CN104989890B - Underground double-layer reinforced and modified polyolefin (DRPO) corrugated pipe for water draining and sewage discharging - Google Patents
Underground double-layer reinforced and modified polyolefin (DRPO) corrugated pipe for water draining and sewage discharging Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/10—Peculiar tacticity
- C08L2207/14—Amorphous or atactic polypropylene
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an underground double-layer reinforced and modified polyolefin (DRPO) corrugated pipe for water draining and sewage discharging. The pipe is formed by bonding an inner wall and an outer wall through hot melting, wherein the outer wall and the inner wall are both made of modified polyolefin materials. The modified polyolefin materials comprise, by weight, 50-75 parts of polyolefin, 5-10 parts of modified polyolefin elastomer (BPOE) and 20-40 parts of activated talcum powder. The DRPO corrugated pipe is mainly used for underground water draining and sewage discharging pipes.
Description
Technical field
The invention belongs to field of polymer composite material, and in particular to a kind of buried draining blowdown is gathered with double-deck enhancing modified
Alkene DRPO corrugated tubes.
Background technology
At present, the sewerage pipeline network of China is still with traditional concrete reinforced pipe, earthen-ware pipe, cast iron pipe as main flow, but its
Difficulty of construction is high, and the connection between pipeline is complicated, often results in huge construction and wastes.Especially in long-term use, often
Often as burn into is damaged, seepage, particularly large-area effluent seepage, severe contamination underground water source less and less.Solution
The certainly hydropenia in city and pollution problem, is related to the sustainable development in city, and China is current and the great of long term growth is asked
Topic.According to the development of developed countries plastic pipe and wideling popularize for domestic industry policy, large-bore plastics are buried
Drain pipe has become the new bright spot of investment.And in numerous large-bore plastics buried drain pipe roads, due to double-wall corrugated pipe
With its unique structure design, raw material is more saved than other plastic conduits, and become the first-selection of numerous investor.
Large-caliber double-wall bellow refers generally to the corrugated tube with diameter greater than 500 mm, is currently used primarily in municipal drainage, row
Dirty system.Currently, mainly there are polrvinyl chloride (PVC), polyethylene (PE) and polypropylene in China for the raw material of corrugated tube production
(PP), wherein PVC is mainly used in the corrugated tube production of 500 below mm.The advantage of PVC dual-wall ripple pipe is polychlorostyrene second
The rigidity of alkene material is high, and the elastic modelling quantity of its material is more than polyolefine material.Therefore reaching equal ring stiffness can use less
The moment of inertia, if less wall thickness can be used using same Waveform Design.So PVC dual-wall within the specific limits
Corrugated tube is dominant in economy, but as the mobility and heat stability of pvc material are poor, produces heavy caliber
Double-wall corrugated pipe is had any problem, and the good pliability of polyolefine material, can construct at low ambient temperatures, and polyolefin pipe can
The advantages of with welding, light specific gravity, polyolefin double-wall corrugated pipe, have obtained developing faster in recent years.
From the beginning of 2003, China introduces large-caliber double-wall bellow production line in a large number. and the raw material for being adopted is mainly
HDPE, the production capacity of every production line reach 10 kt/a.The import material for producing large-caliber double-wall bellow domestic at that time
It is mainly some HDPE hollow materials and repackaging film material etc..And the common tube material of some of the country is in production large-caliber double-wall ripple
Occur during pipe melt strength not enough, product ring stiffness do not reach the problems such as requiring.
Ring stiffness and ring flexibility are the most important performance indications of tubing, because in the application of buried drain pipe, tubing is not
Bear intrinsic pressure or pressure very low, and be solely subjected to external pressure load (including dynamic load and static load).If the ring stiffness of tubing is too little,
To there is big deformation failure in tubing, thus it cannot be guaranteed that the safe handling of tubing；If ring flexibility is too low, tubing is being used
During destructible leak etc..Inorganic filler is added into, such as:Short glass fiber, Calcium Carbonate, Pulvis Talci, Kaolin, silicon ash
Stone etc., with the rigidity for reducing material cost, improving material property, but, after adding inorganic filling material in a plastic material
Typically material property can be all made to become fragile, notch impact toughness declines, the performance of material therefore suffers from significantly affecting.Increase
The toughness of plastics, usual earlier are carried out using heat-resistant powder filler, for example:ABS (polyacrylonitrile _ butadiene _ styrene)
, HIPS (impact resistant polystyrene) and PP/ EPDM [Pp/epdm (containing dicyclopentadiene)] etc.
Toughened system, rubber toughened polymer can make impact flexibility be doubled and redoubled, but due to its modulus and vitrification point it is low, to increasing
Tough plastics bring intrinsic defect, the such as rigidity of material, intensity, thermal distoftion temperature to be greatly lowered, and cost is improved etc..Polyene
Intensity that hydrocarbon composite is showed increases or toughness is improved always to sacrifice other performance as cost, so how to keep changing
The balance of property composite polyolefine material intensity and toughness is the key issue for preparing buried draining blowdown polyolefin (DRPO) tubing.
The content of the invention
It is an object of the present invention to provide a kind of buried draining blowdown is solved existing with double-deck enhancing modified polyolefin DRPO corrugated tubes
The buried problem that draining blowdown pipe ring rigidity is inadequate and ring flexibility is too low of some polyolefin.
The technical scheme is that：Buried draining blowdown with double-deck enhancing modified polyolefin DRPO corrugated tubes, the pipe by
Inner and outer wall Jing hot melt adhesives are constituted, and are divided into two ways：
The first is：
Outer wall and inwall are made using improved polyalkene composite, the preparation side of the improved polyalkene composite
Method is：
By following weight portion dispensing：50 parts of polyolefin, polyolefin adopt high density polyethylene, improved polyalkene bullet
10 parts of gonosome BPOE, 20 parts of modified talc powder, by double screw extruder melt pelletization after then mix raw material, are changed
Property composite polyolefine material, barrel temperature are respectively：180 DEG C, 195 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, die temperature is 215
℃；
Modified polyolefine elastomer BPOE is prepared by the following method：By following parts by weight raw material：
POE：100 parts
Styrene：2 parts
Glycidyl methacrylate：6 parts
Cumyl peroxide：0.1 part；
Grafting equipment adopts double screw extruder, prepares modified POE with reaction extrusion process, and process conditions are as follows：
Each section of temperature of double screw extruder be：160 DEG C, 170 DEG C, 185 DEG C, 190 DEG C, 190 DEG C；
The preparation method of modified talc powder is：By following parts by weight raw material：
100 parts of Pulvis Talci,
1 part of silane coupler,
0.5 part of aluminate coupling agent；
3h first will be dried at load weighted Pulvis Talci in an oven 100 DEG C, in adding high-speed mixer, be added in proportion
Load weighted aluminate coupling agent, mixed at high speed 5 minutes are subsequently adding silane coupler, mixed at high speed 10 minutes；
It is for second：
HDPE of the inwall raw material using percentage by weight 85%, the ultra-high molecular weight polyethylene of percentage by weight 15%
UHMW-PE, outer wall are made using improved polyalkene composite, and the preparation method of the improved polyalkene composite is：
By following weight portion dispensing：75 parts of polyolefin, polyolefin adopt atactic copolymerized polypropene PPR, improved polyalkene bullet
5 parts of gonosome BPOE, 20 parts of modified talc powder, by double screw extruder melt pelletization after then mix raw material, are changed
Property composite polyolefine material, barrel temperature are respectively：180 DEG C, 195 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, die temperature is 215
℃；
Modified polyolefine elastomer BPOE is prepared by the following method：By following parts by weight raw material：
POE：100 parts
Styrene：7 parts
Glycidyl methacrylate：3 parts
Cumyl peroxide：0.4 part；
Grafting equipment adopts double screw extruder, prepares modified POE with reaction extrusion process, and process conditions are as follows：
Each section of temperature of double screw extruder be：160 DEG C, 170 DEG C, 185 DEG C, 190 DEG C, 190 DEG C；
The preparation method of modified talc powder is：By following parts by weight raw material：
100 parts of Pulvis Talci,
3 parts of silane coupler,
1.5 parts of aluminate coupling agent；
3h first will be dried at load weighted Pulvis Talci in an oven 100 DEG C, in adding high-speed mixer, be added in proportion
Load weighted aluminate coupling agent, mixed at high speed 5 minutes are subsequently adding silane coupler, mixed at high speed 10 minutes.
Preparation method is：Inner-wall material and outer wall materials are separately added in two extruderses and are extruded, material is by extrusion
Machine screw rod heating fusion plastification is delivered to machine head port mould, and pipe material inner wall be by internal diameter calibration sleeve evacuation cooling and shaping again,
, internally under the collective effect of air pressure and external vacuum suction and module is in close contact molding, tubing is inside and outside for outer pipe wall
Wall is equably fused together, and internal layer extrudes each section of temperature：（℃）：180,185,195,200,200, outer layer extrude each section it is warm
Degree：175,180,190,195,195.
Polyolefinelastomers (POE) is Dupont Dow elastomers company Insite techniques and limits geometry
New type polyolefin elastomeric material made by configuration catalysis technique (CGCT), it is short with uniform with narrow molecular weight distribution
The features such as side chain is distributed, this makes the main performance of POE project very much, and many performance indications have exceeded conventional elastomers, such as POE tools
Have higher intensity and percentage elongation, ageing-resistant performance it is good as its strand is saturation, contained tertiary carbon atom is relatively fewer, because
And there is excellent heat-proof aging and anti-ultraviolet property；On the other hand, constrained geometry catalyst technology (CGCT) can be with
Control introduces long-chain branch in polymer line style short-chain branch branched structure, so as to improve the processing rheological property of polymer, POE
The particularity of molecular structure imparts its excellent mechanical property, rheological property and anti-ultraviolet property.Additionally, it also have and
Polyolefin affinity is good, low-temperature flexibility is good, cost performance ratio, thus is widely used in modifying plastics.It is this new
The appearance of material causes the strong interest of whole world plastics and rubber industry circle, and the also modified and processing for polymer brings entirely
New theory.
In the present invention, in order to improve the compatibility between polyolefine material and between polyolefin and inorganic particulate, using molten
Melt crosslinking technology, prepare modified polyolefine elastomer BPOE, the modified polyolefin elastomer used in improved polyalkene composite
Body BPOE, can improve the compatibility between polyolefine material and between polyolefin and inorganic particulate.
In the present invention, silane coupler process is favourable to the rigidity for increasing talc powder filled polypropylene system, comparatively,
Aluminate coupling agent process is favourable to the toughness for improving talc powder filled polypropylene system, in order to give full play to two kinds of coupling agents
Advantage, it is 2 that the present invention presses silane coupler with aluminate coupling agent:The Pulvis Talci that 1 proportional manner is processed, plays two kinds of couplings
The synergism of agent, prepares modified talc powder.
The present invention is had the advantage that compared with prior art：
The present invention adopts modified POE and Pulvis Talci to form composite with polyolefin, is prepared using the composite
The outer wall of bimetallic tube, the ring stiffness and ring flexibility of prepared bimetallic tube are all significantly improved, and can meet heavy caliber subdrainage row
The performance requirement of dirty pipe.
Specific embodiment
Embodiment 1
Prepare modified polyolefine elastomer BPOE
By following parts by weight raw material：
POE (POE)：100 parts
Styrene (St)：2 parts
Glycidyl methacrylate (GMA)：6 parts
Cumyl peroxide (DCP)：0.1 part；
Grafting equipment adopts double screw extruder, prepares modified POE with reaction extrusion process, and process conditions are as follows：
Each section of temperature of double screw extruder be（℃）：160,170,185,190,190.
Prepare modified talc powder
By following parts by weight raw material：
100 parts of Pulvis Talci,
1 part of silane coupler,
0.5 part of aluminate coupling agent.
3h first will be dried at load weighted Pulvis Talci in an oven 100 DEG C, in adding high-speed mixer, be added in proportion
Load weighted aluminate coupling agent, mixed at high speed 5 minutes are subsequently adding silane coupler, mixed at high speed 10 minutes；
Prepare improved polyalkene composite
50 parts of polyolefin, polyolefin adopt high density polyethylene, 10 parts of modified polyolefine elastomer BPOE to be modified
20 parts of Pulvis Talci, by double screw extruder melt pelletization after then mix raw material, obtains improved polyalkene composite,
Barrel temperature is respectively（℃）：180,195,210,220,220, die temperature is（℃）：215.
Prepare the buried draining blowdown bilayer enhancing modified polyolefin DRPO corrugated tubes of the present invention
Outer wall raw material and inwall raw material are using the improved polyalkene composite in the present invention.
Inner-wall material and outer wall materials are separately added in two extruderses and are extruded, material is molten by extruder screw heating
Melt plasticizing and be delivered to machine head port mould, and pipe material inner wall is by internal diameter calibration sleeve evacuation cooling and shaping again, including outer pipe wall
Molding is in close contact with module under the collective effect of portion's air pressure and external vacuum suction, the inside and outside wall of tubing is equably fused
Together, internal layer extrudes each section of temperature：（℃）：180,185,195,200,200, outer layer extrudes each section of temperature：175,180,
190,195,195.
Table 1：The physical and mechanical property of DRPO corrugated tubes prepared by embodiment 1
Embodiment 2
Prepare modified polyolefine elastomer BPOE
By following parts by weight raw material：
POE (POE)：100 parts
Styrene (St)：7 parts
Glycidyl methacrylate (GMA)：3 parts
Cumyl peroxide (DCP)：0.4 part；
Grafting equipment adopts double screw extruder, prepares modified POE with reaction extrusion process, and process conditions are as follows：
Each section of temperature of double screw extruder be（℃）：160,170,185,190,190.
Prepare modified talc powder
By following parts by weight raw material：
100 parts of Pulvis Talci,
3 parts of silane coupler,
1.5 parts of aluminate coupling agent.
3h first will be dried at load weighted Pulvis Talci in an oven 100 DEG C, in adding high-speed mixer, be added in proportion
Load weighted aluminate coupling agent, mixed at high speed 5 minutes are subsequently adding silane coupler, mixed at high speed 10 minutes；
Prepare improved polyalkene composite
75 parts of polyolefin, polyolefin adopt atactic copolymerized polypropene PPR, 5 parts of modified polyolefine elastomer BPOE, are modified
20 parts of Pulvis Talci, by double screw extruder melt pelletization after then mix raw material, obtains improved polyalkene composite,
Barrel temperature is respectively（℃）：180,195,210,220,220, die temperature is（℃）：215.
Prepare the buried draining blowdown bilayer enhancing modified polyolefin DRPO corrugated tubes of the present invention
Outer wall raw material adopts 85%HDPE using the improved polyalkene composite in the present invention, inwall raw material,
15% ultra-high molecular weight polyethylene（UHMW-PE）.
Inner-wall material and outer wall materials are separately added in two extruderses and are coextruded, an extruding pipe material outer wall, one
Extruding pipe material inwall, material heat fusion plastification by extruder screw and are delivered to machine head port mould, and pipe material inner wall is by interior
Footpath calibration sleeve evacuation cooling and shaping again, outer pipe wall is internally under the collective effect of air pressure and external vacuum suction and mould
Block is in close contact molding, and the inside and outside wall of tubing is equably fused together, and internal layer extrudes each section of temperature：（℃）：180,185,195,
200,200, outer layer extrudes each section of temperature：175,180,190,195,195.
Table 2：The physical and mechanical property of tubing prepared by embodiment 2
Embodiment described above only expresses the specific embodiment of the application, and its description is more concrete and detailed, but and
Therefore the restriction to the application protection domain can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, on the premise of conceiving without departing from technical scheme, some deformations and improvement can also be made, these belong to this
The protection domain of application.
Claims (2)
1. buried draining blowdown is with double-deck enhancing modified polyolefin DRPO corrugated tubes, it is characterised in that the pipe is by inner and outer wall
Jing hot melt adhesives are constituted, and are divided into two ways：
The first is：
Outer wall and inwall are made using improved polyalkene composite, the preparation method of the improved polyalkene composite
For：
By following weight portion dispensing：50 parts of polyolefin, polyolefin adopts high density polyethylene, modified polyolefine elastomer
10 parts of BPOE, 20 parts of modified talc powder, by double screw extruder melt pelletization after then mix raw material, obtain modified poly-
Alkene composite, barrel temperature are respectively：180 DEG C, 195 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, die temperature is 215 DEG C；
Modified polyolefine elastomer BPOE is prepared by the following method：By following parts by weight raw material：
POE：100 parts
Styrene：2 parts
Glycidyl methacrylate：6 parts
Cumyl peroxide：0.1 part；
Grafting equipment adopts double screw extruder, prepares modified POE with reaction extrusion process, and process conditions are as follows：
Each section of temperature of double screw extruder be：160 DEG C, 170 DEG C, 185 DEG C, 190 DEG C, 190 DEG C；
The preparation method of modified talc powder is：By following parts by weight raw material：
100 parts of Pulvis Talci,
1 part of silane coupler,
0.5 part of aluminate coupling agent；
3h first will be dried at load weighted Pulvis Talci in an oven 100 DEG C, in adding high-speed mixer, be added and is weighed in proportion
Good aluminate coupling agent, mixed at high speed 5 minutes are subsequently adding silane coupler, mixed at high speed 10 minutes；
It is for second：
HDPE, the ultra-high molecular weight polyethylene UHMW- of percentage by weight 15% of the inwall raw material using percentage by weight 85%
PE, outer wall are made using improved polyalkene composite, and the preparation method of the improved polyalkene composite is：
By following weight portion dispensing：75 parts of polyolefin, polyolefin adopt atactic copolymerized polypropene PPR, modified polyolefine elastomer
5 parts of BPOE, 20 parts of modified talc powder, by double screw extruder melt pelletization after then mix raw material, obtain modified poly-
Alkene composite, barrel temperature are respectively：180 DEG C, 195 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, die temperature is 215 DEG C；
Modified polyolefine elastomer BPOE is prepared by the following method：By following parts by weight raw material：
POE：100 parts
Styrene：7 parts
Glycidyl methacrylate：3 parts
Cumyl peroxide：0.4 part；
Grafting equipment adopts double screw extruder, prepares modified POE with reaction extrusion process, and process conditions are as follows：
Each section of temperature of double screw extruder be：160 DEG C, 170 DEG C, 185 DEG C, 190 DEG C, 190 DEG C；
The preparation method of modified talc powder is：By following parts by weight raw material：
100 parts of Pulvis Talci,
3 parts of silane coupler,
1.5 parts of aluminate coupling agent；
3h first will be dried at load weighted Pulvis Talci in an oven 100 DEG C, in adding high-speed mixer, be added and is weighed in proportion
Good aluminate coupling agent, mixed at high speed 5 minutes are subsequently adding silane coupler, mixed at high speed 10 minutes.
2. preparation side of the buried draining blowdown according to claim 1 with double-deck enhancing modified polyolefin DRPO corrugated tubes
Method：Characterized in that, inner-wall material and outer wall materials are separately added in two extruderses extruding, material passes through extruder screw
Heating fusion plastification is delivered to machine head port mould, and pipe material inner wall is by internal diameter calibration sleeve evacuation cooling and shaping again, outside tubing
, internally under the collective effect of air pressure and external vacuum suction and module is in close contact molding, the inside and outside wall of tubing is uniform for wall
Fuse together, internal layer extrudes each section of temperature：180 DEG C, 185 DEG C, 195 DEG C, 200 DEG C, 200 DEG C, outer layer extrudes each section of temperature：
175 DEG C, 180 DEG C, 190 DEG C, 195 DEG C, 195 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421058.8A CN104989890B (en) | 2015-07-17 | 2015-07-17 | Underground double-layer reinforced and modified polyolefin (DRPO) corrugated pipe for water draining and sewage discharging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510421058.8A CN104989890B (en) | 2015-07-17 | 2015-07-17 | Underground double-layer reinforced and modified polyolefin (DRPO) corrugated pipe for water draining and sewage discharging |
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| CN104989890A CN104989890A (en) | 2015-10-21 |
| CN104989890B true CN104989890B (en) | 2017-05-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481895A (en) * | 2016-11-07 | 2017-03-08 | 合浦县市政管理局 | Draining blowdown tubing |
| CN106523803A (en) * | 2016-11-07 | 2017-03-22 | 合浦县市政管理局 | Municipal water and dirt drainage pipeline |
| CN106810736A (en) * | 2017-02-08 | 2017-06-09 | 四川省川杭塑胶科技有限公司 | A kind of basalt fibre strengthens the hollow wound drain pipe of improved polyalkene two flat walls |
| CN106947142A (en) * | 2017-04-09 | 2017-07-14 | 贵州枫叶管业有限公司 | A kind of enhanced HDPE double-wall corrugated pipes and preparation method thereof |
| CN107269949A (en) * | 2017-06-26 | 2017-10-20 | 江苏长风波纹管有限公司 | A kind of salt-soda soil is modified HDPE bellowss with buried large-caliber double-wall |
| CN107189231A (en) * | 2017-07-03 | 2017-09-22 | 重庆川环科技有限公司 | Polypropylene reinforced double-wall corrugated pipe |
| CN110581236B (en) * | 2018-06-07 | 2023-12-19 | 深圳科创新源新材料股份有限公司 | Buried system for electrical equipment |
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