CN108943918B - Epoxy resin-based composite material plate with acoustic impedance characteristic and manufacturing method thereof - Google Patents

Epoxy resin-based composite material plate with acoustic impedance characteristic and manufacturing method thereof Download PDF

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CN108943918B
CN108943918B CN201810838569.3A CN201810838569A CN108943918B CN 108943918 B CN108943918 B CN 108943918B CN 201810838569 A CN201810838569 A CN 201810838569A CN 108943918 B CN108943918 B CN 108943918B
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epoxy resin
composite material
acoustic impedance
glue
glass fiber
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CN108943918A (en
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雷文
黄巧生
周卓伟
钟培金
李浩宇
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Nanjing Forestry University
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Nanjing Forestry University
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    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal fibres
    • 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
    • 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
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • C08K2003/0812—Aluminium
    • 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

Abstract

The invention discloses an epoxy resin-based composite material plate with acoustic impedance characteristics and a manufacturing method thereof, and belongs to the technical field of composite materials and functional materials. The material is prepared from epoxy resin, chloroprene rubber vulcanized rubber powder, aluminum-iron alloy particles, lead powder, acetone, phthalic anhydride, glass fiber cloth and diethylenetriamine. According to the invention, the organic chloroprene rubber vulcanized rubber powder, the inorganic aluminum-iron alloy particles and the lead powder are mixed, and meanwhile, the inner layer and the outer layer are respectively coated, so that the obtained composite material has good acoustic impedance characteristic and strength characteristic by mutually overlapping the inner layer and the outer layer, the acoustic impedance gradient distribution of the composite material is more stable and uniform, and the repeatability of operation is strong; by adjusting the relative amount of filler therein, the composite material can have a range of acoustic impedance values. Compared with the materials manufactured by tungsten powder and the like on the market, the cost is lower.

Description

Epoxy resin-based composite material plate with acoustic impedance characteristic and manufacturing method thereof
Technical Field
The invention relates to an epoxy resin-based composite material plate with acoustic impedance characteristics and a manufacturing method thereof, belonging to the technical field of composite materials and functional materials.
Background
With the rapid development of economy in China, railways and road networks are developed day by day, and the railways and the roads are inevitably close to residential areas in local areas in the construction process, particularly urban subways, shuttle among urban buildings, and generate noises in the driving process of trains and automobiles, and the noises seriously affect the daily life of residents, so that proper measures must be taken to reduce noise and noise, and the use of sound insulation boards is one of the common measures. In addition, in some building interiors, partition panels are often used, and these panels should have good acoustical resistance characteristics in order to achieve good sound insulation. Although traditional wood, metal materials and the like have certain acoustic impedance characteristics, the sound insulation boards made of the traditional wood, metal materials and the like have certain limitations, for example, the wood is easy to rot, the waterproof performance is poor, trees need to be felled in the production process, and the water and soil conservation and the environmental protection are not facilitated; the metal material has high cost, high price, poor repairability, heavy weight, inconvenient transportation and installation, and the like.
Therefore, the epoxy resin-based composite material plate with acoustic impedance characteristics and the manufacturing method thereof are necessary to overcome the defects.
Disclosure of Invention
The invention provides an epoxy resin-based composite material plate with acoustic impedance characteristics and a manufacturing method thereof, and the epoxy resin-based composite material with acoustic impedance characteristics has the advantages of high reliability, wide acoustic impedance distribution range, accurate obtained acoustic impedance data, high specific strength, corrosion resistance and the like besides the using effect of acoustic impedance.
The purpose of the invention is realized by the following technical scheme:
the epoxy resin-based composite material plate with the acoustic impedance characteristic is prepared from the following raw materials in parts by weight:
Figure BSA0000167798630000011
the epoxy resin-based composite material plate with acoustic impedance characteristics is prepared by mixing epoxy resin and epoxy resin, wherein the epoxy resin is bisphenol A epoxy resin, and the epoxy value is 0.48-0.54mol/100 g.
The invention relates to an epoxy resin matrix composite material plate with acoustic impedance characteristics, wherein the particle size of chloroprene rubber vulcanized rubber powder is 40-200 nm.
The epoxy resin-based composite material plate with acoustic impedance characteristics is characterized in that the aluminum-iron alloy particles have the particle size of 0.2-0.8mm, and the addition amount of iron is 10-30%.
The invention relates to an epoxy resin matrix composite material plate with acoustic impedance characteristics, wherein the particle size of lead powder is 1-3 mu m.
The epoxy resin-based composite material plate with acoustic impedance characteristics is characterized in that the glass fiber cloth is alkali-free glass fiber cloth, and the single weight of the glass fiber cloth is 200, 300 and 450g/m2One kind of (1).
The invention discloses a method for manufacturing an epoxy resin matrix composite material plate with acoustic impedance characteristics, which comprises the following steps:
(1) weighing epoxy resin, chloroprene rubber vulcanized rubber powder, aluminum-iron alloy particles, lead powder, acetone, phthalic anhydride, glass fiber cloth and diethylenetriamine in parts by weight:
Figure BSA0000167798630000021
(2) adding the epoxy resin and acetone into a container after metering, mixing for 10-20min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 20-30 ℃ for 10-20min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 5-15min at 40-60 ℃ to obtain an epoxy resin-based composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with the acoustic impedance characteristic, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out die pressing for 10-20min at room temperature under the pressure of 0.8-1.2MPa, then heating to 80 ℃, carrying out die pressing for 10-30min under the pressure of 2-6MPa, then heating to 100 ℃, and carrying out die pressing for 30-60min under the pressure of 10-20 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
According to the epoxy resin-based composite material plate with the acoustic impedance characteristic, disclosed by the invention, the organic chloroprene rubber vulcanized rubber powder, the inorganic aluminum-iron alloy particles and the lead powder are mixed, meanwhile, the inner layer and the outer layer are respectively coated, and the inner layer and the outer layer are mutually overlapped, so that the obtained composite material is ensured to have good acoustic impedance characteristic and strength characteristic, the acoustic impedance gradient distribution of the composite material is more stable and uniform, and the operation repeatability is strong; by adjusting the relative amount of filler therein, the composite material can have a range of acoustic impedance values. Compared with the materials manufactured by tungsten powder and the like on the market, the cost is lower.
Detailed Description
The following examples are provided to specifically describe the epoxy resin-based composite material plate having acoustic impedance characteristics and the method for manufacturing the same according to the present invention.
Example 1:
(1) weighing the following components in parts by weight of epoxy resin (the epoxy value is 0.51mol/100g), chloroprene rubber vulcanized rubber powder (the particle size is 120nm), aluminum-iron alloy particles (the particle size is 0.5mm, the adding amount of iron is 20%), lead powder (the particle size is 2 mu m), acetone, phthalic anhydride and glass fiber cloth (the single weight is 300 g/m)2) And diethylenetriamine:
Figure BSA0000167798630000031
(2) adding the epoxy resin and acetone into a container after metering, mixing for 15min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 25 ℃ for 15min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 10min at 50 ℃ to obtain an epoxy resin matrix composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with acoustic impedance characteristics, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out die pressing for 15min at room temperature under the pressure of 1MPa, then heating to 80 ℃, carrying out die pressing for 20min under the pressure of 4MPa, heating to 100 ℃, and carrying out die pressing for 45min under the pressure of 15 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
Example 2:
(1) weighing the following components in parts by weight of epoxy resin (the epoxy value is 0.48mol/100g), chloroprene rubber vulcanized rubber powder (the particle size is 40nm), aluminum-iron alloy particles (the particle size is 0.2mm, the adding amount of iron is 10%), lead powder (the particle size is 1 mu m), acetone, phthalic anhydride and glass fiber cloth (the single weight is 200 g/m)2) And diethylenetriamine:
Figure BSA0000167798630000041
(2) adding the epoxy resin and acetone into a container after metering, mixing for 10min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 20 ℃ for 10min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 5min at 40 ℃ to obtain an epoxy resin matrix composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with acoustic impedance characteristics, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out die pressing at room temperature for 10min under the pressure of 0.8MPa, then heating to 80 ℃, carrying out die pressing for 10min under the pressure of 2MPa, heating to 100 ℃, and carrying out die pressing for 30min under the pressure of 10 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
Example 3:
(1) weighing the following components in parts by weight of epoxy resin (the epoxy value is 0.54mol/100g), chloroprene rubber vulcanized rubber powder (the particle size is 200nm), aluminum-iron alloy particles (the particle size is 0.8mm, the adding amount of iron is 30%), lead powder (the particle size is 3 mu m), acetone, phthalic anhydride and glass fiber cloth (the single weight is 450 g/m)2) And diethylenetriamine:
Figure BSA0000167798630000051
(2) adding the epoxy resin and acetone into a container after metering, mixing for 20min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 30 ℃ for 20min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 15min at 60 ℃ to obtain an epoxy resin matrix composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with acoustic impedance characteristics, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out mould pressing at room temperature for 20min under the pressure of 1.2MPa, then heating to 80 ℃, carrying out mould pressing for 30min under the pressure of 6MPa, heating to 100 ℃, and carrying out mould pressing for 60min under the pressure of 20 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
Example 4:
(1) weighing the following components in parts by weight of epoxy resin (the epoxy value is 0.48mol/100g), chloroprene rubber vulcanized rubber powder (the particle size is 120nm), aluminum-iron alloy particles (the particle size is 0.8mm, the adding amount of iron is 10%), lead powder (the particle size is 2 mu m), acetone, phthalic anhydride and glass fiber cloth (the single weight is 450 g/m)2) And diethylenetriamine:
Figure BSA0000167798630000061
(2) adding the epoxy resin and acetone into a container after metering, mixing for 15min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 30 ℃ for 10min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 15min at 50 ℃ to obtain an epoxy resin matrix composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with acoustic impedance characteristics, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out die pressing for 15min at room temperature under the pressure of 0.8MPa, then heating to 80 ℃, carrying out die pressing for 10min under the pressure of 6MPa, then heating to 100 ℃, and carrying out die pressing for 60min under the pressure of 15 MPa;
(12) and opening the press, and uncovering the PE thin molds on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
Example 5:
(1) weighing the following components in parts by weight of epoxy resin (the epoxy value is 0.51mol/100g), chloroprene rubber vulcanized rubber powder (the particle size is 200nm), aluminum-iron alloy particles (the particle size is 0.2mm, the adding amount of iron is 20%), lead powder (the particle size is 3 mu m), acetone, phthalic anhydride and glass fiber cloth (the single weight is 200 g/m)2) And diethylenetriamine:
Figure BSA0000167798630000071
(2) adding the epoxy resin and acetone into a container after metering, mixing for 20min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 20 ℃ for 15min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 5min at 60 ℃ to obtain an epoxy resin matrix composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with acoustic impedance characteristics, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out die pressing for 20min at room temperature under the pressure of 1MPa, then heating to 80 ℃, carrying out die pressing for 20min under the pressure of 2MPa, heating to 100 ℃, and carrying out die pressing for 30min under the pressure of 20 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
Example 6:
(1) weighing the following components in parts by weight of epoxy resin (the epoxy value is 0.54mol/100g), chloroprene rubber vulcanized rubber powder (the particle size is 40nm), aluminum-iron alloy particles (the particle size is 0.5mm, the adding amount of iron is 30%), lead powder (the particle size is 1 mu m), acetone, phthalic anhydride and glass fiber cloth (the single weight is 300 g/m)2) And diethylenetriamine:
Figure BSA0000167798630000081
(2) adding the epoxy resin and acetone into a container after metering, mixing for 10min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 25 ℃ for 20min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 10min at 40 ℃ to obtain an epoxy resin matrix composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with acoustic impedance characteristics, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out mould pressing at room temperature for 10min under the pressure of 1.2MPa, then heating to 80 ℃, carrying out mould pressing for 30min under the pressure of 4MPa, heating to 100 ℃, and carrying out mould pressing for 45min under the pressure of 10 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
Example 7:
(1) weighing the following components in parts by weight of epoxy resin (the epoxy value is 0.54mol/100g), chloroprene rubber vulcanized rubber powder (the particle size is 200nm), aluminum-iron alloy particles (the particle size is 0.2mm, the adding amount of iron is 10%), lead powder (the particle size is 2 mu m), acetone, phthalic anhydride and glass fiber cloth (the single weight is 300 g/m)2) And diethylenetriamine:
Figure BSA0000167798630000082
Figure BSA0000167798630000091
(2) adding the epoxy resin and acetone into a container after metering, mixing for 15min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 30 ℃ for 20min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 5min at 40 ℃ to obtain an epoxy resin matrix composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with acoustic impedance characteristics, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out mould pressing at room temperature for 10min under the pressure of 1.2MPa, then heating to 80 ℃, carrying out mould pressing for 20min under the pressure of 4MPa, heating to 100 ℃, and carrying out mould pressing for 30min under the pressure of 20 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
Example 8:
(1) weighing the following components in parts by weight of epoxy resin (the epoxy value is 0.52mol/100g), chloroprene rubber vulcanized rubber powder (the particle size is 140nm), aluminum-iron alloy particles (the particle size is 0.7mm, the adding amount of iron is 18 percent), lead powder (the particle size is 1.3 mu m), acetone, phthalic anhydride and glass fiber cloth (the single weight is 300 g/m)2) And diethylenetriamine:
Figure BSA0000167798630000092
Figure BSA0000167798630000101
(2) adding the epoxy resin and acetone into a container after metering, mixing for 12min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 26 ℃ for 13min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 11min at the temperature of 45 ℃ to obtain an epoxy resin matrix composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with acoustic impedance characteristics, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out die pressing at room temperature for 17min under the pressure of 0.9MPa, then heating to 80 ℃, carrying out die pressing for 19min under the pressure of 5MPa, heating to 100 ℃, and carrying out die pressing for 50min under the pressure of 17 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
The effect of example 1 is described below by the following tests, and the test results are as follows:
density of the sample: 3.668g/cm3Acoustic impedance value: 12.76MRayl, sound attenuation: 5.22dB/cm MHz, bending strength: 68.26MPa, flexural modulus: 2.35 GPa.
The detection result shows that the epoxy resin-based composite material plate with the acoustic impedance characteristic obtained by the embodiment has moderate density, good acoustic impedance and acoustic attenuation performance and excellent mechanical property, and can be used as a sound insulation plate.

Claims (7)

1. The epoxy resin-based composite material plate with acoustic impedance characteristics is characterized by being prepared from the following raw materials in parts by weight:
Figure FSB0000189219060000011
2. the epoxy resin-based composite material plate with acoustic impedance characteristics of claim 1, wherein the epoxy resin is bisphenol A epoxy resin, and the epoxy value is 0.48-0.54mol/100 g.
3. The epoxy resin-based composite material plate with acoustic impedance characteristics of claim 1, wherein the particle size of the neoprene vulcanized rubber powder is 40-200 nm.
4. The epoxy resin-based composite material plate with acoustic impedance characteristics of claim 1, wherein the aluminum-iron alloy particles have a particle size of 0.2-0.8mm, and wherein the amount of iron added is 10-30%.
5. The epoxy resin-based composite material plate with acoustic impedance characteristics as claimed in claim 1, wherein said lead powder has a particle size of 1-3 μm.
6. The epoxy resin-based composite material plate with acoustic impedance characteristics of claim 1, wherein the glass fiber cloth is alkali-free glass fiber cloth with a single weight of 200, 300, 450g/m2One kind of (1).
7. The method of claim 1, including the steps of:
(1) weighing epoxy resin, chloroprene rubber vulcanized rubber powder, aluminum-iron alloy particles, lead powder, acetone, phthalic anhydride, glass fiber cloth and diethylenetriamine in parts by weight:
Figure FSB0000189219060000012
(2) adding the epoxy resin and acetone into a container after metering, mixing for 10-20min by using an electric stirrer to obtain diluted epoxy resin, and dividing the diluted epoxy resin into two parts according to the mass ratio of 8: 2, wherein the two parts are respectively marked as EA and EB;
(3) sequentially adding the measured aluminum-iron alloy particles, lead powder and diethylenetriamine into EA while stirring, and vacuumizing to remove bubbles to obtain a resin glue solution A;
(4) adding the resin glue solution A into a glue dipping tank A;
(5) adding the measured chloroprene rubber vulcanized rubber powder and phthalic anhydride into EB (Epstein-Barr), stirring while adding, and simultaneously vacuumizing to remove bubbles to obtain a resin rubber solution B;
(6) adding the resin glue solution B into a glue dipping tank B;
(7) enabling the glass fiber cloth to pass through a glue dipping tank A at a certain speed to be dipped with a resin glue solution A, scraping glue by a glue scraping device, and adjusting the tension of the scraping glue to ensure that the resin glue solution A is uniformly coated on the glass fiber cloth to obtain a primary coated glass fiber cloth;
(8) precuring the primary coated glass fiber cloth at 20-30 ℃ for 10-20min to obtain precured primary coated glass fiber cloth;
(9) enabling the pre-cured primary coated glass fiber cloth to pass through a glue dipping tank B at a certain speed to be dipped with a resin glue solution B, scraping glue by a glue scraping device, adjusting the tension of the scraping glue to ensure that the resin glue solution B is uniformly coated on the pre-cured primary coated glass fiber cloth, and then pre-curing for 5-15min at 40-60 ℃ to obtain an epoxy resin-based composite material base material with acoustic impedance characteristics;
(10) taking a PE film, laying the PE film on an operation table, cutting an epoxy resin matrix composite material base material with acoustic impedance characteristics according to the area of an effective pressing plate of a press, superposing and laying the cut epoxy resin matrix composite material base material with acoustic impedance characteristics on the film layer by layer, and finally covering another PE film on the epoxy resin matrix composite material base material with acoustic impedance characteristics;
(11) placing the epoxy resin-based composite material base material with the acoustic impedance characteristic, of which the upper surface and the lower surface are both covered with the PE films, on a press, carrying out die pressing for 10-20min at room temperature under the pressure of 0.8-1.2MPa, then heating to 80 ℃, carrying out die pressing for 10-30min under the pressure of 2-6MPa, then heating to 100 ℃, and carrying out die pressing for 30-60min under the pressure of 10-20 MPa;
(12) and opening the press, and uncovering the PE films on the upper surface and the lower surface of the composite material plate to obtain the epoxy resin-based composite material plate with the acoustic impedance characteristic.
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JPH11286076A (en) * 1998-04-02 1999-10-19 Yokohama Rubber Co Ltd:The Rubber composite material and its production
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CN106042524A (en) * 2016-06-14 2016-10-26 中车青岛四方车辆研究所有限公司 Plate material, multilayer composite plate material with plate material, and preparation method of plate material
CN107857973A (en) * 2017-09-30 2018-03-30 大中（湖北）机械科技有限公司 A kind of organic composite material for chemical machinery

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11286076A (en) * 1998-04-02 1999-10-19 Yokohama Rubber Co Ltd:The Rubber composite material and its production
WO2003046099A1 (en) * 2001-11-30 2003-06-05 Auckland Uniservices Limited Water-based adhesive compositions
CN102179978A (en) * 2011-02-15 2011-09-14 中国船舶重工集团公司第七二五研究所 Sandwich damping composite material
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