CN107345018A - A kind of LDPE non-porous spiral bellowss of high ring rigidity and preparation method thereof - Google Patents
A kind of LDPE non-porous spiral bellowss of high ring rigidity and preparation method thereof Download PDFInfo
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- CN107345018A CN107345018A CN201610307715.0A CN201610307715A CN107345018A CN 107345018 A CN107345018 A CN 107345018A CN 201610307715 A CN201610307715 A CN 201610307715A CN 107345018 A CN107345018 A CN 107345018A
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- ldpe
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- bellowss
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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
- 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
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to LDPE non-porous spiral bellowss of a kind of high ring rigidity and preparation method thereof, the LDPE non-porous spirals bellows of the high ring rigidity is made up of the raw material of following portions by weight：25 parts of 80 120 parts of LDPE, 58 parts of three salt, 36 parts of barium stearate, 0.5 1.2 parts of azodicarbonamide, 5 parts of ACR2,13 parts of activator, 5 15 parts of nucleator, 24 parts of dispersant, 46 parts of modifying agent and lubricant.Its preparation method is that raw material mixing extruder part extrusion die part is shaped, product warehousing above step is examined in cooling tubing traction cutting.The LDPE non-porous spiral bellowss of the high ring rigidity made of the preparation method, have that low-temperature flexibility, rigidity, ring stiffness and creep resisting ability are preferable when not only, and during long-term use, will not be because of gravity deformation, so as to extend the service life of product, contribute to a wide range of popularization.
Description
Technical field
The present invention relates to LDPE non-porous spiral bellowss of a kind of high ring rigidity and preparation method thereof, belong to plastic tube
Material processing technique field.
Background technology
With the continual and steady rapid growth of Chinese national economy, provided for cities and towns infrastructure construction good grand
See environment and broad space.As China is for the pay attention to day by day of environmental protection, both the central and local governments' political affairs at different levels
A series of water savings, the policies and regulations of pollution treatment environmental protection are put into effect in mansion.Supply water, economize on water, draining and sewage are controlled
For reason by as the emphasis of urban municipal construction from now on, this provides market for the popularization and application of heavy-caliber plastic pipe
Development space.Because structured wall popes can save raw material, cost is reduced, therefore structured wall popes have become greatly
The main product of bore draining blow-off line, but existing structure tube wall is present that ring stiffness is relatively low, weight is bigger than normal,
The defects of impact resistance is poor, creep ratio is big, cost is high.
The content of the invention
It is an object of the invention to：The defects of for prior art, it is proposed that a kind of LDPE of high ring rigidity is non-porous
Helical bellows and preparation method thereof, the LDPE non-porous spiral ripples of the high ring rigidity made of the preparation method
Line pipe, not only when have that low-temperature flexibility, rigidity, ring stiffness and creep resisting ability are preferable, Er Qie
During long-term use, so as to extend the service life of product, it will not contribute to a wide range of because of gravity deformation
Promote.
The technical solution adopted in the present invention is：A kind of LDPE non-porous spiral bellowss of high ring rigidity, the height
The LDPE non-porous spirals bellows of ring stiffness is made up of the raw material of following portions by weight：
In the present invention：A kind of preparation method of the LDPE non-porous spiral bellowss of high ring rigidity, including following step
Suddenly：
The first step, raw material mixing：By LDPE raw materials, barium stearate, activator, dispersant, lubricant etc. other
Auxiliary material is proportionally successively added in dry mixed machine with technique, removes moisture removal, material is through fully dry, mixed
The hopper of extruder is entered after conjunction, wherein dry temperature is less than 80 degree；
Second step, extruder part：Screw rod plastifies pusher to head in machine barrel internal rotation, by LDPE compounds,
So as to reach compacting, melting, be kneaded the purpose for being homogenized and realizing exhaust, be dehydrated；
3rd step, extrusion die part：LDPE through being compacted, melting, be kneaded homogenizing, has subsequent material through screw rod
Push die head to, extrusion die is the critical component of product moulding；
4th step, sizing, cooling：LDPE Vacuum shapings cooler is used for the sizing of section bar, cooling, Vacuum shaping
Vacuum system and water circulation system for sizing and cooling is housed on cooler, stainless steel casing, circulates water ring
Immersion cools down, equipped with movable device and left and right, high high adjustment hand gear on Vacuum shaping cooler；
5th step, tubing traction：Hauling machine be used for it is continuous, automatically will cool down the section bar being hardened and drawn at head
Out, frequency control；
6th step, cutting：After travel switch length control as requested, surface trimming, and the translation frame that is delayed are carried out,
Production line is carried out, cutting machine is completed cutting overall process, cut through using fixed length work switching signal as instruction
Synchronous with section bar operation holding in journey, cutting process is completed by electrical and pneumatic driving, and cutting machine is provided with dust suction
Device, chip caused by cutting is suctioned out and reclaimed in time；
7th step, examine：Product after cutting is put into examine and examines whether product there are substandard products in equipment；
8th step, product warehousing：Qualified product packaging will be examined to be put in storage.
After adopting the above technical scheme, beneficial effects of the present invention are：The high ring rigidity made of the preparation method
LDPE non-porous spiral bellowss, not only when have low-temperature flexibility, rigidity, ring stiffness and creep resisting ability equal
Preferably, and during long-term use, will not because of gravity deformation, so as to extend the service life of product,
Contribute to a wide range of popularization.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
A kind of LDPE non-porous spiral bellowss of high ring rigidity, the LDPE non-porous spiral bellowss of the high ring rigidity
Mixed by weighing following raw materials according to formula proportion：LDPE (average degree of polymerization 700~800), 80kg,
Three salt 5kg, barium stearate 3kg, azodicarbonamide 0.5kg, ACR-401 2kg, activator 1kg,
Nucleator 5kg, dispersant 2kg, modifying agent 4kg and lubricant 2kg.
Embodiment 2
A kind of LDPE non-porous spiral bellowss of high ring rigidity, the LDPE non-porous spiral bellowss of the high ring rigidity
Mixed by weighing following raw materials according to formula proportion：LDPE (average degree of polymerization 700~800),
120kg, three salt 8kg, barium stearate 6kg, azodicarbonamide 1.2kg, ACR-401 5kg, activator
3kg, nucleator 15kg, dispersant 4kg, modifying agent 6kg and lubricant 5kg.
Embodiment 3
A kind of LDPE non-porous spiral bellowss of high ring rigidity, the LDPE non-porous spiral bellowss of the high ring rigidity
Mixed by weighing following raw materials according to formula proportion：LDPE (average degree of polymerization 700~800),
100kg, three salt 7kg, barium stearate 5kg, azodicarbonamide 0.8kg, ACR-401 4kg, activator
2kg, nucleator 8kg, dispersant 3kg, modifying agent 5kg and lubricant 3kg.
In the present invention：A kind of preparation method of the LDPE non-porous spiral bellowss of high ring rigidity, including following step
Suddenly：
The first step, raw material mixing：By LDPE raw materials, barium stearate, activator, dispersant, lubricant etc. other
Auxiliary material is proportionally successively added in dry mixed machine with technique, removes moisture removal, material is through fully dry, mixed
The hopper of extruder is entered after conjunction, wherein dry temperature is less than 80 degree；
Second step, extruder part：Screw rod plastifies pusher to head in machine barrel internal rotation, by LDPE compounds,
So as to reach compacting, melting, be kneaded the purpose for being homogenized and realizing exhaust, be dehydrated；
3rd step, extrusion die part：LDPE through being compacted, melting, be kneaded homogenizing, has subsequent material through screw rod
Push die head to, extrusion die is the critical component of product moulding；
4th step, sizing, cooling：LDPE Vacuum shapings cooler is used for the sizing of section bar, cooling, Vacuum shaping
Vacuum system and water circulation system for sizing and cooling is housed on cooler, stainless steel casing, circulates water ring
Immersion cools down, equipped with movable device and left and right, high high adjustment hand gear on Vacuum shaping cooler；
5th step, tubing traction：Hauling machine be used for it is continuous, automatically will cool down the section bar being hardened and drawn at head
Out, frequency control；
6th step, cutting：After travel switch length control as requested, surface trimming, and the translation frame that is delayed are carried out,
Production line is carried out, cutting machine is completed cutting overall process, cut through using fixed length work switching signal as instruction
Synchronous with section bar operation holding in journey, cutting process is completed by electrical and pneumatic driving, and cutting machine is provided with dust suction
Device, chip caused by cutting is suctioned out and reclaimed in time；
7th step, examine：Product after cutting is put into examine and examines whether product there are substandard products in equipment；
8th step, product warehousing：Qualified product packaging will be examined to be put in storage.
For a person skilled in the art, any equal modification and replacement to the technical program is all in this hair
Among bright scope.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and modification,
It should all cover in the scope of the present invention.
Claims (2)
- A kind of 1. LDPE non-porous spiral bellowss of high ring rigidity, it is characterised in that：The LDPE of the high ring rigidity Non-porous spiral bellows is made up of the raw material of following portions by weight：
- A kind of 2. preparation method of the LDPE non-porous spiral bellowss of high ring rigidity, it is characterised in that：Including following step Suddenly：The first step, raw material mixing：By LDPE raw materials, barium stearate, activator, dispersant, lubricant etc. other Auxiliary material is proportionally successively added in dry mixed machine with technique, removes moisture removal, material is through fully dry, mixed The hopper of extruder is entered after conjunction, wherein dry temperature is less than 80 degree；Second step, extruder part：Screw rod plastifies pusher to head in machine barrel internal rotation, by LDPE compounds, So as to reach compacting, melting, be kneaded the purpose for being homogenized and realizing exhaust, be dehydrated；3rd step, extrusion die part：LDPE through being compacted, melting, be kneaded homogenizing, has subsequent material through screw rod Push die head to, extrusion die is the critical component of product moulding；4th step, sizing, cooling：LDPE Vacuum shapings cooler is used for the sizing of section bar, cooling, Vacuum shaping Vacuum system and water circulation system for sizing and cooling is housed on cooler, stainless steel casing, circulates water ring Immersion cools down, equipped with movable device and left and right, high high adjustment hand gear on Vacuum shaping cooler；5th step, tubing traction：Hauling machine be used for it is continuous, automatically will cool down the section bar being hardened and drawn at head Out, frequency control；6th step, cutting：After travel switch length control as requested, surface trimming, and the translation frame that is delayed are carried out, Production line is carried out, cutting machine is completed cutting overall process, cut through using fixed length work switching signal as instruction Synchronous with section bar operation holding in journey, cutting process is completed by electrical and pneumatic driving, and cutting machine is provided with dust suction Device, chip caused by cutting is suctioned out and reclaimed in time；7th step, examine：Product after cutting is put into examine and examines whether product there are substandard products in equipment；8th step, product warehousing：Qualified product packaging will be examined to be put in storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307715.0A CN107345018A (en) | 2016-05-06 | 2016-05-06 | A kind of LDPE non-porous spiral bellowss of high ring rigidity and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610307715.0A CN107345018A (en) | 2016-05-06 | 2016-05-06 | A kind of LDPE non-porous spiral bellowss of high ring rigidity and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107345018A true CN107345018A (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610307715.0A Pending CN107345018A (en) | 2016-05-06 | 2016-05-06 | A kind of LDPE non-porous spiral bellowss of high ring rigidity and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107345018A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104945777A (en) * | 2015-07-06 | 2015-09-30 | 江苏圣通环境工程有限公司 | Skinning low-foamed rigid PVC pipe and manufacturing technology thereof |
-
2016
- 2016-05-06 CN CN201610307715.0A patent/CN107345018A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104945777A (en) * | 2015-07-06 | 2015-09-30 | 江苏圣通环境工程有限公司 | Skinning low-foamed rigid PVC pipe and manufacturing technology thereof |
Non-Patent Citations (1)
| Title |
|---|
| 于红军等编著: "《建筑用塑料制品与加工》", 28 February 2003, 科学技术文献出版社 * |
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Application publication date: 20171114 |