CN1227644C - Sound insulation plate - Google Patents
Sound insulation plate Download PDFInfo
- Publication number
- CN1227644C CN1227644C CN02119704.0A CN02119704A CN1227644C CN 1227644 C CN1227644 C CN 1227644C CN 02119704 A CN02119704 A CN 02119704A CN 1227644 C CN1227644 C CN 1227644C
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- CN
- China
- Prior art keywords
- vinyl acetate
- ethylene vinyl
- sound insulating
- parts
- acetate resin
- 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.)
- Expired - Fee Related
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- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention relates to a sound insulating plate. Raw materials in the predetermined proportion are mixed, stirred and heated; the raw materials are unloaded and cooled to form a plate blank. The plate blank is twice rolled, mixed and stretched into an ethylene vinyl acetate resin plate with proper dimensions and a proper shape. The raw materials in the predetermined proportion are made by uniformly mixing ethylene vinyl acetate resin, ethylene propylene rubber, linear low-density polyethylene and barium sulfate, wherein the ethylene vinyl acetate resin is not foamed. The sound insulating plate which is made of the raw materials has excellent tenacity, intensity and plasticity; the sound insulating plate can insulate noise of lower frequency. When used, the sound insulating plate is matched with a foaming plate or cotton which can insulate the noise of high frequency to achieve an excellent sound isolating effect.
Description
Technical field
The present invention is a kind of sound insulating sheet material, refers in particular to a kind ofly to have higher density, and can obtain preferable intensity and plastic sound insulating sheet material.The existing foaming of collocation plate uses, and obtains preferable soundproof effect.
Background technology
At present general traditional sound insulating sheet material is with 50% Polyvinylchloride (PVC) powder, 30% plasticizer (DOP) and 20% lime carbonate (CaCO
3) (or metal powder grain) form via following three road program manufacturings:
(1) phase one is preliminary gel program: after described raw material was mixed stirring and is heated to 170 ℃ simultaneously, blanking was cooled to the young material of sheet material;
(2) subordinate phase is a roll-in kneading program: the young material of the sheet material that will mix the phase one is mixing through the roll-in of mechanical roll-in screw rod secondary;
(3) phase III is the calendering formation program: the material material with described roll-in after mixing rolls into Polyvinylchloride (PVC) the sheet material finished product of pre-set dimension and shape.
Its major defect is:
Because the proportion of finished product reaches about 1.7 only, strengthen proportion as desire, then must improve the ratio of lime carbonate or metal powder grain, but, so not only can cause the molecule associativity of each material of Polyvinylchloride (PVC) sheet material finished product not good, material can't evenly distribute and loose, and then forms easily cracked shortcoming; And its composition can only block the upper frequency noise with traditional ethylene vinyl acetate resin (EVA) foaming plate or cotton said function, and can't block the noise of lower frequency, causes practical function not good.
Summary of the invention
The inventor, through design discussion in many ways and studies specimen test and repeatedly revises improvement at the shortcoming of traditional sound insulating sheet material, creates technical scheme of the present invention.
Fundamental purpose of the present invention provides a kind of sound insulating sheet material, forms and proportioning by changing its raw material, make proportion can reach 2-3, and the molecule associativity between each material is preferable and material is evenly distributed, and reaches all preferable purpose of toughness, intensity and plasticity of material.
Another object of the present invention provides a kind of sound insulating sheet material, has the noise that blocks lower frequency by it, and collocation can be blocked the upper frequency noise during use foaming plate or cotton reach preferable sound insulation purpose.
The object of the present invention is achieved like this: a kind of sound insulating sheet material, it is the raw material mixing agitating heating with predetermined ratio, blanking is cooled to the young material of sheet material, carry out the mixing ethylene vinyl acetate resin plate that appropriate size and shape that rolls of secondary roll-in through mechanical roll-in screw rod, it is characterized in that: the raw material of described predetermined ratio is evenly to be mixed by the ethylene vinyl acetate resin, ethylene propylene rubber, linear low density polyethylene and the barium sulphate that do not foam; The parts by weight proportioning of described material composition is: ethylene vinyl acetate resin 17-23 part, ethylene propylene rubber 2-7 part, linear low density polyethylene 2-7 part and barium sulphate 65-75 part.
The parts by weight proportioning of the described material composition of optimizing is: 20 parts of ethylene vinyl acetate resins, 5 parts of ethylene propylene rubbers, 70 parts in 5 parts of linear low density polyethylenes and barium sulphate.
Describe in detail below in conjunction with preferred embodiment.
Embodiment
Embodiment 1
Sound insulating sheet material of the present invention is that the ethylene vinyl acetate resin (EVA) that 17-23% is not foamed, the ethylene propylene rubber (POE) of 2-7%, linear low density polyethylene (LLDPE) and the 65-75% barium sulphate (BaSO4) of 2-7% form via following three road program manufacturings:
(1) phase one is preliminary gel program: described raw material is mixed stir, and after being heated to 55-65 ℃ simultaneously, blanking is cooled to the young material of sheet material;
(2) subordinate phase is a roll-in kneading program: the young material of the sheet material after will mixing the phase one, and it is mixing to carry out the secondary roll-in through mechanical roll-in screw rod;
(3) phase III is the calendering formation program: the material material with described roll-in after mixing rolls ethylene-vinyl acetate fat resin (EVA) the sheet material finished product that to preset appropriate size and shape.
Through test, the proportion of ethylene vinyl acetate resin of the present invention (EVA) sheet material finished product can reach 2-3, and the molecule bonding properties between each material is preferable, material is evenly distributed, thereby the toughness of material, intensity and plasticity etc. are all preferable than the sheet material of traditional structure.
The outstanding feature of ethylene vinyl acetate resin of the present invention (EVA) sheet material is to have the noise that blocks lower frequency.(for example as automobile-used sound insulating sheet material) can arrange in pairs or groups traditional during use foaming plate or cotton, it blocks the noise (for example noise that car engine or car body produced) of upper frequency, and then reaches preferable soundproof effect.
Embodiment 2
Sound insulating sheet material in the present embodiment 2 is to be selected from 20 parts not ethylene vinyl acetate resin (EVA), 5 parts ethylene propylene rubber (POE), 5 parts linear low density polyethylene (LLDPE) and 70 parts the barium sulphate (BaSO of foaming
4) form through the job sequence manufacturing identical with embodiment 1, it has structure and the performance identical with embodiment 1, so do not repeat.Certainly, can also select other required proportionings according to actual needs, all belong within protection scope of the present invention.
In sum, the present invention has novelty, creativeness and practicality.
Claims (2)
1, a kind of sound insulating sheet material, it is the raw material mixing agitating heating with predetermined ratio, blanking is cooled to the young material of sheet material, it is mixing to carry out the secondary roll-in through mechanical roll-in screw rod, roll the ethylene vinyl acetate resin plate that appropriate size and shape, it is characterized in that: the raw material of described predetermined ratio is evenly to be mixed by the ethylene vinyl acetate resin, ethylene propylene rubber, linear low density polyethylene and the barium sulphate that do not foam; The parts by weight proportioning of described material composition is: ethylene vinyl acetate resin 17-23 part, ethylene propylene rubber 2-7 part, linear low density polyethylene 2-7 part and barium sulphate 65-75 part.
2, sound insulating sheet material according to claim 1 is characterized in that: the parts by weight proportioning of described material composition is: 20 parts of ethylene vinyl acetate resins, 5 parts of ethylene propylene rubbers, 70 parts in 5 parts of linear low density polyethylenes and barium sulphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02119704.0A CN1227644C (en) | 2002-05-13 | 2002-05-13 | Sound insulation plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02119704.0A CN1227644C (en) | 2002-05-13 | 2002-05-13 | Sound insulation plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458644A CN1458644A (en) | 2003-11-26 |
| CN1227644C true CN1227644C (en) | 2005-11-16 |
Family
ID=29426860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02119704.0A Expired - Fee Related CN1227644C (en) | 2002-05-13 | 2002-05-13 | Sound insulation plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1227644C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2886947B1 (en) * | 2005-06-09 | 2007-10-12 | Sncf | METHOD FOR ANTI-CORROSION TREATMENT OF HOLLOW BODIES, METHOD FOR PRODUCING METAL STRUCTURE TREATED WITH THE METHOD AND METHOD FOR MAINTENANCE OF THE STRUCTURE |
| CN101319066B (en) * | 2007-06-10 | 2010-12-08 | 郭廷志 | High-floating force foam material and method of producing the same |
| CN103408830A (en) * | 2013-07-08 | 2013-11-27 | 陈志冲 | Plate with sound insulation effect |
| CN103408829A (en) * | 2013-07-08 | 2013-11-27 | 陈志冲 | Composite board used for buildings |
-
2002
- 2002-05-13 CN CN02119704.0A patent/CN1227644C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1458644A (en) | 2003-11-26 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |