CN108003483B - Flame-retardant flexible sound insulation material and preparation method and application thereof - Google Patents
Flame-retardant flexible sound insulation material and preparation method and application thereof Download PDFInfo
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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 44
- 239000003063 flame retardant Substances 0.000 title claims abstract description 42
- 239000012774 insulation material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
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- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 8
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- 238000001816 cooling Methods 0.000 claims description 6
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- 239000003242 anti bacterial agent Substances 0.000 claims description 5
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 229910021389 graphene Inorganic materials 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 239000005062 Polybutadiene Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052787 antimony Inorganic materials 0.000 claims description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920002857 polybutadiene Polymers 0.000 claims description 4
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- 239000004814 polyurethane Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 3
- OQHXZZGZASQSOB-UHFFFAOYSA-N 3,4,5,6-tetrachlorobenzene-1,2-dicarbonitrile Chemical compound ClC1=C(Cl)C(Cl)=C(C#N)C(C#N)=C1Cl OQHXZZGZASQSOB-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims description 2
- 239000012757 flame retardant agent Substances 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- STSDHUBQQWBRBH-UHFFFAOYSA-N n-cyclohexyl-1,3-benzothiazole-2-sulfonamide Chemical compound N=1C2=CC=CC=C2SC=1S(=O)(=O)NC1CCCCC1 STSDHUBQQWBRBH-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229920005668 polycarbonate resin Polymers 0.000 claims description 2
- 239000004431 polycarbonate resin Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 2
- 229960002447 thiram Drugs 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 abstract description 11
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000005303 weighing Methods 0.000 abstract description 4
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- 239000012467 final product Substances 0.000 abstract 1
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- 229910052751 metal Inorganic materials 0.000 description 6
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- 239000000779 smoke Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000003899 bactericide agent Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
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- 229910052736 halogen Inorganic materials 0.000 description 1
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- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene 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
- C08K3/02—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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- Polymers & Plastics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a flame-retardant flexible sound insulation material and a preparation method and application thereof, wherein the flame-retardant flexible sound insulation material comprises the following components in parts by weight: 25-40 parts of halogen-free rubber, 15-25 parts of halogen-free plastic, 2-10 parts of reinforcing fiber, 5-15 parts of heavy powder, 10-20 parts of plasticizer, 5-10 parts of flame retardant, 1-2 parts of stabilizer, 1-2 parts of accelerator, 1-2 parts of vulcanizing agent and 1-2 parts of coupling agent. The preparation method comprises the following steps: (1) weighing raw materials; (2) mixing before vulcanization; (3) carrying out vulcanization treatment; (4) cutting and trimming to obtain the final product. The flame-retardant flexible sound insulation material has the advantages of light weight, good sound insulation effect, high strength, good flame retardance and ageing resistance, foldability, rolling and the like, and can be widely used as a sound insulation member raw material or directly used as a sound insulation member.
Description
Technical Field
The invention belongs to the technical field of new sound insulation materials, and particularly relates to a flame-retardant flexible sound insulation material and a preparation method and application thereof.
Background
With the development of socio-economic and the increase of urban population density, noise pollution is receiving more and more attention from the public. Noise reduction facilities such as sound barriers and sound insulation covers are the most common and effective technical means in noise pollution control. However, in order to achieve sufficient sound insulation and reduce sound reflection, the conventional sound insulation barrier and the conventional sound insulation cover generally adopt a main structure of a metal plate, a sound absorption material and a metal perforated plate, so that the used sound insulation structure is thick and heavy, and the installation and the disassembly are very inconvenient. Particularly, when the enclosure is used for electric power equipment such as a power converter and a reactor, the enclosure often needs to be operated and maintained, and needs a lighter sound insulation material which is convenient to assemble and disassemble. Chinese patent CN201610387794.0 discloses a soft rubber-plastic foam material with high specific gravity for sound insulation and noise reduction, which has good sound insulation performance, but generates a large amount of black and irritating toxic gas when burning, and is limited to be used in areas with high fire protection requirements.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a foldable and foldable flame-retardant flexible sound insulation material with light weight, good sound insulation effect, high strength, low smoke, good flame retardance and ageing resistance, and also provides a preparation method and application of the flame-retardant flexible sound insulation material.
In order to solve the technical problems, the invention adopts the following technical scheme:
a flame-retardant flexible sound insulation material comprises the following components in parts by weight:
25 to 40 parts of halogen-free rubber,
15 to 25 parts of halogen-free plastic,
2-10 parts of a reinforcing fiber,
5-15 parts of heavy powder,
10-20 parts of a plasticizer,
5-10 parts of a flame retardant,
1-2 parts of a stabilizer,
1-2 parts of an accelerator, namely,
1 to 2 parts of a vulcanizing agent, and
1-2 parts of a coupling agent.
In the flame-retardant flexible sound insulation material, preferably, the reinforcing fibers are one or more of aluminum fibers, carbon fibers, polyester fibers and silicate fibers.
Preferably, the heavy powder is one or more of ultrafine graphene powder, ultrafine aluminum oxide powder and ultrafine iron powder; the particle size of the heavy powder is 100 nm-100 mu m.
The flame-retardant flexible sound insulation material preferably further comprises: 1-2 parts of a bactericide.
Preferably, the halogen-free rubber is one or more of silicone rubber, butadiene rubber and ethylene propylene diene monomer rubber; the halogen-free plastic is one or more of polycarbonate resin, polypropylene, polyethylene and polyurethane.
Preferably, the plasticizer is one of dibutyl phthalate, dioctyl phthalate and dioctyl adipate; the flame retardant is one or more of aluminum hydroxide, magnesium hydroxide and zinc borate; the stabilizer is one of calcium zinc powder, organic tin and organic antimony; the accelerator is one of dibenzothiazyl disulfide, N-cyclohexyl-2-benzothiazole sulfonamide and tetramethyl thiuram disulfide; the vulcanizing agent is one or more of sublimed sulfur, zinc oxide and magnesium oxide; the coupling agent is one of a chromium complex coupling agent, a silane coupling agent and a titanate coupling agent.
Preferably, the antibacterial agent is one of nano silver, silver-loaded phosphate and tetrachlorobenzene dinitrile.
As a general inventive concept, the present invention also provides a method for preparing the flame-retardant flexible sound insulation material, comprising the steps of:
(1) firstly, placing halogen-free rubber, halogen-free plastic, plasticizer and stabilizer in an open mill, mixing for 1-5 min at the temperature of 120-180 ℃ and the rotating speed of 10-30 r/min, then adding reinforcing fiber, heavy powder, flame retardant and coupling agent, keeping the temperature and the rotating speed unchanged, mixing for 2-10 min, and cooling to room temperature to obtain a premix;
(2) adding an accelerant and a vulcanizing agent into the premix obtained in the step (1), mixing for 2-10 min at the temperature of 30-90 ℃ and the rotating speed of 10-30 r/min, standing at room temperature for 12-36 h, continuing mixing for 2-10 min at the rotating speed of 10-30 r/min, finally placing in a flat plate vulcanizing machine for compression molding, wherein the molding temperature is 120-180 ℃, the pressure is 5-15 MPa, and the time is 10-30 min, and cooling at room temperature to obtain the flexible sound insulation material.
In the above method for preparing a flame-retardant flexible sound insulation material, preferably, in the step (2), an antibacterial agent is further added to the premix.
As a general inventive concept, the invention also provides an application of the flame-retardant flexible sound insulation material or the flame-retardant flexible sound insulation material prepared by the preparation method in forming a sound insulation member or serving as the sound insulation member.
The innovation of the invention is that:
the sound insulation quantity of the homogeneous material obeys the 'mass law', namely the density is about large and the sound insulation quantity is larger, but the low-smoke flame-retardant flexible sound insulation material can increase the density of the material by adding reinforcing fibers (such as aluminum fibers, carbon fibers, polyester fibers, silicate fibers and the like) and superfine powder (such as graphene, aluminum oxide, iron powder and the like) on the basis of halogen-free rubber and plastic mixed materials, and meanwhile, the reinforcing fibers and the superfine powder dispersed in the mixed materials can form sound reflection of multiple layers of different interfaces, so that the consumption of sound energy is increased, the sound insulation quantity of the material can be effectively improved, and the 'mass law' is broken through. Meanwhile, due to the addition of the fiber reinforcing agent, the compression resistance and the tensile resistance of the material are improved through a cross-linked network structure formed by the fibers. The material in the invention does not contain halogen, achieves self-extinguishing effect by adding non-toxic flame retardant, and does not generate toxic black smoke during combustion, thereby greatly improving the fire resistance.
Compared with the prior art, the invention has the advantages that:
1. the invention takes halogen-free rubber and plastic blend as a composite matrix, takes fiber reinforcing agent and modifier as auxiliary fillers, takes flame retardant, plasticizer, stabilizer, accelerator, vulcanizing agent, coupling agent and bactericide as main additives, the formed flexible sound insulation material has the advantages of light weight, good sound insulation performance, convenient folding and rolling, and the like, no toxic black smoke is generated after combustion, and the sound insulation component and the noise reduction facility formed by the flexible sound insulation material are easy to install and disassemble, are particularly suitable for the use environment needing quick installation and disassembly, and simultaneously have the advantages of flame retardance, good aging resistance, good compression resistance and tensile resistance, and the like. 2. The flame-retardant flexible sound insulation material disclosed by the invention is simple in preparation process and suitable for large-scale production.
Drawings
Fig. 1 is a physical diagram of a flame-retardant flexible sound insulation material prepared in example 1 of the present invention.
Detailed Description
The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.
Example 1:
the preparation method of the flame-retardant flexible sound insulation material comprises the following steps:
(1) weighing the following raw materials in parts by weight: 30 parts of ethylene propylene diene monomer, 20 parts of polypropylene, 5 parts of carbon fiber, 15 parts of superfine metal iron powder (2 mu m), 15 parts of dioctyl adipate, 5 parts of aluminum hydroxide, 2 parts of calcium zinc powder, 2 parts of dibenzothiazyl disulfide, 2 parts of sublimed sulfur, 2 parts of silane coupling agent (KH570) and 2 parts of nano-silver.
(2) Pretreatment in vulcanization: firstly, ethylene propylene diene monomer, polypropylene, dioctyl adipate and calcium zinc powder are put into an open mill (the temperature is 160 ℃, the speed is 20r/min) to be kneaded for 2min, then carbon fiber, superfine metal iron powder, aluminum hydroxide and silane coupling agent (KH570) are added, and the kneading is continued for 5 min.
(3) And (3) vulcanization treatment: after the mixed materials are cooled to room temperature, adding sublimed sulfur, dibenzothiazyl disulfide and nano silver in an open mill (the temperature is 60 ℃ and the speed is 20r/min) according to the corresponding proportion, and kneading for 5 min; standing at room temperature for 24h, kneading in open mill (room temperature, speed of 20r/min) for 5min, and molding in press vulcanizer (temperature of 160 deg.C, pressure of 10MPa) for 15 min.
(4) And (3) vulcanization post-treatment: the sample was removed, cooled at room temperature for 24h, and the resulting sheet was cut to the desired size for use.
FIG. 1 shows the actual graph of the sample having a thickness of 1.5mm, and Table 1 shows the performance parameters.
TABLE 1 Performance Table of flame-retardant flexible sound-insulating material prepared in example 1 and having a thickness of 1.5mm
Example 2:
the preparation method of the flame-retardant flexible sound insulation material comprises the following steps:
(1) weighing the following raw materials in parts by weight: 35 parts of ethylene propylene diene monomer, 20 parts of polypropylene, 5 parts of aluminum fiber, 10 parts of superfine metal iron powder (2 mu m), 15 parts of dioctyl phthalate, 5 parts of aluminum hydroxide, 2 parts of organic antimony, 2 parts of dibenzothiazyl disulfide, 2 parts of sublimed sulfur, 2 parts of silane coupling agent (KH570) and 2 parts of nano-silver.
(2) Pretreatment in vulcanization: firstly, putting ethylene propylene diene monomer, polypropylene, dioctyl phthalate and organic antimony into an open mill (the temperature is 160 ℃, and the speed is 20r/min), kneading for 2min, then adding aluminum fiber, superfine metal iron powder, aluminum hydroxide and silane coupling agent (KH570), and continuing to knead for 5 min.
(3) And (3) vulcanization treatment: after the mixed materials are cooled to room temperature, adding sublimed sulfur, dibenzothiazyl disulfide and nano silver in an open mill (the temperature is 60 ℃ and the speed is 20r/min) according to the corresponding proportion, and kneading for 5 min; standing at room temperature for 24h, kneading in open mill (room temperature, speed of 20r/min) for 5min, and molding in press vulcanizer (temperature of 160 deg.C, pressure of 10MPa) for 15 min.
(4) And (3) vulcanization post-treatment: and taking out the test sample, cooling for 24h at room temperature, and finally cutting the obtained flame-retardant flexible sound insulation sheet into a required size for use.
The performance parameters for a sample thickness of 1.0mm are shown in Table 2.
TABLE 2 Performance Table of flame-retardant flexible sound-insulating material prepared in example 2 and having a thickness of 1.0mm
Example 3:
the preparation method of the flame-retardant flexible sound insulation material comprises the following steps:
(1) weighing the following raw materials in parts by weight: 35 parts of butadiene rubber, 15 parts of polyurethane, 5 parts of aluminum fiber, 15 parts of ultrafine graphene powder (200nm), 15 parts of dioctyl adipate, 5 parts of zinc borate, 2 parts of calcium zinc powder, 2 parts of dibenzothiazyl disulfide, 2 parts of sublimed sulfur, 2 parts of silane coupling agent (KH570) and 2 parts of nano-silver.
(2) Pretreatment in vulcanization: firstly, putting the butadiene rubber, the polyurethane, the dioctyl adipate and the calcium-zinc powder into an open mill (the temperature is 160 ℃, and the speed is 20r/min) to be kneaded for 2min, then adding the aluminum fiber, the ultrafine graphene powder and the chromium complex coupling agent, and continuing to knead for 5 min.
(3) And (3) vulcanization treatment: after the mixed materials are cooled to room temperature, adding sublimed sulfur, dibenzothiazyl disulfide and nano silver in an open mill (the temperature is 60 ℃ and the speed is 20r/min) according to the corresponding proportion, and kneading for 5 min; standing at room temperature for 24h, kneading in open mill (room temperature, speed of 20r/min) for 5min, and molding in press vulcanizer (temperature of 160 deg.C, pressure of 10MPa) for 15 min.
(4) And (3) vulcanization post-treatment: and taking out the test sample, cooling for 24h at room temperature, and finally cutting the obtained flame-retardant flexible sound insulation sheet into a required size for use.
The performance parameters for a sample thickness of 1.0mm are shown in Table 3.
TABLE 3 Properties of the flame-retardant flexible sound-insulating material prepared in example 3 and having a thickness of 1.0mm
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. All technical schemes belonging to the idea of the invention belong to the protection scope of the invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention, and such modifications and embellishments should also be considered as within the scope of the invention.
Claims (8)
1. A flame-retardant flexible sound insulation material is characterized in that: the composition comprises the following components in parts by weight:
25 to 40 parts of halogen-free rubber,
15 to 25 parts of halogen-free plastic,
2-10 parts of a reinforcing fiber,
5-15 parts of heavy powder,
10-20 parts of a plasticizer,
5-10 parts of a flame retardant,
1-2 parts of a stabilizer,
1-2 parts of an accelerator, namely,
1 to 2 parts of a vulcanizing agent, and
1-2 parts of a coupling agent;
the reinforcing fiber is one or more of aluminum fiber, carbon fiber, polyester fiber and silicate fiber;
the heavy powder is one or more of ultrafine graphene powder, ultrafine aluminum oxide powder and ultrafine iron powder; the particle size of the heavy powder is 100 nm-100 mu m.
2. The flame retardant flexible sound insulating material according to claim 1, further comprising: 1-2 parts of an antibacterial agent.
3. The flame-retardant flexible sound insulation material as claimed in claim 2, wherein the halogen-free rubber is one or more of silicone rubber, butadiene rubber and ethylene propylene diene monomer rubber; the halogen-free plastic is one or more of polycarbonate resin, polypropylene, polyethylene and polyurethane.
4. The flame retardant flexible sound insulating material of claim 3, wherein the plasticizer is one of dibutyl phthalate, dioctyl adipate; the flame retardant is one or more of aluminum hydroxide, magnesium hydroxide and zinc borate; the stabilizer is one of calcium zinc powder, organic tin and organic antimony; the accelerator is one of dibenzothiazyl disulfide, N-cyclohexyl-2-benzothiazole sulfonamide and tetramethyl thiuram disulfide; the vulcanizing agent is one or more of sublimed sulfur, zinc oxide and magnesium oxide; the coupling agent is one of a chromium complex coupling agent, a silane coupling agent and a titanate coupling agent.
5. The flame-retardant flexible sound-insulating material according to claim 4, wherein the antibacterial agent is one of nano silver, silver-loaded phosphate and tetrachlorodicyanobenzene.
6. A method for preparing a flame retardant flexible sound insulation material according to any one of claims 1 to 5, comprising the steps of:
(1) firstly, placing halogen-free rubber, halogen-free plastic, plasticizer and stabilizer in an open mill, mixing for 1-5 min at the temperature of 120-180 ℃ and the rotating speed of 10-30 r/min, then adding reinforcing fiber, heavy powder, flame retardant and coupling agent, keeping the temperature and the rotating speed unchanged, mixing for 2-10 min, and cooling to room temperature to obtain a premix;
(2) adding an accelerant and a vulcanizing agent into the premix obtained in the step (1), mixing for 2-10 min at the temperature of 30-90 ℃ and the rotating speed of 10-30 r/min, standing at room temperature for 12-36 h, continuing mixing for 2-10 min at the rotating speed of 10-30 r/min, finally placing in a flat plate vulcanizing machine for compression molding, wherein the molding temperature is 120-180 ℃, the pressure is 5-15 MPa, and the time is 10-30 min, and cooling at room temperature to obtain the flexible sound insulation material.
7. The method for preparing the flame-retardant flexible sound insulation material according to claim 6, wherein the step (2) further comprises adding an antibacterial agent into the premix.
8. The flame-retardant flexible sound insulation material as claimed in any one of claims 1 to 5 or the flame-retardant flexible sound insulation material prepared by the preparation method as claimed in claim 6 or 7 is applied to a formed sound insulation member or used as a sound insulation member.
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| CN109054391B (en) * | 2018-08-06 | 2021-12-31 | 广州凝博科技有限公司 | Sound insulation material and preparation method thereof |
| CN108997646A (en) * | 2018-08-06 | 2018-12-14 | 李明珠 | A kind of antibacterial sound insulating sheet material and preparation method thereof |
| CN113278230B (en) * | 2021-06-15 | 2022-10-25 | 河北金威新型建筑材料有限公司 | Halogen-free flexible material |
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