CN104877336B - A kind of imide-urethane Quito function and service damping material and preparation method thereof - Google Patents
A kind of imide-urethane Quito function and service damping material and preparation method thereof Download PDFInfo
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- CN104877336B CN104877336B CN201510229536.5A CN201510229536A CN104877336B CN 104877336 B CN104877336 B CN 104877336B CN 201510229536 A CN201510229536 A CN 201510229536A CN 104877336 B CN104877336 B CN 104877336B
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Abstract
The invention discloses a kind of imide-urethane Quito function and service damping material and preparation method thereof.Its preparation method comprises the following steps：1) dihydric alcohol, pyromellitic acid dianhydride, catalyst and filler are mixed, obtains mixture；Then diisocyanate and chain extender mixing are sequentially added into the mixture, obtains thermoplastic polyurethane acid imide compound material；2) thermoplastic polyurethane acid imide compound material is cured, is then pressed into sheet material；3) sheet material is irradiated, that is, obtains imide-urethane Quito function and service damping material.The present invention adds the bromo-ether of reactive flame retardant four, is prepared for having concurrently the multi-functional composite damping material of heat-proof quality, ballistic performance, shielding properties and fire resistance using Radiation Crosslinking Method using thermoplasticity PUI as base material；Preparation method is fairly simple, and operation is more convenient, is advantageous to large-scale production.
Description
Technical field
The present invention relates to a kind of imide-urethane Quito function and service damping material and preparation method thereof, belong to macromolecule
Material Field.
Background technology
Vibration damping and noise reducing technology is one of method of effective control vibration and construct noise, increasingly becomes industry at present
One hot research topic of developed country.Damping material is that one kind can absorb vibration mechanical energy and convert it to heat energy, electricity
Can, the energy of magnetic energy or other forms and a kind of functional material lost.Polymeric material has preferably because of its viscoplasticity
Damping vibration attenuation effect, its damping material is widely used in many fields, including satellite, aircraft, naval vessel, auto industry
Deng.
Polyurethane (PU) be on macromolecular main chain containing carbamate groups (- NHCOO-) or urea groups (-
NHCOONH-) the polymer general name of construction unit.Polyurethane is as the advantage of damping material can be by adjusting soft and hard segments
Ratio and obtain wide temperature range, high performance damping material.Also, also develop to improve the temperature tolerance of polyurethane damping material
Imide-urethane (Pulythane-imide, abbreviation PUI) damping material.PUI is that PU and polyimides (PI) mutually ooze
Thoroughly, cross development and a kind of novel polymer material for being formed.PUI be structurally characterized in that on its strand both containing PU it is soft,
Hard segment structure and the imide structure containing PI, that is to say, that it is this that PUI materials had both maintained the soft of polyurethane, hard segment structure
Agent structure, but polyimides segment is included in its hard segment or/and soft chain segment, thus PUI materials both remained substantially it is poly-
The premium properties of urethane, the characteristics such as high fire-retardance and the high temperature resistant of polyimides are absorbed again.
In addition, with the continuous development of modern industry, the demand of damping material is also increasingly increased, using new method, base
Turn into a big focus of current this respect research in new ideas development of new damping material, wherein, multi-functional composite damping material
Material is an important developing direction.
The content of the invention
It is an object of the invention to provide a kind of imide-urethane Quito function and service damping material and preparation method thereof, sheet
Invention preparation method is simple, and damping capacity is good.
The preparation method of imide-urethane Quito function and service damping material provided by the invention, comprises the following steps：
1) dihydric alcohol, pyromellitic acid dianhydride, catalyst and filler are mixed, obtains mixture；Then add successively into the mixture
Enter diisocyanate and chain extender mixing, obtain thermoplastic polyurethane acid imide compound material；
2) thermoplastic polyurethane acid imide compound material is cured, is then pressed into sheet material；
3) sheet material is irradiated, that is, obtains imide-urethane Quito function and service damping material.
Above-mentioned method, the dihydric alcohol can be PCDL, PTMEG, polyester-diol；
The catalyst can be stannous octoate, dibutyltin dilaurate；
The filler can be boron carbide, SiO2At least one of aeroge, aramid fiber short fibre and four bromo-ethers；
The diisocyanate can be 4,4 '-dicyclohexyl methyl hydride -4,4,-diisocyanate (abbreviation HMDI) or 4,4 ' -
Diphenyl methane -4,4,-diisocyanate (abbreviation MDI)；
The chain extender can be 1,4- butanediols, ethylene glycol, propane diols, diglycol.
Above-mentioned method, the dihydric alcohol, the pyromellitic acid dianhydride, the mass ratio of catalyst and filler can be 100：10
~25：0.2~2.0：55.8~178, concretely 100：16：0.5：112；
The mass ratio of the dihydric alcohol, the diisocyanate and the chain extender can be 100：23~47：1.0~5.0,
Concretely 100：36：3.3.
Above-mentioned method, in step 1), add the diisocyanate and the chain extender is stirred to viscosity increase
When, you can stop stirring.
Above-mentioned method, in step 2) it is described be pressed into sheet material before also include de-bubbled the step of；
The de-bubbled carries out vacuumizing degassing using vacuum drying oven, and the temperature of the de-bubbled can be 80~130 DEG C, tool
Body can be 80 DEG C.
The sheet material is pressed into the present invention and uses compression-moulding methods.
Above-mentioned method, in step 2), the temperature of the curing can be 60~130 DEG C, concretely 80 DEG C；
The time of the curing can be 3~10h, concretely 8h.
Above-mentioned method, the thickness of the sheet material can be 2mm~20mm, concretely 4mm.
Above-mentioned method, in step 3), the irradiation is irradiated using gamma-rays, specific to use60Co gamma-rays irradiation；
The absorbed dose of radiation of the irradiation can be 40~320kGy, concretely 40kGy, 80kGy, 160kGy or 320kG；
The absorbed dose rate of the irradiation can be 1~20kGy/h, concretely 10kGy/h.
In the present invention, following components can be specifically used in step 1)：The dihydric alcohol is PCDL；The catalysis
Agent is stannous octoate；Pyromellitic acid dianhydride；The filler is boron carbide, SiO2Aeroge, aramid fiber short fibre and four bromo-ethers；It is described
Diisocyanate is 4,4 '-dicyclohexyl methyl hydride -4,4,-diisocyanate；The chain extender is 1,4- butanediols；
Wherein described filler is made up of the component of following mass parts：The mass parts of boron carbide 5~15, the SiO2Airsetting
The mass parts of glue 0.5~3.0, the mass parts of aramid fiber short fibre 0.3~10, the four bromo-ethers 50-150 mass parts.
Present invention also offers imide-urethane Quito function and service damping material prepared by above-mentioned method.
In the present invention, thermoplastic polyurethane acid imide is prepared for first, in the thermoplastic polyurethane acid imide of preparation
When add the bromo-ether of fire retardant four；Then utilize the thermoplastic polyurethane acid imide thermoplasticity hot briquetting (sheet material), into
Irradiated on the basis of type, the thermoplastic polyurethane acid imide in sheet material is crosslinked instead with the bromo-ether of fire retardant four
Should, obtain that there is multi-functional imide-urethane Quito function and service damping material of the present invention.
The present invention has advantages below：
(1) using thermoplasticity PUI as base material, it is prepared for having concurrently heat-proof quality, ballistic performance, fire-retardant using Radiation Crosslinking Method
The multi-functional composite damping material of performance, shielding properties etc..
(2) bromo-ether of reactive flame retardant four is added in composition of raw materials, four bromo-ethers are because containing unsaturation under radiation effects
Double bond and play the effect of crosslinking accelerator, enhanced rad cross-linking effect, meanwhile, four bromo-ethers are participated in cross-linked network structure,
Enhance fire-retardant persistence.
(3) present invention adds the bromo-ether of fire retardant four before sheet material is made, and then sheet material is irradiated, can so utilize PUI
Thermoplasticity be first molded, avoid the thermoplasticity bad the problem of can not being molded for the damping material for first irradiating to obtain.
(4) preparation method is fairly simple, and operation is more convenient, is advantageous to large-scale production.
Brief description of the drawings
Fig. 1 is the preparation flow schematic diagram of imide-urethane Quito function and service damping material of the present invention.
Fig. 2 is the damping capacity test knot of imide-urethane Quito function and service damping material in the embodiment of the present invention 1
Fruit is schemed.
Fig. 3 is the damping capacity test knot of imide-urethane Quito function and service damping material in the embodiment of the present invention 2
Fruit is schemed.
Fig. 4 is the damping capacity test knot of imide-urethane Quito function and service damping material in the embodiment of the present invention 3
Fruit is schemed.
Fig. 5 is the damping capacity test knot of imide-urethane Quito function and service damping material in the embodiment of the present invention 4
Fruit is schemed.
Embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
Material used, reagent etc., unless otherwise specified, are commercially obtained in following embodiments.
Embodiment 1, absorbed dose of radiation irradiation preparation PUI Quito function and service damping material with 40kGy
First by 100 parts of PCDLs and 0.5 part of stannous octoate, 10 parts of boron carbides, 1.0 parts of SiO2Aeroge, 1.0 parts
Aramid fiber short fibre, 16 parts of pyromellitic acid dianhydrides and the mixing of 100 parts of bromo-ethers of fire retardant four, sequentially add 36 parts of HMDI, 3.3 part 1,
4- butanediols, under agitation hybrid reaction.When reaction to viscosity substantially increases, stop stirring, obtain thermoplastic polyurethane
Acid imide compound material, it is put into baking oven and is cured 8 hours under the conditions of 80 DEG C.By the material after curing under the conditions of 80 DEG C of vacuum drying oven
De-bubbled is vacuumized, 4mm sheet materials then are made with compression molding method.60Sheet material is irradiated on Co gamma-ray irradiation devices
Experiment, absorbed dose of radiation 40kGy, absorbed dose rate 10kGy/h, that is, obtains PUI Quito function and service damping material.
It is as shown in Figure 2 to the damping capacity test result of PUI Quito function and service damping material of the present invention.As a result show,
Material prepared by the present invention has obvious damping capacity.
Embodiment 2, absorbed dose of radiation irradiation preparation PUI Quito function and service damping material with 80kGy
First by 100 parts of PCDLs and 0.5 part of stannous octoate, 10 parts of boron carbides, 1.0 parts of SiO2Aeroge, 1.0 parts
Aramid fiber short fibre, 16 parts of pyromellitic acid dianhydrides and the mixing of 100 parts of bromo-ethers of fire retardant four, sequentially add 36 parts of HMDI, 3.3 part 1,
4- butanediols, under agitation hybrid reaction.When reaction to viscosity substantially increases, stop stirring, obtain thermoplastic polyurethane
Acid imide compound material, it is put into baking oven and is cured 8 hours under the conditions of 80 DEG C.By the material after curing under the conditions of 80 DEG C of vacuum drying oven
De-bubbled is vacuumized, 4mm sheet materials then are made with compression molding method.Samples of sheets obtained above is existed60Co gamma-ray irradiations
Irradiation test is carried out on device, absorbed dose of radiation 80kGy, absorbed dose rate 10kGy/h, that is, obtains PUI Quito function and service
Damping material.
It is as shown in Figure 3 to the damping capacity test result of PUI Quito function and service damping material of the present invention.As a result show,
Material prepared by the present invention has obvious damping capacity.
Embodiment 3, absorbed dose of radiation irradiation preparation PUI Quito function and service damping material with 160kGy
First by 100 parts of PCDLs and 0.5 part of stannous octoate, 10 parts of boron carbides, 1.0 parts of SiO2Aeroge, 1.0 parts
Aramid fiber short fibre, 16 parts of pyromellitic acid dianhydrides and the mixing of 100 parts of bromo-ethers of fire retardant four, sequentially add 36 parts of HMDI, 3.3 part 1,
4- butanediols, under agitation hybrid reaction.When reaction to viscosity substantially increases, stop stirring, obtain thermoplastic polyurethane
Acid imide compound material, it is put into baking oven and is cured 8 hours under the conditions of 80 DEG C.By the material after curing under the conditions of 80 DEG C of vacuum drying oven
De-bubbled is vacuumized, 4mm sheet materials then are made with compression molding method.Samples of sheets obtained above is existed60Co gamma-ray irradiations
Irradiation test is carried out on device, absorbed dose of radiation 160kGy, absorbed dose rate 10kGy/h, that is, obtains PUI Quito function and service
Damping material.
It is as shown in Figure 4 to the damping capacity test result of PUI Quito function and service damping material of the present invention.As a result show,
Material prepared by the present invention has obvious damping capacity.
Embodiment 4, absorbed dose of radiation irradiation preparation PUI Quito function and service damping material with 320kGy
First by 100 parts of PCDLs and 0.5 part of stannous octoate, 10 parts of boron carbides, 1.0 parts of SiO2Aeroge, 1.0 parts
Aramid fiber short fibre, 16 parts of pyromellitic acid dianhydrides and the mixing of 100 parts of bromo-ethers of fire retardant four, sequentially add 36 parts of HMDI, 3.3 part 1,
4- butanediols, under agitation hybrid reaction.When reaction to viscosity substantially increases, stop stirring, obtain thermoplastic polyurethane
Acid imide compound material, it is put into baking oven and is cured 8 hours under the conditions of 80 DEG C.By the material after curing under the conditions of 80 DEG C of vacuum drying oven
De-bubbled is vacuumized, 4mm sheet materials then are made with compression molding method.Samples of sheets obtained above is existed60Co gamma-ray irradiations
Irradiation test is carried out on device, absorbed dose of radiation 320kGy, absorbed dose rate 10kGy/h, that is, obtains PUI Quito function and service
Damping material.
It is as shown in Figure 5 to the damping capacity test result of PUI Quito function and service damping material of the present invention.As a result show,
Material prepared by the present invention has obvious damping capacity.
Claims (2)
1. a kind of preparation method of imide-urethane Quito function and service damping material, comprises the following steps：
1）Dihydric alcohol, pyromellitic acid dianhydride, catalyst and filler are mixed, obtain mixture；Then into the mixture according to
Secondary addition diisocyanate and chain extender mixing, adds the diisocyanate and the chain extender is stirred to viscosity increase
When, stop stirring, obtain thermoplastic polyurethane acid imide compound material；
The dihydric alcohol is PCDL, PTMEG, polyester-diol；
The catalyst is stannous octoate, dibutyltin dilaurate；
The filler is boron carbide, SiO2The mixture of aeroge, aramid fiber short fibre and four bromo-ethers；
The diisocyanate is 4,4’- dicyclohexyl methyl hydride -4,4,- diisocyanate or 4,4’- diphenyl methane -4,4,- two
Isocyanates；
The chain extender is 1,4- butanediols, ethylene glycol, propane diols, diglycol；
The dihydric alcohol, the pyromellitic acid dianhydride, the mass ratio of catalyst and filler are 100：10~25：0.2~2.0：55.8~
178；
The mass ratio of the dihydric alcohol, the diisocyanate and the chain extender is 100：23~47：1.0~5.0；
2）Thermoplastic polyurethane acid imide compound material is cured, is then pressed into sheet material；
It is described be pressed into sheet material before also include de-bubbled the step of；
The de-bubbled carries out vacuumizing degassing using vacuum drying oven, and the temperature of the de-bubbled is 80 ~ 130 DEG C；
The temperature of the curing is 60 ~ 130 DEG C；
The time of the curing is 3 ~ 10h；
The thickness of the sheet material is 2mm ~ 20mm；
3）The sheet material is irradiated, that is, obtains imide-urethane Quito function and service damping material；
The irradiation is irradiated using gamma-rays；
The absorbed dose of radiation of the irradiation is 40 ~ 320 kGy；
The absorbed dose rate of the irradiation is 1 ~ 20kGy/h.
2. imide-urethane Quito function and service damping material prepared by the method described in claim 1.
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| CN105568429B (en) * | 2016-03-18 | 2017-07-21 | 广州联洪合成材料有限公司 | A kind of preparation method of damping material |
| CN109553743A (en) * | 2017-09-25 | 2019-04-02 | 北京工商大学 | A kind of Inorganic Fillers Filled high temperature resistant foamed material and preparation method thereof |
| CN112693200A (en) * | 2020-12-21 | 2021-04-23 | 辽宁弗佰克高新材料有限公司 | Vibrating diaphragm, preparation method thereof and acoustoelectric device |
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| CN102127225A (en) * | 2010-12-08 | 2011-07-20 | 北京市射线应用研究中心 | Hard polyimide foaming structural material and preparation method thereof |
| CN103059257A (en) * | 2013-01-22 | 2013-04-24 | 北京市射线应用研究中心 | Irradiation-modified polyurethane piezoelectric damping material with conductive channel prepared from graphene and preparation method for same |
| CN103509167A (en) * | 2013-07-25 | 2014-01-15 | 北京理工大学 | Anti-droplet and high temperature resistant polyimide type polyurethane and preparation method thereof |
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| JP2008101195A (en) * | 2006-09-19 | 2008-05-01 | Nitta Ind Corp | Imide-modified elastomer |
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| CN102127225A (en) * | 2010-12-08 | 2011-07-20 | 北京市射线应用研究中心 | Hard polyimide foaming structural material and preparation method thereof |
| CN103059257A (en) * | 2013-01-22 | 2013-04-24 | 北京市射线应用研究中心 | Irradiation-modified polyurethane piezoelectric damping material with conductive channel prepared from graphene and preparation method for same |
| CN103509167A (en) * | 2013-07-25 | 2014-01-15 | 北京理工大学 | Anti-droplet and high temperature resistant polyimide type polyurethane and preparation method thereof |
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Address after: 401, building 201, yard a 10, Jiuxianqiao North Road, Chaoyang District, Beijing 100015 Patentee after: Beijing Ray Application Research Center Co.,Ltd. Address before: Building 201, No. 10, Jiuxianqiao North Road, Chaoyang District, Beijing 100015 Patentee before: BEIJING RADIATION APPLICATION RESEARCH CENTER |