CN113072792A - Door seal material for washing machine and preparation method thereof - Google Patents
Door seal material for washing machine and preparation method thereof Download PDFInfo
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- CN113072792A CN113072792A CN202110295878.2A CN202110295878A CN113072792A CN 113072792 A CN113072792 A CN 113072792A CN 202110295878 A CN202110295878 A CN 202110295878A CN 113072792 A CN113072792 A CN 113072792A
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- Prior art keywords
- washing machine
- door seal
- seal material
- heat stabilizer
- filler
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 238000005406 washing Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 28
- 239000004743 Polypropylene Substances 0.000 claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 24
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 claims abstract description 23
- -1 polypropylene Polymers 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000003607 modifier Substances 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 13
- 238000011049 filling Methods 0.000 claims abstract description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 32
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000001291 vacuum drying Methods 0.000 claims description 8
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims description 7
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 239000003429 antifungal agent Substances 0.000 claims description 4
- 229940121375 antifungal agent Drugs 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- ZHTRFSJGUKYTPR-UHFFFAOYSA-N 2-octyl-1,2-thiazolidin-4-one Chemical compound CCCCCCCCN1CC(=O)CS1 ZHTRFSJGUKYTPR-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000004606 Fillers/Extenders Substances 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 150000004645 aluminates Chemical class 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- VTJUKNSKBAOEHE-UHFFFAOYSA-N calixarene Chemical compound COC(=O)COC1=C(CC=2C(=C(CC=3C(=C(C4)C=C(C=3)C(C)(C)C)OCC(=O)OC)C=C(C=2)C(C)(C)C)OCC(=O)OC)C=C(C(C)(C)C)C=C1CC1=C(OCC(=O)OC)C4=CC(C(C)(C)C)=C1 VTJUKNSKBAOEHE-UHFFFAOYSA-N 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 235000019837 monoammonium phosphate Nutrition 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
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 229940037312 stearamide Drugs 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 150000007970 thio esters Chemical class 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- 239000003242 anti bacterial agent Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000004636 vulcanized rubber Substances 0.000 abstract description 12
- 230000003449 preventive effect Effects 0.000 abstract description 5
- 230000009967 tasteless effect Effects 0.000 abstract description 3
- 230000003115 biocidal effect Effects 0.000 abstract 1
- 239000003974 emollient agent Substances 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 22
- 229920001971 elastomer Polymers 0.000 description 20
- 239000005060 rubber Substances 0.000 description 17
- 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 12
- YAHBZWSDRFSFOO-UHFFFAOYSA-L dimethyltin(2+);2-(2-ethylhexoxy)-2-oxoethanethiolate Chemical compound CCCCC(CC)COC(=O)CS[Sn](C)(C)SCC(=O)OCC(CC)CCCC YAHBZWSDRFSFOO-UHFFFAOYSA-L 0.000 description 12
- RZTYEUCBTNJJIW-UHFFFAOYSA-K silver;zirconium(4+);phosphate Chemical compound [Zr+4].[Ag+].[O-]P([O-])([O-])=O RZTYEUCBTNJJIW-UHFFFAOYSA-K 0.000 description 7
- 238000005303 weighing Methods 0.000 description 7
- 229920002725 thermoplastic elastomer Polymers 0.000 description 5
- 229920002943 EPDM rubber Polymers 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 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 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 239000004599 antimicrobial Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004634 thermosetting polymer Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 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 description 1
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 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 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000000022 bacteriostatic agent Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000004595 color masterbatch Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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)
- Sealing Material Composition (AREA)
Abstract
The embodiment of the application discloses a door seal material for a washing machine and a preparation method thereof, wherein the door seal material comprises the following components in parts by weight: 90-100 parts of SEBS; 40-60 parts of polypropylene; 110-130 parts of filling oil; 10-20 parts of a filler; 0.1-1 part of a surface modifier; 0.1-1 part of antioxidant; 0.1-0.5 part of a lubricant; 0.1-0.5 part of antibacterial mildew preventive; 0.1-2 parts of a heat stabilizer. Adopt the TPE material of the blending system with SEBS, polypropylene, filling oil, filler, surface modifier, antioxidant, emollient, antibiotic mould inhibitor and heat stabilizer among the technical scheme of this application embodiment, compare with current vulcanized rubber material, the material is tasteless, can bring good use for the user and experience, simultaneously, under the prerequisite that satisfies the user demand on washing machine, can promote manufacturing efficiency, shorten the shaping cycle, reduce manufacturing cost.
Description
Technical Field
The application relates to the technical field of materials, in particular to a door seal material for a washing machine and a preparation method thereof.
Background
The door seal of the drum washing machine on the current market is prepared by taking vulcanized rubber (EPDM) as a main raw material, wherein the vulcanized rubber is a thermosetting polymer, and vulcanization refers to that after certain temperature, pressure and time, rubber macromolecules and substances such as sulfur and the like are subjected to chemical reaction and are crosslinked to form a high polymer elastomer with a three-dimensional network structure.
In the production process of vulcanized rubber, raw rubber, a vulcanizing system compounding agent, a reinforcing filler, a softening plasticizer, an anti-aging agent, a special compounding agent and other raw materials are complex, so that the vulcanized rubber easily releases pungent toxic gases such as hydrogen sulfide, sulfur monoxide, sulfur dioxide, sulfur trioxide and the like, and is not beneficial to human health.
Disclosure of Invention
In order to solve the technical problems, embodiments of the application provide a door seal material for a washing machine and a preparation method thereof, raw materials adopted by the door seal material are SEBS, polypropylene, filling oil, a filler, a surface modifier, an antioxidant, a lubricant, an antibacterial mildew preventive and a heat stabilizer which are tasteless materials, and influence on human health is avoided.
According to an aspect of an embodiment of the present application, there is provided a door seal material for a washing machine, the door seal material comprising the following components in parts by weight: 90-100 parts of SEBS; 40-60 parts of polypropylene; 110-130 parts of filling oil; 10-20 parts of a filler; 0.1-1 part of a surface modifier; 0.1-1 part of antioxidant; 0.1-0.5 part of a lubricant; 0.1-0.5 part of antibacterial mildew preventive; 0.1-2 parts of a heat stabilizer.
In some embodiments of the present application, the SEBS has a star-shaped structure or a linear structure, and has a weight average molecular weight ranging from 10 to 30 ten thousand, wherein the content of styrene is 30 to 50%.
In some embodiments herein, the extender oil is one or more of polypropylene naphthenic oil, hydrogenated naphthenic oil, and hydrogenated white oil.
In some embodiments herein, the filler is one or more of silica, talc, calcium carbonate, wollastonite, and kaolin clay.
In some embodiments herein, the surface modifying agent is one or more of a titanate coupling agent, a silane coupling agent, and an aluminate coupling agent.
In some embodiments herein, the lubricant is one or more of ethylene bis stearamide, white mineral oil, stearamide, oleamide, calcium stearate, zinc stearate, high boiling paraffin wax, microcrystalline paraffin wax, and fatty acid.
In some embodiments of the present application, the heat stabilizer is one or more of an organotin-based stabilizer, a phenolic heat stabilizer, an amine-based heat stabilizer, a phosphite-based heat stabilizer, a semi-hindered phenolic heat stabilizer, a complex-based heat stabilizer of an acryl functional group and a thioester, and a calixarene-based heat stabilizer.
In some embodiments of the present application, the antimicrobial and antifungal agent is one or two of silver-loaded zirconium phosphate, ammonium dihydrogen phosphate, and n-octyl-isothiazolinone.
According to another aspect of the embodiments of the present application, there is also provided a method of preparing a door seal material for a washing machine, including: fully mixing SEBS and filling oil, and standing for 3-5 hours to obtain a primary mixture; adding polypropylene, a filler, a surface modifier, an antioxidant, a lubricant, a heat stabilizer and an antibacterial and mildewproof agent into the primary mixture, and uniformly mixing to obtain a second mixture; and carrying out melt blending, extrusion, cooling and granulation on the second mixture to obtain the door seal material for the washing machine.
In some embodiments of the present application, based on the foregoing scheme, the step of adding polypropylene, a filler, a surface modifier, an antioxidant, a lubricant, a heat stabilizer, and an antimicrobial and antifungal agent to the preliminary mixture, and mixing uniformly to obtain a second mixture includes: vacuum drying the antioxidant, the filler, the lubricant, the heat stabilizer and the antibacterial and mildewproof agent at 80 ℃ for 3-4 hours to obtain the dried antioxidant and the dried filler; dissolving the surface modifier in absolute ethyl alcohol, then adding the filler according to the proportion, uniformly stirring, and removing the solvent to obtain a mixture of the surface modifier and the filler; and adding polypropylene, the mixture of the surfactant and the filler, an antioxidant, a lubricant, a heat stabilizer and an antibacterial and mildewproof agent into the primary mixture in a corresponding ratio to obtain a second mixture.
The invention has the following beneficial effects: firstly, the raw materials SEBS, polypropylene, filling oil, filler, surface modifier, antioxidant, lubricant, antibacterial mildew preventive and heat stabilizer used for preparing the door seal material for the washing machine in the application are tasteless materials, and cannot influence human health.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Detailed Description
The door seal of the existing washing machine is made of vulcanized rubber EPDM (ethylene-propylene-diene monomer) as a main raw material, wherein vulcanization refers to that after a certain temperature, pressure and time, rubber macromolecules and substances such as sulfur and the like are subjected to chemical reaction and are crosslinked to form a high polymer elastomer with a three-dimensional network structure, and vulcanized rubber is a thermosetting polymer, wherein molecular chains cannot move after the action of crosslinking bonds among the molecular chains, so that the vulcanized rubber cannot be dissolved in a related solvent, cannot be melted after being heated, and is difficult to recycle after being used.
Meanwhile, in the production process of vulcanized rubber, the adopted raw materials comprise raw rubber, a vulcanizing system compounding agent, a reinforcing filler, a softening plasticizer, an anti-aging agent, a special compounding agent and the like, the raw materials are complex, and pungent toxic gases such as hydrogen sulfide, sulfur monoxide, sulfur dioxide, sulfur trioxide and the like released by vulcanized rubber can be remained in the closed inner cylinder for a long time and are harmful to human bodies. At present, the odor removal of door seal materials is mainly to reduce or cover the odor by adding bacteriostatic agents or aromatic agents or spraying the surface of the door seal, but the odor removal cannot be completely eradicated.
In addition, in the aspect of a molding process, the existing door seal taking vulcanized rubber EPDM as a main raw material is prepared by a compression molding process, and the production process flow comprises the following steps: preparing raw materials, cutting rubber by a rubber cutter, weighing ingredients, banburying, open milling, filtering rubber, cooling to obtain sheets, injecting rubber, vulcanizing, trimming, inspecting and packaging. The production process flow has the following defects:
(1) the product has a long forming period (330-350 s), the process is complex, multiple sets of molds are required to be produced simultaneously in order to meet the capacity requirement, and the production supply requirement is difficult to guarantee in the busy production season;
(2) the equipment required in the whole production process is as follows: the raw rubber cutting machine, the internal mixer, the open mill and the rubber injection machine are expensive;
(3) the whole production process needs 5-6 people for matching, the period is long, and the energy consumption is high.
Thermoplastic elastomers, referred to as TPE or TPR for short, are abbreviations of Thermoplastic rubbers, are elastomers having elasticity of rubber at normal temperature and moldable at high temperature, have physical and mechanical properties of vulcanized rubber and process processability of thermoplastics, are a novel polymer material between rubber and resin, and are often referred to as third-generation rubber, and have the following characteristics:
(1) the rubber can be processed and molded by standard thermoplastic processing equipment and technology, and the product production can be finished by using general plastic processing equipment without hot vulcanization, so that the production flow of the rubber industry is shortened by 1/4, the energy consumption can be saved by 25-40%, and the efficiency is improved by 10-20 times;
(2) the leftover materials can be recycled, so that resources are saved, and the environment is protected;
(3) the material has no peculiar smell, and the required color can be obtained by adding color master batches or dyeing raw materials.
In the application, a polystyrene-polyethylene/butylene-polystyrene block copolymer (SEBS) is adopted as one of TPEs, mainly composed of PP, SBS, fillers and additives, and is obtained by injection molding. SEBS is used as a novel multipurpose thermoplastic elastomer and has excellent ageing resistance, chemical corrosion resistance and low temperature resistance. At normal temperature, the Polystyrene (PS) segment of the SEBS and the middle ethylene/butylene (EB) elastic segment are thermodynamically incompatible, so that two phases can be separated and are in a micro-phase separation state, and the PS segment of the SEBS forms a phase region, is dispersed in a rubber phase formed by the EB segment and forms a physical crosslinking network with the EB segment. The SEBS has high elasticity of rubber, shows the fluidity of resin at high temperature and has good processing performance.
Furthermore, in the application, polypropylene (PP) is added into SEBS, and the added PP has good compatibility with the SEBS, so that the strength and the heat resistance of the material can be improved; the added filling oil can play a role in plasticizing and softening the composite material, and the SEBS/PP added filling oil can increase the molecular distance and weaken the acting force among molecular chains, so that the flexibility and the fluidity of the material are increased; the added filler can improve the hardness and rigidity of the material, reduce the size shrinkage of a workpiece, improve the heat resistance and chemical resistance of the material, improve the flame retardant effect of the material to a certain extent, and reduce the material cost; the added surface modifier can improve the compatibility between SEBS/PP and the filler; the added heat stabilizer can improve the stability of the material; the added antibacterial mildew preventive can prevent the material from mildewing in a humid environment.
The invention is further illustrated by the following examples.
Example 1
The door seal material for the washing machine is prepared according to the following method:
(1) weighing the following raw materials in parts by weight:
(2) pretreatment of raw materials:
a. vacuum drying the antioxidant 1010, calcium carbonate, EBS, methyl tin stabilizer and zirconium phosphate silver-carrying agent at 80 ℃ for 3 hours for later use;
b. the silane coupling agent was dissolved in 200mL of absolute ethanol, added to calcium carbonate, stirred uniformly, dried sufficiently, and then the solvent was removed.
(3) Adding SEBS into a high-speed mixer, slowly adding hydrogenated white oil, stirring uniformly, and standing for 5 h.
(4) Adding polypropylene, calcium carbonate, an antioxidant 1010, EBS, a methyl tin stabilizer and zirconium phosphate silver-loaded into a high-speed mixer, and uniformly stirring to obtain a mixture.
(5) And adding the mixture into a double-screw extruder for melt blending, extruding, cooling and granulating, wherein the blending extrusion temperature of the double-screw extruder is 180-230 ℃, and the screw rotating speed is 180-240 r/min.
Example 2
The door seal material for the washing machine is prepared according to the following method:
(1) weighing the following raw materials in parts by weight:
(2) pretreatment of raw materials:
a. carrying out vacuum drying on the antioxidant 1010, the talcum powder, the EBS, the methyl tin stabilizer and the zirconium phosphate silver-loaded powder at 80 ℃ for 3 hours for later use;
b. dissolving a silane coupling agent in 200mL of absolute ethyl alcohol, adding the solution into talcum powder, stirring uniformly, fully drying, and removing the solvent.
(3) Adding SEBS into a high-speed mixer, slowly adding hydrogenated white oil, stirring uniformly, and standing for 5 h.
(4) Adding polypropylene, talcum powder, antioxidant 1010, antioxidant 168, EBS, methyl tin stabilizer and zirconium phosphate silver-loaded into a high-speed mixer, and uniformly stirring to obtain a mixture.
(5) And adding the mixture into a double-screw extruder for melt blending, extruding, cooling and granulating, wherein the blending extrusion temperature of the double-screw extruder is 180-230 ℃, and the screw rotating speed is 180-240 r/min.
Example 3
The door seal material for the washing machine is prepared according to the following method:
(1) weighing the following raw materials in parts by weight:
(2) pretreatment of raw materials:
a. vacuum drying the antioxidant 1010, calcium carbonate, EBS, methyl tin stabilizer and zirconium phosphate silver-carrying agent at 80 ℃ for 3 hours for later use;
b. the silane coupling agent was dissolved in 200mL of absolute ethanol, added to calcium carbonate, stirred uniformly, dried sufficiently, and then the solvent was removed.
(3) Adding SEBS into a high-speed mixer, slowly adding hydrogenated white oil, stirring uniformly, and standing for 5 h.
(4) Adding polypropylene, calcium carbonate, an antioxidant 1010, EBS, a methyl tin stabilizer and zirconium phosphate silver-loaded into a high-speed mixer, and uniformly stirring to obtain a mixture.
(5) And adding the mixture into a double-screw extruder for melt blending, extruding, cooling and granulating, wherein the blending extrusion temperature of the double-screw extruder is 180-230 ℃, and the screw rotating speed is 180-240 r/min.
Example 4
The door seal material for the washing machine is prepared according to the following method:
(1) weighing the following raw materials in parts by weight:
(2) pretreatment of raw materials:
a. vacuum drying the antioxidant 1010, calcium carbonate, EBS, methyl tin stabilizer and zirconium phosphate silver-carrying agent at 80 ℃ for 3 hours for later use;
b. the silane coupling agent was dissolved in 200mL of absolute ethanol, added to calcium carbonate, stirred uniformly, dried sufficiently, and then the solvent was removed.
(3) Adding SEBS into a high-speed mixer, slowly adding hydrogenated white oil, stirring uniformly, and standing for 5 h.
(4) Adding polypropylene, calcium carbonate, an antioxidant 1010, EBS, a methyl tin stabilizer and zirconium phosphate silver-loaded into a high-speed mixer, and uniformly stirring to obtain a mixture.
(5) And adding the mixture into a double-screw extruder for melt blending, extruding, cooling and granulating, wherein the blending extrusion temperature of the double-screw extruder is 180-230 ℃, and the screw rotating speed is 180-240 r/min.
Example 5
The door seal material for the washing machine is prepared according to the following method:
(1) weighing the following raw materials in parts by weight:
(2) pretreatment of raw materials:
a. vacuum drying the antioxidant 1010, calcium carbonate, EBS, methyl tin stabilizer and zirconium phosphate silver-carrying agent at 80 ℃ for 3 hours for later use;
b. the silane coupling agent was dissolved in 200mL of absolute ethanol, added to calcium carbonate, stirred uniformly, dried sufficiently, and then the solvent was removed.
(3) Adding SEBS into a high-speed mixer, slowly adding hydrogenated white oil, stirring uniformly, and standing for 5 h.
(4) Adding polypropylene, calcium carbonate, an antioxidant 1010, EBS, a methyl tin stabilizer and zirconium phosphate silver-loaded into a high-speed mixer, and uniformly stirring to obtain a mixture.
(5) And adding the mixture into a double-screw extruder for melt blending, extruding, cooling and granulating, wherein the blending extrusion temperature of the double-screw extruder is 180-230 ℃, and the screw rotating speed is 180-240 r/min.
Example 6
The door seal material for the washing machine is prepared according to the following method:
(1) weighing the following raw materials in parts by weight:
(2) pretreatment of raw materials:
a. vacuum drying the antioxidant 1010, calcium carbonate, EBS, methyl tin stabilizer and zirconium phosphate silver-carrying agent at 80 ℃ for 3 hours for later use;
b. the silane coupling agent was dissolved in 200mL of absolute ethanol, added to calcium carbonate, stirred uniformly, dried sufficiently, and then the solvent was removed.
(3) Adding SEBS into a high-speed mixer, slowly adding hydrogenated white oil, stirring uniformly, and standing for 5 h.
(4) Adding polypropylene, calcium carbonate, an antioxidant 1010, EBS, a methyl tin stabilizer and zirconium phosphate silver-loaded into a high-speed mixer, and uniformly stirring to obtain a mixture.
(5) And adding the mixture into a double-screw extruder for melt blending, extruding, cooling and granulating, wherein the blending extrusion temperature of the double-screw extruder is 180-230 ℃, and the screw rotating speed is 180-240 r/min.
The following table shows the main performance indexes of the door seals for washing machines prepared in examples 1 to 6.
From the results in the above table, it can be seen that the odorless door seal material for a washing machine prepared in the present application has good mechanical properties, is resistant to bleaching powder, detergent and hot water, and can be used on a washing machine.
The above description is only a preferred exemplary embodiment of the present application, and is not intended to limit the embodiments of the present application, and those skilled in the art can easily make various changes and modifications according to the main concept and spirit of the present application, so that the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The door seal material for the washing machine is characterized by comprising the following components in parts by weight:
2. the door seal material for the washing machine as claimed in claim 1, wherein the SEBS has a star-shaped structure or a linear structure, and has a weight average molecular weight ranging from 10 to 30 ten thousand, wherein the styrene content is 30 to 50%.
3. The door seal material for a washing machine as claimed in claim 1, wherein the extender oil is one or more of polypropylene naphthenic oil, hydrogenated naphthenic oil and hydrogenated white oil.
4. The door seal material for a washing machine as claimed in claim 1, wherein the filler is one or more of silica, talc, calcium carbonate, wollastonite and kaolin.
5. The door seal material for a washing machine as claimed in claim 1, wherein the surface modifier is one or more of a titanate coupling agent, a silane coupling agent and an aluminate coupling agent.
6. The door seal material for a washing machine as claimed in claim 1, wherein the lubricant is one or more of ethylene bis stearamide, white mineral oil, stearamide, oleamide, calcium stearate, zinc stearate, high boiling paraffin, microcrystalline paraffin and fatty acid.
7. The door seal material for washing machine as claimed in claim 1, wherein the heat stabilizer is one or more of an organotin-based stabilizer, a phenol-based heat stabilizer, an amine-based heat stabilizer, a phosphite-based heat stabilizer, a semi-hindered phenol-based heat stabilizer, a complex-based heat stabilizer of an acryl functional group and a thioester, and a calixarene-based heat stabilizer.
8. The door seal material for a washing machine according to claim 1, wherein the antibacterial and antifungal agent is one or more of silver-loaded zirconium phosphate, ammonium dihydrogen phosphate, and n-octyl-isothiazolinone.
9. A method for preparing a door seal material for a washing machine, which is used for preparing the door seal material for a washing machine according to any one of claims 1 to 8, comprising:
fully mixing SEBS with the filling oil, and standing for 3-5 hours to obtain a primary mixture;
adding polypropylene, a filler, a surface modifier, an antioxidant, a lubricant, a heat stabilizer and an antibacterial and mildewproof agent into the primary mixture, and uniformly mixing to obtain a second mixture;
and carrying out melt blending, extrusion, cooling and granulation on the second mixture to obtain the door seal material for the washing machine.
10. The preparation method according to claim 9, wherein the step of adding polypropylene, filler, surface modifier, antioxidant, lubricant, heat stabilizer and antibacterial and antifungal agent into the preliminary mixture and uniformly mixing to obtain a second mixture comprises the following steps:
vacuum drying the antioxidant, the filler, the lubricant, the heat stabilizer and the antibacterial and mildewproof agent at 80 ℃ for 3-4 hours to obtain the dried antioxidant and the dried filler;
dissolving the surface modifier in absolute ethyl alcohol, then adding the filler according to the proportion, uniformly stirring, and removing the solvent to obtain a mixture of the surface modifier and the filler;
and adding polypropylene, the mixture of the surfactant and the filler, an antioxidant, a lubricant, a heat stabilizer and an antibacterial and mildewproof agent into the primary mixture in a corresponding ratio to obtain a second mixture.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656795A (en) * | 2022-03-01 | 2022-06-24 | 海信（山东）冰箱有限公司 | Door seal material, preparation method thereof, door seal ring and household appliance |
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| CN103980651A (en) * | 2014-05-23 | 2014-08-13 | 合肥华凌股份有限公司 | High-elasticity thermoplastic elastomer door seal for refrigeration device and production method and refrigeration device |
| CN108795064A (en) * | 2018-06-12 | 2018-11-13 | 安徽万朗磁塑股份有限公司 | A kind of thermoplastic elastomer (TPE) refrigerator door seal strip material and preparation method |
| CN111138793A (en) * | 2020-01-09 | 2020-05-12 | 珠海格力绿色再生资源有限公司 | Sealing ring of drum washing machine and preparation method thereof |
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2021
- 2021-03-19 CN CN202110295878.2A patent/CN113072792A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980651A (en) * | 2014-05-23 | 2014-08-13 | 合肥华凌股份有限公司 | High-elasticity thermoplastic elastomer door seal for refrigeration device and production method and refrigeration device |
| CN108795064A (en) * | 2018-06-12 | 2018-11-13 | 安徽万朗磁塑股份有限公司 | A kind of thermoplastic elastomer (TPE) refrigerator door seal strip material and preparation method |
| CN111138793A (en) * | 2020-01-09 | 2020-05-12 | 珠海格力绿色再生资源有限公司 | Sealing ring of drum washing machine and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114656795A (en) * | 2022-03-01 | 2022-06-24 | 海信（山东）冰箱有限公司 | Door seal material, preparation method thereof, door seal ring and household appliance |
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