CN108003483A - Flame retardant flexible sound insulating material and its preparation method and application - Google Patents
Flame retardant flexible sound insulating material and its preparation method and application Download PDFInfo
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- CN108003483A CN108003483A CN201711228112.2A CN201711228112A CN108003483A CN 108003483 A CN108003483 A CN 108003483A CN 201711228112 A CN201711228112 A CN 201711228112A CN 108003483 A CN108003483 A CN 108003483A
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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
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
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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
- C08K3/18—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
Abstract
The invention discloses a kind of flame retardant flexible sound insulating material and its preparation method and application, which includes the component of following parts by weight：25~40 parts of non-halogen rubber, halogen-free 15~25 parts of plastics, 2~10 parts of reinforcing fiber, 5~15 parts of heavy powder, 10~20 parts of plasticiser, 5~10 parts of fire retardant, 1~2 part of stabilizer, 1~2 part of accelerating agent, 1~2 part of vulcanizing agent, and 1~2 part of coupling agent.Preparation method includes：(1) raw material weighs；(2) mixing process before vulcanizing；(3) vulcanizing treatment；(4) cutting, cutting edge, are made finished product.The flame retardant flexible sound insulating material has the advantages that light-weight, sound insulation effect is good, intensity is high, fire-retardant and anti-aging property is good, foldable and winding, can be used as partiting sound member raw material or be widely used directly as partiting sound member.
Description
Technical field
The invention belongs to the new material technology field that insulates against sound, and in particular to a kind of flame retardant flexible sound insulating material and preparation method thereof
And application.
Background technology
With the development of social economy and the increase of urban population density, noise pollution is increasingly paid close attention to be subject to the public.
The noise-reducing devices such as sound barrier, acoustic hood are the most frequently used and most effective technological means in Noise Control.But it is conventional every
Sound barrier, acoustic hood reduce sound reflecting to reach enough oise insulation factors, and generally use metallic plate adds sound-absorbing material to add gold
Belong to the primary structure of perforated plate, so that cause the sound insulating structure that uses not only thick but also heavy, installation and removal very inconvenience.It is special
Not when by enclosing being to become electric appliance, the power equipment such as reactor, it is often necessary to which operation and maintenance are, it is necessary to light-dutyer and convenient for disassembly and assembly
Sound insulating material.Chinese patent CN201610387794.0, discloses a kind of soft high specific gravity rubber and plastic for sound insulation and noise reducing and sends out
Foam material, although its sound insulation property is preferable, a large amount of black, the toxic gas for the people that chokes can be produced when ignition, to anti-
The use in the more demanding region of fire is limited.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies of the prior art and provide it is a kind of it is light-weight, sound insulation effect is good,
The high and low cigarette of intensity, fire-retardant and anti-aging property be good, foldable and winding flame retardant flexible sound insulating material, correspondingly provides the resistance
Fire the preparation method and application of flexible sound-proof materials.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of flame retardant flexible sound insulating material, includes the component of following parts by weight：
25~40 parts of non-halogen rubber,
Halogen-free 15~25 parts of plastics,
2~10 parts of reinforcing fiber,
5~15 parts of heavy powder,
10~20 parts of plasticiser,
5~10 parts of fire retardant,
1~2 part of stabilizer,
1~2 part of accelerating agent,
1~2 part of vulcanizing agent, and
1~2 part of coupling agent.
Above-mentioned flame retardant flexible sound insulating material, it is preferred that the reinforcing fiber is aluminum fiber, carbon fiber, polyester fiber, silicon
One or more in silicate fiber.
Above-mentioned flame retardant flexible sound insulating material, it is preferred that the heavy powder is superfine graphite alkene powder, ultra-fine three oxidation
One or more in two aluminium powder bodies, superfine iron powder body；Particle diameter 100nm~100 μm of the heavy powder.
Above-mentioned flame retardant flexible sound insulating material, it is preferred that further include：1~2 part of fungicide.
Above-mentioned flame retardant flexible sound insulating material, it is preferred that the non-halogen rubber is silicon rubber, butadiene rubber, ternary second
The one or more of third rubber；The halogen-free plastics are poly- carbonic acid resin, polypropylene, polyethylene, one kind or more of polyurethane
Kind.
Above-mentioned flame retardant flexible sound insulating material, it is preferred that the plasticiser is dibutyl phthalate, phthalic acid
One kind in dioctyl ester, dioctyl adipate；The fire retardant is aluminium hydroxide, magnesium hydroxide, one kind in zinc borate or more
Kind；The stabilizer is calcium zinc powder, one kind in organotin, antimony organic；The accelerating agent is dibenzothiazyl disulfide, N- rings
One kind in base -2-[4-morpholinodithio sulfenamide, tetramethyl disulfide thiuram；The vulcanizing agent for sublimed sulfur, zinc oxide,
One or more in magnesia；The coupling agent is one in chromium complex coupling agent, silane coupling agent, titanate coupling agent
Kind.
Above-mentioned flame retardant flexible sound insulating material, it is preferred that the antiseptic is nano silver, carries silver-colored phosphate, tetrachlorobenzene two
One kind in nitrile.
The inventive concept total as one, the present invention also provides a kind of preparation side of above-mentioned flame retardant flexible sound insulating material
Method, comprises the following steps：
(1) first by non-halogen rubber, halogen-free plastics, plasticiser, stabilizer be placed in open mill temperature for 120 DEG C~
180 DEG C, rotating speed is that 1~5min is kneaded under 10~30r/min, adds reinforcing fiber, heavy powder, fire retardant and coupling agent,
Maintain temperature and rotating speed constant, be kneaded 2~10min, be cooled to room temperature, obtain premix；
(2) accelerating agent and vulcanizing agent are added in the premix obtained by step (1), at 30~90 DEG C, rotating speed for 10~
Under 30r/min be kneaded 2~10min, room temperature place 12~36h after, room temperature rotating speed be 10~30r/min under continue mixing 2~
10min, is finally placed in compression molding on vulcanizing press, and molding temperature is 120~180 DEG C, and pressure is 5~15MPa, and the time is
10~30min, flexible sound-proof materials are obtained after room temperature cooling.
The preparation method of above-mentioned flame retardant flexible sound insulating material, it is preferred that in the step (2), be additionally included in premix
Middle addition antiseptic.
The inventive concept total as one, the present invention also provides a kind of above-mentioned flame retardant flexible sound insulating material or above-mentioned system
Flame retardant flexible sound insulating material made from Preparation Method is in shaped acoustical insulating component or application as partiting sound member.
The novelty of the present invention is：
The oise insulation factor of homogeneous material observes " mass law ", i.e. the about big oise insulation factor of density is bigger, and the low cigarette resistance of the present invention
Fire flexible sound-proof materials by the basis of non-halogen rubber and plastics batch mixing, by add reinforcing fiber (as aluminum fiber,
Carbon fiber, polyester fiber, silicate fiber etc.) and superfine powder (such as graphene, alundum (Al2O3), iron powder) material can be increased
The density of material, while be dispersed in the reinforcing fiber in batch mixing the sound reflecting at multilayer difference interface can be formed with superfine powder, increase
The consumption of acoustic energy, therefore the oise insulation factor of material can be effectively improved, break through " mass law ".Simultaneously as fiber enhancer
Addition, by fibroplastic cross-linked structure, improves resistance to compression and the tensile property of material.And the material in the present invention
It is halogen-free, reaches self-gravitation effect by adding nontoxic fire retardant, poisonous black smoke will not be produced in burning, because
This fire protecting performance is also largely increased.
Compared with prior art, the advantage of the invention is that：
1st, the present invention is using non-halogen rubber and inorganic filler plastic blending material as complex matrix, using fiber enhancer and modifying agent as auxiliary
Filler, using fire retardant, plasticiser, stabilizer, accelerating agent, vulcanizing agent, coupling agent, fungicide as main auxiliary agent, the molding resistance of institute
Firing flexible sound-proof materials has that light-weight, sound insulation property is good, and the advantages that conveniently can be folded and be wound, without poisonous after burning
Black smoke, is easily installed and is dismantled by the molding partiting sound member of flame retardant flexible sound insulating material institute and noise-reducing device, be particularly suitable for
Need the use environment being rapidly assembled and disassembled, while it is excellent also to have that fire-retardant, anti-aging property is good, resistance to compression and tensile property are good etc.
Point.2nd, the preparation process of flame retardant flexible sound insulating material of the invention is simple, suitable for large-scale production.
Brief description of the drawings
Fig. 1 is the pictorial diagram of flame retardant flexible sound insulating material prepared by the embodiment of the present invention 1.
Embodiment
Below in conjunction with specific preferred embodiment, the invention will be further described, but not thereby limiting the invention
Protection domain.
Embodiment 1：
A kind of preparation method of flame retardant flexible sound insulating material of the invention, comprises the following steps：
(1) raw material is weighed according to following weight proportion：30 parts of EPDM, 20 parts of polypropylene, 5 parts of carbon fiber, ultra-fine gold
Belong to 15 parts of iron powder (2 μm), 15 parts of dioctyl adipate, 5 parts of aluminium hydroxide, 2 parts of calcium zinc powder, 2 parts of dibenzothiazyl disulfide, rises
Magnificent 2 parts of sulphur, 2 parts of silane coupling agent (KH570), 2 parts of nano silver.
(2) pre-treatment is vulcanized：Ethylene-propylene-diene monomer, polypropylene, dioctyl adipate, calcium zinc powder are first put into open mill (temperature
Spend for 160 DEG C, speed 20r/min) in mediate 2min after, it is even to add carbon fiber, superfine metal iron powder, aluminium hydroxide and silane
Join agent (KH570), continue to mediate 5min.
(3) vulcanizing treatment：After batch mixing is cooled to room temperature, pressed in open mill (temperature is 60 DEG C, speed 20r/min)
Corresponding proportioning addition sublimed sulfur, dibenzothiazyl disulfide and nano silver, mediate 5min；After room temperature places 24h, in open mill
(room temperature, speed 20r/min) mediates 5min, is subsequently placed in vulcanizing press (temperature is 160 DEG C, pressure 10MPa) upper mold
It is molded, time 15min.
(4) vulcanization post processing：Sample is taken out, room temperature cooling 24h, is finally cut into required size for making by the sheet material of gained
With.
Pictorial diagram when thickness of sample is 1.5mm is as shown in Figure 1, performance parameter is as shown in table 1.
Thickness prepared by 1 embodiment 1 of table is the performance table of the flame retardant flexible sound insulating material of 1.5mm
Embodiment 2：
A kind of preparation method of flame retardant flexible sound insulating material of the invention, comprises the following steps：
(1) raw material is weighed according to following weight proportion：35 parts of EPDM, 20 parts of polypropylene, 5 parts of aluminum fiber, ultra-fine gold
Belong to 10 parts of iron powder (2 μm), 15 parts of dioctyl phthalate, 5 parts of aluminium hydroxide, 2 parts of antimony organic, dibenzothiazyl disulfide 2
Part, 2 parts of sublimed sulfur, 2 parts of silane coupling agent (KH570), 2 parts of nano silver.
(2) pre-treatment is vulcanized：EPDM, polypropylene, dioctyl phthalate, antimony organic are first put into open mill
After mediating 2min in (temperature is 160 DEG C, speed 20r/min), aluminum fiber, superfine metal iron powder, aluminium hydroxide and silicon are added
Alkane coupling agent (KH570), continues to mediate 5min.
(3) vulcanizing treatment：After batch mixing is cooled to room temperature, pressed in open mill (temperature is 60 DEG C, speed 20r/min)
Corresponding proportioning addition sublimed sulfur, dibenzothiazyl disulfide and nano silver, mediate 5min；After room temperature places 24h, in open mill
(room temperature, speed 20r/min) mediates 5min, is subsequently placed in vulcanizing press (temperature is 160 DEG C, pressure 10MPa) upper mold
It is molded, time 15min.
(4) vulcanization post processing：Sample is taken out, room temperature cooling 24h, is finally cut into institute by the flame retardant flexible sound insulation sheet material of gained
Size is needed for using.
Performance parameter when thickness of sample is 1.0mm is as shown in table 2.
Thickness prepared by 2 embodiment 2 of table is the performance table of the flame retardant flexible sound insulating material of 1.0mm
Embodiment 3：
A kind of preparation method of flame retardant flexible sound insulating material of the invention, comprises the following steps：
(1) raw material is weighed according to following weight proportion：35 parts of butadiene rubber, 15 parts of polyurethane, 5 parts of aluminum fiber, ultra-fine stone
Black 15 parts of alkene 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), 2 parts of nano silver.
(2) pre-treatment is vulcanized：Butadiene rubber, polyurethane, dioctyl adipate, calcium zinc powder are first put into open mill (temperature
For 160 DEG C, speed 20r/min) in mediate 2min after, add aluminum fiber, superfine graphite alkene powder and chromium complex coupling agent,
Continue to mediate 5min.
(3) vulcanizing treatment：After batch mixing is cooled to room temperature, pressed in open mill (temperature is 60 DEG C, speed 20r/min)
Corresponding proportioning addition sublimed sulfur, dibenzothiazyl disulfide and nano silver, mediate 5min；After room temperature places 24h, in open mill
(room temperature, speed 20r/min) mediates 5min, is subsequently placed in vulcanizing press (temperature is 160 DEG C, pressure 10MPa) upper mold
It is molded, time 15min.
(4) vulcanization post processing：Sample is taken out, room temperature cooling 24h, is finally cut into institute by the flame retardant flexible sound insulation sheet material of gained
Size is needed for using.
Performance parameter when thickness of sample is 1.0mm is as shown in table 3.
Thickness prepared by 3 embodiment 3 of table is the performance table of the flame retardant flexible sound insulating material of 1.0mm
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example.All technical solutions belonged under thinking of the present invention belong to protection scope of the present invention.It is noted that for the art
Those of ordinary skill for, improvements and modifications without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of flame retardant flexible sound insulating material, includes the component of following parts by weight：
25~40 parts of non-halogen rubber,
Halogen-free 15~25 parts of plastics,
2~10 parts of reinforcing fiber,
5~15 parts of heavy powder,
10~20 parts of plasticiser,
5~10 parts of fire retardant,
1~2 part of stabilizer,
1~2 part of accelerating agent,
1~2 part of vulcanizing agent, and
1~2 part of coupling agent.
2. flame retardant flexible sound insulating material according to claim 1, it is characterised in that the reinforcing fiber is aluminum fiber, carbon
One or more in fiber, polyester fiber, silicate fiber.
3. flame retardant flexible sound insulating material according to claim 1, it is characterised in that the heavy powder is superfine graphite alkene
One or more in powder, ultra-fine alundum (Al2O3) powder, superfine iron powder body；The particle diameter of the heavy powder for 100nm~
100μm。
4. according to claims 1 to 3 any one of them flame retardant flexible sound insulating material, it is characterised in that further include：Fungicide 1
~2 parts.
5. flame retardant flexible sound insulating material according to claim 4, it is characterised in that the non-halogen rubber for silicon rubber,
The one or more of butadiene rubber, ethylene propylene diene rubber；The halogen-free plastics are poly- carbonic acid resin, polypropylene, polyethylene, poly-
The one or more of urethane.
6. flame retardant flexible sound insulating material according to claim 5, it is characterised in that the plasticiser is phthalic acid two
One kind in butyl ester, dioctyl phthalate, dioctyl adipate；The fire retardant is aluminium hydroxide, magnesium hydroxide, boric acid
One or more in zinc；The stabilizer is calcium zinc powder, one kind in organotin, antimony organic；The accelerating agent is curing
One kind in bisbenzothiazole, N- cyclohexyls -2-[4-morpholinodithio sulfenamide, tetramethyl disulfide thiuram；The vulcanizing agent
For the one or more in sublimed sulfur, zinc oxide, magnesia；The coupling agent is chromium complex coupling agent, silane coupling agent, titanium
One kind in acid esters coupling agent.
7. flame retardant flexible sound insulating material according to claim 6, it is characterised in that the antiseptic is nano silver, carries silver
One kind in phosphate, sweep.
8. a kind of preparation method of such as claim 1~7 any one of them flame retardant flexible sound insulating material, comprises the following steps：
(1) it is 120 DEG C~180 first non-halogen rubber, halogen-free plastics, plasticiser, stabilizer to be placed in open mill in temperature
DEG C, rotating speed is that 1~5min is kneaded under 10~30r/min, adds reinforcing fiber, heavy powder, fire retardant and coupling agent, is maintained
Temperature and rotating speed are constant, are kneaded 2~10min, are cooled to room temperature, obtain premix；
(2) accelerating agent and vulcanizing agent are added in the premix obtained by step (1), at 30~90 DEG C, rotating speed is 10~30r/min
2~10min of lower mixing, after room temperature places 12~36h, continues 2~10min of mixing, most in the case where room temperature rotating speed is 10~30r/min
It is placed on compression molding on vulcanizing press, molding temperature is 120~180 DEG C, and pressure be 5~15MPa, the time is 10~
30min, flexible sound-proof materials are obtained after room temperature cooling.
9. the preparation method of flame retardant flexible sound insulating material according to claim 8, it is characterised in that in the step (2),
It is additionally included in premix and adds antiseptic.
10. a kind of such as claim 1~7 any one of them flame retardant flexible sound insulating material or as claimed in claim 8 or 9 system
Flame retardant flexible sound insulating material made from Preparation Method is in shaped acoustical insulating component or application as partiting sound member.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711228112.2A CN108003483B (en) | 2017-11-29 | 2017-11-29 | Flame-retardant flexible sound insulation material and preparation method and application thereof |
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| CN201711228112.2A CN108003483B (en) | 2017-11-29 | 2017-11-29 | Flame-retardant flexible sound insulation material and preparation method and application thereof |
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| CN108003483B CN108003483B (en) | 2021-03-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108976766A (en) * | 2018-06-22 | 2018-12-11 | 中山博锐斯新材料股份有限公司 | A kind of waterproof moisture-penetrating urethane microporous membrane 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 |
| CN109054391A (en) * | 2018-08-06 | 2018-12-21 | 李明珠 | A kind of acoustic material and preparation method thereof |
| CN113278230A (en) * | 2021-06-15 | 2021-08-20 | 河北金威新型建筑材料有限公司 | Halogen-free flexible material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106084338A (en) * | 2016-06-02 | 2016-11-09 | 上海交通大学 | A kind of soft high specific gravity rubber plastic foam material for sound insulation and noise reducing |
| CN106566063A (en) * | 2016-10-31 | 2017-04-19 | 江苏昊晟塑业科技有限公司 | Foaming material for sound absorbing of automobile trim plate |
-
2017
- 2017-11-29 CN CN201711228112.2A patent/CN108003483B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106084338A (en) * | 2016-06-02 | 2016-11-09 | 上海交通大学 | A kind of soft high specific gravity rubber plastic foam material for sound insulation and noise reducing |
| CN106566063A (en) * | 2016-10-31 | 2017-04-19 | 江苏昊晟塑业科技有限公司 | Foaming material for sound absorbing of automobile trim plate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108976766A (en) * | 2018-06-22 | 2018-12-11 | 中山博锐斯新材料股份有限公司 | A kind of waterproof moisture-penetrating urethane microporous membrane 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 |
| CN109054391A (en) * | 2018-08-06 | 2018-12-21 | 李明珠 | A kind of acoustic material and preparation method thereof |
| 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 |
| CN113278230A (en) * | 2021-06-15 | 2021-08-20 | 河北金威新型建筑材料有限公司 | Halogen-free flexible material |
| 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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| Publication number | Publication date |
|---|---|
| CN108003483B (en) | 2021-03-23 |
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