CN107254087A - One kind enhancing composite polyethylene binary wall twisting and pipe and preparation method thereof - Google Patents
One kind enhancing composite polyethylene binary wall twisting and pipe and preparation method thereof Download PDFInfo
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- CN107254087A CN107254087A CN201710318421.2A CN201710318421A CN107254087A CN 107254087 A CN107254087 A CN 107254087A CN 201710318421 A CN201710318421 A CN 201710318421A CN 107254087 A CN107254087 A CN 107254087A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/06—Polyethene
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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
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- 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
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to pipe technology field, specifically, it is a kind of enhancing composite polyethylene double-walled (also known as hollow wall) winding pipe and preparation method thereof, described enhancing composite polyethylene binary wall twisting and pipe is formed through spiral winding and with bonding adhesive tape bonding by enhancing composite polyethylene hollow, rectangular pipe.The present invention passes through the change to composite polyethylene binary wall twisting and pipe formula for raw stock and preparation method, overcome the shortcoming of existing polyethylene double-wall winding pipe, significantly improve the toughness and rigidity of polyethylene double-wall winding pipe, improve the heat-resisting quantity and chemical stability of product, the shrinkage factor of winding pipe is reduced, dimensional stability is improved；Because the polyacrylic crystallinity for playing humidification is more much higher than polyethylene, and the nucleator for improving crystallinity and crystallization rate is added again in inventive formulation as modified additive, in actual production, significantly improve the cooling and shaping speed of product, thus production efficiency is substantially increased, production cost has been saved.
Description
Technical field
It is a kind of enhancing composite polyethylene double-walled (also known as hollow wall) specifically the present invention relates to pipe technology field
Winding pipe and preparation method thereof.
Background technology
High-density polyethylene double-wall winding pipe with high density polyethylene (HDPE) (HDPE) be primary raw material, using special expressing technique
It is entwined under hot melt state, its axial tube wall section is that double-walled is I-shaped, and inwall densification is smooth, hollow, tubing matter itself
Amount is light and intensity is high.Due to its unique moulding process, the heavy caliber pipe that bore reaches 3000mm can be produced.As a kind of new
The chemical building material of type, HDPE binary wall twisting and pipes have the advantages that lightweight, corrosion-resistant, tube wall is smooth, conveyance capacity is big, in China
Got a lot of applications in sewerage system process of construction.
Although PE pipelines toughness is very well, generally existing poor rigidity, shrinkage factor is big, poor dimensional stability, heat resisting temperature
Low shortcoming.
Chinese patent literature CN102691832A discloses a kind of fiberglass reinforced HDPE binary wall twisting and pipes and preparation method thereof,
It is welded by fiberglass reinforced HDPE plastic pipe through spiral winding and with plastic hot melt glue, fiberglass reinforced HDPE plastic pipe therein
For hollow, rectangular fiberglass reinforced HDPE plastic pipe of the weight percent content between 5%-40% of roving glass fiber.In the prior art
Polyethylene wound pipe good toughness, resistance to low temperature is excellent；But it is generally relatively poor with rigidity, heat resisting temperature is low, receives
Shrinkage is big, and dimensional stability is poor, the shortcomings of light aging resisting property is poor, and cost is higher.
The content of the invention
It is an object of the invention to overcome shortcoming of the prior art, there is provided one kind enhancing composite polyethylene binary wall twisting and pipe
And preparation method thereof, on the premise of pipe performance is ensured, the toughness and rigidity of polyethylene double-wall winding pipe are preferably improved, is carried
High tubing heat resisting temperature, dimensional stability and light aging resisting property, while reducing production cost.
The first aspect of the present invention strengthens composite polyethylene binary wall twisting and pipe there is provided one kind, and described enhancing is combined poly- second
Alkene binary wall twisting and pipe is formed through spiral winding and with bonding adhesive tape bonding, described life by enhancing composite polyethylene hollow, rectangular pipe
The material of production enhancing composite polyethylene hollow, rectangular pipe includes following components in parts by weight：
The material of described production bonding adhesive tape includes following components in parts by weight：
The material of described production enhancing composite polyethylene hollow, rectangular pipe also includes similar returns 2- in parts by weight
25 parts；The material that described production bonds adhesive tape also includes similar returns 2-25 parts in parts by weight；Described similar reuse
Material refers to the broken feed back of the enhancing composite polyethylene binary wall twisting and pipe of same composition, the off-dimension pipe for example produced
Material crushes reuse, and its raw material proportioning is identical with above-mentioned enhancing composite polyethylene binary wall twisting and pipe, or confirmable tool
There are other regeneration material of similar compositions and performance, cost of material can be reduced by adding similar returns, it is to avoid be wasted.
The internal diameter of described enhancing composite polyethylene binary wall twisting and pipe is generally 150-3000mm, can also be according to client's need
Customize other sizes, the cavity size of described hollow, rectangular pipe, can also in addition to the arbitrary dimension for meeting Standard
Needed to be customized according to other particular/special requirements.
The melt index of described high density polyethylene (HDPE) is 0.08-0.14g/10min (2.16kg), and density is 0.941-
The luxuriant and rich with fragrance TR-480 of 0.945g/CC, preferably Shanghai gold.
The melt index that described polypropylene is is≤0.20g/10min (230 DEG C, 2.16kg), preferably Beijing Yanshan Mountain stone
Change the PPR-ED-001 with Nanjing Nanjing petrochemical industry.
Described LLDPE (LLDPE), the 7042N of mainly preferred Sinopec.Adjust and make as toughness
With.It is after sufficiently stretching, due to crystallizing and being orientated so that it has very for improving tensile strength and shock resistance
It is big to help.
Described modifying plastics auxiliary agent is nucleator, selected from sorbitol derivatives class, metal carboxylate nucleator etc., is used for
Improve crystallinity and the uniformity of crystallization so that the shrinkage factor of product diminishes, and effectively improves the performances such as the dimensional stability of product.
Also play the role of to raising production efficiency larger.
Described antioxidant is composite antioxidant, improves processing stability and article durable performance；It is preferred that composite antioxidant
B215, B225, in terms of product producer, preferred BASF.
Described enhancing is selected from the work(being made based on super-fine active calcium carbide, talcum powder or mica with filling master batch
Can property filling master batch.The present invention is as a result of conical double-screw structure, so using the pulverulent fillers of certain mesh number, can be with
Cost of material is greatly reduced.
Described Masterbatch is exactly colouring agent, such as black agglomerate.
Described water suction master batch, that is, defoamer, function are water suctions.
Described lubricant is exactly the auxiliary agent for playing lubrication in process of production, generally PE waxes or PP waxes.
Described bonding adhesive tape is similar to the composition of raw materials of hollow, rectangular pipe, can make bonded adhesives bar and hollow, rectangular pipe
There is good compatibility, make bonding more firm, the better tightness of finished product tubing.Simultaneously in view of to physical property because
Element, formula rate has part variation.
The second aspect of the present invention there is provided it is a kind of it is any of the above-described enhancing composite polyethylene binary wall twisting and pipe preparation method,
Comprise the following steps：
A, according to it is described formula weigh dispensing and mix respectively obtain preparation enhancing composite polyethylene hollow, rectangular pipe
With the compound of bonding adhesive tape；
B, will enhancing composite polyethylene hollow, rectangular pipe compound be put on double screw extruder, through mould extrusion and vacuum
Cooling and shaping, obtains strengthening composite polyethylene hollow, rectangular pipe；And cause it to there are enough stretching orientations before cooling and shaping
Ensure with relatively high intensity.
C, bonding adhesive tape compound is put into adhesive tape extruder and extrudes bonding adhesive tape, the enhancing in step B is combined
Polyethylene hollow, rectangular pipe carries out spiral winding on tube forming winding disc, and is bonded simultaneously by bonding adhesive tape, is cooled and shaped
And after cutting, described enhancing composite polyethylene binary wall twisting and pipe is made.
Described double screw extruder is conical double-screw, and extruder temperature is controlled in 180-230 DEG C of interval, rotating speed control
It need to match with the control speed of production specification and forming disk.
The invention has the advantages that：
The present invention is overcome existing by the change to composite polyethylene binary wall twisting and pipe formula for raw stock and preparation method
The shortcoming of polyethylene double-wall winding pipe, significantly improves the toughness and rigidity of polyethylene double-wall winding pipe, improves the resistance to of product
High temperatures and chemical stability, reduces the shrinkage factor of winding pipe, improves dimensional stability；Due to playing the polypropylene of humidification
Crystallinity it is more much higher than polyethylene, and add the nucleator for improving crystallinity and crystallization rate again in inventive formulation
As modified additive, in actual production, the cooling and shaping speed of product is significantly improved, production effect is thus substantially increased
Rate, has saved production cost.In addition, the addition of similar returns, on the premise of properties of product are ensured, has been greatly reduced production
The cost of product.
Embodiment
The embodiment provided with reference to embodiment the present invention elaborates.
Following examples medium high density polyethylene is from the luxuriant and rich with fragrance TR-480 of Shanghai gold, and polypropylene is from Nanjing Nanjing petrochemical industry
PPR-ED-001, LLDPE selects the 7042N of Sinopec, and enhancing selects superfine active carbonic acid with filling master batch
Calcium, lubricant selects PE waxes, and modifying plastics selection of auxiliary sorbitol derivatives class nucleator, antioxidant is compound from BASF
Antioxidant B215.
Embodiment a-d
Dispensing is weighed according to the formula be put into mix in batch mixer respectively obtain and prepare the hollow square of composite polyethylene
The compound of shape pipe and bonding adhesive tape；
Composite polyethylene hollow, rectangular pipe compound is put on conical double screw extruder, extruder temperature control exists
In 180-230 DEG C of interval, shaped through mould extrusion and vacuum cooled, obtain strengthening composite polyethylene hollow, rectangular pipe；
Bonding adhesive tape compound is put into adhesive tape extruder and bonding adhesive tape is extruded, by the composite polyethylene in step B
Hollow, rectangular pipe carries out spiral winding on tube forming winding disc, and is bonded simultaneously by bonding adhesive tape, is cooled and shaped and cuts
Afterwards, described enhancing composite polyethylene binary wall twisting and pipe is made.
Table 1：The formula of each raw material of composite polyethylene hollow, rectangular pipe in embodiment a-d and comparative example e
Note：Comparative example e refers to that the standard that most enterprises produce HDPE hollow spiral tubes up to standard in the prior art is matched somebody with somebody
Side, typically all uses single screw rod equipment, and produced using pellet.
The product of production is formulated with example a-d and comparative example e carries out comprehensive comparative test：It is shown in Table 2；
Comparative example e experimental conditions：1. same production line；2. identical technique (including temperature, melt pressure, vacuum are cold
But the vacuum of shaping box, cooling water temperature etc.)；3. the wall thickness of sample is identical with every meter of weight；
4. test condition is identical (same project is detected on the same equipment).
Various performance and cost price comparison sheets between the embodiment a-d of table 2 and comparative example e products
As can be seen from Table 2：
1. speed is cooled and shaped as polyacrylic consumption is improved to accelerate；Due to playing the polyacrylic crystallization of humidification
Degree is more much higher than polyethylene, and adds again in inventive formulation and to improve the nucleator of crystallinity and crystallization rate as changing
Property auxiliary agent, in actual production, significantly improve the cooling and shaping speed of product, thus substantially increase production efficiency, save
Production cost.
2. due to polyacrylic architectural characteristic and physical characteristic, the pliability of product can be with the improve of polyacrylic consumption
Reduction；Reduced also with the increase of filling master batch.
3. within the specific limits, the ring stiffness of product can be improved with the increase of polypropylene consumption；Also can be with filling
The increase of masterbatch and improve；But must take into account pliability and other performances will meet standard requirement.
4. due to the characteristic of pp material, heat resisting temperature will be apparently higher than polyethylene；So being not difficult to draw in reality above
Apply in example, heat resisting temperature is improved as polyacrylic consumption increases.
5. in terms of shock resistance, polypropylene consumption can meet impact test's requirement in certain scope；But it is single
List is from the aspects of test data, and with the lifting of polypropylene consumption, the impact property of product can also decline therewith；Inserts is just
It is more obvious.
6. due to the high-crystallinity characteristic of pp material, and there is nucleator to make modified additive cooperation again, so, implementing
It can see in example, within the specific limits, with the increase and the increase of filling master batch of polypropylene consumption, the dimensionally stable of product
Property is also accordingly improved.But this other performance indications that must take into account product meets standard requirement.
7., can be obvious so adding polypropylene because pp material is more much lower than polyethylene from formulation cost
Reduce production cost；And the filling master batch that the present invention is used in the selection of filling master batch than former prior art has sizable
Price advantage, so in formula totle drilling cost, the present invention has obvious price advantage.
8. because the product cooling shaping speed of the present invention is significantly better than original technology so that speed of production and efficiency are higher than
Original technology about 40%, greatly reduces production cost.
The preferred embodiment to the invention is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make a variety of equivalent on the premise of without prejudice to the invention spirit
Modification or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (9)
1. one kind enhancing composite polyethylene binary wall twisting and pipe, it is characterised in that described enhancing composite polyethylene binary wall twisting and pipe
Formed by enhancing composite polyethylene hollow, rectangular pipe through spiral winding and with bonding adhesive tape bonding, described production enhancing is compound poly-
The material of ethene hollow, rectangular pipe includes following components in parts by weight：
The material of described production bonding adhesive tape includes following components in parts by weight：
2. enhancing composite polyethylene binary wall twisting and pipe according to claim 1, it is characterised in that described production enhancing is multiple
Close the material of polyethylene hollow, rectangular pipe also includes similar returns 2-25 parts in parts by weight；Described production bonds adhesive tape
Material also includes similar returns 2-25 parts in parts by weight；Described similar returns refers to that the enhancing of same composition is compound poly-
The broken feed back of ethene binary wall twisting and pipe.
3. enhancing composite polyethylene binary wall twisting and pipe according to claim 1, it is characterised in that described high-density polyethylene
The melt index of alkene is 0.08-0.14g/10min, and density is 0.941-0.945g/ml.
4. enhancing composite polyethylene binary wall twisting and pipe according to claim 1, it is characterised in that described is polyacrylic molten
It is≤0.20g/10min to melt index.
5. enhancing composite polyethylene binary wall twisting and pipe according to claim 1, it is characterised in that described modifying plastics are helped
Agent is nucleator, one or more of mixtures in sorbitol derivatives class, metal carboxylate nucleator.
6. enhancing composite polyethylene binary wall twisting and pipe according to claim 1, it is characterised in that described antioxidant, institute
The antioxidant stated is composite antioxidant B215.
7. enhancing composite polyethylene binary wall twisting and pipe according to claim 1, it is characterised in that described enhancing filling
The one kind of masterbatch in super-fine active calcium carbide, talcum powder or mica；Described Masterbatch is coloring master batch；Described
Water suction master batch is defoamer；Described lubricant is selected from PE waxes or PP waxes.
8. a kind of preparation method of enhancing composite polyethylene binary wall twisting and pipe as described in claim 1-7 is any, its feature exists
In comprising the following steps：
A, weigh according to the formula dispensing and mix and respectively obtain preparation enhancing composite polyethylene hollow, rectangular pipe and viscous
Connect the compound of adhesive tape；
B, enhancing composite polyethylene hollow, rectangular pipe compound is put on double screw extruder, through mould extrusion and vacuum and cold
But water cooling is shaped, and obtains strengthening composite polyethylene hollow, rectangular pipe；
C, bonding adhesive tape compound is put into adhesive tape extruder and extrudes bonding adhesive tape, the enhancing in step B is combined poly- second
Alkene hollow, rectangular pipe carries out spiral winding on tube forming winding disc, and is bonded simultaneously by bonding adhesive tape, is cooled and shaped and cuts
After cutting, described enhancing composite polyethylene binary wall twisting and pipe is made.
9. the preparation method of enhancing composite polyethylene binary wall twisting and pipe according to claim 8, it is characterised in that described
Double screw extruder is conical double-screw, and extruder temperature is controlled in 180-230 DEG C of interval.
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| CN201710318421.2A CN107254087A (en) | 2017-05-08 | 2017-05-08 | One kind enhancing composite polyethylene binary wall twisting and pipe and preparation method thereof |
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| CN201710318421.2A CN107254087A (en) | 2017-05-08 | 2017-05-08 | One kind enhancing composite polyethylene binary wall twisting and pipe and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027444A (en) * | 2018-07-26 | 2018-12-18 | 徐州辛辛那提新型材料有限公司 | A kind of preparation process of the antistatic modified hollow spiral tube of high rigidity |
| CN109880216A (en) * | 2019-03-11 | 2019-06-14 | 陕西飞天管业科技有限公司 | HDPE double-wall corrugated pipe and its production process |
| CN110229407A (en) * | 2019-06-26 | 2019-09-13 | 南京乐洁新型材料有限公司 | A kind of production technology of anticorrosion hollow spiral tube |
| CN110845794A (en) * | 2019-11-29 | 2020-02-28 | 江西天丰建设集团管业科技有限公司 | Corrugated pipe raw material composition, preparation method thereof and pipe |
| CN114409986A (en) * | 2021-12-28 | 2022-04-29 | 浙江中财型材有限责任公司 | HDPE corrugated pipe and preparation method thereof |
| CN115651314A (en) * | 2022-11-10 | 2023-01-31 | 河南华瑞兴业防水科技有限公司 | A kind of high bonding strength waterproof membrane and its production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109027444A (en) * | 2018-07-26 | 2018-12-18 | 徐州辛辛那提新型材料有限公司 | A kind of preparation process of the antistatic modified hollow spiral tube of high rigidity |
| CN109880216A (en) * | 2019-03-11 | 2019-06-14 | 陕西飞天管业科技有限公司 | HDPE double-wall corrugated pipe and its production process |
| CN109880216B (en) * | 2019-03-11 | 2021-07-20 | 陕西飞天管业科技有限公司 | HDPE double-wall corrugated pipe and its production process |
| CN110229407A (en) * | 2019-06-26 | 2019-09-13 | 南京乐洁新型材料有限公司 | A kind of production technology of anticorrosion hollow spiral tube |
| CN110845794A (en) * | 2019-11-29 | 2020-02-28 | 江西天丰建设集团管业科技有限公司 | Corrugated pipe raw material composition, preparation method thereof and pipe |
| CN114409986A (en) * | 2021-12-28 | 2022-04-29 | 浙江中财型材有限责任公司 | HDPE corrugated pipe and preparation method thereof |
| CN115651314A (en) * | 2022-11-10 | 2023-01-31 | 河南华瑞兴业防水科技有限公司 | A kind of high bonding strength waterproof membrane and its production method |
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