CN104448192A - Preparation method of intelligent magnetic noise-reducing polyurethane foam - Google Patents
Preparation method of intelligent magnetic noise-reducing polyurethane foam Download PDFInfo
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- CN104448192A CN104448192A CN201410649702.2A CN201410649702A CN104448192A CN 104448192 A CN104448192 A CN 104448192A CN 201410649702 A CN201410649702 A CN 201410649702A CN 104448192 A CN104448192 A CN 104448192A
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6611—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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- C08G18/16—Catalysts
- C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C—CHEMISTRY; METALLURGY
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- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
Abstract
The invention belongs to the technical field of environmental protection and particularly relates to a preparation method of intelligent magnetic noise-reducing polyurethane foam. The preparation method comprises the following specific steps: treating the surface of carbonyl iron powder with a silane coupling agent; mechanically dispersing and prepolymerizing treated carbonyl iron powder, polyhydric alcohol and a chain extender; adding a crosslinking agent, a surfactant, a catalyst and isocyanate, rapidly stirring and pouring; and under the action of an external magnetic field, enabling carbonyl iron particles to form chain structures and be arranged in a foam skeleton and foaming at room temperature to produce anisotropic magnetic polyurethane foam. The entire preparation process has specific flow and is relatively simple and convenient to operate. The magnetic polyurethane foam is prepared by a one-step foaming process, the product combines the advantages of magnetic particles and polyurethane foam, has a flexible damping characteristic and is conductive to weakening the sound so that controllable acoustic and mechanical properties are achieved and the magnetic polyurethane foam can be used as a sound-absorption noise-reducing material. The magnetic polyurethane foam can be applied in fields such as civil use, automobiles and aerospace and has higher application values.
Description
Technical field
The invention belongs to environmental protection technical field, specifically relate to a kind of preparation method of intelligent magnetic noise reduction polyurethane foam.
Background technology
Along with the development of national economy, national defence and society, sound pollution and be controlled in order to key issue urgently to be resolved hurrily, wherein, flexible media and polymer foams play key player.Traditional polymer foams, if urethane, polyvinyl chloride and rubber are owing to having good sound absorption effectiveness in vibration suppression, has been widely used in the fields such as aerospace, national defense and military, building; But these sound-absorbing materials are isotropic materials, in the hole that its magnetic particle is immersed in open celled foam at random or space, the structure of magnetic-particle is loose connection, they are very faint to the response in magnetic field, sound wave in centering, high-frequency range is effective, and for the low-frequency sound wave being less than 500Hz, sound absorbing capabilities is poor, far can not meet the needs of multiple application, thus limit its range of application.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of stable performance, sound wave controlled wide frequency range, applied range, can reversibly, quickly respond to the change of foreign field, and have the preparation method of the intelligent magnetic noise reduction polyurethane foam of the two-fold advantage of passive and active noise controlling concurrently.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of preparation method of intelligent magnetic noise reduction polyurethane foam, comprises the following steps:
(1) surface treatment of magnetic-particle: methyl alcohol and silane coupling agent (KH570) are mixed with the alcoholic solution of 0.5 ~ 2.0%, regulate the pH value of alcoholic solution between 4 ~ 5 by acetic acid, the magnetic-particle of 200g is impregnated in the alcoholic solution prepared, mechanical stirring 1h, dry 10 ~ 30min under 80 ~ 120 DEG C of vacuum conditions, obtain the magnetic-particle of 1 part of surface through KH570 process, in order to stand-by;
(2) preparation of intelligent magnetic noise reduction polyurethane foam: micron-size spherical magnetic-particle good for 5 ~ 10 parts of surface treatments and the polyvalent alcohol of 100 parts are carried out liquid state and mixes, then 1 ~ 3 part of chainextender and 1 ~ 3 part of linking agent is added, after even by magnetic agitation, add 1.5 ~ 7.5 parts of whipping agents again, 1 ~ 3 part of tensio-active agent and 0.1 ~ 1.0 part of catalyzer, with excessive 26 ~ 60 parts of isocyanic ester hybrid reactions, to pour in mould after the speed rapid stirring 5min of 300rad/min, under outside magnetic field effect, carbonyl iron particles forms chain-like structure and is arranged in foam framework, room temperature foaming 20 ~ 30min, slaking 2 ~ 3h at 65 ~ 85 DEG C, generate anisotropic magnetic polyurethane foam,
Wherein said share is mass parts.
Described micron-size spherical magnetic-particle is 5 microns.
Described magnetic-particle comprises carbonyl iron dust or carbonyl nickel powder.
Described polyvalent alcohol comprises polyoxypropylene diols-2000, polyoxypropylene triol-3000, polypropylene glycol, polyoxyethylene glycol or polytetramethylene glycol.
Described isocyanic ester comprises diphenylmethanediisocyanate, tolylene diisocyanate.
Described chainextender comprises BDO, ethylene glycol or glycol ether.
Described linking agent comprises glycerine.
Described catalyzer comprises triethylenediamine.
Described tensio-active agent includes organic silicon surface active agent.
Described whipping agent comprises water, acetone, ethanol, normal heptane, Skellysolve A, iso-pentane, the chloro-1-fluoroethane of 1,1-bis-.
Magnetic foamed polymer is a kind of Multifunction intelligent material, compared with prior art, utilize new synthesis technique, in the curing process, allow under magnetic particle outside magnetic field and form chain-like structure, these chains lock to put in place and are embedded in the solid skeletal of foam materials in the chemically crosslinked process of elastomeric matrices, form the vesicular structure that chain is orderly, material is made to have the characteristic of regulatable mechanical property and physical structure change, present extremely strong magnetostriction and mangneto viscoelastic effect, the viscous-elastic behaviour of magnetic foam materials and the dissemination of structural distortion to sound wave play an important role, therefore the mechanical characteristic of magnetic field change foam materials and physical structure is utilized to regulate and control sonic transmissions, reach the object of ACTIVE CONTROL.Due to acoustics and the mechanics controllable characteristics of magnetic foamed polymer uniqueness, add its lightweight and flexible characteristic, be easy to be applied in complicated structure or space and control noise leakage that vibration source causes and pollution, compared with traditional vibration and noise reducing material, there is certain superiority.In addition, the micropore of magnetic foam and magnetic particle regular assembling can form the porous media material of periodic structure in solid skeletal.
Therefore, magnetic foamed polymer can not only overcome the intrinsic shortcoming of magnetorheological foam, and the present invention also tool has the following advantages:
1) orientation of magnetic-particle, Embedded arrangement, have stable process based prediction model;
2) there is controlled and repeatably acoustics and mechanical property, can reversibly, quickly respond to the change of foreign field;
3) have passive and two-fold advantage that is active noise controlling concurrently, the control to sound wave can be realized within the scope of wider frequency territory.
The invention has the beneficial effects as follows: there is stable performance, sound wave controlled wide frequency range, applied range, can reversibly, quickly respond to the change of foreign field, and have concurrently passive and active noise controlling advantage.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, and following each embodiment, only for illustration of the present invention, does not limit the present invention.
Embodiment 1:
A preparation method for intelligent magnetic noise reduction polyurethane foam, comprises the following steps:
(1) surface treatment of carbonyl iron dust:
Take 2g KH570,88.2g methyl alcohol, 9.8g deionized water in 500ml beaker, preparation massfraction is the alcoholic solution of 2.0%, the pH value being regulated alcoholic solution by acetic acid is 4, the carbonyl iron dust of load weighted 200g is impregnated in the alcoholic solution prepared, mechanical stirring 1h, dry 30min under 110 DEG C of vacuum conditions, obtains the carbonyl iron dust of 1 part of surface through KH570 process, in order to stand-by.
(2) preparation of intelligent magnetic noise reduction polyurethane foam:
By the spherical carbonyl iron powder of 5um level good for 5 parts of surface treatments and the polyvalent alcohol of fixed volume, namely 100 parts of polyoxypropylene diols-2000 carry out liquid state mixing, then 2 part 1 is added, the agent of 4-chain expansion of succinic acid and 2 parts of glycerine are as linking agent, after magnetic agitation is even, add 3 parts of Skellysolve As again as whipping agent, 1.5 parts of organic silicon surfactants and 0.5 part of triethylenediamine are as catalyzer, with excessive 30 parts of isocyanic ester hybrid reactions, pour in mould after rapid stirring 5min under the condition of 300rad/min, under outside magnetic field effect, carbonyl iron particles forms chain-like structure and is arranged in foam framework, room temperature foaming 30min, slaking 2.5h at 80 DEG C, generate anisotropic magnetic polyurethane foam.
Embodiment 2:
A preparation method for intelligent magnetic noise reduction polyurethane foam, comprises the following steps:
(1) surface treatment of carbonyl iron dust:
Take 1g KH570,89.1g methyl alcohol, 9.9g deionized water in 500ml beaker, preparation massfraction is the alcoholic solution of 1.0%, the pH value being regulated alcoholic solution by acetic acid is 4, the carbonyl iron dust of load weighted 200g is impregnated in the alcoholic solution prepared, mechanical stirring 1h, dry 30min under 110 DEG C of vacuum conditions, obtains the carbonyl iron dust of a surface through KH570 process, in order to stand-by.
(2) preparation of intelligent magnetic noise reduction polyurethane foam:
By the spherical carbonyl iron powder of 5um level good for 5 parts of surface treatments and the polyvalent alcohol of fixed volume, namely 100 parts of polypropylene glycols carry out liquid state mixing, then 2 part 1 is added, the agent of 4-chain expansion of succinic acid and 2 parts of glycerine are as linking agent, after magnetic agitation is even, add 2.5 parts of Skellysolve As again as whipping agent, 1.5 parts of organic silicon surfactants and 0.5 part of triethylenediamine are as catalyzer, with excessive 30 parts of isocyanic ester hybrid reactions, pour in mould after rapid stirring 5min under the condition of 300rad/min, under outside magnetic field effect, carbonyl iron particles forms chain-like structure and is arranged in foam framework, room temperature foaming 25min, slaking 3h at 80 DEG C, generate anisotropic magnetic polyurethane foam.
Embodiment 3:
A preparation method for intelligent magnetic noise reduction polyurethane foam, comprises the following steps:
(1) surface treatment of carbonyl iron dust:
Take 2g KH570,88.2g methyl alcohol, 9.8g deionized water in 500ml beaker, preparation massfraction is the alcoholic solution of 2.0%, the pH value being regulated alcoholic solution by acetic acid is 5, the carbonyl iron dust of load weighted 200g is impregnated in the alcoholic solution prepared, mechanical stirring 1h, dry 30min under 110 DEG C of vacuum conditions, obtains the carbonyl iron dust of 1 part of surface through KH570 process, in order to stand-by.
(2) preparation of intelligent magnetic noise reduction polyurethane foam:
By the spherical carbonyl iron powder of 5um level good for 10 parts of surface treatments and the polyvalent alcohol of fixed volume, namely 100 parts of polyoxypropylene triol-3000 carry out liquid state mixing, then 2 part 1 is added, the agent of 4-chain expansion of succinic acid and 2 parts of glycerine are as linking agent, after magnetic agitation is even, add 2 parts of Skellysolve As again as whipping agent, 1.5 parts of organic silicon surfactants and 0.5 part of triethylenediamine are as catalyzer, with excessive 30 parts of isocyanic ester hybrid reactions, pour in mould after rapid stirring 5min under the condition of 300rad/min, under outside magnetic field effect, carbonyl iron particles forms chain-like structure and is arranged in foam framework, room temperature foaming 30min, slaking 2.5h at 80 DEG C, generate anisotropic magnetic polyurethane foam.
Embodiment 4:
A preparation method for intelligent magnetic noise reduction polyurethane foam, comprises the following steps:
(1) surface treatment of carbonyl iron dust:
Take 1g KH570,89.1g methyl alcohol, 9.9g deionized water in 500ml beaker, preparation massfraction is the alcoholic solution of 1.0%, the pH value being regulated alcoholic solution by acetic acid is 5, the carbonyl iron dust of load weighted 200g is impregnated in the alcoholic solution prepared, mechanical stirring 1h, dry 30min under 110 DEG C of vacuum conditions, obtains the carbonyl iron dust of 1 part of surface through KH570 process, in order to stand-by.
(2) preparation of intelligent magnetic noise reduction polyurethane foam:
By the spherical carbonyl iron powder of 5um level good for 10 parts of surface treatments and the polyvalent alcohol of fixed volume, namely 100 parts of polypropylene glycols carry out liquid state mixing, then 2 part 1 is added, the agent of 4-chain expansion of succinic acid and 2 parts of glycerine are as linking agent, after magnetic agitation is even, add 2.5 parts of Skellysolve As again as whipping agent, 1.5 parts of organic silicon surfactants and 0.5 part of triethylenediamine are as catalyzer, with excessive 30 parts of isocyanic ester hybrid reactions, pour in mould after rapid stirring 5min under the condition of 300rad/min, under outside magnetic field effect, carbonyl iron particles forms chain-like structure and is arranged in foam framework, room temperature foaming 25min, slaking 3h at 80 DEG C, generate anisotropic magnetic polyurethane foam.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (10)
1. a preparation method for intelligent magnetic noise reduction polyurethane foam, comprises the following steps:
(1) surface treatment of magnetic-particle: methyl alcohol and silane coupling agent (KH570) are mixed with the alcoholic solution of 0.5 ~ 2.0%, regulate the pH value of alcoholic solution between 4 ~ 5 by acetic acid, the magnetic-particle of 200g is impregnated in the alcoholic solution prepared, mechanical stirring 1h, dry 10 ~ 30min under 80 ~ 120 DEG C of vacuum conditions, obtain the magnetic-particle of 1 part of surface through KH570 process, in order to stand-by;
(2) preparation of intelligent magnetic noise reduction polyurethane foam: micron-size spherical magnetic-particle good for 5 ~ 10 parts of surface treatments and the polyvalent alcohol of 100 parts are carried out liquid state and mixes, then 1 ~ 3 part of chainextender and 1 ~ 3 part of linking agent is added, after even by magnetic agitation, add 1.5 ~ 7.5 parts of whipping agents again, 1 ~ 3 part of tensio-active agent and 0.1 ~ 1.0 part of catalyzer, with excessive 26 ~ 60 parts of isocyanic ester hybrid reactions, to pour in mould after the speed rapid stirring 5min of 300rad/min, under outside magnetic field effect, carbonyl iron particles forms chain-like structure and is arranged in foam framework, room temperature foaming 20 ~ 30min, slaking 2 ~ 3h at 65 ~ 85 DEG C, generate anisotropic magnetic polyurethane foam,
Wherein said share is mass parts.
2. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1, is characterized in that: described micron-size spherical magnetic-particle is 5 microns.
3. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1 and 2, is characterized in that: described magnetic-particle comprises carbonyl iron dust or carbonyl nickel powder.
4. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1, is characterized in that: described polyvalent alcohol comprises polyoxypropylene diols-2000, polyoxypropylene triol-3000, polypropylene glycol, polyoxyethylene glycol or polytetramethylene glycol.
5. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1, is characterized in that: described isocyanic ester comprises diphenylmethanediisocyanate, tolylene diisocyanate.
6. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1, is characterized in that: described chainextender comprises BDO, ethylene glycol or glycol ether.
7. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1, is characterized in that: described linking agent comprises glycerine.
8. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1, is characterized in that: described catalyzer comprises triethylenediamine.
9. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1, is characterized in that: described tensio-active agent includes organic silicon surface active agent.
10. the preparation method of intelligent magnetic noise reduction polyurethane foam according to claim 1, is characterized in that: described whipping agent comprises water, acetone, ethanol, normal heptane, Skellysolve A, iso-pentane, the chloro-1-fluoroethane of 1,1-bis-.
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| CN111269456A (en) * | 2020-03-06 | 2020-06-12 | 郑州峰泰纳米材料有限公司 | Melamine sponge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220821A (en) * | 2016-08-23 | 2016-12-14 | 中国科学院合肥物质科学研究院 | A kind of nano combined foam of multifunctional light and its preparation method and application |
| CN106220821B (en) * | 2016-08-23 | 2019-08-09 | 中国科学院合肥物质科学研究院 | A kind of nano combined foam of multifunctional light and its preparation method and application |
| CN110603275A (en) * | 2017-04-10 | 2019-12-20 | 巴斯夫欧洲公司 | Dispersion of magnetizable particles in polyol, preparation and use thereof |
| CN110603275B (en) * | 2017-04-10 | 2022-12-27 | 巴斯夫欧洲公司 | Dispersion of magnetizable particles in polyol, preparation and use thereof |
| CN108252430A (en) * | 2018-01-17 | 2018-07-06 | 重庆邮电大学 | A kind of intelligent sound panel based on magnetic foamed polymer |
| CN111269456A (en) * | 2020-03-06 | 2020-06-12 | 郑州峰泰纳米材料有限公司 | Melamine sponge |
| CN111269456B (en) * | 2020-03-06 | 2022-11-22 | 郑州峰泰纳米材料有限公司 | Melamine sponge |
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| CN104448192B (en) | 2017-09-15 |
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