CN106585062B - A kind of preparation method of high noise reduction compound - Google Patents

A kind of preparation method of high noise reduction compound Download PDF

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Publication number
CN106585062B
CN106585062B CN201611119221.6A CN201611119221A CN106585062B CN 106585062 B CN106585062 B CN 106585062B CN 201611119221 A CN201611119221 A CN 201611119221A CN 106585062 B CN106585062 B CN 106585062B
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noise reduction
rubber
compound
doughnut
preparation
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CN106585062A (en
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龚湛林
李虹征
于日志
陈伟燕
欧阳珊珊
曹焕仁
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Guangdong Xinli Polytron Technologies Inc
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Guangdong Xinli Polytron Technologies Inc
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    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
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    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
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Abstract

A kind of preparation method of high noise reduction compound,（1）Pretreatment doughnut~1 and pretreatment doughnut~2 are prepared respectively；（2）Rubber, plastics, resin, auxiliary agent, filler, plasticizer and pretreatment doughnut~2 are added in order in mixer, rubber compound is obtained through high temperature tri-roll press machine slice to get to rubber noise reduction layer through mixing；（3）It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out single side brush adhesive sticker, compound to get to absorbing sound and lowering noise rubber composite with sound-absorbing porous material layer.The preparation method of the present invention pre-processes hollow core staple fibers, and applied in rubber composite, preferably avoid breakage of the doughnut in rubber composite process, rubber composite is made to have in low-frequency noise outstanding noise reduction, with porous sound absorption layer it is compound after, compound has the characteristics that full range good muffling effect, low frequency noise reduction are prominent and environmentally protective.

Description

A kind of preparation method of high noise reduction compound
Technical field
The present invention relates to quieter material technical field, specially a kind of preparation method of high noise reduction compound.
Background technology
As people's quality of production improves, the degree of automation is higher and higher, and just there are vibrations and noise in the place for having machinery, with It is exactly automobile, air-conditioning that people's lives are immediate, noise when refrigerator and washing machine are run.At present by taking air-conditioning as an example, air-conditioning is made an uproar Sound is mainly derived from outdoor machine of air-conditioner, and outdoor machine of air-conditioner main noise comes from generated noise during compressor operating, empty at present It is to reach vibration and the compressor periphery package sound insulation felt on chassis by bottom installation rubber damping pad attenuation to drop to adjust producer Low noise acoustic radiation.And sound insulation felt on the market mainly by waste and old fibre felt sound absorbing layer with vulcanization butyl film or PVC films every Sound-absorbing layer is combined, and lower noise is limited, especially the middle low frequency noise of compressor noise, while is also the master of other mechanical equipments Noise source is wanted, is the difficulty of noise-reducing.
Invention content
In view of the above problems, the present invention proposes a kind of preparation method of high noise reduction compound, to obtain full range noise reduction More preferably, low frequency noise reduces the advantageous effect of amplitude bigger.
The present invention can be achieved through the following technical solutions：
The invention discloses a kind of preparation methods of high noise reduction compound, include the following steps：
（1）Doughnut surface preparation
100g doughnuts are placed in homogenizer, the surfactant of 10~30g of addition, stirring at normal temperature 2~ After 15min at 100 DEG C~150 DEG C 5~30 min of dry reaction, obtain pretreatment doughnut~1；
Above-mentioned 100g pretreatments doughnut~1 is placed in homogenizer, adds in the latex processing containing curing agent After 20~80g of liquid, 2~15min of stirring at normal temperature at 120 DEG C~170 DEG C 5~30 min of dry reaction, obtain pre-processing hollow Fiber~2；
（2）The preparation of rubber noise reduction layer
It is in order that rubber, thermoplastic compound, resin, auxiliary agent, filler, plasticizer and pretreatment is hollow in mixer Fiber~2 adds in, 10~30 min of mixing at 120 DEG C~160 DEG C, acquired rubber compound through high temperature tri-roll press machine slice, Rolling mill roller temperature is for 90 DEG C~130 DEG C to get to rubber noise reduction layer；
The rubber noise reduction layer is made of raw material as follows in parts by weight：100 parts of rubber；Thermoplastic compound 50~ 100 parts；Resin：10~40 parts, auxiliary agent：1~15 part；Filler：100~300 parts；Plasticizer：10~40 parts；Pretreatment Doughnut~2：30~100 parts；
（3）The preparation of high noise reduction compound
It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out single side brush adhesive sticker, compound with sound-absorbing porous material layer, i.e., Obtain absorbing sound and lowering noise rubber composite.
Preferably, step（1）Described in doughnut for polyester doughnut, polyvinylidene fluoride hollow fiber, polyamide One or more of doughnut, polytetrafluoroethylhollow hollow fiber and/or Polyethersulfone Hollow Fiber Plasma.
Preferably, step（1）Described in surfactant for dopamine, poly-dopamine, silane coupling agent KH560, silane One or more of coupling agent KH570 and/or silicon 69.
Preferably, step（1）Described in the latex treatment fluid containing curing agent for carboxylic styrene butadiene latex, fourth cyanogen latex, day Right one or more of latex and/or polychloroprene latex and sulphur or phenolic resin compounding mixture.
Preferably, step（2）Described in rubber for natural rubber, nitrile rubber, butadiene-styrene rubber, butyl rubber, chlorination fourth One or more of base rubber and/or brombutyl.
Preferably, step（2）The thermoplastic compound is polyacrylic acid, plastic of poly vinyl acetate and/or polyethylene One or more of alcohol.
Preferably, step（2）The resin is in terpene resin, Petropols, epoxy resin and acrylic resin It is one or more kinds of.
Preferably, step（2）The resin is terpene resin.Step（2）The auxiliary agent is anti-aging agent RD, anti-aging agent One or more of 4010NA, antioxidant MB, antioxidant 264 and/or antioxidant 1076.
Preferably, step（2）The filler is one or both of carbon black, white carbon, Strong oxdiative calcium and/or barium sulfate More than.
Preferably, step（3）The sound-absorbing porous material layer is fibrofelt.
A kind of preparation method of high noise reduction compound of the present invention, has following advantageous effect：
Firstth, full range good muffling effect, using and especially matching to rubber matrix composition preprocessed to doughnut The method of ratio applies a large amount of doughnuts in rubber substrate, forming rubber noise reduction layer, being combined with sound-absorbing porous material layer, Conventional noise reduction material can be overcome low frequency noise reduction is low the shortcomings that, realize the sound-deadening and noise-reducing of full rate；
Secondth, environmentally friendly recyclable regenerative, different from conventional vulcanized butyl rubber piece, this rubber noise reduction layer is meeting machine It is unvulcanized rubber product while equipment uses, the leftover pieces during production and use can rejoin practicality, not generate Waste material.
Specific embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to embodiment and to this Invention product is described in further detail.
Embodiment 1
The invention discloses a kind of preparation methods of high noise reduction compound, include the following steps：
（1）Doughnut surface preparation
100g doughnuts are placed in homogenizer, add in the surfactant of 30g, after stirring at normal temperature 8min 30 min of dry reaction at 100 DEG C obtains pretreatment doughnut~1；
Above-mentioned 100g pretreatment doughnut~1 is handled as the latex in homogenizer, added in containing curing agent After liquid 50g, stirring at normal temperature 2min at 170 DEG C 18 min of dry reaction, obtain pretreatment doughnut~2；
（2）The preparation of rubber noise reduction layer
In order rubber, plastics, resin, auxiliary agent, filler, plasticizer and pretreatment doughnut~2 in mixer It adds in, 30 min of mixing at 120 DEG C, for acquired rubber compound through high temperature tri-roll press machine slice, rolling mill roller temperature is 90 DEG C~130 DEG C to get to rubber noise reduction layer；
The rubber noise reduction layer is made of raw material as follows in parts by weight：100 parts of rubber；75 parts of thermoplastic compound； Resin：10 parts, auxiliary agent：15 parts；Filler：200 parts；Plasticizer：10 parts；Pre-process doughnut~2：100 parts；
（3）The preparation of high noise reduction compound
It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out single side brush adhesive sticker, compound with sound-absorbing porous material layer, i.e., Obtain absorbing sound and lowering noise rubber composite.
In the present embodiment, step（1）Described in doughnut be polyester doughnut.Step（1）Described in surface live Agent is dopamine.Step（1）Described in the latex treatment fluid containing curing agent mixed with sulfur compounded for carboxylic styrene butadiene latex Object.Step（2）Described in rubber be natural rubber.Step（2）The thermoplastic compound is polyacrylic acid.Step（2）It is described Resin is Petropols.Step（2）The auxiliary agent is anti-aging agent RD.Step（2）The filler is carbon black.Step（3）It is described more Hole sound absorbing material layer is fibrofelt.
Embodiment 2
The invention discloses a kind of preparation methods of high noise reduction compound, include the following steps：
（1）Doughnut surface preparation
100g doughnuts are placed in homogenizer, add in the surfactant of 20g, after stirring at normal temperature 2min 18 min of dry reaction at 150 DEG C obtains pretreatment doughnut~1；
Above-mentioned 100g pretreatment doughnut~1 is handled as the latex in homogenizer, added in containing curing agent After liquid 20g, stirring at normal temperature 15min at 170 DEG C 5 min of dry reaction, obtain pretreatment doughnut~2；
（2）The preparation of rubber noise reduction layer
In order rubber, plastics, resin, auxiliary agent, filler, plasticizer and pretreatment doughnut~2 in mixer It adds in, 20 min of mixing at 160 DEG C, for acquired rubber compound through high temperature tri-roll press machine slice, rolling mill roller temperature is 90 DEG C to get to rubber noise reduction layer；
The rubber noise reduction layer is made of raw material as follows in parts by weight：100 parts of rubber；Thermoplastic compound 100 Part；Resin：25 parts, auxiliary agent：1 part；Filler：300 parts；Plasticizer：25 parts；Pre-process doughnut~2：30 parts；
（3）The preparation of high noise reduction compound
It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out single side brush adhesive sticker, compound with sound-absorbing porous material layer, i.e., Obtain absorbing sound and lowering noise rubber composite.
In the present embodiment, step（1）Described in doughnut be polyvinylidene fluoride hollow fiber.Step（1）Described in Surfactant is poly-dopamine.Step（1）Described in the latex treatment fluid containing curing agent be Heveatex and phenolic resin Compound mixture.Step（2）Described in rubber be nitrile rubber.Step（2）The thermoplastic compound is polyvinyl acetate second Enester.Step（2）The resin is epoxy resin.Step（2）The auxiliary agent is antioxidant 4010NA.Step（2）The filler For white carbon.Step（3）The sound-absorbing porous material layer is fibrofelt.
Embodiment 3
The invention discloses a kind of preparation methods of high noise reduction compound, include the following steps：
（1）Doughnut surface preparation
100g doughnuts are placed in homogenizer, add in the surfactant of 10g, after stirring at normal temperature 15min 5 min of dry reaction at 125 DEG C obtains pretreatment doughnut~1；
Above-mentioned 100g pretreatment doughnut~1 is handled as the latex in homogenizer, added in containing curing agent After liquid 80g, stirring at normal temperature 8min at 120 DEG C 30 min of dry reaction, obtain pretreatment doughnut~2；
（2）The preparation of rubber noise reduction layer
In order rubber, plastics, resin, auxiliary agent, filler, plasticizer and pretreatment doughnut~2 in mixer It adds in, 10 min of mixing at 140 DEG C, for acquired rubber compound through high temperature tri-roll press machine slice, rolling mill roller temperature is 130 DEG C to get to rubber noise reduction layer；
The rubber noise reduction layer is made of raw material as follows in parts by weight：100 parts of rubber；Thermoplastic compound 75 Part；Resin：10 parts, auxiliary agent：15 parts；Filler：200 parts；Plasticizer：10 parts；Pre-process doughnut~2：100 parts；
（3）The preparation of high noise reduction compound
It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out single side brush adhesive sticker, compound with sound-absorbing porous material layer, i.e., Obtain absorbing sound and lowering noise rubber composite.
In the present embodiment, step（1）Described in doughnut be polyamide doughnut.Step（1）Described in surface Activator is silane coupling agent KH560.Step（1）Described in the latex treatment fluid containing curing agent be Heveatex and neoprene Breast and sulfur compounded mixture.Step（2）Described in rubber be butadiene-styrene rubber.Step（2）The thermoplastic compound is poly- second Enol.Step（2）The resin is terpene resin.Step（2）The auxiliary agent is antioxidant MB.Step（2）The filler is strong Calcium oxide.Step（3）The sound-absorbing porous material layer is fibrofelt.
Embodiment 4
The invention discloses a kind of preparation methods of high noise reduction compound, include the following steps：
（1）Doughnut surface preparation
100g doughnuts are placed in homogenizer, add in the surfactant of 10g, after stirring at normal temperature 15min 18 min of dry reaction at 100 DEG C obtains pretreatment doughnut~1；
Above-mentioned 100g pretreatment doughnut~1 is handled as the latex in homogenizer, added in containing curing agent After liquid 20g, stirring at normal temperature 15min at 145 DEG C dry reaction 5min, obtain pretreatment doughnut~2；
（2）The preparation of rubber noise reduction layer
In order rubber, plastics, resin, auxiliary agent, filler, plasticizer and pretreatment doughnut~2 in mixer It adds in, 30 min of mixing at 120 DEG C~160 DEG C, acquired rubber compound is through high temperature tri-roll press machine slice, rolling mill roller temperature It spends for 110 DEG C to get to rubber noise reduction layer；
The rubber noise reduction layer is made of raw material as follows in parts by weight：100 parts of rubber；Thermoplastic compound 50 Part；Resin：40 parts, auxiliary agent：8 parts；Filler：100 parts；Plasticizer：40 parts；Pre-process doughnut~2：65 parts；
（3）The preparation of high noise reduction compound
It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out single side brush adhesive sticker, compound with sound-absorbing porous material layer, i.e., Obtain absorbing sound and lowering noise rubber composite.
In the present embodiment, step（1）Described in doughnut for polyamide doughnut, polytetrafluoroethylhollow hollow fiber And Polyethersulfone Hollow Fiber Plasma.Step（1）Described in surfactant be silane coupling agent KH560, silane coupling agent KH570 and silicon 69.Step（1）Described in the latex treatment fluid containing curing agent compound mixture for Heveatex and polychloroprene latex and urea formaldehyde. Step（2）Described in rubber be butadiene-styrene rubber, butyl rubber, chlorinated scoline and brombutyl.Step（2）The heat Plastic composite is plastic of poly vinyl acetate and polyvinyl alcohol.Step（2）The resin is terpenes and acrylic resin.Step （2）The auxiliary agent is antioxidant MB, antioxidant 264 and antioxidant 1076.Step（2）The filler is light calcium oxide and sulfuric acid Barium.Step（3）The sound-absorbing porous material layer is fibrofelt.
Embodiment 5
The invention discloses a kind of preparation methods of high noise reduction compound, include the following steps：
（1）Doughnut surface preparation
100g doughnuts are placed in homogenizer, add in the surfactant of 13g, after stirring at normal temperature 6min 12 min of dry reaction at 140 DEG C obtains pretreatment doughnut~1；
Above-mentioned 100g pretreatment doughnut~1 is handled as the latex in homogenizer, added in containing curing agent After liquid 30g, stirring at normal temperature 6min at 130 DEG C 10 min of dry reaction, obtain pretreatment doughnut~2；
（2）The preparation of rubber noise reduction layer
In order rubber, plastics, resin, auxiliary agent, filler, plasticizer and pretreatment doughnut~2 in mixer It adds in, 18 min of mixing at 130 DEG C, for acquired rubber compound through high temperature tri-roll press machine slice, rolling mill roller temperature is 113 DEG C to get to rubber noise reduction layer；
The rubber noise reduction layer is made of raw material as follows in parts by weight：100 parts of rubber；Thermoplastic compound 70 Part；Resin：20 parts, auxiliary agent：10 parts；Filler：150 parts；Plasticizer：24 parts；Pre-process doughnut~2：50 parts；
（3）The preparation of high noise reduction compound
It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out single side brush adhesive sticker, compound with sound-absorbing porous material layer, i.e., Obtain absorbing sound and lowering noise rubber composite.
In the present embodiment, step（1）Described in doughnut for polyester doughnut, polyvinylidene fluoride hollow fiber and Polyethersulfone Hollow Fiber Plasma.Step（1）Described in surfactant be dopamine, poly-dopamine and silicon 69.Step（1）Described in contain The latex treatment fluid for having curing agent is carboxylic styrene butadiene latex and polychloroprene latex and sulfur compounded mixture.Step（2）Described in rubber Glue is natural rubber, nitrile rubber, chlorinated scoline and brombutyl.Step（2）The thermoplastic compound is poly- Acrylic acid and polyvinyl alcohol.Step（2）The resin is terpenes and Petropols.Step（2）The auxiliary agent is anti-aging agent RD, prevents Old agent 4010NA and antioxidant 1076.Step（2）The filler is carbon black, white carbon and barium sulfate.Step（3）The porous suction Sound material layer is fibrofelt.
Embodiment 6
The invention discloses a kind of preparation methods of high noise reduction compound, include the following steps：
（1）Doughnut surface preparation
100g doughnuts are placed in homogenizer, add in the surfactant of 25g, after stirring at normal temperature 11min 23 min of dry reaction at 130 DEG C obtains pretreatment doughnut~1；
Above-mentioned 100g pretreatment doughnut~1 is handled as the latex in homogenizer, added in containing curing agent After liquid 68g, stirring at normal temperature 12min at 160 DEG C dry reaction 25min, obtain pretreatment doughnut~2；
（2）The preparation of rubber noise reduction layer
In order rubber, plastics, resin, auxiliary agent, filler, plasticizer and pretreatment doughnut~2 in mixer It adds in, 10~30 min of mixing at 130 DEG C, acquired rubber compound is through high temperature tri-roll press machine slice, rolling mill roller temperature For 120 DEG C to get to rubber noise reduction layer；
The rubber noise reduction layer is made of raw material as follows in parts by weight：100 parts of rubber；Thermoplastic compound 65 Part；Resin：21 parts, auxiliary agent：6 parts；Filler：220 parts；Plasticizer：15 parts；Pre-process doughnut~2：59 parts；
（3）The preparation of high noise reduction compound
It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out single side brush adhesive sticker, compound with sound-absorbing porous material layer, i.e., Obtain absorbing sound and lowering noise rubber composite.
In the present embodiment, step（1）Described in doughnut for polyester doughnut, polyvinylidene fluoride hollow fiber, Polyamide doughnut, polytetrafluoroethylhollow hollow fiber and Polyethersulfone Hollow Fiber Plasma.Step（1）Described in surfactant be more Bar amine, poly-dopamine, silane coupling agent KH560, silane coupling agent KH570 and silicon 69.Step（1）Described in contain curing agent Latex treatment fluid compounds mixture for carboxylic styrene butadiene latex, fourth cyanogen latex, Heveatex and polychloroprene latex and phenolic resin.Step （2）Described in rubber be natural rubber, nitrile rubber, butadiene-styrene rubber, butyl rubber, chlorinated scoline and butyl rubber bromide Glue.Step（2）The thermoplastic compound is polyacrylic acid, plastic of poly vinyl acetate and polyvinyl alcohol.Step（2）The tree Fat is terpene resin.Step（2）The auxiliary agent is anti-aging agent RD, antioxidant 4010NA, antioxidant MB, antioxidant 264 and antioxygen Agent 1076.Step（2）The filler is carbon black, white carbon, Strong oxdiative calcium and barium sulfate.Step（3）The sound-absorbing porous material Layer is fibrofelt.
Comparative example 1
Commercially available equivalent specifications felt.
Comparative example 2
Doughnut is not pre-processed, and 50 parts of dosage, remaining composite-material formula and step are same as Example 5.
In order to verify the technique effect obtained by the present invention, Examples 1 to 6 products obtained therefrom is tested respectively, it is specific to tie Fruit is as shown in table 1：
1 the performance test results of table
The foregoing is only a preferred embodiment of the present invention, not makees limitation in any form to the present invention；It is all The those of ordinary skill of the industry can be described in by specification and described above and swimmingly implement the present invention；It is but all familiar Professional and technical personnel without departing from the scope of the present invention, makes using disclosed above technology contents A little variation, modification and evolution equivalent variations, be the present invention equivalent embodiment；Meanwhile all realities according to the present invention Variation, modification and evolution of any equivalent variations that matter technology makees above example etc. still fall within the technology of the present invention Within the protection domain of scheme.

Claims (10)

1. a kind of preparation method of high noise reduction compound, it is characterised in that include the following steps：
（1）Doughnut surface preparation
100g doughnuts are placed in homogenizer, the surfactant of 10~30g of addition, after 2~15min of stirring at normal temperature 5~30 min of dry reaction at 100 DEG C~150 DEG C obtains pretreatment doughnut~1；
Above-mentioned 100g pretreatments doughnut~1 is placed in homogenizer, adds in the latex treatment fluid 20 containing curing agent After~80g, 2~15min of stirring at normal temperature at 120 DEG C~170 DEG C 5~30 min of dry reaction, obtain pretreatment doughnut ~2；
（2）The preparation of rubber noise reduction layer
In order rubber, thermoplastic compound, resin, auxiliary agent, filler, plasticizer and pretreatment doughnut in mixer ~2 add in, 10~30 min of mixing at 120 DEG C~160 DEG C, and acquired rubber compound is through high temperature tri-roll press machine slice, calendering Machine roller temperature is for 90 DEG C~130 DEG C to get to rubber noise reduction layer；
The rubber noise reduction layer is made of raw material as follows in parts by weight：100 parts of rubber；Thermoplastic compound 50~100 Part；Resin：10~40 parts, auxiliary agent：1~15 part；Filler：100~300 parts；Plasticizer：10~40 parts；It pre-processes hollow Fiber~2：30~100 parts；
（3）The preparation of high noise reduction compound
It will be above-mentioned（2）Gained rubber noise reduction layer compound carries out Double-side brush adhesive sticker, compound with high temperature resistant sound insulation film layers on one side, In addition one side and sound-absorbing porous material layer are compound to get to high noise reduction compound for rubber noise reduction layer.
2. the preparation method of high noise reduction compound according to claim 1, it is characterised in that：Step（1）Described in it is hollow Fiber for polyester doughnut, polyvinylidene fluoride hollow fiber, polyamide doughnut, polytetrafluoroethylhollow hollow fiber and/or One or more of Polyethersulfone Hollow Fiber Plasma.
3. the preparation method of high noise reduction compound according to claim 2, it is characterised in that：Step（1）Described in surface Activator is dopamine, poly-dopamine, silane coupling agent KH560, silane coupling agent KH570 and/or one kind in silicon 69 or two Kind or more.
4. the preparation method of the high noise reduction compound according to Claims 2 or 3, it is characterised in that：Step（1）Described in contain The latex treatment fluid for having curing agent is carboxylic styrene butadiene latex, fourth cyanogen latex, Heveatex and/or one kind in polychloroprene latex or two Kind or more with sulphur or phenolic resin compounding mixture.
5. the preparation method of high noise reduction compound according to claim 4, it is characterised in that：Step（2）Described in rubber For one kind in natural rubber, nitrile rubber, butadiene-styrene rubber, butyl rubber, chlorinated scoline and/or brombutyl or It is two or more.
6. the preparation method of high noise reduction compound according to claim 5, it is characterised in that：Step（2）The thermoplasticity Compound is less than 120 DEG C of compound for softening point, which is polyacrylic acid, plastic of poly vinyl acetate and/or poly- second It is two or more in enol.
7. the preparation method of high noise reduction compound according to claim 6, it is characterised in that：Step（2）The resin is One or more of terpene resin, Petropols, epoxy resin and acrylic resin.
8. the preparation method of high noise reduction compound according to claim 7, it is characterised in that：Step（2）The resin is Terpene resin；Step（2）The auxiliary agent is anti-aging agent RD, antioxidant 4010NA, antioxidant MB, antioxidant 264 and/or antioxidant One or more of 1076.
9. the preparation method of high noise reduction compound according to claim 8, it is characterised in that：Step（2）The filler is One or more of carbon black, white carbon, Strong oxdiative calcium and/or barium sulfate.
10. the preparation method of high noise reduction compound according to claim 9, it is characterised in that：Step（3）The porous suction Sound material layer is fibrofelt.
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CN107973943A (en) * 2017-10-20 2018-05-01 广东信力科技股份有限公司 A kind of heat conduction soundproof rubber piece and preparation method thereof
CN108129715B (en) * 2017-11-29 2021-03-23 国网湖南省电力有限公司 Flexible sound insulation material and preparation method and application thereof
WO2020107365A1 (en) * 2018-11-30 2020-06-04 Henkel Ag & Co. Kgaa Noise source and method of noise reduction for noise source
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CN113968055A (en) * 2021-09-09 2022-01-25 宏岳塑胶集团股份有限公司 Special flame-retardant sound-insulation composite material for pipeline and preparation method and application thereof

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