CN111892773A - Double-component sound-absorbing cotton with flame retardant property and preparation method and application thereof - Google Patents
Double-component sound-absorbing cotton with flame retardant property and preparation method and application thereof Download PDFInfo
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- CN111892773A CN111892773A CN202010743207.3A CN202010743207A CN111892773A CN 111892773 A CN111892773 A CN 111892773A CN 202010743207 A CN202010743207 A CN 202010743207A CN 111892773 A CN111892773 A CN 111892773A
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- flame
- retardant
- absorbing cotton
- vinyl acetate
- acetate copolymer
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000003063 flame retardant Substances 0.000 title claims abstract description 111
- 229920000742 Cotton Polymers 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 55
- 239000004743 Polypropylene Substances 0.000 claims abstract description 40
- 229920001155 polypropylene Polymers 0.000 claims abstract description 40
- -1 polypropylene Polymers 0.000 claims abstract description 39
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 36
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 20
- 150000002148 esters Chemical class 0.000 claims description 12
- 229960004337 hydroquinone Drugs 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 8
- 238000010035 extrusion spinning Methods 0.000 claims description 8
- 238000009987 spinning Methods 0.000 claims description 8
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 4
- LLOXZCFOAUCDAE-UHFFFAOYSA-N 2-diphenylphosphorylbenzene-1,4-diol Chemical compound OC1=CC=C(O)C(P(=O)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 LLOXZCFOAUCDAE-UHFFFAOYSA-N 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- GNBKMIYTXGHJNW-UHFFFAOYSA-N OP(OOC1=CC=CC=C1)=O Chemical compound OP(OOC1=CC=CC=C1)=O GNBKMIYTXGHJNW-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000000376 reactant Substances 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- TXFOLHZMICYNRM-UHFFFAOYSA-N dichlorophosphoryloxybenzene Chemical compound ClP(Cl)(=O)OC1=CC=CC=C1 TXFOLHZMICYNRM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 230000009194 climbing Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims description 2
- CMPQUABWPXYYSH-UHFFFAOYSA-N phenyl phosphate Chemical compound OP(O)(=O)OC1=CC=CC=C1 CMPQUABWPXYYSH-UHFFFAOYSA-N 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005034 decoration Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000011358 absorbing material Substances 0.000 abstract description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 4
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/12—Applications used for fibers
-
- 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
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Artificial Filaments (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a flame-retardant two-component sound-absorbing cotton and a preparation method and application thereof, and belongs to the technical field of sound-absorbing materials. The flame-retardant two-component sound-absorbing cotton is prepared from the following raw materials in percentage by mass: 20-50% of flame-retardant ethylene-vinyl acetate copolymer fiber and 50-80% of flame-retardant polypropylene fiber. The invention also discloses a preparation method and application of the double-component sound-absorbing cotton with the flame retardant property. The sound-absorbing cotton has the advantages of low heat conductivity coefficient, low odor, environmental protection and the like by improving the flame retardant property of the sound-absorbing cotton double components, can absorb high-frequency sound waves and medium-low frequency sound waves, has excellent flame retardant property, and can be used in the field of interior decoration of passenger cars.
Description
Technical Field
The invention relates to a flame-retardant two-component sound-absorbing cotton, a preparation method and application thereof, and belongs to the technical field of sound-absorbing materials.
Background
In the automobile interior material, the sound-absorbing material accounts for 20-30%. Automobiles, as a special vehicle, have nearly stringent requirements for sound insulation because of their safety and health concerns. Polyester fiber (PET) and polypropylene (PP) double-component sound-absorbing cotton is widely applied to the fields of automobile sound insulation and noise reduction, and the NVH performance of the whole automobile is greatly improved. However, PET fiber is a typical polyester fiber, and the high melting point degradation is difficult, resulting in serious white contamination. In order to improve the environmental friendliness of the sound-absorbing cotton, there is also a report on using a biodegradable ethylene-vinyl acetate copolymer (EVA) instead of PET, which improves the environmental friendliness of the sound-absorbing material. However, in the running process of the automobile, due to reasons such as electrical short circuit, engine failure, traffic accidents and the like, fire disasters are easily caused, and property loss and casualties are caused. The oxygen index of JT/T1095-2016 flame retardant property of interior materials of commercial passenger cars to interior materials is improved to over 26, and the maximum oxygen index of PP fibers and EVA fibers is only 22 at present. Therefore, it is necessary to improve the flame retardancy of the conventional sound-absorbing cotton for passenger cars.
In view of the above, there is a need to research a novel flame retardant two-component sound-absorbing cotton capable of being used in the interior decoration field of a passenger car and a preparation method thereof, so as to solve the defects of the prior art.
Disclosure of Invention
The invention aims to provide a double-component sound absorption cotton with flame retardant property. The double-component sound-absorbing cotton with the flame retardant property has the advantages of low heat conductivity coefficient, low odor, environmental protection and the like, can absorb high-frequency sound waves and medium-low frequency sound waves, has excellent flame retardant property (the oxygen index is more than 26), and can be used in the field of interior decoration of passenger cars.
The technical scheme for solving the technical problems is as follows: the flame-retardant double-component sound-absorbing cotton is prepared from the following raw materials in percentage by mass: 50-80% of flame-retardant polypropylene fiber and 20-50% of flame-retardant ethylene-vinyl acetate copolymer fiber.
The flame-retardant two-component sound-absorbing cotton has the beneficial effects that:
the double-component sound-absorbing cotton with the flame retardant property has the advantages of low heat conductivity coefficient, low odor, environmental protection and the like, can absorb high-frequency sound waves and medium-low frequency sound waves, has excellent flame retardant property (the oxygen index is more than 26), and can be used in the field of interior decoration of passenger cars.
The second purpose of the invention is to provide a preparation method of the double-component sound-absorbing cotton with excellent flame retardant property. The preparation method is simple, easy to operate, low in cost, wide in market prospect and wide in application prospect.
The technical scheme for solving the technical problems is as follows: a preparation method of double-component sound-absorbing cotton with flame retardant property comprises the following steps:
1) preparation of flame-retardant Polypropylene fiber
Adding poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester which accounts for 2% -8% of the mass of the polypropylene particles into the polypropylene particles, and performing melt extrusion spinning on the polypropylene particles at 200-220 ℃ on a double-screw composite spinning machine to prepare the flame-retardant polypropylene fiber, wherein the diameter of the flame-retardant polypropylene fiber is 10-20 mu m, and the length of the flame-retardant polypropylene fiber is 1-3 mm;
2) preparation of flame-retardant ethylene-vinyl acetate copolymer fiber
Adding poly (phenoxy) phosphonate poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester accounting for 2% -8% of the mass of the ethylene-vinyl acetate copolymer particles into the ethylene-vinyl acetate copolymer particles, and performing melt extrusion spinning at 130-150 ℃ on a double-screw composite spinning machine to prepare the flame-retardant ethylene-vinyl acetate copolymer fiber, wherein the diameter of the flame-retardant ethylene-vinyl acetate copolymer fiber is 10-20 mu m, and the length of the flame-retardant ethylene-vinyl acetate copolymer fiber is 1-3 mm;
3) hybrid molding
Respectively weighing 50-80% of the flame-retardant polypropylene fiber prepared in the step 1) and 20-50% of the flame-retardant ethylene-vinyl acetate copolymer fiber prepared in the step 2) according to the mass percentage, and blending into a coil to obtain the flame-retardant double-component sound-absorbing cotton.
The preparation method of the bicomponent sound-absorbing cotton with excellent flame retardant property has the beneficial effects that:
the preparation method of the flame-retardant two-component sound-absorbing cotton is simple, easy to operate, low in cost and wide in application prospect.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the preparation method of the poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester flame retardant comprises the following steps:
1) firstly, respectively taking 1 weight part of phenyl dichlorophosphate and 2- (diphenylphosphinoyl) -1, 4-benzenediol, adding 0.02 weight part of anhydrous calcium chloride as a catalyst, controlling the temperature at 160 ℃ under the protection of nitrogen, and heating and stirring until reactants are completely liquid;
2) then reacting for 2-3h until the reactant is thickened and a pole climbing phenomenon appears, heating to 240 ℃, continuing to react for 1-2h, vacuumizing for 30min to remove residual HCl gas in the system, cooling to room temperature to obtain a crude flame retardant product, dissolving the crude flame retardant product by using 1, 2-dichloroethane, and removing anhydrous calcium chloride;
3) finally, petroleum ether is added, and the flame retardant is precipitated from the 1, 2-dichloroethane, thus obtaining the poly (phenoxy) phosphonic acid (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester flame retardant.
The adoption of the further beneficial effects is as follows: poly phenoxy phosphonic acid (2- (diphenylphosphinoyl) -1, 4-benzenediol) ester, PDPMP for short, is prepared by reacting phenyl dichlorophosphate (MPCP) and 2- (diphenylphosphinoyl) -1, 4-benzenediol (DPO-HQ). The flame retardant has excellent flame retardant property.
Further, the oxygen index of the double-component sound absorption cotton with the flame retardant property is greater than 26.
The third purpose of the invention is to provide the application of the double-component sound-absorbing cotton with flame retardant property. The flame-retardant two-component sound-absorbing cotton can be used in the field of interior decoration of passenger cars and has a wide application prospect.
The technical scheme for solving the technical problems is as follows: the double-component sound-absorbing cotton with the flame retardant property is applied to the field of interior decoration of passenger cars.
The application of the double-component sound-absorbing cotton with the flame retardant property has the beneficial effects that:
the flame-retardant two-component sound-absorbing cotton can be used in the field of interior decoration of passenger cars and has a wide application prospect.
Detailed Description
The principles and features of this invention are described below in conjunction with specific embodiments, which are set forth merely to illustrate the invention and are not intended to limit the scope of the invention.
Example 1:
the flame-retardant two-component sound-absorbing cotton is prepared from the following raw materials in percentage by mass: 60 percent of flame-retardant polypropylene fiber and 40 percent of flame-retardant ethylene-vinyl acetate copolymer fiber.
The preparation method of the double-component sound-absorbing cotton with the flame retardant property comprises the following steps:
1) preparation of flame-retardant Polypropylene fiber
Adding poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester accounting for 4% of the mass of the polypropylene particles into the polypropylene particles, and performing melt extrusion spinning on the polypropylene particles at 205 ℃ on a double-screw composite spinning machine to prepare a flame-retardant polypropylene fiber, wherein the diameter of the flame-retardant polypropylene fiber is 10 microns, and the length of the flame-retardant polypropylene fiber is 1-3 mm;
2) preparation of flame-retardant ethylene-vinyl acetate copolymer fiber
Adding poly (phenoxy) phosphonate poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester accounting for 4% of the mass of the ethylene-vinyl acetate copolymer particles into the ethylene-vinyl acetate copolymer particles, and performing melt extrusion spinning at 140 ℃ on a double-screw composite spinning machine to prepare the flame-retardant ethylene-vinyl acetate copolymer fiber, wherein the diameter of the flame-retardant ethylene-vinyl acetate copolymer fiber is 15 microns, and the length of the flame-retardant ethylene-vinyl acetate copolymer fiber is 1-3 mm;
3) hybrid molding
Respectively weighing 60% of the flame-retardant polypropylene fiber prepared in the step 1) and 40% of the flame-retardant ethylene-vinyl acetate copolymer fiber prepared in the step 2) according to the mass percentage, and blending into a roll to obtain the flame-retardant double-component sound-absorbing cotton.
The flame-retardant double-component sound-absorbing cotton is prepared to be 5mm thick, and the test performance is as follows: (1) the sound absorption rate is 400Hz and is more than or equal to 0.20; 630Hz of more than or equal to 0.40; 1000Hz, which is more than or equal to 0.60; 2000Hz, which is not less than 0.80; 4000Hz of not less than 0.95. The sound absorption performance of low frequency and high frequency is excellent; (2) the heat conductivity coefficient is less than or equal to 0.035W/(m ∙ K); (3) VOCS/SVOC value (ug/g): benzene is less than or equal to 1; toluene is less than or equal to 8; ethylbenzene is less than or equal to 8; xylene is less than or equal to 8; styrene is less than or equal to 8; aldo-keto substances (ug/g): formaldehyde is less than or equal to 5; acetaldehyde is less than or equal to 0.5; acrolein is less than or equal to 0.5; (4) the dry and wet odor grade N is more than or equal to grade 6.
The oxygen index of the double-component sound-absorbing cotton with the flame retardant property reaches 27, the flame retardant property is excellent, and the oxygen index of the sound-absorbing cotton which is not added with the flame retardant and has the same proportion is only 22.
Example 2:
the flame-retardant two-component sound-absorbing cotton is prepared from the following raw materials in percentage by mass: 20 percent of flame-retardant polypropylene fiber and 80 percent of flame-retardant ethylene-vinyl acetate copolymer fiber.
The preparation method of the double-component sound-absorbing cotton with the flame retardant property comprises the following steps:
1) preparation of flame-retardant Polypropylene fiber
Adding poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester which accounts for 7% of the mass of the polypropylene particles into the polypropylene particles, and performing melt extrusion spinning on the polypropylene particles at the temperature of 210 ℃ on a double-screw composite spinning machine to prepare a flame-retardant polypropylene fiber, wherein the diameter of the flame-retardant polypropylene fiber is 20 mu m, and the length of the flame-retardant polypropylene fiber is 1-3 mm;
2) preparation of flame-retardant ethylene-vinyl acetate copolymer fiber
Adding poly (phenoxy) phosphonate poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester accounting for 7% of the mass of the ethylene-vinyl acetate copolymer particles into the ethylene-vinyl acetate copolymer particles, and performing melt extrusion spinning at 150 ℃ on a double-screw composite spinning machine to prepare the flame-retardant ethylene-vinyl acetate copolymer fiber, wherein the diameter of the flame-retardant ethylene-vinyl acetate copolymer fiber is 20 microns, and the length of the flame-retardant ethylene-vinyl acetate copolymer fiber is 1-3 mm;
3) hybrid molding
Respectively weighing 20% of the flame-retardant polypropylene fiber prepared in the step 1) and 80% of the flame-retardant ethylene-vinyl acetate copolymer fiber prepared in the step 2) according to the mass percentage, and blending into a roll to obtain the flame-retardant double-component sound-absorbing cotton.
The flame-retardant double-component sound-absorbing cotton is prepared to be 5mm thick, and the test performance is as follows: (1) the sound absorption rate is 400Hz and is more than or equal to 0.20; 630Hz of more than or equal to 0.40; 1000Hz, which is more than or equal to 0.60; 2000Hz, which is not less than 0.80; 4000Hz of not less than 0.95. The sound absorption performance of low frequency and high frequency is excellent; (2) the heat conductivity coefficient is less than or equal to 0.035W/(m ∙ K); (3) VOCS/SVOC value (ug/g): benzene is less than or equal to 1; toluene is less than or equal to 8; ethylbenzene is less than or equal to 8; xylene is less than or equal to 8; styrene is less than or equal to 8; aldo-keto substances (ug/g): formaldehyde is less than or equal to 5; acetaldehyde is less than or equal to 0.5; acrolein is less than or equal to 0.5; (4) the dry and wet odor grade N is more than or equal to grade 6.
The oxygen index of the double-component sound-absorbing cotton with the flame retardant property reaches 31, the flame retardant property is more excellent, and the oxygen index of the sound-absorbing cotton which is not added with the flame retardant and has the same proportion is only 22.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The flame-retardant two-component sound-absorbing cotton is characterized by being prepared from the following raw materials in percentage by mass: 50-80% of flame-retardant polypropylene fiber and 20-50% of flame-retardant ethylene-vinyl acetate copolymer fiber.
2. A preparation method of double-component sound-absorbing cotton with flame retardant property is characterized by comprising the following steps:
1) preparation of flame-retardant Polypropylene fiber
Adding poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester which accounts for 2% -8% of the mass of the polypropylene particles into the polypropylene particles, and performing melt extrusion spinning on the polypropylene particles at 200-220 ℃ on a double-screw composite spinning machine to prepare the flame-retardant polypropylene fiber, wherein the diameter of the flame-retardant polypropylene fiber is 10-20 mu m, and the length of the flame-retardant polypropylene fiber is 1-3 mm;
2) preparation of flame-retardant ethylene-vinyl acetate copolymer fiber
Adding poly (phenoxy) phosphonate poly (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester accounting for 2% -8% of the mass of the ethylene-vinyl acetate copolymer particles into the ethylene-vinyl acetate copolymer particles, and performing melt extrusion spinning at 130-150 ℃ on a double-screw composite spinning machine to prepare the flame-retardant ethylene-vinyl acetate copolymer fiber, wherein the diameter of the flame-retardant ethylene-vinyl acetate copolymer fiber is 10-20 mu m, and the length of the flame-retardant ethylene-vinyl acetate copolymer fiber is 1-3 mm;
3) hybrid molding
Respectively weighing 50-80% of the flame-retardant polypropylene fiber prepared in the step 1) and 20-50% of the flame-retardant ethylene-vinyl acetate copolymer fiber prepared in the step 2) according to the mass percentage, and blending into a coil to obtain the flame-retardant double-component sound-absorbing cotton.
3. The method for preparing the two-component sound-absorbing cotton with flame retardant property according to claim 2, wherein the method for preparing the poly (2- (diphenylphosphinoyl) -1, 4-benzenediol) ester flame retardant comprises the following steps:
1) firstly, respectively taking 1 weight part of phenyl dichlorophosphate and 2- (diphenylphosphinoyl) -1, 4-benzenediol, adding 0.02 weight part of anhydrous calcium chloride as a catalyst, controlling the temperature at 160 ℃ under the protection of nitrogen, and heating and stirring until reactants are completely liquid;
2) then reacting for 2-3h until the reactant is thickened and a pole climbing phenomenon appears, heating to 240 ℃, continuing to react for 1-2h, vacuumizing for 30min to remove residual HCl gas in the system, cooling to room temperature to obtain a crude flame retardant product, dissolving the crude flame retardant product by using 1, 2-dichloroethane, and removing anhydrous calcium chloride;
3) finally, petroleum ether is added, and the flame retardant is precipitated from the 1, 2-dichloroethane, thus obtaining the poly (phenoxy) phosphonic acid (2- (diphenylphosphine acyl) -1, 4-benzenediol) ester flame retardant.
4. The method for preparing the two-component sound-absorbing cotton with flame retardant property according to claim 2, wherein the oxygen index of the two-component sound-absorbing cotton with flame retardant property is greater than 26.
5. The use of the two-component sound-absorbing cotton with flame retardant property of claim 1 in the field of interior trim of passenger cars.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1842698A (en) * | 2003-08-25 | 2006-10-04 | 高安株式会社 | Sound absorbing material |
| CN104379826A (en) * | 2012-06-12 | 2015-02-25 | 霓佳斯株式会社 | Soundproof cover for automobile and method for manufacturing soundproof cover for automobile |
| CN106637672A (en) * | 2016-12-23 | 2017-05-10 | 广西德福特科技有限公司 | Vehicle two-component sound absorbing material and preparation method for same |
-
2020
- 2020-07-29 CN CN202010743207.3A patent/CN111892773A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1842698A (en) * | 2003-08-25 | 2006-10-04 | 高安株式会社 | Sound absorbing material |
| CN104379826A (en) * | 2012-06-12 | 2015-02-25 | 霓佳斯株式会社 | Soundproof cover for automobile and method for manufacturing soundproof cover for automobile |
| CN106637672A (en) * | 2016-12-23 | 2017-05-10 | 广西德福特科技有限公司 | Vehicle two-component sound absorbing material and preparation method for same |
Non-Patent Citations (1)
| Title |
|---|
| 田秀娟 等: ""聚磷酸酯阻燃剂的合成及阻燃聚对苯二甲酸乙二醇酯的性能"", 《高分子材料科学与工程》 * |
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Application publication date: 20201106 |