CN109181087B - Vibration-damping, flame-retardant and sound-insulating composite material for rail transit - Google Patents
Vibration-damping, flame-retardant and sound-insulating composite material for rail transit Download PDFInfo
- Publication number
- CN109181087B CN109181087B CN201810972415.3A CN201810972415A CN109181087B CN 109181087 B CN109181087 B CN 109181087B CN 201810972415 A CN201810972415 A CN 201810972415A CN 109181087 B CN109181087 B CN 109181087B
- Authority
- CN
- China
- Prior art keywords
- parts
- retardant
- flame
- damping
- composite material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
- C08L23/0853—Ethene vinyl acetate copolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/24—Layered products comprising a layer of synthetic resin characterised by the use of special additives using solvents or swelling agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a vibration-damping, flame-retardant and sound-insulating composite material for rail transit, which is of a layered structure and comprises damping material layers and flame-retardant material layers which are alternately superposed, wherein the damping material layers comprise the following components in parts by weight: 10-20 parts of thermoplastic resin; 5-15 parts of a block copolymer; 50-80 parts of inorganic filler; 3-5 parts of an auxiliary agent; wherein the block copolymer is a styrene-ethylene branched polydiene-styrene triblock copolymer; the flame-retardant material layer comprises the following components in parts by weight: 15-50 parts of thermoplastic resin; 20-50 parts of an intumescent flame retardant; 10-50 parts of inorganic filler; 3-5 parts of an auxiliary agent; wherein the intumescent flame retardant is a mixture consisting of piperazine pyrophosphate and poly melamine phosphate. The layered composite material finally prepared by the invention has better comprehensive performance, and particularly has excellent vibration damping performance, sound insulation performance and flame retardant performance.
Description
Technical Field
The invention belongs to the field of rail transit, and particularly relates to a layered sound-insulation composite material for rail transit.
Background
The sound insulation material can greatly attenuate the transmission of noise, so the sound insulation material is widely applied to the fields of buildings, automobiles, rail transit, petrochemical industry, electric power and electricity and the like.
The existing high polymer sound insulation material mainly has two schemes, the first one is composed of polyvinyl chloride resin, a flame retardant, a plasticizer, inorganic filler and the like, is applied to rail transit, buildings, petrochemical pipelines and the like, and has better vibration and noise reduction effects. However, the material needs to be added with a large amount of plasticizer, so that the environmental protection performance is poor, and in addition, as a large amount of hydrogen chloride gas is released during the combustion of the polyvinyl chloride, the smoke density and the smoke toxicity during the combustion are very high, so that the large-scale application of the material is limited. The second one is composed of ethylene-vinyl acetate copolymer, polyolefin elastomer, ethylene propylene diene monomer and other environment-friendly thermoplastic resins, inorganic filler, auxiliary agents and the like, and is widely applied to the fields of automobiles, household appliances, electrical equipment and the like.
The sound insulation material applied to the rail transit generally requires high comprehensive performance, and the sound insulation material in the prior art is difficult to meet the requirements of high damping performance and high flame retardant performance. For example, patent CN106142781A discloses an alternate layered composite sound insulation damping sheet material, which is obtained by alternately compounding a sound insulation layer and a damping layer, and the final sheet material has both excellent sound insulation performance and damping performance, but the sheet material has poor flame retardant performance and is difficult to satisfy the requirement of high comprehensive performance material.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects and shortcomings in the background technology, and provide a vibration-damping, flame-retardant and sound-insulating composite material for rail transit, which has excellent comprehensive performances of flame retardance, damping, sound insulation and the like and is environment-friendly. In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the composite material is of a layered structure and comprises damping material layers and flame-retardant material layers which are alternately stacked, wherein the damping material layers comprise the following components in parts by weight:
wherein the block copolymer is a styrene-ethylene branched polydiene-styrene triblock copolymer;
the flame-retardant material layer comprises the following components in parts by weight:
wherein the intumescent flame retardant is a mixture consisting of piperazine pyrophosphate and poly melamine phosphate.
In the vibration-damping, flame-retardant and sound-insulating composite material for rail transit, preferably, the loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is greater than 0.6, and the peak temperature is between-5 and 30 ℃. More preferably, the styrene-ethylene branched polydiene-styrene triblock copolymer has a loss factor tan delta peak greater than 0.8 and a peak temperature between 0 and 25 ℃. The limitation is to improve the damping loss factor of the sound insulation composite material in a wider temperature range near the normal temperature as much as possible, so that the vibration attenuation performance of the composite material can be improved, and the low-frequency sound insulation performance of the material can be effectively improved.
In the vibration-damping, flame-retardant and sound-insulating composite material for rail transit, the ratio relationship between piperazine pyrophosphate and melamine phosphate is (1: 4) - (5: 1), more preferably, the ratio relationship between piperazine pyrophosphate and melamine phosphate is (1: 2) - (4: 1), and further preferably, the ratio is 2: 1. when the ratio of piperazine pyrophosphate to the melamine phosphate is 2:1, the carbon layer formed when the material is burnt is the most stable, and the flame retardant effect is the best.
In the vibration-damping, flame-retardant and sound-insulating composite material for rail transit, preferably, the thermoplastic resin is one or more of ethylene-vinyl acetate copolymer, polyolefin elastomer, ethylene propylene diene monomer, polyethylene and polypropylene; the inorganic filler is one or more of calcium carbonate, barium sulfate and mica powder; the auxiliary agent comprises the following components in percentage by mass: naphthenic oil: stearic acid: the antioxidant is (0.5-3): (0.2-1): (0.5-1). By adopting the environment-friendly thermoplastic resin, toxic gases such as hydrogen chloride and the like can not be generated during combustion, and the environment-friendly thermoplastic resin is more environment-friendly.
In the above vibration-damping, flame-retardant and sound-insulating composite material for rail transit, preferably, the number of layers of the layered structure is 4 to 64.
The invention also provides a preparation method of the vibration-damping, flame-retardant and sound-insulation composite material for rail transit, which is realized by a multiplier according to a multilayer co-extrusion principle and specifically comprises the following steps:
(1) putting the damping material layer and the flame-retardant material layer into a preheated internal mixer, uniformly mixing and plasticizing the components to obtain a damping plasticized material and a flame-retardant plasticized material respectively;
(2) respectively feeding the damping plasticized material and the flame-retardant plasticized material obtained in the step (1) to feed ports of two extruders, feeding by a conical double screw, and extruding the materials through a flat die orifice;
(3) and (3) carrying out three-roll shaping on the extruded materials in the step (2) to obtain the flame-retardant sound-insulation composite material for the rail transit.
In the above preparation method, preferably, the internal mixer in the step (1) is preheated to 120-; in the step (2), the rotation speed of the extruder is 50-250rpm, the temperature is 120-160 ℃, and the feeding speed of the two layers of materials can be controlled by controlling the rotation speed of the extruder, so that the thickness ratio of the two layers of materials is controlled.
In the damping material layer, the styrene-ethylene branched polydiene-styrene triblock copolymer is added in the matrix thermoplastic resin, the molecular structure of the styrene-ethylene branched polydiene-styrene triblock copolymer contains larger side groups, the damping performance of the composite material can be obviously improved, the loss factor of the composite material reaches more than 0.2 within a wide temperature range of-20-40 ℃, the good damping performance improves the internal friction and energy loss of the composite material during vibration, the material is endowed with excellent vibration and sound insulation performance, particularly, the low-frequency vibration and noise are effectively blocked, and the riding comfort can be greatly improved when the styrene-ethylene branched polydiene-styrene triblock copolymer is applied to rail transit. The environment-friendly inorganic intumescent flame retardant adopted in the flame retardant material layer provided by the invention is used for carrying out flame retardant modification on the material, and the environment-friendly flame retardant can effectively improve the flame retardance of the material, particularly shows that the limit oxygen index of the material is improved, the smoke density and smoke toxicity of the material during combustion are reduced, and valuable time can be won for people to escape under the condition of fire.
After the two materials are mutually superposed and compounded, the obtained composite material with the layered structure has more obvious advantages compared with the material which directly and homogeneously mixes the flame retardant and the block copolymer, and is mainly embodied in the following points: 1) because the proportion of the damping material layer and the flame-retardant material layer is different, after the damping material layer and the flame-retardant material layer are alternately compounded in a layered manner, a large number of continuous layer interfaces exist, and the damping performance and the temperature range of the material can be further widened by the friction of the interface layers and the slippage of molecular chains. 2) The filling ratio of the inorganic powder material in the composite material is fixed, so the ratio of the inorganic filler to the flame retardant must be considered in the homogeneous mixed material, and the two are in a trade-off relationship. However, in the layered material, because the inorganic filler in the flame retardant material layer can be less, the filling amount of the flame retardant can be larger, and on the contrary, the flame retardant is not needed to be considered in the damping material layer, the inorganic filler can be filled to the maximum extent, and the material density is increased to the maximum extent. Because the fire retardant filling amount is bigger, the flame retardant efficiency of pure flame retardant material layer is very good, after the combination of alternate stratiform, is equivalent to the flame retardant material layer and presss from both sides the damping material layer in the centre, and the flame retardant material layer inflation effectively isolates air and heat when the conflagration burning takes place, plays fine guard action to the damping material layer, consequently overall than the flame retardant efficiency of homogeneity mixed structure better. 3) Under the condition of ensuring the overall density of the material, more resin matrixes can be added into the flame-retardant material layer, so that the material has better mechanical properties. 4) In the homogeneous blending material, in order to achieve better damping and flame retardant effects, the content of the block copolymer and the intumescent flame retardant are required to be increased at the same time, but in the layered structure material, the block copolymer and the intumescent flame retardant are only respectively present in the damping material layer and the flame retardant material layer, although the content of each single layer is higher than that of the homogeneous blending material, in the whole material formula, the content of the two raw materials is lower than that of the homogeneous blending material. Therefore, the use amount of the block copolymer and the intumescent flame retardant can be reduced by an alternate layered compounding mode, and the cost is lower.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the damping material layers and the flame-retardant material layers are alternately laminated and compounded, and the components in the materials of all layers are mutually synergistic, so that the finally prepared laminated composite material has better comprehensive performance, and particularly has excellent vibration damping performance, flame retardant performance and sound insulation performance.
2. All components of the vibration-damping, flame-retardant and sound-insulating composite material for rail transit are green and environment-friendly materials, and the finally prepared composite material has the performance advantages of being green and environment-friendly, excellent in damping and sound-insulating properties and the like.
3. The preparation method is simple, easy to operate and good in repeatability.
Detailed Description
In order to facilitate an understanding of the present invention, the present invention will be described more fully and in detail with reference to the preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Example 1:
the composite material comprises a damping material layer and a flame-retardant material layer which are alternately stacked, wherein the total number of the layers is 16. The damping material layer comprises the following components in parts by weight: 15 parts of ethylene-vinyl acetate copolymer, 10 parts of styrene-ethylene branched polydiene-styrene triblock copolymer, 75 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid and 10100.5 parts of antioxidant. The flame-retardant material layer comprises the following components in parts by weight: 40 parts of ethylene-vinyl acetate copolymer, 50 parts of inorganic intumescent flame retardant, 10 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein the temperature of a loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is 20 ℃, and the peak value is 1.2; the inorganic intumescent flame retardant is piperazine pyrophosphate and poly melamine phosphate, and the weight ratio of the inorganic intumescent flame retardant to the flame retardant is 2:1, in a mixture of the components.
The preparation method of the composite material comprises the following steps:
(1) banburying: weighing the damping material layer and the flame-retardant material layer according to the proportion, putting the weighed components into an internal mixer preheated to 150 ℃, and uniformly mixing and plasticizing the components to obtain a damping plasticized material and a flame-retardant plasticized material respectively;
(2) extruding: the plasticized damping plasticized material and the flame-retardant plasticized material are respectively sent to feed ports of two extruders while the materials are hot and fed through a conical double screw, the rotating speed of the damping layer material extruder is 230 revolutions per minute, the rotating speed of the flame-retardant layer material extruder is 230 revolutions per minute, the temperature of the extruder is 120 plus materials, and the materials are extruded through a flat die orifice;
(3) three-roller sizing: the three rollers are adjusted to a certain thickness in advance, cooling water is introduced, the extruded materials are properly stretched, extruded and shaped by the three rollers to form a flat sound insulation material, and the thickness of the sound insulation material is 1 mm.
Example 2:
the composite material comprises a damping material layer and a flame-retardant material layer which are alternately stacked, wherein the total number of the layers is 16. The damping material layer comprises the following components in parts by weight: 15 parts of ethylene-vinyl acetate copolymer, 10 parts of styrene-ethylene branched polydiene-styrene triblock copolymer, 75 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid, 10100.5 parts of antioxidant, 0.5 part of coupling agent and 1 part of dispersing agent. The flame-retardant material layer comprises the following components in parts by weight: 30 parts of ethylene-vinyl acetate copolymer, 40 parts of inorganic intumescent flame retardant, 30 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein the temperature of a loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is 20 ℃, and the peak value is 1.2; the inorganic intumescent flame retardant is piperazine pyrophosphate and poly melamine phosphate, and the weight ratio of the inorganic intumescent flame retardant to the flame retardant is 1: 1, in a mixture of the components.
The composite material was prepared in the same manner as in example 1, and the thickness of the prepared sound-insulating material was 2 mm.
Example 3:
the composite material comprises a damping material layer and a flame-retardant material layer which are alternately stacked, wherein the total number of the layers is 8. The damping material layer comprises the following components in parts by weight: 10 parts of polyolefin elastomer, 15 parts of styrene-ethylene branched polydiene-styrene triblock copolymer, 75 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid and 10100.5 parts of antioxidant. The flame-retardant material layer comprises the following components in parts by weight: 40 parts of polyolefin elastomer, 50 parts of inorganic intumescent flame retardant, 10 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein the temperature of a loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is-5 ℃, and the peak value is 0.7; the inorganic intumescent flame retardant is piperazine pyrophosphate and poly melamine phosphate, and the weight ratio of the inorganic intumescent flame retardant to the flame retardant is 2:1, in a mixture of the components.
The composite material was prepared in the same manner as in example 1, and the thickness of the prepared sound-insulating material was 1 mm.
Example 4:
the composite material includes alternately superposed damping material layer and fire retarding material layer, and has 64 total layers. The damping material layer comprises the following components in parts by weight: 12 parts of polyolefin elastomer, 3 parts of polypropylene, 10 parts of styrene-ethylene branched polydiene-styrene triblock copolymer, 75 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid and 10100.5 parts of antioxidant. The flame-retardant material layer comprises the following components in parts by weight: 40 parts of polyolefin elastomer, 50 parts of inorganic intumescent flame retardant, 10 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein the temperature of a loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is-5 ℃, and the peak value is 0.7; the inorganic intumescent flame retardant is piperazine pyrophosphate and poly melamine phosphate, and the weight ratio of the inorganic intumescent flame retardant to the flame retardant is 3: 1, in a mixture of the components.
The above composite material was prepared in the same manner as in example 1, except that the rotational speed of the damping layer material extruder was 250rpm, the rotational speed of the flame retardant layer material extruder was 160 rpm, and the thickness of the prepared sound insulating material was 3 mm.
Example 5:
the composite material comprises a damping material layer and a flame-retardant material layer which are alternately stacked, wherein the total number of the layers is 16. The damping material layer comprises the following components in parts by weight: 20 parts of polyolefin elastomer, 5 parts of styrene-ethylene branched polydiene-styrene triblock copolymer, 75 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid and 10100.5 parts of antioxidant. The flame-retardant material layer comprises the following components in parts by weight: 40 parts of polyolefin elastomer, 40 parts of inorganic intumescent flame retardant, 20 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein the temperature of a loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is 25 ℃, and the peak value is 1.0; the inorganic intumescent flame retardant is piperazine pyrophosphate and poly melamine phosphate, and the weight ratio of the inorganic intumescent flame retardant to the flame retardant is 2:1, in a mixture of the components.
The composite material was prepared in the same manner as in example 1, and the thickness of the prepared sound-insulating material was 1 mm.
Comparative example 1:
the composite material comprises a damping material layer and a flame-retardant material layer which are alternately stacked, wherein the total number of the layers is 16. The damping material layer comprises the following components in parts by weight: 15 parts of ethylene-vinyl acetate copolymer, 10 parts of polyvinyl acetate, 40 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid and 10100.5 parts of antioxidant. The flame-retardant material layer comprises the following components in parts by weight: 40 parts of ethylene-vinyl acetate copolymer, 50 parts of inorganic intumescent flame retardant, 10 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein, the inorganic intumescent flame retardant is piperazine pyrophosphate and poly melamine phosphate, and the weight ratio of the inorganic intumescent flame retardant to the flame retardant is 2:1, in a mixture of the components.
The composite material was prepared in the same manner as in example 1, and the thickness of the prepared sound-insulating material was 1 mm.
Comparative example 2:
the composite material comprises a damping material layer and a flame-retardant material layer which are alternately stacked, wherein the total number of the layers is 16. The damping material layer comprises the following components in parts by weight: 15 parts of ethylene-vinyl acetate copolymer, 10 parts of styrene-ethylene branched polydiene-styrene triblock copolymer, 75 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid and 10100.5 parts of antioxidant. The flame-retardant material layer comprises the following components in parts by weight: 40 parts of ethylene-vinyl acetate copolymer, 50 parts of magnesium hydroxide, 10 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein the temperature of the loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is 20 ℃, and the peak value is 1.2.
The composite material was prepared in the same manner as in example 1, and the thickness of the prepared sound-insulating material was 2 mm.
Comparative example 3:
the composite material includes alternately superposed damping material layer and fire retarding material layer, and has 64 total layers. The damping material layer comprises the following components in parts by weight: 15 parts of ethylene-vinyl acetate copolymer, 10 parts of styrene-ethylene branched polydiene-styrene triblock copolymer, 75 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid and 10100.5 parts of antioxidant. The flame-retardant material layer comprises the following components in parts by weight: 40 parts of ethylene-vinyl acetate copolymer, 50 parts of inorganic intumescent flame retardant, 10 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein, the temperature of the loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is 20 ℃, the peak value is 1.2, the inorganic intumescent flame retardant is piperazine pyrophosphate and poly melamine phosphate, and the weight ratio of the inorganic intumescent flame retardant is 1: 3, and (b) a mixture of the components.
The composite material was prepared in the same manner as in example 1, and the thickness of the prepared sound-insulating material was 3 mm.
Comparative example 4:
the composite material comprises a damping material layer and a flame-retardant material layer which are alternately stacked, wherein the total number of the layers is 8. The damping material layer comprises the following components in parts by weight: 10 parts of ethylene-vinyl acetate copolymer, 15 parts of styrene-ethylene branched polydiene-styrene triblock copolymer, 75 parts of barium sulfate, 2 parts of naphthenic oil, 1 part of stearic acid and 10100.5 parts of antioxidant. The flame-retardant material layer comprises the following components in parts by weight: 40 parts of ethylene-vinyl acetate copolymer, 50 parts of inorganic intumescent flame retardant, 10 parts of barium sulfate, 2 parts of naphthenic oil and 1 part of stearic acid. Wherein, the temperature of the loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is-10 ℃, the peak value is 0.5, the inorganic intumescent flame retardant is piperazine pyrophosphate and poly melamine phosphate, and the weight ratio of the inorganic intumescent flame retardant is 2:1, in a mixture of the components.
The composite material was prepared in the same manner as in example 1, and the thickness of the prepared sound-insulating material was 1 mm.
The performance parameters of the composite materials prepared in examples 1 to 5 and comparative examples 1 to 4 were measured as shown in tables 1 and 2 below.
Table 1: performance test method and performance parameters of composite material prepared in example
Table 2: performance test method and performance parameters of composite material prepared in comparative example
As shown in tables 1 and 2, the styrene-ethylene branched polydiene-styrene triblock copolymer provides excellent damping performance, and particularly has a very high tan δ loss factor at about 20 ℃ to 40 ℃, so that the alternating layered composite has relatively better sound insulation performance. As can be seen from comparative example 1, when other damping materials were added, the tan delta loss factor of the material was relatively low around 20 ℃ to 40 ℃, resulting in poor sound insulation performance. As can be seen from comparative examples 2 and 3, only the magnesium hydroxide flame retardant or piperazine pyrophosphate and melamine phosphate were added to the flame retardant layer material in a ratio of 1: 3, the flame retardant effect of the alternating layered composite is also inferior to that of the intumescent flame retardant consisting of piperazine pyrophosphate and melamine phosphate in a ratio of 2: 1.
Claims (7)
1. The composite material is characterized by being of a layered structure and comprising a damping material layer and a flame-retardant material layer which are alternately stacked, wherein the damping material layer comprises the following components in parts by weight:
10-20 parts of thermoplastic resin;
5-15 parts of a block copolymer;
50-80 parts of inorganic filler;
3-5 parts of an auxiliary agent;
wherein the block copolymer is a styrene-ethylene branched polydiene-styrene triblock copolymer; the loss factor tan delta peak of the styrene-ethylene branched polydiene-styrene triblock copolymer is greater than 0.6, and the peak temperature is between-5 ℃ and 30 ℃;
the flame-retardant material layer comprises the following components in parts by weight:
15-50 parts of thermoplastic resin;
20-50 parts of an intumescent flame retardant;
10-50 parts of inorganic filler;
3-5 parts of an auxiliary agent;
wherein the intumescent flame retardant is a mixture consisting of piperazine pyrophosphate and poly melamine phosphate; the ratio relationship between the piperazine pyrophosphate and the poly-melamine phosphate is (1: 2) - (4: 1).
2. The composite material of claim 1, wherein the styrene-ethylene branched polydiene-styrene triblock copolymer has a loss factor tan δ peak greater than 0.8 and a peak temperature between 0 ℃ and 25 ℃.
3. Composite according to claim 1, characterized in that the relationship of the ratio between piperazine pyrophosphate and melamine phosphate is 2: 1.
4. the composite material according to any one of claims 1 to 3, wherein the thermoplastic resin is one or more of ethylene-vinyl acetate copolymer, polyolefin elastomer, ethylene-propylene-diene monomer, polyethylene and polypropylene.
5. The composite material according to any of claims 1-3, characterized in that the inorganic filler is one or several of calcium carbonate, barium sulfate and mica powder.
6. The composite material according to any one of claims 1 to 3, wherein the auxiliary agent comprises the following components in mass ratio: naphthenic oil: stearic acid: the antioxidant is (0.5-3): (0.2-1): (0.5-1).
7. A composite material according to any one of claims 1-3, characterized in that the number of layers of the layered structure is 4-64 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972415.3A CN109181087B (en) | 2018-08-24 | 2018-08-24 | Vibration-damping, flame-retardant and sound-insulating composite material for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972415.3A CN109181087B (en) | 2018-08-24 | 2018-08-24 | Vibration-damping, flame-retardant and sound-insulating composite material for rail transit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109181087A CN109181087A (en) | 2019-01-11 |
| CN109181087B true CN109181087B (en) | 2021-04-23 |
Family
ID=64919532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810972415.3A Active CN109181087B (en) | 2018-08-24 | 2018-08-24 | Vibration-damping, flame-retardant and sound-insulating composite material for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109181087B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111925624A (en) * | 2020-08-11 | 2020-11-13 | 株洲时代新材料科技股份有限公司 | High-low temperature resistant soft sound insulation material and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2835395B1 (en) * | 2013-08-09 | 2019-05-22 | Buergofol GmbH | Arrangement with one or two foils, in particular for use in a trenchless sewer rehabilitation |
| CN105034509B (en) * | 2015-06-16 | 2017-07-28 | 株洲时代新材料科技股份有限公司 | A kind of halogen-free flameproof acoustic dampening composite |
| CN106633420A (en) * | 2016-09-19 | 2017-05-10 | 广东省石油化工研究院 | Halogen-free flame-retardation thermoplastic dynamic sulfurated ethylene-propylene-diene monomer rubber/polypropylene composition and preparation method thereof |
| CN106739190B (en) * | 2016-11-24 | 2019-10-29 | 株洲时代新材料科技股份有限公司 | A kind of light-weight multi-layer complex sound insulation heat-barrier material and preparation method thereof |
-
2018
- 2018-08-24 CN CN201810972415.3A patent/CN109181087B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109181087A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109233078B (en) | Sound insulation composite material for rail transit and preparation method thereof | |
| CN111057300B (en) | Low-smoke halogen-free building wire and cable material and preparation method thereof | |
| WO2021129216A1 (en) | Pvc cable material and preparation method therefor | |
| CN105367922B (en) | The natural-crosslinked rubber material of environmental protection and energy saving and its production method | |
| CN103275385A (en) | Nuclear power halogen-free, low-smoke and flame-retardant cable sheath material with high elongation and long service life and preparation method thereof | |
| EP3394172B1 (en) | Sound insulation composition and sound insulation sheet for vehicle | |
| CN110903538A (en) | 90-DEG C cracking-resistant moisture-proof flame-retardant polyethylene cable material and preparation method thereof | |
| EP3394170B1 (en) | Sound insulation composition and sound insulation sheet for vehicle | |
| CN109627568B (en) | Polyolefin cable sheath material and preparation method thereof | |
| CN109251403B (en) | Flame-retardant sound-insulation composite material for rail transit and preparation method thereof | |
| CN105504480A (en) | Oil-resistant irradiation-crosslinking low-smoke halogen-free flame-retardant polyolefin material for locomotive wires and cables | |
| CN109111617A (en) | The fire-retardant sandwich layer of aluminium-plastic panel and aluminium-plastic panel | |
| CN112442227B (en) | Low-smoke halogen-free cable material and preparation method and application thereof | |
| CN109181087B (en) | Vibration-damping, flame-retardant and sound-insulating composite material for rail transit | |
| CN101161719B (en) | Special material for injection grade non-halogen flame-retardant wire plug and preparation method thereof | |
| CN115746443A (en) | Low-temperature-resistant low-smoke halogen-free flame-retardant cable material and preparation method thereof | |
| CN100374497C (en) | Smokeless and halogen-free expanding fire-retardant electric wire materials with thermoplastic elastomer and production thereof | |
| CN113930007A (en) | Low-smoke halogen-free flame-retardant polyolefin cable sheath material, and preparation method and application thereof | |
| CN100363415C (en) | Low smoke non-halogen fire retarding expansive polyolefins electronic wire material and preparation process thereof | |
| CN106543546A (en) | A kind of soft type oil resistant low temperature resistant non-halogen flame-retardant cable used for rolling stock and preparation method thereof | |
| CN109233082A (en) | A kind of environmental protection flame retardant acoustic material and preparation method thereof, application | |
| CN113736183B (en) | A kind of anti-seismic low-smoke halogen-free flame retardant cable sheath material and its preparation method and application | |
| CN112300480B (en) | Ceramic polyolefin and preparation method thereof | |
| CN114507389A (en) | Halogen-free flame-retardant polyolefin sheath material and preparation method thereof | |
| CN113956564A (en) | Anti-dripping low-smoke halogen-free flame-retardant polyolefin oxygen-insulating material easy to process and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |