CN1318458A - Production process of outdoor sound absorbing board - Google Patents
Production process of outdoor sound absorbing board Download PDFInfo
- Publication number
- CN1318458A CN1318458A CN 01107164 CN01107164A CN1318458A CN 1318458 A CN1318458 A CN 1318458A CN 01107164 CN01107164 CN 01107164 CN 01107164 A CN01107164 A CN 01107164A CN 1318458 A CN1318458 A CN 1318458A
- Authority
- CN
- China
- Prior art keywords
- mortar
- sound absorbing
- water
- foam
- absorbing board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The outdoor sound absorbing board has netted and foamed polyurethane skeleton and soaked mortar to wrap the combustible foamed material. The mortar soaked foamed material is extruded to remove redundant mortar before solidification. The mortar consists of inorganic water coagulated material, fine aggregate, aqueous polymer, water reducing agent, additive and water. The sound absorbing board has high sound absorbing effect, good fire retarding property, excellent weatherability, small specific weight and excellent mechanical performance, so that it is suitable for use to reduce noise in various fields, such as airport, railway, express way, etc.
Description
The invention belongs to field of environment protection, specifically is a kind of manufacture method of outdoor sound absorbing board.
At present, aircraft, train and noise pollution that automobile causes are the problems that at present domestic and international technos is extremely paid close attention to.In order to reduce this type of noise pollution, general all on the airport, speedway, urban traffic thoroughfare and other place that need reduce noise pollution settle or set up the sound barrier wall.The core of sound barrier wall is the manufacturing of acoustical board.At present both at home and abroad acoustical board adopts materials such as glass fiber, mineral fibers and polyurethane foam as absorbent treatment morely, and with the metal sheet of porous, plastic plate etc. as panel.For example U.S. Pat 4057123 introductions are that nuclear is made acoustical board with glass fibre cotton, and US4207964 makes the core of acoustical board with mineral wool, glass wool and sponge; US4830140,5047120C and US6158176 have the core of mineral wool as acoustical board.Chinese patent 98214491 (application number) is also introduced the sound insulation acoustical board that is formed by sound proof member and sound absorption unit construction.The complex structure that these acoustical boards have, what have costs an arm and a leg, and can only be used for indoor mostly.
Another kind of method is with inorganic water-setting material, and for example cement, gypsum, magnesia, lime and mixed coal ash etc. are made the plate of loose structure.This sheet material can be used as the heat-preservation and sound-absorption plate.For example application number is the method that 91103917 Chinese patent water gel material adopts physical blowing, and without foaming agent, and mix with base-material the foaming back earlier.Can make proportion in this way is 50-800Kg/m
3Plate, its sound absorption coefficient reaches 0,092.U.S. Pat 4042745 is also used inorganic water-setting material, for example common silicate cement, calcium aluminate and selenite cement etc. add aglite, and auxiliary agents such as surfactant are through mixing the mortar of foaming, this mortar is poured into curing molding in the mould, is built into plate again and gets acoustical board.Its noise reduction coefficient NRC (Noisereduction coefficient) can reach 0,55.This class acoustical board anti-flammability and good weatherability, mechanical property is also good, and price is lower, can be used for indoor and outdoor and makes the sound absorption construction material.But the sound absorbing capabilities of this class material (sound absorption coefficient) is lower, unstable properties (because aperture and these two indexs that influence sound absorbing capabilities of surperficial percent opening are wayward).This has all influenced the use of this class material.
The objective of the invention is in order to overcome the defective of prior art, a kind of manufacture method of outdoor sound absorbing board is provided for the public, this method technology is simple, easy to operate, can be manufactured with the acoustic energy that is beneficial to incident and change heat energy into, reduce the reflection of sound greatly, sound absorption coefficient is higher, simultaneously its mechanical property and the also outdoor preferably acoustical board of fire resistance.
The objective of the invention is to realize by following technical proposals.
The manufacture method of outdoor sound absorbing board of the present invention is that to adopt reticulated polyurethane foam be skeleton, mortar is infiltrated foam and the incendivity of foam is partly wrapped up, and the foam of mortar has been soaked in extruding then, and unnecessary mortar is extruded, solidify product.Product can keep IPN (passing through) loose structure of reticulated polymer foam, and this structure helps changing the acoustic energy of incident into heat energy, reduces the reflection of sound greatly.The sound absorption coefficient of the sheet material of making like this is higher, and its mechanical property and fire resistance are also better simultaneously.
In the such scheme, described polyurethane foam is a percent opening greater than 90% reticulated polymer foam, is preferably percent opening greater than 98% reticulated polymer foam, and cell diameter is the scope of 2～8mm, and polyurethane foam can be a polyester-type, also can be polyether-type.Described mortar is made up of inorganic water-setting material, fines, waterborne polymeric, water reducing agent, additive, water etc.
Spendable inorganic water-setting material has portland cement, Portland cement, high alumina cement, magnesia or the like in the inorganic water-setting material mortar that the present invention adopts.The present invention uses quartz powder, the fines that the perlite equigranular is less, and its granularity generally can be 100～2000 orders.In addition, in mortar, also will add waterborne polymeric, as polyvinyl formal, Sodium Polyacrylate, hydroxyethylcellulose, carboxymethyl cellulose etc., and formaldehyde condensation products of sulfonated aromatic thing, wooden calcium sulfonate etc. are made water reducing agent, be used for regulating the hardening time of mortar, the weight ratio of each component of mortar is: inorganic water-setting material: fines: waterborne polymeric: water reducing agent: additive: water=100: 20～150: 0.1～5: 0～1: 0～5: 50～160.
The above-mentioned composition mixing is uniformly dispersed, makes mortar.Then mortar is soaked and invade in the reticulated polyurethane foam, unnecessary mortar is extruded by the method for extruding.The foam that will soak mortar again places room temperature after 24～48 hours, immerses in the water to solidify.Promptly get the acoustical board of pore structure, suck slurry by the control foam what with the specific gravity control of acoustical board at 300～900Kg/m
3
The acoustical board that the present invention is made has that acoustically effective is good, fire-retardant, weather resistance is good, proportion is little, the characteristics of good mechanical performance.Being applicable to that airport, railway, speedway, urban traffic thoroughfare and other need reduce under the ambient conditions of noise uses.
The invention is further illustrated by the following examples, and the present invention is not limited only to described embodiment.
Embodiment one
Get 424# Portland cement 1000 grams, crushed crude pearlite 500 grams, 10% polyvinyl formal solution, 100 grams, cement water reducing agent (wooden calcium sulfonate of sulfonated aromatic thing) 5 grams, water 950 grams, above-mentioned component is disperseed to mix in the device that the dispersed with stirring device is housed promptly to get required mortar, to be of a size of 300 * 200 * 25mm reticulated polyurethane foam invades foam and the incendivity of foam is partly wrapped up, the foam of mortar has been invaded in extruding then, unnecessary mortar is extruded, be placed on again and solidify after 48 hours under the room temperature, the water of putting into 20 ℃ solidified 20 days, and taking out dry must sound absorption coefficient be 0.69 high strength acoustical board.
Embodiment two
Get 500# portland cement 1000 grams, crushed crude pearlite 800 grams, 8% polyacrylic acid sodium water solution, 75 gram d, cement water reducing agent (formaldehyde condensation products of sulfonated aromatic thing) 8 grams, water 950 grams, above-mentioned component is disperseed to mix in the device that the dispersed with stirring device is housed promptly to get required mortar, to be of a size of 300 * 200 * 25mm reticulated polyurethane foam invades foam and the incendivity of foam is partly wrapped up, the foam of mortar has been invaded in extruding then, unnecessary mortar is extruded, be placed on again and solidify after 50 hours under the room temperature, the water of putting into 23 ℃ solidified 19 days, and taking out dry must sound absorption coefficient be 0.65 high strength acoustical board.
Embodiment three
Get 625# Portland cement 1000 grams, crushed crude pearlite 1500 grams, the 2% sanlose aqueous solution, 1000 grams, water 300 grams, above-mentioned component is disperseed to mix in the device that the dispersed with stirring device is housed promptly to get required mortar, to be of a size of 300 * 250 * 25mm reticulated polyurethane foam immerses foam and the incendivity of foam is partly wrapped up, the foam of mortar has been soaked in extruding then, unnecessary mortar is extruded, be placed on again and solidify after 50 hours under the room temperature, the water of putting into 22 ℃ solidified 21 days, and taking out dry must sound absorption coefficient be 0.75 high strength acoustical board.
Embodiment four
Get 525# Portland cement 1000 grams, crushed crude pearlite 700 grams, 10% polyvinyl formal solution, 400 grams, water 450 grams, wooden calcium sulfonate's 8 grams.Above-mentioned component is disperseed to mix in the device that the dispersed with stirring device is housed promptly to get required mortar, to be of a size of 300 * 400 * 25mm reticulated polyurethane foam immerses foam and the incendivity of foam is partly wrapped up, the foam of mortar has been soaked in extruding then, unnecessary mortar is extruded, be placed on again and solidify after 3 days under the room temperature, put into water and solidified 18 days, taking out dry must sound absorption coefficient be 0.72 high strength acoustical board.
Embodiment five
Get 500# high alumina cement 1000 grams, quartz powder 350 grams, 8% polyacrylic acid sodium water solution, 75 grams, water 1200 grams, cement water reducing agent 8 grams, sodium sulphate 8 grams, wooden calcium sulfonate's 8 grams.Above-mentioned component is disperseed to mix in the device that the dispersed with stirring device is housed promptly to get required mortar, to be of a size of 300 * 300 * 25mm reticulated polyurethane foam immerses foam and the incendivity of foam is partly wrapped up, the foam of mortar has been soaked in extruding then, unnecessary mortar is extruded, be placed under the room temperature again and solidify after 1 day, put into water and solidified 25 days, taking out dry must sound absorption coefficient be 0.62 high strength acoustical board.
Condition of cure in the foregoing description also can adopt heats to shorten hardening time.Cement water reducing agent has many kinds, and the present invention all can adopt, and does not just exemplify one by one at this.
Claims (7)
1, the manufacture method of outdoor sound absorbing board is characterized in that it being that to adopt reticulated polyurethane foam be skeleton, mortar is infiltrated foam and the incendivity of foam is partly wrapped up, and the foam of mortar has been soaked in extruding then, and unnecessary mortar is extruded, solidify product.
2, the manufacture method of outdoor sound absorbing board according to claim 1 is characterized in that described reticulated polyurethane foam is a percent opening greater than 90% reticulated polymer foam, is preferably percent opening greater than 98% reticulated polymer foam, and cell diameter is 2～8mm.
3, the manufacture method of outdoor sound absorbing board according to claim 1 and 2, it is characterized in that described mortar is made up of inorganic water-setting material, fines, waterborne polymeric, water reducing agent, additive, water, wherein, the weight ratio of each component of mortar is: inorganic water-setting material: fines: waterborne polymeric: water reducing agent: additive: water=100: 20～150: 0.1～5: 0～1: 0～5: 50～160.
4, the manufacture method of outdoor sound absorbing board according to claim 3 is characterized in that described inorganic water-setting material has portland cement, Portland cement, high alumina cement, magnesia.
5, the manufacture method of outdoor sound absorbing board according to claim 3 is characterized in that described fines is quartz powder or perlite, and its granularity is 100～2000 orders.
6, the manufacture method of outdoor sound absorbing board according to claim 3 is characterized in that described waterborne polymeric is polyvinyl formal, Sodium Polyacrylate, hydroxyethylcellulose, carboxymethyl cellulose.
7, the manufacture method of outdoor sound absorbing board according to claim 3 is characterized in that described water reducing agent is formaldehyde condensation products, the wooden calcium sulfonate of sulfonated aromatic thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107164 CN1318458A (en) | 2001-02-23 | 2001-02-23 | Production process of outdoor sound absorbing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107164 CN1318458A (en) | 2001-02-23 | 2001-02-23 | Production process of outdoor sound absorbing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1318458A true CN1318458A (en) | 2001-10-24 |
Family
ID=4656114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01107164 Pending CN1318458A (en) | 2001-02-23 | 2001-02-23 | Production process of outdoor sound absorbing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1318458A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690096A (en) * | 2011-03-22 | 2012-09-26 | 贵阳铝镁设计研究院有限公司 | Inorganic-organic composite porous sound-absorbing material |
| CN102849995A (en) * | 2011-06-30 | 2013-01-02 | 郭云驰 | Cement-based perlite composite sound barrier |
| CN102849994A (en) * | 2011-06-30 | 2013-01-02 | 郭云驰 | Cement-based perlite composite sound barrier, and its preparation method |
| CN103147520A (en) * | 2013-03-13 | 2013-06-12 | 南昌航空大学 | Method for fabricating light sound absorption and insulation core board with waste slag powder modified micro-foam grains |
-
2001
- 2001-02-23 CN CN 01107164 patent/CN1318458A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690096A (en) * | 2011-03-22 | 2012-09-26 | 贵阳铝镁设计研究院有限公司 | Inorganic-organic composite porous sound-absorbing material |
| CN102849995A (en) * | 2011-06-30 | 2013-01-02 | 郭云驰 | Cement-based perlite composite sound barrier |
| CN102849994A (en) * | 2011-06-30 | 2013-01-02 | 郭云驰 | Cement-based perlite composite sound barrier, and its preparation method |
| CN103147520A (en) * | 2013-03-13 | 2013-06-12 | 南昌航空大学 | Method for fabricating light sound absorption and insulation core board with waste slag powder modified micro-foam grains |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101628802B (en) | Composite inorganic heat insulation and waterproof mortar and application thereof | |
| CN101314536B (en) | Energy-conservation environment-friendly type EPS light aggregate concrete and manufacture method thereof | |
| CN100337967C (en) | Superlight vitrification micropearl morttar | |
| WO2008130107A1 (en) | Rapid set cement foam and the method for preparing the same | |
| CN101786841B (en) | Inorganic composite phase-change energy storage foamed insulation board and preparation method thereof | |
| CN101318796A (en) | Nano-additive agent modified high-strength wall self-thermal insulation material and preparing method thereof | |
| CN103664122A (en) | Novel light-weight porous heat-insulating material and preparation method thereof | |
| CN103553487B (en) | A kind of Composite lightweight thermal insulation material and preparation method thereof | |
| CN102276202A (en) | Three-component thermal-insulation, fire-proof and sound-insulation material and preparation method thereof | |
| CN102515664A (en) | Low-cost ultra low density foam concrete | |
| CN2851396Y (en) | Polystyrene board sandwiched steel wire mesh building thermal-insulating energy-saving board and energy-saving board assembly | |
| CN1318458A (en) | Production process of outdoor sound absorbing board | |
| CN1169739C (en) | Sound-absorbing material for subway and its preparing process | |
| CN102408249B (en) | Silicate-based porous sound-absorbing material used in rail traffic and preparation method thereof | |
| CN111825414A (en) | High-temperature-resistant green multi-layer fireproof plate and manufacturing method thereof | |
| CN115321896A (en) | Novel sound insulation mortar | |
| CN104496309A (en) | Method for preparing underground railway track acoustical board | |
| CN1322208C (en) | Construction thermal insulation energy-saving plate with polystyrene panel sandwiched steel wire mesh core | |
| CN113550243A (en) | Combined road sound insulation screen and preparation method thereof | |
| CN107460961A (en) | A kind of high-tensile thermal insulating composite panel and its manufacture method | |
| Sejdinović | Modern thermal insulation and sound insulation materials | |
| CN112010599A (en) | Modified polyphenyl granule light concrete and preparation method thereof | |
| CN205421604U (en) | Multifunctional wall body for green building | |
| CN114075058B (en) | Bamboo aggregate lightweight concrete sound insulation wall based on modification treatment | |
| CN1183392A (en) | Thermal insulation (organic silicon) wall composite material and its producing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |