CN100455844C - Damping material - Google Patents
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- CN100455844C CN100455844C CNB2005800262713A CN200580026271A CN100455844C CN 100455844 C CN100455844 C CN 100455844C CN B2005800262713 A CNB2005800262713 A CN B2005800262713A CN 200580026271 A CN200580026271 A CN 200580026271A CN 100455844 C CN100455844 C CN 100455844C
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- damping material
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Abstract
A damping material having excellent damping and lightweight characteristics, especially a damping material that can find suitable application in automobile uses wherein light weight is demanded. There is provided a damping material characterized in that a foam adhesive layer is superimposed on one major surface of a thermoplastic resin foam sheet and unified. Thus, the damping material exerts excellent damping property such that any vibrational energy conveyed to the damping material is smoothly absorbed by a synergistic effect of rigidity of the thermoplastic resin foam sheet with viscoelasticity of the foam adhesive layer. Moreover, this damping material excels in weight saving, so that it can find suitable application in uses wherein light weight is demanded, for example, uses for vehicles such as automobiles and railways and due to light weight, excels in workability.
Description
Technical field
The present invention relates to have the damping material of good vibration damping and light-duty property.
Background technique
In the past, in electrified product, used damping material for the vibration that reduces drive units such as motor.In addition, in building occupancy, for the patter of rain that reduces collapsible roof etc. and use damping material; In the automobile purposes, use damping material in order to reduce the vibration that causes drive systems such as chatter that little vibrations such as ceiling or door produce or motor owing to the vibration that produces in travelling.
As this damping material, propose a kind of folding ceiling damping block in patent documentation 1, this folding ceiling gathers the ethylene glycol terephthalate resin layer with damping block on the one side upper strata of the vibration damping plate substrate that is made of thermoplastic elastic body, thermoplastic resin and inorganic powdery object and forms.
This damping block converts vibrational energy to because inorganic powdery object is contained in inside the loss of heat, and therefore, proportion is 1g/cm
3More than just the problem of light-duty property deficiency is arranged.
In addition, except above-mentioned damping block, the vibration of the object by heavy damping block being pasted vibration (following also claim " oscillating body ") the attenuation vibration body that comes up, but have the problem of the light-duty property deficiency of damping block too.
Patent documentation 1: the spy opens flat 10-183883 communique
Summary of the invention
The invention provides a kind of damping material, particularly, can use the damping material on vehicle purposes such as automobile that is fit to the requirement of light-duty property or railway with good vibration damping and light-duty property.
As shown in Figure 1, damping material A of the present invention is fixed on the surface of oscillating body, and the vibration of the above-mentioned oscillating body that is used to decay is characterized in that having non-metal board B and the integrated lamination foaming adhesives layer C on the one side of this non-metal board B.
As the non-metal board B that damping material of the present invention uses, enumerating foaming of thermoplastic resin plate and Young's modulus is the non-foaming plate of 100～100000MPa.
And, as the thermoplastic resin that constitutes above-mentioned foaming of thermoplastic resin plate, be not particularly limited, for example, enumerate polyolefin resin, polystyrene resins, polyester resin, polyamide-based resin, petroleum resin of polythylene resin or polypropylene-based resin etc. etc., the preferred polyolefm resinoid it is desirable to contain polypropylene-based resin, preferably also with polypropylene-based resin and polythylene resin.And thermoplastic resin both can use separately, also can be also with two or more.
In addition, as above-mentioned polythylene resin, for example, enumerate high density polyethylene (HDPE), medium density polyethylene, low density polyethylene, straight chain shape low density polyethylene etc.As above-mentioned polypropylene-based resin, for example, enumerate the polypropylene-based resin etc. of the copolymer etc. of homo-polypropylene, propylene and other alkene.
As with the alkene of propylene polymerization, for example, enumerate the alpha-olefin of ethene, 1-butylene, 1-amylene, 4-methyl 1-amylene, 1-hexene, 1-octene, 1-nonene, 1-decene etc. etc.
And, as the thermoplastic resin that constitutes the foaming of thermoplastic resin plate, also using under the situation of polypropylene-based resin and polythylene resin, polypropylene-based resin preferred and with isotactic homo-polypropylene and propylene-alpha-olefin copolymers for well, it is desirable to more, also use isotactic homo-polypropylene and propylene-alpha-olefin copolymers as polypropylene-based resin, and adopt straight chain shape low density polyethylene as polythylene resin.
And when the density of above-mentioned foaming of thermoplastic resin plate was big, the light-duty property of damping material just reduced, and therefore, is preferably 0.1g/cm
3Below, it is desirable to 0.02～0.1g/cm more
3
And, when the Young's modulus of foaming of thermoplastic resin plate hour, the vibration damping of damping material just reduces, on the other hand, when its Young's modulus was big, the ductility of damping material or formability just reduced, and therefore, are preferably 10～100MPa.
When the thinner thickness of foaming of thermoplastic resin plate, the vibration damping of damping material or mechanical strength just reduce, and on the other hand, when its thickness was thicker, vibration damping just reduced, and therefore, is preferably 1～10mm, it is desirable to 2～5mm more.
In addition, the foaming of thermoplastic resin plate can be integrated and constitute with many different types of thermoplastic resins foaming plate laminated.Under the incorporate situation of different types of thermoplastic resin foaming plate laminated, preferably that two different types of thermoplastic resin foaming plate laminated are integrated with many.Under the incorporate situation of different types of thermoplastic resin foaming plate laminated with many, the Young's modulus of preferred at least one thermoplastic resin foaming plate is 10～100MPa.
The manufacture method of above-mentioned thermoplastic resin foaming plate is not particularly limited, for example, the manufacture method that is listed below, promptly, thermoplastic resin and thermolysis type stabilizer supply extruder are melted, mixing and extrusion molding are the foaminess resin plate, shine electron rays as required, αShe Xian, thereby ionization rays such as β ray with this foaminess resin plate carry out crosslinked after, the foamable resin plate is to the temperature more than the decomposition temperature of thermolysis type stabilizer and make its foaming, make the foaming of thermoplastic resin plate thus, perhaps, thermoplastic resin and physical stabilizer supply extruder are melted, mixing is also made the foaming of thermoplastic resin plate by extrusion foaming.
In addition, as above-mentioned thermolysis type stabilizer, if it is employed in the manufacturing of foaming body in the past, then be not particularly limited, for example, azodicarbonamide, benzene sulfonyl hydrazide, dinitrosopentamethylene tetramine, toluene sulfonyl hydrazide, 4 have been enumerated, 4-hydroxyl two (benzene sulfonyl hydrazide) etc., these both can use separately, also can be also with two or more.
As above-mentioned physical stabilizer, for example, methane, ethane, propane, butane, isopentane, hexane, heptane, 1,1 have been enumerated, the aliphatic hydrocarbon of 2-trimethyl cyclopropane, methyl cyclopropane, ethyl cyclobutane, cyclopentane, methyl cyclopentane, cyclohexane etc.; The single fluoromethane of trichlorine, dichlorofluoromethane, monochloro difluoromethane, 1,1,1-trichorotrifluoroethane, 1,1,2-trichorotrifluoroethane, 1,2-dichlorotetra-fluoroethane, 1-chloro-1,1-Difluoroethane, 1,1,1, the halogenated aliphatic hydrocarbon of 2-HFC-134a etc.; The ethers of dimethyl ether, cellosolvo etc.; The ketone of acetone, methyl ethyl ketone, acetylacetone,2,4-pentanedione etc.; The non-active gas of carbon dioxide, nitrogen etc. etc.
In addition, as above-mentioned non-foaminess plate, just passable if Young's modulus is 100～100000MPa.The material of non-foaming plate is so long as nonmetal just passable, and there is no particular limitation.Material as non-foaming plate, for example, enumerate synthetic resin, timber, inorganic material of the polyolefin resin, polystyrene resins, polyester resin, polyamide-based resin, polyimide based resin, petroleum resin etc. of polythylene resin or polypropylene-based resin etc. etc., the organic material of preferred synthetic resin or timber etc., further preferred synthetic resin it is desirable to melt temperature and is the synthetic resin more than 150 ℃ more.The material of non-foaming plate both can use separately, also can be also with two or more.In addition, the melt temperature of above-mentioned synthetic resin is that benchmark is measured with JIS K6921-2:2005 (plastics polypropylene (PP) is shaped and uses and extrude with 2 ones of material-Di: the practice of test film and quality requirements).
Wherein, as above-mentioned polythylene resin, for example, enumerate high density polyethylene (HDPE), medium density polyethylene, low density polyethylene, straight chain shape low density polyethylene etc.In addition, as above-mentioned polypropylene-based resin, for example, enumerate the copolymer of homo-polypropylene, propylene and other alkene etc.
As with the alkene of propylene polymerization, for example, enumerate the alpha-olefin of ethene, 1-butylene, 1-amylene, 4-methyl 1-amylene, 1-hexene, 1-octene, 1-nonene, 1-decene etc. etc.
And, when the Young's modulus of above-mentioned non-foaming plate hour, the vibration damping of damping material just reduces, and its Young's modulus when big the ductility of damping material just reduce, can not stably paste along the surface of oscillating body, therefore, Young's modulus is limited to 100～100000MPa, is preferably 500～10000MPa.
In addition, the Young's modulus of non-metal board is to measure according to following main points.That is, use the blanking die of 4.4 (blanking knife model of test film) specification of JIS K6251 the non-metal board stamping-out is become JISK6251 4.1 (shape of test film and size) specification No. 1 shape of dumbbell-like shape and obtain test film.The top and bottom of adjusting test film are parallel to each other it.Secondly, the thickness t (m) at the center of determination test leaf length direction and the center of width direction, and the length W (m) of the width direction at the center of determination test leaf length direction.
Then, above-mentioned test film is installed on a pair of anchor clamps of cupping machine.A pair of anchor clamps are installed in from each of the edges at two ends of test film length direction, enter to the inside on the part of 20mm along its length, and the spacing between the anchor clamps is 80mm.
Then, be separated from each other and test film is elongated 0.5mm with the draw speed that 1000mm/ divides in the longitudinal direction, and then, make anchor clamps mutually near making test film reset into original state by the speed of dividing with 1000mm/ by the anchor clamps that make cupping machine.The elongation of this test film and restoring action are carried out three times as a circulation, measured the maximum load F (N) that is added in three circulations on the test film, calculate the Young's modulus Y (Pa) of non-metal board based on following formula.Wherein, in the above-mentioned formula, the extension strain of (0.5/60) expression test film.
Y(Pa)＝F/{(W×t)×(0.5/60)}
In addition, when the thinner thickness of above-mentioned non-foaming plate, the vibration damping of damping material just reduces, and when its thickness is thicker, the just reduction of the light-duty property of damping material, therefore, preferred thickness is 0.04～2mm.
And, in order to improve the light-duty property of damping material A, preferably in above-mentioned non-metal board, do not contain inorganic filler.As such inorganic filler, for example, enumerate calcium carbonate, magnesium carbonate, silicate (white clay, talcum etc.), silicic acid (silicious marl, light silicon dioxide, white carbon etc.), zine oxide (zinc white), titanium oxide, barium sulphate, calcium sulfate etc.
And the adhesives layer C lamination that will foam on the another side of above-mentioned non-metal board B is integrated.Be not particularly limited as the binder that constitutes this foaming binder C, for example, enumerate polyurethanes binder, acrylic-based adhesives etc., preferably contain acrylic-based adhesives.
In addition, contain crosslinking agent among the foaming adhesives layer C and make foaming adhesives layer C crosslinked, can keep damping effect that the viscoelasticity of foaming adhesives layer C produces and the thickness and precision that improves foaming adhesives layer C by making.As such crosslinking agent,, for example, enumerate epoxies crosslinking agent, amine crosslinking agent, silanes crosslinking agent etc. if can crosslinked foaming adhesives layer C then be not particularly limited.
In addition, the content of the crosslinking agent in foaming adhesives layer C more for a long time, the crosslink density of foaming adhesives layer is too high, the damping effect that the viscoelasticity of foaming adhesives layer produces reduces on the contrary, therefore, constitute the resinous principle of 100 weight portions of foaming adhesives layer C relatively, preferred content is the following crosslinking agents of 6 weight portions, and the content that it is desirable to crosslinking agent more is 1～4 weight portion.
And, when the density of foaming adhesives layer C hour, the damping effect that the cementability of foaming adhesives layer produces reduces, and its density is when big, the light-duty property of damping material just reduces, therefore, preferred density is 0.05～1g/cm
3, it is desirable to 0.1～1g/cm more
3, be preferably 0.15～1g/cm
3
In addition, when the thinner thickness of foaming adhesives layer C, the damping effect that the cementability of foaming adhesives layer produces reduces, and when its thickness is thicker, the just reduction of the light-duty property of damping material, so preferred thickness is 0.5～5mm, it is desirable to 1～3mm more.
In addition, preferably in foaming adhesives layer C, do not contain inorganic filler for the light-duty property that improves damping material A.As such inorganic filler, for example enumerate calcium carbonate, magnesium carbonate, silicate (white clay, talcum etc.), silicic acid (silicious marl, light silicon dioxide, white carbon etc.), zine oxide (zinc white), titanium oxide, barium sulphate, calcium sulfate etc.
As the method for using above-mentioned binder manufacturing foaming adhesives layer C, can use known method, for example, be set forth in that mixing air makes its foaming in the latex of binder, make foaming binder latex, apply this foaming binder latex and make its drying at the thickness of face arbitrarily then with regulation.
Secondly, method as the integrated manufacturing damping material of the adhesives layer C lamination A that on the one side of non-metal board B, will foam, be not particularly limited, for example, enumerate following method: be integrated and make damping material A via the two-sided tape adhesives layer C lamination that on the one side of non-metal board B, will foam; Integrated and make damping material A via the binder adhesives layer C lamination that on the one side of non-metal board B, will foam; On the one side of non-metal board B directly behind the coating foaming binder latex, make foaming binder latex dry and the adhesives layer C lamination that will foam on the one side of non-metal board B is integrated and manufacturing damping material A.
In addition, during the thinner thickness of and the damping material that form integrated when the adhesives layer C lamination that on the one side of non-metal board B, will foam, the vibration damping reduction of damping material or mechanical strength reduce, on the other hand, when its thickness is thicker, the light-duty property reduction of damping material, therefore, preferred thickness is 1.0～15mm, it is desirable to 1.0～10mm more, is preferably 1.5～5mm.
And thermoplastic resin board can be between non-metal board B and foaming adhesives layer C.As the thermoplastic resin that constitutes this thermoplastic resin board, for example, enumerate polyolefin resins such as polythylene resin or polypropylene-based resin, polystyrene resins, polyester resin, polyamide-based resin, polyimide based resin, petroleum resin etc.The thickness of above-mentioned thermoplastic resin board is preferably 1～8mm, it is desirable to 2～5mm more.This be because, the flexural rigidity of damping material just diminishes when the thinner thickness of thermoplastic resin board, the operability when damping material is pasted oscillating body just reduces, and when its thickness is thicker, damping material is rolled into circle and just becomes difficult.In addition, the Young's modulus of the thermoplastic resin board between non-metal board B and foaming adhesives layer C does not limit.
In addition, as above-mentioned polythylene resin, for example, enumerate high density polyethylene (HDPE), medium density polyethylene, low density polyethylene, straight chain shape low density polyethylene etc.In addition, as above-mentioned polypropylene-based resin, for example enumerate the copolymer of homo-polypropylene, propylene and other alkene etc.
In addition, non-metal board B is that Young's modulus is under the situation of non-foaming plate of 100～100000MPa, and above-mentioned foaming of thermoplastic resin plate can be between non-metal board B and foaming adhesives layer C.
As above-mentioned damping material A, to have non-metal board B and on the one side of this non-metal board B the situation of the incorporate foaming adhesives layer of lamination C be illustrated, also can be that a plurality of damping material A, A... are integrated in the thickness direction lamination.At this moment, in order to make non-metal board B and foaming binder C alternately need a plurality of damping material A of lamination, A... mutually.
In addition, as shown in Figure 2, also can be on the another side of non-metal board B that layer of fibers D lamination is integrated.As such layer of fibers D, for example, enumerate non-woven fabric, textile cloth, weave cloth etc., preferred non-woven fabric.
Be not particularly limited as the fiber that constitutes layer of fibers D, for example, enumerate synthetic resin fiber; Inorfil such as glass fibre or steel fiber; Natural fibre such as cotton, fiber crops, silk etc.As the synthetic fiber that constitute synthetic resin fiber, for example, enumerate polyamide-based resins such as nylon; Polyester resin; The polyolefin resin of polyethylene, polypropylene etc.; Cellulose ester etc.In addition, the fiber diameter that constitutes the fiber of layer of fibers D is preferably 0.1 μ m～1mm, it is desirable to 1～500 μ m more.
In addition, the then sound insulation reduction of damping material when the thinner thickness of layer of fibers D, and when its thickness was thicker, the light-duty property of damping material just reduced, therefore, preferred thickness is 3～30mm, it is desirable to 5～20mm more.In addition, when the density of layer of fibers D was big, the light-duty property of damping material just reduced, and therefore, preferred density is 0.5g/cm
3Below, it is desirable to 0.01～0.3g/cm more
3
And, the adhesives layer C lamination that on the one side of non-metal board B, will foam integrated and on another side with the thickness of the damping material of the integrated formation of layer of fibers D lamination, the sound insulation of damping material just reduces when this thinner thickness, on the other hand, the light-duty property of damping material just reduces when thickness is thicker, therefore, preferred thickness is 4～45mm, it is desirable to 4.5～32mm more.
As on the another side of non-metal board B with the incorporate method of layer of fibers D lamination, be not particularly limited, except via two-sided tape on the another side of non-metal board B with the incorporate method of layer of fibers D lamination, at the fiber that constitutes layer of fibers D is under the situation of synthetic resin fiber, enumerate the heat of utilizing synthetic resin fiber melt put forth effort and on the another side of non-metal board B with the incorporate method of layer of fibers D lamination.
And, make foaming adhesives layer C above-mentioned damping material A is fixed on the surface of oscillating body in oscillating body one side.Above-mentioned damping material changes into heat energy and the vibration of attenuation vibration body by the vibrational energy with oscillating body, the vibration of oscillating body is reduced or stops.And, as the yardstick of damping property of expression damping material, enumerate loss coefficient, be preferably more than 0.05 for the loss coefficient of whole frequency damping materials of the frequency range of 270～4500Hz.
On the another side of the nonmetal panel B of damping material with the incorporate situation of layer of fibers D lamination under, damping material is also brought into play good sound insulation value except effectiveness in vibration suppression.
In addition, as the method that damping material A is fixed on the surface of oscillating body, for example, enumerate following method: use two-sided tape or binder that damping material A is fixed on the oscillating body surface; The bonding force of foaming adhesives layer C by damping material A is fixed on the oscillating body surface with damping material A.
Damping material of the present invention so by the rigidity of non-metal board and the viscoelasticity of foaming adhesives layer, the vibrational energy of oscillating body can be changed into heat energy and absorption successfully, is brought into play good vibration damping owing to have aforesaid formation.
And, damping material of the present invention by non-metal board and on the one side of this non-metal board the incorporate foaming adhesives layer of lamination constitute, have good light-duty property.Therefore, damping material of the present invention requires the vehicular applications of light also can be fit to use for automobile or railway etc., and, because light-duty so also have good application property.And, damping material can be fixed on exactly and also have good formability and, seek the vibration damping of oscillating body by being shaped as the surface that desirable shape forms the oscillating body of different shape.
In addition, damping material of the present invention need not to contain metallic material or inorganic filler, the classification when discarded be easy to and the amount of the ash that produces when burning less, burning disposal easily.
And, in the foaming adhesives layer, constitute the resinous principle of 100 weight portions of this foaming adhesives layer relatively, contain under the situation of 6 parts by weight of cross-linking agent, can in the vibration damping that the viscoelasticity of keeping the foaming adhesives layer produces, improve the thickness and precision of foaming adhesives layer.
And, by on the another side of foaming of thermoplastic resin plate that the layer of fibers lamination is integrated, can give damping material good sound insulation value, can be suitable for being applied in the vehicle purposes such as the automobile purposes that requires vibration damping and sound insulation or railway.
Description of drawings
Fig. 1 is the sectional drawing of expression damping material of the present invention;
Fig. 2 is the sectional drawing of expression damping material of the present invention;
Fig. 3 is the chart of the loss coefficient measured among the embodiment of expression;
Fig. 4 is the chart of the loss coefficient measured among the embodiment of expression;
Fig. 5 is the breadboard stereogram of sound insulation that uses when measuring sound insulation.
Reference character
1: the ground board
2: left and right sides wall portion
3: rear side wall portion
4: ceiling portion
A: damping material
B: non-metal board
C: foaming adhesives layer
D: layer of fibers
Embodiment
Enumerate embodiment below embodiments of the present invention are described in detail, but the present invention has more than these embodiments of qualification.
Embodiment 1
Filter after following composition mixed equably and be made into the binder latex, water-acrylic-based adhesives latex [big Japanese イ Application キ chemistry (the DAINIPPON INK AND CHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: ボ Application コ one ト 350 (VONCOAT 350) acrylic-based adhesives compositions (resinous principle): 50 weight %] 90 weight portions, water-polyurethanes binder latex [big Japanese イ Application キ chemistry (the DAINIPPON INK AND CHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: Ha イ De ラ Application HW-930 (HYDRAN HW-930), polyurethanes binder composition (resinous principle): 50 weight %] 10 weight portions, epoxies crosslinking agent (big Japanese イ Application キ chemistry (the DAINIPPON INK AND CHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: CR-5L) 3 weight portions, ammonium chloride class blowing agent (big Japanese イ Application キ chemistry (the DAINIPPON INK AND CHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: F-1) 5 weight portions, polysiloxane-based surfactant (big Japanese イ Application キ chemistry (the DAINIPPON INK AND CHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: ボ Application コ one ト NBA-1 (VONCOATNBA-1)) ((DAICELCHEMICAL INDUSTRIES LTD.) makes in ダ イ セ Le chemical industry society for 0.5 weight portion and carboxymethyl cellulose aqueous solution, 4 weight %) 6 weight portions.In this binder latex, use the bubbler mixing air, make the binder emulsion foaming, make foaming binder latex.
Secondly, prepare one side and be the pet film of demoulding treated side.The above-mentioned foaming binder latex of coating makes it become homogeneous thickness on the demoulding treated side of this pet film, evaporate, remove the moisture of foaming binder latex then, lamination formation thickness is the foaming adhesives layer (density: 0.20g/cm of 1.9mm on pet film
3), make the foaming adhesive sheet.In addition, in the foaming adhesives layer,, contain the epoxies crosslinking agent of 6 weight portions with respect to the 100 parts by weight resin compositions that constitute this foaming adhesives layer.
On the other hand, polyethylene (the Sumitomo Mitsui polyolefin society MANUFACTURER name of an article: LE-520H) 100 weight portions, azodicarbonamide (the big mound chemistry society MANUFACTURER name of an article: SO-40) 14 weight portions and antioxidant (rising sun electrification society MANUFACTURER name of an article: ア デ カ ス Block 328 (ADEKASTAB 328)) 1 weight portion to extruder supply with and melt, mixing and extruding, obtaining thickness is the foaminess resin plate of 1.3mm.
Two sides at the foaminess resin plate that obtains makes the foaminess resin plate crosslinked with Accelerating Voltage 800kV, 2.4Mrad irradiation electron rays.This foaminess resin plate is heated to 250 ℃ and obtain the foaming of thermoplastic resin plate.The thickness of this foaming of thermoplastic resin plate is that 4.2mm, density are 0.025g/cm
3The Young's modulus of foaming of thermoplastic resin plate is 1.78MPa.
And, via two-sided tape (the ponding chemical industry society MANUFACTURER name of an article: ponding adhesive tape No.5761) above-mentioned foaming of thermoplastic resin plate is overlapped on the one side of above-mentioned foaming of thermoplastic resin plate, make its foaming adhesives layer become foaming of thermoplastic resin plate one side, the adhesives layer lamination that will foam on the one side of foaming of thermoplastic resin plate is integrated and obtain the damping material that thickness is 6.1mm.In addition, pet film is peeled off, is removed from the foaming adhesives layer.
Replace 14 weight portions with azodicarbonamide 21 weight portions, the thickness of foaminess resin plate replaces 1.3mm with 2.6mm, the two sides of foaminess resin plate replaces Accelerating Voltage 800kV, 2.4Mrad to shine electron rays with Accelerating Voltage 500kV, 3.8Mrad, in addition obtains the foaming of thermoplastic resin plate with the main points identical with embodiment 1.Wherein, the thickness of foaming of thermoplastic resin plate is that 8.6mm and density are 0.033g/cm
3The Young's modulus of foaming of thermoplastic resin plate is 1.40MPa.And, will be integrated and obtain the damping material that thickness is 10.5mm on above-mentioned foaming of thermoplastic resin plate one side with the foaming adhesives layer lamination that the main points identical with embodiment 1 are made with the method identical with embodiment 1.
Embodiment 3
Following composition is supplied with extruder melt mixing and extrude, obtaining thickness is the foaminess resin plate of 1.2mm.Ethylene-propylene random copolymer (チ Star ソ society (Chisso Corporation) the MANUFACTURER name of an article: XK0235) 45 weight portions and isotactic homo-polypropylene (the bright dipping society MANUFACTURER name of an article: the SH152) polypropylene-based resin of 15 weight portions composition, straight chain shape low density polyethylene (the bright dipping society MANUFACTURER name of an article: 0238CN) 40 weight portions, azodicarbonamide 6.8 weight portions, crosslinking agent (the common prosperity chemistry society MANUFACTURER name of an article: TND-23H) 3 weight portions, antioxidant A (the rising sun electrification society MANUFACTURER name of an article: 1 weight portion ア デ カ ス Block AO-60 (ADEKASTAB AO-60)), antioxidant B (the rising sun electrification society MANUFACTURER name of an article: 0.5 weight portion and antioxidant C (the emerging chemical society of the imperial palace MANUFACTURER name of an article: 0.5 weight portion ノ Network ラ Star Network 400S (NOCRAC400S)) ア デ カ ス Block CDA-1 (ADEKASTAB CDA-1)).
Two sides at the foaminess resin plate that obtains makes the foaminess resin plate crosslinked with Accelerating Voltage 800kV, 3.6Mrad irradiation electron rays.Secondly, this foaminess resin plate is heated to 250 ℃ obtains the foaming of thermoplastic resin plate.The thickness of this foaming of thermoplastic resin plate is that 2.9mm and density are 0.070g/cm
3The Young's modulus of foaming of thermoplastic resin plate is 19.4MPa.
And, will be integrated and obtain the damping material that thickness is 4.8mm on above-mentioned foaming of thermoplastic resin plate one side with the foaming adhesives layer lamination that the main points identical with embodiment 1 are made with the method identical with embodiment 1.
Embodiment 4
Replace 45 weight portions with ethylene-propylene random copolymer 55 weight portions, replace 15 weight portions with isotactic homo-polypropylene 25 weight portions, replace 40 weight portions with straight chain shape low density polyethylene 20 weight portions, in addition identical with embodiment 3 main points obtain the foaming of thermoplastic resin plate.It is that 2.5mm and density are 0.070g/cm that this foaming of thermoplastic resin plate obtains thickness
3The foaming of thermoplastic resin plate.The Young's modulus of foaming of thermoplastic resin plate is 23.8MPa.
Will be integrated and obtain the damping material that thickness is 4.4mm on above-mentioned foaming of thermoplastic resin plate one side with the foaming adhesives layer lamination that the main points identical with embodiment 1 are made with the method identical with embodiment 1.
Embodiment 5
Replace 45 weight portions with ethylene-propylene random copolymer 55 weight portions, replace 15 weight portions with isotactic homo-polypropylene 25 weight portions, replace 40 weight portions with straight chain shape low density polyethylene 20 weight portions, to the two sides of foaminess resin plate with Accelerating Voltage 800kV, 3.6Mrad irradiation electron rays after making the foaminess resin plate crosslinked, further to the two sides of foaminess resin plate with Accelerating Voltage 540kV, 1.7Mrad irradiation electron rays, in addition obtain the foaming of thermoplastic resin plate with the main points identical with embodiment 3.The thickness of this foaming of thermoplastic resin plate is that 2.4mm and density are 0.070g/cm
3The Young's modulus of foaming of thermoplastic resin plate is 35.6MPa.
And, will be integrated and obtain the damping material that thickness is 4.3mm on above-mentioned foaming of thermoplastic resin plate one side with the foaming adhesives layer lamination that the main points identical with embodiment 1 are made with the method identical with embodiment 1.
Embodiment 6
Replace 3 weight portions with epoxies crosslinking agent 2 weight portions, in addition make the foaming adhesive sheet, on the other hand, make the foaming of thermoplastic resin plate with embodiment's 3 identical main points with the main points identical with embodiment 1.
And it is integrated and obtain the damping material that thickness is 4.8mm on the one side of above-mentioned foaming of thermoplastic resin plate the foaming adhesives layer of above-mentioned adhesive sheet to be carried out lamination with the main points identical with embodiment 1.In the foaming adhesives layer that obtains, constitute the resinous principle of 100 weight portions of this foaming adhesives layer relatively, contain the epoxies crosslinking agent of 4 weight portions.In addition, its thickness of foaming binder is that 1.9mm and density are 0.18g/cm
3
Embodiment 7
Replace 3 weight portions with epoxies crosslinking agent 0.6 weight portion, in addition make the foaming adhesive sheet, on the other hand, make the foaming of thermoplastic resin plate with the main points identical with embodiment 3 with the main points identical with embodiment 1.
And it is integrated and obtain the damping material that thickness is 4.8mm on the one side of above-mentioned foaming of thermoplastic resin plate the foaming adhesives layer of above-mentioned adhesive sheet to be carried out lamination with the main points identical with embodiment 1.In the foaming adhesives layer that obtains, constitute the resinous principle of 100 weight portions of this foaming adhesives layer relatively, contain the epoxies crosslinking agent of 1.2 weight portions.In addition, the thickness of foaming binder is that 1.9mm and density are 0.19g/cm
3
Embodiment 8
Make the foaming adhesive sheet with the main points identical, on the other hand, make the foaming of thermoplastic resin plate with the main points identical with embodiment 3 with embodiment 1.And, via two-sided tape (the ponding chemical industry society MANUFACTURER name of an article: ponding adhesive tape No.5761) the bonding quilt of foaming is overlapped with the one side of foaming of thermoplastic resin plate, so that its foaming adhesives layer becomes foaming of thermoplastic resin plate one side, the integrated foaming adhesives layer of lamination on the one side of foaming of thermoplastic resin plate.
In addition, on the another side of foaming of thermoplastic resin plate via two-sided tape (the ponding chemical industry society MANUFACTURER name of an article: the non-woven fabric (fiber diameter: 200 μ m, density: 0.03g/cm that will form by pet fiber ponding adhesive tape No.5761)
3, thickness: 10mm) lamination is integrated, obtains the damping material that thickness is 14.8mm.Wherein, pet film is peeled off, is removed from the foaming adhesives layer.
Embodiment 9
Following ingredients is mixed the back equably filter making binder latex.Described composition is: water-acrylic-based adhesives latex [big Japanese イ Application キ chemistry (the DAINIPPON INK ANDCHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: ボ Application コ one ト 350 (VONCOAT350) acrylic-based adhesives composition (resinous principle): 50 weight %] 90 weight portions, water-polyurethanes binder latex [big Japanese イ Application キ chemistry (the DAINIPPON INK AND CHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: Ha イ De ラ Application HW-930 (HYDRAN HW-930) polyurethanes binder composition (resinous principle): 50 weight %] 10 weight portions, ammonium chloride class blowing agent (big Japanese イ Application キ chemistry (the DAINIPPON INK AND CHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: F-1) 5 weight portions, polysiloxane-based surfactant (big Japanese イ Application キ chemistry (the DAINIPPON INK AND CHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: ボ Application コ one ト NBA-1 (VONCOAT NBA-1)) ((DAICELCHEMICAL INDUSTRIES LTD.) makes in ダ イ セ Le chemical industry society for 0.5 weight portion and carboxymethyl cellulose aqueous solution, 4 weight %) 6 weight portions.In this binder latex, use the bubbler mixing air to foam and make foaming binder latex.
Secondly, prepare one side and be the pet film of demoulding treated side, the above-mentioned foaming binder latex of coating makes it become homogeneous thickness on the demoulding treated side of this polyethylene terephthalate film, evaporate, remove the moisture of foaming binder latex then, lamination formation thickness is the foaming adhesives layer (density: 0.23g/cm of 1.1mm on pet film
3) and make the foaming adhesive sheet.
And, at thickness is polyester sheet (East レ (the Toray Industries of society of 0.05mm, Inc.) the MANUFACTURER name of an article: Le ミ ラ one T60#50 (Lumirror T60#50) Young's modulus: on the one side melt temperature of 3270MPa polyester: 105 ℃) via two-sided tape (the ponding chemical industry society MANUFACTURER name of an article: ponding adhesive tape No.5761) overlap the foaming adhesive sheet, make its foaming adhesive layer become polyester sheet one side, the adhesives layer lamination that will foam on the one side of polyester sheet is integrated and obtain damping material.In addition, polyethylene terephthalate film is peeled off, is removed from the foaming adhesives layer.
Embodiment 10
Foaming adhesives layer (density: 0.23g/cm with the foaming adhesive sheet
3) thickness be adjusted into 1.0mm, is polyester sheet (the Mitsubishi Chemical polyester film society MANUFACTURER name of an article: ダ イ ア ホ イ Le (Diafoil) Young's modulus: the melt temperature of 3160MPa polyester: 105 ℃), with embodiment's 9 identical damping materials that obtain of 0.05mm as polyester sheet except that used thickness.
Embodiment 11
Used thickness is (the DU PONT-TORAY CO. of polyimide plate (East レ デ ユ Port Application society of 0.08mm except replacing polyester sheet, LTD.) the MANUFACTURER name of an article: カ プ ト Application (Kapton) Young's modulus: the melt temperature of 4310MPa polyimide: 220 ℃) in addition, with embodiment's 9 identical damping materials that obtain.
Embodiment 12
Further add epoxy crosslinking agent (big Japanese イ Application キ chemistry (the DAINIPPON INK ANDCHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: CR-5L) 3 weight portions are made the binder latex, with the foaming adhesives layer (density: 0.20g/cm of foaming adhesive sheet
3) thickness adjust to 1.9mm, in addition, with embodiment's 9 identical damping materials that obtain.In addition, constitute 100 parts by weight resin compositions of this foaming adhesives layer in the foaming adhesives layer relatively, contain 6 weight portion epoxy crosslinking agents.
Embodiment 13
Further add epoxy crosslinking agent (big Japanese イ Application キ chemistry (the DAINIPPON INK ANDCHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: CR-5L) 1.2 weight portions are made the binder latex, with the foaming adhesives layer (density: 0.19g/cm of foaming adhesive sheet
3) thickness adjust to 1.9mm, in addition, with embodiment's 9 identical damping materials that obtain.In addition, constitute 100 parts by weight resin compositions of this foaming adhesives layer in the foaming adhesives layer relatively, contain 2.4 weight portion epoxy crosslinking agents.
Embodiment 14
Further add epoxy crosslinking agent (big Japanese イ Application キ chemistry (the DAINIPPON INK ANDCHEMICALS of society, INCORPORATED) the MANUFACTURER name of an article: CR-5L) 0.5 weight portion is made the binder latex, with the foaming adhesives layer (density: 0.19g/cm of foaming adhesive sheet
3) thickness adjust to 1.9mm, in addition, with embodiment's 9 identical damping materials that obtain.In addition, constitute 100 parts by weight resin compositions of this foaming adhesives layer in the foaming adhesives layer relatively, contain 1 weight portion epoxy crosslinking agent.
Comparative example 1
Make the foaming adhesive sheet by the main points identical with embodiment 1.
Comparative example 2
Following ingredients supplied with that extruder melts mixing and and extrude, obtaining thickness is the foaminess resin plate of 1.2mm.Described composition is: ethylene-propylene random copolymer (チ Star ソ society (ChissoCorporation) the MANUFACTURER name of an article: XK0235) 55 weight portions, isotactic homo-polypropylene (the bright dipping society MANUFACTURER name of an article: SH152) 25 weight portions, straight chain shape low density polyethylene (the bright dipping society MANUFACTURER name of an article: 0238CN) 20 weight portions, azodicarbonamide 6.8 weight portions, crosslinking agent (the common prosperity chemistry society MANUFACTURER name of an article: TND-23H) 3 weight portions, antioxidant A (the rising sun electrification society MANUFACTURER name of an article: 1 weight portion ア デ カ ス Block AO-60 (ADEKASTAB AO-60)), antioxidant B (the rising sun electrification society MANUFACTURER name of an article: 0.5 weight portion and antioxidant C (the emerging chemical society of the imperial palace MANUFACTURER name of an article: 0.5 weight portion ノ Network ラ Star Network 400S (NOCRAC 400S)) ア デ カ ス Block CDA-1 (ADEKASTAB CDA-1)).
Two sides at the foaminess resin plate that obtains makes the foaminess resin plate crosslinked with Accelerating Voltage 800kV, 3.6Mrad irradiation electron rays.Secondly, this foaminess resin plate is heated to 250 ℃ obtains the foaming of thermoplastic resin plate.The thickness of this foaming of thermoplastic resin plate is that 3.0mm and density are 0.038g/cm
3The Young's modulus of foaming of thermoplastic resin plate is 18.7MPa.
Comparative example 3
With two-layer be non-woven fabric (Sumitomo ス リ one エ system society (Sumitomo 3M) the MANUFACTURER name of an article: シ Application サ レ one ト (Thinsulate) weight per unit area: 400g/m that the polyester fibre of 23mm is formed by thickness
2) the integrated formation of lamination and obtain the non-woven fabric laminate.
Vibration damping to foaming adhesives layer, foaming of thermoplastic resin plate and the non-woven fabric laminate of the damping material that obtains, foaming adhesive sheet is measured by the main points shown in following, its result as Fig. 3,4 and table 2～4 shown in, and, the sound insulation (embodiment 1～8, comparative example 1～3) of foaming adhesives layer, foaming of thermoplastic resin plate and non-woven fabric laminate to damping material, foaming adhesive sheet is measured, and its result is as shown in table 5.
Vibration damping
Stablizing excitation method with the centre bearing of stipulating among the JIS G0602 is benchmark, measures the loss coefficient in 270～4600Hz scope, and the loss coefficient that records is as the index of vibration damping.Particularly, cut out from damping material, foaming adhesives layer, foaming of thermoplastic resin plate and non-woven fabric laminate respectively long * widely be the rectangular test film in plane of 250mm * 15mm, with this test film via two-sided tape (the ponding chemical industry society MANUFACTURER name of an article: ponding adhesive tape No.5761) stick on steel plate (SPCC～SB, the plane rectangular: the thick 0.5mm of the wide 15mm of long 250mm), measure the interior loss coefficient of 270～4600Hz scope of JIS G3141 regulation.In addition, when sticking on damping material on the steel plate, the foaming adhesives layer of damping material becomes the steel plate side.
In addition, in embodiment 1～5 and embodiment 8, approximately the loss coefficient of the above frequency field of 3400Hz measure less than.Its reason is the frequency field more than about 3400Hz, and the vibration material is given full play to vibration damping, to such an extent as to can not find the point of resonance of damping material.Even at the about frequency field more than the 3400Hz, damping material also show with 3300Hz near the vibration damping of par.
Sound insulation
As shown in Figure 5, prepare the sound insulation laboratory, this sound insulation laboratory comprises: rectangular ground, plane board 1; Extend the left and right sides wall portion 2,2 that is provided with to vertical direction from the left and right sides end margin of this ground board 1; Extend the rear side wall portion 3 that is provided with to vertical direction from the back edge of ground board 1; Upper end-face edge in rear side wall portion and left and right sides wall portion connects the ceiling portion 4 that state sets that is provided with; The metal stamping of on ceiling portion 4 whole, laying watt (the ponding chemical industry society MANUFACTURER name of an article: ponding watt) (not shown).Wherein, ceiling portion 4 be long for 3500mm, widely be the plane rectangular of 1200mm, be approximately 55cm from the height of center (center of gravity) above ground board 1 of ceiling portion 4.
Secondly, via two-sided tape (the ponding chemical industry society MANUFACTURER name of an article: ponding adhesive tape No.5761) foaming adhesives layer, foaming of thermoplastic resin plate and the non-woven fabric laminate of damping material, foaming adhesive sheet sticked on below ceiling portion 4 whole.In addition, the foaming adhesives layer of damping material becomes ceiling portion 4 sides.
Then, utilize artificial rain device to carry out rainfall from the top of ceiling portion 4 and be 100mm/ hour the overhead irrigation (diameter of rain grain: 3mm gap: 5cm).Other conditions are benchmark with JIS Z8731, use normal noise meter (リ オ Application (the RION Co. of society, Ltd.) the MANUFACTURER name of an article: NA-29), pass through 1/1 octave frequency band frequency measurement sound equipment performance (equivalent noise: average 5 seconds) at 500Hz, 1000Hz, 2000Hz, 4000Hz.Wherein, overhead irrigation is in center (center of gravity) the vertical direction 7m position highly from ceiling portion 4 artificial rain device to be set, and produces from this artificial rain device.Common noise meter is arranged on from the center of ceiling portion 4 (center of gravity) the vertical lower only position of 30cm that descends.
In addition, under the state below foaming adhesives layer, foaming of thermoplastic resin plate and non-woven fabric laminate with damping material, foaming adhesive sheet do not stick on ceiling portion 4 fully, measure the sound equipment performance by main points same as described above.Wherein, in table 5, carry out souvenir as benchmark.
Utilizability on the industry
The present invention is the damping material with good vibration damping and light-duty property, can be applicable to require gently In the vehicular applications of the automobile of type or railway etc.
Claims (4)
1. damping material, it is fixed on the surface of oscillating body, the vibration of above-mentioned oscillating body is used to decay, it is characterized in that, has non-metal board and the integrated lamination foaming adhesives layer on the one side of this non-metal board, above-mentioned foaming adhesives layer is made by air being sneaked into make it in the acrylic adhesives to foam, and this foaming adhesives layer has cementability.
2. damping material as claimed in claim 1 is characterized in that, non-metal board is that Young's modulus is the non-foaming plate of synthetic resin of 100～100000MPa.
3. damping material as claimed in claim 2 is characterized in that, the melt temperature that constitutes the synthetic resin of the non-foaming plate of synthetic resin is more than 150 ℃.
4. damping material as claimed in claim 1 is characterized in that, also is provided with the layer of fibers of integrated lamination on the another side of non-metal board.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP225877/2004 | 2004-08-02 | ||
| JP2004225877 | 2004-08-02 | ||
| JP003126/2005 | 2005-01-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1993568A CN1993568A (en) | 2007-07-04 |
| CN100455844C true CN100455844C (en) | 2009-01-28 |
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ID=38214937
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800262713A Expired - Fee Related CN100455844C (en) | 2004-08-02 | 2005-07-08 | Damping material |
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| Country | Link |
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| CN (1) | CN100455844C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014210910A1 (en) * | 2014-06-06 | 2015-12-17 | Faist Chemtec Gmbh | Device and method for Entdröhnung a component |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6351414A (en) * | 1986-08-20 | 1988-03-04 | Showa Electric Wire & Cable Co Ltd | Resin composition for vibration damping material |
| JPH0768696A (en) * | 1993-08-31 | 1995-03-14 | Nippon Tokushu Toryo Co Ltd | Steel panel damping reinforcing sheet |
| JPH0940812A (en) * | 1995-07-25 | 1997-02-10 | Japan Synthetic Rubber Co Ltd | High-rigidity resin composition for vibration damping material |
| US5695867A (en) * | 1994-07-25 | 1997-12-09 | Lintec Corporation | Reinforcing and vibration-damping material |
| JPH11223239A (en) * | 1998-02-04 | 1999-08-17 | Nissan Motor Co Ltd | Damping structure |
| US6498700B2 (en) * | 1998-08-24 | 2002-12-24 | Nitto Denko Corporation | Damping material, damping method and disc drive |
| JP2003014040A (en) * | 2001-04-12 | 2003-01-15 | Masao Umemoto | Soundproof vibration isolating material |
-
2005
- 2005-07-08 CN CNB2005800262713A patent/CN100455844C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6351414A (en) * | 1986-08-20 | 1988-03-04 | Showa Electric Wire & Cable Co Ltd | Resin composition for vibration damping material |
| JPH0768696A (en) * | 1993-08-31 | 1995-03-14 | Nippon Tokushu Toryo Co Ltd | Steel panel damping reinforcing sheet |
| US5695867A (en) * | 1994-07-25 | 1997-12-09 | Lintec Corporation | Reinforcing and vibration-damping material |
| JPH0940812A (en) * | 1995-07-25 | 1997-02-10 | Japan Synthetic Rubber Co Ltd | High-rigidity resin composition for vibration damping material |
| JPH11223239A (en) * | 1998-02-04 | 1999-08-17 | Nissan Motor Co Ltd | Damping structure |
| US6498700B2 (en) * | 1998-08-24 | 2002-12-24 | Nitto Denko Corporation | Damping material, damping method and disc drive |
| JP2003014040A (en) * | 2001-04-12 | 2003-01-15 | Masao Umemoto | Soundproof vibration isolating material |
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| CN1993568A (en) | 2007-07-04 |
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