CN107474524A - Polyurethane composite acoustic material of vinal enhancing and preparation method thereof - Google Patents
Polyurethane composite acoustic material of vinal enhancing and preparation method thereof Download PDFInfo
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- CN107474524A CN107474524A CN201710637480.6A CN201710637480A CN107474524A CN 107474524 A CN107474524 A CN 107474524A CN 201710637480 A CN201710637480 A CN 201710637480A CN 107474524 A CN107474524 A CN 107474524A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
- C08G18/3278—Hydroxyamines containing at least three hydroxy groups
- C08G18/3281—Hydroxyamines containing at least three hydroxy groups containing three hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6688—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2350/00—Acoustic or vibration damping material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention belongs to the acoustics packaging material of sound-absorbing material design field, specifically a kind of polyurethane composite acoustic material of vinal enhancing and preparation method thereof.The component that the material is matched by following mass fractions forms：60 parts of PPG 330N, 40 parts of PPGs, 3630,35 parts of 4,4 methyl diphenylene diisocyanates, 3 parts of foaming agent deionized waters, 3 parts of foaming agent triethanolamines, 0.05 part of catalyst A1,1 part of catalyst A33,1.8 parts of foam stabilisers, 0.1~0.6 part of vinal；The present invention is polyurethane composite acoustic material of vinal enhancing of a kind of sound absorption characteristics in low-frequency range that can improve polyurethane composite acoustic packaging material and preparation method thereof, solves the problems, such as absorption difference of the existing sound-absorbing material to all-bottom sound.
Description
Technical field
The invention belongs to the acoustics packaging material of sound-absorbing material design field, specifically a kind of vinal increases
Strong polyurethane composite acoustic material and preparation method thereof.
Background technology
With greatly developing for all departments such as modern industry, construction industry and traffic transport industry, noise pollution is serious
It has impact on health, work and the life of people.In addition with the continuous improvement of people's living standards, to the demand of automobile also from most
First walking-replacing tool is gradually increasing as comfortable mobile space, so automobile its own mechanical performance and comfort property are just into weighing
The major criterion of automotive quality, wherein automobile noise are exactly a major criterion.
Car acpistocs are packed, and refer to the summation of all kinds of sound absorption and insulation seal members relevant with auto NVH performance in the narrow sense,
Refer mainly to for the acoustic element that reduces air-borne sound acoustic pressure and solve it and control noise problem on propagation path, in sealing and
Sound absorption performance etc. carries out Noise measarement.Car acpistocs packaging has important to internal car noise control and in-car acoustic feature
Influence, car acpistocs are packaged in while meet consumer to in-car riding comfort requirement, can adjust the acoustic pressure of in-car
Level, sound quality.Therefore, be packaged in using acoustics in noise transmission approach to control noise, have become it is a kind of economical, easy,
In-car noise-reduction method easy to implement.
Polyurethane foam is a kind of new acoustics packaging material.When the surface of sound wave incident to sound-absorbing porous material,
Acoustic wave segment is reflected, and acoustic wave segment is penetrated in material internal micropore, excites air in hole to be vibrated with grain, air and grain
Between frictional resistance acoustic energy is constantly converted into heat energy and is consumed；Heat exchange between air and grain also consumes part sound
Can, so as to reach the purpose of sound absorption.Polyurethane foam have that product quality is light, heat-insulating sound-insulating, comfortableness are good, resilience is good plus
Work convenient formation, security and sound absorbing capabilities are good, low cost and other advantages, and can be by adjusting the raw material of polyurethane material, matching somebody with somebody
Side etc. come adapt to the specific performance of product requirement and application characteristic.The influence factor of porous material sound absorbing capabilities mainly with material
It is porosity, more relevant than flow resistance, structure factor, thickness, cavity, armour layer, use environment etc., and high frequency sound absorption effect is good, it is low
Frequency sound absorption effect is poor.Increase material thickness can improve absorbent properties of the porous material to all-bottom sound, but simply increase material
Material thickness can cause the increase of material weight, cost, can not meet the requirement of automotive light weight technology.Therefore, material thickness is not being changed
While spending, increase material low frequency absorption characteristic is particularly important.
The content of the invention
The invention provides a kind of sound absorption characteristics that can improve polyurethane composite acoustic packaging material in low-frequency range
Vinal enhancing polyurethane composite acoustic material and preparation method thereof, solve existing sound-absorbing material to all-bottom sound
Absorption difference the problem of.
Technical solution of the present invention is described with reference to the drawings as follows：
A kind of polyurethane composite acoustic material of vinal enhancing, the group that the material is matched by following mass fractions
It is grouped into：
Described vinal is 5~10mm.
A kind of preparation method of the polyurethane composite acoustic material of vinal enhancing, this method include following step
Suddenly：
Step 1: by 60 parts of PPG 330N, 40 parts of PPGs, 3630,3 parts of foaming agent deionized waters, 3 parts
Foaming agent triethanolamine, 0.05 part of catalyst A1,1 part of catalyst A33 and 1.8 parts of foam stabiliser silicone oil are mixed in plastic cup
In, use electric blender to be stirred with 1200rpm speed at room temperature, stirring obtains mixture I in 5~8 minutes；
Step 2: 0.1~0.6 part of vinal is added in step 1 in obtained mixture I, use again
Electric blender is sufficiently stirred 5~8 minutes with 1200rpm speed and obtains mixture II；
Step 3: 35 part of 4,4 methyl diphenylene diisocyanate is added in step 2 in the mixture II of gained；
Step 4: the mixture III obtained in step 3 is quickly poured into rectangular mould, mold closing is carried out at room temperature
Foaming, after the process continues 3~5 minutes, mould is put into 50 DEG C of insulating boxs and solidified 2 hours, continues to solidify then at room temperature
24 hours.
Beneficial effects of the present invention are：
1st, polyurethane composite acoustic material of a kind of vinal enhancing of the present invention and preparation method thereof obtains
To composite sound-absorbing material average sound absorption coefficient be up to 0.564；
2nd, polyurethane composite acoustic material of a kind of vinal enhancing of the present invention and preparation method thereof is logical
Addition vinal is crossed to improve polyurethane low frequency absorption characteristic, preparation cost is low, lightweight, suitable for automotive light weight technology
Developing direction.
3rd, the present invention can make fiber equal in polyether polyatomic alcohol component from the vinal that length is 5~10mm
It is even scattered, agglomeration does not occur, and then fiber is also can be uniformly dispersed among the induration ultimately formed, do not influence material
Foamable reaction.
Brief description of the drawings
Fig. 1 is a kind of preparation method of the polyurethane composite acoustic material of vinal enhancing of the present invention
FB(flow block)；
Fig. 2 is polyurethane composite acoustic material of a kind of vinal enhancing of the present invention and preparation method thereof
The acoustic absorptivity of middle embodiment and frequency relation curve figure.
Embodiment
A kind of polyurethane composite acoustic material of vinal enhancing, the group that the material is matched by following mass fractions
It is grouped into：
Described foam stabiliser is silicone oil.
Described vinal is 5~10mm.
A described mass fraction is a mass unit, i.e. gram, kilogram.
Refering to Fig. 1, a kind of preparation method of the polyurethane composite acoustic material of vinal enhancing, this method includes
Following steps：
Step 1: by 60 parts of PPG 330N, 40 parts of PPGs, 3630,3 parts of foaming agent deionized waters, 3 parts
Foaming agent triethanolamine, 0.05 part of catalyst A1,1 part of catalyst A33 and 1.8 parts of foam stabiliser silicone oil are mixed in plastic cup
In, use electric blender to be stirred with 1200rpm speed at room temperature, stirring obtains mixture I in 5~8 minutes；
Step 2: 0.1~0.6 part of vinal is added in step 1 in obtained mixture I, use again
Electric blender is sufficiently stirred 5~8 minutes with 1200rpm speed and obtains mixture II；
Step 3: 35 part of 4,4 methyl diphenylene diisocyanate is added in step 2 in the mixture II of gained；
Step 4: the mixture III obtained in step 3 is quickly poured into rectangular mould, can be in 5 seconds, then
Foaming inclosed moldses are carried out at room temperature, after the process continues 3~5 minutes, mould are put into 50 DEG C of insulating boxs and solidified 2 hours,
Continue solidification 24 hours then at room temperature.
Described room temperature can be 20 DEG C.
Embodiment
A kind of polyurethane composite acoustic material of vinal enhancing, the group that the material is matched by following mass fractions
It is grouped into：
Described vinal is 5~10mm.
A kind of preparation method of the polyurethane composite acoustic material of vinal enhancing, this method include following step
Suddenly：
Step 1: by 6 parts of components and the identical formula of content：60g PPGs 330N, 40g PPG
3630,3g foaming agent deionized waters, 3g foaming agent triethanolamines, 0.05g catalyst A1,1g catalyst A33 and 1.8g foams are steady
Determine agent silicone oil to be mixed in respectively in 6 identical plastic cups, use electric blender to be carried out with 1200rpm speed at room temperature
Stirring, stirring obtain mixture I in 5~8 minutes；
Step 2: 0.1g, 0.2g, 0.3g, 0.4g, 0.5g and 0.6g vinal are separately added into step 1
In 6 obtained mixtures I, use electric blender to be sufficiently stirred with 1200rpm speed again and obtain within 5~8 minutes six kinds not
Same mixture II；
Step 3: 6 parts g grams 4,4 methyl diphenylene diisocyanates are added to 6 mixtures II of gained in step 2
In, use electric blender to be sufficiently stirred with 3000rpm speed until uniformly, obtaining mixture III；
Step 4: the mixture III obtained in step 3 is quickly poured into 6 150*150*60mm respectively2Cuboid mould
In tool, foaming inclosed moldses are carried out at room temperature, after the process continues 3~5 minutes, mould are put into 50 DEG C of insulating boxs and solidifies 2
Hour, continue solidification 24 hours then at room temperature.
It is the acoustic absorptivity and frequency relation curve figure for meeting acoustics packaging material in embodiment shown in figure refering to Fig. 2.
As shown in FIG., the addition of vinal has the raising of star to the acoustic absorptivity of low frequency, with polyethylene
The increase of alcohol fiber addition, acoustic absorptivity is in downward trend after first rising, when vinal addition is 0.2g,
The acoustic absorptivity of low frequency improves at most, and average sound absorption coefficient reaches 0.564.
Experiment proves that a kind of component of polyurethane composite acoustic material of vinal enhancing and content are respectively 60
Part PPG 330N, 40 parts of PPGs, 3630,35 parts of 4,4 methyl diphenylene diisocyanates, 3 parts of foaming agents go from
Sub- water, 3 parts of foaming agent triethanolamines, 0.05 part of catalyst A1,1 part of catalyst A33,1.8 parts of foam stabiliser silicone oil and 0.1~
It is best of breed composition formula during 0.6 part of vinal, acoustically effective can be obtained by more using above-mentioned manufacture method
Good acoustical material.
From the foregoing, it will be observed that a kind of polyurethane composite acoustic material of vinal enhancing of the present invention is by poly- ammonia
Ester with vinal is mutually compound is prepared.Such a sound-absorbing material has excellent low frequency absorption performance.It is of the present invention
The polyurethane composite acoustic material and preparation method thereof of vinal enhancing a kind of be intended to not increase the same of material thickness
When, improve its effect of low-frequency sound absorption.
Claims (3)
1. a kind of polyurethane composite acoustic material of vinal enhancing, it is characterised in that the material is by following quality point
The component composition of number proportioning：
A kind of 2. polyurethane composite acoustic material of vinal enhancing according to claim 1, it is characterised in that
Described vinal length is 5~10mm.
3. a kind of preparation method of the polyurethane composite acoustic material of vinal enhancing according to claim 1,
Characterized in that, this method comprises the following steps：
Step 1: 60 parts of PPG 330N, 40 parts of PPGs, 3630,3 parts of foaming agent deionized waters, 3 parts are foamed
Agent triethanolamine, 0.05 part of catalyst A1,1 part of catalyst A33 and 1.8 parts of foam stabiliser silicone oil are mixed in plastic cup,
Electric blender is used to be stirred with 1200rpm speed at room temperature, stirring obtains mixture I in 5~8 minutes；
Step 2: 0.1~0.6 part of vinal is added in step 1 in obtained mixture I, again using electronic
Mixer is sufficiently stirred 5~8 minutes with 1200rpm speed and obtains mixture II；
Step 3: 35 part of 4,4 methyl diphenylene diisocyanate is added in step 2 in the mixture II of gained；
Step 4: the mixture III obtained in step 3 is quickly poured into rectangular mould, foaming inclosed moldses are carried out at room temperature,
After the process continues 3~5 minutes, mould is put into 50 DEG C of insulating boxs and solidified 2 hours, it is small to continue solidification 24 then at room temperature
When.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637480.6A CN107474524B (en) | 2017-07-31 | 2017-07-31 | Polyvinyl alcohol fiber reinforced polyurethane composite acoustic material and preparation method thereof |
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| CN201710637480.6A CN107474524B (en) | 2017-07-31 | 2017-07-31 | Polyvinyl alcohol fiber reinforced polyurethane composite acoustic material and preparation method thereof |
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| CN107474524A true CN107474524A (en) | 2017-12-15 |
| CN107474524B CN107474524B (en) | 2020-11-03 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231053A (en) * | 2018-03-13 | 2018-06-29 | 吉林大学 | A kind of acoustics packaging material with convex closure form and preparation method thereof |
| CN108269565A (en) * | 2018-03-13 | 2018-07-10 | 吉林大学 | With ribbed Bionic conflguration non-smooth surface polyurethane foam board and preparation method thereof |
| CN108281132A (en) * | 2018-03-13 | 2018-07-13 | 吉林大学 | With Cylindrical Pit bionic non-smooth surface polyurethane foam board and preparation method |
| CN108281133A (en) * | 2018-03-13 | 2018-07-13 | 吉林大学 | With spherical pit bionic non-smooth surface polyurethane foam board and preparation method |
| CN108346420A (en) * | 2018-03-13 | 2018-07-31 | 吉林大学 | A kind of arcuation bionic non-smooth surface polyurethane foam board and preparation method thereof |
| CN108424509A (en) * | 2018-03-13 | 2018-08-21 | 吉林大学 | Bionic non-smooth surface polyurethane foam board preparation method based on Asio otus wing table |
| CN108676139A (en) * | 2018-06-12 | 2018-10-19 | 常州天晟新材料研究院有限公司 | A kind of sqouynd absorption lowering noise sound insulation polyurethane foamed material and preparation method thereof, application |
| CN108912664A (en) * | 2018-07-20 | 2018-11-30 | 苏州华龙化工有限公司 | A kind of preparation method of modified glass cotton enhancing sound-absorbing material |
| CN109232855A (en) * | 2018-07-10 | 2019-01-18 | 苏州华龙化工有限公司 | A kind of preparation method of the compound porous sound-absorbing material of glass fibre |
| CN110229498A (en) * | 2019-06-17 | 2019-09-13 | 韧泉智能科技(上海)有限公司 | A kind of preparation method and application of acoustical material |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231053A (en) * | 2018-03-13 | 2018-06-29 | 吉林大学 | A kind of acoustics packaging material with convex closure form and preparation method thereof |
| CN108269565A (en) * | 2018-03-13 | 2018-07-10 | 吉林大学 | With ribbed Bionic conflguration non-smooth surface polyurethane foam board and preparation method thereof |
| CN108281132A (en) * | 2018-03-13 | 2018-07-13 | 吉林大学 | With Cylindrical Pit bionic non-smooth surface polyurethane foam board and preparation method |
| CN108281133A (en) * | 2018-03-13 | 2018-07-13 | 吉林大学 | With spherical pit bionic non-smooth surface polyurethane foam board and preparation method |
| CN108346420A (en) * | 2018-03-13 | 2018-07-31 | 吉林大学 | A kind of arcuation bionic non-smooth surface polyurethane foam board and preparation method thereof |
| CN108424509A (en) * | 2018-03-13 | 2018-08-21 | 吉林大学 | Bionic non-smooth surface polyurethane foam board preparation method based on Asio otus wing table |
| CN108676139A (en) * | 2018-06-12 | 2018-10-19 | 常州天晟新材料研究院有限公司 | A kind of sqouynd absorption lowering noise sound insulation polyurethane foamed material and preparation method thereof, application |
| CN109232855A (en) * | 2018-07-10 | 2019-01-18 | 苏州华龙化工有限公司 | A kind of preparation method of the compound porous sound-absorbing material of glass fibre |
| CN108912664A (en) * | 2018-07-20 | 2018-11-30 | 苏州华龙化工有限公司 | A kind of preparation method of modified glass cotton enhancing sound-absorbing material |
| CN108912664B (en) * | 2018-07-20 | 2021-05-07 | 北京佳美未来科技有限公司 | Preparation method of modified glass wool reinforced sound absorption material |
| CN110229498A (en) * | 2019-06-17 | 2019-09-13 | 韧泉智能科技(上海)有限公司 | A kind of preparation method and application of acoustical material |
| CN110229498B (en) * | 2019-06-17 | 2021-05-18 | 韧泉智能科技(上海)有限公司 | Preparation method and application of acoustic material |
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