CN116769133B - Production process of new energy automobile interior damping material - Google Patents
Production process of new energy automobile interior damping material Download PDFInfo
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- CN116769133B CN116769133B CN202310648503.9A CN202310648503A CN116769133B CN 116769133 B CN116769133 B CN 116769133B CN 202310648503 A CN202310648503 A CN 202310648503A CN 116769133 B CN116769133 B CN 116769133B
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- silicon dioxide
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- 239000000463 material Substances 0.000 title claims abstract description 50
- 238000013016 damping Methods 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 104
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 52
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 52
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 41
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 41
- 229920002635 polyurethane Polymers 0.000 claims abstract description 33
- 239000004814 polyurethane Substances 0.000 claims abstract description 33
- 239000003063 flame retardant Substances 0.000 claims abstract description 19
- 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 claims abstract description 18
- 238000005187 foaming Methods 0.000 claims abstract description 10
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 53
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 42
- 238000002156 mixing Methods 0.000 claims description 23
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 18
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims description 18
- 239000000839 emulsion Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical group C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 11
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 11
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 11
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- 235000021355 Stearic acid Nutrition 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 9
- 230000001804 emulsifying effect Effects 0.000 claims description 9
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 claims description 9
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 9
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 9
- 239000008117 stearic acid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- LEWQIRKQOJDHEC-UHFFFAOYSA-N 3-[chloro(prop-2-enoxy)phosphoryl]oxyprop-1-ene Chemical compound C=CCOP(=O)(Cl)OCC=C LEWQIRKQOJDHEC-UHFFFAOYSA-N 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 239000004088 foaming agent Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- KDHWOCLBMVSZPG-UHFFFAOYSA-N 3-imidazol-1-ylpropan-1-amine Chemical compound NCCCN1C=CN=C1 KDHWOCLBMVSZPG-UHFFFAOYSA-N 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 claims description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000012265 solid product Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- FRCHKSNAZZFGCA-UHFFFAOYSA-N 1,1-dichloro-1-fluoroethane Chemical compound CC(F)(Cl)Cl FRCHKSNAZZFGCA-UHFFFAOYSA-N 0.000 claims description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims description 2
- 229940063655 aluminum stearate Drugs 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 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
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 11
- 239000011496 polyurethane foam Substances 0.000 abstract description 11
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 19
- 238000012360 testing method Methods 0.000 description 17
- 238000002360 preparation method Methods 0.000 description 16
- 239000011359 shock absorbing material Substances 0.000 description 14
- 125000003342 alkenyl group Chemical group 0.000 description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000012086 standard solution Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 238000007259 addition reaction Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 238000006845 Michael addition reaction Methods 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- UMVBXBACMIOFDO-UHFFFAOYSA-N [N].[Si] Chemical compound [N].[Si] UMVBXBACMIOFDO-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5096—Polyethers having heteroatoms other than oxygen containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- C08J9/12—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 physical blowing agent
- C08J9/14—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 physical blowing agent organic
- C08J9/141—Hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to the technical field of composite materials, in particular to a production process of a new energy automobile interior damping material, which is prepared by foaming polyurethane serving as a matrix to form a polyurethane foam material and nitrogen-silicon heterocycle modified polyethylene glycol serving as a soft segment of the polyurethane, so that the mechanical property and heat resistance of the polyurethane are improved, the compression set of the polyurethane foam damping material is effectively reduced, the seat is not easy to deform under long-term pressure, and meanwhile, the modified nano silicon dioxide with a nitrogen-phosphorus flame retardant modified on the surface is used as a filler, so that the flame retardant performance of the damping material can be effectively improved, and a synergistic flame retardant effect is generated with nitrogen-silicon heterocycle containing flame retardant elements, so that the use safety of a new energy automobile is ensured.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a production process of a new energy automobile interior damping material.
Background
Along with the improvement of the living standard of people, the environmental protection consciousness of people is gradually enhanced, wherein, new energy automobiles are greatly popularized by the country because of saving fuel oil resources and reducing exhaust emission, and meanwhile, the noise is low, and the automobile is economical and practical, so that the automobile is increasingly popular with people. People are also particularly careful about their interior trim when selecting new energy vehicles, in addition to their performance and appearance, because a good driving environment directly affects the driving experience of the vehicle owner. Among them, the car seat is the car interior of people's primary attention, common seat material is woven cloth, polyvinyl chloride and polyurethane, etc., the woven cloth is good in permeability, but the spot is difficult to clear up; polyvinyl chloride is light and thin in texture, strong in wear resistance, but poor in air permeability and thermal stability; polyurethane has soft texture, good air permeability, good waterproofness, strong toughness and good damping effect, and is often used as a damping material of an automobile seat.
The Chinese patent with the search patent number of CN108003323B discloses a damping and energy-absorbing polyurethane material and a preparation method thereof, and the prepared polyurethane material has good damping and energy-absorbing effects and is environment-friendly.
The Chinese patent with the application number of CN107602817B discloses a high cold-resistant polyurethane shock pad and a preparation method thereof, and the prepared high cold-resistant polyurethane shock pad has good shock absorption performance and excellent dynamic fatigue resistance, and can be applied to the field of automobile shock absorption in extremely cold areas.
However, the use frequency of the automobile seat is extremely high, deformation can be generated when the automobile seat is in a pressure state for a long time, so that the surface of the seat is uneven, the automobile seat is difficult to recover, and the overall aesthetic degree of the seat and the comfort degree of the seat are influenced.
In addition, compared with the traditional automobile, the new energy automobile has the problems of faults of a charger and a storage battery, insulation aging of a circuit, high power consumption, high load and the like, and fire disaster is easy to cause, so that higher requirements are put forward on damping materials of automobile interiors.
Therefore, the development of the automobile interior damping material with low compression set and flame retardance is of great significance for improving the safety of new energy automobiles and the development of automobile interior composite materials.
Disclosure of Invention
The invention aims to provide a production process of a new energy automobile interior damping material, which solves the following technical problems:
(1) Solves the problem that the new energy automobile interior damping material is easy to deform;
(2) Solves the problem of poor flame retardance of the new energy automobile interior damping material.
The aim of the invention can be achieved by the following technical scheme:
the production process of the new energy automobile interior damping material comprises the following raw materials in parts by weight: 60-80 parts of nitrogen-silicon heterocycle modified polyethylene glycol, 20-30 parts of diphenylmethane diisocyanate, 1-2 parts of dibutyltin dilaurate, 4-6 parts of dimethylolpropionic acid, 8-10 parts of triethylamine, 20-30 parts of deionized water, 0.2-1 part of an antioxidant, 2-3 parts of a lubricant, 5-6 parts of modified nano silicon dioxide and 2-3 parts of a foaming agent; the nitrogen silicon heterocycle modified polyethylene glycol is prepared by introducing nitrogen silicon heterocycle into a polyethylene glycol diglycidyl ether structure; the modified nano silicon dioxide is prepared by modifying a nitrogen-phosphorus flame retardant on the surface of the nano silicon dioxide;
the production process comprises the following steps:
step one: mixing the nitrogen silicon heterocycle modified polyethylene glycol, the diphenylmethane diisocyanate and the dibutyl tin dilaurate, uniformly stirring, raising the temperature to 70-80 ℃, and stirring for reacting for 1-3 hours to obtain a modified polyurethane prepolymer;
step two: adding dimethylolpropionic acid into the modified polyurethane prepolymer, continuing to react for 4-6 hours, reducing the temperature to 35-40 ℃, adding triethylamine to neutralize for 5-10 minutes, adding deionized water, and stirring and emulsifying for 30-40 minutes to obtain modified polyurethane emulsion;
step three: adding an antioxidant, a lubricant and modified nano silicon dioxide into the modified polyurethane emulsion, uniformly stirring, stirring for 5-10min at the rotating speed of 1000-1500r/min, adding a foaming agent, uniformly mixing, pouring into a mould, foaming at room temperature, curing and forming for 12-24h, and removing the mould to obtain the new energy automobile interior damping material.
Further, the production process of the nitrogen silicon heterocycle modified polyethylene glycol comprises the following steps:
mixing polyethylene glycol diglycidyl ether with N, N-dimethylformamide, stirring uniformly, adding hetero-silicon tri-cyclic ethylene glycol and a catalyst, introducing nitrogen for protection, raising the temperature of the system to 60-70 ℃, reacting for 12-18h, and distilling under reduced pressure to remove the solvent after the reaction is finished to obtain the nitrogen silicon heterocyclic modified polyethylene glycol.
Further, the molecular weight of the polyethylene glycol diglycidyl ether is 560.
Further, the catalyst is any one of tetrabutylammonium bromide or boron trifluoride diethyl etherate.
Through the technical scheme, under the action of a catalyst, an epoxy group in the polyethylene glycol diglycidyl ether and a hydroxyl group in the azasilatrane ethylene glycol undergo an addition reaction, so that a nitrogen silicon heterocycle rigid structure is introduced into the polyethylene glycol diglycidyl ether structure in a chemical bond connection mode, and meanwhile, an active hydroxyl group is introduced due to a ring opening reaction, so that the nitrogen silicon heterocycle modified polyethylene glycol is prepared.
Further, the antioxidant is any one of antioxidant 1010, antioxidant 168, antioxidant 264 or antioxidant 1076.
Further, the lubricant is any one of stearic acid, polyethylene wax, sodium stearate, aluminum stearate or zinc stearate; the foaming agent is any one of n-pentane, cyclopentane, pentafluoropropane or dichlorofluoroethane.
Further, the production process of the modified nano silicon dioxide comprises the following steps:
a: adding nano silicon dioxide into toluene, uniformly mixing, heating to 50-60 ℃, adding diallyl chlorophosphate and an acid-binding agent, reacting for 2-3 hours, centrifuging to separate a solid product after the reaction is finished, washing, and drying to obtain a modified nano silicon dioxide intermediate;
b: dispersing the modified nano silicon dioxide intermediate into tetrahydrofuran, stirring uniformly, adding 1- (3-aminopropyl) imidazole, stirring at 25-30 ℃ for reaction for 6-8h, filtering after reaction, washing, and drying in vacuum to obtain the modified nano silicon dioxide.
Further, in the step A, the average particle diameter of the nano silicon dioxide is 500nm.
Further, in the step a, the acid binding agent is any one of triethylamine or pyridine.
According to the technical scheme, hydroxyl on the surface of the nano silicon dioxide reacts with phosphoryl chloride in a diallyl chlorophosphate structure, alkenyl and phosphorus elements are introduced to the surface of the nano silicon dioxide to obtain a modified nano silicon dioxide intermediate, wherein the alkenyl in the structure can undergo Michael addition reaction with amino in a 1- (3-aminopropyl) imidazole structure, so that flame retardant element nitrogen is introduced to the surface of the nano silicon dioxide to prepare the modified nano silicon dioxide.
The invention has the beneficial effects that:
(1) According to the invention, the nitrogen-silicon heterocycle modified polyethylene glycol is prepared as a soft segment of polyurethane, and is involved in the synthesis process of polyurethane, and the nitrogen-silicon heterocycle is introduced into the polyurethane structure, so that the nitrogen-silicon heterocycle has a stable rigid structure, on one hand, the mechanical property of the polyurethane can be improved, and the compression set of the polyurethane foam damping material can be effectively reduced, so that the seat is not easy to deform under long-term pressure, and the comfort of the seat is still maintained; on the other hand, the introduction of the rigid structure can also improve the heat resistance of the polyurethane foam shock-absorbing material. In addition, the nitrogen-silicon heterocycle contains flame retardant elements nitrogen and silicon, so that the flame retardant property of the polyurethane foam damping material is improved.
(2) According to the invention, the organic nitrogen-phosphorus flame retardant is modified on the surface of the nano silicon dioxide, so that the compatibility of the nano silicon dioxide and polyurethane can be improved, the agglomeration problem of the nano silicon dioxide can be effectively improved, the nitrogen-phosphorus flame retardant grafted on the surface of the nano silicon dioxide can generate non-combustible gases such as nitrogen, ammonia and the like when the polyurethane foam damping material burns, and phosphoric acid derivatives which can promote the rapid dehydration of the polyurethane foam damping material can be generated, so that an expanded carbon layer is formed. In addition, silicon element in nitrogen silicon heterocycle in polyurethane molecular chain can deposit in the charcoal layer after burning, with the charcoal layer complex, improve the intensity and the density on charcoal layer, effectively separate oxygen and heat, produce synergistic flame retardant efficiency, prevent burning further to the fire behaviour of polyurethane foam damping material has been strengthened, and nano silicon dioxide evenly dispersed in polyurethane foam damping material, not only can disperse and transfer stress, improve polyurethane foam damping material's mechanical properties, can also cooperate with the fire retardant, further improve polyurethane foam damping material's fire behaviour, thereby ensured new energy automobile's safety in utilization.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of 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 invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an infrared spectrum of polyethylene glycol diglycidyl ether and azasilacycle-modified polyethylene glycol of example 1 of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
1. Preparation of nitrogen silicon heterocycle modified polyethylene glycol
5g of polyethylene glycol diglycidyl ether with molecular weight of 560 and 100mL of N, N-dimethylformamide are mixed and stirred uniformly, then 4.2g of hetero-silicon tricyclic ethylene glycol and 0.5g of tetrabutylammonium bromide are added, nitrogen protection is introduced, the temperature of the system is increased to 60 ℃, the reaction is carried out for 12 hours, and after the reaction is finished, the solvent is removed by reduced pressure distillation, so as to obtain the nitrogen silicon heterocycle modified polyethylene glycol;
the polyethylene glycol diglycidyl ether and the azasilacycle modified polyethylene glycol are subjected to 4000-500 cm by using a German Bruker company Tensor-27 type Fourier transform infrared spectrometer -1 As a result of scanning, as shown in FIG. 1, it is apparent from FIG. 1 that the nitrogen silicon heterocycle-modified polyethylene glycol is 3300-3500 cm in comparison with polyethylene glycol diglycidyl ether -1 The absorption peak of hydroxyl and N-H appears at 2800-3000 cm -1 The absorption peak area at the position is larger and is 1100-1200 cm -1 The Si-O-C telescopic vibration absorption peak appears, because the epoxy group in the polyethylene glycol diglycidyl ether and the hydroxyl group in the hetero-silatrane glycol are subjected to addition reaction, and the nitrogen silicon heterocycle rigid structure is introduced into the polyethylene glycol diglycidyl ether structure, and the active hydroxyl group is introduced by ring opening reaction.
2. Preparation of modified nanosilicon dioxide
A: adding 2g of nano silicon dioxide with the average particle size of 500nm into 60mL of toluene, uniformly mixing, heating to 50 ℃, adding 6g of diallyl chlorophosphate and 2g of triethylamine, reacting for 2 hours, centrifuging to separate a solid product after the reaction is finished, washing, and drying to obtain a modified nano silicon dioxide intermediate;
wherein diallyl chlorophosphate has a CAS number of: 16383-57-6;
adding 0.2g of modified nano silicon dioxide intermediate into 10mL of dichloromethane, performing ultrasonic dispersion to obtain uniform dispersion liquid, adding 25mL of Welch solution into the dispersion liquid, sufficiently shaking uniformly, standing in the dark for 1h, and adding 20mL of KI solution with mass fraction of 15% and the solution100mL of distilled water was rapidly treated with Na at a concentration of 0.1mol/L 2 S 2 O 3 Titrating the standard solution until the color of the solution is removed, adding 1mL of starch indicator with the mass fraction of 1%, continuously titrating until the blue color completely disappears, simultaneously performing a blank experiment, and obtaining the color of the standard solution by using a formula
Calculating the alkenyl content in the modified nano silicon dioxide intermediate sample, wherein X (mmol/g) is alkenyl content, and C (mol/L) is Na 2 S 2 O 3 Concentration of standard solution, V 0 (mL) Na consumed for titration blank 2 S 2 O 3 Volume of standard solution, V 1 (mL) Na consumed for titration of the modified nanosilica intermediate sample 2 S 2 O 3 The volume of the standard solution, m (g) is the mass of the modified nano silicon dioxide intermediate sample, and X is 1.534mmol/g through test;
b: dispersing 2g of modified nano silicon dioxide intermediate into 50mL of tetrahydrofuran, uniformly stirring, adding 5g of 1- (3-aminopropyl) imidazole, stirring and reacting for 6 hours at 25 ℃, carrying out suction filtration after the reaction, washing and vacuum drying to obtain the modified nano silicon dioxide, testing the alkenyl content in the modified nano silicon dioxide by adopting the same method as the step A, and supposing that the alkenyl content in the modified nano silicon dioxide intermediate structure and the amino in the 1- (3-aminopropyl) imidazole structure are subjected to addition reaction to reduce the alkenyl content through testing the alkenyl content in the modified nano silicon dioxide of 0.312 mmol/g.
3. Preparation of new energy automobile interior damping material
Step one: mixing 60 parts of nitrogen-silicon heterocycle modified polyethylene glycol, 20 parts of diphenylmethane diisocyanate and 1 part of dibutyltin dilaurate, uniformly stirring, raising the temperature to 70 ℃, and stirring for reacting for 1h to obtain a modified polyurethane prepolymer;
step two: adding 4 parts of dimethylolpropionic acid into the modified polyurethane prepolymer, continuously reacting for 4 hours, reducing the temperature to 35 ℃, adding 8 parts of triethylamine for neutralization for 5 minutes, adding 20 parts of deionized water, and stirring and emulsifying for 30 minutes to obtain modified polyurethane emulsion;
step three: adding 0.2 part of antioxidant 1010, 2 parts of stearic acid and 5 parts of modified nano silicon dioxide into the modified polyurethane emulsion, uniformly stirring, stirring for 5min at the rotating speed of 1000r/min, adding 2 parts of cyclopentane, uniformly mixing, pouring into a mould, foaming at room temperature, curing and forming for 12h, and removing the mould to obtain the new energy automobile interior damping material.
Example 2
Preparation of new energy automobile interior damping material
Step one: mixing 70 parts of azasilacycle modified polyethylene glycol, 25 parts of diphenylmethane diisocyanate and 1.5 parts of dibutyltin dilaurate, uniformly stirring, raising the temperature to 75 ℃, and stirring for 2 hours to obtain a modified polyurethane prepolymer;
step two: adding 5 parts of dimethylolpropionic acid into the modified polyurethane prepolymer, continuing to react for 5 hours, reducing the temperature to 36 ℃, adding 9 parts of triethylamine to neutralize for 8 minutes, adding 25 parts of deionized water, and stirring and emulsifying for 35 minutes to obtain modified polyurethane emulsion;
step three: adding 0.5 part of antioxidant 1010, 2.5 parts of stearic acid and 5.5 parts of modified nano silicon dioxide into the modified polyurethane emulsion, uniformly stirring, stirring for 8min at the rotation speed of 1200r/min, adding 2.5 parts of cyclopentane, uniformly mixing, pouring into a mould, foaming at room temperature, curing and forming for 18h, and removing the mould to obtain the new energy automobile interior damping material.
The preparation method of the nitrogen silicon heterocycle modified polyethylene glycol and the modified nano silicon dioxide is the same as that of the example 1.
Example 3
Preparation of new energy automobile interior damping material
Step one: mixing 80 parts of nitrogen-silicon heterocycle modified polyethylene glycol, 30 parts of diphenylmethane diisocyanate and 2 parts of dibutyltin dilaurate, uniformly stirring, raising the temperature to 80 ℃, and stirring for reaction for 3 hours to obtain a modified polyurethane prepolymer;
step two: adding 6 parts of dimethylolpropionic acid into the modified polyurethane prepolymer, continuously reacting for 6 hours, reducing the temperature to 40 ℃, adding 10 parts of triethylamine to neutralize for 10 minutes, adding 30 parts of deionized water, and stirring and emulsifying for 40 minutes to obtain modified polyurethane emulsion;
step three: adding 1 part of antioxidant 1010, 3 parts of stearic acid and 6 parts of modified nano silicon dioxide into the modified polyurethane emulsion, uniformly stirring, stirring for 10min at a rotating speed of 1500r/min, adding 3 parts of cyclopentane, uniformly mixing, pouring into a mold, foaming at room temperature, curing and molding for 24h, and removing the mold to obtain the new energy automobile interior damping material.
The preparation method of the nitrogen silicon heterocycle modified polyethylene glycol and the modified nano silicon dioxide is the same as that of the example 1.
Comparative example 1
Preparation of new energy automobile interior damping material
Step one: mixing 80 parts of polyoxypropylene glycol with the molecular weight of 1000, 30 parts of diphenylmethane diisocyanate and 2 parts of dibutyltin dilaurate, uniformly stirring, raising the temperature to 80 ℃, and stirring for reaction for 3 hours to obtain a polyurethane prepolymer;
step two: adding 6 parts of dimethylolpropionic acid into the polyurethane prepolymer, continuing to react for 6 hours, reducing the temperature to 40 ℃, adding 10 parts of triethylamine to neutralize for 10 minutes, adding 30 parts of deionized water, and stirring and emulsifying for 40 minutes to obtain polyurethane emulsion;
step three: adding 1 part of antioxidant 1010, 3 parts of stearic acid and 6 parts of modified nano silicon dioxide into polyurethane emulsion, uniformly stirring, stirring for 10min at a rotating speed of 1500r/min, adding 3 parts of cyclopentane, uniformly mixing, pouring into a mold, foaming at room temperature, curing and molding for 24h, and removing the mold to obtain the new energy automobile interior damping material.
Wherein the preparation method of the modified nano-silica is the same as in example 1.
Comparative example 2
Preparation of new energy automobile interior damping material
Step one: mixing 80 parts of nitrogen-silicon heterocycle modified polyethylene glycol, 30 parts of diphenylmethane diisocyanate and 2 parts of dibutyltin dilaurate, uniformly stirring, raising the temperature to 80 ℃, and stirring for reaction for 3 hours to obtain a modified polyurethane prepolymer;
step two: adding 6 parts of dimethylolpropionic acid into the modified polyurethane prepolymer, continuously reacting for 6 hours, reducing the temperature to 40 ℃, adding 10 parts of triethylamine to neutralize for 10 minutes, adding 30 parts of deionized water, and stirring and emulsifying for 40 minutes to obtain modified polyurethane emulsion;
step three: adding 1 part of antioxidant 1010 and 3 parts of stearic acid into the modified polyurethane emulsion, uniformly stirring, stirring for 10min at a rotating speed of 1500r/min, adding 3 parts of cyclopentane, uniformly mixing, pouring into a mold, foaming at room temperature, curing and molding for 24h, and removing the mold to obtain the new energy automobile interior damping material.
Wherein the preparation method of the nitrogen silicon heterocycle modified polyethylene glycol is the same as that of the example 1.
Comparative example 3
Preparation of new energy automobile interior damping material
Step one: mixing 80 parts of nitrogen-silicon heterocycle modified polyethylene glycol, 30 parts of diphenylmethane diisocyanate and 2 parts of dibutyltin dilaurate, uniformly stirring, raising the temperature to 80 ℃, and stirring for reaction for 3 hours to obtain a modified polyurethane prepolymer;
step two: adding 6 parts of dimethylolpropionic acid into the modified polyurethane prepolymer, continuously reacting for 6 hours, reducing the temperature to 40 ℃, adding 10 parts of triethylamine to neutralize for 10 minutes, adding 30 parts of deionized water, and stirring and emulsifying for 40 minutes to obtain modified polyurethane emulsion;
step three: adding 1 part of antioxidant 1010, 3 parts of stearic acid and 6 parts of nano silicon dioxide into the modified polyurethane emulsion, uniformly stirring, stirring for 10min at a rotating speed of 1500r/min, adding 3 parts of cyclopentane, uniformly mixing, pouring into a mold, foaming at room temperature, curing and molding for 24h, and removing the mold to obtain the new energy automobile interior damping material.
Wherein the preparation method of the nitrogen silicon heterocycle modified polyethylene glycol is the same as that of the example 1.
Comparative example 4
Preparation of new energy automobile interior damping material
Step one: mixing 80 parts of polyoxypropylene glycol with the molecular weight of 1000, 30 parts of diphenylmethane diisocyanate and 2 parts of dibutyltin dilaurate, uniformly stirring, raising the temperature to 80 ℃, and stirring for reaction for 3 hours to obtain a polyurethane prepolymer;
step two: adding 6 parts of dimethylolpropionic acid into the polyurethane prepolymer, continuing to react for 6 hours, reducing the temperature to 40 ℃, adding 10 parts of triethylamine to neutralize for 10 minutes, adding 30 parts of deionized water, and stirring and emulsifying for 40 minutes to obtain polyurethane emulsion;
step three: adding 1 part of antioxidant 1010 and 3 parts of stearic acid into polyurethane emulsion, uniformly stirring, stirring for 10min at a rotating speed of 1500r/min, adding 3 parts of cyclopentane, uniformly mixing, pouring into a mould, foaming at room temperature, curing and forming for 24h, and removing the mould to obtain the new energy automobile interior damping material.
Performance detection
a. The vibration damping materials prepared in examples 1 to 3 and comparative examples 1 to 4 of the present invention were cut into test samples conforming to the specifications, and referring to the national standard GB/T528-2009,
testing the tensile strength of the test specimen; testing the tearing strength of a sample by referring to national standard GB/T529-2008; with reference to national standard GB/T7759.1-2015, the compression set of the test sample is tested, and the test results are shown in the following table:
as can be seen from the above table, the shock absorbing materials prepared in examples 1 to 3 and comparative example 3 of the present invention show good tensile strength, tear strength and permanent deformation resistance, because the mechanical properties of the shock absorbing materials prepared by introducing the nitrogen-silicon heterocycle rigid structure and the nano silicon dioxide are significantly improved, whereas the shock absorbing materials prepared in comparative example 1 do not introduce the nitrogen-silicon heterocycle rigid structure, the shock absorbing materials prepared in comparative example 2 do not incorporate the modified nano silicon dioxide, so that the tensile strength, tear strength and permanent deformation resistance are general, and the shock absorbing materials prepared in comparative example 4 show poor tensile strength, tear strength and permanent deformation resistance because the nitrogen-silicon heterocycle is not introduced, nor the nano silicon dioxide is added.
b. The vibration damper prepared in examples 1 to 3 and comparative examples 1 to 4 was cut into test pieces having a specification of 50mm×50mm×10mm, the test pieces were placed on a quartz plate, placed in an oven, heated to 150 ℃, starting to time, observing the dimensional change of the test pieces, recording the time required for the thickness of the test pieces to decrease by 2mm, and evaluating the heat resistance of the vibration damper, and the test results are shown in the following table:
as is clear from the above table, the shock-absorbing materials prepared in examples 1 to 3 of the present invention all have good heat resistance, whereas the shock-absorbing materials prepared in comparative examples 2 and 3 have general heat resistance, and the shock-absorbing materials prepared in comparative examples 1 and 4 have poor heat resistance because no nitrogen-silicon heterocycle rigid structure is introduced.
c. The cushioning materials prepared in examples 1 to 3 and comparative examples 1 to 4 of the present invention were cut into test pieces having a specification of 100mm×10mm×5mm, and the test pieces were tested for limiting oxygen index with reference to national standard GB/T2406.2-2009, and the test results are shown in the following table:
as is clear from the above table, the shock-absorbing materials prepared in examples 1 to 3 of the present invention have high limiting oxygen index and have good flame retardant properties, whereas the shock-absorbing material prepared in comparative example 1 has no nitrogen-silicon heterocycle, although the flame retardant is added, so that the shock-absorbing materials prepared in comparative example 2 and comparative example 3 have general flame retardant properties, the shock-absorbing materials prepared in comparative example 2 and comparative example 3 have poor flame retardant properties, and the shock-absorbing materials prepared in comparative example 4 have poor flame retardant properties, because the nitrogen-silicon heterocycle and the flame retardant are not added.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (7)
1. The production process of the new energy automobile interior damping material is characterized by comprising the following raw materials in parts by weight: 60-80 parts of nitrogen-silicon heterocycle modified polyethylene glycol, 20-30 parts of diphenylmethane diisocyanate, 1-2 parts of dibutyltin dilaurate, 4-6 parts of dimethylolpropionic acid, 8-10 parts of triethylamine, 20-30 parts of deionized water, 0.2-1 part of an antioxidant, 2-3 parts of a lubricant, 5-6 parts of modified nano silicon dioxide and 2-3 parts of a foaming agent; the nitrogen silicon heterocycle modified polyethylene glycol is prepared by introducing nitrogen silicon heterocycle into a polyethylene glycol diglycidyl ether structure; the modified nano silicon dioxide is prepared by modifying a nitrogen-phosphorus flame retardant on the surface of the nano silicon dioxide;
the production process comprises the following steps:
step one: mixing the nitrogen silicon heterocycle modified polyethylene glycol, the diphenylmethane diisocyanate and the dibutyl tin dilaurate, uniformly stirring, raising the temperature to 70-80 ℃, and stirring for reacting for 1-3 hours to obtain a modified polyurethane prepolymer;
step two: adding dimethylolpropionic acid into the modified polyurethane prepolymer, continuing to react for 4-6 hours, reducing the temperature to 35-40 ℃, adding triethylamine to neutralize for 5-10 minutes, adding deionized water, and stirring and emulsifying for 30-40 minutes to obtain modified polyurethane emulsion;
step three: adding an antioxidant, a lubricant and modified nano silicon dioxide into the modified polyurethane emulsion, uniformly stirring, stirring for 5-10min at a rotating speed of 1000-1500r/min, adding a foaming agent, uniformly mixing, pouring into a mould, foaming at room temperature, curing and forming for 12-24h, and removing the mould to obtain the new energy automobile interior damping material;
the production process of the nitrogen-silicon heterocycle modified polyethylene glycol comprises the following steps:
mixing polyethylene glycol diglycidyl ether with N, N-dimethylformamide, stirring uniformly, adding hetero-silicon tri-cyclic ethylene glycol and a catalyst, introducing nitrogen for protection, raising the temperature of the system to 60-70 ℃, reacting for 12-18h, and distilling under reduced pressure to remove the solvent after the reaction is finished to obtain nitrogen silicon heterocyclic modified polyethylene glycol;
the production process of the modified nano silicon dioxide comprises the following steps:
a: adding nano silicon dioxide into toluene, uniformly mixing, heating to 50-60 ℃, adding diallyl chlorophosphate and an acid-binding agent, reacting for 2-3 hours, centrifuging to separate a solid product after the reaction is finished, washing, and drying to obtain a modified nano silicon dioxide intermediate;
b: dispersing the modified nano silicon dioxide intermediate into tetrahydrofuran, stirring uniformly, adding 1- (3-aminopropyl) imidazole, stirring at 25-30 ℃ for reaction for 6-8h, filtering after reaction, washing, and drying in vacuum to obtain the modified nano silicon dioxide.
2. The process for producing the new energy automobile interior damping material according to claim 1, wherein the molecular weight of the polyethylene glycol diglycidyl ether is 560.
3. The process for producing the new energy automobile interior damping material according to claim 1, wherein the catalyst is any one of tetrabutylammonium bromide and boron trifluoride diethyl etherate.
4. The process for producing the new energy automobile interior damping material according to claim 1, wherein the antioxidant is any one of antioxidant 1010, antioxidant 168, antioxidant 264 or antioxidant 1076.
5. The process for producing the new energy automobile interior damping material according to claim 1, wherein the lubricant is any one of stearic acid, polyethylene wax, sodium stearate, aluminum stearate or zinc stearate; the foaming agent is any one of n-pentane, cyclopentane, pentafluoropropane or dichlorofluoroethane.
6. The process for producing the new energy automobile interior damping material according to claim 1, wherein in the step A, the average particle size of the nano silicon dioxide is 500nm.
7. The process for producing the new energy automobile interior damping material according to claim 1, wherein in the step A, the acid binding agent is any one of triethylamine or pyridine.
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