CN1221373C - Silent polyvinyl chloride drain pipe - Google Patents
Silent polyvinyl chloride drain pipe Download PDFInfo
- Publication number
- CN1221373C CN1221373C CN 03135574 CN03135574A CN1221373C CN 1221373 C CN1221373 C CN 1221373C CN 03135574 CN03135574 CN 03135574 CN 03135574 A CN03135574 A CN 03135574A CN 1221373 C CN1221373 C CN 1221373C
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- CN
- China
- Prior art keywords
- polyvinyl chloride
- parts
- sound
- barium sulfate
- discharge pipe
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Abstract
The present invention discloses a polyvinyl chloride silencing water discharge pipe and a preparation method thereof. The polyvinyl chloride silencing water discharge pipe is characterized in that a sound absorption core layer (3) is compounded and extruded between an outer layer (2) and an inner layer (1). A raw material of the sound absorption core layer (3) contains 100 shares of polyvinyl chloride resin, 15 to 150 shares of chlorinated polyethylene and 50 to 500 shares of barium sulfate. The present invention has the advantages that compared with the common polyvinyl chloride water discharge pipe, the noise of the polyvinyl chloride silencing water discharge pipe is lowered 2.7 to 12.9dB, and the polyvinyl chloride silencing water discharge pipe still has favorable impact strength and tensile strength; meanwhile, the polyvinyl chloride silencing water discharge pipe has simple making process steps and convenient use and installation.
Description
Technical field
The present invention relates to a kind of drainpipe, especially a kind of polychloroethylene mute drainpipe that can significantly reduce draining noise.
Background technology
Polyvinyl chloride (UPVC) drainpipe is with its cheapness, attractive in appearance, installation and maintenance convenience, and grow and extensively adopt in the whole world service life.But noise was very big when it had a fatal weakness to be draining, influenced the room peace and quiet, sometimes people was waken up with a start from the dreamland of sweetness.It is the strong sound-absorbing material that does not have barium sulfate and so in the drainpipe component that there is the reason of big noise in the tradition drainpipe.Face of noise, people have done many effort, various noise reduction drainpipes have been developed in succession, as: Japanese publication, Te Kaiping 5-271429, denomination of invention is for disclosing a kind of technology that can make common supplying drainage reduce noise in " sound insulation tubing ", this sound insulation tubing is mainly by vinyl chloride resin, plasticizer, barium sulfate (BaSO
4) wait composition, though it also contains barium sulfate (BaSO
4), but it is to extrude earlier to be processed into barium sulfate-containing (BaSO
4) medium-soft tubing, in the time of installation this medium-soft tubing is broken the outside that is wrapped in the normal discharge pipe, so poor practicability, profile are not attractive in appearance, install also inconveniently, be difficult to realize industrialization.
Summary of the invention
The purpose of this invention is to provide a kind of can significantly reduce draining noise the polychloroethylene mute drainpipe.
Technical scheme of the present invention is: a kind of polychloroethylene mute drainpipe is characterized in that: Compound Extrusion has the sound-absorbing sandwich layer between exodermis and endodermis; Contain 100 parts of Corvics in the raw material of sound-absorbing sandwich layer, 20～150 parts of haloflexes, 50～500 parts in barium sulfate.
Exodermis and endodermis raw material are ordinary rigid polyvinyl-chloride drainage pipe material among the present invention, the sound-absorbing sandwich layer can be formulated by following raw material: 100 parts of Corvics, 20～150 parts of haloflexes, 4.2 parts of lead stabilizers, 0.3 part of calcium stearate, 0.3 part of stearic acid, 0.1 part in paraffin, 1.5 parts of phthalic acids two (2-Octyl Nitrite), 30～60 parts of calcium carbonate activateds, 50～500 parts in barium sulfate, wherein
Polyvinyl chloride (PVC) resin: the primary raw material of sound-absorbing sandwich layer, main body constitutes, and plays adhesive effect.
Barium sulfate (BaSO
4): technical grade grinds powder, the rigidity sound-absorbing material, its effect is to absorb acoustic energy, thereby makes polyvinyl-chloride drainage pipe reach the purpose of noise reduction.
Stearic acid (HST): in-lubricant.
Paraffin (WAX): external lubricant
Lead stabilizer: play heat stabilization.
Haloflex (CPE): anti-impact modifier also is the elastomer sound-absorbing material.
Phthalic acid two (2-Octyl Nitrite) is (DOP): plasticizer, also play processing modified effect.
Calcium carbonate activated (CaCO
3): filler, but it also has certain sound absorbing power.
The most significant advantage of the present invention is: with respect to common polyvinyl-chloride drainage pipe noise reduction 2.7～12.3dB, and still have impact strength and hot strength preferably, manufacturing technology steps is simple, easy to install.
Description of drawings
Fig. 1 is the cross section structural representation of product of the present invention;
Fig. 2 is a composite co-extruding die head schematic diagram used in the embodiment of the invention;
Fig. 3 is preparation technology's flow chart of the present invention.
The specific embodiment
Embodiment 1: referring to Fig. 1, Fig. 2 and Fig. 3, architectural feature of the present invention is that Compound Extrusion has sound-absorbing sandwich layer 3 between exodermis 2 and endodermis 1; Used extrusion die is two-shipper co-extrusion die head (the hard Machines Plant in Willie, Shuande, Guangdong), and the two-shipper co-extrusion die head is made up of coextruding die 7 and compound die 8.
Its step of preparation process is:
Step 1, the raw material preparation:
Prepare inside and outside cortex material by following consumption:
Polyvinylchloride (SG5) resin 100Kg, haloflex (CPE) 8Kg, compound lead stabilizer 4.2Kg, calcium stearate (Cast) 0.3Kg, stearic acid (HST) 0.3Kg, paraffin (WAX) 0.1Kg, phthalic acid two (2-Octyl Nitrite) is 2.5Kg (DOP), calcium carbonate activated (CaCO
3) 30Kg, titanium dioxide (TiO
2) 1.2Kg;
Prepare the sound-absorbing core layer material by following consumption:
Polyvinyl chloride (PVC) resin 100Kg, haloflex (CPE) 15Kg, lead stabilizer 4.2Kg, calcium stearate (Cast) 0.3Kg, stearic acid (HST) 0.3Kg, paraffin (WAX) 0.1Kg, phthalic acid two (2-Octyl Nitrite) is 1.5Kg (DOP), calcium carbonate activated (CaCO
3) 30Kg, barium sulfate (BaSO
4) 50Kg;
Step 2, it is that the heated at high speed mixer GRH-3000 (Hongqi Plastic Machinery Factory, Fuxin City) of 300L carries out high speed and mediates that the above-mentioned cortex raw material for preparing and sound-absorbing sandwich layer raw material are put into volume respectively, makes material temperature rise to 120 ℃;
Step 3 is put into cooling mixing machine LH-500B (Hongqi Plastic Machinery Factory, Fuxin City) cooling that volume is 300L respectively with above-mentioned cortex raw material and sound-absorbing sandwich layer raw material through overheated mixed kneading, and material temperature is dropped to below 40 ℃, and discharging is stand-by;
Step 4, extrude:
Extruding of inside and outside cortex:
To extrude in the top cortex raw material input isometrical double screw extruder of DAT-85 (Korea S DAE-A MACHINERYCO.LTD) that has cooled off, melt enters Ф 110 * 3.2mm compound die capitiform by cortex charging aperture 9 and becomes inside and outside cortex, and its process conditions are:
Barrel temperature: 178 ± 3 ℃ in 1 district
172 ± 3 ℃ in 2 districts
160 ± 3 ℃ in 3 districts
160 ± 3 ℃ in 4 districts
154 ± 3 ℃ in 5 districts
Engine speed: 29rpm subsidiary engine rotating speed: 34rpm main frame torque: 58-62A
Extruding of sound-absorbing sandwich layer:
The top sandwich layer raw material that has cooled off is dropped into the isometrical double screw extruder of DAT-90 (Korea S DAE-A MACHINERYCO.LTD) extrude, melt enters Ф 110 * 3.2mm compound die capitiform by sandwich layer charging aperture 10 and becomes sandwich layer, and its process conditions are:
Barrel temperature: 170 ± 3 ℃ in 1 district
165 ± 3 ℃ in 2 districts
155 ± 3 ℃ in 3 districts
153 ± 3 ℃ in 4 districts
148 ± 3 ℃ in 5 districts
162 ± 3 ℃ in 6 districts
Engine speed: 10rpm subsidiary engine rotating speed: 200rpm main frame torque: 50A
The composite co-extruding of inside and outside cortex and sound-absorbing sandwich layer:
Inside and outside cortex and the sandwich layer extruded enter the composite co-extruding die head together, form three layers of composite, water-drain tubular construction of the present invention at this, and its process conditions are:
Compound die head temperature: 154 ± 2 ℃ in 1 district
168 ± 2 ℃ in 2 districts
170 ± 2 ℃ in 3 districts
175 ± 2 ℃ in 4 districts
Step 5 is carried out the cooling vacuum typing with the above-mentioned medium-soft pipe that obtains;
Step 6, the coding printing;
Step 7, traction;
Step 8, cutting;
Step 9 gets product after the check.
Embodiment 2: its structure, the preparation mould identical with preparation technology with embodiment 1, its difference is that haloflex in the sound-absorbing sandwich layer 3 (CPE) consumption is 20Kg, calcium carbonate activated (CaCO
3) consumption is 60Kg, barium sulfate (BaSO
4) consumption be 100Kg.
Embodiment 3: its structure, the preparation mould identical with preparation technology with embodiment 1, its difference is haloflex in the sound-absorbing sandwich layer 3 (CPE) 50Kg, barium sulfate (BaSO
4) consumption is 300Kg.
Embodiment 4: its structure, the preparation mould identical with preparation technology with embodiment 1, its difference is haloflex in the sound-absorbing sandwich layer 3 (CPE) 100Kg, barium sulfate (BaSO
4) consumption is 400Kg.
Embodiment 5: its structure, the preparation mould identical with preparation technology with embodiment 1, its difference is haloflex in the sound-absorbing sandwich layer 3 (CPE) 150Kg, barium sulfate (BaSO
4) consumption is 500Kg.
In order further to verify barium sulfate (BaSO in the sound-absorbing sandwich layer 3
4), calcium carbonate activated (CaCO
3) and haloflex (CPE) effect and their proportioning in the present invention change influence to other mechanical performance of polychloroethylene mute drainpipe among the present invention, it is special that to make 3 Comparative Examples as follows:
Comparative Examples 1: common individual layer UPVC drainpipe, calcium carbonate activated (CaCO in its raw material
3) consumption is 50Kg, haloflex (CPE) consumption is 8Kg, not barium sulfate-containing (BaSO
4), all the other raw material compositions and consumption are identical with sound-absorbing sandwich layer 3 among the embodiment 1, without the composite co-extruding die head, and with Ф 110 * 3.2mm normal discharge pipe die head, make the common UPVC drainpipe of Ф 110 * 3.2mm in the expressing technique step.
Comparative Examples 2: its structure, the preparation mould identical with preparation technology with embodiment 1, its difference is barium sulfate (BaSO in the sound-absorbing sandwich layer 3
4) consumption is 25Kg, haloflex (CPE) consumption is 10Kg.
Comparative Examples 3: its structure, the preparation mould identical with preparation technology with embodiment 1, its difference is barium sulfate (BaSO in the sound-absorbing sandwich layer 3
4) consumption is 600Kg, haloflex (CPE) consumption is 20Kg.
The prescription and the respective performances of embodiment 1～embodiment 5 and Comparative Examples 1～Comparative Examples 3 see the following form:
As can be seen from the above table: in embodiment 1～embodiment 5, along with barium sulfate (BaSO
4) increase of consumption, noise reduction is become better and better, but its mechanical performance descends, if increase the content of haloflex (CPE), then noise reduction is better, and can avoid because barium sulfate (BaSO
4) increase of consumption and problem that the shock resistance that causes descends.
From Comparative Examples 1 as can be seen: common polyvinyl-chloride drainage pipe is because barium sulfate-containing (BaSO not
4), so its noise reduction is the poorest; Barium sulfate (BaSO in the Comparative Examples 2
4) consumption is 25Kg, its noise reduction is not obvious; Barium sulfate (BaSO in the Comparative Examples 3
4) consumption when being 600Kg, the physical and mechanical properties of tubing is too poor.
Can draw from above: barium sulfate (BaSO
4) best proportioning be 50～500 parts, calcium carbonate activated (CaCO
3) certain sound absorbing power is also arranged, but barium sulfate (BaSO
4) noise reduction want specific activity calcium carbonate (CaCO
3) much better than, the content that suitably increases haloflex (CPE) can be avoided because barium sulfate (BaSO
4) increase of consumption and the problem that causes shock resistance to descend.
Claims (3)
1. polychloroethylene mute drainpipe is characterized in that:
A. Compound Extrusion has sound-absorbing sandwich layer (3) between exodermis (2) and endodermis (1);
B. contain 100 parts of Corvics in the raw material of sound-absorbing sandwich layer (3), 20～150 parts of haloflexes, 50～500 parts in barium sulfate.
2. polychloroethylene mute drainpipe according to claim 1 is characterized in that sound-absorbing sandwich layer (3) is formulated by following raw material:
100 parts of Corvics, 20～150 parts of haloflexes, 4.2 parts of lead stabilizers, 0.3 part of calcium stearate, 0.3 part of stearic acid, 0.1 part in paraffin, 1.5 parts of phthalic acids two (2-Octyl Nitrite), 30～60 parts of calcium carbonate activateds, 50～500 parts in barium sulfate.
3. polychloroethylene mute drainpipe according to claim 1 is characterized in that: exodermis (2) and endodermis (1) material are ordinary rigid polyvinyl-chloride drainage pipe material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03135574 CN1221373C (en) | 2003-08-10 | 2003-08-10 | Silent polyvinyl chloride drain pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03135574 CN1221373C (en) | 2003-08-10 | 2003-08-10 | Silent polyvinyl chloride drain pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1486834A CN1486834A (en) | 2004-04-07 |
| CN1221373C true CN1221373C (en) | 2005-10-05 |
Family
ID=34154705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03135574 Expired - Lifetime CN1221373C (en) | 2003-08-10 | 2003-08-10 | Silent polyvinyl chloride drain pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1221373C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434730B (en) * | 2011-09-02 | 2013-11-06 | 王井洋 | Manufacturing method of noise-reducing drainage pipe fitting with spiral fins on inner wall |
| CN111793298A (en) * | 2020-06-10 | 2020-10-20 | 安徽博泰塑业科技有限公司 | Silencing inclined tee pipe and preparation method thereof |
-
2003
- 2003-08-10 CN CN 03135574 patent/CN1221373C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1486834A (en) | 2004-04-07 |
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