CN102506269A - Preparation technology for solar energy-saving PVC (Polyvinyl Chloride) foamed pipe - Google Patents
Preparation technology for solar energy-saving PVC (Polyvinyl Chloride) foamed pipe Download PDFInfo
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- CN102506269A CN102506269A CN2011103475348A CN201110347534A CN102506269A CN 102506269 A CN102506269 A CN 102506269A CN 2011103475348 A CN2011103475348 A CN 2011103475348A CN 201110347534 A CN201110347534 A CN 201110347534A CN 102506269 A CN102506269 A CN 102506269A
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- pvc foam
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Abstract
The invention provides a preparation technology for a solar energy-saving PVC foamed pipe. An extruded PE-X (Cross Linked polyethylene) pipe is used as an inner core, PVC foamed pipe is coated outside as the thermal-insulation energy-saving material to extrude out the outer-coating cold-resistant anti-aging PVC pipe, wherein the production technology comprises such following processes as: coating PVC foamed pipe outside as the thermal-insulation energy-saving material after the inner core PE-X pipe is extruded out and cooled from an extruder die head; and then coating the cold-resistant anti-aging PVC pipe outside, and the like. The solar energy-saving PVC foamed pipe acquired from the preparation technology has the characteristics of excellent thermal-insulation energy-saving performances, a long service life, a low price and the like. The prepared pipe is unbroken even the liquid-resistant pressure reaches 6.0 MPa, and the PVC foamed pipe has a density reaching 0.7g/m3, and the 0-level flame retardation.
Description
Technical field
A kind of solar energy involved in the present invention is with energy-saving PVC foam pipe preparation process, and this process engineering can be applied to the production process of solar energy with energy-saving PVC foam pipe.
Technical background
Solar energy is mainly the PEX cross-linking tube with tubing at present, but most of tubing does not have stronger antifreeze, high temperature resistant, anti-ultraviolet function.Working life is shorter, and thermal insulation property, oxygen resistance are poor.
Summary of the invention
The object of the present invention is to provide a kind of solar energy with energy-saving PVC foam pipe preparation process; Its production process is that the crosslinked tubing of inner core PE-X is after the extruder die head is extruded cooling; Outside coating PVC foam pipe is a heat insulating energy saving material, and operations such as the cold-resistant anti-aging PVC tubing of external application then form.The inner core of this tubing is the crosslinked tubing of PE-X, adopts expressing technique, and the crosslinking agent that wherein adds can be di-tert-butyl peroxide, hydroxy-ethyl acrylate, hydroxypropyl acrylate, methacrylic acid, benzene sulfonic acid class two or more material wherein.Outside tubing, covering the PVC foam pipe is heat insulating energy saving material; Adopt blend-expressing technique, stabilizer that wherein adds and foamed promoter can be Celogen Az, modification p-toluene sulfonylsemicarbazide, sodium hydrogen carbonate, MBS, lemon acids two or more material wherein.At last at the cold-resistant anti-aging PVC tubing of external application; Adopt expressing technique, the age resister that wherein adds can be phosphorous acid esters, nickel dibutyl dithiocarbamate, nitrosodiphenylamine, heterocyclic, aldehyde amines, polyatomic phenol two or more material wherein.A kind of solar energy that application the present invention prepares is with energy-saving PVC foam pipe, and this tubing has heat preservation energy-saving function admirable, long service life and lower-price characteristic.The anti-fluid pressure of the tubing that the present invention makes reaches 6.0MPa not to be destroyed, and PVC foam pipe density reaches 0.7g/m
3, flame retardant property is 0 grade.
The present invention has obtained successful Application at present in the national plastic cement factory in Nanjing (group) produces.
Description of drawings
Figure solar energy is with energy-saving PVC foam pipe generalized section
Concrete invention instance:
The solar energy that the national plastic cement factory in Nanjing (group) is produced is seen accompanying drawing with energy-saving PVC foam pipe schematic representation.Adopt the PVC foam pipe of the present invention's preparation to have heat preservation energy-saving function admirable, long service life and lower-price characteristic.The anti-fluid pressure of the tubing that the present invention makes reaches 6.0MPa not to be destroyed, and PVC foam pipe density reaches 0.7g/m
3, flame retardant property is 0 grade.
In order to understand the present invention better, specify technological scheme of the present invention through concrete embodiment below.
Embodiment 1
The crosslinked tubing of inner core PEX drops into material by the prescription metering is disposable to extruder, and control is extruded processing temperature at 190 ℃～220 ℃, and extruding rotating speed is 45r/min; Flexible pipe after extruding covers the PVC foam pipe outward through cooling, and this tubing is by materials such as the disposable input PVC of prescription metering, calcium powder, sodium hydrogen carbonate, citric acid, paraffin oil, zine oxide, Celogen Az, modification p-toluene sulfonylsemicarbazides; Mix earlier through high-speed mixer heat, 95 ℃～105 ℃ of control processing temperatures, process time 10～15min; Mix through high-speed mixer is cold, the control processing temperature is at 30 ℃～40 ℃ again, process time 10～15min; And after extruding pelletization is controlled 95 ℃～120 ℃ of processing temperatures, extruding rotating speed is 40r/min; After expressing technique is overlying on outward on the core pipe, 150 ℃～170 ℃ of processing temperatures are extruded in control; Extruding rotating speed is 45r/min, at the cold-resistant anti-aging PVC tubing of external application external application then, adopts expressing technique; Make composite pipe through cooling, the anti-fluid pressure of this tubing reaches 6.0MPa not to be destroyed, and PVC foam pipe density reaches 0.7g/m
3, flame retardant property is 0 grade.
Embodiment 2
The crosslinked tubing of inner core PEX drops into material by the prescription metering is disposable to extruder, and control is extruded processing temperature at 190 ℃～220 ℃, and extruding rotating speed is 45r/min; Flexible pipe after extruding covers the PVC foam pipe outward through cooling, and this tubing is by materials such as the disposable input PVC of prescription metering, calcium powder, sodium hydrogen carbonate, citric acid, paraffin oil, zine oxide, modification p-toluene sulfonylsemicarbazides; Mix earlier through high-speed mixer heat, 95 ℃～105 ℃ of control processing temperatures, process time 10～15min; Mix through high-speed mixer is cold, the control processing temperature is at 30 ℃～40 ℃ again, process time 10～15min; And after extruding pelletization is controlled 95 ℃～120 ℃ of processing temperatures, extruding rotating speed is 40r/min; After expressing technique is overlying on outward on the core pipe, 150 ℃～170 ℃ of processing temperatures are extruded in control; Extruding rotating speed is 45r/min, at the cold-resistant anti-aging PVC tubing of external application external application then, adopts expressing technique; Make composite pipe through cooling, the anti-fluid pressure of this tubing reaches 6.0MPa not to be destroyed, and PVC foam pipe density reaches 0.73g/m
3, flame retardant property is 0 grade.
Embodiment 3
The crosslinked tubing of inner core PEX drops into material by the prescription metering is disposable to extruder, and control is extruded processing temperature at 190 ℃～220 ℃, and extruding rotating speed is 45r/min; Flexible pipe after extruding covers the PVC foam pipe outward through cooling, and this tubing is by materials such as the disposable input PVC of prescription metering, calcium powder, sodium hydrogen carbonate, citric acid, paraffin oil, zine oxide, Celogen Azs; Mix earlier through high-speed mixer heat, 95 ℃～105 ℃ of control processing temperatures, process time 10～15min; Mix through high-speed mixer is cold, the control processing temperature is at 30 ℃～40 ℃ again, process time 10～15min; And after extruding pelletization is controlled 95 ℃～120 ℃ of processing temperatures, extruding rotating speed is 40r/min; After expressing technique is overlying on outward on the core pipe, 150 ℃～170 ℃ of processing temperatures are extruded in control; Extruding rotating speed is 45r/min, at the cold-resistant anti-aging PVC tubing of external application external application then, adopts expressing technique; Make composite pipe through cooling, the anti-fluid pressure of this tubing reaches 6.0MPa not to be destroyed, and PVC foam pipe density reaches 0.75g/m
3, flame retardant property is 0 grade.
Though the present invention has been detailed, yet it is not to be used to limit the present invention with preferred embodiment.Any those skilled in the art under the situation that does not break away from the spirit and scope of the present invention, should make various modifications and change.Therefore protection scope of the present invention should be regarded as appended claims institute restricted portion.
Claims (4)
1. a solar energy is characterized in that with energy-saving PVC foam pipe preparation process with the crosslinked tubing of PE-X be inner core, and covering the PVC foam pipe outward is heat insulating energy saving material, the external application anti-aging PVC tubing that resists cold.
2. a kind of solar energy as claimed in claim 1 is with energy-saving PVC foam pipe preparation process; It is characterized in that the outer PVC foam pipe that covers; Adopt blend-expressing technique, stabilizer that wherein adds and foamed promoter can be Celogen Az, modification p-toluene sulfonylsemicarbazide, sodium hydrogen carbonate, MBS, lemon acids two or more material wherein.
3. a kind of solar energy as claimed in claim 1 is characterized in that the outer PVC foam pipe that covers with energy-saving PVC foam pipe preparation process, adopts blend-expressing technique; Wherein blending technology is to mix through high-speed mixer heat earlier, 95 ℃～105 ℃ of control processing temperatures, process time 10～15min; Mix through high-speed mixer is cold, the control processing temperature is at 30 ℃～40 ℃ again, process time 10～15min; Expressing technique is first through extruding pelletization, 95 ℃～120 ℃ of control processing temperatures, and extruding rotating speed is 35～45r/min; And after extrude outer being overlying on the core pipe, 150 ℃～170 ℃ of processing temperatures are extruded in control, and extruding rotating speed is 40～50r/min.
4. like the application of a kind of solar energy of claim 1-3, can be applied to the production process of solar energy with energy-saving PVC foam pipe with energy-saving PVC foam pipe preparation process.This tubing sandwich layer is the PE-X cross-linking tube, adopts expressing technique, and the crosslinking agent that wherein adds can be di-tert-butyl peroxide, hydroxy-ethyl acrylate, hydroxypropyl acrylate, methacrylic acid, benzene sulfonic acid class two or more material wherein.This composite pipe outermost surface is cold-resistant anti-aging PVC tubing; Adopt expressing technique, the age resister that wherein adds can be phosphorous acid esters, nickel dibutyl dithiocarbamate, nitrosodiphenylamine, heterocyclic, aldehyde amines, polyatomic phenol two or more material wherein.This composite pipe has heat preservation energy-saving function admirable, long service life and lower-price characteristic.The anti-fluid pressure of the tubing that the present invention makes reaches 6.0MPa not to be destroyed, and PVC foam pipe density reaches 0.7g/m
3, flame retardant property is 0 grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103475348A CN102506269A (en) | 2011-11-07 | 2011-11-07 | Preparation technology for solar energy-saving PVC (Polyvinyl Chloride) foamed pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103475348A CN102506269A (en) | 2011-11-07 | 2011-11-07 | Preparation technology for solar energy-saving PVC (Polyvinyl Chloride) foamed pipe |
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| CN102506269A true CN102506269A (en) | 2012-06-20 |
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| CN2011103475348A Pending CN102506269A (en) | 2011-11-07 | 2011-11-07 | Preparation technology for solar energy-saving PVC (Polyvinyl Chloride) foamed pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608356A (en) * | 2014-12-22 | 2015-05-13 | 天津市津南区伟超橡塑制品厂 | A synchronous type rubber tube extruder |
Citations (6)
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|---|---|---|---|---|
| CN2413898Y (en) * | 2000-03-30 | 2001-01-10 | 东莞三美空调配件有限公司 | Thermal-insulating sleeve |
| US6730254B1 (en) * | 1999-12-03 | 2004-05-04 | Sumitomo Electric Interconnect Products, Inc. | Thermal insulation system for protecting fluid lines and method for making same |
| CN101104719A (en) * | 2007-06-29 | 2008-01-16 | 广东联塑科技实业有限公司 | High damping polyvinyl chloride material and method for preparing pipe |
| CN201836601U (en) * | 2010-11-03 | 2011-05-18 | 吴伟良 | Novel thermal insulation pipe |
| CN102070837A (en) * | 2010-12-31 | 2011-05-25 | 金发科技股份有限公司 | Cross-linked polypropylene composite material and preparation method thereof |
| CN201925621U (en) * | 2010-05-17 | 2011-08-10 | 周良文 | Composite heat-insulating hose |
-
2011
- 2011-11-07 CN CN2011103475348A patent/CN102506269A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6730254B1 (en) * | 1999-12-03 | 2004-05-04 | Sumitomo Electric Interconnect Products, Inc. | Thermal insulation system for protecting fluid lines and method for making same |
| CN2413898Y (en) * | 2000-03-30 | 2001-01-10 | 东莞三美空调配件有限公司 | Thermal-insulating sleeve |
| CN101104719A (en) * | 2007-06-29 | 2008-01-16 | 广东联塑科技实业有限公司 | High damping polyvinyl chloride material and method for preparing pipe |
| CN201925621U (en) * | 2010-05-17 | 2011-08-10 | 周良文 | Composite heat-insulating hose |
| CN201836601U (en) * | 2010-11-03 | 2011-05-18 | 吴伟良 | Novel thermal insulation pipe |
| CN102070837A (en) * | 2010-12-31 | 2011-05-25 | 金发科技股份有限公司 | Cross-linked polypropylene composite material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608356A (en) * | 2014-12-22 | 2015-05-13 | 天津市津南区伟超橡塑制品厂 | A synchronous type rubber tube extruder |
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Application publication date: 20120620 |