CN1844227A - Polyvinyl chloride pipe for marsh gas and manufacturing method thereof - Google Patents
Polyvinyl chloride pipe for marsh gas and manufacturing method thereof Download PDFInfo
- Publication number
- CN1844227A CN1844227A CN 200610046284 CN200610046284A CN1844227A CN 1844227 A CN1844227 A CN 1844227A CN 200610046284 CN200610046284 CN 200610046284 CN 200610046284 A CN200610046284 A CN 200610046284A CN 1844227 A CN1844227 A CN 1844227A
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- CN
- China
- Prior art keywords
- polyvinyl chloride
- marsh gas
- chloride pipe
- fire retardant
- zinc
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- 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.)
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Disclosed is a polyvinyl chloride pipe for sewage gas, where in the pipe is prepared from the following raw materials (by weight percent): polyvinyl chloride 65.0-96.5%, combustion inhibitor 3-30%, and smoke inhibiting agent 0.5-5.0%.
Description
(1) technical field:
The present invention relates to a kind of polyvinyl chloride pipe for marsh gas and preparation method thereof.
(2) background technology:
In the prior art, traditional biogas tubing is common polychloroethylene pipes, for rigid polyvinyl chloride biogas with tubing since its chlorinity up to 56%, thereby can not add fire retardant, but for the soft pvc pipe, owing to wherein be added with the softening agent up to 60phr, it is a lot of that chlorinity and oxygen index are reduced, thereby influence the flame retardant properties of soft pvc pipe.In addition because the livings cigarette amount of PVC is big, its maximum life cigarette amount up to 720 (with Rohm﹠amp; Hass XP-2 smoke box is measured), in common plastics, rank first.As seen fire-retardant to PVC, particularly press down the meaning that smoking set has particularly important.
(3) technology contents:
The object of the present invention is to provide a kind of marsh gas polychloroethylene pipes and preparation method thereof, this tubing not only production technique is simple, and cost is low, and has fire-retardant preferably and smoke suppressing.
The technical scheme that adopts is:
A kind of polyvinyl chloride pipe for marsh gas is added fire retardant and is pressed down fumicants and make by polyvinyl chloride, and the shared weight percent of its each composition is:
Polyvinyl chloride 65.0%～96.5%;
Fire retardant 3%～30%;
Press down fumicants 0.5%～5.0%.
Above-mentioned fire retardant can be made up of zinc and two kinds of materials of antimonous oxide, and both weight ratios are:
Zinc 50%;
Antimonous oxide 50%;
Above-mentioned fire retardant also can be made up of zinc and two kinds of materials of zinc borate, and both weight ratios are:
Zinc 30%～75%;
Zinc borate 25%～70%.
It is above-mentioned that to press down fumicants be molybdic oxide or ammonium octamolybdate.
Above-mentioned biogas is Φ 5mm-Φ 400mm with the tubing caliber, and bed thickness is 0.3mm-50mm.
A kind of preparation method of polyvinyl chloride pipe for marsh gas is:
By ratio of components get polyvinyl chloride, fire retardant and press down fumicants in mixing machine through heat at a high speed mix and cold mixing after, adding the screw extrusion press melt blending extrudes, processing temperature is 130～230 ℃, rotating speed is 120～180 rev/mins, extruded velocity 6-12 rice/minute, after cooling off, batch, packing, become finished product.
The above-mentioned temperature that adds is preferably 150-200 ℃, extruded velocity be preferably 8-10 rice/minute.
The present invention compared with prior art owing to added fire retardant and press down fumicants in tubing, thereby the tubing of production not only has very strong flame retardant properties, and the amount of smoke of the generation of proper ratio can reduce burning the time; Tubing of the present invention is nontoxic, corrosion-resistant, light weight, easily install, and is applicable to the special conveying of biogas, and simultaneously, tubing manufacturing process of the present invention is simple, and production cost is low, need not to add specific installation, economic benefit and obvious social benefit.
(4) embodiment:
Embodiment one
A kind of marsh gas is made by adding the polyvinyl chloride that presses down fumicants and fire retardant with polychloroethylene pipes, and its used material composition and the shared weight percent of each composition are:
Igelite 80% (Qilu Petrochemical, commercially available prod)
Fire retardant zinc 8% (commercially available prod)
Fire retardant antimonous oxide 8% (commercially available prod)
Press down fumicants molybdic oxide 4% (commercially available prod)
The preparation method:
Extrude in the hopper of main extruder in the unit adding behind above four kinds of raw material thorough mixing, extrude after drying, processing temperature is 150 ℃, and producing caliber is φ 20, and extruded velocity is at 8 meters/minute, again through sizing, obtain finished product after cooling off, batch, packing.
Embodiment two
Used material composition of this tubing and the shared weight percent of each composition are:
Igelite 78% (Cangzhou petrochemical industry, commercially available prod)
Fire retardant zinc borate 6% (U.S. big lake company, commercially available prod)
Fire retardant zinc 14% (U.S. Laurel company, commercially available prod)
Press down fumicants ammonium octamolybdate 4% (commercially available prod)
Extrude in the hopper of main extruder in the unit adding behind above-mentioned four kinds of raw material thorough mixing, extrude after drying, processing temperature is 200 ℃.Producing caliber is φ 110, and extruded velocity passes through sizing again, cools off, batches, packs back one-tenth finished product at 10 meters/minute.
Claims (7)
1, a kind of polyvinyl chloride pipe for marsh gas, it is characterized in that: this tubing is made by the polyvinyl chloride that adds fire retardant and press down fumicants, and used material composition of this tubing and the shared weight percent of each composition are: polyvinyl chloride 65.0%～96.5%, fire retardant 3%～30%, press down fumicants 0.5%～5.0%.
2, according to the described a kind of polyvinyl chloride pipe for marsh gas of claim 1, it is characterized in that: fire retardant is made up of zinc and two kinds of materials of antimonous oxide, and both weight ratios are: zinc 50%, antimonous oxide 50%.
3, according to the described a kind of polyvinyl chloride pipe for marsh gas of claim 1, it is characterized in that: fire retardant is made up of zinc and two kinds of materials of zinc borate, and both weight ratios are: zinc 30%～75%, zinc borate 25%～70%.
4, according to the described a kind of polyvinyl chloride pipe for marsh gas of claim 1, it is characterized in that: used to press down fumicants be molybdic oxide or ammonium octamolybdate.
5, according to any described a kind of polyvinyl chloride pipe for marsh gas of claim 1 to 4, it is characterized in that: described biogas is φ 5～φ 400mm with the tubing caliber, and bed thickness is 0.3mm～50mm.
6, a kind of preparation method of polyvinyl chloride pipe for marsh gas is characterized in that:
With satisfy polyvinyl chloride, fire retardant according to the described weight percent of claim 1 and press down fumicants in mixing machine through heat at a high speed mix and cold mixing after, adding the screw extrusion press melt blending extrudes, processing temperature is 130～230 ℃, rotating speed is 120～180 rev/mins, extruded velocity 6-12 rice/minute, after cooling off, batch, packing, become finished product.
7, the preparation method of a kind of polyvinyl chloride pipe for marsh gas according to claim 6 is characterized in that described processing temperature is 150-200 ℃, extruded velocity be 8-10 rice/minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046284 CN1844227A (en) | 2006-04-10 | 2006-04-10 | Polyvinyl chloride pipe for marsh gas and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046284 CN1844227A (en) | 2006-04-10 | 2006-04-10 | Polyvinyl chloride pipe for marsh gas and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1844227A true CN1844227A (en) | 2006-10-11 |
Family
ID=37063197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610046284 Pending CN1844227A (en) | 2006-04-10 | 2006-04-10 | Polyvinyl chloride pipe for marsh gas and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1844227A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329467A (en) * | 2011-07-28 | 2012-01-25 | 联塑科技发展(贵阳)有限公司 | Polyvinyl chloride pipeline and preparation method thereof |
| CN105086234A (en) * | 2015-08-03 | 2015-11-25 | 广东联塑科技实业有限公司 | Polyvinyl chloride single-wall corrugated pipe used for buildings and preparation method of polyvinyl chloride single-wall corrugated pipe |
-
2006
- 2006-04-10 CN CN 200610046284 patent/CN1844227A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329467A (en) * | 2011-07-28 | 2012-01-25 | 联塑科技发展(贵阳)有限公司 | Polyvinyl chloride pipeline and preparation method thereof |
| CN102329467B (en) * | 2011-07-28 | 2014-03-12 | 联塑科技发展(贵阳)有限公司 | Polyvinyl chloride pipeline and preparation method thereof |
| CN105086234A (en) * | 2015-08-03 | 2015-11-25 | 广东联塑科技实业有限公司 | Polyvinyl chloride single-wall corrugated pipe used for buildings and preparation method of polyvinyl chloride single-wall corrugated pipe |
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