CN116554597A - High glow wire flame-retardant polypropylene material and preparation method thereof - Google Patents
High glow wire flame-retardant polypropylene material and preparation method thereof Download PDFInfo
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- CN116554597A CN116554597A CN202310614696.6A CN202310614696A CN116554597A CN 116554597 A CN116554597 A CN 116554597A CN 202310614696 A CN202310614696 A CN 202310614696A CN 116554597 A CN116554597 A CN 116554597A
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- polypropylene material
- flame retardant
- acrylic
- glow wire
- retardant polypropylene
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- -1 polypropylene Polymers 0.000 title claims abstract description 68
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 55
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 55
- 239000003063 flame retardant Substances 0.000 title claims abstract description 51
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000178 monomer Substances 0.000 claims abstract description 31
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 13
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 12
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000003999 initiator Substances 0.000 claims abstract description 4
- 238000010992 reflux Methods 0.000 claims abstract description 4
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 3
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- HGTUJZTUQFXBIH-UHFFFAOYSA-N (2,3-dimethyl-3-phenylbutan-2-yl)benzene Chemical group C=1C=CC=CC=1C(C)(C)C(C)(C)C1=CC=CC=C1 HGTUJZTUQFXBIH-UHFFFAOYSA-N 0.000 claims description 3
- PVKCVCDTYNNNOG-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;hydrobromide Chemical class [Br-].NC1=NC(N)=[NH+]C(N)=N1 PVKCVCDTYNNNOG-UHFFFAOYSA-N 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 125000005250 alkyl acrylate group Chemical group 0.000 claims description 3
- 229910021538 borax Inorganic materials 0.000 claims description 3
- 239000012760 heat stabilizer Substances 0.000 claims description 3
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 3
- 150000004692 metal hydroxides Chemical class 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000004328 sodium tetraborate Substances 0.000 claims description 3
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 3
- BZQKBFHEWDPQHD-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-[2-(2,3,4,5,6-pentabromophenyl)ethyl]benzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1CCC1=C(Br)C(Br)=C(Br)C(Br)=C1Br BZQKBFHEWDPQHD-UHFFFAOYSA-N 0.000 claims description 2
- NZUPFZNVGSWLQC-UHFFFAOYSA-N 1,3,5-tris(2,3-dibromopropyl)-1,3,5-triazinane-2,4,6-trione Chemical compound BrCC(Br)CN1C(=O)N(CC(Br)CBr)C(=O)N(CC(Br)CBr)C1=O NZUPFZNVGSWLQC-UHFFFAOYSA-N 0.000 claims description 2
- FWWXYLGCHHIKNY-UHFFFAOYSA-N 2-ethoxyethyl prop-2-enoate Chemical compound CCOCCOC(=O)C=C FWWXYLGCHHIKNY-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 150000003017 phosphorus Chemical class 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000012745 toughening agent Substances 0.000 claims description 2
- 239000001993 wax Substances 0.000 claims 2
- 239000005909 Kieselgur Substances 0.000 claims 1
- 150000008301 phosphite esters Chemical class 0.000 claims 1
- 150000003014 phosphoric acid esters Chemical class 0.000 claims 1
- DOKHEARVIDLSFF-UHFFFAOYSA-N prop-1-en-1-ol Chemical compound CC=CO DOKHEARVIDLSFF-UHFFFAOYSA-N 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 125000004185 ester group Chemical group 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229960001631 carbomer Drugs 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 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 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229920001523 phosphate polymer Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1818—C13or longer chain (meth)acrylate, e.g. stearyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
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 a high glowing filament flame-retardant polypropylene material and a preparation method thereof, wherein the high glowing filament flame-retardant polypropylene material is prepared from the following raw materials in parts by weight: 100-150 parts of polypropylene resin, 20-30 parts of modified polyacrylic resin, 10-30 parts of filler, 5-20 parts of flame retardant, 1-3 parts of dispersing agent and 1-5 parts of other auxiliary agents; wherein the modified polyacrylic resin is a product obtained by polymerizing an acrylic acid monomer, an acrylic acid alkyl ester monomer, acrylic alcohol and an acrylic ester monomer containing an ethoxy side chain. The preparation method of the modified polyacrylic resin comprises the following steps: and (3) blending acrylic acid monomer, acrylic acid alkyl ester monomer, acrylic alcohol, acrylic ester monomer containing ethoxy side chains, an emulsifier and an initiator BPO, and then heating and refluxing for reaction to obtain a product. The invention obviously improves the high temperature resistance and flame retardance while ensuring the stability and mechanical property of the polypropylene composite material, and overcomes the defects existing in the existing products.
Description
Technical Field
The invention relates to the technical field of polypropylene composite materials, in particular to a high glow wire flame-retardant polypropylene material and a preparation method thereof.
Background
Polypropylene (PP) is one of five general plastics, has excellent comprehensive properties, and has wide application in various industries, however, the inflammable characteristic of polypropylene causes the polypropylene to have certain potential safety hazard, also limits the application space and prevents the further development of polypropylene materials. Along with the development of technology and the improvement of safety requirements, the flame retardance and the high temperature resistance of the polypropylene material are also higher and higher, so that the improvement of the flame retardance of the polypropylene is always the focus of research in related industries.
The existing polypropylene flame-retardant products generally adopt a means of adding flame retardant and flame-retardant filler to improve the flame-retardant capability of the composite material, however, the compatibility between the inorganic filler and polypropylene is poor, and the inorganic filler and polypropylene are difficult to uniformly and stably combine, so that the content of the filler is required to be increased to realize the stronger flame-retardant capability, but the mechanical performance of the composite material is reduced due to the addition of a large amount of filler, so that the composite material has more defects, and the market demand is difficult to meet.
In view of the foregoing, there is a need to develop a new technical solution to solve the problems in the prior art.
Disclosure of Invention
Based on the above, the invention develops a high glow wire flame retardant polypropylene material. The modified polyacrylic resin is used as a component, and contains a large amount of carboxyl, alkoxy and ester groups, so that the modified polyacrylic resin can be better combined with components such as filler, auxiliary agent and the like, the stability and mechanical property of the polypropylene composite material are ensured, the high temperature resistance and flame retardance are obviously improved, and the defects in the existing products are overcome.
The invention aims to provide a high glow wire flame-retardant polypropylene material which is prepared from the following raw materials in parts by weight:
wherein,,
the modified polyacrylic resin is a product obtained by polymerizing an acrylic acid monomer, an acrylic acid alkyl ester monomer, an acrylic alcohol and an acrylic ester monomer containing an ethoxy side chain;
the alkyl group in the alkyl acrylate monomer has 12-24 carbon atoms;
the acrylate monomer containing the ethoxy side chain is selected from one or more of ethoxy ethyl acrylate and carbopol acrylate.
Further, the preparation method of the modified polyacrylic resin comprises the following steps:
and (3) blending acrylic acid monomer, acrylic acid alkyl ester monomer, acrylic alcohol, acrylic ester monomer containing ethoxy side chains, an emulsifier and an initiator BPO, and then heating and refluxing for reaction to obtain a product.
Further, the molar ratio of the acrylic acid monomer to the acrylic acid alkyl ester monomer to the acrylic alcohol to the acrylic ester monomer containing ethoxy side chains is 10 (5-15): (1-5): (1-3).
Further, the heating reflux reaction time is 1-4h.
Further, the filler is selected from one or more of talcum powder, ceramic powder, diatomite, mica powder, borax, sulfate, carbonate, metal oxide and metal hydroxide.
Further, the sulfate is preferably barium sulfate; the carbonate is preferably calcium carbonate; the metal oxide is preferably aluminum oxide or antimony oxide; the metal hydroxide is preferably aluminum hydroxide or magnesium hydroxide.
Further, the flame retardant is selected from one or more of phosphate, phosphite, phosphonate, organic phosphorus salt, phosphate polymer, phosphonate polymer, melamine hydrobromide, tris (2, 3-dibromopropyl) isocyanurate, brominated epoxy, decabromodiphenylethane, and dicumyl.
Further, the dispersant is selected from stearate, polyethylene wax, polypropylene wax, ethylene bis-stearamide.
Further, the other auxiliary agents are selected from one or more of antioxidants, compatilizers, heat stabilizers and toughening agents.
The invention also provides a preparation method of the high glow wire flame-retardant polypropylene material, which comprises the following steps:
mixing polypropylene resin, modified polyacrylic resin and filler, heating and stirring, adding a flame retardant, a dispersing agent and other auxiliary agents, uniformly mixing, drying, and adding into a double-screw extruder for melt extrusion and granulation to obtain the high glow wire flame-retardant polypropylene material.
The invention has the following beneficial effects:
the high glow wire flame-retardant polypropylene material provided by the invention contains modified polyacrylic resin, and the modified polyacrylic resin is polymerized by acrylic acid monomer, acrylic acid alkyl ester monomer, acrylic alcohol and acrylic ester monomer containing ethoxy side chains, so that a large number of hydroxyl groups, carboxyl groups, ester groups, ether bonds and long-chain branches are introduced into a molecular chain, and therefore, the modified polyacrylic resin has good compatibility with the polypropylene resin; on one hand, the long branched chain is more easily entangled with the components, so that the relative dispersion of the components is ensured; on the other hand, hydroxyl groups, carboxyl groups and ester groups in the modified polyacrylic resin can generate stronger intermolecular forces (such as hydrogen bonds and the like) after contacting with polar groups on the surfaces of metal oxide fillers (the surfaces of which are covered with a large number of hydroxyl groups) and flame retardants, so that a more stable and uniform network structure is formed. Therefore, the flame retardant and high temperature resistant performance is realized under the condition of low filler content, the mechanical strength of the composite material is ensured, the progress of multiple performances is realized, and the flame retardant and high temperature resistant composite material has good application prospect.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following examples are set forth. The starting materials, reactions and workup procedures used in the examples are those commonly practiced in the market and known to those skilled in the art unless otherwise indicated.
The words "preferred," "more preferred," and the like in the present disclosure refer to embodiments of the present disclosure that may provide certain benefits in some instances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
It should be understood that, except in any operating examples, or where otherwise indicated, quantities or all numbers expressing, for example, quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties to be obtained by the present invention.
The polypropylene resin in the examples of the present invention was BX3800 from Korean SK chemistry.
The filler in the embodiment of the invention is borax, and the average grain diameter is 30 mu m.
The flame retardant in the embodiment of the invention is triphenyl phosphate, melamine hydrobromide and dicumyl ligand (1:1:1, m/m/m).
The dispersing agent in the embodiment of the invention is polyethylene wax.
Other auxiliary agents in the embodiment of the invention comprise antioxidant 1010 and heat stabilizer melamine in a mass ratio of 1:1.
In the embodiment of the invention, "parts" refer to parts by weight.
The preparation method of the modified polyacrylic resin in the embodiment of the invention comprises the following steps:
acrylic acid, methacrylic acid twenty ester, acrylic alcohol, acrylic acid carbomer, sodium dodecyl sulfate (accounting for 5wt% of the methacrylic acid twenty ester) and an initiator BPO (accounting for 0.5% of the mass of the reaction system) are mixed in enough water (acrylic acid: methacrylic acid twenty ester: acrylic acid carbomer=10:5:1:2, n/n/n/n) and heated and refluxed for 3 hours to obtain the product.
Example 1
The high glow wire flame-retardant polypropylene material is prepared from the following raw materials in parts by weight:
the preparation method of the high glow wire flame-retardant polypropylene material comprises the following steps:
mixing the polypropylene resin, the modified polyacrylic resin and the filler according to the parts by weight, stirring for 1h at 50 ℃, adding the flame retardant, the dispersing agent and other auxiliary agents, stirring and mixing uniformly, removing water, drying, and finally adding into a double-screw extruder for melt extrusion granulation at 180-200 ℃ to obtain the high glow wire flame retardant polypropylene material.
Example 2
The high glow wire flame-retardant polypropylene material is prepared from the following raw materials in parts by weight:
the preparation method of the high glow wire flame-retardant polypropylene material comprises the following steps:
mixing the polypropylene resin, the modified polyacrylic resin and the filler according to the parts by weight, stirring for 1h at 50 ℃, adding the flame retardant, the dispersing agent and other auxiliary agents, stirring and mixing uniformly, removing water, drying, and finally adding into a double-screw extruder for melt extrusion granulation at 180-200 ℃ to obtain the high glow wire flame retardant polypropylene material.
Example 3
The high glow wire flame-retardant polypropylene material is prepared from the following raw materials in parts by weight:
the preparation method of the high glow wire flame-retardant polypropylene material comprises the following steps:
mixing the polypropylene resin, the modified polyacrylic resin and the filler according to the parts by weight, stirring for 1h at 50 ℃, adding the flame retardant, the dispersing agent and other auxiliary agents, stirring and mixing uniformly, removing water, drying, and finally adding into a double-screw extruder for melt extrusion granulation at 180-200 ℃ to obtain the high glow wire flame retardant polypropylene material.
Comparative example 1
The comparative example differs from example 1 in that: the modified polyacrylic resin was replaced with polyacrylic resin (purchased from Zhejiang Sanyi New Material Co., ltd.) in parts by weight, and the other components and preparation method were the same as in example 1.
Test case
The testing method comprises the following steps:
performance tests are carried out on the flame-retardant polypropylene samples prepared in the examples 1-3 and the comparative example 1, and the flame retardant performance, the flammability index and the mechanical property are measured according to the UL-94 standard, the GB/T5169.12-2006 standard and the like;
high temperature resistance: the flame retardant polypropylene samples prepared in examples 1 to 3 and comparative example 1 were left to stand at 80℃for 30 days, and the mechanical properties were again examined.
The test results are shown in Table 1.
TABLE 1 Performance test results
| Project | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| Flame retardance/1.6 mm | V0 | V0 | V0 | V0 |
| Flammability index at 850℃ | By passing through | By passing through | By passing through | By passing through |
| Tensile Strength (Normal temperature)/MPa | 55.6 | 56.1 | 54.7 | 54.1 |
| Tensile Strength (30 days at 80 ℃ C.)/MPa | 52.7 | 53.0 | 51.1 | 47.2 |
As can be seen from Table 1, the high glow wire flame retardant polypropylene materials prepared in examples 1-3 have flame retardant, high temperature resistant and mechanical properties which are equivalent to those of comparative example 1 at normal temperature, and all have ideal values; however, after long-term placement at high temperature, the mechanical properties of the samples of the invention are still maintained at a relatively stable level, and the decrease amplitude is not large, which indicates that the compatibility among the components is good, while comparative example 1 shows a relatively large decrease. This demonstrates that the samples of the present invention have more excellent high temperature resistance and stable mechanical properties.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The high glow wire flame-retardant polypropylene material is characterized by being prepared from the following raw materials in parts by weight:
wherein,,
the modified polyacrylic resin is a product obtained by polymerizing an acrylic acid monomer, an acrylic acid alkyl ester monomer, an acrylic alcohol and an acrylic ester monomer containing an ethoxy side chain;
the alkyl group in the alkyl acrylate monomer has 12-24 carbon atoms;
the acrylate monomer containing the ethoxy side chain is selected from one or more of ethoxy ethyl acrylate and carbopol acrylate.
2. The high glow wire flame retardant polypropylene material according to claim 1, wherein the preparation method of the modified polyacrylic resin comprises the steps of:
and (3) blending acrylic acid monomer, acrylic acid alkyl ester monomer, acrylic alcohol, acrylic ester monomer containing ethoxy side chains, an emulsifier and an initiator BPO, and then heating and refluxing for reaction to obtain a product.
3. The high glowing filament flame retardant polypropylene material of claim 2, wherein the molar ratio of acrylic monomer, alkyl acrylate monomer, propenol, acrylate monomer containing ethoxy side chains is 10 (5-15): (1-5): (1-3).
4. The high glow wire flame retardant polypropylene material according to claim 2, wherein said heat reflow reaction is for a period of 1 to 4 hours.
5. The high glow wire flame retardant polypropylene material according to claim 1, wherein said filler is selected from one or more of talc, ceramic powder, diatomaceous earth, mica powder, borax, sulfate, carbonate, metal oxide, metal hydroxide.
6. The high glow wire flame retardant polypropylene material according to claim 1, wherein the flame retardant is selected from one or more of the group consisting of phosphate esters, phosphite esters, phosphonate esters, organic phosphorus salts, phosphate ester polymers, melamine hydrobromide salts, tris (2, 3-dibromopropyl) isocyanurate, brominated epoxy, decabromodiphenylethane, and dicumyl.
7. The high glow wire flame retardant polypropylene material according to claim 1, wherein said dispersant is selected from the group consisting of stearates, polyethylene waxes, polypropylene waxes, ethylene bis stearamide.
8. The high glow wire flame retardant polypropylene material according to claim 1, wherein said other auxiliary agent is selected from one or more of antioxidants, compatibilizers, heat stabilizers, toughening agents.
9. The method for preparing the high glow wire flame retardant polypropylene material according to any one of claims 1 to 8, comprising the steps of:
mixing polypropylene resin, modified polyacrylic resin and filler, heating and stirring, adding a flame retardant, a dispersing agent and other auxiliary agents, uniformly mixing, drying, and adding into a double-screw extruder for melt extrusion and granulation to obtain the high glow wire flame-retardant polypropylene material.
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