CN107177117A - A kind of expandability polyolefin, particle of polystyrene blend and preparation method thereof - Google Patents
A kind of expandability polyolefin, particle of polystyrene blend and preparation method thereof Download PDFInfo
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- CN107177117A CN107177117A CN201710561535.XA CN201710561535A CN107177117A CN 107177117 A CN107177117 A CN 107177117A CN 201710561535 A CN201710561535 A CN 201710561535A CN 107177117 A CN107177117 A CN 107177117A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
- C08J2203/182—Binary blends of expanding agents of physical blowing agents, e.g. acetone and butane
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- C—CHEMISTRY; METALLURGY
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- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C08L2203/14—Applications used for foams
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- 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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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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Abstract
The invention provides a kind of expandability polyolefin, the particle of polystyrene blend and preparation method thereof, wherein, expandability polyolefin, the particle of polystyrene blend include each component of following parts by weight：30~90 parts of styrenic polymer resins, 10~60 parts of ldpe resin, the parts by weight of polyolefin elastomer 2~20,0~15 part of phase solubilizer, 0~3 part of initiator, 0~10 part of reaction monomers, 0.5~5 part of nucleator, 5~20 parts of foaming agent.Expandability polyolefin of the present invention, the particle of polystyrene blend, various mechanographs can be prepared through thermoforming or gum forming, product has high compression-strength, high-energy absorption, high intensity and excellent toughness, impact resistance, resist bending and heat-insulating property；Without plasticizer and VOC, it can be used as buffering device, packaging material, automotive upholstery and insulation material etc..
Description
Technical field
The invention belongs to foam material field, more particularly, to a kind of expandability polyolefin, the grain of polystyrene blend
Son and preparation method thereof.
Background technology
The foamed material of polyolefin/polystyrene blends has that lightweight, intensity is high, good toughness, and impact resistance is good
In terms of advantage, be just widely used in the high-end fields such as electronic device, optics as packaging material, with higher city
Field prospect.It is related to foam particle of polyolefin/styrene polymer mixtures and preparation method thereof main equal in following patent
Have involved, such as 200580027165.7,200780006752.7,200480003270.2,200980153544.9 and
200980153542.X.Preparation method mainly has two kinds, and the Japan factory using JSP, KANEKA as representative is in a kettle. will
Styrene monomer is prepared into polyethylene/polystyrene blends master batch with polyolefin by way of chemical synthesis, then in kettle
Foaming agent is soaked, expandability particle is formed；And the BASF of Germany is mainly by this three originals of polyolefin, polystyrene and bulking agent
Material puts into extruder mixing, and section adds foaming agent in an extruder, after being well mixed, and extruding pelletization, preparation contains foaming agent
Expandability particle.Foamed after the particle input prefoaming machine of these expandabilities to proper density, add the standby bubble of shaping mechanism
Foam product；Chinese invention patent discloses the A of CN 106280046 and discloses a kind of production method of prefoam EPO beads, the patent
The properties of product of production are poor, and grafting rate is relatively low.
The content of the invention
In view of this, the present invention is directed to propose a kind of expandability polyolefin, the particle of polystyrene blend, make it have
High compression-strength, high-energy absorption, high intensity and excellent toughness, impact resistance, resist bending and heat-insulating property.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of expandability polyolefin, the particle of polystyrene blend, include each component of following parts by weight：Styrene gathers
30~90 parts of polymer resin, 10~60 parts of ldpe resin, the parts by weight of polyolefin elastomer 2~20, phase solubilizer 0~
15 parts, 0~3 part of initiator, 0~10 part of reaction monomers, 0.5~5 part of nucleator, 5~20 parts of foaming agent.
Above-mentioned expandability polyolefin, the particle of polystyrene blend, are not limited to composition described above, can also add other into
Divide to obtain the more preferable particle of foaming effect or use the wider array of particle of scope.Such as：It is surfactant, stabilizer, color masterbatch, fire-retardant
Agent, bulking agent, antistatic additive, inorganic filler etc., can in right amount be added according to product demand.
It is preferred that, the styrenic polymer resins be styrene, styrene and butadiene block copolymer and styrene-
One or more kinds of styrol copolymer in isoprene block copolymer；It is preferred that, styrenic polymer resins contain
Measure as 50~85 parts.
It is preferred that, the ldpe resin and polyolefin elastomer are polyethylene, polypropylene, ethene and α-alkene
It is more than one or both of copolymer three of hydrocarbon；The alpha-olefin be 1- butylene, 1- amylenes, 1- hexenes, 3,3- dimethyl-
One kind in 1- butylene, 4-methyl-1-pentene, 4,4- dimethyl -1- amylenes and 1- octenes.Ldpe resin and polyene
Olefin elastomer is dispersed phase, wherein, the ratio of ethene and alpha olefin copolymer can change according to actual performance demand, whole point
The total consumption of dephasing is between 5~50%, and preferably 10%~45%；Dispersed phase can be by polyethylene, polypropylene, ethene and alpha-olefin
Copolymer it is a kind of, also can simultaneously be used by a variety of, each component content is decided according to the actual requirements when using, but gross mass is upper
In the range of stating.
It is preferred that, the phase solubilizer is styrene series thermoplastic elastomer SBS, styrene-ethylene/butylene-styrene
Block copolymer SEBS, Polystyrene-Polyethylene graft copolymer PS-g-PE and Polystyrene-Polyethylene/propylene diblock are total to
It is a kind of two or more in polymers SEP；The melt index of the styrene polymer is 1~10g/10min；Low density polyethylene (LDPE)
The melt index of resin is 2~8g/10min；The melt index of polyolefin elastomer is 3~8g/10min, phase solubilizer it is molten
Melt index for 2~20g/10min.
It is preferred that, the initiator is peroxide initiator or Louis's acids initiator；The peroxide triggers
Agent is cumyl peroxide DCP or benzoyl peroxide BPO；Louis's acids initiator is siliceous lewis acid and contained
The lewis acid weight of metal is than the mixture for 0.1~10, wherein siliceous lewis acid is trim,ethylchlorosilane or dimethyl
Chlorosilane, the lewis acid containing metal is one kind in alchlor, indium trichloride, gallium trichloride and alchlor.In addition, can
So that auxiliary agent is added in initiator as needed.The effect of initiator is produced on the molecule segment of polyolefin and polystyrene
Free radical, triggers styrene monomer to be graft-polymerized or polystyrene molecule segment is grafted on molecular polyolefin segment, is formed
Graft copolymer, to lift the compatibility of two-phase.
It is preferred that, the reaction monomers be styrene monomer, acrylic monomer, maleic anhydride one or two kinds of with
On；The nucleator is from more than one or both of calcium carbonate, talcum powder, silica, mica；The Gas nucleation agent
Mesh number be 800~3000 mesh；The foaming agent is that normal atmosphere depresses low boiling point in 80 DEG C of physical blowing agent, can be super
At least one of critical carbon dioxide, supercritical nitrogen, aliphatic C3-C8 hydrocarbon；The aliphatic C3-C8 hydrocarbon be normal butane,
It is more than one or both of iso-butane, pentane, isopentane, neopentane and pentamethylene.Reaction monomers main function is to promote
In Situ Compatibilization reacts.
Another object of the present invention is to propose that one kind prepares expandability polyolefin as described above, polystyrene blend
Particle method, to prepare above-mentioned expandability particle, production efficiency is high, and product quality is stable.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
It is a kind of to prepare expandability polyolefin as described above, the preparation method of the particle of polystyrene blend, including with
Lower step：
(1) by the styrenic polymer resins necessarily matched, ldpe resin, mutually polyolefin elastomer, solubilising
Agent, initiator, nucleator and reaction monomers add extruder, at 150 DEG C~220 DEG C of temperature, with turning for 20~200r/min
Speed stirring, until material reaches molten condition, obtains polymer melt；
(2) foaming agent is added in the polymer melt in step (1), makes to granulate after each component is well mixed；Or, will
After granulating polymer melts in step (1), foaming agent processing is added；
(3) gained particle in step (2) is put into prefoaming machine and sent out in advance, expanded particle of the present invention can be obtained.
It is preferred that, in the step (2), section is by foaming agent injection of polymer melt in an extruder, by twin-screw
Each component is well mixed with static mixer, polymer/physical blowing agent homogeneous system is formed, then polymer/physics is sent out
Infusion homogeneous system is extruded polymer with 40-120kg/h speed under 150-250kg pressure, complete through underwater pelletizer
Into granulation.
It is preferred that, in the step (2), by polymer/physical blowing agent homogeneous system under 200kg pressure with
80kg/h speed extrudes polymer, completes to granulate through underwater pelletizer, wherein during underwater cutpellet, keeps draining pressure
Power is 2~5Mpa, and the water temperature of the underwater cutpellet is 40 DEG C~60 DEG C.
It is preferred that, in the step (2), by the polymer melt in step (1) after die extrusion advance stretching and granulation
The particle of certain particle diameter is obtained, afterwards again adds the particle, solvent and foaming agent of certain mass in autoclave, heating
The particle containing foaming agent is obtained after to 60-130 DEG C, heat-insulation pressure keeping.Wherein, the pressure in autoclave is not higher than 2MPa.
It is preferred that,, can be by by gained particle in step (2) before pre- hair in putting into prefoaming machine in the step (3)
It is dried.
Relative to prior art, a kind of expandability polyolefin of the present invention, the particle of polystyrene blend have
Following advantage：
A kind of expandability polyolefin of the present invention, the particle of polystyrene blend, by polystyrene as continuous
Phase, enough rigidity is provided and expandable for product；Polyolefin is distributed in polystyrene as dispersed phase with island shape,
Enough toughness and impact resistance is provided for product.A kind of expandability polyolefin of the present invention, polystyrene blend
Particle, various mechanographs can be prepared through thermoforming or gum forming, and product has high compression-strength, high-energy absorption, high intensity
And excellent toughness, impact resistance, resist bending and heat-insulating property；Without plasticizer and VOC, it can be used as buffering device, packing timber
Material, automotive upholstery and insulation material etc..
It is of the present invention a kind of to prepare expandability polyolefin as described above, the preparation of the particle of polystyrene blend
Method, is a kind of new expandable thermoplastic polyolefin/polystyrene blends (EPO) particle to be prepared using reactive extrursion
Method.Particle prepared by this method is through pre- hair, and can obtain density can be in 20~600kg/m3EPO foam particles, pass through heat
Turn into various mechanographs after shaping and Compound Machining, profit even can be repeated several times in some application places in excellent product performance
With.
It is of the present invention a kind of to prepare expandability polyolefin as described above, the preparation of the particle of polystyrene blend
Method, EPO foamed materials it is main by polystyrene as continuous phase, provide enough rigidity and expandable for product；Polyene
Hydrocarbon with the distribution of island shape in polystyrene, enough toughness and impact resistance is provided for product as dispersed phase.And polyphenyl second
Alkene and polyolefin are typical thermodynamics Immiscible Polymer Blends, and two alternate dispersivenesses and poor compatibility cause the mechanical property of blend
It is able to can be deteriorated on the contrary with impact resistance.To improve the compatibility and physical index of co-mixing system, this patent is using reactive extrursion
Mode, i.e., produce free radical by the effect of initiator on molecular polyolefin segment in an extruder, to trigger styrene list
Polystyrene molecule segment is directly grafted on molecular polyolefin segment by the graft polymerization of body, forms polyolefin/polyphenyl second
The graft copolymer of alkene, this graft copolymer can lift the compatibility and dispersiveness of two-phase as bulking agent, realize original position
Increase-volume, to lift the mechanical property and impact resistance of material in itself.This method because being continuously finished in an extruder, production efficiency
Height, product quality is stable.
Embodiment
In addition to being defined, technical term used has universal with those skilled in the art of the invention in following examples
The identical meanings of understanding.Test reagent used, is routine biochemistry reagent unless otherwise specified in following examples；It is described
Experimental method, is conventional method unless otherwise specified.
The present invention is described in detail with reference to embodiment.
Each embodiment explanation：
Raw material is low density polyethylene (LDPE) pellet (LDPE), melting means：2~8g/10min (190 DEG C, 2.16kg)；Polystyrene
Pellet (PS), melting means：1~10g/10min (200 DEG C, 5kg)；Ethylene-octene copolymer pellet (POE), melting means：3~7g/
10min (190 DEG C, 2.16kg)；Styrene series thermoplastic elastomer (SBS), melting means：12~20g/10min (200 DEG C, 5kg)；
Polystyrene-Polyethylene/propylene diblock copolymer (SEP), melting means：5~15g/10min (200 DEG C, 5kg)；It is pentane, different
Pentane, trim,ethylchlorosilane, alchlor, styrene monomer, acrylic monomers, maleic anhydride monomer and cumyl peroxide
(DCP) and its auxiliary agent be it is commercially available analysis it is pure.
1 parts by weight are 50kg in each embodiment.
Embodiment 1
Weigh the PS of 80 parts by weight, the LDPE of 10 parts by weight, the POE of 5 parts by weight, the trim,ethylchlorosilane of 1.2 parts by weight,
After the alchlor of 0.8 parts by weight and the talcum powder of 2 parts by weight premix, put into and melt mixing in double screw extruder, extrusion
Machine body temperature is 220 DEG C, and rotating speed is 50rpm.The foaming agent of 6 parts by weight is injected into polymer melt by section in an extruder
In, make foaming agent and various components well mixed in the presence of twin-screw, and make each composition further by static mixer
It is well mixed, temperature is reduced to 180 DEG C, after being pressurizeed through Melt Pump, polymer is melted with 80kg/h under 200 kilograms of pressure
Body is extruded, and is granulated through underwater pelletizer.During granulation, mouth mold aperture is 0.4mm, and water temperature is 40 DEG C, and hydraulic pressure is 3 kilograms.Contained
Expandability EPO particles that have foaming agent and that particle diameter distribution is narrow.Put into prefoaming machine and send out in advance after the particle is dried, choose suitable
When pre expansion technology, density can be prepared in 25~600kg/m3Expanded particle, stand a period of time after, can put into forming machine
Prepare mechanograph.The property indices of expanded particle manufactured in the present embodiment are shown in Table 1.
Embodiment 2
Raw material is substantially the same manner as Example 1, and the styrene monomer and 5 parts by weight of 4 parts by weight are added in the raw material premix stage
SBS.Remaining step and technique are same as Example 1.The property indices of expanded particle manufactured in the present embodiment are shown in Table 1.
Embodiment 3
Raw material is substantially the same manner as Example 1, and the styrene monomer and 1 parts by weight of 3 parts by weight are added in the raw material premix stage
Acrylic monomers, while without trim,ethylchlorosilane and alchlor.Remaining step and technique are same as Example 1.This
The property indices of expanded particle prepared by embodiment are shown in Table 1.
Embodiment 4
Raw material is substantially the same manner as Example 1, and the styrene monomer and 1 parts by weight of 3 parts by weight are added in the raw material premix stage
Maleic anhydride monomer.Screw speed is 100rpm, and remaining step and technique are same as Example 1.Hair manufactured in the present embodiment
The property indices of bubble particle are shown in Table 1.
Embodiment 5
Raw material is substantially the same manner as Example 1, and PS is 60 parts by weight, and LDPE is 20 parts by weight, and POE is 10 parts by weight, 5 weight
The styrene monomer of part.Screw speed is 150rpm, and remaining step and technique are same as Example 1.Hair manufactured in the present embodiment
The property indices of bubble particle are shown in Table 1.
Embodiment 6
Weigh the PS of 80 parts by weight, the LDPE of 10 parts by weight, the POE of 5 parts by weight, the trim,ethylchlorosilane of 1.2 parts by weight,
Put into after the alchlor of 0.8 parts by weight, the talcum powder premix of 2 parts by weight and melt mixing, extruder in double screw extruder
Body temperature is 220 DEG C, and rotating speed is 50rpm.The stretching and granulation after die extrusion, particle diameter cannot be greater than 1.2mm.Then will
The particle of 100 parts by weight, certain mass solvent is placed in autoclave, while injecting the foaming agent of 16 parts by weight.Treat temperature rise
Up to 80 DEG C, heat-insulation pressure keeping 12h then turns on valve and takes out particle, EPO particles that must be containing foaming agent after cleaning up.Should
Particle can be put into prefoaming machine, according to the selection of pre expansion technology, can prepare density in 20~600kg/m3Expanded particle, it is quiet
Put after a period of time, can put into and mechanograph is prepared in forming machine.The property indices of expanded particle manufactured in the present embodiment are shown in
Table 2.
Embodiment 7
Raw material is substantially the same manner as Example 6, and PS is 70 parts by weight, and LDPE is 15 parts by weight, and POE is 10 parts by weight, simultaneously
Increase the SEP of 10 parts by weight；The styrene monomer of 5 parts by weight is injected in the middle part of extruder.Remaining step and technique with
Embodiment 6 is identical.The property indices of expanded particle manufactured in the present embodiment are shown in Table 2.
Embodiment 8
Raw material is substantially the same manner as Example 6, and PS is 85 parts by weight, and LDPE is 8 parts by weight, and POE is 5 parts by weight, 2 parts by weight
Styrene monomer.Remaining step and technique are same as Example 6.The property indices of expanded particle manufactured in the present embodiment
It is shown in Table 2.
Embodiment 9
Raw material is substantially the same manner as Example 6, and styrene monomer is 5 parts by weight, and initiator is DCP and its auxiliary agent, and consumption is
1.5 parts by weight.Remaining step and technique are same as Example 6.The property indices of expanded particle manufactured in the present embodiment are shown in
Table 2.
Embodiment 10
Raw material is substantially the same manner as Example 6, and styrene monomer is 4 parts by weight, and acrylic monomers is 1 parts by weight, initiator
For DCP and its auxiliary agent, consumption is 2 parts by weight.Remaining step and technique are same as Example 6.Foaming grain manufactured in the present embodiment
The property indices of son are shown in Table 2.
Table 1, embodiment 1-5 performance datas
Table 2, embodiment 6-10 performance datas
| Foam property | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 |
| Expansion density (kg/m3) | 30 | 30 | 27 | 29 | 31 |
| Minimum expansion density (kg/m3) | 18 | 17 | 16 | 20 | 18 |
| Grafting rate (%) | 2.4 | 3.2 | 2.8 | 3.4 | 3.9 |
| 10% compressive strength (kPa) | 113 | 108 | 126 | 132 | 129 |
| Bending strength (kPa) | 377 | 369 | 432 | 426 | 441 |
| Ball falling impact value (cm) | 90 | 90 | 85 | 90 | 90 |
| Dimensional contraction rate (%) | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Gel content (%) | 0 | 0 | 0 | 7.8 | 9.3 |
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of expandability polyolefin, the particle of polystyrene blend, it is characterised in that：Include each group of following parts by weight
Point：30~90 parts of styrenic polymer resins, 10~60 parts of ldpe resin, the parts by weight of polyolefin elastomer 2~20,
0~15 part of phase solubilizer, 0~3 part of initiator, 0~10 part of reaction monomers, 0.5~5 part of nucleator, 5~20 parts of foaming agent.
2. expandability polyolefin according to claim 1, the particle of polystyrene blend, it is characterised in that：The benzene
During ethylene polymer resins are styrene, styrene and butadiene block copolymer and styrene-isoprene block copolymer
It is one or more kinds of；It is preferred that, the content of styrenic polymer resins is 50~85 parts.
3. expandability polyolefin according to claim 1, the particle of polystyrene blend, it is characterised in that：It is described low
One kind in Density Polyethylene Resin and the copolymer three that polyolefin elastomer is polyethylene, polypropylene, ethene and alpha-olefin
Or it is two or more；The alpha-olefin be 1- butylene, 1- amylenes, 1- hexenes, 3,3- dimethyl -1- butylene, 4-methyl-1-pentene,
One kind in 4,4- dimethyl -1- amylenes and 1- octenes.
4. expandability polyolefin according to claim 1, the particle of polystyrene blend, it is characterised in that：The phase
Solubilizer is styrene series thermoplastic elastomer SBS, styrene-ethylene/butylene-styrene block copolymer SEBS, polyphenyl second
Two kinds of one kind in alkene-polyethylene graft copolymer PS-g-PE and Polystyrene-Polyethylene/propylene diblock copolymer SEP with
On；The melt index of the styrene polymer is 1~10g/10min；The melt index of ldpe resin be 2~
8g/10min；The melt index of polyolefin elastomer is 3~8g/10min, and the melt index of phase solubilizer is 2~20g/
10min。
5. expandability polyolefin according to claim 1, the particle of polystyrene blend, it is characterised in that：It is described to draw
It is peroxide initiator or Louis's acids initiator to send out agent；The peroxide initiator is cumyl peroxide DCP
Or benzoyl peroxide BPO；Louis's acids initiator is siliceous lewis acid and the lewis acid weight ratio containing metal
For 0.1~10 mixture, wherein siliceous lewis acid is trim,ethylchlorosilane or dimethylchlorosilane, the Louis containing metal
Acid is one kind in alchlor, indium trichloride, gallium trichloride and alchlor.
6. expandability polyolefin according to claim 1, the particle of polystyrene blend, it is characterised in that：It is described anti-
Monomer is answered for styrene monomer, acrylic monomer, more than the one or two kinds of of maleic anhydride；The nucleator is from carbonic acid
It is more than one or both of calcium, talcum powder, silica, mica；The mesh number of the Gas nucleation agent is 800~3000 mesh；
The physical blowing agent is one kind in supercritical carbon dioxide, supercritical nitrogen, aliphatic C3-C8 hydrocarbon；The aliphatic C3-
C8 hydrocarbon is more than one or both of normal butane, iso-butane, pentane, isopentane, neopentane and pentamethylene.
7. a kind of expandability polyolefin prepared as described in claim 1 to 6 any one, the particle of polystyrene blend
Preparation method, it is characterised in that：Comprise the following steps：
(1) by the styrenic polymer resins necessarily matched, ldpe resin, polyolefin elastomer, phase solubilizer, draw
Send out agent, nucleator and reaction monomers and add extruder, at 150 DEG C~220 DEG C of temperature, stirred with 20~200r/min rotating speed
Mix, until material reaches molten condition, obtain polymer melt；
(2) foaming agent is added in the polymer melt in step (1), makes to granulate after each component is well mixed；Or, by step
(1) after the granulating polymer melts in, foaming agent processing is added；
(3) gained particle in step (2) is put into prefoaming machine and sent out in advance, expanded particle of the present invention can be obtained.
8. expandability polyolefin according to claim 7, the preparation method of the particle of polystyrene blend, its feature exist
In：In the step (2), section is by foaming agent injection of polymer melt in an extruder, by twin-screw and static mixer
Each component is well mixed, polymer/physical blowing agent homogeneous system is formed, then by polymer/physical blowing agent homogeneous system
Polymer is extruded with 40-120kg/h speed under 150-250kg pressure, completes to granulate through underwater pelletizer；The step
Suddenly in (3), prepared expanded particle density is 20~600kg/m3。
9. expandability polyolefin according to claim 8, the preparation method of the particle of polystyrene blend, its feature exist
In：, will be poly- with 80kg/h speed under 200kg pressure by polymer/physical blowing agent homogeneous system in the step (2)
Compound is extruded, and completes to granulate through underwater pelletizer, and wherein during underwater cutpellet, holding discharge pressure is 2~5Mpa, described
The water temperature of underwater cutpellet is 40 DEG C~60 DEG C.
10. expandability polyolefin according to claim 7, the preparation method of the particle of polystyrene blend, its feature
It is：In the step (2), by the polymer melt in step (1), advance stretching and granulation obtains certain grain after die extrusion
The particle in footpath, the particle, solvent and foaming agent of certain mass are added in autoclave, be warming up to 60-130 again afterwards
DEG C, obtain the particle containing foaming agent after heat-insulation pressure keeping；In the step (3), prepared expanded particle density for 20~
600kg/m3。
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108276692A (en) * | 2018-01-31 | 2018-07-13 | 淄博洁林塑料制管有限公司 | A kind of coextru-lamination tubing foamed polystyrene thermal insulation material and its manufacturing method |
| CN108929496A (en) * | 2018-08-06 | 2018-12-04 | 合肥壹物新材料有限公司 | A kind of preparation method of fiber composite EPO master batch and EPO foamed plastics |
| CN108976627A (en) * | 2018-06-20 | 2018-12-11 | 安徽江淮汽车集团股份有限公司 | A kind of PS foamed material and preparation method thereof |
| CN109232960A (en) * | 2018-09-19 | 2019-01-18 | 肇庆凯艺装饰制品有限公司 | A kind of method of the overcritical extrusion foaming of PS composite material |
| CN109762200A (en) * | 2017-11-09 | 2019-05-17 | 四川大学 | Functionality can send out/send out polystyrene bead and preparation method thereof |
| CN110330751A (en) * | 2019-07-16 | 2019-10-15 | 波尔玛(辛集)保温材料有限公司 | A kind of dispellable mould casting expandability gasification mold materials and preparation method thereof |
| CN110452472A (en) * | 2019-09-23 | 2019-11-15 | 天津斯坦利新型材料有限公司 | Expandable polystyrene particle and preparation method |
| CN111909531A (en) * | 2019-05-09 | 2020-11-10 | 中国石油化工股份有限公司 | Polyolefin composition and pallet and method for making the same |
| CN114316458A (en) * | 2022-01-26 | 2022-04-12 | 无锡会通轻质材料股份有限公司 | Expanded polyolefin bead and molded part thereof |
| CN114456511A (en) * | 2022-01-26 | 2022-05-10 | 无锡会通轻质材料股份有限公司 | Expanded polyolefin bead and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402765A (en) * | 2008-11-17 | 2009-04-08 | 中国科学院长春应用化学研究所 | Method for producing polythene/polystyrene alloy with capacity increasing of reaction in-situ |
| CN102272222A (en) * | 2008-12-30 | 2011-12-07 | 巴斯夫欧洲公司 | Elastic particle foam based on polyolefin/styrene polymer mixtures |
| CN104974438A (en) * | 2014-04-03 | 2015-10-14 | 上海楚堰实业有限公司 | Flame retardant polystyrene material and preparation method thereof |
-
2017
- 2017-07-11 CN CN201710561535.XA patent/CN107177117A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402765A (en) * | 2008-11-17 | 2009-04-08 | 中国科学院长春应用化学研究所 | Method for producing polythene/polystyrene alloy with capacity increasing of reaction in-situ |
| CN102272222A (en) * | 2008-12-30 | 2011-12-07 | 巴斯夫欧洲公司 | Elastic particle foam based on polyolefin/styrene polymer mixtures |
| CN104974438A (en) * | 2014-04-03 | 2015-10-14 | 上海楚堰实业有限公司 | Flame retardant polystyrene material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| SUN YIJUN等: "In situ compatibilization of polyolefin and polystyrene using Friedel—Crafts alkylation through reactive extrusion", 《POLYMER》 * |
| 徐建平等: "反应挤出就地增容HDPE/PS合金", 《合成树脂和塑料》 * |
| 罗河胜: "《塑料改性与实用工艺》", 30 April 2007, 广东科技出版社 * |
Cited By (14)
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|---|---|---|---|---|
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| CN108276692A (en) * | 2018-01-31 | 2018-07-13 | 淄博洁林塑料制管有限公司 | A kind of coextru-lamination tubing foamed polystyrene thermal insulation material and its manufacturing method |
| CN108976627A (en) * | 2018-06-20 | 2018-12-11 | 安徽江淮汽车集团股份有限公司 | A kind of PS foamed material and preparation method thereof |
| CN108929496A (en) * | 2018-08-06 | 2018-12-04 | 合肥壹物新材料有限公司 | A kind of preparation method of fiber composite EPO master batch and EPO foamed plastics |
| CN108929496B (en) * | 2018-08-06 | 2021-03-19 | 合肥壹物新材料科技股份有限公司 | Preparation method of fiber composite EPO master batch and EPO foamed plastic |
| CN109232960A (en) * | 2018-09-19 | 2019-01-18 | 肇庆凯艺装饰制品有限公司 | A kind of method of the overcritical extrusion foaming of PS composite material |
| CN111909531B (en) * | 2019-05-09 | 2022-05-20 | 中国石油化工股份有限公司 | Polyolefin composition and pallet and method for making the same |
| CN111909531A (en) * | 2019-05-09 | 2020-11-10 | 中国石油化工股份有限公司 | Polyolefin composition and pallet and method for making the same |
| CN110330751A (en) * | 2019-07-16 | 2019-10-15 | 波尔玛(辛集)保温材料有限公司 | A kind of dispellable mould casting expandability gasification mold materials and preparation method thereof |
| CN110452472A (en) * | 2019-09-23 | 2019-11-15 | 天津斯坦利新型材料有限公司 | Expandable polystyrene particle and preparation method |
| CN114456511A (en) * | 2022-01-26 | 2022-05-10 | 无锡会通轻质材料股份有限公司 | Expanded polyolefin bead and preparation method thereof |
| CN114316458A (en) * | 2022-01-26 | 2022-04-12 | 无锡会通轻质材料股份有限公司 | Expanded polyolefin bead and molded part thereof |
| CN114456511B (en) * | 2022-01-26 | 2023-07-11 | 无锡会通轻质材料股份有限公司 | Foaming polyolefin beads and preparation method thereof |
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