CN204592596U - A kind of fire-proof heat-insulating polyvinyl piping materials - Google Patents
A kind of fire-proof heat-insulating polyvinyl piping materials Download PDFInfo
- Publication number
- CN204592596U CN204592596U CN201520022768.9U CN201520022768U CN204592596U CN 204592596 U CN204592596 U CN 204592596U CN 201520022768 U CN201520022768 U CN 201520022768U CN 204592596 U CN204592596 U CN 204592596U
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- fire
- heat
- proof heat
- insulating
- piping materials
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Abstract
The utility model provides a kind of fire-proof heat-insulating polyvinyl piping materials, be made up of inner layer polyethylene tubing body layer, middle fire-proof heat-insulating layer and outer layer polyethylene tubing heat crucible zone, described middle fire-proof heat-insulating layer adopts glass fibre flameproof textile to be entwined, and is bondd by coupling agent and grafted polyolefinic resin with internal and external layer polyvinyl piping materials.Because glass fibre flameproof textile has fire prevention and adiabatic feature, so the fire-proof heat-insulating polyvinyl piping materials that the utility model provides has excellent fire-proof heat-insulating effect, solve the heat-resisting difference of common polythene, inflammable shortcoming, simultaneously compared with adding the polyvinyl piping materials of fire retardant modification, avoid the problem of losing polythene material intensity due to the interpolation of fire retardant.
Description
Technical field
The utility model relates to a kind of plastic tube, specifically a kind of fire-proof heat-insulating polyvinyl piping materials.
Background technique
Polyvinyl piping materials has lightweight, easy for installation, corrosion-resistant, the feature such as pliability is good, long service life, along with the development of urbanization process and the propelling of rural safe water works, polyvinyl piping materials is widely used in rural safe drinking-water, urban water supply pipe network.But, during for fields such as fire-fighting, combustion gas, chemical industry, there is potential safety hazard in the poly-inflammable poor heat resistance of second material itself.
Prior art improves the flame retardant property of poly-second tubing by adding a certain proportion of fire retardant in polyethylene, but because fire retardant is all generally inorganic matter or micromolecular compound, the mechanical property of itself can not show a candle to polyethylene, although so improve the flame retarding of tubing, have lost working strength and the pliability of tubing.Chinese utility model patent 201320582976.5 discloses a kind of frpf polyvinyl piping materials, Chinese utility model patent 201320581585.1 also discloses a kind of polyvinyl piping materials of heat-insulation and heat-preservation, although above two kinds of technology are by arranging fire resistant coating and asbestos gauge, or the object that fire resistant heat preserving cotton reaches fireproof heat insulating is set, but no matter be asbestos or heat-preservation cotton, its intensity is all very low, reduce the working strength of tubing, and outermost surface is not polythene material, hot melting way cannot be used to connect.Chinese utility model patent 200720184425.8 discloses a kind of polyethylene enhanced tube of fiber weaving enhanced belt, the fiber-reinforced tape of Stagger-wrap is provided with in the middle of tubing, but fiber-reinforced tape only serves humidification, do not possess flame retardant property, more do not possess fire-proof heat-insulating performance.
Summary of the invention
In order to solve the problems referred to above of prior art, the utility model adopts following technological scheme:
A kind of fire-proof heat-insulating polyvinyl piping materials, be made up of inner layer polyethylene tubing body layer, middle fire-proof heat-insulating layer and outer layer polyethylene tubing heat crucible zone, described middle fire-proof heat-insulating layer adopts glass fibre flameproof textile to be entwined, and is bondd by coupling agent and grafted polyolefinic resin with inner layer polyethylene tubing body layer, outer layer polyethylene tubing heat crucible zone; Described inner layer polyethylene tubing layer wall thickness accounts for 60% ~ 80% of the total wall thickness of tubing, and described middle fire-proof heat-insulating layer accounts for 5% ~ 10% of the total wall thickness of tubing, and described outer layer polyethylene tubing heat crucible zone accounts for 15% ~ 30% of the total wall thickness of tubing.
Described grafted polyolefinic resin is maleic anhydride grafted polyethylene.
Compared with prior art, a kind of fire-proof heat-insulating polyvinyl piping materials involved by the utility model, adopt glass fibre flameproof textile as fire-proof heat-insulating layer, because glass fibre flameproof textile also has resistance to fire prevention and adiabatic feature except having glass fiber reinforcement performance, so the fire-proof heat-insulating polyvinyl piping materials that the utility model provides has excellent fire-proof heat-insulating effect, solve the heat-resisting difference of common polythene, inflammable shortcoming, simultaneously compared with adding the polyvinyl piping materials of fire retardant modification, avoid the problem of losing polythene material intensity due to the interpolation of fire retardant.Outer layer polyethylene heat crucible zone is set, facilitates tubing hot-melt adhesive paste, ensure tubing join strength.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein: 1, outer layer polyethylene tubing heat crucible zone; 2, middle fire-proof heat-insulating layer; 3, inner layer polyethylene tubing body layer; 4, grafted polyolefinic resin.
Embodiment:
See Fig. 1, a kind of fire-proof heat-insulating polyvinyl piping materials of the present utility model, be made up of inner layer polyethylene tubing body layer 3, middle fire-proof heat-insulating layer 2 and outer layer polyethylene tubing heat crucible zone 1, described middle fire-proof heat-insulating layer 2 adopts glass fibre flameproof textile to be entwined, and is bondd by coupling agent and grafted polyolefinic resin 4 with inner layer polyethylene tubing body layer 3, outer layer polyethylene tubing heat crucible zone 1.Described inner layer polyethylene tubing layer 3 wall thickness accounts for 75% of the total wall thickness of tubing, and described middle fire-proof heat-insulating layer 2 accounts for 7% of the total wall thickness of tubing, and described outer layer polyethylene tubing heat crucible zone accounts for 18% of the total wall thickness of tubing 1.
First extrude inner layer polyethylene tubing body layer 3 and maleic anhydride grafted polyethylene resin 4 with an extruder and a co-extrusion machine by co-extruding mould during production simultaneously, after sizing by hot blast by maleic anhydride grafted polyethylene resin 4 preheating, be bonded as one being wrapped on inner layer polyethylene tubing body layer 3 with the glass fibre flameproof textile of silane coupler process by the maleic anhydride grafted polyethylene resin 4 after preheating, then extrude outer layer polyethylene tubing heat crucible zone 3 and maleic anhydride grafted polyethylene resin 4 with an other extruder and an other co-extrusion machine by co-extruding mould simultaneously, be coated on outside glass fiber flameproof textile, just a kind of fire-proof heat-insulating polyvinyl piping materials is obtained after cooling and shaping.This tubing fire-proof heat-insulating is effective, and working strength is high, and production technology is simple, easy to install.
Above-described embodiment is only for clearly example being described, and the restriction not to mode of execution.To those of ordinary skill in the art, can also make other changes in different forms on the basis of the above description.And thus the apparent change of extending out or variation be still among protection domain of the present utility model.
Claims (2)
1. a fire-proof heat-insulating polyvinyl piping materials, be made up of inner layer polyethylene tubing body layer, middle fire-proof heat-insulating layer and outer layer polyethylene tubing heat crucible zone, it is characterized in that: described middle fire-proof heat-insulating layer adopts glass fibre flameproof textile to be entwined, and is bondd by coupling agent and grafted polyolefinic resin with inner layer polyethylene tubing body layer, outer layer polyethylene tubing heat crucible zone; Described inner layer polyethylene tubing layer wall thickness accounts for 60% ~ 80% of the total wall thickness of tubing, and described middle fire-proof heat-insulating layer accounts for 5% ~ 10% of the total wall thickness of tubing, and described outer layer polyethylene tubing heat crucible zone accounts for 15% ~ 30% of the total wall thickness of tubing.
2. a kind of fire-proof heat-insulating polyvinyl piping materials according to claim 1, is characterized in that: described grafted polyolefinic resin is maleic anhydride grafted polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022768.9U CN204592596U (en) | 2015-01-14 | 2015-01-14 | A kind of fire-proof heat-insulating polyvinyl piping materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022768.9U CN204592596U (en) | 2015-01-14 | 2015-01-14 | A kind of fire-proof heat-insulating polyvinyl piping materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592596U true CN204592596U (en) | 2015-08-26 |
Family
ID=53928747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520022768.9U Expired - Fee Related CN204592596U (en) | 2015-01-14 | 2015-01-14 | A kind of fire-proof heat-insulating polyvinyl piping materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073133A (en) * | 2016-04-18 | 2018-12-21 | 洛克威尔国际公司 | The production method and duct segments of isolated pipe segment for pipe-line system |
-
2015
- 2015-01-14 CN CN201520022768.9U patent/CN204592596U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073133A (en) * | 2016-04-18 | 2018-12-21 | 洛克威尔国际公司 | The production method and duct segments of isolated pipe segment for pipe-line system |
| CN109073133B (en) * | 2016-04-18 | 2020-10-23 | 洛科威国际有限公司 | Method for producing an insulated pipe section for a pipe system and pipe section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160114 |
|
| EXPY | Termination of patent right or utility model |