dispersing agent, the flame retardant and a stabilizing agent to stir for 3 hours at a high speed to obtain a mixture;
Step3, plasticizing and extruding the mixture by using a screw extruder, wherein the extruder adopts 5 temperature areas, and the temperature is 170 ℃, 180 ℃ and 190 ℃ in sequence;
and 4, cooling the extrudate, and granulating to obtain the color master batch.
According to detection, the limiting oxygen index of the color master batch prepared by the embodiment is 32%, the vertical combustion grade is V-0, the heat-resistant temperature is 345 ℃, no precipitation is generated on the surface of the color master batch after being steamed and boiled in boiling water for 48 hours, and the limiting oxygen index is not reduced after the color master batch is continuously baked for 150 hours at 120 ℃. The color master batch has smooth appearance, no obvious color difference and no particle adhesion.
Example 3
The preparation method of the special film-coating color master batch for the outdoor tarpaulin comprises the following steps of:
60 parts of polypropylene resin, 25 parts of filler, 8 parts of dopamine hydrochloride, 7 parts of dispersing agent, 15 parts of polylactic acid, 10 parts of flame retardant, 4 parts of coupling agent and 3 parts of stabilizer.
The polypropylene resin is a composite polypropylene resin formed by combining copolymerized polypropylene and homopolymerized polypropylene, and the mass ratio of the copolymerized polypropylene to the homopolymerized polypropylene is 2:4.
The filler adopts a titanium dioxide-zinc oxide composite system, and the molar ratio of the titanium dioxide to the zinc oxide is 2:1. The preparation method of the titanium dioxide-zinc oxide composite system comprises the following steps: a1, dissolving zinc chloride in glycerol, stirring uniformly until the zinc chloride is completely dissolved, slowly adding sodium hydroxide, performing ultrasonic dispersion for 25min, performing centrifugal filtration, and washing with ethanol to obtain nano zinc hydroxide, wherein the concentration of the zinc chloride in the glycerol is 150g/L, the molar quantity of the sodium hydroxide is 205% of that of the zinc chloride, the ultrasonic frequency of ultrasonic dispersion is 55kHz, and the temperature is 50 ℃; a2, adding nano zinc hydroxide into n-butyl titanate, homogenizing and stirring to form slurry, pouring into a mortar, fully mixing and wet grinding for 10min to obtain coated zinc hydroxide, wherein the molar ratio of the zinc hydroxide to the n-butyl titanate is 1:2, and the wet grinding temperature is 45 ℃; a3, spraying the zinc hydroxide film into a water-containing reaction kettle to react for 25min, and then purging for 3-4h to obtain a prefabricated zinc oxide-titanium dioxide composite system; the atmosphere of the water-containing reaction kettle is a water-nitrogen mixed atmosphere, the volume ratio of water is 6%, and the reaction temperature is 95 ℃; the purging treatment adopts dry nitrogen, and the temperature of the nitrogen is 160 ℃; and a4, carrying out microwave reaction on the prefabricated zinc oxide-titanium dioxide composite system in a reaction kettle for 3 hours to obtain a zinc oxide-titanium dioxide composite body, wherein the temperature of the microwave reaction is 190 ℃, and the microwave power is 400W.
The dispersing agent adopts a mixture of heavy calcium carbonate and stearic acid amide, and the mass ratio of the heavy calcium carbonate to the stearic acid amide is 1:4.
The aluminum composite flame retardant is adopted, and consists of aluminum oxide and aluminum hydroxide, wherein the aluminum hydroxide wraps the aluminum oxide, and the preparation method of the aluminum composite flame retardant comprises the following steps: b1, adding aluminum hydroxide into a mortar, and carrying out constant-temperature grinding treatment for 3 hours to obtain fine powder, wherein the constant-temperature grinding temperature is 185 ℃ and the grinding pressure is 0.4MPa; adding aluminum isopropoxide into isopropanol, stirring uniformly to form a solution, adding the fine powder into the solution, carrying out ultrasonic treatment for 30min, filtering and drying to obtain film-plated fine powder, wherein the mass ratio of the aluminum isopropoxide to the isopropanol is 2:6, the stirring speed is 150r/min, the concentration of the fine powder in the solution is 25g/L, the ultrasonic treatment temperature is 70 ℃, the ultrasonic frequency is 70kHz, and the drying temperature is 83 ℃; and b3, spraying the film-coated fine powder into a reaction kettle, ventilating and purging for 3 hours, and then performing secondary nitrogen purging treatment for 4 hours to obtain aluminum hydroxide-coated aluminum oxide, namely the aluminum composite flame retardant, wherein the ventilating and purging adopts nitrogen containing water vapor, the volume ratio of the water vapor to the nitrogen is 1:25, the temperature is 85 ℃, and the nitrogen purging adopts dry nitrogen, and the temperature is 130 ℃.
The coupling agent adopts monoalkoxy titanate.
The stabilizer adopts polyester wax.
The preparation method of the color master batch comprises the following steps:
step 1, adding dopamine hydrochloride into ethanol, stirring uniformly at 55 ℃ to form dissolution, then adding a filler and a flame retardant, continuously stirring for 25min, drying, and performing self-polymerization reaction in an alkaline humid environment to obtain a coated filler and a coated flame retardant, wherein the humidity in the alkaline humid environment is 10%, the alkaline pH is 8.5, and the temperature is 65 ℃;
step 2, uniformly mixing polypropylene resin, polylactic acid, coating filler and coating flame retardant, and then adding a dispersing agent, the flame retardant and a stabilizing agent to stir for 3 hours at a high speed to obtain a mixture;
Step3, plasticizing and extruding the mixture by using a screw extruder, wherein the extruder adopts 5 temperature areas, and the temperature is 170 ℃, 180 ℃ and 190 ℃ in sequence;
and 4, cooling the extrudate, and granulating to obtain the color master batch.
According to detection, the limiting oxygen index of the color master batch prepared by the embodiment is 31%, the vertical combustion grade is V-0, the heat-resistant temperature is 342 ℃, no precipitation is generated on the surface of the color master batch after 48 hours of boiling water digestion, and the limiting oxygen index does not drop after 150 hours of continuous baking at 120 ℃. The color master batch has smooth appearance, no obvious color difference and no particle adhesion.
It is to be understood that the foregoing detailed description of the invention is merely illustrative of the invention and is not limited to the embodiments of the invention. It will be understood by those of ordinary skill in the art that the present invention may be modified or substituted for elements thereof to achieve the same technical effects; as long as the use requirement is met, the invention is within the protection scope of the invention.
Claims (6)
1. The preparation method of the special coating color master batch for the outdoor tarpaulin is characterized by comprising the following steps of: the preparation method comprises the following steps of:
40-80 parts of polypropylene resin, 20-30 parts of filler, 5-10 parts of dopamine hydrochloride, 5-10 parts of dispersing agent, 10-20 parts of polylactic acid, 8-15 parts of flame retardant, 2-5 parts of coupling agent and 2-4 parts of stabilizer;
The filler adopts a titanium dioxide-zinc oxide composite system, the molar ratio of titanium dioxide to zinc oxide is 2-3:1, and the preparation method of the titanium dioxide-zinc oxide composite system comprises the following steps: a1, dissolving zinc chloride in glycerol, stirring uniformly until the zinc chloride is completely dissolved, slowly adding sodium hydroxide, performing ultrasonic dispersion for 20-30min, performing centrifugal filtration, and washing with ethanol to obtain nano zinc hydroxide, wherein the concentration of the zinc chloride in the glycerol is 100-200g/L, the molar amount of the sodium hydroxide is 200-210% of that of the zinc chloride, the ultrasonic frequency of ultrasonic dispersion is 50-60kHz, and the temperature is 40-60 ℃; a2, adding nano zinc hydroxide into n-butyl titanate, homogenizing and stirring to form slurry, pouring into a mortar, fully mixing and wet grinding for 10min to obtain coated zinc hydroxide, wherein the molar ratio of the zinc hydroxide to the n-butyl titanate is 1:2-3, and the wet grinding temperature is 40-50 ℃; a3, spraying the zinc hydroxide film into a water-containing reaction kettle to react for 20-30min, and then purging for 3-4h to obtain a prefabricated zinc oxide-titanium dioxide composite system; the atmosphere of the water-containing reaction kettle is a water-nitrogen mixed atmosphere, the volume ratio of water is 5-7%, and the reaction temperature is 90-100 ℃; the purging treatment adopts dry nitrogen, and the temperature of the nitrogen is 130-170 ℃; a4, carrying out microwave reaction on the prefabricated zinc oxide-titanium dioxide composite system in a reaction kettle for 2-4 hours to obtain a zinc oxide-titanium dioxide composite body, wherein the temperature of the microwave reaction is 180-200 ℃, and the microwave power is 300-500W;
The flame retardant adopts an aluminum composite flame retardant, wherein the aluminum composite flame retardant consists of aluminum oxide and aluminum hydroxide, and the aluminum hydroxide wraps the aluminum oxide; the preparation method of the aluminum composite flame retardant comprises the following steps: b1, adding aluminum hydroxide into a mortar, and carrying out constant-temperature grinding treatment for 2-3 hours to obtain fine powder, wherein the constant-temperature grinding temperature is 180-190 ℃ and the grinding pressure is 0.3-0.5MPa; adding aluminum isopropoxide into isopropanol, stirring uniformly to form a solution, adding the fine powder into the solution, carrying out ultrasonic treatment for 20-40min, filtering and drying to obtain film-plated fine powder, wherein the mass ratio of the aluminum isopropoxide to the isopropanol is 2:5-7, the stirring speed is 100-200r/min, the concentration of the fine powder in the solution is 20-30g/L, the ultrasonic treatment temperature is 50-80 ℃, the ultrasonic frequency is 50-80kHz, and the drying temperature is 80-85 ℃; b3, spraying the film-coated fine powder into a reaction kettle, and carrying out ventilation and blowing for 2-3h, and then carrying out secondary nitrogen blowing for 3-5h to obtain aluminum hydroxide coated aluminum oxide, namely the aluminum composite flame retardant, wherein the ventilation and blowing adopts nitrogen containing water vapor, the volume ratio of the water vapor to the nitrogen is 1:20-30, the temperature is 80-90 ℃, the nitrogen blowing adopts dry nitrogen, and the temperature is 120-140 ℃;
The preparation method of the color master batch comprises the following steps:
Step 1, adding dopamine hydrochloride into ethanol, stirring uniformly at 50-60 ℃ to form dissolution, then adding filler and flame retardant into the mixture, continuously stirring the mixture for 20-30min, and carrying out self-polymerization reaction in an alkaline wet environment after drying to obtain a coating filler and a coating flame retardant;
Step 2, uniformly mixing polypropylene resin, polylactic acid, coating filler and coating flame retardant, and then adding a dispersing agent and a stabilizing agent to stir at a high speed for 2-3 hours to obtain a mixture;
Step3, plasticizing and extruding the mixture by using a screw extruder, wherein the extruder adopts 5 temperature areas, and the temperature is 170 ℃, 180 ℃ and 190 ℃ in sequence;
and 4, cooling the extrudate, and granulating to obtain the color master batch.
2. The preparation method of the special film-coating color master batch for the outdoor tarpaulin, which is characterized by comprising the following steps of: the polypropylene resin is a composite polypropylene resin formed by combining copolymerized polypropylene and homopolymerized polypropylene, and the mass ratio of the copolymerized polypropylene to the homopolymerized polypropylene is 2:3-5.
3. The preparation method of the special film-coating color master batch for the outdoor tarpaulin, which is characterized by comprising the following steps of: the dispersing agent adopts a mixture of heavy calcium carbonate and stearic acid amide, and the mass ratio of the heavy calcium carbonate to the stearic acid amide is 1-2:4.
4. The preparation method of the special film-coating color master batch for the outdoor tarpaulin, which is characterized by comprising the following steps of: the coupling agent adopts monoalkoxy titanate.
5. The preparation method of the special film-coating color master batch for the outdoor tarpaulin, which is characterized by comprising the following steps of: the stabilizer adopts polyester wax.
6. The preparation method of the special film-coating color master batch for the outdoor tarpaulin, which is characterized by comprising the following steps of: the humidity in the alkaline humid environment in the step 1 is 10%, the alkaline pH is 8.5, and the temperature is 60-70 ℃.
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