CN118085452A - High-crystallization heat-resistant polypropylene and preparation method thereof - Google Patents
High-crystallization heat-resistant polypropylene and preparation method thereof Download PDFInfo
- Publication number
- CN118085452A CN118085452A CN202410222456.6A CN202410222456A CN118085452A CN 118085452 A CN118085452 A CN 118085452A CN 202410222456 A CN202410222456 A CN 202410222456A CN 118085452 A CN118085452 A CN 118085452A
- Authority
- CN
- China
- Prior art keywords
- phosphate
- nucleating agent
- antioxidant
- polypropylene
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- -1 polypropylene Polymers 0.000 title claims abstract description 142
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 82
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 82
- 238000002425 crystallisation Methods 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002667 nucleating agent Substances 0.000 claims abstract description 107
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 43
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 43
- 150000001875 compounds Chemical class 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 8
- 229910019142 PO4 Inorganic materials 0.000 claims description 40
- 239000010452 phosphate Substances 0.000 claims description 39
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 33
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 28
- 150000007942 carboxylates Chemical class 0.000 claims description 27
- CSJKPFQJIDMSGF-UHFFFAOYSA-K aluminum;tribenzoate Chemical compound [Al+3].[O-]C(=O)C1=CC=CC=C1.[O-]C(=O)C1=CC=CC=C1.[O-]C(=O)C1=CC=CC=C1 CSJKPFQJIDMSGF-UHFFFAOYSA-K 0.000 claims description 20
- ZGNIGAHODXRWIT-UHFFFAOYSA-K aluminum;4-tert-butylbenzoate Chemical compound [Al+3].CC(C)(C)C1=CC=C(C([O-])=O)C=C1.CC(C)(C)C1=CC=C(C([O-])=O)C=C1.CC(C)(C)C1=CC=C(C([O-])=O)C=C1 ZGNIGAHODXRWIT-UHFFFAOYSA-K 0.000 claims description 15
- KYQRDNYMKKJUTH-UHFFFAOYSA-N bicyclo[2.2.1]heptane-3,4-dicarboxylic acid Chemical class C1CC2(C(O)=O)C(C(=O)O)CC1C2 KYQRDNYMKKJUTH-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 7
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 5
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 4
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 claims description 3
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 3
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 3
- 235000010234 sodium benzoate Nutrition 0.000 claims description 3
- 239000004299 sodium benzoate Substances 0.000 claims description 3
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 claims description 2
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 claims description 2
- UMFJXASDGBJDEB-UHFFFAOYSA-N triethoxy(prop-2-enyl)silane Chemical compound CCO[Si](CC=C)(OCC)OCC UMFJXASDGBJDEB-UHFFFAOYSA-N 0.000 claims description 2
- 239000005050 vinyl trichlorosilane Substances 0.000 claims description 2
- 150000001734 carboxylic acid salts Chemical class 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 238000001125 extrusion Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 235000021317 phosphate Nutrition 0.000 description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 239000002216 antistatic agent Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 15
- 239000002253 acid Substances 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 10
- 239000013078 crystal Substances 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 239000006096 absorbing agent Substances 0.000 description 7
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 6
- CEHZDADCZCTDKP-UHFFFAOYSA-N 5,7,15,17-tetratert-butyl-11-hydroxy-9,10,12,13-tetraoxa-11lambda5-phosphatricyclo[12.4.0.03,8]octadeca-1(14),3(8),4,6,15,17-hexaene 11-oxide Chemical compound CC(C)(C)C(C=C1C(C)(C)C)=CC(CC(C=C(C(C)(C)C)C=C2C(C)(C)C)=C2OO2)=C1OOP2(O)=O CEHZDADCZCTDKP-UHFFFAOYSA-N 0.000 description 6
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 6
- 239000008116 calcium stearate Substances 0.000 description 6
- 235000013539 calcium stearate Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 230000006911 nucleation Effects 0.000 description 4
- 239000001488 sodium phosphate Substances 0.000 description 4
- 229910000162 sodium phosphate Inorganic materials 0.000 description 4
- ZHROMWXOTYBIMF-UHFFFAOYSA-M sodium;1,3,7,9-tetratert-butyl-11-oxido-5h-benzo[d][1,3,2]benzodioxaphosphocine 11-oxide Chemical compound [Na+].C1C2=CC(C(C)(C)C)=CC(C(C)(C)C)=C2OP([O-])(=O)OC2=C1C=C(C(C)(C)C)C=C2C(C)(C)C ZHROMWXOTYBIMF-UHFFFAOYSA-M 0.000 description 4
- 241000519995 Stachys sylvatica Species 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- QHZLMUACJMDIAE-UHFFFAOYSA-N 1-monopalmitoylglycerol Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(O)CO QHZLMUACJMDIAE-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- IGXGRBJFJDJMKE-UHFFFAOYSA-N (2,4-ditert-butylphenoxy) dihydrogen phosphate Chemical compound CC(C)(C)C1=CC=C(OOP(O)(O)=O)C(C(C)(C)C)=C1 IGXGRBJFJDJMKE-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- FQUNFJULCYSSOP-UHFFFAOYSA-N bisoctrizole Chemical compound N1=C2C=CC=CC2=NN1C1=CC(C(C)(C)CC(C)(C)C)=CC(CC=2C(=C(C=C(C=2)C(C)(C)CC(C)(C)C)N2N=C3C=CC=CC3=N2)O)=C1O FQUNFJULCYSSOP-UHFFFAOYSA-N 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- LQFNMFDUAPEJRY-UHFFFAOYSA-K lanthanum(3+);phosphate Chemical compound [La+3].[O-]P([O-])([O-])=O LQFNMFDUAPEJRY-UHFFFAOYSA-K 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/527—Cyclic esters
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of polypropylene, in particular to IPC C08L23, and more particularly relates to high-crystallization heat-resistant polypropylene and a preparation method thereof. The invention provides high-crystallization heat-resistant polypropylene, which is prepared from the following raw materials of 90-110 parts of polypropylene resin, 1-3 parts of high-crystallization heat-resistant nucleating agent and 0.1-1 part of antioxidant B. The high-crystallization heat-resistant nucleating agent comprises, by mass, 15-25% of a compound nucleating agent, 15-25% of an antioxidant A, 30-50% of an antioxidant B and 10-30% of an auxiliary agent. The high-crystallization heat-resistant polypropylene prepared by the method has high flexural modulus and high heat distortion temperature, and also has excellent impact resistance, is suitable for the shell of a heating electric appliance, and improves the use safety performance of the shell of the existing household appliance.
Description
Technical Field
The invention relates to the technical field of polypropylene, in particular to IPC C08L23, and more particularly relates to high-crystallization heat-resistant polypropylene and a preparation method thereof.
Background
Polypropylene resin is widely used in the industries of automobiles, daily necessities, medical appliances, electric appliances and the like due to the characteristics of small density, light volume, easy processing and the like. The existing polypropylene resin has low load deformation temperature, basically between 75 and 115 ℃, is easy to deform if the temperature is too high, and has performance which cannot meet the requirements of the shells for some heating appliances, thereby affecting the safety of the appliances.
The prior patent 201110098398.3 discloses a polypropylene stiffening and toughening nucleating agent composition, which comprises a carboxylate nucleating agent and a phosphate nucleating agent, wherein the carboxylate nucleating agent is selected from one or two of sodium benzoate and aluminum hydroxy p-tert-butylbenzoate, and the phosphate nucleating agent is selected from any one of sodium 2,2 '-methylene-bis (4, 6-di-tert-butylphenyl) phosphate and bis [2,2' -methylene-bis (4, 6-di-tert-butylphenyl) ] aluminum phosphate. The nucleating agent composition in this patent is mainly intended to improve the impact strength of polypropylene, and its heat distortion temperature is still to be raised.
The prior patent CN200610118582.9 is a method for manufacturing heat-resistant modified polypropylene resin with high glossiness, and the additive comprises nucleating agent sodium 2, 2-methylene-bis (4, 6-di-tert-butylphenoxy) phosphate and 3MgO 2·4SiO2·H2 O; lubricant monopalmitin; the flexural modulus is generally, though it has a better heat distortion temperature.
Disclosure of Invention
In order to solve the problems in the prior art, the first aspect of the invention provides high-crystallization heat-resistant polypropylene, which is prepared from 90-110 parts of polypropylene resin, 1-3 parts of high-crystallization heat-resistant nucleating agent and 0.1-1 part of antioxidant B.
Further preferred are 100 parts of polypropylene resin, 2 parts of high crystalline heat resistant nucleating agent, 0.5 part of antioxidant B.
The high-crystallization heat-resistant nucleating agent comprises, by mass, 15-25% of a compound nucleating agent, 15-25% of an antioxidant A, 30-50% of an antioxidant B and 10-30% of an auxiliary agent.
Further preferably, the high-crystallization heat-resistant nucleating agent comprises, by mass, 20-25% of a compound nucleating agent, 20-25% of an antioxidant A, 35-40% of an antioxidant B and 15-20% of an auxiliary agent.
Preferably, the compound nucleating agent comprises a phosphate nucleating agent, an organic carboxylate and a silane coupling agent.
Preferably, the phosphate nucleating agent comprises at least two of sodium 2,2 '-methylenebis (2, 4-di-tert-butylphenoxy) phosphate, aluminum basic salt of 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) phosphate, lanthanum bis (2, 4-dimethylphenoxy) phosphate.
Preferably, the phosphate nucleating agent is a mixture of sodium 2,2 '-methylenebis (2, 4-di-tert-butylphenoxy) phosphate, aluminum basic salt of 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) phosphate and lanthanum bis (2, 4-dimethylphenoxy) phosphate, and the mass ratio of the phosphate nucleating agent to the lanthanum bis (2, 4-dimethylphenoxy) phosphate is (1-3): (3-5): (3-5); further preferably, it is 2:4: 4. 3:5:3 or 1:5:5.
Preferably, the preparation method of the bis (2, 4-dimethylphenoxy) lanthanum phosphate comprises the following steps:
Preferably, adding ethanol solution containing bis (2, 4-dimethylphenoxy) phosphoric acid into a reactor, adding NaOH aqueous solution with the mass fraction of 20-30% under the condition of stirring, and reacting for 2-3 h at 70-90 ℃; then adding 20-30% of lanthanum chloride aqueous solution by mass fraction, stirring at normal temperature for reacting for 2-3 h, filtering, drying and crushing after the reaction is finished, thus obtaining the bis (2, 4-dimethylphenoxy) lanthanum phosphate.
In the invention, the mass ratio of the components is (1-3): (3-5): the phosphate nucleating agent of (3-5) not only improves the dispersion performance of the compound nucleating agent, but also improves the thermal deformation temperature (125 ℃) and the flexural modulus (2320 MPa) of polypropylene, and simultaneously improves the impact strength (2.01 KJ/m 2) of a simply supported beam. The inventor discovers that when the compound nucleating agent is 2,2 '-methylene bis (2, 4-di-tert-butylphenoxy) sodium phosphate, agglomeration easily occurs in polypropylene, and after 2,2' -methylene bis (4, 6-di-tert-butylphenoxy) aluminum phosphate basic salt and bis (2, 4-dimethylphenoxy) lanthanum phosphate are added, and the compound nucleating agent is compounded according to a certain proportion, the prepared polypropylene does not have white spots, and the polypropylene has excellent heat distortion temperature, bending modulus and simply supported beam impact strength. On one hand, aluminum phosphate and lanthanum phosphate can improve the dispersion effect of various components, and the prepared polypropylene can not generate white spots, so that the performance of the polypropylene is affected. On the other hand, the crystal nucleus of the polypropylene is provided with a great amount of monoclinic system of alpha crystal form, the organic phosphate and the polypropylene are well lattice matched, the nucleation density of the polypropylene can be greatly improved by the compatibility of the organic phosphate and the polypropylene, so that the spherulitic size is greatly reduced, a V-shaped structure is formed between two benzene rings of the three phosphates, the spiral structure of the polypropylene can be stabilized to a certain extent, thus the crystal nucleus has a good nucleation effect, and finally the crystal nucleus can have excellent flexural modulus and simple beam impact strength under the condition of high heat distortion temperature, which is the mechanical property which cannot be achieved by the nucleating agent on the market at present.
Preferably, the organic carboxylate comprises one or more of sodium benzoate, aluminum p-tert-butylbenzoate, bicyclo [2.2.1] heptane dicarboxylate.
Preferably, the mass ratio of the aluminum benzoate to the aluminum p-tert-butylbenzoate is (1-3): (1-3); further preferably, it is 2: 3. 1:1.
Preferably, the mass ratio of the aluminum benzoate to the aluminum p-tert-butylbenzoate to the bicyclo [2.2.1] heptane dicarboxylate is 1: (1-3): (1-3); further preferred is 1:2:2.
Preferably, the silane coupling agent comprises one or more of vinyltrimethoxysilane, vinyltriethoxysilane, allyltriethoxysilane, vinyltrichlorosilane, vinyltris (beta-methoxyethoxy) silane.
Preferably, the mass ratio of the phosphate nucleating agent, the organic carboxylate and the silane coupling agent is (4-6): (2-4): 2; further preferably, it is 5:3: 2. 4:3:2 or 4:4:2.
Preferably, the compound nucleating agent is a high-crystallization heat-resistant nucleating agent RY-2007 which is independently developed by Shanghai Ji Run new materials limited company.
In the invention, the mass ratio of the additive is (4-6): (2-4): 2, the phosphate nucleating agent, the organic carboxylate and the silane coupling agent, which not only improve the flexural modulus and the impact strength of the simply supported beams, but also obviously improve the heat distortion temperature. The inventor discovers that the addition of the general nucleating agent is beneficial to improving the crystallinity of the polypropylene, and often plays a role of enhancing, so that the rigidity of the polypropylene is increased, the tensile strength and the bending strength are increased, the modulus is increased, but the impact resistance is reduced to some extent, and often the obtained polypropylene product cannot reach high bending strength and high impact strength. The compound nucleating agent is high in flexural modulus, high in impact strength and high in heat distortion temperature, and probably due to the addition of the silane coupling agent in a specific proportion, on one hand, the silane coupling agent and the polypropylene form an interpenetrating network structure, the phosphate nucleating agent and the organic carboxylate are dispersed in a system, at the moment, the crystal lattice of the phosphate nucleating agent is well matched with the polypropylene, the benzene ring crystal lattice of the organic carboxylate is matched with the side methyl of a polypropylene molecular chain, so that crystals are attached, the crystallinity of the polypropylene is improved, and the flexural modulus is increased; on the other hand, after the silane coupling agent, the phosphate nucleating agent and the silane coupling agent are compounded, a large amount of heterogeneous crystal nuclei exist in the system, the original homogeneous crystal nucleation is changed into heterogeneous crystal nucleation, and the spherulites in the polypropylene are easy to collide with other spherulites in the system, so that the number of spherulites in the polypropylene is increased, the spherulites size is reduced, excellent impact resistance is shown, and meanwhile, the heat distortion temperature is also improved. In addition, the silane coupling agent also has a certain dispersing effect, so that the dispersing effect of the compound nucleating agent is better, and the probability of white spots on polypropylene products is reduced.
Preferably, the antioxidant A comprises one or more of an antioxidant 1010, an antioxidant 1076, an antioxidant 1098, an antioxidant 168 and a compound antioxidant B215.
Preferably, the antioxidant B comprises one or more of an antioxidant 1010, an antioxidant 1076, an antioxidant 1098 and an antioxidant 168.
Preferably, the auxiliary agent comprises an acid absorber and an antistatic agent, and the mass ratio of the acid absorber to the antistatic agent is (2-4): 1, a step of; further preferably, it is 3:1.
Preferably, the acid absorber comprises any one of calcium stearate and zinc stearate.
Preferably, the antistatic agent comprises monoglyceride.
According to the invention, by adding calcium stearate and monoglyceride, acidic substances in the polypropylene preparation process are reduced, and meanwhile, the adhesion and antistatic effects are achieved, so that the mechanical properties of polypropylene are improved, and the processing production efficiency of downstream products is improved.
Preferably, the polypropylene resin is named as Zhongkejia PPH-MH20.
The second aspect of the present invention provides a method for preparing high-crystalline heat-resistant polypropylene, comprising the steps of: and (3) weighing according to the mass parts, mixing the polypropylene resin, the high-crystallization heat-resistant nucleating agent and the antioxidant B by a high-speed mixer, setting the rotation speed of the mixer, granulating by a double-screw extruder, setting the temperature of the extruder, and performing injection molding to prepare a sample to obtain the polypropylene.
Preferably, the high-crystallization heat-resistant nucleating agent is subjected to grinding and crushing treatment before being added.
Preferably, the rotating speed of the mixer is 300-500 r/min; further preferably, the ratio is 400r/min.
Preferably, the temperature of the extruder is 200-250 ℃; further preferably, it is 220 ℃.
Advantageous effects
1. In the invention, the mass ratio of the components is (1-3): (3-5): the phosphate nucleating agent of (3-5) not only improves the dispersion performance of the compound nucleating agent, but also improves the heat distortion temperature and the flexural modulus of polypropylene.
2. In the invention, the mass ratio of the additive is (4-6): (2-4): 2, the phosphate nucleating agent, the organic carboxylate and the silane coupling agent, which not only improve the flexural modulus and the impact strength of the simply supported beams, but also obviously improve the heat distortion temperature.
3. The polypropylene of the invention has outstanding heat resistance, and is characterized by higher crystallization temperature and heat deformation temperature, shorter semi-crystallization time, etc.
4. The high-crystallization heat-resistant nucleating agent has stable chemical properties, can be regulated and changed according to proportion, has good dispersibility in polypropylene, is not easy to agglomerate, and obviously improves the heat resistance of the polypropylene.
5. The bending modulus of the high-crystallization heat-resistant polypropylene is up to 2320MPa, and the load deformation temperature is 125 ℃; the simple beam has the impact strength of 2.01KJ/m 2 and the haze of 36.3, is suitable for the field of heating household appliances, prolongs the service life of the household appliance shell and improves the quality of the household appliance.
Detailed Description
Example 1
The first aspect of the embodiment provides high-crystallization heat-resistant polypropylene, which is prepared from 100 parts of polypropylene resin, 2 parts of high-crystallization heat-resistant nucleating agent and 0.5 part of antioxidant B.
The high-crystallization heat-resistant nucleating agent comprises, by mass, 20% of a compound nucleating agent, 20% of an antioxidant A, 40% of an antioxidant B and 20% of an auxiliary agent.
The compound nucleating agent is phosphate nucleating agent, organic carboxylate and silane coupling agent.
The phosphate nucleating agent is a mixture of sodium 2,2 '-methylenebis (2, 4-di-tert-butylphenoxy) phosphate, aluminum basic salt of 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) phosphate and lanthanum bis (2, 4-dimethylphenoxy) phosphate, and the mass ratio is 2:4:4.
The CAS number of the 2,2' -methylenebis (2, 4-di-tert-butylphenoxy) sodium phosphate is 85209-91-2; the CAS number of the 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) aluminum phosphate basic salt is 151841-65-5.
The preparation method of the bis (2, 4-dimethylphenoxy) lanthanum phosphate comprises the following steps:
Adding ethanol solution containing bis (2, 4-dimethylphenoxy) phosphoric acid into a reactor, adding NaOH aqueous solution with the mass fraction of 20% under the condition of stirring, and reacting for 2 hours at 80 ℃; then adding 20% lanthanum chloride aqueous solution by mass fraction, stirring at normal temperature for reaction for 2 hours, filtering, drying and crushing after the reaction is finished, and obtaining the bis (2, 4-dimethylphenoxy) lanthanum phosphate.
The organic carboxylate is aluminum benzoate, aluminum p-tert-butylbenzoate and bicyclo [2.2.1] heptane dicarboxylate.
The mass ratio of the aluminum benzoate to the aluminum p-tert-butylbenzoate to the bicyclo [2.2.1] heptane dicarboxylate is 1:2:2.
The CAS number of the aluminum benzoate is 555-32-8; the CAS number of the aluminum p-tert-butylbenzoate is 98-73-7; the CAS number of the bicyclo [2.2.1] heptane dicarboxylate is 824-62-4.
The silane coupling agent is vinyl trimethoxy silane.
The mass ratio of the phosphate nucleating agent to the organic carboxylate to the silane coupling agent is 5:3:2.
The compound nucleating agent is a high-crystallization heat-resistant nucleating agent RY-2007 which is independently developed by Shanghai Ji Run new material limited company.
The antioxidant A is antioxidant 1010.
The antioxidant B is an antioxidant 168.
The auxiliary agent is an acid absorbent and an antistatic agent, and the mass ratio of the auxiliary agent to the antistatic agent is 3:1.
The acid absorbing agent is calcium stearate.
The antistatic agent is monoglyceride.
The raw materials are all commercially available.
The brand of the polypropylene resin is Zhongke refined PPH-MH20.
In a second aspect, the present embodiment provides a method for preparing high-crystalline heat-resistant polypropylene, including the steps of: and (3) weighing according to the mass parts, mixing the polypropylene resin, the high-crystallization heat-resistant nucleating agent and the antioxidant B by a high-speed mixer, setting the rotation speed of the mixer, granulating by a double-screw extruder, setting the temperature of the extruder, and performing injection molding to prepare a sample for standby testing.
The high-crystallization heat-resistant nucleating agent is firstly subjected to grinding and crushing treatment before being added.
The rotating speed of the mixer is 400r/min.
The extruder temperature was 220 ℃.
Example 2
The first aspect of the embodiment provides a preparation raw material of high-crystallization heat-resistant polypropylene, which comprises 100 parts of polypropylene resin, 2 parts of high-crystallization heat-resistant nucleating agent and 0.5 part of antioxidant B.
The high-crystallization heat-resistant nucleating agent comprises, by mass, 25% of a compound nucleating agent, 25% of an antioxidant A, 35% of an antioxidant B and 15% of an auxiliary agent.
The compound nucleating agent is phosphate nucleating agent, organic carboxylate and silane coupling agent.
The phosphate nucleating agent is a mixture of sodium 2,2 '-methylenebis (2, 4-di-tert-butylphenoxy) phosphate, aluminum basic salt of 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) phosphate and lanthanum bis (2, 4-dimethylphenoxy) phosphate, and the mass ratio is 3:5:3.
The CAS number of the 2,2' -methylenebis (2, 4-di-tert-butylphenoxy) sodium phosphate is 85209-91-2; the CAS number of the 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) aluminum phosphate basic salt is 151841-65-5;
The preparation method of the bis (2, 4-dimethylphenoxy) lanthanum phosphate comprises the following steps:
Adding ethanol solution containing bis (2, 4-dimethylphenoxy) phosphoric acid into a reactor, adding NaOH aqueous solution with the mass fraction of 20% under the condition of stirring, and reacting for 2 hours at 80 ℃; then adding 20% lanthanum chloride aqueous solution by mass fraction, stirring at normal temperature for reaction for 2 hours, filtering, drying and crushing after the reaction is finished, and obtaining the bis (2, 4-dimethylphenoxy) lanthanum phosphate.
The organic carboxylate is aluminum benzoate and aluminum p-tert-butyl benzoate.
The mass ratio of the aluminum benzoate to the aluminum p-tert-butylbenzoate is 2:3.
The CAS number of the aluminum benzoate is 555-32-8; the CAS number of the aluminum p-tert-butylbenzoate is 98-73-7.
The silane coupling agent is vinyl triethoxysilane.
The mass ratio of the phosphate nucleating agent to the organic carboxylate to the silane coupling agent is 4:3:2.
The compound nucleating agent is a high-crystallization heat-resistant nucleating agent which is independently researched and developed by Shanghai Ji Run new material limited company.
The antioxidant A is antioxidant 1010.
The antioxidant B is an antioxidant 168.
The auxiliary agent is an acid absorbent and an antistatic agent, and the mass ratio of the auxiliary agent to the antistatic agent is 3:1.
The acid absorbing agent is calcium stearate.
The antistatic agent is monoglyceride.
The raw materials are all commercially available.
The brand of the polypropylene resin is Zhongke refined PPH-MH20.
In a second aspect, the present embodiment provides a method for preparing high-crystalline heat-resistant polypropylene, including the steps of: and (3) weighing according to the mass parts, mixing the polypropylene resin, the high-crystallization heat-resistant nucleating agent and the antioxidant B by a high-speed mixer, setting the rotation speed of the mixer, granulating by a double-screw extruder, setting the temperature of the extruder, and performing injection molding to prepare a sample for standby testing.
The high-crystallization heat-resistant nucleating agent is firstly subjected to grinding and crushing treatment before being added.
The rotating speed of the mixer is 300r/min.
The extruder temperature was 250 ℃.
The brand of the polypropylene resin is Zhongke refined PPH-MH20.
Example 3
The first aspect of the embodiment provides high-crystallization heat-resistant polypropylene, which is prepared from 100 parts of polypropylene resin, 2 parts of high-crystallization heat-resistant nucleating agent and 0.5 part of antioxidant B.
The high-crystallization heat-resistant nucleating agent comprises, by mass, 23% of a compound nucleating agent, 20% of an antioxidant A, 40% of an antioxidant B and 17% of an auxiliary agent.
The compound nucleating agent is phosphate nucleating agent, organic carboxylate and silane coupling agent.
The phosphate nucleating agent is a mixture of sodium 2,2 '-methylenebis (2, 4-di-tert-butylphenoxy) phosphate, aluminum basic salt of 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) phosphate and lanthanum bis (2, 4-dimethylphenoxy) phosphate, and the mass ratio is 1:5:5.
The CAS number of the 2,2' -methylenebis (2, 4-di-tert-butylphenoxy) sodium phosphate is 85209-91-2; the CAS number of the 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) aluminum phosphate basic salt is 151841-65-5.
The preparation method of the bis (2, 4-dimethylphenoxy) lanthanum phosphate comprises the following steps:
Adding ethanol solution containing bis (2, 4-dimethylphenoxy) phosphoric acid into a reactor, adding NaOH aqueous solution with the mass fraction of 20% under the condition of stirring, and reacting for 2 hours at 80 ℃; then adding 20% lanthanum chloride aqueous solution by mass fraction, stirring at normal temperature for reaction for 2 hours, filtering, drying and crushing after the reaction is finished, and obtaining the bis (2, 4-dimethylphenoxy) lanthanum phosphate.
The organic carboxylate is aluminum benzoate and aluminum p-tert-butyl benzoate.
The mass ratio of the aluminum benzoate to the aluminum p-tert-butylbenzoate is 1:1.
The CAS number of the aluminum benzoate is 555-32-8; the CAS number of the aluminum p-tert-butylbenzoate is 98-73-7.
The silane coupling agent is vinyl trimethoxy silane.
The mass ratio of the phosphate nucleating agent to the organic carboxylate to the silane coupling agent is 4:4:2.
The compound nucleating agent is a high-crystallization heat-resistant nucleating agent which is independently researched and developed by Shanghai Ji Run new material limited company.
The antioxidant A is antioxidant 1076.
The antioxidant B is an antioxidant 168.
The auxiliary agent is an acid absorbent and an antistatic agent, and the mass ratio of the auxiliary agent to the antistatic agent is 4:1.
The acid absorbing agent is calcium stearate.
The antistatic agent is monoglyceride.
The raw materials are all commercially available.
The brand of the polypropylene resin is Zhongke refined PPH-MH20.
In a second aspect, the present embodiment provides a method for preparing high-crystalline heat-resistant polypropylene, including the steps of: and (3) weighing according to the mass parts, mixing the polypropylene resin, the high-crystallization heat-resistant nucleating agent and the antioxidant B by a high-speed mixer, setting the rotation speed of the mixer, granulating by a double-screw extruder, setting the temperature of the extruder, and performing injection molding to prepare a sample for standby testing.
The high-crystallization heat-resistant nucleating agent is firstly subjected to grinding and crushing treatment before being added.
The rotating speed of the mixer is 500r/min.
The extruder temperature was 200 ℃.
Example 4
The first aspect of the embodiment provides high-crystallization heat-resistant polypropylene, which is prepared from 100 parts of polypropylene resin, 2 parts of high-crystallization heat-resistant nucleating agent and 0.5 part of antioxidant B.
The high-crystallization heat-resistant nucleating agent comprises, by mass, 20% of a compound nucleating agent, 20% of an antioxidant A, 40% of an antioxidant B and 20% of an auxiliary agent.
The compound nucleating agent is phosphate nucleating agent, organic carboxylate and silane coupling agent.
The phosphate nucleating agent is a mixture of 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) aluminum phosphate basic salt and bis (2, 4-dimethylphenoxy) lanthanum phosphate, and the mass ratio of the phosphate nucleating agent to the bis (2, 4-dimethylphenoxy) lanthanum phosphate is 1:1.
The CAS number of the 2,2' -methylenebis (4, 6-di-tert-butylphenoxy) aluminum phosphate basic salt is 151841-65-5;
The preparation method of the bis (2, 4-dimethylphenoxy) lanthanum phosphate comprises the following steps:
Adding ethanol solution containing bis (2, 4-dimethylphenoxy) phosphoric acid into a reactor, adding NaOH aqueous solution with the mass fraction of 20% under the condition of stirring, and reacting for 2 hours at 80 ℃; then adding 20% lanthanum chloride aqueous solution by mass fraction, stirring at normal temperature for reaction for 2 hours, filtering, drying and crushing after the reaction is finished, and obtaining the bis (2, 4-dimethylphenoxy) lanthanum phosphate.
The organic carboxylate is aluminum benzoate, aluminum p-tert-butylbenzoate and bicyclo [2.2.1] heptane dicarboxylate.
The mass ratio of the aluminum benzoate to the aluminum p-tert-butylbenzoate to the bicyclo [2.2.1] heptane dicarboxylate is 1:2:2.
The CAS number of the aluminum benzoate is 555-32-8; the CAS number of the aluminum p-tert-butylbenzoate is 98-73-7; the CAS number of the bicyclo [2.2.1] heptane dicarboxylate is 824-62-4.
The silane coupling agent is vinyl trimethoxy silane.
The mass ratio of the phosphate nucleating agent to the organic carboxylate to the silane coupling agent is 4:4:2.
The compound nucleating agent is a high-crystallization heat-resistant nucleating agent which is independently researched and developed by Shanghai Ji Run new material limited company.
The antioxidant A is antioxidant 1010.
The antioxidant B is an antioxidant 168.
The auxiliary agent is an acid absorbent and an antistatic agent, and the mass ratio of the auxiliary agent to the antistatic agent is 3:1.
The acid absorbing agent is calcium stearate.
The antistatic agent is monoglyceride.
The raw materials are all commercially available.
The high-crystallization heat-resistant nucleating agent is firstly subjected to grinding and crushing treatment before being added.
In a second aspect, the present embodiment provides a method for preparing high-crystalline heat-resistant polypropylene, including the steps of: and (3) weighing according to the mass parts, mixing the polypropylene resin, the high-crystallization heat-resistant nucleating agent and the antioxidant B by a high-speed mixer, setting the rotation speed of the mixer, granulating by a double-screw extruder, setting the temperature of the extruder, and performing injection molding to prepare a sample for standby testing.
The rotating speed of the mixer is 400r/min.
The extruder temperature was 220 ℃.
The brand of the polypropylene resin is Zhongke refined PPH-MH20.
Comparative example 1
The specific embodiment of comparative example 1 is the same as example 1, except that the phosphate nucleating agent is sodium 2,2 '-methylenebis (2, 4-di-t-butylphenoxy) phosphate, aluminum 2,2' -methylenebis (4, 6-di-t-butylphenoxy) phosphate basic salt, the mass ratio of which is 2:4.
Comparative example 2
The specific embodiment of comparative example 2 is the same as example 1, except that the phosphate nucleating agent is a mixture of sodium 2,2 '-methylenebis (2, 4-di-t-butylphenoxy) phosphate, basic aluminum 2,2' -methylenebis (4, 6-di-t-butylphenoxy) phosphate, lanthanum bis (2, 4-dimethylphenoxy) phosphate, and the mass ratio thereof is 1:1:10.
Comparative example 3
The embodiment of comparative example 3 is the same as in example 1, except that the organic carboxylate is aluminum benzoate.
Comparative example 4
The specific embodiment of comparative example 4 is the same as example 1, except that the compound nucleating agent is a phosphate nucleating agent, an organic carboxylate and a silane coupling agent; the mass ratio of the phosphate nucleating agent to the organic carboxylate to the silane coupling agent is 1:5:1, a step of; the mass percentage and the types of the compound nucleating agent are the same as those of the embodiment 1, and other raw materials are unchanged.
Comparative example 5
The embodiment of comparative example 5 is the same as in example 1 except that the phosphate nucleating agent is an aluminum basic salt of 2,2' -methylenebis (4, 6-di-t-butylphenoxy) phosphate.
Comparative example 6
The embodiment of comparative example 6 is the same as example 1 except that no compounded nucleating agent is added.
Comparative example 7
The specific embodiment of comparative example 7 is the same as example 1, except that the compound nucleating agent is a phosphate nucleating agent and an organic carboxylate, and the mass ratio of the compound nucleating agent to the organic carboxylate is 5:3, no silane coupling agent is added.
Performance testing
1. The optical (haze) and mechanical (flexural modulus, notched impact strength of a simply supported beam, load deformation temperature) performance results of the polypropylene prepared in examples 1 to 4 and comparative examples 1 to 5 were measured;
The test was carried out under the conditions of (23.+ -. 2) DEG C and (50.+ -. 5) percent Relative Humidity (RH) according to GB 2918-1998 (Standard environment for Plastic sample State adjustment and test), and the sample State adjustment time was 48 hours or longer. Physical property tests are respectively carried out according to national standards: the impact strength of the simply supported beam is implemented in standard GB/T18743.1-2022, the flexural modulus is implemented in standard GB/T9341-2008, the thermal deformation temperature is implemented in standard GB/T1634-2019, and the haze is implemented in standard GB/T2410-2008. The results are shown in Table 1.
TABLE 1
Claims (10)
1. The high-crystallization heat-resistant polypropylene is characterized by comprising 90-110 parts of polypropylene resin, 1-3 parts of high-crystallization heat-resistant nucleating agent and 0.1-1 part of antioxidant B;
The high-crystallization heat-resistant nucleating agent comprises, by mass, 15-25% of a compound nucleating agent, 15-25% of an antioxidant A, 30-50% of an antioxidant B and 10-30% of an auxiliary agent.
2. The high crystalline, heat resistant polypropylene according to claim 1, wherein the compounded nucleating agent comprises a phosphate nucleating agent, an organic carboxylate salt and a silane coupling agent.
3. The high crystalline, heat resistant polypropylene according to claim 2, wherein the phosphate nucleating agent comprises at least two of sodium 2,2 '-methylenebis (2, 4-di-t-butylphenoxy) phosphate, basic aluminum 2,2' -methylenebis (4, 6-di-t-butylphenoxy) phosphate, lanthanum bis (2, 4-dimethylphenoxy) phosphate.
4. The high crystalline heat resistant polypropylene according to claim 3, wherein the phosphate nucleating agent is a mixture of sodium 2,2 '-methylenebis (2, 4-di-t-butylphenoxy) phosphate, basic aluminum 2,2' -methylenebis (4, 6-di-t-butylphenoxy) phosphate, lanthanum bis (2, 4-dimethylphenoxy) phosphate, in a mass ratio of (1-3): (3-5): (3-5).
5. The high crystalline, heat resistant polypropylene according to claim 2, wherein the organic carboxylic acid salt comprises one or more of sodium benzoate, aluminum p-tert-butylbenzoate, bicyclo [2.2.1] heptane dicarboxylic acid salts.
6. The high crystalline heat resistant polypropylene according to claim 5, wherein the mass ratio of aluminum benzoate, aluminum p-tert-butylbenzoate, bicyclo [2.2.1] heptane dicarboxylate is 1: (1-3): (1-3).
7. The high crystalline, heat resistant polypropylene according to claim 2, wherein the silane coupling agent comprises one or more of vinyltrimethoxysilane, vinyltriethoxysilane, allyltriethoxysilane, vinyltrichlorosilane, vinyltris (β -methoxyethoxy) silane.
8. The high crystalline heat resistant polypropylene according to claim 2, wherein the mass ratio of phosphate nucleating agent, organic carboxylate and silane coupling agent is (4-6): (2-4): 2.
9. The high crystalline, heat resistant polypropylene according to any one of claims 1 to 8, wherein the antioxidant a comprises one or more of antioxidant 1010, antioxidant 1076, antioxidant 1098, antioxidant 168, and composite antioxidant B215.
10. A process for the preparation of a high crystalline heat resistant polypropylene according to any one of claims 1 to 9, comprising the steps of: and (3) weighing according to the mass parts, mixing the polypropylene resin, the high-crystallization heat-resistant nucleating agent and the antioxidant B by a high-speed mixer, setting the rotation speed of the mixer, granulating by a double-screw extruder, setting the temperature of an extrusion claim machine, and performing injection molding for sample preparation for standby testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410222456.6A CN118085452A (en) | 2024-02-28 | 2024-02-28 | High-crystallization heat-resistant polypropylene and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410222456.6A CN118085452A (en) | 2024-02-28 | 2024-02-28 | High-crystallization heat-resistant polypropylene and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118085452A true CN118085452A (en) | 2024-05-28 |
Family
ID=91141744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410222456.6A Pending CN118085452A (en) | 2024-02-28 | 2024-02-28 | High-crystallization heat-resistant polypropylene and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118085452A (en) |
-
2024
- 2024-02-28 CN CN202410222456.6A patent/CN118085452A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI461472B (en) | Β-nucleating agent composite for polypropylene and the use of the same | |
| CN109438976B (en) | Copolymerized nylon product and preparation method thereof | |
| CN112940475B (en) | Flame-retardant composite material and preparation method thereof | |
| CN111171446B (en) | Composite high-oxygen-index flame-retardant polypropylene master batch and preparation method thereof | |
| CN110615915A (en) | Composite polypropylene nucleating agent and preparation method and application thereof | |
| CN102408626A (en) | Polypropylene anti-reflection nucleating agent and preparation method thereof | |
| CN108504068B (en) | High-fatigue-resistance flame-retardant PC/PBT alloy material and preparation method thereof | |
| CN101671460A (en) | High-flexibility high-strength polypropylene composition, preparation method and use thereof | |
| CN113527813A (en) | Preparation process of polypropylene modified plastic | |
| CN116656046B (en) | Flame-retardant anti-ultraviolet modified lignin hybrid MXene/polypropylene composite material and preparation method thereof | |
| CN118085452A (en) | High-crystallization heat-resistant polypropylene and preparation method thereof | |
| CN116515190B (en) | Ageing-resistant low-migration polyethylene pipe and preparation method thereof | |
| CN111004436B (en) | Toughened isotactic polypropylene composite material and preparation method thereof | |
| CN110452462A (en) | Reinforced flame-retardant polypropylene composite material and preparation method thereof | |
| CN101580613B (en) | Master batch used for preparing high heat-resisting polypropylene plastic as well as preparation method and application thereof | |
| CN107349918A (en) | A kind of preparation method of diatomite aids,filter | |
| CN114437518A (en) | Low-warpage glass fiber reinforced PBT composition and preparation method and application thereof | |
| CN116535743B (en) | Resin composite additive for high-rigidity and high-heat-resistance wiredrawing polypropylene and preparation method thereof | |
| CN113136093B (en) | Preparation method of reinforced polybutylene terephthalate material | |
| CN114672142B (en) | PBT composition, and preparation method and application thereof | |
| CN115286907B (en) | Degradable heat-resistant flame-retardant plastic master batch and preparation method thereof | |
| CN110615916A (en) | Composite polypropylene nucleating agent and preparation method and application thereof | |
| CN114560953A (en) | Cellulose hybrid flame retardant and preparation method thereof, and degradable flame-retardant PBAT-based composite material and preparation method thereof | |
| CN118546524A (en) | High-temperature-resistant low-precipitation halogen-free flame-retardant PPO/PA alloy material and preparation method thereof | |
| CN116285288A (en) | Special composite material for polycarbonate resistant to solvent corrosion and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |