CN114539812A - Inorganic powder, preparation method thereof and reinforced and toughened polypropylene modified master batch - Google Patents
Inorganic powder, preparation method thereof and reinforced and toughened polypropylene modified master batch Download PDFInfo
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- CN114539812A CN114539812A CN202210196622.0A CN202210196622A CN114539812A CN 114539812 A CN114539812 A CN 114539812A CN 202210196622 A CN202210196622 A CN 202210196622A CN 114539812 A CN114539812 A CN 114539812A
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- slurry
- wollastonite
- phase coating
- powder
- master batch
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- 239000000843 powder Substances 0.000 title claims abstract description 97
- -1 polypropylene Polymers 0.000 title claims abstract description 71
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 63
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 62
- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000010456 wollastonite Substances 0.000 claims abstract description 64
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 64
- 239000002002 slurry Substances 0.000 claims abstract description 54
- 239000007791 liquid phase Substances 0.000 claims abstract description 41
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 239000003607 modifier Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 13
- 235000012239 silicon dioxide Nutrition 0.000 claims description 35
- 239000005543 nano-size silicon particle Substances 0.000 claims description 34
- 238000002156 mixing Methods 0.000 claims description 32
- 239000002270 dispersing agent Substances 0.000 claims description 19
- 239000006255 coating slurry Substances 0.000 claims description 15
- 239000007822 coupling agent Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000001238 wet grinding Methods 0.000 claims description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 8
- 235000013539 calcium stearate Nutrition 0.000 claims description 8
- 239000008116 calcium stearate Substances 0.000 claims description 8
- 239000003945 anionic surfactant Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- YDZIJQXINJLRLL-UHFFFAOYSA-N 2-hydroxydodecanoic acid Chemical compound CCCCCCCCCCC(O)C(O)=O YDZIJQXINJLRLL-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 22
- 238000000227 grinding Methods 0.000 description 18
- 238000003756 stirring Methods 0.000 description 18
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 14
- 239000011324 bead Substances 0.000 description 11
- BTURAGWYSMTVOW-UHFFFAOYSA-M sodium dodecanoate Chemical compound [Na+].CCCCCCCCCCCC([O-])=O BTURAGWYSMTVOW-UHFFFAOYSA-M 0.000 description 8
- 229940082004 sodium laurate Drugs 0.000 description 8
- 239000001993 wax Substances 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 150000004645 aluminates Chemical class 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009837 dry grinding Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 2
- HXLAEGYMDGUSBD-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]propan-1-amine Chemical compound CCO[Si](C)(OCC)CCCN HXLAEGYMDGUSBD-UHFFFAOYSA-N 0.000 description 1
- ZYAASQNKCWTPKI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propan-1-amine Chemical compound CO[Si](C)(OC)CCCN ZYAASQNKCWTPKI-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HTDKEJXHILZNPP-UHFFFAOYSA-N dioctyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OCCCCCCCC HTDKEJXHILZNPP-UHFFFAOYSA-N 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- LEHZBQJZYMFYMK-UHFFFAOYSA-L disodium;hexadecyl phosphate Chemical compound [Na+].[Na+].CCCCCCCCCCCCCCCCOP([O-])([O-])=O LEHZBQJZYMFYMK-UHFFFAOYSA-L 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 description 1
- 239000004209 oxidized polyethylene wax Substances 0.000 description 1
- 235000013873 oxidized polyethylene wax Nutrition 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 102220040412 rs587778307 Human genes 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K9/04—Ingredients treated with organic substances
-
- 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
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/10—Treatment with macromolecular organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/12—Treatment with organosilicon compounds
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- 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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides inorganic powder, a preparation method thereof and a reinforced and toughened polypropylene modified master batch, belonging to the technical field of polypropylene materials. According to the invention, the nano-silica slurry, the wollastonite micro powder slurry and the long-chain liquid phase coating agent are mixed for liquid phase coating, so that the nano-silica can be uniformly and stably coated on the surface of the wollastonite micro powder, and can be uniformly dispersed in the polypropylene resin after being dried and modified by the surface modifier, thereby improving the strength and toughness of the polypropylene modified master batch. The inorganic powder is used as the filler, and the obtained polypropylene modified master batch has good strength and toughness, and the impact strength of the polypropylene modified master batch is 6.7-7.2 kJ/m2The tensile strength is 42.2-44.3 MPa, the elongation at break is 52.5-66.5%, the bending strength is 36.5-38.5 MPa, and the bending strength is 0.72-0.82 GPa.
Description
Technical Field
The invention relates to the technical field of polypropylene materials, in particular to inorganic powder and a preparation method thereof, and a reinforced and toughened polypropylene modified master batch.
Background
The polypropylene has good comprehensive performance, rich raw material sources and simple production process, is one of plastic varieties with the fastest development speed, has the output which is only second to that of polyethylene and polyvinyl chloride, and is widely applied to the fields of automobiles, household appliances, industrial parts and the like. Polypropylene is also a main synthetic resin for producing modified master batches, inorganic powder and other related auxiliary agents are usually added into polypropylene resin to prepare filling modified master batches in the prior art, and the proper addition of the inorganic powder does not influence the performance of plastic products, can greatly reduce the production cost, and can play a role in improving and even improving the related performance of the plastic products.
The traditional polypropylene functional modified master batch usually adopts inorganic powder such as calcium carbonate, talcum powder, glass fiber, mica, wollastonite and the like as filler, and the inorganic powder is directly added into polypropylene resin in the actual production process. The production process is relatively single and rough, a large amount of one or more inorganic powders are directly added, the uniform dispersion of the inorganic powders in the polypropylene resin is difficult to ensure, the strength and the toughness of the polypropylene modified master batch are greatly reduced, and the use effect is not ideal.
Disclosure of Invention
In view of the above, the present invention aims to provide an inorganic powder, a preparation method thereof, and a reinforced and toughened polypropylene modified master batch, wherein the inorganic powder provided by the present invention can be uniformly dispersed in a polypropylene resin, and the strength and toughness of the polypropylene modified master batch are improved.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of inorganic powder, which comprises the following steps:
mixing nano silicon dioxide, a first dispersing agent and water to obtain nano silicon dioxide slurry;
mixing wollastonite powder, a second dispersing agent and water, and carrying out wet grinding to obtain wollastonite micro powder slurry;
mixing the nano silicon dioxide slurry, wollastonite micro powder slurry and a long-chain liquid phase coating agent, and carrying out liquid phase coating to obtain liquid phase coating slurry;
drying the liquid-phase coating slurry and mixing the dried liquid-phase coating slurry with a surface modifier to obtain inorganic powder;
the surface modifier comprises a silane coupling agent and an anionic surfactant.
Preferably, the specific surface area of the nano silicon dioxide is 120-150 m2And the solid content of the nano silicon dioxide slurry is 30-35 wt%.
Preferably, the rotation speed of the wet grinding is 2200 to 2800rpm, and the temperature is 60 to 70 ℃.
Preferably, the solid content of the wollastonite micro powder slurry is 65-75%, and the particle size of the wollastonite micro powder in the wollastonite micro powder slurry is 4000-5000 meshes.
Preferably, in the liquid-phase coating slurry, the mass ratio of the wollastonite micro powder to the nano silicon dioxide is 3-5: 1.
preferably, the long-chain liquid phase coating agent is one or more of sodium stearate, calcium stearate, hydroxy lauric acid and polymeric alcohol;
the liquid phase coating speed is 400-1600 rpm, the time is 45-60 min, and the temperature is 75-85 ℃.
Preferably, the mass ratio of the sum of the mass of the nano silicon dioxide and the wollastonite powder to the surface modifier is 1000: 8-10.
The invention provides inorganic powder prepared by the preparation method, which comprises wollastonite micro powder and nano-silica coated on the surface of the wollastonite micro powder, wherein the exposed surfaces of the wollastonite micro powder and the nano-silica are also modified with surface modifiers, and the surface modifiers comprise silane coupling agents and anionic surfactants.
The invention provides a reinforced and toughened polypropylene modified master batch which comprises the following components in parts by mass:
the inorganic powder is the inorganic powder.
The invention provides a preparation method of the reinforced and toughened polypropylene modified master batch, which comprises the following steps:
mixing polypropylene resin, POE resin, inorganic powder, a coupling agent, a lubricant and a dispersing agent, and performing double-screw extrusion to obtain the reinforced and toughened polypropylene modified master batch.
The invention provides a preparation method of inorganic powder, which comprises the steps of mixing nano silicon dioxide slurry, wollastonite micro powder slurry and a long-chain liquid phase coating agent for liquid phase coating, wherein the liquid phase coating can accurately control chemical composition, has good dispersibility, is not easy to agglomerate in a liquid phase environment, can realize that the nano silicon dioxide is uniformly and stably coated on the surface of the wollastonite micro powder, and can be uniformly dispersed in polypropylene resin after being dried and modified by a surface modifier, so that the strength and the toughness of a polypropylene modified master batch are improved.
The invention provides a reinforced and toughened polypropylene modified master batch which comprises the following components in parts by mass: 15-25 parts of polypropylene resin; 3-6 parts of POE resin; 50-75 parts of inorganic powder; 1-3 parts of a coupling agent; 2-4 parts of a lubricant; 3-6 parts of a dispersing agent. The present invention uses the inorganic powder as a filler and can polymerizeThe propylene resin is uniformly dispersed, and the strength and the toughness of the polypropylene modified master batch are improved. The results of the examples show that the impact strength of the reinforced and toughened polypropylene modified master batch obtained by the invention is 6.7-7.2 kJ/m2The tensile strength is 42.2-44.3 MPa, the elongation at break is 52.5-66.5%, the bending strength is 36.5-38.5 MPa, and the bending strength is 0.72-0.82 GPa.
Detailed Description
The invention provides a preparation method of inorganic powder, which comprises the following steps:
mixing nano silicon dioxide, a first dispersing agent and water to obtain nano silicon dioxide slurry;
mixing wollastonite powder, a second dispersing agent and water, and carrying out wet grinding to obtain wollastonite micro powder slurry;
mixing the nano silicon dioxide slurry, wollastonite micro powder slurry and a long-chain liquid phase coating agent, and carrying out liquid phase coating to obtain liquid phase coating slurry;
and drying the liquid-phase coating slurry and mixing the dried liquid-phase coating slurry with a surface modifier to obtain inorganic powder.
The nano-silica slurry is prepared by mixing nano-silica, a first dispersing agent and water. In the invention, the particle size of the nano silicon dioxide is preferably 20-60 nm, more preferably 30-40 nm, and the specific surface area is preferably 120-150 m2A concentration of 130 to 140m2/g。
In the present invention, the first dispersant is preferably one or more selected from the group consisting of ethylene glycol, monoethylene glycol, polyethylene glycol, triethanolamine, and triisoolamine. In the invention, the mass ratio of the first dispersing agent to the nano silicon dioxide is preferably 8-10: 1000, more preferably 9: 1000.
in the present invention, the mixing is preferably performed by stirring. In the invention, the solid content of the nano-silica slurry is preferably 30-35 wt%, and more preferably 32-34 wt%.
The wollastonite micro powder slurry is prepared by mixing wollastonite powder, a second dispersing agent and water and grinding the mixture by a wet method. In the invention, the particle size of the wollastonite powder is preferably 400 to 600 meshes, and more preferably 500 meshes. In the present invention, the preparation method of the wollastonite powder preferably comprises the following steps:
and sequentially crushing and dry grinding the wollastonite raw ore to obtain wollastonite powder.
The method of disruption described in the present invention is not particularly limited, and disruption means well known to those skilled in the art may be used. In the invention, the grinding aid for dry grinding is preferably polyethylene glycol, and the rotating speed for dry grinding is preferably 1200-1500 rpm.
In the invention, the second dispersing agent is preferably one or more of sodium polyacrylate, ammonium polyacrylate, sodium hexametaphosphate, polyethylene glycol, sodium dodecyl sulfate and sodium dodecyl sulfate. In the invention, the mass ratio of the second dispersing agent to the wollastonite powder is preferably 6-8: 1000, more preferably 7: 1000.
the present invention does not require any particular mixing means, and mixing means known to those skilled in the art may be used.
In the invention, the rotation speed of the wet grinding is preferably 2200 to 2800rpm, more preferably 2400 to 2600 rpm; the temperature is preferably 60 to 70 ℃, and more preferably 65 ℃. In the present invention, the wet-milled grinding media are zirconia beads. In the invention, the zirconia beads preferably comprise large zirconia beads, medium zirconia beads and small zirconia beads, the particle size of the large zirconia beads is preferably 1.8-2.0 mm, the filling rate in a cavity of wet grinding equipment is preferably 10-20%, the particle size of the medium zirconia beads is preferably 1.2-1.4 mm, the filling rate in the cavity of wet grinding equipment is preferably 20-30%, the particle size of the small zirconia beads is preferably 1.0-1.2 mm, and the filling rate in the cavity of wet grinding equipment is preferably 25-35%. In the present invention, after the wet grinding, the particle size of wollastonite in the obtained wollastonite fine powder slurry is preferably 4000 to 5000 mesh, and more preferably 4500 mesh.
In the invention, the solid content of the wollastonite micropowder slurry is preferably 65-75%, and more preferably 70%.
After the nano silicon dioxide slurry and the wollastonite micro powder slurry are obtained, the nano silicon dioxide slurry, the wollastonite micro powder slurry and the long-chain liquid phase coating agent are mixed for liquid phase coating to obtain the liquid phase coating slurry. In the invention, in the liquid-phase coating slurry, the mass ratio of wollastonite to nano-silica is preferably 3-5: 1, more preferably 4: 1.
in the invention, the long-chain liquid phase coating agent is preferably one or more of sodium stearate, calcium stearate, hydroxy lauric acid and polymeric alcohol. In the invention, the mass ratio of the sum of the mass of the nano silicon dioxide and the wollastonite powder to the long-chain liquid phase coating agent is preferably 1000: 5-7, and more preferably 1000: 6. In the invention, the long-chain liquid phase coating agent has hygroscopicity and aggregation effect of powder under the condition of aqueous solution.
In the present invention, the mixing is preferably performed by stirring. In the present invention, the liquid phase coating is preferably performed in a stirring mixer. In the invention, the rotating speed of the liquid phase coating is preferably 400-1600 rpm, more preferably 800-1200 rpm; the time is preferably 45-60 min, and more preferably 50-55 min; the temperature is preferably 75-85 ℃, and more preferably 80 ℃.
After the obtained liquid phase coating slurry is obtained, the liquid phase coating slurry is dried and then mixed with a surface modifier to obtain inorganic powder. In the present invention, the drying method is preferably flash drying. The invention has no special requirements on the specific operation of the flash evaporation drying, and the powder is dried to constant weight.
In the present invention, the surface modifier preferably includes a silane coupling agent and an anionic surfactant. In the invention, the silane coupling agent is preferably one or more of gamma-aminopropyltrimethoxysilane, gamma-aminopropylmethyldimethoxysilane, gamma-aminopropylmethyldiethoxysilane, gamma-aminopropyltriethoxysilane, gamma-diethylaminomethyltriethoxysilane and gamma-diethylenetriaminopropyltrimethoxysilane. In the present invention, the anionic surfactant is preferably one or more of linear alkyl sodium sulfonate, alkenyl sodium sulfonate, sodium dodecyl sulfate, sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate and sodium cetyl phosphate. In the invention, the mass ratio of the silane coupling agent to the anionic surfactant is preferably 2-4: 1, and more preferably 3: 1.
In the invention, the mass ratio of the sum of the mass of the nano silicon dioxide and the wollastonite powder to the surface modifier is preferably 1000: 8-10, and more preferably 1000: 9.
In the present invention, the mixing is preferably carried out in a surface modifier.
The invention provides inorganic powder prepared by the preparation method, which comprises wollastonite micro powder and nano silicon dioxide coated on the surface of the wollastonite micro powder, wherein the surface of the inorganic powder is modified with a surface modifier.
In the invention, the coating rate of the nanometer silicon dioxide to the wollastonite micro powder is preferably more than or equal to 97%. In the present invention, the particle size of the inorganic powder is preferably 2 to 3 μm.
The invention provides a reinforced and toughened polypropylene modified master batch which comprises the following components in parts by mass:
the inorganic powder is the inorganic powder.
The reinforced and toughened polypropylene modified master batch provided by the invention comprises 15-25 parts by mass of polypropylene resin, preferably 18-22 parts by mass, and more preferably 20 parts by mass. The polypropylene resin is copolymerized polypropylene ethylene, and the specific model is T30S.
Based on the mass fraction of the polypropylene resin, the reinforced and toughened polypropylene modified master batch provided by the invention comprises 3-6 parts of POE resin, and preferably 4-5 parts. In the invention, the POE resin is produced by exxon Mobil, and the specific model is 6202.
Based on the mass fraction of the polypropylene resin, the reinforced and toughened polypropylene modified master batch provided by the invention comprises 50-75 parts of inorganic filler, preferably 55-70 parts, and more preferably 60-65 parts. In the present invention, the inorganic powder is the above inorganic powder.
Based on the mass fraction of the polypropylene resin, the reinforced and toughened polypropylene modified master batch provided by the invention comprises 1-3 parts of coupling agent, and more preferably 2 parts. In the invention, the coupling agent is preferably one or more of a silane coupling agent, an aluminate coupling agent and a titanate coupling agent. In the invention, the silane coupling agent is preferably one or more of gamma-aminopropyltriethoxysilane (KH550), gamma- (2, 3-glycidoxy) propyltrimethoxysilane (KH560) and methacryloxypropyltrimethoxysilane (KH 570); the titanate coupling agent is preferably one or more of isopropyldioleate acyloxy (dioctylphosphate acyloxy) titanate, isopropyltris (dioctylphosphate) titanate and bis (dioctyloxypyrophosphate) ethylene titanate. In the present invention, the aluminate coupling agent is preferably one or more of an oxyacetoxy aluminate, a dimethyleneoxy aluminate and a distearoyl oxy isopropoxy aluminate.
The reinforced and toughened polypropylene modified master batch provided by the invention comprises 2-4 parts of lubricant, preferably 3 parts by mass based on the mass fraction of the polypropylene resin. In the invention, the lubricant is preferably one or more of calcium stearate, zinc stearate, ethylene bis stearamide, oleamide and erucamide.
Based on the mass fraction of the polypropylene resin, the reinforced and toughened polypropylene modified master batch provided by the invention comprises 3-6 parts of a dispersing agent, and preferably 4-5 parts. In the invention, the dispersant is preferably one or more of polyethylene wax, polypropylene wax, EVA wax, oxidized polyethylene wax and solid paraffin.
The invention provides a preparation method of the reinforced and toughened polypropylene modified master batch, which comprises the following steps:
mixing the polypropylene resin, the inorganic powder, the coupling agent, the lubricant and the dispersant, and performing double-screw extrusion to obtain the reinforced and toughened polypropylene modified master batch.
In the present invention, the mixing is preferably performed by stirring; in the invention, the stirring and mixing temperature is preferably 110-120 ℃, and the time is preferably 10-15 min.
In the invention, the temperature of the twin-screw extrusion is preferably 180-210 ℃, more preferably 190-200 ℃, and the screw rotating speed is preferably 250-350 rpm, more preferably 300 rpm. In the invention, the length-diameter ratio of a double-screw extruder used for double-screw extrusion is preferably 48-52; the present invention preferably uses a screw combination having an enhanced dispersion type.
In the present invention, after the twin-screw extrusion, the present invention preferably performs cooling and granulation. The present invention does not require any particular means of cooling and granulation, as is well known to those skilled in the art.
The following will describe in detail an inorganic powder, a preparation method thereof, and a reinforced and toughened polypropylene modified masterbatch provided by the present invention with reference to the following examples, but they should not be construed as limiting the scope of the present invention.
Example 1
(1) Preparing nano silicon dioxide slurry:
selecting the specific surface area of 120-150 m2The solid content of the nano-silica slurry is 30 wt% by mixing the nano-silica, sodium polyacrylate and water.
(2) Preparing superfine wollastonite slurry:
crushing high-quality wollastonite raw ore, adding a grinding aid, grinding to 400-600 meshes by a dry method, adding sodium dodecyl sulfate and water to prepare slurry with the solid content of 65%, grinding by a wet method at constant temperature at 60 ℃, wherein the grinding medium is zirconia beads with different proportions and sizes, and the grinding speed is 2200rpm, so that the wollastonite slurry with the particle size of 4000-5000 meshes is finally obtained.
(3) Liquid phase coating is carried out on the prepared wollastonite slurry and the nano silicon dioxide slurry, wherein the mass ratio of the wollastonite to the nano silicon dioxide is 3:1, carrying out flash evaporation drying, depolymerization and scattering on the slurry, adding methacryloxypropyltrimethoxysilane (KH570) with the mass of 8 per thousand of the mass of the powder and sodium laurate into the slurry, and carrying out surface modification treatment to obtain the inorganic powder, wherein the mass ratio of the methacryloxypropyltrimethoxysilane to the sodium laurate is 3: 1.
(4) Weighing 65 parts of prepared inorganic powder according to a formula, placing the inorganic powder into a mixer, adding 1.5 parts of a coupling agent KH570, heating to 105 ℃, stirring at the rotating speed of 1000rpm for 3min, then sequentially adding 25 parts of copolymerized polypropylene, 4 parts of POE resin, 1.5 parts of zinc stearate and 2 parts of calcium stearate, stirring at the rotating speed of 1000rpm for 5min, finally adding 5 parts of polyethylene wax, stirring at the rotating speed of 1000rpm for 8min, feeding into a double-screw extruder for plasticizing, mixing, extruding and granulating to obtain a modified master batch for reinforcing and toughening polypropylene, wherein the temperature intervals of the double-screw extruder are respectively as follows: 120 ℃ in the first zone, 180 ℃ in the second zone, 185 ℃ in the third zone, 200 ℃ in the fourth zone, 200 ℃ in the fifth zone, 205 ℃ in the sixth zone, 205 ℃ in the seventh zone, 210 ℃ in the eighth zone, 210 ℃ in the ninth zone, 210 ℃ in the head, and the feeding speed: 28rpm, extruder speed: 300 rpm.
Example 2
(1) Preparing nano silicon dioxide slurry:
selecting the specific surface area of 120-150 m2The nano-silica of per gram, sodium polyacrylate and water are prepared into nano-silica slurry with solid content of 335%.
(2) Preparing superfine wollastonite slurry:
crushing high-quality wollastonite raw ore, adding a grinding aid, grinding to 400-600 meshes by a dry method, adding a second dispersing agent sodium dodecyl sulfate and water to prepare slurry with the solid content of 75%, grinding by a wet method at constant temperature of 70 ℃, wherein the grinding medium is zirconia beads with different proportions and sizes, and the grinding speed is 2800rpm, so as to finally obtain the wollastonite slurry with the mesh size of 4000-5000.
(3) Performing liquid phase coating on the prepared wollastonite slurry and the nano silicon dioxide slurry, wherein the mass ratio of the wollastonite to the nano silicon dioxide is 4:1, carrying out flash evaporation drying, depolymerization and scattering on the slurry, adding methacryloxypropyltrimethoxysilane (KH570) with the mass of 9 per thousand of the mass of the powder and sodium laurate into the slurry, and carrying out surface modification treatment to obtain the inorganic powder, wherein the mass ratio of the methacryloxypropyltrimethoxysilane to the sodium laurate is 3: 1.
(4) Weighing 65 parts of prepared inorganic powder according to a formula, placing the inorganic powder into a mixer, adding 1.5 parts of a coupling agent KH570, heating to 105 ℃, stirring at the rotating speed of 1000rpm for 3min, then sequentially adding 25 parts of copolymerized polypropylene, 4 parts of POE resin, 1.5 parts of zinc stearate and 2 parts of calcium stearate, stirring at the rotating speed of 1000rpm for 5min, finally adding 5 parts of polyethylene wax, stirring at the rotating speed of 1000rpm for 8min, feeding into a double-screw extruder for plasticizing, mixing, extruding and granulating to obtain a modified master batch for reinforcing and toughening polypropylene, wherein the temperature intervals of the double-screw extruder are respectively as follows: 120 ℃ in the first zone, 180 ℃ in the second zone, 185 ℃ in the third zone, 200 ℃ in the fourth zone, 200 ℃ in the fifth zone, 205 ℃ in the sixth zone, 205 ℃ in the seventh zone, 210 ℃ in the eighth zone, 210 ℃ in the ninth zone, 210 ℃ in the head, and the feeding speed: 28rpm, extruder speed: 300 rpm.
Example 3
(1) Preparing nano silicon dioxide slurry:
selecting the specific surface area of 120-150 m2The nano-silica/g, sodium polyacrylate and water are prepared into nano-silica slurry with solid content of 32%.
(2) Preparing superfine wollastonite slurry:
crushing high-quality wollastonite raw ore, adding a grinding aid, grinding the crushed raw ore to 400-600 meshes by a dry method, adding sodium dodecyl sulfate and water to prepare slurry with the solid content of 70%, and grinding the slurry at the constant temperature of 65 ℃ by a wet method, wherein the grinding medium is zirconia beads with different proportions and sizes, and the grinding speed is 2500rpm, so that the wollastonite slurry with the particle size of 4000 plus 5000 meshes is finally obtained.
(3) Performing liquid phase coating on the prepared wollastonite slurry and the nano silicon dioxide slurry, wherein the mass ratio of the wollastonite to the nano silicon dioxide is 5: 1, flash drying, depolymerizing and scattering the slurry, adding methacryloxypropyltrimethoxysilane (KH570) with the mass of 10 per mill of the powder and sodium laurate into the slurry, and carrying out surface modification treatment on the mixture to obtain inorganic powder, wherein the mass ratio of the methacryloxypropyltrimethoxysilane to the sodium laurate is 3: 1.
(4) Weighing 65 parts of prepared inorganic powder according to a formula, placing the inorganic powder into a mixer, adding 1.5 parts of a coupling agent KH570, heating to 105 ℃, stirring at the rotating speed of 1000rpm for 3min, then sequentially adding 25 parts of copolymerized polypropylene, 4 parts of POE resin, 1.5 parts of zinc stearate and 2 parts of calcium stearate, stirring at the rotating speed of 1000rpm for 5min, finally adding 5 parts of polyethylene wax, stirring at the rotating speed of 1000rpm for 8min, feeding into a double-screw extruder for plasticizing, mixing, extruding and granulating to obtain a modified master batch for reinforcing and toughening polypropylene, wherein the temperature intervals of the double-screw extruder are respectively as follows: 120 ℃ in the first zone, 180 ℃ in the second zone, 185 ℃ in the third zone, 200 ℃ in the fourth zone, 200 ℃ in the fifth zone, 205 ℃ in the sixth zone, 205 ℃ in the seventh zone, 210 ℃ in the eighth zone, 210 ℃ in the ninth zone, 210 ℃ in the head, and the feeding speed: 28rpm, extruder speed: 300 rpm.
Comparative example
Mixing 2000-mesh wollastonite slurry and nano silicon dioxide according to a mass ratio of 4:1, mixing and stirring at a high speed, adding 9 per mill of the mass of the powder, namely methacryloxypropyltrimethoxysilane (KH570) and sodium laurate, and carrying out surface modification treatment to obtain the composite inorganic powder, wherein the mass ratio of the methacryloxypropyltrimethoxysilane to the sodium laurate is 3: 1.
Weighing 65 parts of prepared inorganic powder according to a formula, placing the inorganic powder into a mixer, adding 1.5 parts of a coupling agent KH570, heating to 105 ℃, stirring at the rotating speed of 1000rpm for 3min, then sequentially adding 25 parts of copolymerized polypropylene, 4 parts of POE resin, 1.5 parts of zinc stearate and 2 parts of calcium stearate, stirring at the rotating speed of 1000rpm for 5min, finally adding 5 parts of polyethylene wax, stirring at the rotating speed of 1000rpm for 8min, feeding into a double-screw extruder for plasticizing, mixing, extruding and granulating to obtain a modified master batch for reinforcing and toughening polypropylene, wherein the temperature intervals of the double-screw extruder are respectively as follows: 120 ℃ in the first zone, 180 ℃ in the second zone, 185 ℃ in the third zone, 200 ℃ in the fourth zone, 200 ℃ in the fifth zone, 205 ℃ in the sixth zone, 205 ℃ in the seventh zone, 210 ℃ in the eighth zone, 210 ℃ in the ninth zone, 210 ℃ in the head, and the feeding speed: 28rpm, extruder speed: 300 rpm.
Performance test
The modified master batch prepared in the above examples and comparative examples was mixed with the base resin (PP) in a ratio of 2: the proportion of 1 is processed into standard splines, and performance tests are carried out according to GB/T1040, GB/T1843 and GB/T1042, and the tested performance data are shown in Table 1.
Table 1 mechanical property index test results of examples 1-3 and comparative examples
As can be seen from Table 1, the inorganic powder provided by the invention can effectively improve the strength and toughness of the polypropylene modified master batch.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A preparation method of inorganic powder comprises the following steps:
mixing nano silicon dioxide, a first dispersing agent and water to obtain nano silicon dioxide slurry;
mixing wollastonite powder, a second dispersing agent and water, and carrying out wet grinding to obtain wollastonite micro powder slurry;
mixing the nano silicon dioxide slurry, wollastonite micro powder slurry and a long-chain liquid phase coating agent, and carrying out liquid phase coating to obtain liquid phase coating slurry;
drying the liquid-phase coating slurry and mixing the dried liquid-phase coating slurry with a surface modifier to obtain inorganic powder;
the surface modifier comprises a silane coupling agent and an anionic surfactant.
2. The preparation method of claim 1, wherein the nano-silica has a specific surface area of 120 to 150m2And the solid content of the nano silicon dioxide slurry is 30-35 wt%.
3. The method according to claim 1, wherein the wet grinding is performed at a rotation speed of 2200 to 2800rpm at a temperature of 60 to 70 ℃.
4. The preparation method according to claim 1 or 3, characterized in that the solid content of the wollastonite micro powder slurry is 65-75%, and the particle size of the wollastonite micro powder in the wollastonite micro powder slurry is 4000-5000 meshes.
5. The preparation method according to claim 1, wherein the mass ratio of wollastonite micropowder to nano silica in the liquid-phase coating slurry is 3-5: 1.
6. the preparation method according to claim 1, wherein the long-chain liquid phase coating agent is one or more of sodium stearate, calcium stearate, hydroxy lauric acid and polymeric alcohol;
the liquid phase coating speed is 400-1600 rpm, the time is 45-60 min, and the temperature is 75-85 ℃.
7. The preparation method of claim 1, wherein the mass ratio of the sum of the mass of the nano silicon dioxide and the wollastonite powder to the surface modifier is 1000: 8-10.
8. The inorganic powder prepared by the preparation method of any one of claims 1 to 7 comprises wollastonite micropowder and nano-silica coated on the surface of the wollastonite micropowder, wherein the exposed surfaces of the wollastonite micropowder and the nano-silica are modified with surface modifiers, and the surface modifiers comprise silane coupling agents and anionic surfactants.
9. The reinforced and toughened polypropylene modified master batch comprises the following components in parts by mass:
the inorganic powder according to claim 8.
10. A method for preparing a reinforced and toughened polypropylene modified master batch as claimed in claim 9, comprising the steps of:
mixing polypropylene resin, POE resin, inorganic powder, a coupling agent, a lubricant and a dispersing agent, and performing double-screw extrusion to obtain the reinforced and toughened polypropylene modified master batch.
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