CN1273695C - Mineral wool sound-absorbing board and preparing method thereof - Google Patents
Mineral wool sound-absorbing board and preparing method thereof Download PDFInfo
- Publication number
- CN1273695C CN1273695C CN 03153762 CN03153762A CN1273695C CN 1273695 C CN1273695 C CN 1273695C CN 03153762 CN03153762 CN 03153762 CN 03153762 A CN03153762 A CN 03153762A CN 1273695 C CN1273695 C CN 1273695C
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- Prior art keywords
- mineral wool
- weight portion
- sound absorption
- weight portions
- absorption board
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention discloses a mineral cotton sound absorbing board and a preparation method thereof. A raw material of the mineral cotton sound absorbing board is composed of 75 to 85 weight shares of granulated cotton, 1 to 7 weight shares of starch, 6 to 12 weight shares of attapulgite clay, 1 to 5 weight shares of modified fiber and 1 to 5 weight shares of auxiliary materials, wherein the modified fiber is used for substituting for the common waste newspaper, and therefore, the grinding working procedure of newspaper can be saved. Lots of energy sources are saved, and cost is lowered; meanwhile, the same performance can be achieved.
Description
Technical field
The present invention relates to a kind of mineral wool sound absorption board and preparation method thereof.
Background technology
Mineral wool sound absorption board is a kind of house decorative material that widely uses, its light weight, sound-absorbing, fire prevention, heat insulation and environmental protection.The main component of this class sheet material is granulated wool, starch, attapulgite clay, disregard message paper and auxiliary material.Wherein, the use of disregard message paper is one of key of this mineral wool sound absorption board production technology, increases the intensity and the distortion of minimizing under wet environment of mineral wool board with utilization short fiber wherein.
Though the disregard message paper that uses in making mineral wool sound absorption board only accounts for 1～5wt% of total material, not very high, but because the requirement of process equipment, used disregard message paper must be very clean, so can only use without stock's newspaper of selling, rather than the old newspaper that reclaims arbitrarily, cost is increased; Before using disregard message paper, need in mill, it to be milled to the fine fibre shape, could add slurrying use in the mixing machinery together with other raw material, so will consume a large amount of electric energy and manpower and materials; Depositing also of disregard message paper need take big quantity space, and get damp summer easily; In addition, because disregard message paper belongs to organic matter, can influence the fireproof performance of mineral wool board when being used for mineral wool board.
Summary of the invention
The objective of the invention is to overcome mineral wool sound absorption board that prior art produces and make the cost of production defective of increase that increases, consume energy, thereby provide a kind of low production cost, few mineral wool sound absorption board consumes energy because of containing disregard message paper.
Another object of the present invention is to provide the production technology of described mineral wool sound absorption board.
The objective of the invention is to realize by the following technical solutions:
The invention provides a kind of mineral wool sound absorption board, its composition comprises:
Granulated wool 75～85 weight portions
Starch 1～7 weight portion
Attapulgite clay 6～12 weight portions
Modified fibre 1～5 weight portion
Auxiliary material 1～5 weight portion.
The rich magnesium silicate clay ore deposit modification of serving as reasons of described modified fibre obtains, and its each component and content are:
SiO
2 1.5-10wt％；
MgO 59-70wt％；
Al
2O
3 0.1-0.8wt％；
Fe
2O
3 0.2-1.6wt％；
FeO 1-8wt％；
CaO 0.01～0.6wt％；
H
2CO
3+H
2O 12-22wt％
The present invention also provides a kind of preparation technology of above-mentioned mineral wool sound absorption board, comprises the steps:
1) each component of raw material is pressed granulated wool 75～85 weight portions, starch 1～7 weight portion, attapulgite clay 6～12 weight portions, modified fibre 1～5 weight portion, auxiliary material 1～5 weight portion weighing;
2) attapulgite clay is carried out defibrination;
3) the alleged raw material of step 1) is placed on mixed pulp in the mixing machinery;
4) adopt conventional wet method, dry method or semidry process making sheet;
5) at the made plate of step 4) behind moulding and drying technology, carry out conventional following process and surfacing again and obtain finished product.
Wherein, the rich magnesium silicate clay ore deposit modification of serving as reasons of the modified fibre of described step 1) obtains.
The invention has the advantages that: the present invention uses a kind of modified fibre to replace disregard message paper, can be directly used in the system oar and need not to mill in advance, so can save operation, reduces cost, and reduces energy consumption; In addition, this modified fibre is an inorganic mineral, thereby can improve the fireproof performance of sheet material.
The specific embodiment
Embodiment 1
Each component of raw material is pressed granulated wool 85 weight portions, starch 4 weight portions, attapulgite clay 6 weight portions, modified fibre (SiO
21.5wt%; MgO 70wt%; Al
2O
30.1wt%; Fe
2O
31.1wt%; FeO 5.29wt%; CaO 0.01wt%; H
2CO
3+ H
2O 22wt%) the auxiliary material 1 weight portion weighing that 4 weight portions, and aluminum sulfate, polyacrylamide and emulsified wax are formed;
Attapulgite clay is carried out defibrination; Generally under the certain condition of pulper revolution and the mill number of teeth, the control time, make final viscosity greater than 1500 pascal seconds (PaS), down with;
With above-mentioned raw materials mixture mixed pulp in mixing machinery, after being about to all raw materials and auxiliary material and all dropping into material-compound tank,, form homogeneous, stable slip system through the abundant stirring of certain hour, can finish; Adopt dry method making sheet; After the molding substrate drying, carry out conventional following process and surfacing, make mineral wool sound absorption board 1.
The manufacturing process of corresponding prior art is as described below:
Each component of raw material is pressed granulated wool 85 weight portions, starch 4 weight portions, attapulgite clay 6 weight portions, disregard message paper 4 weight portions, reached the auxiliary material 1 weight portion weighing that aluminum sulfate, polyacrylamide and emulsified wax are formed; Disregard message paper is milled into fibrous, and attapulgite clay is carried out defibrination; With above-mentioned raw materials mixture mixed pulp in mixing machinery; Adopt dry method making sheet; After the molding substrate drying, carry out conventional following process and surfacing, make mineral wool sound absorption board P1.
Embodiment 2
Each component of raw material is pressed granulated wool 75 weight portions, starch 7 weight portions, attapulgite clay 8 weight portions, modified fibre (SiO
210wt%; MgO 70wt%; Al
2O
30.8wt%; Fe
2O
31.6wt%; FeO 1wt%; CaO 0.6wt%; H
2CO
3+ H
2O 16wt%) 5 weight portions, and the auxiliary material 5 weight portion weighings of emulsified wax, aluminum sulfate and polyvinyl alcohol composition;
Attapulgite clay is carried out defibrination;
With above-mentioned raw materials mixture mixed pulp in mixing machinery; Adopt semidry method making sheet; After the molding substrate drying, carry out conventional following process and surfacing, make mineral wool sound absorption board 2.
The manufacturing process of corresponding prior art is as described below:
Each component of raw material is pressed granulated wool 75 weight portions, starch 7 weight portions, attapulgite clay 8 weight portions, disregard message paper 5 weight portions, reached the auxiliary material 5 weight portion weighings that emulsified wax, aluminum sulfate and polyvinyl alcohol are formed; Disregard message paper is milled into fibrous, and attapulgite clay is carried out defibrination; With above-mentioned raw materials mixture mixed pulp in mixing machinery; Adopt semidry method making sheet; After the molding substrate drying, carry out conventional following process and surfacing, make mineral wool sound absorption board P2.
Embodiment 3
Each component of raw material is pressed granulated wool 83 weight portions, starch 1 weight portion, attapulgite clay 12 weight portions, modified fibre (SiO
210wt%; MgO 59wt%; Al
2O
30.2wt%; Fe
2O
30.2wt%; FeO 8wt%; CaO 0.6wt%; H
2CO
3+ H
2O 22wt%) 1 weight portion, and the auxiliary material 3 weight portion weighings of polyacrylamide, emulsified wax and alchlor composition;
Attapulgite clay is carried out defibrination;
With above-mentioned raw materials mixture mixed pulp in mixing machinery; Adopt slurry flowing process making sheet; After the molding substrate drying, carry out conventional following process and surfacing, make mineral wool sound absorption board 3.
The manufacturing process of corresponding prior art is as described below:
Each component of raw material is pressed granulated wool 83 weight portions, starch 1 weight portion, attapulgite clay 12 weight portions, disregard message paper 1 weight portion, reached the auxiliary material 3 weight portion weighings that polyacrylamide, emulsified wax and alchlor are formed; Disregard message paper is milled into fibrous, and attapulgite clay is carried out defibrination; With above-mentioned raw materials mixture mixed pulp in mixing machinery; Adopt slurry flowing process (belonging to a kind of of wet method) making sheet; After the molding substrate drying, carry out conventional following process and surfacing, make mineral wool sound absorption board P3.
As from the foregoing, adopt modified fibre of the present invention to replace disregard message paper after, can save disregard message paper is milled into fibrous operation, save a large amount of energy and manpower and materials.Simultaneously, other step still can adopt existing conventional technology, adopts very convenient.
The modified fibre of above-mentioned three embodiment is to be obtained by rich magnesium silicate clay ore deposit modification, and its each component and content obtain by detection.The present invention also can with in magnesium silicate clay ore deposit replace rich magnesium silicate clay ore deposit.
The radioassay result that mineral wool sound absorption board 1,2,3 carries out is shown in national building materials industry radioactivity and hazardous substances supervision and inspection center the detected value of its internal radiation index is 0.1; The detected value of external exposure index is 0.1, and does not contain asbestos.It meets the category-A finishing material requirement of GB6566-2001 " the radioactive material nucleic is limited the quantity of " standard code.
Table 1 is according to industry standard " mineral wool decoration acoustic absorption " JC670-1997 bending failure load and the hygroscopic deformation that the mineral wool board (15mm) of above-mentioned three embodiment (1,2,3) and comparative example (P1, P2, P3) carries out to be detected the test data that obtains.
| Mineral wool sound absorption board | Bending failure load (N) | Hygroscopic deformation (mm) | ||||
| Vertical | Horizontal | Before the distortion | After the distortion | Deflection | The average deformation amount | |
| P1 | 310 | 198 | 24 | 25.4 | 1.4 | 1.3 |
| P2 | 308 | 200 | 24 | 25.1 | 1.1 | |
| P3 | 312 | 196 | 24.2 | 25.5 | 1.3 | |
| 1 | 250 | 230 | 25.0 | 26.8 | 1.8 | 1.5 |
| 2 | 252 | 228 | 24.2 | 26.0 | 1.8 | |
| 3 | 248 | 232 | 24.5 | 25.5 | 1.0 | |
As seen from the above table, behind the employing modified fibre, the intensity detection data of the mineral wool board of producing belong to same level for the intensity detection data with the mineral wool board that adopts the production of disregard message paper.The average level of the hygroscopic deformation of the 15mm mineral wool board behind the employing modified fibre is 1.5mm, and the average level of the hygroscopic deformation of the 15mm mineral wool board of employing disregard message paper production is 1.3mm, and both also belong to same level.Therefore, after the employing modified fibre was replaced disregard message paper, the intensity of mineral wool board and hygroscopic deformation index all kept peer-level.
Claims (4)
1, a kind of mineral wool sound absorption board, its composition comprises:
Granulated wool 75～85 weight portions
Starch 1～7 weight portion
Attapulgite clay 6～12 weight portions
Rich magnesium silicate clay ore deposit modified fibre 1～5 weight portion
Auxiliary material 1～5 weight portion.
2, mineral wool sound absorption board as claimed in claim 1 is characterized in that the component and the content of described rich magnesium silicate clay ore deposit modified fibre further is:
SiO
2 1.5-10wt％；
MgO 59-70wt％；
Al
2O
3 0.1-0.8wt％；
Fe
2O
3 0.2-1.6wt％；
FeO 1-8wt％；
CaO 0.01～0.6wt％；
H
2CO
3+H
2O 12-22wt％。
3, a kind of preparation technology of mineral wool sound absorption board as claimed in claim 1 comprises the steps:
(a) each component of raw material is pressed granulated wool 75～85 weight portions, starch 1～7 weight portion, attapulgite clay 6～12 weight portions, rich magnesium silicate clay ore deposit modified fibre 1～5 weight portion, auxiliary material 1～5 weight portion weighing;
(b) attapulgite clay is carried out defibrination;
(c) the alleged raw material of step (a) is placed on mixed pulp in the mixing machinery;
(d) adopt conventional wet method, dry method or semidry process making sheet;
(e) at the made plate of step (d) behind moulding and drying technology, carry out conventional following process and surfacing again and obtain finished product.
4, the preparation technology of mineral wool sound absorption board as claimed in claim 3 is characterized in that the component and the content of the rich magnesium silicate clay ore deposit modified fibre in the described step (a) further is:
SiO
2 1.5-10wt％；
MgO 59-70wt％；
Al
2O
3 0.1-0.8wt％；
Fe
2O
3 0.2-1.6wt％；
FeO 1-8wt％；
CaO 0.01～0.6wt％；
H
2CO
3+H
2O 12-22wt％。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153762 CN1273695C (en) | 2003-08-20 | 2003-08-20 | Mineral wool sound-absorbing board and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153762 CN1273695C (en) | 2003-08-20 | 2003-08-20 | Mineral wool sound-absorbing board and preparing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1584237A CN1584237A (en) | 2005-02-23 |
| CN1273695C true CN1273695C (en) | 2006-09-06 |
Family
ID=34597852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03153762 Expired - Lifetime CN1273695C (en) | 2003-08-20 | 2003-08-20 | Mineral wool sound-absorbing board and preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1273695C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497214B (en) * | 2008-02-01 | 2011-06-22 | 北新集团建材股份有限公司 | System for producing light mineral wool stave |
| CN102400498B (en) * | 2010-09-15 | 2014-04-09 | 北新集团建材股份有限公司 | Enhanced mineral cotton acoustic board and preparation method thereof |
| CN102400527B (en) * | 2010-09-15 | 2014-04-09 | 北新集团建材股份有限公司 | Environment-friendly mineral wool board with functions of humidity adjustment and air purification and production method thereof |
| CN103321312A (en) * | 2012-10-23 | 2013-09-25 | 北新集团建材股份有限公司 | Production method of mineral wool boards |
| CN106904880A (en) * | 2015-12-23 | 2017-06-30 | 北新集团建材股份有限公司 | A kind of mineral wool board with antibacterial functions and preparation method thereof |
| CN110552471A (en) * | 2018-05-31 | 2019-12-10 | 北新集团建材股份有限公司 | Mineral wool sound absorption board and preparation method thereof |
-
2003
- 2003-08-20 CN CN 03153762 patent/CN1273695C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1584237A (en) | 2005-02-23 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20060906 |