CN105754242A - Polystyrene/high-density polyethylene blended high-heat-preservation extruded sheet and production method thereof - Google Patents
Polystyrene/high-density polyethylene blended high-heat-preservation extruded sheet and production method thereof Download PDFInfo
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- CN105754242A CN105754242A CN201610286801.8A CN201610286801A CN105754242A CN 105754242 A CN105754242 A CN 105754242A CN 201610286801 A CN201610286801 A CN 201610286801A CN 105754242 A CN105754242 A CN 105754242A
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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
- 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
-
- 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
-
- 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
- B29C2948/9258—Velocity
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
Abstract
The invention discloses a high-heat-preservation extruded sheet. The high-heat-preservation extruded sheet is produced from the following components: a polystyrene fresh material, a polystyrene reclaimed white material, a polystyrene reclaimed dark brown material, high-density polyethylene, beta-polypropylene, talcum powder, decabromodiphenyl ethane, zinc borate, color masterbatch, tert-butyl peroxybenzoate, benzoyl peroxide, a styrene grafted maleic anhydride copolymer and a foaming agent. A production method of the high-heat-preservation extruded sheet is correspondingly provided. The extruded sheet with excellent properties is obtained. According to the high-heat-preservation extruded sheet and the production method thereof disclosed by the invention, reclaimed materials are used and matched with the polystyrene fresh material for producing the high-strength extruded sheet, so that the production cost is greatly reduced; the chain scission problem of the reclaimed materials is solved, so that the reclaimed materials have more excellent properties than general waste materials. High-density polyethylene auxiliary materials, an appropriate quantity of a solubilizer and other additives are added, so that the tenacity of products is improved, and the problems that the products are crisp in nature and easy to break are solved. The sheet produced by the method is high in intensity, good in fire resistance properties and good in heat preservation effects.
Description
Technical field
The present invention relates to a kind of extruded sheet, be specifically related to blended high insulating extruded board of a kind of polystyrene/high density polyethylene (HDPE) and preparation method thereof.
Background technology
On market, the laying insulation material of existing installed floor and floor heating mainly uses and changes benzene plate, extruded sheet and polyurethane, wherein benzene plate is generally the least expensive, heat insulation effect is general, can absorb water and deform, need after finishing heat-insulation layer to do that some other waterproof to wait measure extruded sheet to compare benzene plate the most a lot, thermal conductivity ratio benzene plate is low, the little higher polyurethane of price is the one that inside existing insulation material, performance is best, the insulation material in the fields such as refrigerator freezer is exactly polyurethane, heat conductivity is well below benzene plate and extruded sheet, the polyurethane insulation coating of substantially one half thickness just can reach benzene plate and the heat insulation effect of extruded sheet original thickness, but price exceeds much than benzene plate and extruded sheet；The heat-insulation and heat-preservation of extruded sheet is strong, crushing resistance strong, energy is moistureproof, and environmental protection；The intensity of extruded sheet itself is higher, thus causes sheet material more crisp, the most pliable, easily makes sheet material damage, ftractures；Poor air permeability and the shortcoming such as price is higher.Polystyrene plastics is a kind of general-purpose plastics having many uses, application is broadly divided into injection-molded item, extruded product and foamed product three major types, and polystyrene plastics goods are because of its low raw-material cost, excellent performance, of many uses and develop quickly, the most occupied foam article prostatitis.At present, more polystyrene plastics goods, i.e. it is rejected with rear, the quantity of refuse formed is bigger, cause more serious white pollution problems, and these white pollution sources can not be from degraded, if white pollution problems to be solved is accomplished by these waste or used plastics are carried out recycling.
The polystyrene waste plastic reclaimed, it is generally required to through hot melt, filter, decolour, recrystallization, the step such as pelletize, this step is easily caused molecule chain break, use the polystyrene after these chain ruptures to reclaim DABAI material and be directly used in the laying production of an installed floor and floor heating, its product strength obtained is relatively low, properties of product are more inferior, do not reach preferably recovering effect.
Summary of the invention
Present invention aim at for the deficiencies in the prior art, it is provided that high insulating extruded board that polystyrene/high density polyethylene (HDPE) that a kind of intensity is high, fire resistance is good is blended and preparation method thereof.
Technical scheme: the high insulating extruded board that a kind of polystyrene/high density polyethylene (HDPE) of the present invention is blended, it is characterised in that include following component:
In terms of parts by weight.
Preferably, the high insulating extruded board that described polystyrene/high density polyethylene (HDPE) is blended includes following component:
In terms of parts by weight.
Preferably, the carrier of described Masterbatch is perfluoroethylene-propylene.
The present invention also provides for the preparation method of the high insulating extruded board that above-mentioned polystyrene/high density polyethylene (HDPE) is blended, and comprises the steps:
(1) polystyrene through desolventing technology is reclaimed in DABAI material and polystyrene recovery dark brown material addition batch mixer, 150～200 DEG C it are heated under logical condition of nitrogen gas, and stop stirring after adding peroxidized t-butyl perbenzoate and benzoyl peroxide, mix homogeneously insulated and stirred 1.5～4h and be cooled to 50～80 DEG C；
(2) system in step (1) adds polystyrene virgin material, high density polyethylene (HDPE), Masterbatch and styrene-grafted copolymer-maleic anhydride, 180～250 DEG C it are again heated under logical condition of nitrogen gas, by mix homogeneously insulated and stirred 0.5～2h, add TDE, Firebrake ZB, β-polypropylene and Pulvis Talci and continue stirring 1～2h；After being lowered the temperature by system temperature, pelletize processes；
(3) pellet step (2) obtained is sent in the feeding chamber of extruding machine, and injects foaming agent, carries out extrusion moulding；
(4) being transmitted through several jockey pulleys by the extruded sheet exported by extruding machine, and lower the temperature in transmitting procedure, cooling rate remains 2～5 DEG C/S, is dried and trimming processes.
Preferably, described extruding machine is divided into a double screw extruder and No. two single screw extrusion machines；A described double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region is set as 175～180 DEG C, 180～190 DEG C, 185～195 DEG C, 190～200 DEG C, 225～235 DEG C, 195～205 DEG C, 195～205 DEG C, 215～225 DEG C, 225～235 DEG C, 215～225 DEG C, 195～205 DEG C and 185～195 DEG C successively；Described No. two single screw extrusion machines are divided into 9 each working regions, and by feed end, the first seven is set as 175～185 DEG C with the temperature of the 9th working region, and the temperature of the 8th working region is set as 195～205 DEG C.
Preferably, the screw speed of a described double screw extruder is 150～250rpm, and the screw speed of No. two single screw extrusion machines is 5～20rpm, and the material mouth pressure of No. two single screw extrusion machines is 8～20MPa.
Preferably, in step (3), foaming agent injects in the 6th working region of a described double screw extruder.
Preferably, described in step (3), during extrusion moulding, top board temperature controls is 60～100 DEG C, and it is 60～100 DEG C that lower platen temperature controls.
Beneficial effect: (1) present invention uses reclaimed materials collocation polystyrene virgin material to prepare the extruded sheet of high intensity, greatly reduce production cost, reclaimed materials processing procedure can occur the problem that chain is disconnected, by adding peroxidized t-butyl perbenzoate and benzoyl peroxide dual-component catalyst first to reclaimed materials process in the present invention, the chain disconnected is promoted again to increase, making it have ratio general reclaimed materials preferably quality, production cost is low improves product strength simultaneously reducing；(2) extruded sheet is with the polystyrene containing phenyl ring as major ingredient, the extruded sheet obtained generally there are that matter is crisp, the problem of frangibility, the present invention is by with polystyrene as major ingredient, with high density polyethylene (HDPE) as adjuvant, add suitable solubilizing agent and other additives, improve the toughness of product, solve that matter is crisp, the problem of frangibility；(3) preparation method that the present invention provides selects suitable mixture temperature and screw speed, reduce the shear heat between screw speed and raw material, thus increase the density of sheet material；Under the conditions of low screw speed, inject foaming agent simultaneously, contribute to generating Guan Bi abscess, reduce cell density, improve sheet material hardness, improve heat insulation effect simultaneously.
Detailed description of the invention
Below by embodiment, technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1: the high insulating extruded board that a kind of polystyrene/high density polyethylene (HDPE) is blended includes following component:
In terms of parts by weight.
The carrier of described Masterbatch is perfluoroethylene-propylene.
The preparation method of the high insulating extruded board that above-mentioned polystyrene/high density polyethylene (HDPE) is blended, comprises the steps:
(1) polystyrene through desolventing technology is reclaimed in DABAI material and polystyrene recovery dark brown material addition batch mixer, 170 DEG C it are heated under logical condition of nitrogen gas, and stop stirring after adding peroxidized t-butyl perbenzoate and benzoyl peroxide, mix homogeneously insulated and stirred 2.5h and be cooled to 55 DEG C；
(2) system in step (1) adds polystyrene virgin material, high density polyethylene (HDPE), Masterbatch and styrene-grafted copolymer-maleic anhydride, 195 DEG C it are again heated under logical condition of nitrogen gas, by mix homogeneously insulated and stirred 1.5h, add TDE, Firebrake ZB, β-polypropylene and Pulvis Talci and continue stirring 1.5h；After being lowered the temperature by system temperature, pelletize processes；
(3) pellet step (2) obtained is sent in the feeding chamber of extruding machine, and injects foaming agent, carries out extrusion moulding；Described extruding machine is divided into a double screw extruder and No. two single screw extrusion machines；A described double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region is set as 180 DEG C, 185 DEG C, 190 DEG C, 195 DEG C, 230 DEG C, 200 DEG C, 200 DEG C, 220 DEG C, 230 DEG C, 220 DEG C, 200 DEG C and 190 DEG C successively；Described No. two single screw extrusion machines are divided into 9 each working regions, and by feed end, the first seven is set as 180 DEG C with the temperature of the 9th working region, and the temperature of the 8th working region is set as 200 DEG C；The screw speed of a described double screw extruder is 180rpm, and the screw speed of No. two single screw extrusion machines is 15rpm；The material mouth pressure of No. two single screw extrusion machines is 15MPa；During described extrusion moulding, top board temperature controls is 80 DEG C, and it is 80 DEG C that lower platen temperature controls；Foaming agent injects in the 6th working region of a described double screw extruder；
(4) being transmitted through several jockey pulleys by the extruded sheet exported by extruding machine, and lower the temperature in transmitting procedure, cooling rate remains 3 DEG C/S, is dried and trimming processes.
Embodiment 2: the high insulating extruded board that a kind of polystyrene/high density polyethylene (HDPE) is blended includes following component:
In terms of parts by weight.
The carrier of described Masterbatch is perfluoroethylene-propylene.
The preparation method of the high insulating extruded board that above-mentioned polystyrene/high density polyethylene (HDPE) is blended, comprises the steps:
(1) polystyrene through desolventing technology is reclaimed in DABAI material and polystyrene recovery dark brown material addition batch mixer, 150 DEG C it are heated under logical condition of nitrogen gas, and stop stirring after adding peroxidized t-butyl perbenzoate and benzoyl peroxide, mix homogeneously insulated and stirred 1.5h and be cooled to 50 DEG C；
System in step (1) adds polystyrene virgin material, high density polyethylene (HDPE), Masterbatch and styrene-grafted copolymer-maleic anhydride, 180 DEG C it are again heated under logical condition of nitrogen gas, by mix homogeneously insulated and stirred 0.5h, add TDE, Firebrake ZB, β-polypropylene and Pulvis Talci and continue stirring 1h；After being lowered the temperature by system temperature, pelletize processes；
(3) pellet step (2) obtained is sent in the feeding chamber of extruding machine, and injects foaming agent, carries out extrusion moulding；Described extruding machine is divided into a double screw extruder and No. two single screw extrusion machines；A described double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region is set as 175 DEG C, 180 DEG C, 185 DEG C, 190 DEG C, 225 DEG C, 195 DEG C, 195 DEG C, 215 DEG C, 225 DEG C, 215 DEG C, 195 DEG C and 185 DEG C successively；Described No. two single screw extrusion machines are divided into 9 each working regions, and by feed end, the first seven is set as 175 DEG C with the temperature of the 9th working region, and the temperature of the 8th working region is set as 195 DEG C；The screw speed of a described double screw extruder is 150rpm, and the screw speed of No. two single screw extrusion machines is 5rpm；The material mouth pressure of No. two single screw extrusion machines is 8MPa；During described extrusion moulding, top board temperature controls is 60 DEG C, and it is 60 DEG C that lower platen temperature controls；Foaming agent injects in the 6th working region of a described double screw extruder；
(4) being transmitted through several jockey pulleys by the extruded sheet exported by extruding machine, and lower the temperature in transmitting procedure, cooling rate remains 2 DEG C/S, is dried and trimming processes.
Embodiment 3: the high insulating extruded board that a kind of polystyrene/high density polyethylene (HDPE) is blended includes following component:
In terms of parts by weight.
The carrier of described Masterbatch is perfluoroethylene-propylene.
The preparation method of the high insulating extruded board that above-mentioned polystyrene/high density polyethylene (HDPE) is blended, comprises the steps:
(1) polystyrene through desolventing technology is reclaimed in DABAI material and polystyrene recovery dark brown material addition batch mixer, 200 DEG C it are heated under logical condition of nitrogen gas, and stop stirring after adding peroxidized t-butyl perbenzoate and benzoyl peroxide, mix homogeneously insulated and stirred 4h and be cooled to 80 DEG C；
(2) system in step (1) adds polystyrene virgin material, high density polyethylene (HDPE), Masterbatch and styrene-grafted copolymer-maleic anhydride, 250 DEG C it are again heated under logical condition of nitrogen gas, by mix homogeneously insulated and stirred 2h, add TDE, Firebrake ZB, β-polypropylene and Pulvis Talci and continue stirring 2h；After being lowered the temperature by system temperature, pelletize processes；
(3) pellet step (2) obtained is sent in the feeding chamber of extruding machine, and injects foaming agent, carries out extrusion moulding；Described extruding machine is divided into a double screw extruder and No. two single screw extrusion machines；A described double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region is set as 180 DEG C, 190 DEG C, 195 DEG C, 200 DEG C, 235 DEG C, 205 DEG C, 205 DEG C, 225 DEG C, 235 DEG C, 225 DEG C, 205 DEG C and 195 DEG C successively；Described No. two single screw extrusion machines are divided into 9 each working regions, and by feed end, the first seven is set as 185 DEG C with the temperature of the 9th working region, and the temperature of the 8th working region is set as 205 DEG C；The screw speed of a described double screw extruder is 250rpm, and the screw speed of No. two single screw extrusion machines is 20rpm；The material mouth pressure of No. two single screw extrusion machines is 20MPa；During described extrusion moulding, top board temperature controls is 100 DEG C, and it is 100 DEG C that lower platen temperature controls；Foaming agent injects in the 6th working region of a described double screw extruder；
(4) being transmitted through several jockey pulleys by the extruded sheet exported by extruding machine, and lower the temperature in transmitting procedure, cooling rate remains 5 DEG C/S, is dried and trimming processes.
Embodiment 1～3 product that this formula and method obtain is used to be shown in Table 1 with the data of existing product performance comparison
Table 1 embodiment 1～3 product and the data of existing product performance comparison
Although as it has been described above, represented and described the present invention with reference to specific preferred embodiment, but it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention premise defined without departing from claims, can various changes can be made in the form and details to it.
Claims (8)
1. the high insulating extruded board that polystyrene/high density polyethylene (HDPE) is blended, it is characterised in that include following component:
The high insulating extruded board that polystyrene/high density polyethylene (HDPE) the most according to claim 1 is blended, its feature exists
In including following component:
3. the high insulating extruded board being blended according to the polystyrene/high density polyethylene (HDPE) described in any one of claim 1～2,
It is characterized in that: the carrier of described Masterbatch is perfluoroethylene-propylene.
4. the high insulating extruded board that the polystyrene/high density polyethylene (HDPE) as described in any one of claim 1～2 is blended
Preparation method, it is characterised in that comprise the steps:
(1) polystyrene through desolventing technology is reclaimed in DABAI material and polystyrene recovery dark brown material addition batch mixer,
Under logical condition of nitrogen gas, it is heated to 150～200 DEG C, and adds peroxidized t-butyl perbenzoate and benzoyl peroxide, mixing
Uniformly and stop after insulated and stirred 1.5～4h stirring and being cooled to 50～80 DEG C；
(2) system in step (1) adds polystyrene virgin material, high density polyethylene (HDPE), Masterbatch and benzene second
Alkene grafted maleic anhydride copolymer, is again heated to 180～250 DEG C under logical condition of nitrogen gas, mix homogeneously insulation is stirred
Mix 0.5～2h, add TDE, Firebrake ZB, β-polypropylene and Pulvis Talci and continue stirring 1～2h；By system
After greenhouse cooling, pelletize processes；
(3) pellet step (2) obtained is sent in the feeding chamber of extruding machine, and injects foaming agent, is extruded into
Type；
(4) extruded sheet exported by extruding machine is transmitted through several jockey pulleys, and lower the temperature in transmitting procedure, cooling
Speed remains 2～5 DEG C/S, is dried and trimming processes.
Preparation method the most according to claim 4, it is characterised in that: described extruding machine is divided into a twin screw to squeeze
Go out machine and No. two single screw extrusion machines；A described double screw extruder is divided into 12 working regions, by charging aperture
The temperature of each working region be set as successively 175～180 DEG C, 180～190 DEG C, 185～195 DEG C, 190～200 DEG C,
225～235 DEG C, 195～205 DEG C, 195～205 DEG C, 215～225 DEG C, 225～235 DEG C, 215～225 DEG C, 195～205 DEG C
With 185～195 DEG C；Described No. two single screw extrusion machines are divided into 9 each working regions, and by feed end, the first seven is with the 9th
The temperature of individual working region is set as 175～185 DEG C, and the temperature of the 8th working region is set as 195～205 DEG C.
Preparation method the most according to claim 5, it is characterised in that: the screw rod of a described double screw extruder
Rotating speed is 150～250rpm, and the screw speed of No. two single screw extrusion machines is 5～20rpm, No. two single screw extrusion machines
Material mouth pressure is 8～20MPa.
Preparation method the most according to claim 5, it is characterised in that: in step (3), foaming agent is in described No. one
6th working region of double screw extruder is injected.
Preparation method the most according to claim 4, it is characterised in that: extrusion moulding process described in step (3)
It is 60～100 DEG C that middle top board temperature controls, and it is 60～100 DEG C that lower platen temperature controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286801.8A CN105754242A (en) | 2016-04-29 | 2016-04-29 | Polystyrene/high-density polyethylene blended high-heat-preservation extruded sheet and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286801.8A CN105754242A (en) | 2016-04-29 | 2016-04-29 | Polystyrene/high-density polyethylene blended high-heat-preservation extruded sheet and production method thereof |
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| CN105754242A true CN105754242A (en) | 2016-07-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107513204A (en) * | 2017-09-29 | 2017-12-26 | 甘肃聚能环保科技有限公司 | A kind of formula and its preparation technology with heat-insulating property PE pipes |
| CN108317305A (en) * | 2018-01-31 | 2018-07-24 | 淄博洁林塑料制管有限公司 | A kind of polystyrene continuously multi-layer co-extruded foaming heat-insulating composite pipe material and its manufacturing method |
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| CN103213366A (en) * | 2012-01-19 | 2013-07-24 | 上海英科实业有限公司 | Glass fiber reinforced polystyrene micro-foam double-layer co-extrusion section and its making method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107513204A (en) * | 2017-09-29 | 2017-12-26 | 甘肃聚能环保科技有限公司 | A kind of formula and its preparation technology with heat-insulating property PE pipes |
| CN108317305A (en) * | 2018-01-31 | 2018-07-24 | 淄博洁林塑料制管有限公司 | A kind of polystyrene continuously multi-layer co-extruded foaming heat-insulating composite pipe material and its manufacturing method |
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Application publication date: 20160713 |