CN114213702A - Polypropylene plate and preparation method thereof - Google Patents
Polypropylene plate and preparation method thereof Download PDFInfo
- Publication number
- CN114213702A CN114213702A CN202111392931.7A CN202111392931A CN114213702A CN 114213702 A CN114213702 A CN 114213702A CN 202111392931 A CN202111392931 A CN 202111392931A CN 114213702 A CN114213702 A CN 114213702A
- Authority
- CN
- China
- Prior art keywords
- foaming
- polypropylene
- polypropylene plate
- agent
- parts
- 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
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 75
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 72
- -1 Polypropylene Polymers 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000005187 foaming Methods 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 32
- 229920000103 Expandable microsphere Polymers 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000000178 monomer Substances 0.000 claims description 18
- 239000004088 foaming agent Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 9
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 claims description 9
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 9
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 9
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 9
- HNRMPXKDFBEGFZ-UHFFFAOYSA-N 2,2-dimethylbutane Chemical compound CCC(C)(C)C HNRMPXKDFBEGFZ-UHFFFAOYSA-N 0.000 claims description 6
- GXDHCNNESPLIKD-UHFFFAOYSA-N 2-methylhexane Natural products CCCCC(C)C GXDHCNNESPLIKD-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 claims description 6
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 claims description 6
- CRSOQBOWXPBRES-UHFFFAOYSA-N neopentane Chemical compound CC(C)(C)C CRSOQBOWXPBRES-UHFFFAOYSA-N 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 3
- 239000001273 butane Substances 0.000 claims description 3
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000001282 iso-butane Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 239000012462 polypropylene substrate Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000013585 weight reducing agent Substances 0.000 abstract description 2
- 101100058333 Arabidopsis thaliana BHLH35 gene Proteins 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 239000004604 Blowing Agent Substances 0.000 description 4
- 229910001124 EN series Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- ICGLPKIVTVWCFT-UHFFFAOYSA-N 4-methylbenzenesulfonohydrazide Chemical compound CC1=CC=C(S(=O)(=O)NN)C=C1 ICGLPKIVTVWCFT-UHFFFAOYSA-N 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- VJRITMATACIYAF-UHFFFAOYSA-N benzenesulfonohydrazide Chemical compound NNS(=O)(=O)C1=CC=CC=C1 VJRITMATACIYAF-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002666 chemical blowing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- FAMRKDQNMBBFBR-BQYQJAHWSA-N diethyl azodicarboxylate Substances CCOC(=O)\N=N\C(=O)OCC FAMRKDQNMBBFBR-BQYQJAHWSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- FAMRKDQNMBBFBR-UHFFFAOYSA-N ethyl n-ethoxycarbonyliminocarbamate Chemical compound CCOC(=O)N=NC(=O)OCC FAMRKDQNMBBFBR-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002832 nitroso derivatives Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
- C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/22—Expandable microspheres, e.g. Expancel®
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—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
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
-
- 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
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention provides a polypropylene plate and a preparation method thereof, belonging to the field of polymer foaming materials, and specifically comprising the steps of uniformly mixing 100 parts by weight of a polypropylene base material, 1-10 parts by weight of a foaming functional master batch and 1-6 parts by weight of a compatibilizer at normal temperature to obtain a material; conveying the materials to a screw extruder at the temperature of 200-240 ℃, extruding the materials in the screw extruder, and fixingMolding and cooling to obtain the polypropylene plate, wherein the compatibilizer is used for improving the compatibility of master batches and the polypropylene base material, the foaming master batches at least comprise a low-melting-point carrier, expandable microspheres and an auxiliary agent, the particle size distribution of the expandable microspheres is 10-50 mu m, the initial foaming temperature is 120-145 ℃, the foaming peak temperature is 190-200 ℃, and the true density is 1000-1300 kg/m3. Through the processing scheme, the prepared plate is uniform in foaming, good in weight reduction effect, excellent in mechanical property of products and small in molding shrinkage.
Description
Technical Field
The invention relates to the field of high polymer foaming materials, in particular to a polypropylene plate and a preparation method of the polypropylene plate.
Background
The polypropylene (PP) foaming material has good heat insulation, buffering property, floatability and high cost performance, so the PP foaming material has wide application fields. In the prior art, a chemical foaming agent is used for preparing foaming functional master batches, and then a polypropylene (PP) plate is prepared by the foaming functional master batches, but the chemical foaming agent has the problems of sudden property, large foam holes, stress concentration and the like; therefore, the prepared foaming functional master batch has poor compatibility and dispersibility with PP, and the prepared PP sheet has the problems of stress concentration and poor mechanical property.
Although the polypropylene can be modified in the prior art, the AC, the cross-linking agent and the like are required to be added in the process of preparing the functional master batch, the preparation process of the polypropylene foamed sheet is complex, and the AC and the cross-linking agent are not environment-friendly and difficult to recycle, so that the existing capacity cannot be met.
Disclosure of Invention
Therefore, in order to overcome the defects of the prior art, the invention provides the polypropylene plate which is uniform in foaming, good in weight reduction effect, excellent in product mechanical property and small in molding shrinkage rate, and the preparation method of the polypropylene plate.
In order to achieve the above object, the present invention provides a method for preparing a polypropylene sheet, comprising: uniformly mixing 100 parts by weight of polypropylene base material, 1-10 parts by weight of foaming functional master batch and 1-6 parts by weight of compatibilizer at normal temperature to obtain a material; conveying the material to a screw extruder at 200-240 ℃, extruding the material in the screw extruder, shaping and cooling to obtain a polypropylene plate, wherein the compatibilizer is used for improving the compatibility of master batches and a polypropylene base material, the foaming master batches at least comprise a low-melting-point carrier, expandable microspheres and an auxiliary agent, the particle size of the expandable microspheres is distributed in a range of 10-50 mu m, the initial foaming temperature is 120-145 ℃, the foaming peak temperature is 190-200 ℃, and the true density is 1000-1300kg/m3。
In one embodiment, the polypropylene substrate is at least one of pure PP, filling modified PP, and glass fiber modified PP.
In one embodiment, the low melting point carrier is at least one of ethylene vinyl acetate, polyethylene, and ethylene octene copolymer.
In one embodiment, the expandable microspheres are shells formed by polymers and internally contain volatile expanding agents serving as core agents, the shells are formed by polymerizing monomer mixtures of polymerizable monomers, and the polymerizable monomers are at least one of acrylonitrile, acrylate monomers, acrylamide monomers and acrylic monomers.
In one embodiment, the core agent is a low boiling point hydrocarbon having a boiling point not higher than that of the shell, and the core agent is at least one of n-pentane, isopentane, neopentane, butane, isobutane, hexane, isohexane, neohexane, heptane, isoheptane, octane, isooctane, and petroleum ether.
In one embodiment, the additive is at least one of a PE wax, an EBS wax, and a white oil.
In one embodiment, the foaming functional master batch consists of a low-melting-point carrier, expandable microspheres, a foaming agent and an auxiliary agent.
In one embodiment, the foaming agent is at least one of azodicarbonamide, phenylhydrazides and sodium citrate.
In one embodiment, the compatibilizer is at least one of EVA grafted maleic anhydride, polyethylene grafted glycidyl methacrylate, SBS grafted maleic anhydride, SBS grafted glycidyl methacrylate, POE grafted maleic anhydride, and POE grafted glycidyl methacrylate.
The application also provides a polypropylene plate prepared by the preparation method.
Compared with the prior art, the invention has the advantages that: the problem of poor compatibility of the master batch and PP is solved by adding the compatibilizer during processing, so that the dispersibility of the master batch in PP is improved; the product obtained by adopting the foaming master batch has high foaming rate and uniform foam pores, and makes up the burst property and uncontrollable property of the foaming of the chemical foaming agent; the complex step of blending a large amount of raw materials is avoided during processing, and the mechanical property reduction caused by a large amount of open pores due to uncontrollable foaming during compression molding is also avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a polypropylene sheet according to a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of a polypropylene plate in accordance with a first comparative example of the present invention.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number and aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The embodiment of the application provides a preparation method of a polypropylene plate, which comprises the following steps: uniformly mixing 100 parts by weight of polypropylene base material, 1-10 parts by weight of foaming functional master batch and 1-6 parts by weight of compatibilizer at normal temperature to obtain a material; conveying the material to a screw extruder at the temperature of 200-240 ℃, extruding the material in the screw extruder, shaping and cooling to obtain the polypropylene plate.
The foaming master batch has the functions of reducing weight and lightening weight. The foaming master batch at least comprises a low-melting-point carrier, expandable microspheres and an auxiliary agent, wherein the particle size distribution of the expandable microspheres is 10-50 mu m, the initial foaming temperature is 120-145 ℃, the foaming peak temperature is 190-200 ℃, and the true density is 1000-1300 kg/m3. The foaming functional master batch can be one of EV series and EN series master batches of Kuaisui (Shanghai) Co,the EV series include EV282, EV283 and EV286, and the EN series include EN4 and EN 41. The EV series master batch consists of a low-melting-point carrier, expandable microspheres and an auxiliary agent, and the EN series master batch consists of a low-melting-point carrier, expandable microspheres, a foaming agent and an auxiliary agent. The EV series master batch performance is EV 283. The EN series master batch performance is EN4 or EN 41.
The function of the compatibilizer is to increase the compatibility between the microsphere injection molding base materials PP. In one embodiment, the compatibilizer is at least one of EVA grafted maleic anhydride, polyethylene grafted glycidyl methacrylate, SBS grafted maleic anhydride, SBS grafted glycidyl methacrylate, POE grafted maleic anhydride, and POE grafted glycidyl methacrylate.
Polypropylene substrates are used to prepare shaped articles. In one embodiment, the polypropylene substrate is at least one of pure PP, filling modified PP, and glass fiber modified PP.
The low melting point carrier is selected based on the criteria of low melting point and high melt index. In one embodiment, the low melting point carrier is at least one of ethylene vinyl acetate, polyethylene, ethylene octene copolymer.
In one embodiment, the expandable microspheres are shells formed by polymers and internally contain volatile expanding agents serving as core agents, the shells are formed by polymerizing monomer mixtures of polymerizable monomers, and the polymerizable monomers are at least one of acrylonitrile, acrylate monomers, acrylamide monomers and acrylic monomers.
In one embodiment, the core agent is a low boiling point hydrocarbon having a boiling point not higher than that of the shell, and the core agent is at least one of n-pentane, isopentane, neopentane, butane, isobutane, hexane, isohexane, neohexane, heptane, isoheptane, octane, isooctane, and petroleum ether.
The function of the auxiliary agent is lubrication and the dispersing performance is improved. In one embodiment, the additive is at least one of a PE wax, an EBS wax, and a white oil.
In one embodiment, the foaming functional master batch consists of a low-melting-point carrier, expandable microspheres, a foaming agent and an auxiliary agent.
The foaming agent plays a role in lightening the cells. In one embodiment, the blowing agent may be a physical blowing agent or a chemical blowing agent. The physical blowing agent may be a conventional blowing agent. The chemical foaming agent can be selected from organic foaming agents which mainly comprise the following types:
1. an azo compound; such as azobisisobutyronitrile, diisopropyl azodicarboxylate, diethyl azodicarboxylate, azoaminobenzene, and the like.
2. Sulfonyl hydrazides; such as N, N-dimethyl-N, N-dinitrosoterephthalamide, and the like.
3. A nitroso compound; such as benzenesulfonyl hydrazide, p-toluenesulfonyl hydrazide, 4-oxybis-benzenesulfonyl hydrazide, etc.
The application also provides a polypropylene plate, and the polypropylene plate is prepared by adopting the preparation method of the polypropylene plate.
According to the polypropylene board and the preparation method of the polypropylene board, the compatibilizer is added during processing, so that the problem of poor compatibility of the master batch and PP is solved, and the dispersibility of the master batch in PP is improved; the product obtained by adopting the foaming master batch has high foaming rate and uniform foam pores, and makes up the burst property and uncontrollable property of the foaming of the chemical foaming agent; the complex step of blending a large amount of raw materials is avoided during processing, and the mechanical property reduction caused by a large amount of open pores due to uncontrollable foaming during compression molding is also avoided.
Example one
Uniformly mixing 100 parts of PP (polypropylene) base material, 1-10 parts of EN41 foaming functional master batch and 2 parts of compatibilizer at normal temperature to obtain a material, wherein the performance parameter of the EN41 foaming functional master batch is the foaming temperature of 220-;
conveying the materials to a die press in a screw extruder at 220 ℃ for hot pressing for 10 min; and then cooling, solidifying and molding the hot-pressed material, and demolding to obtain the polypropylene plate, wherein the cross-sectional view of the plate is shown in figure 1.
Comparison example 1
Uniformly mixing 100 parts of PP (polypropylene) base material and 1-10 parts of EN41 foaming functional master batch at normal temperature to obtain a material, wherein the performance parameter of the EN41 foaming functional master batch is foaming temperature of 220-;
conveying the materials to a die press in a screw extruder at 220 ℃ for hot pressing for 10 min; and then cooling, solidifying and molding the hot-pressed material, and demolding to obtain the polypropylene plate, wherein the cross-sectional view of the plate is shown in figure 2.
Example two
Uniformly mixing 100 parts of PP (polypropylene) base material, 1-10 parts of EN41 foaming functional master batch and 4 parts of compatibilizer at normal temperature to obtain a material, wherein the performance parameter of the EN41 foaming functional master batch is the foaming temperature of 220-;
conveying the materials to a die press in a screw extruder at 220 ℃ for hot pressing for 10 min; and then cooling, solidifying and molding the hot-pressed material, and demolding to obtain the polypropylene plate, wherein the cross-sectional view of the plate is shown in figure 2.
EXAMPLE III
Uniformly mixing 100 parts of PP (polypropylene) base material, 1-10 parts of EN41 foaming functional master batch and 6 parts of compatibilizer at normal temperature to obtain a material, wherein the performance parameter of the EN41 foaming functional master batch is the foaming temperature of 220-;
conveying the materials to a die press in a screw extruder at 220 ℃ for hot pressing for 10 min; and then cooling, solidifying and molding the hot-pressed material, and demolding to obtain the polypropylene plate.
As shown in fig. 1 and fig. 2, the cells of the sheet prepared without adding the compatibilizer are not uniform and are all open, while the cells of the sheet added with the compatibilizer in the embodiment of the present application are uniformly distributed and are all closed. The sheets of examples 1 to 3 and comparative example 1 were subjected to a performance test to obtain the following parameters:
the density of the plate obtained in the example 1 is obviously lower than that of the plate obtained in the comparative example 1, the mechanical strength is higher than that of the plate obtained in the comparative example 1, and the dimensional stability is also better than that of the plate obtained in the comparative example 1. The foaming material obtained by extrusion foaming molding has the advantages that the dispersion of the master batch in PP is enhanced by the compatibilizer, the dispersibility of the master batch is further enhanced by the screw, the temperature control is accurate, and the foam holes are uniformly dispersed and are closed, so that the excellent mechanical strength and the excellent size stability are presented. Compared with the test results of the plate obtained in the comparative example 1, the plate obtained in the examples 2 and 3 has the advantage that the density is reduced at a higher speed and then becomes gentle with the increase of the addition amount of the compatibilizer, so the addition amount of the compatibilizer is not required to exceed 6 parts.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A preparation method of a polypropylene plate is characterized by comprising the following steps:
uniformly mixing 100 parts by weight of polypropylene base material, 1-10 parts by weight of foaming functional master batch and 1-6 parts by weight of compatibilizer at normal temperature to obtain a material;
conveying the materials to a screw extruder at the temperature of 200-240 ℃, extruding the materials in the screw extruder, shaping and cooling to obtain a polypropylene plate,
the compatibilizer is used for improving the compatibility of master batches and a polypropylene base material, the foaming master batches at least comprise a low-melting-point carrier, expandable microspheres and an auxiliary agent, the particle size of the expandable microspheres is 10-50 mu m, the initial foaming temperature is 120-145 ℃, the foaming peak temperature is 190-200 ℃, and the true density is 1000-1300 kg/m3。
2. The method for preparing the polypropylene board as claimed in claim 1, wherein the polypropylene substrate is at least one of pure PP, filling modified PP and glass fiber modified PP.
3. The method for preparing polypropylene plate according to claim 1, wherein the low-melting-point carrier is at least one of ethylene vinyl acetate, polyethylene and ethylene octene copolymer.
4. The method for preparing a polypropylene plate according to claim 1, wherein the expandable microspheres are polymer shells containing a volatile expanding agent as a core agent, and the shells are formed by polymerizing a monomer mixture of polymerizable monomers, wherein the polymerizable monomers are at least one of acrylonitrile, acrylate monomers, acrylamide monomers and acrylic monomers.
5. The method for preparing polypropylene plate according to claim 4, wherein the core agent is a low boiling point hydrocarbon having a boiling point not higher than that of the shell, and the core agent is at least one of n-pentane, isopentane, neopentane, butane, isobutane, hexane, isohexane, neohexane, heptane, isoheptane, octane, isooctane, and petroleum ether.
6. The method for preparing polypropylene plate according to claim 1, wherein the additive is at least one of PE wax, EBS wax and white oil.
7. The preparation method of the polypropylene plate according to claim 1, wherein the foaming functional master batch consists of a low-melting-point carrier, expandable microspheres, a foaming agent and an auxiliary agent.
8. The method for preparing polypropylene plate according to claim 7, wherein the foaming agent is at least one of PE wax, EBS wax and white oil.
9. The method for preparing polypropylene plate according to claim 1, wherein the compatibilizer is at least one of EVA grafted maleic anhydride, polyethylene grafted glycidyl methacrylate, SBS grafted maleic anhydride, SBS grafted glycidyl methacrylate, POE grafted maleic anhydride and POE grafted glycidyl methacrylate.
10. A polypropylene plate, which is prepared by the method of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392931.7A CN114213702A (en) | 2021-11-23 | 2021-11-23 | Polypropylene plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392931.7A CN114213702A (en) | 2021-11-23 | 2021-11-23 | Polypropylene plate and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114213702A true CN114213702A (en) | 2022-03-22 |
Family
ID=80697866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111392931.7A Pending CN114213702A (en) | 2021-11-23 | 2021-11-23 | Polypropylene plate and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114213702A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656681A (en) * | 2022-04-11 | 2022-06-24 | 泉州科牧智能厨卫有限公司 | Preparation method of microsphere foaming nylon material |
| CN114874550A (en) * | 2022-06-17 | 2022-08-09 | 天津佰盛环保科技有限公司 | Degradable foaming packaging material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054183A (en) * | 2018-08-10 | 2018-12-21 | 武汉理工大学 | A kind of high porosity polypropylene micro foaming composite material and preparation method thereof |
| CN112175339A (en) * | 2020-09-27 | 2021-01-05 | 快思瑞科技(上海)有限公司 | Polymer material and preparation method thereof |
| CN112662048A (en) * | 2020-12-23 | 2021-04-16 | 快思瑞科技(上海)有限公司 | Master batch material, foaming master batch preparation method and plastic preparation method |
| CN113072735A (en) * | 2021-03-03 | 2021-07-06 | 快思瑞科技(上海)有限公司 | Master batch material, foaming master batch preparation method and foaming material preparation method |
-
2021
- 2021-11-23 CN CN202111392931.7A patent/CN114213702A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054183A (en) * | 2018-08-10 | 2018-12-21 | 武汉理工大学 | A kind of high porosity polypropylene micro foaming composite material and preparation method thereof |
| CN112175339A (en) * | 2020-09-27 | 2021-01-05 | 快思瑞科技(上海)有限公司 | Polymer material and preparation method thereof |
| CN112662048A (en) * | 2020-12-23 | 2021-04-16 | 快思瑞科技(上海)有限公司 | Master batch material, foaming master batch preparation method and plastic preparation method |
| CN113072735A (en) * | 2021-03-03 | 2021-07-06 | 快思瑞科技(上海)有限公司 | Master batch material, foaming master batch preparation method and foaming material preparation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656681A (en) * | 2022-04-11 | 2022-06-24 | 泉州科牧智能厨卫有限公司 | Preparation method of microsphere foaming nylon material |
| CN114656681B (en) * | 2022-04-11 | 2024-03-08 | 泉州科牧智能厨卫有限公司 | Preparation method of microsphere foaming nylon material |
| CN114874550A (en) * | 2022-06-17 | 2022-08-09 | 天津佰盛环保科技有限公司 | Degradable foaming packaging material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114213702A (en) | Polypropylene plate and preparation method thereof | |
| CN113072735A (en) | Master batch material, foaming master batch preparation method and foaming material preparation method | |
| CN102888054B (en) | Antistatic polypropylene foam material and preparation method thereof | |
| CN112662048A (en) | Master batch material, foaming master batch preparation method and plastic preparation method | |
| CN102888055A (en) | High-melt strength polypropylene foam material and preparation method thereof | |
| CN112159540A (en) | Master batch material, preparation method and application of foaming master batch, and preparation method of foaming shoes | |
| WO2019160293A1 (en) | Method for producing low specific gravity molded foam by using propylene-based polymer | |
| CN113174104A (en) | Master batch material, foaming master batch preparation method and foaming material preparation method | |
| CN114316311A (en) | Foamed composite material and preparation method thereof | |
| CN104250326A (en) | Preparation method of polypropylene foaming plate or sheet | |
| US3138478A (en) | Method of encapsulating a particulate gas-evolving agent by polymerizing a monomer onto the surface of said agent | |
| CN101090934A (en) | Extruded propylene resin foam | |
| CN114230916B (en) | Polypropylene composite material and preparation method and application thereof | |
| CN110358133B (en) | Acrylate foam polymer replacing PVA collodion and preparation method thereof | |
| CN110698746A (en) | Polyethylene foam and preparation method thereof | |
| US3222304A (en) | Expandable polyethylene | |
| CN114163714A (en) | Foaming master batch, preparation method of foaming master batch and preparation method of foaming material | |
| CN104250401A (en) | Preparation method of polypropylene foaming beads | |
| CN104250384A (en) | Preparation method of polypropylene foaming beads | |
| CN113201210A (en) | Foaming master batch and preparation method thereof | |
| CN102888015A (en) | Composite foaming agent and polypropylene foam material prepared from same | |
| CN106279484B (en) | A kind of high fondant-strength impact polypropylene foaming plate and preparation method thereof | |
| JPS6369844A (en) | Expandable styrene based resin particle and production thereof | |
| CN110452465B (en) | High-gloss polypropylene micro-foaming material and preparation method thereof | |
| JP6404164B2 (en) | Seed polymerization seed particles, composite resin particles, expandable particles, expanded particles, and composite resin foam moldings |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220322 |
|
| RJ01 | Rejection of invention patent application after publication |