CN106626570A - Preparation method of resistant gradually changed sound-absorbing and noise-reducing composite functional material - Google Patents

Preparation method of resistant gradually changed sound-absorbing and noise-reducing composite functional material Download PDF

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Publication number
CN106626570A
CN106626570A CN201610834685.9A CN201610834685A CN106626570A CN 106626570 A CN106626570 A CN 106626570A CN 201610834685 A CN201610834685 A CN 201610834685A CN 106626570 A CN106626570 A CN 106626570A
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sound
absorbing
sound absorption
layer
gradient
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CN106626570B (en
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巩继贤
张春春
范晓丹
李辉芹
李秋瑾
李政
张健飞
李洋
王振宇
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Tianjin Polytechnic University
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Tianjin Polytechnic University
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    • D06M2200/30—Flame or heat resistance, fire retardancy properties

Abstract

The invention discloses a preparation method of a resistant gradually changed sound-absorbing and noise-reducing composite functional material. A non-woven material is used as a basis of the material. The resistant gradually changed sound-absorbing and noise-reducing composite functional material is characterized by comprising a stain-repellent and sound-absorbing decorative layer, a sound-absorbing functional layer with a gradient structure and a heat-insulation sound-absorbing cavity layer. The stain-repellent and sound-absorbing decorative layer is made of polypropylene fibers with triangular cross sections; the sound-absorbing functional layer with the gradient structure is made of modified polyester/polyacrylamide sea-island super-fine fibers; and the heat-insulation sound-absorbing cavity layer is made of hollow polyester fibers. After the composite functional material is subjected to padding treatment and foam treatment, the composite functional material has functions of stain repellency, flame retardance, sound absorbing and noise reduction. The material has sound-absorbing gradient distribution structures from outside to inside, the sound-absorbing frequency band of the product is broadened while the thickness of the material is not increased, preparation of a fiber-based thin flexible sound absorbing body is realized, the thin light efficient sound-absorbing and noise-reducing material is obtained, and requirements on light weight of interior decorative material of vehicles are met.

Description

The preparation method of impedance transition mechanism sqouynd absorption lowering noise composite functional material
Technical field
The present invention relates to a kind of preparation method of impedance transition mechanism sqouynd absorption lowering noise composite functional material, belongs to textile material technology Field.
Background technology
Noise is the Environmental Pollution source for affecting people's work and life comfort level.As scientific and technological progress and society are sent out Exhibition, understanding of the people to noise hazard and the attention to Noise measarement are improved constantly.Compared with the sqouynd absorption lowering noise in building, hand over Noise measarement in logical compartment is a relatively new problem.The sound source for not only producing noise is different, the noise of the two Eliminate mechanism and the requirement to acoustic damping materials is also differed.Noise measarement in building hinders mainly by the sound insulation value of wall Every outer source noise, the outer source noise that gets in or a small amount of noise of indoor formation are then eliminated by sound-absorbing material.And it is right For the vehicles such as automobile, aircraft, its wallboard than wall want it is thin a lot, it is also not possible to as building by increase Wall thickness only has part high-frequency noise to be stopped by wallboard strengthening soundproof effect, so, and Middle and low frequency noise still can Cabin interior is enough entered, to be solved by sound absorption mode, therefore for the noise reduction of compartment, sound-absorbing material will undertake Most task.The sound absorption of Indoor environment can by sheet material using solving, and the vehicles such as automobile, aircraft by In internal structure reason and the requirement to lighting, the sound-absorbing material of flexible light weight can only be selected.
Although non-woven material has begun to be used for the sqouynd absorption lowering noise of the compartments such as automobile, aircraft, and manifests Go out good performance, but it equally has the limitation of general porous material noise reduction.Due to the sound absorption of porous material Consumption of the sound wave in communication process in material is relied primarily on, therefore acoustically effective depends on the thickness of material.Want to obtain Acoustically effective it is necessary to increasing the thickness of material.For the sound absorption and noise reduction material as automotive trim, material thickness increases Plus, can not only increase cost, and occupy interior space, it is often more important that do not meet to the light of communication function interior material Matterization is required.In addition, the sound absorbing capabilities of porous material are often high frequency is better than low frequency, and the low-frequency sound wave in noise is just steel plate To be stopped Deng hard noise barrier, therefore how to improve the absorbability to Middle and low frequency noise is also porous material sound absorption The preparation difficult problem to be faced of body.
The content of the invention
For above-mentioned technical problem, the invention provides a kind of preparation side of impedance transition mechanism sqouynd absorption lowering noise composite functional material Method.
The technical solution used in the present invention is：
A kind of preparation method of impedance transition mechanism sqouynd absorption lowering noise composite functional material, the material based on non-woven material, Its feature is described to refuse dirty sound absorption dress in including dirty sound absorption decorative layer, gradient-structure sound absorption function layer and heat insulation and acoustic absorption cavity layer is refused Decorations layer be non-woven material made by the polypropylene fibre of triangular-section, the gradient-structure sound absorption function layer be modified poly ester/ Non-woven material made by polyacrylamide island superfine fiber, the heat insulation and acoustic absorption cavity layer is made by hollow polyester fibre Non-woven material.
Dirty sound absorption decorative layer and the heat insulation and acoustic absorption cavity layer refused is by lamination process technology and gradient-structure sound absorption function Layer is combined.
Further technological improvement includes that described dirty sound absorption decorative layer processing technology of refusing is：
1st, by the polypropylene fibre of triangular-section by techniques such as combing, lapping, pre-needling, main acupuncture, matte acupunctures, Needle fabric is processed into, form sound absorption product refuses dirty sound absorption decorative layer.
2nd, flame-proof treatment, the housekeeping liquid of the flame-proof treatment is：90～180g/L of APP, JHF-9 efficiently hinder Combustion 90～180g/L of agent, 90～180g/L of HBCD, 90～180g/L of cyclic phosphonate ester, triethanolamine is 14～18g/L, Penetrating agent JFC is 1～5g/L, and trimethylolpropane is 0～30g/L, and migration inhibitor AM-103 is 0～30g/L, softening agent MA- 700 is 0～30g/L, and it is 6～6.5 that 15%NaOH adjusts pH, and the padding method carries out flame-proof treatment process and is：In room temperature The leaching of condition two two is rolled, pick-up rate 30～80%, then 2～10min of preliminary drying at 90～130 DEG C, 175～195 DEG C bake 0.5～ 2.5min, 0.5～15min of decatize, cold water washes 0～10min, drying.
3rd, soil-repellent finishing, the housekeeping liquid of the soil-repellent finishing is：5～100g/L of water-refusing oil-refusing finishing agent, dodecane Base 0.1～5g/L of benzene sulfonic acid sodium salt, 0.1～5g/L of 0.1～5g/L of polyacrylamide and sodium carboxymethylcellulose, dimethyl dihydroxy 10～30g/L of ethylene urea, magnesium chloride class 25～65g/L of catalyst, T- aerosol-OT 1～3g/L of salt, it is described to refuse The process of dirty foam finishing is：Apply dressing liquid foam (blowing ratio 3～30,5～50min/min of speed) first, then 2～10min of preliminary drying at 60～90 DEG C, finally bakes 2～15min at 120～180 DEG C.
Further technological improvement also includes that described gradient-structure sound absorption function layer processing technology is：
1st, by modified poly ester/polyacrylamide island superfine fiber through combing, lapping, pre-needling, main acupuncture, plain weave pin The techniques such as thorn, make needle fabric, and fibrillation process is then carried out with chemical method, form gradient-structure sound absorption function layer.
2nd, flame-proof treatment, the housekeeping liquid of the flame-proof treatment is：90～180g/L of APP, JHF-9 efficiently hinder Combustion 90～180g/L of agent, 90～180g/L of HBCD, 90～180g/L of cyclic phosphonate ester, triethanolamine is 14～18g/L, Penetrating agent JFC is 1～5g/L, and trimethylolpropane is 0～30g/L, and migration inhibitor AM-103 is 0～30g/L, softening agent MA- 700 is 0～30g/L, and it is 6～6.5 that 15%NaOH adjusts pH, and the padding method carries out flame-proof treatment process and is：In room temperature The leaching of condition two two is rolled, pick-up rate 30～80%, then 2～10min of preliminary drying at 90～130 DEG C, 175～195 DEG C bake 0.5～ 2.5min, 0.5～15min of decatize, cold water washes 0～10min, drying
3rd, gradient sound absorption function structure is arranged, and the housekeeping liquid that the gradient sound absorption function structure is arranged is：Nanometer three Two 5～30g/L of iron powder body, nanometer polymer 5～30g/L of microballoon, 10～30g/L of hexadecyltrimethylammonium chloride are aoxidized, is gathered 0.1～5g/L of acrylamide, 1～3g/L of calgon, 0.1～5g/L of polyvinyl alcohol, 0.1～5g/L of polyacrylic acid, T- sulphurs Change dioctyl succinate 1～3g/L of sodium salt, dimethyl 10～30g/L of dihydroxy ethylene urea, magnesium chloride class 25～65g/ of catalyst L, the process that the gradient sound absorption function structure is arranged is：First apply dressing liquid foam (blowing ratio 3～30, speed 5～ 50min/min), then 2～10min of preliminary drying at 60～90 DEG C, finally bakes 2～15min at 120～180 DEG C.
Further technological improvement also includes that described heat insulation and acoustic absorption cavity layer processing technology is：
1st, hollow polyester fibre is processed into by technical process such as combing, lapping, pre-needling, main acupuncture, looped pile acupunctures Needle fabric, as the heat insulation and acoustic absorption cavity layer of product.
Flame-proof treatment, the housekeeping liquid of the flame-proof treatment is：90～180g/L of APP, JHF-9 highly effective flame-retardant 90～180g/L of agent, 90～180g/L of HBCD, 90～180g/L of cyclic phosphonate ester, triethanolamine is 14～18g/L, is oozed Thoroughly agent JFC is 1～5g/L, and trimethylolpropane is 0～30g/L, and migration inhibitor AM-103 is 0～30g/L, softening agent MA-700 For 0～30g/L, it is 6～6.5 that 15%NaOH adjusts pH, and the padding method carries out flame-proof treatment process and is：In room temperature condition Two leachings two are rolled, pick-up rate 30～80%, then 2～10min of preliminary drying at 90～130 DEG C, 175～195 DEG C bake 0.5～ 2.5min, 0.5～15min of decatize, cold water washes 0～10min, drying
Further technological improvement also includes that described refuses dirty sound absorption decorative layer, gradient-structure sound absorption function layer, heat-insulated suction Sound cavity layer is combined by lamination process technique.
Further technological improvement also includes that described lamination process process is：Hot-melting size is applied into gradient-structure to inhale The both sides of sound functional layer, then will refuse respectively dirty sound absorption decorative layer and heat insulation and acoustic absorption cavity layer is superimposed on both sides, hot melt pressurization, temperature 115～130 DEG C of degree, 40～50Mpa of pressure, 30～45min of time, cooling.
Further technological improvement also includes that described lamination process formula is：20～50g/L of thermal fusing powder, granularity 0～80 μm, nonionic base starches 40～50g/L, once thick dose of 0～3g/L, appropriate deionized water.
The invention has the beneficial effects as follows：The prepared impedance transition mechanism sqouynd absorption lowering noise composite functional material of this research is knitted with non- Based on producing material material, obtained by finishing functions and Compound Machining.Research Thinking is different from cloth, felt, foamed plastics etc. and passes The sound absorbing mechanism of system porous material, also different from the perforated microstructure of rigid sheet material the mechanism of acoustic resistance, integrated application porous are produced Sound absorption and resonance sound absorbing mechanism, breach the limitation that fibrous material is acted on mainly by porous sound absorption mechanisms play sound-absorbing material, have There is preferable novelty, by building gradient function structure, realize prepared by fiber base low profile flexible sound absorber.
The present invention plays the distinctive 3-D solid structure feature of non-woven material, by building gradient sound absorption function structure, The absorption efficiency to sound wave is improved, the efficient sound absorption and noise reduction material of thin light is obtained, is allowed to be particularly suited for vehicles cabin The interior trim of room.In addition, the structure of gradient sound absorption function structure has also widened the sound absorption frequency range of product, reduce it and sound wave is absorbed sound Frequency range lower limit, the noise of low-frequency range in making it more to absorb sound, this improves the anti-acoustic capability of porous absorber, further Improve the comfortableness of compartment environment.And, by several functions composite finishing, this product not only has sqouynd absorption lowering noise function, And with fire-retardant and refuse dirty function, it is more applicable for automotive interior material.Additionally, this product is made up of non-woven material Low profile flexible textile fabric, except the feature with sqouynd absorption lowering noise as main contents, also with certain dicoration.
Description of the drawings：
Fig. 1 is product form schematic diagram, wherein 1 to refuse dirty sound absorption decorative layer, 2 is gradient-structure sound absorption function layer, 3 be every Heat sound absorption cavity layer.
Specific embodiment
Embodiment 1
A kind of its preparation process of impedance transition mechanism sqouynd absorption lowering noise composite functional material of the present invention, specifically includes following：
Refusing dirty sound absorption decorative layer processing technology is：
1) by the polypropylene fibre of triangular-section by techniques such as combing, lapping, pre-needling, main acupuncture, matte acupunctures, Needle fabric is processed into, form sound absorption product refuses dirty sound absorption decorative layer 1；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 75%, it is then pre- at 110 DEG C 10min is dried, 175 DEG C bake 2.5min, decatize 10min, and cold water washes 10min, drying, housekeeping liquid：APP 120g/L, JHF-9 efficient flame-retarding agent 90g/L, HBCD 100g/L, cyclic phosphonate ester 110g/L, triethanolamine is 14g/L, bleeding agent JFC is 1g/L, and trimethylolpropane is 8g/L, and migration inhibitor AM-103 is 5g/L, and softening agent MA-700 is 10g/L, 15% It is 6 that NaOH adjusts pH；
3) soil-repellent finishing is carried out to the outer surface for refusing dirty sound absorption decorative layer with foam finishing method, applies to arrange vacuole first Foam (blowing ratio 12, speed 35min/min), then the preliminary drying 10min at 90 DEG C, finally bakes 3min, finisher at 170 DEG C Make liquid：Water-refusing oil-refusing finishing agent 15g/L, neopelex 2g/L, polyacrylamide 2g/L and sodium carboxymethylcellulose 2g/L, dimethyl dihydroxy ethylene urea 10g/L, magnesium chloride class catalyst 25g/L, T- aerosol-OT salt 1g/L.
Gradient-structure sound absorption function layer processing technology be：
1) by modified poly ester/polyacrylamide island superfine fiber through combing, lapping, pre-needling, main acupuncture, plain weave pin The techniques such as thorn, make needle fabric, and fibrillation process is then carried out with chemical method, form gradient-structure sound absorption function layer 2；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 75%, it is then pre- at 110 DEG C 10min is dried, 175 DEG C bake 2.5min, decatize 10min, and cold water washes 10min, drying, housekeeping liquid：APP i20g/L, JHF-9 efficient flame-retarding agent 90g/L, HBCD 100g/L, cyclic phosphonate ester 110g/L, triethanolamine is 14g/L, bleeding agent JFC is 1g/L, and trimethylolpropane is 8g/L, and migration inhibitor AM-103 is 5g/L, and softening agent MA-700 is 10g/L, 15% It is 6 that NaOH adjusts pH；
3) arrangement of gradient sound absorption function structure is carried out to the one side of gradient-structure sound absorption function layer with foam finishing method, it is first First apply dressing liquid foam (blowing ratio 12, speed 35min/min), then the preliminary drying 6min at 90 DEG C, finally roast at 170 DEG C Dry 3min, housekeeping liquid：Nanometer ferric oxide powder 30g/L, nanometer polymer microballoon 30g/L, cetyl trimethyl Ammonium chloride 20g/L, polyacrylamide 3g/L, calgon 3g/L, polyvinyl alcohol 2g/L, polyacrylic acid 2g/L, T- sulfonation amber Amber dioctyl phthalate sodium salt 1g/L, dimethyl dihydroxy ethylene urea 20g/L, magnesium chloride class catalyst 25g/L.
Heat insulation and acoustic absorption cavity layer processing technology is：
1) hollow polyester fibre is processed into by technical process such as combing, lapping, pre-needling, main acupuncture, looped pile acupunctures Needle fabric, as the heat insulation and acoustic absorption cavity layer 3 of product；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 75%, it is then pre- at 110 DEG C 10min is dried, 175 DEG C bake 2.5min, decatize 10min, and cold water washes 10min, drying, housekeeping liquid：APP 120g/L, JHF-9 efficient flame-retarding agent 90g/L, HBCD 100g/L, cyclic phosphonate ester 110g/L, triethanolamine is 14g/L, bleeding agent JFC is 1g/L, and trimethylolpropane is 8g/L, and migration inhibitor AM-103 is 5g/L, and softening agent MA-700 is 10g/L, 15% It is 6 that NaOH adjusts pH.
Hot-melting size is applied into the both sides of gradient-structure sound absorption function layer, dirty sound absorption decorative layer and heat-insulated then will be refused respectively Sound absorption cavity layer is superimposed on both sides, hot melt pressurization, 120 DEG C of temperature, pressure 45Mpa, time 40min, cooling；The formula of molten slurry For：60 μm of thermal fusing powder 50g/L, granularity, nonionic base slurry 40g/L, once thick dose of 2g/L, appropriate deionized water.
Embodiment 2
A kind of its preparation process of impedance transition mechanism sqouynd absorption lowering noise composite functional material of the present invention, specifically includes following：
Refusing dirty sound absorption decorative layer processing technology is：
1) by the polypropylene fibre of triangular-section by techniques such as combing, lapping, pre-needling, main acupuncture, matte acupunctures, Needle fabric is processed into, form sound absorption product refuses dirty sound absorption decorative layer 1；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 70%, it is then pre- at 130 DEG C 6min is dried, 185 DEG C bake 1min, decatize 12min, and cold water washes 10min, drying, housekeeping liquid：APP 100g/L, JHF-9 efficient flame-retarding agent 130g/L, HBCD 120g/L, cyclic phosphonate ester 150g/L, triethanolamine is 18g/L, infiltration Agent JFC is 3g/L, and trimethylolpropane is 0g/L, and migration inhibitor AM-103 is 10g/L, and softening agent MA-700 is 20g/L, 15% It is 6 that NaOH adjusts pH；
3) soil-repellent finishing is carried out to the outer surface for refusing dirty sound absorption decorative layer with foam finishing method, applies to arrange vacuole first Foam (blowing ratio 15, speed 30min/min), then the preliminary drying 10min at 80 DEG C, finally bakes 5min, finisher at 160 DEG C Make liquid：Water-refusing oil-refusing finishing agent 25g/L, neopelex 3g/L, polyacrylamide 2g/L and sodium carboxymethylcellulose 1g/L, dimethyl dihydroxy ethylene urea 20g/L, magnesium chloride class catalyst 30g/L, T- aerosol-OT salt 3g/L.
Gradient-structure sound absorption function layer processing technology be：
1) by modified poly ester/polyacrylamide island superfine fiber through combing, lapping, pre-needling, main acupuncture, plain weave pin The techniques such as thorn, make needle fabric, and fibrillation process is then carried out with chemical method, form gradient-structure sound absorption function layer 2；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 70%, it is then pre- at 130 DEG C 6min is dried, 185 DEG C bake 1min, decatize 12min, and cold water washes 10min, drying, housekeeping liquid：APP 100g/L, JHF-9 efficient flame-retarding agent 130g/L, HBCD 120g/L, cyclic phosphonate ester 150g/L, triethanolamine is 18g/L, infiltration Agent JFC is 3g/L, and trimethylolpropane is 0g/L, and migration inhibitor AM-103 is 10g/L, and softening agent MA-700 is 20g/L, 15% It is 6 that NaOH adjusts pH；
3) arrangement of gradient sound absorption function structure is carried out to the one side of gradient-structure sound absorption function layer with foam finishing method, it is first First apply dressing liquid foam (blowing ratio 20, speed 30min/min), then the preliminary drying 10min at 80 DEG C, finally at 180 DEG C Bake 2min, housekeeping liquid：Nanometer ferric oxide powder 30g/L, nanometer polymer microballoon 20g/L, cetyl front three Ammonium chloride 25g/L, polyacrylamide 3g/L, calgon 2.5g/L, polyvinyl alcohol 2g/L, polyacrylic acid 1g/L, T- sulphurs Change dioctyl succinate sodium salt 3g/L, dimethyl dihydroxy ethylene urea 30g/L, magnesium chloride class catalyst 35g/L.
Heat insulation and acoustic absorption cavity processing technology is：
1) hollow polyester fibre is processed into by technical process such as combing, lapping, pre-needling, main acupuncture, looped pile acupunctures Needle fabric, as the heat insulation and acoustic absorption cavity 3 of product；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 70%, it is then pre- at 130 DEG C 6min is dried, 185 DEG C bake 1min, decatize 12min, and cold water washes 10min, drying, housekeeping liquid：APP 100g/L, JHF-9 efficient flame-retarding agent 130g/L, HBCD 120g/L, cyclic phosphonate ester 150g/L, triethanolamine is 18g/L, infiltration Agent JFC is 3g/L, and trimethylolpropane is 0g/L, and migration inhibitor AM-103 is 10g/L, and softening agent MA-700 is 20g/L, 15% It is 6 that NaOH adjusts pH.
Hot-melting size is applied into the both sides of gradient-structure sound absorption function layer, dirty sound absorption decorative layer and heat-insulated then will be refused respectively Sound absorption cavity layer is superimposed on both sides, hot melt pressurization, 120 DEG C of temperature, pressure 45Mpa, time 40min, cooling；The formula of molten slurry For：60 μm of thermal fusing powder 50g/L, granularity, nonionic base slurry 40g/L, once thick dose of 2g/L, appropriate deionized water.
Embodiment 3
A kind of its preparation process of impedance transition mechanism sqouynd absorption lowering noise composite functional material of the present invention, specifically includes following：
Refusing dirty sound absorption decorative layer processing technology is：
1) by the polypropylene fibre of triangular-section by techniques such as combing, lapping, pre-needling, main acupuncture, matte acupunctures, Needle fabric is processed into, form sound absorption product refuses dirty sound absorption decorative layer 1；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 65%, it is then pre- at 100 DEG C 10min is dried, 195 DEG C bake 0.5min, decatize 8min, and cold water washes 10min, drying, housekeeping liquid：APP 120g/L, JHF-9 efficient flame-retarding agent 120g/L, HBCD 120g/L, cyclic phosphonate ester 120g/L, triethanolamine is 15g/L, infiltration Agent JFC is 2g/L, and trimethylolpropane is 12g/L, and migration inhibitor AM-103 is 12g/L, and softening agent MA-700 is 12g/L, It is 6 that 15%NaOH adjusts pH；
3) soil-repellent finishing is carried out to the outer surface for refusing dirty sound absorption decorative layer with foam finishing method, applies to arrange vacuole first Foam (blowing ratio 10, speed 20min/min), then the preliminary drying 10min at 85 DEG C, finally bakes 4min, finisher at 175 DEG C Make liquid：Water-refusing oil-refusing finishing agent 20g/L, neopelex 3g/L, polyacrylamide 3g/L and sodium carboxymethylcellulose 3g/L, dimethyl dihydroxy ethylene urea 15g/L, magnesium chloride class catalyst 30g/L, T- aerosol-OT salt 2g/L.
Gradient-structure sound absorption function layer processing technology be：
1) by modified poly ester/polyacrylamide island superfine fiber through combing, lapping, pre-needling, main acupuncture, plain weave pin The techniques such as thorn, make needle fabric, and fibrillation process is then carried out with chemical method, form gradient-structure sound absorption function layer 2；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 65%, it is then pre- at 100 DEG C 10min is dried, 195 DEG C bake 0.5min, decatize 8min, and cold water washes 10min, drying, housekeeping liquid：APP 120g/L, JHF-9 efficient flame-retarding agent 120g/L, HBCD 120g/L, cyclic phosphonate ester 120g/L, triethanolamine is 15g/L, infiltration Agent JFC is 2g/L, and trimethylolpropane is 12g/L, and migration inhibitor AM-103 is 12g/L, and softening agent MA-700 is 12g/L, It is 6 that 15%NaOH adjusts pH；
3) arrangement of gradient sound absorption function structure is carried out to the one side of gradient-structure sound absorption function layer with foam finishing method, it is first First apply dressing liquid foam (blowing ratio 10, speed 20min/min), then the preliminary drying 8min at 85 DEG C, finally roast at 175 DEG C Dry 4min, housekeeping liquid：Nanometer ferric oxide powder 25g/L, nanometer polymer microballoon 30g/L, cetyl trimethyl Ammonium chloride 25g/L, polyacrylamide 2.5g/L, calgon 2.5g/L, polyvinyl alcohol 3g/L, polyacrylic acid 3g/L, T- sulphurs Change dioctyl succinate sodium salt 2g/L, dimethyl dihydroxy ethylene urea 15g/L, magnesium chloride class catalyst 30g/L.
Heat insulation and acoustic absorption cavity layer processing technology is：
1) hollow polyester fibre is processed into by technical process such as combing, lapping, pre-needling, main acupuncture, looped pile acupunctures Needle fabric, as the heat insulation and acoustic absorption cavity layer 3 of product；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 65%, it is then pre- at 100 DEG C 10min is dried, 195 DEG C bake 0.5min, decatize 8min, and cold water washes 10min, drying, housekeeping liquid：APP 120g/L, JHF-9 efficient flame-retarding agent 120g/L, HBCD 120g/L, cyclic phosphonate ester 120g/L, triethanolamine is 15g/L, infiltration Agent JFC is 2g/L, and trimethylolpropane is 12g/L, and migration inhibitor AM-103 is 12g/L, and softening agent MA-700 is 12g/L, It is 6 that 15%NaOH adjusts pH；
Hot-melting size is applied into the both sides of gradient-structure sound absorption function layer, dirty sound absorption decorative layer and heat-insulated then will be refused respectively Sound absorption cavity layer is superimposed on both sides, hot melt pressurization, 120 DEG C of temperature, pressure 45Mpa, time 40min, cooling；The formula of molten slurry For：60 μm of thermal fusing powder 50g/L, granularity, nonionic base slurry 40g/L, once thick dose of 2g/L, appropriate deionized water.
Embodiment 4
A kind of its preparation process of impedance transition mechanism sqouynd absorption lowering noise composite functional material of the present invention, specifically includes following：
Refusing dirty sound absorption decorative layer processing technology is：
1) by the polypropylene fibre of triangular-section by techniques such as combing, lapping, pre-needling, main acupuncture, matte acupunctures, Needle fabric is processed into, form sound absorption product refuses dirty sound absorption decorative layer 1；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 80%, it is then pre- at 120 DEG C 8min is dried, 185 DEG C bake 2min, decatize 14min, and cold water washes 10min, drying, housekeeping liquid：APP 130g/L, JHF-9 efficient flame-retarding agent 150g/L, HBCD 120g/L, cyclic phosphonate ester 100g/L, triethanolamine is 16g/L, infiltration Agent JFC is 3g/L, and trimethylolpropane is 1g/L, and migration inhibitor AM-103 is 12g/L, and softening agent MA-700 is 18g/L, 15% It is 6 that NaOH adjusts pH；
3) soil-repellent finishing is carried out to the outer surface for refusing dirty sound absorption decorative layer with foam finishing method, applies to arrange vacuole first Foam (blowing ratio 30, speed 40min/min), then the preliminary drying 5min at 90 DEG C, finally bakes 15min, finisher at 150 DEG C Make liquid：Water-refusing oil-refusing finishing agent 35g/L, neopelex 3g/L, polyacrylamide 4g/L and sodium carboxymethylcellulose 5g/L, dimethyl dihydroxy ethylene urea 30g/L, magnesium chloride class catalyst 40g/L, T- aerosol-OT salt 2g/L.
Gradient-structure sound absorption function layer processing technology be：
1) by modified poly ester/polyacrylamide island superfine fiber through combing, lapping, pre-needling, main acupuncture, plain weave pin The techniques such as thorn, make needle fabric, and fibrillation process is then carried out with chemical method, form gradient-structure sound absorption function layer 2；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 80%, it is then pre- at 120 DEG C 8min is dried, 185 DEG C bake 2min, decatize 14min, and cold water washes 10min, drying, housekeeping liquid：APP 130g/L, JHF-9 efficient flame-retarding agent 150g/L, HBCD 120g/L, cyclic phosphonate ester 100g/L, triethanolamine is 16g/L, infiltration Agent JFC is 3g/L, and trimethylolpropane is 1g/L, and migration inhibitor AM-103 is 12g/L, and softening agent MA-700 is 18g/L, 15% It is 6 that NaOH adjusts pH；
3) arrangement of gradient sound absorption function structure is carried out to the one side of gradient-structure sound absorption function layer with foam finishing method, it is first First apply dressing liquid foam (blowing ratio 30, speed 40min/min), then the preliminary drying 5min at 90 DEG C, finally roast at 150 DEG C Dry 15min, housekeeping liquid：Nanometer ferric oxide powder 20g/L, nanometer polymer microballoon 25g/L, cetyl trimethyl Ammonium chloride 30g/L, polyacrylamide 4g/L, calgon 3g/L, polyvinyl alcohol 2g/L, polyacrylic acid 2g/L, T- sulfonation amber Amber dioctyl phthalate sodium salt 2g/L, dimethyl dihydroxy ethylene urea 18g/L, magnesium chloride class catalyst 42g/L.
Heat insulation and acoustic absorption cavity processing technology is：
1) hollow polyester fibre is processed into by technical process such as combing, lapping, pre-needling, main acupuncture, looped pile acupunctures Needle fabric, as the heat insulation and acoustic absorption cavity 3 of product；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 80%, it is then pre- at 120 DEG C 8min is dried, 185 DEG C bake 2min, decatize 14min, and cold water washes 10min, drying, housekeeping liquid：APP 130g/L, JHF-9 efficient flame-retarding agent 150g/L, HBCD 120g/L, cyclic phosphonate ester 100g/L, triethanolamine is 16g/L, infiltration Agent JFC is 3g/L, and trimethylolpropane is 1g/L, and migration inhibitor AM-103 is 12g/L, and softening agent MA-700 is 18g/L, 15% It is 6 that NaOH adjusts pH；
Hot-melting size is applied into the both sides of gradient-structure sound absorption function layer, dirty sound absorption decorative layer and heat-insulated then will be refused respectively Sound absorption cavity layer is superimposed on both sides, hot melt pressurization, 120 DEG C of temperature, pressure 45Mpa, time 40min, cooling；The formula of molten slurry For：60 μm of thermal fusing powder 50g/L, granularity, nonionic base slurry 40g/L, once thick dose of 2g/L, appropriate deionized water.
Embodiment 5
A kind of its preparation process of impedance transition mechanism sqouynd absorption lowering noise composite functional material of the present invention, specifically includes following：
Refusing dirty sound absorption decorative layer processing technology is：
1) by the polypropylene fibre of triangular-section by techniques such as combing, lapping, pre-needling, main acupuncture, matte acupunctures, Needle fabric is processed into, form sound absorption product refuses dirty sound absorption decorative layer 1；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 75%, it is then pre- at 110 DEG C 10min is dried, 175 DEG C bake 2.5min, decatize 10min, and cold water washes 10min, drying, housekeeping liquid：APP 120g/L, JHF-9 efficient flame-retarding agent 90g/L, HBCD 100g/L, cyclic phosphonate ester 110g/L, triethanolamine is 14g/L, bleeding agent JFC is 1g/L, and trimethylolpropane is 8g/L, and migration inhibitor AM-103 is 5g/L, and softening agent MA-700 is 10g/L, 15% It is 6 that NaOH adjusts pH；
3) soil-repellent finishing is carried out to the outer surface for refusing dirty sound absorption decorative layer with foam finishing method, applies to arrange vacuole first Foam (blowing ratio 12, speed 35min/min), then the preliminary drying 10min at 90 DEG C, finally bakes 3min, finisher at 170 DEG C Make liquid：Water-refusing oil-refusing finishing agent 15g/L, neopelex 2g/L, polyacrylamide 2g/L and sodium carboxymethylcellulose 2g/L, dimethyl dihydroxy ethylene urea 10g/L, magnesium chloride class catalyst 25g/L, T- aerosol-OT salt 1g/L.
Gradient-structure sound absorption function layer processing technology be：
1) by modified poly ester/polyacrylamide island superfine fiber through combing, lapping, pre-needling, main acupuncture, plain weave pin The techniques such as thorn, make needle fabric, and fibrillation process is then carried out with chemical method, form gradient-structure sound absorption function layer 2；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 75%, it is then pre- at 110 DEG C 10min is dried, 175 DEG C bake 2.5min, decatize 10min, and cold water washes 10min, drying, housekeeping liquid：APP 120g/L, JHF-9 efficient flame-retarding agent 90g/L, HBCD 100g/L, cyclic phosphonate ester 110g/L, triethanolamine is 14g/L, bleeding agent JFC is 1g/L, and trimethylolpropane is 8g/L, and migration inhibitor AM-103 is 5g/L, and softening agent MA-700 is 10g/L, 15% It is 6 that NaOH adjusts pH；
3) arrangement of gradient sound absorption function structure is carried out to the one side of gradient-structure sound absorption function layer with foam finishing method, it is first First apply dressing liquid foam (blowing ratio 12, speed 35min/min), then the preliminary drying 6min at 90 DEG C, finally roast at 170 DEG C Dry 3min, housekeeping liquid：Nanometer ferric oxide powder 30g/L, nanometer polymer microballoon 30g/L, cetyl trimethyl Ammonium chloride 20g/L, polyacrylamide 3g/L, calgon 3g/L, polyvinyl alcohol 2g/L, polyacrylic acid 2g/L, T- sulfonation amber Amber dioctyl phthalate sodium salt 1g/L, dimethyl dihydroxy ethylene urea 20g/L, magnesium chloride class catalyst 25g/L.
Heat insulation and acoustic absorption cavity layer processing technology is：
1) hollow polyester fibre is processed into by technical process such as combing, lapping, pre-needling, main acupuncture, looped pile acupunctures Needle fabric, as the heat insulation and acoustic absorption cavity layer 3 of product；
2) flame-proof treatment is carried out with padding method, is rolled in the leaching of room temperature condition two two, pick-up rate 75%, it is then pre- at 110 DEG C 10min is dried, 175 DEG C bake 2.5min, decatize 10min, and cold water washes 10min, drying, housekeeping liquid：APP 120g/L, JHF-9 efficient flame-retarding agent 90g/L, HBCD 100g/L, cyclic phosphonate ester 110g/L, triethanolamine is 14g/L, bleeding agent JFC is 1g/L, and trimethylolpropane is 8g/L, and migration inhibitor AM-103 is 5g/L, and softening agent MA-700 is 10g/L, 15% It is 6 that NaOH adjusts pH.
Hot-melting size is applied into the both sides of gradient-structure sound absorption function layer, dirty sound absorption decorative layer and heat-insulated then will be refused respectively Sound absorption cavity layer is superimposed on both sides, hot melt pressurization, 115 DEG C of temperature, pressure 50Mpa, time 45min, cooling；The formula of molten slurry For：55 μm of thermal fusing powder 45g/L, granularity, nonionic base slurry 42g/L, once thick dose of 3g/L, appropriate deionized water.

Claims (2)

1. a kind of preparation method of impedance transition mechanism sqouynd absorption lowering noise composite functional material, it is characterised in that including refusing dirty sound absorption decoration Layer, gradient-structure sound absorption function layer and heat insulation and acoustic absorption cavity layer, it is described to refuse dirty sound absorption decorative layer for triangular-section polypropylene fibre Non-woven material made by dimension is formed through flame-proof treatment and surface soil-repellent finishing, and the gradient-structure sound absorption function layer is modified Non-woven material made by polyester/polypropylene acid amides island superfine fiber is through flame-proof treatment and one side gradient sound absorption function structure Arrange and formed, the heat insulation and acoustic absorption cavity layer is formed for non-woven material made by hollow polyester fibre through flame-proof treatment, institute State and refuse dirty sound absorption decorative layer and heat insulation and acoustic absorption cavity layer is combined by lamination process technology with gradient-structure sound absorption function layer.
2. a kind of preparation method of impedance transition mechanism sqouynd absorption lowering noise composite functional material according to claim 1, its feature exists It is in the processing technology of gradient-structure sound absorption function layer：
Housekeeping liquid：Nanometer 5～30g/L of ferric oxide powder, nanometer polymer 5～30g/L of microballoon, cetyl front three 10～30g/L of ammonium chloride, 0.1～5g/L of polyacrylamide, 1～3g/L of calgon, 0.1～5g/L of polyvinyl alcohol, gather 0.1～5g/L of acrylic acid, T- aerosol-OT 1～3g/L of salt, dimethyl 10～30g/L of dihydroxy ethylene urea, chlorine Change magnesium class 25～65g/L of catalyst.
The process of arrangement is：Apply dressing liquid foam (blowing ratio 3～30,5～50min/min of speed), Ran Hou first 2～10min of preliminary drying at 60～90 DEG C, finally bakes 2～15min at 120～180 DEG C.
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CN1624234A (en) * 2004-10-22 2005-06-08 上海工程技术大学 Modified nanometer dxide multifunction finishing agent, preparation method and its use
JP2008008997A (en) * 2006-06-27 2008-01-17 Bridgestone Kbg Co Ltd Composite sound absorbing structural body
CN201060643Y (en) * 2007-04-24 2008-05-14 东华大学 Melt-blown nonwovens materials for sound insulation in vehicle
CN103373021A (en) * 2012-04-27 2013-10-30 上海杰事杰新材料(集团)股份有限公司 Sound isolation and noise reduction light-weight fiber composite plate for vehicle and preparation method thereof
CN103661149A (en) * 2012-09-21 2014-03-26 东纶科技实业有限公司 Automobile engine room baffle material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1624234A (en) * 2004-10-22 2005-06-08 上海工程技术大学 Modified nanometer dxide multifunction finishing agent, preparation method and its use
JP2008008997A (en) * 2006-06-27 2008-01-17 Bridgestone Kbg Co Ltd Composite sound absorbing structural body
CN201060643Y (en) * 2007-04-24 2008-05-14 东华大学 Melt-blown nonwovens materials for sound insulation in vehicle
CN103373021A (en) * 2012-04-27 2013-10-30 上海杰事杰新材料(集团)股份有限公司 Sound isolation and noise reduction light-weight fiber composite plate for vehicle and preparation method thereof
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