CN105199210B - A kind of polyethylene modified material preparation method for honeycomb constrained system - Google Patents
A kind of polyethylene modified material preparation method for honeycomb constrained system Download PDFInfo
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- CN105199210B CN105199210B CN201510766714.8A CN201510766714A CN105199210B CN 105199210 B CN105199210 B CN 105199210B CN 201510766714 A CN201510766714 A CN 201510766714A CN 105199210 B CN105199210 B CN 105199210B
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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
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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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
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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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Abstract
A kind of polyethylene modified material preparation method for honeycomb constrained system, it is related to a kind of preparation method of polyethylene modified material.The invention aims to solve existing vinyon to produce after thermal oxide and light aging, cause the problem of elongation reduction, fragility increase.Preparation method：First, component A is prepared by raw material of HDPE resin, low temperature plasticized modifier, antioxidant, cross-linked modifier and lubricant；2nd, B component is prepared by raw material of LLDPE resins, initiator, crosslinking agent and crosslinking catalyst；3rd, using component A, B component, lubricant B and surfactant as raw material, carry out banburying and extrude the polyethylene modified material obtained for honeycomb constrained system.Present invention is mainly used for the polyethylene modified material for being prepared in honeycomb constrained system.
Description
Technical field
The present invention relates to a kind of preparation method of polyethylene modified material.
Background technology
As material technology, properties of product, function innovation engineering method are continued to develop, one kind utilizes PE modified material
The technology of material production honeycomb constrained system product has been applied in ecological revetment field, and original it is intrinsic excellent retaining for this technology
While gesture, opening for the transformation of long life, civil nature and engineering, particularly subversiveness Polymer composite alloy has been realized
Hair, on the basis of long-term use is met, produces honeycomb constrained system product using material of the present invention, not only prevents soil body material
Naturally, the unstable hazard factors that cause such as stream is lost, landslide, and be a kind of stable soil, carrying bank protection, rivers and canals protect, with
And the most effectively solution such as vegetation retaining wall.
The carrier material used in the market, is to use to have cement, sandy soil, stone material, reinforcing bar with traditional synthesis mode
Deng the material being made for raw material, this kind of materials application in water conservancy, harbour, highway, railway, ecological revetment, cultural tour landscape,
State boundary and sea island ecosystem protection etc. field, by wind and weather, the quick-fried Sai of chronic sun, the alternating of the cold and hot temperature difference, particularly
The frequent outburst of the geological disasters such as China some areas landslide, landslide, mud-rock flow, many disaster-stricken mountain area side slopes are exposed, together
When due to flood erosion for many years, cause a variety of destructions such as riverbank, farmland, ground, vegetation, plant, landforms, such as surface collapse, water
Native loss, river channel shrinkage, flood discharge capacity wretched insufficiency etc., serious threat is constituted to the flood control safety of location, small towns.
And material connection portion uses bar construction, by the unbalanced erosion of soil acid-base under long-time is buried, steel is easily caused
Muscle corrosion fractures, and whenever this geological disaster often occurs for rainy season basin area, is brought about great losses to people's property, although state
Family, which spends huge sums, has built slope protection works, but these engineerings are often washed away by flood, is brought by vibrations landslide, the property to the people
The destruction of larger potential safety hazard and environmental ecology, while also resulting in immeasurable loss.Although many manufacturers
In order to preferably substitute this material using other materials, and this product is substituted using polyvinyl resin production material, still
The performance and effect shown can not be very satisfied, particularly in pull resistance, corrosion-resistant and aging, yield strength, impact
Do not reach satisfied effect with the index such as anti-shear performance, thus limit it and use scope, thus it is poly- further to expand
Ethene therefore is badly in need of a kind of novel polyethylene modified product that can solve the problem that drawbacks described above and gone out in the application field of various industries
It is existing.
Vinyon is nontoxic, tasteless, odorless, and its molecular structure is characterized with its linear backbone, with intensity height, toughness
Good, rigid strong, heat-resisting, cold-resistant the advantages of, also with performances such as good resisting environmental stress and cracking, tear-resistant intensity, and it is resistant to
Acid, alkali, organic solvent etc., but polyethylene performance is because micro miscellaneous contained by the increase of side chain, molecular structure and in polymer
The internal causes such as matter, and influenceed by the external cause such as atmospheric environment and processing and forming condition, hot oxygen and light aging, elongation drop can be produced
The problems such as low, fragility increase, these problems are that oxygen is acted in irradiation and air by daylight middle-ultraviolet lamp, are made in its molecule
Carbonyl content increases and occurs photooxidation resistance effect, and this photooxidation resistance, which acts on it, can make polyethylene molecule depolymerization, and generate one
Part side chain three-dimensional-structure, as a result causes polyethylene to occur degradation reaction, and makes its performance depreciation or even lose completely to use valency
Value.
The content of the invention
The invention aims to solve existing vinyon to produce after thermal oxide and light aging, elongation is caused to drop
The problem of low, fragility increase, and a kind of polyethylene modified material preparation method for honeycomb constrained system is provided.
A kind of polyethylene modified material preparation method for honeycomb constrained system, is specifically realized by the following steps：
First, component A is prepared：By 20~70 parts of HDPE resins, 6~10 parts of low temperature plasticized modifiers, 0.2~0.4 part of antioxygen
Agent, 0.9~1.3 part of cross-linked modifier and 1~3 part of mix lubricant are uniform, obtain mixture A, mixture A is transferred into mixing
Kneaded in machine, melting temperature is 140~180 DEG C, and mixing time 5min~20min obtains component A；
2nd, B component is prepared：By 8~15 parts of LLDPE resins, 0.1~0.15 part of initiator, 0.1~0.15 part of crosslinking agent and
0.2~0.4 part of crosslinking catalyst, after weighing put into mixer in, rotating speed be 30r/min~40r/min under mixing 5min~
10min, obtains mixture B, and mixture B is put into the serial double screw extruders of SHJ, the fortune of SHJ series double screw extruders
Row parameter is as follows：One area's temperature is 150 DEG C, and two area's temperature are 160 DEG C, and three area's temperature are 165 DEG C, and four area's temperature are 170 DEG C, five
Area's temperature is 180 DEG C, and six area's temperature are 190 DEG C, and die head temperature is 180~190 DEG C, and screw speed is 30r/min, the material of extrusion
Bar is dried after being cooled down through tank, and B component is obtained after pelletizing；
3rd, banburying is extruded：Component A, B component, lubricant B and surfactant are sequentially added in batch mixer, blended
5min~10min, is then transferred in high mixer, is 50~60 DEG C in temperature and rotating speed is mixing under 30r/min~40r/min
5min~10min, obtains mixture C, and system is extruded, stretched and cooled down to mixture C successively by parallel double-screw extruder
Grain obtains the polyethylene modified material for honeycomb constrained system；Described parallel double-screw extruder is in extrusion from material
Mouthful it is respectively to the technological temperature at mouth mold：1 area's temperature is 160~165 DEG C, and 2 area's temperature are 165~170 DEG C, and 3 area's temperature are
175~180 DEG C, 4 area's temperature are 180~185 DEG C, and 5 area's temperature are 185~190 DEG C, and 6 area's temperature are 195~205 DEG C, melt pressure
Power is 2MPa~10MPa；The mass ratio of component A and B component described in step 3 is 75:25；Component A described in step 3
Mass ratio with lubricant B is 75:(1~3)；The mass ratio of component A and surfactant described in step 3 is 75:(5~
10)。
Advantage of the present invention：
What the first, the present invention was provided will be interlinked in linear molecule between high polymer long chain by key key, make macromolecule
Linear structure becomes network structure come a kind of process implementing side for the chemical modification for changing or improving original high molecular polymer
Method, its crucial point is the technique for having focused on batch mixing on the basis of the modification of original PE resin crosslinks, by melt-blending process,
Using ethene trimethoxy silane as crosslinking agent, using cumyl peroxide as initiator, using trimethylolpropane as surface-active
Agent, using iso-cyanuric acid triallyl ester as cross-linked modifier, using polyethylene thermoplastic elastomer as low temperature plasticized modifier, is prepared
Cross-linked graft modified polyethylene material, the i.e. polyethylene modified material for honeycomb constrained system, to promote to adjust polymer
Molecule interchain covalent bonds or ionic bond are formed, so that multiple linear molecules, which are mutually bonded, is cross-linked into network structure, are effectively protected
The elasticity and intensity of material are demonstrate,proved.
2nd, unmodified vinyon lacks ductility, by changing due to the irregular poor high temperature stability of molecular structure
Property principle is by the stress concentration of dispersed particle and triggers the resin of particle periphery to produce crazing and shear band to act on, absorb a large amount of
Energy simultaneously, rigid particles prevent again crackle extension be passivated and terminate crackle, reach the purpose of toughness reinforcing.Therefore the present invention makes
The standby polyethylene modified material impact strength for honeycomb constrained system improves 80%, and tensile strength improves 62%, changes
Load performance has been apt to it, has born more than 10 times of circulating load, has reduced negative stress more than 30%, yield strength reaches that 23.2MPa is
A kind of structural material of excellent honeycomb constrained system slope protection net.
3rd, polyvinyl resin is a cyclic process in modified production, i.e., during one circulates, melt flows speed
Rate and direction are in a mixing section, it may occur that be varied multiple times, and thereby promoting scattered purpose, the mixing of different component
Journey, is exactly the diffusion process of a molecule, actually the mutual diffusion process of strand, is restricted by between strand, molecule
The size of intermolecular forces, can all form asymmetric flowing, the different raw material of two kinds of mobility, in the middle flowing difference of batch mixing,
The quality of product and the difference of performance indications are directly influenced, causes the hydraulic performance decline of product, therefore the present invention is changed by crosslinking
Property, promoter material is surface-treated, the chemical group of material is formed firm chemical bond, will be single by reaction principle
Item System forming heterogeneous system, material of different nature is firmly combined, and improves dispersiveness and rheological property, improves anti-
Intensity is rushed, material fragility is reduced, from rigid material to toughness material is produced, improves the impact resistance of material.
4th, PE resins are in saturated hydrocarbon chain, the property that without functional group, another is increased by short-chain branch, density reduction is influenceed
It can be creep resistance or bear the ability of loading.This performance is equally important in the use of polymer.As long as density is slightly
Slightly decline a bit, creep resistance is just very significantly improved improvement.Prepared by the present invention is used for the PE modified of honeycomb constrained system
Material increases the short-chain branch of ethene, and what is reduced the density of ethene and benefit maximum is exactly to improve ESCR performances and creep resistance.
The major function of chemical crosslinking, which is that peroxide is heated, is decomposed into chemical property very high free radical, and polymerization is gone these free radicals more
Hydrogen atom in thing molecule, makes main polymer chain be changed into reactive radical species, and two kinds of macromolecular chain free radicals be combined with each other and can produced
Raw crosslinking, the free radical that the polyolefin of generation is big is combined and forms C-C keys, and alkoxysilane moiety is embedded into polyolefin structure
In, so as to hydrolyze and be condensed in the presence of a catalyst, the polyolefin of functional group can be formed by siloxanes key (Si-O-Si)
Tridimensional network, forms stable molecular structure, improves resistance to ag(e)ing, limit the degraded of material.
Embodiment
Embodiment one：Present embodiment is a kind of polyethylene modified material preparation side for honeycomb constrained system
Method, is specifically realized by the following steps：
First, component A is prepared：By 20~70 parts of HDPE resins, 6~10 parts of low temperature plasticized modifiers, 0.2~0.4 part of antioxygen
Agent, 0.9~1.3 part of cross-linked modifier and 1~3 part of mix lubricant are uniform, obtain mixture A, mixture A is transferred into mixing
Kneaded in machine, melting temperature is 140~180 DEG C, and mixing time 5min~20min obtains component A；
2nd, B component is prepared：By 8~15 parts of LLDPE resins, 0.1~0.15 part of initiator, 0.1~0.15 part of crosslinking agent and
0.2~0.4 part of crosslinking catalyst, after weighing put into mixer in, rotating speed be 30r/min~40r/min under mixing 5min~
10min, obtains mixture B, and mixture B is put into the serial double screw extruders of SHJ, the fortune of SHJ series double screw extruders
Row parameter is as follows：One area's temperature is 150 DEG C, and two area's temperature are 160 DEG C, and three area's temperature are 165 DEG C, and four area's temperature are 170 DEG C, five
Area's temperature is 180 DEG C, and six area's temperature are 190 DEG C, and die head temperature is 180~190 DEG C, and screw speed is 30r/min, the material of extrusion
Bar is dried after being cooled down through tank, and B component is obtained after pelletizing；
3rd, banburying is extruded：Component A, B component, lubricant B and surfactant are sequentially added in batch mixer, blended
5min~10min, is then transferred in high mixer, is 50~60 DEG C in temperature and rotating speed is mixing under 30r/min~40r/min
5min~10min, obtains mixture C, and system is extruded, stretched and cooled down to mixture C successively by parallel double-screw extruder
Grain obtains the polyethylene modified material for honeycomb constrained system；Described parallel double-screw extruder is in extrusion from material
Mouthful it is respectively to the technological temperature at mouth mold：1 area's temperature is 160~165 DEG C, and 2 area's temperature are 165~170 DEG C, and 3 area's temperature are
175~180 DEG C, 4 area's temperature are 180~185 DEG C, and 5 area's temperature are 185~190 DEG C, and 6 area's temperature are 195~205 DEG C, melt pressure
Power is 2MPa~10MPa；The mass ratio of component A and B component described in step 3 is 75:25；Component A described in step 3
Mass ratio with lubricant B is 75:(1~3)；The mass ratio of component A and surfactant described in step 3 is 75:(5~
10)。
Present embodiment principle：By using the modified technique manufacture method of graft crosslinking, macromolecular elastomer is added
It is allowed to after being kneaded with resin, in the base material that the resin that is modified is evenly distributed in netted form, heterogeneous system is constituted with it, when
During impulsive force (impact, vibrations) effect, it can be allowed to weaken by the particle or netted damping action of these elastomers, so as to carry
The impact strength of high product, adds the low temperature increasing tougheness and ageing-resistant degradability of product.The key of the present invention is by one
Fixed chemical modification principle, two-dimensional structure material is changed into the process of three-dimensional structure material, using centralised or decentralised negative
Under load effect, three-dimensional honeycomb structure product is produced with polyethylene modified material, to reach ductility, resistance to ag(e)ing, control current
Shearing, laterally and longitudinally move the characteristics of resist gravity, waterpower and buoyancy there is provided additional stability, it is ensured that the product of production
The stability of structural material, reaches locking upper soll layer anti-soil body landslide and fluid erosion prevention purpose.
The high intensity having for the polyethylene modified material of honeycomb constrained system prepared by present embodiment, low water suction,
Corrosion resistant feature, from the production honeycomb constrained system that improved polyalkene is raw material based on raw material, fiber, elastomer etc.
It is material modified, be a kind of polymer broadband through ultrasonic wave using the product of the honeycomb constrained system of this material modified production
The cellular three-dimensional netted thing being welded, such a material has suitable various weak soils, cold and heat is without hindrance, can improve loading
Energy, nonwatertight moisture keeping, reduce runoff, from into draining pressure reduction structure, adapting to continue or batch (-type) current, thus it is possible to vary the geometry of rivers and canals
Shape, regulation and control current, absorption current and surge impact power in the form of flexible structure, self-restraint water and soil reduces tropical island effect, such a
Material system can bear more than 10 times circulating loads, and soil tensile strength can be made up more than 30%ing by reducing bearing strength test,
Increase the shear strength of soil, more adapt to the miniature deformation on basis, solve a variety of disadvantages for being embedded in underground for a long time and occurring
Disease, has reached locking upper soll layer fluid erosion prevention purpose, is the fourth-largest new material i.e. after timber, steel, concrete.
What present embodiment was provided will be interlinked in linear molecule between high polymer long chain by key key, make macromolecule
Linear structure becomes network structure come a kind of process implementing side for the chemical modification for changing or improving original high molecular polymer
Method, its crucial point is the technique for having focused on batch mixing on the basis of the modification of original PE resin crosslinks, by melt-blending process,
Using ethene trimethoxy silane as crosslinking agent, using cumyl peroxide as initiator, using trimethylolpropane as surface-active
Agent, using iso-cyanuric acid triallyl ester as cross-linked modifier, using polyethylene thermoplastic elastomer as low temperature plasticized modifier, is prepared
Cross-linked graft modified polyethylene material, the i.e. polyethylene modified material for honeycomb constrained system, to promote to adjust polymer
Molecule interchain covalent bonds or ionic bond are formed, so that multiple linear molecules, which are mutually bonded, is cross-linked into network structure, are effectively protected
The elasticity and intensity of material are demonstrate,proved.
Unmodified vinyon is lacked ductility, is passed through modification due to the irregular poor high temperature stability of molecular structure
Principle is by the stress concentration of dispersed particle and triggers the resin of particle periphery to produce crazing and shear band to act on, absorb substantial amounts of
Simultaneously, rigid particles prevent the extension of crackle from being passivated and terminate crackle to energy again, reach the purpose of toughness reinforcing.Therefore present embodiment
The polyethylene modified material impact strength for honeycomb constrained system prepared improves 80%, and tensile strength improves 62%,
Load performance is improved, more than 10 times of circulating load is born, negative stress is reduced more than 30%, yield strength reaches 23.2MPa
It is a kind of structural material of excellent honeycomb constrained system slope protection net.
Polyvinyl resin is a cyclic process in modified production, i.e., during one circulates, melt flow rate (MFR)
With direction in a mixing section, it may occur that be varied multiple times, thereby promoting scattered purpose, the mixing of different component
Journey, is exactly the diffusion process of a molecule, actually the mutual diffusion process of strand, is restricted by between strand, molecule
The size of intermolecular forces, can all form asymmetric flowing, the different raw material of two kinds of mobility, in the middle flowing difference of batch mixing,
The quality of product and the difference of performance indications are directly influenced, causes the hydraulic performance decline of product, therefore present embodiment is by handing over
Connection is modified, and promoter material is surface-treated, the chemical group of material is formed firm chemical bond, by reaction principle,
By individual event System forming heterogeneous system, material of different nature is firmly combined, improves dispersiveness and rheological property, carries
High impact strength, reduces material fragility, from rigid material to toughness material is produced, improves the impact resistance of material.
PE resins are in saturated hydrocarbon chain, and without functional group, the performance that another is increased by short-chain branch, density reduction is influenceed is
Creep resistance or the ability for bearing loading.This performance is equally important in the use of polymer.As long as density slightly under
A bit, creep resistance is just very significantly improved improvement to drop.Prepared by present embodiment is used for the PE modified of honeycomb constrained system
Material increases the short-chain branch of ethene, and what is reduced the density of ethene and benefit maximum is exactly to improve ESCR performances and creep resistance.
The major function of chemical crosslinking, which is that peroxide is heated, is decomposed into chemical property very high free radical, and polymerization is gone these free radicals more
Hydrogen atom in thing molecule, makes main polymer chain be changed into reactive radical species, and two kinds of macromolecular chain free radicals be combined with each other and can produced
Raw crosslinking, the free radical that the polyolefin of generation is big is combined and forms C-C keys, and alkoxysilane moiety is embedded into polyolefin structure
In, so as to hydrolyze and be condensed in the presence of a catalyst, the polyolefin of functional group can be formed by siloxanes key (Si-O-Si)
Tridimensional network, forms stable molecular structure, improves resistance to ag(e)ing, limit the degraded of material.
Embodiment two：The difference of present embodiment and embodiment one is：By 60~70 in step one
Part HDPE resin, 9~10 parts of low temperature plasticized modifiers, 0.2~0.3 part of antioxidant, 0.9~1.3 part of cross-linked modifier and 1~3
Part lubricant A is well mixed, and obtains mixture A.Other are identical with embodiment one.
Embodiment three：One of present embodiment and embodiment one or two difference is：Institute in step one
The HDPE resin stated is that fluid flow rate is 7.98g/10min-1High density polyethylene (HDPE).Other with embodiment one or
Two is identical.
Embodiment four：One of present embodiment and embodiment one to three difference is：Institute in step one
The cross-linked modifier stated is iso-cyanuric acid triallyl ester.Other are identical with embodiment one to three.
Embodiment five：One of present embodiment and embodiment one to four difference is：Institute in step one
The described antioxidant stated is the mixture of antioxidant 1010, irgasfos 168 or antioxidant 1010 and irgasfos 168.Other with
Embodiment one to four is identical.
Embodiment six：One of present embodiment and embodiment one to five difference is：Institute in step one
The lubricant A stated is ethylene bis stearic acid amide.Other are identical with embodiment one to five.
Embodiment seven：One of present embodiment and embodiment one to six difference is：Institute in step one
The low temperature plasticized modifier stated is polyethylene thermoplastic elastomer.Other are identical with embodiment one to six.
Embodiment eight：One of present embodiment and embodiment one to seven difference is：Pressed in step 2
10~15 parts of LLDPE resins, 0.15 part of initiator, 0.15 part of crosslinking agent and 0.2~0.3 part of crosslinking catalyst put into mixed after weighing
In conjunction machine, it is 30r/min~35r/min mixing 5min~10min in rotating speed, obtains mixture B.Other and embodiment
One to seven is identical.
Embodiment nine：One of present embodiment and embodiment one to eight difference is：Institute in step 2
The LLDPE resins stated are that fluid flow rate is 0.16g/10min-1LLDPE.Other and specific embodiment party
Formula one to eight is identical.
Embodiment ten：One of present embodiment and embodiment one to nine difference is：Institute in step 2
The crosslinking catalyst stated is di-n-butyltin dilaurate.Other are identical with embodiment one to nine.
Embodiment 11：One of present embodiment and embodiment one to ten difference is：In step 2
Described crosslinking agent is ethene trimethoxy silane.Other are identical with embodiment one to ten.；
Embodiment 12：Present embodiment is with the difference of embodiment one to one of 11：Step 2
Described in initiator be cumyl peroxide.Other are identical with embodiment one to 11.
Embodiment 13：Present embodiment is with the difference of embodiment one to one of 12：Step 3
Described in surfactant be trimethylolpropane.Other are identical with embodiment one to 12.
Embodiment 14：Present embodiment is with the difference of embodiment one to one of 13：Step 3
Described in lubricant B be ethylene bis stearic acid amide.Other are identical with embodiment one to 13.
Present invention is not limited only to the content of the respective embodiments described above, the group of one of them or several embodiments
Contract sample can also realize the purpose of invention.
Using following verification experimental verifications effect of the present invention
Embodiment 1：A kind of polyethylene modified material preparation method for honeycomb constrained system, is specifically according to the following steps
Complete：
First, component A is prepared：By 60 parts of high density polyethylene (HDPE)s, 10 parts of polyethylene thermoplastic elastomers, 0.2 part of antioxidant 1010
Mixture, 1.3 parts of iso-cyanuric acid triallyl esters and 3 parts of ethylene bis stearic acid amides with irgasfos 168 are well mixed, and are obtained
To mixture A, mixture A is transferred in mixer and kneaded, melting temperature is 160 DEG C, and mixing time 15min obtains A groups
Point；Described antioxidant 1010 and the mixture of irgasfos 168 are 1 by volume by antioxidant 1010 and irgasfos 168:1 mixes
Conjunction is formed；The fluid flow rate of the high density polyethylene (HDPE) is 7.98g/10min-1；
2nd, B component is prepared：By 15 parts of LLDPEs, 0.15 part of cumyl peroxide, 0.15 part of ethene three
Methoxy silane and 0.2 part of di-n-butyltin dilaurate, put into mixer after weighing, are mixed in the case where rotating speed is 35r/min
10min, obtains mixture B, and mixture B is put into the serial double screw extruders of SHJ, the fortune of SHJ series double screw extruders
Row parameter is as follows：One area's temperature is 150 DEG C, and two area's temperature are 160 DEG C, and three area's temperature are 165 DEG C, and four area's temperature are 170 DEG C, five
Area's temperature is 180 DEG C, and six area's temperature are 190 DEG C, and die head temperature is 180~190 DEG C, and screw speed is 30r/min, the material of extrusion
Bar is dried after being cooled down through tank, and B component is obtained after pelletizing；The fluid flow rate of the LLDPE is 0.16g/
10min-1；
3rd, banburying is extruded：Component A, B component, ethylene bis stearic acid amide and trimethylolpropane are sequentially added into batch mixing
In machine, 10min is blended, is then transferred in high mixer, be 55 DEG C in temperature and rotating speed is to mix 10min under 40r/min, obtain
Mixture C, mixture C extruded successively by parallel double-screw extruder, stretch and cooling pelletization obtains being used for honeycomb about
The polyethylene modified material of beam system；Described parallel double-screw extruder in extrusion from material mouth to mouth mold at technique
Temperature is respectively：1 area's temperature is 160~165 DEG C, and 2 area's temperature are 165~170 DEG C, and 3 area's temperature are 175~180 DEG C, 4 area's temperature
Spend for 180~185 DEG C, 5 area's temperature are 185~190 DEG C, and 6 area's temperature are 195~205 DEG C, and melt pressure is 10MPa；Step 3
Described in component A and B component mass ratio be 75:25；The matter of component A and ethylene bis stearic acid amide described in step 3
Amount is than being 75:2；The mass ratio of component A and trimethylolpropane described in step 3 is 75:10.
Detect being moulded for the polyethylene modified material of honeycomb constrained system, the polyethylene of grand celebration production for the preparation of embodiment 1
The correlated performance of the vinyon of material, the vinyon of Shanghai production and South Korea's production, as shown in table 1, can by contrast
Know that the polyethylene modified material properties for honeycomb constrained system prepared by the present invention are up to standard, and be superior to existing material of the same race
Material.
Table 1
Claims (3)
1. a kind of polyethylene modified material preparation method for honeycomb constrained system, it is characterised in that for honeycomb constrained system
Polyethylene modified material preparation method complete according to the following steps：
First, component A is prepared：By 20~70 parts of HDPE resins, 6~10 parts of low temperature plasticized modifiers, 0.2~0.4 part of antioxidant,
0.9~1.3 part of cross-linked modifier and 1~3 part of lubricant A are well mixed, and obtain mixture A, mixture A is transferred into mixer
Middle mixing, melting temperature is 140~180 DEG C, and mixing time 5min~20min obtains component A；
HDPE resin described in step one is the high density polyethylene (HDPE) that fluid flow rate is 7.98g/10min；
Cross-linked modifier described in step one is iso-cyanuric acid triallyl ester；
Antioxidant described in step one is the mixing of antioxidant 1010, irgasfos 168 or antioxidant 1010 and irgasfos 168
Thing；
Lubricant A described in step one is ethylene bis stearic acid amide；
Low temperature plasticized modifier described in step one is polyethylene thermoplastic elastomer；
2nd, B component is prepared：By 8~15 parts of LLDPE resins, 0.1~0.15 part of initiator, 0.1~0.15 part of crosslinking agent and 0.2
~0.4 part of crosslinking catalyst, after weighing put into mixer in, rotating speed be 30r/min~40r/min under mixing 5min~
10min, obtains mixture B, and mixture B is put into the serial double screw extruders of SHJ, the fortune of SHJ series double screw extruders
Row parameter is as follows：One area's temperature is 150 DEG C, and two area's temperature are 160 DEG C, and three area's temperature are 165 DEG C, and four area's temperature are 170 DEG C, five
Area's temperature is 180 DEG C, and six area's temperature are 190 DEG C, and die head temperature is 180~190 DEG C, and screw speed is 30r/min, the material of extrusion
Bar is dried after being cooled down through tank, and B component is obtained after pelletizing；
LLDPE resins described in step 2 are the LLDPE that fluid flow rate is 0.16g/10min；
Crosslinking catalyst described in step 2 is di-n-butyltin dilaurate；
Crosslinking agent described in step 2 is ethene trimethoxy silane；
Initiator described in step 2 is cumyl peroxide；
3rd, banburying is extruded：Component A, B component, lubricant B and surfactant are sequentially added in batch mixer, blending 5min~
10min, is then transferred in high mixer, temperature be 50~60 DEG C and rotating speed be mixing 5min under 30r/min~40r/min~
10min, obtains mixture C, and mixture C extruded successively by parallel double-screw extruder, stretch and cooling pelletization is obtained
Polyethylene modified material for honeycomb constrained system；Described parallel double-screw extruder is in extrusion from material mouth to mouth
Technological temperature at mould is respectively：1 area's temperature be 160~165 DEG C, 2 area's temperature be 165~170 DEG C, 3 area's temperature be 175~
180 DEG C, 4 area's temperature are 180~185 DEG C, and 5 area's temperature are 185~190 DEG C, and 6 area's temperature are 195~205 DEG C, and melt pressure is
2MPa~10MPa；The mass ratio of component A and B component described in step 3 is 75:25；Component A and profit described in step 3
Lubrication prescription B mass ratio is 75:(1~3)；The mass ratio of component A and surfactant described in step 3 is 75:(5~10)；
Surfactant described in step 3 is trimethylolpropane；
Lubricant B described in step 3 is ethylene bis stearic acid amide.
2. a kind of polyethylene modified material preparation method for honeycomb constrained system according to claim 1, its feature
Be in step one by 60~70 parts of HDPE resins, 9~10 parts of low temperature plasticized modifiers, 0.2~0.3 part of antioxidant, 0.9~
1.3 parts of cross-linked modifiers and 1~3 part of lubricant A are well mixed, and obtain mixture A.
3. a kind of polyethylene modified material preparation method for honeycomb constrained system according to claim 1, its feature
It is in step 2 by 10~15 parts of LLDPE resins, 0.15 part of initiator, 0.15 part of crosslinking agent and 0.2~0.3 part of cross-linking catalyst
After agent is weighed in input mixer, it is 30r/min~35r/min mixing 5min~10min in rotating speed, obtains mixture B.
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