CN105885261A - Polystyrene thermal-insulation plastic extrusion plate similar to EPS plate and preparation method thereof - Google Patents
Polystyrene thermal-insulation plastic extrusion plate similar to EPS plate and preparation method thereof Download PDFInfo
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- CN105885261A CN105885261A CN201610287026.8A CN201610287026A CN105885261A CN 105885261 A CN105885261 A CN 105885261A CN 201610287026 A CN201610287026 A CN 201610287026A CN 105885261 A CN105885261 A CN 105885261A
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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
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- C08L25/06—Polystyrene
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- C—CHEMISTRY; METALLURGY
- 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
- 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
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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
- 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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- 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
- C08J2425/00—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
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
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- C—CHEMISTRY; METALLURGY
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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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Abstract
The invention discloses a polystyrene thermal-insulation plastic extrusion plate similar to an EPS plate and a preparation method thereof. The polystyrene thermal-insulation plastic extrusion plate is prepared from the following components in parts by weight: 400-600 parts of polystyrene particles, 10-15 parts of benzoyl butyl ester peroxide, 8-12 parts of sodium dodecyl benzene sulfonate, 10-15 parts of benzoyl peroxide, 3-7 parts of 4-methyl sodium valerate, 0.5-1.2 parts of alkenyl succinate, 0.8-1.2 parts of zinc dialkyl dithiophosphate, 1-3 parts of ammonium benzoate, 1.2-1.4 parts of thiol benzimidazole and 4-6 parts of a foaming agent, wherein the polystyrene particles are mixed by polystyrene fresh materials, polystyrene reclaimed materials and polystyrene waste. By controlling the reaction temperature of the material and an adding proportion of a nucleating agent, the plastic extrusion plate is guaranteed to not get black; and meanwhile, the raw materials are not added with color master batches, so that the plate color is not deepened, and the appearance of the plate is similar to the that of the EPS plate; and the plate is white, clean and environmentally-friendly.
Description
Technical field
The present invention relates to a kind of extruded sheet, be specifically related to the extruded sheet of a kind EPS sheet.
Background technology
On market, existing external-wall heat-insulation material mainly uses and changes benzene plate (EPS), polyurethane sheet and extruded sheet (XPS),
Wherein benzene plate is generally the least expensive, and heat insulation effect is general, can absorb water and deform, need to do waterproof measure of Denging after finishing heat-insulation layer.
The insulation material in the fields such as polyurethane is the one that inside existing insulation material, performance is best, refrigerator freezer is exactly poly-ammonia
Ester, heat conductivity just can reach benzene plate well below benzene plate and extruded sheet, the polyurethane insulation coating of substantially one half thickness
With the heat insulation effect of extruded sheet original thickness, but price exceeds much than benzene plate and extruded sheet.Extruded sheet is compared benzene plate and is protected
Temp effect is well a lot, and thermal conductivity ratio benzene plate is low, and price is slightly higher with benzene plate, and less than polyurethane sheet.
Extruded sheet is the hard foamed insulation material of the third generation, and production process is simple, it be by polystyrene resin and other add
Add agent and have continuous uniform top layer and the sheet material of closed pore formula honeycomb texture through what extrusion process produced, these honeycomb textures
Slab, does not haves space completely, and the insulation material of this closed pore formula structure can have high pressure, has same simultaneously
Deng the heat conductivity (only 0.027W/M.K) of low value and unfailing excellent insulation and compressive property.
The production requirement of current extruded sheet needs sheet material to be white mostly, not only outward appearance better appearance, the simultaneously plate of white
Material also illustrates that sheet material compares environmental protection, but a lot of XPS producers less expensive manufacture of materials sheet material of recovery adds aborning
Adding Masterbatch, allow sheet material become deep color the most afterwards, this kind of sheet material can mix a lot to bad border and human body nuisance
Matter, and cannot be from the quality of outward appearance identification material.This is also why extruded sheet is compared has preferably with EPS sheet
Performance, but many times people still select the reason of EPS sheet traditionally, and EPS sheet is by expandable polystyrene bead
Hot briquetting and the prepared polystyrol plastic foam plate material with hole-closing structure in a mold after heated prefoam, in
Now white, the clean environmental protection of comparison from the point of view of outward appearance thoroughly.
Summary of the invention
Goal of the invention: present invention aim at for the deficiencies in the prior art, it is provided that the class EPS sheet that a kind of color is the whitest
Polystyrene heat-preservation extruded sheet.
Another object of the present invention is to provide the preparation of a kind of polystyrene heat-preservation extruded sheet preparing above-mentioned class EPS sheet
Method.
Technical scheme: the polystyrene heat-preservation extruded sheet of class EPS sheet of the present invention, including following component:
In parts by weight, wherein granules of polystyrene is polystyrene virgin material, polystyrene reclaimed materials and polyphenyl second to each component
Alkene waste material mixing composition, mixed proportion is 1.5:2:1.5.
The present invention further preferably technical scheme is, including following component:
Preferably, the carrier of described Masterbatch is perfluoroethylene-propylene.
The preparation method of the polystyrene heat-preservation extruded sheet of one kind EPS sheet, comprises the steps:
(1) mixing granulation after polystyrene reclaimed materials and waste polystyrene being reclaimed, adds jointly with polystyrene virgin material
Enter in batch mixer, then in batch mixer, add benzoyl peroxide butyl ester, dodecylbenzene sodium sulfonate and benzoyl peroxide,
Start batch mixer mixed material, and mixed material is heated to 150～200 DEG C, insulated and stirred 2～shutdown cooling after 4 hours；
(2) in batch mixer, alkenyl succinic acid ester, zinc dialkyl dithiophosphate and mercapto benzimidazole are added, then
Secondary startup batch mixer mixed material, and it is heated to 180～200 DEG C, insulated and stirred 1～shutdown after 1.5 hours, by mixture
Material is cooled to 50～70 DEG C, again adds 4-methylvaleric acid sodium, ammonium benzoate continuation stirring 1～2 hour；
(3) sending into pelletize in comminutor after the mixed material cooling that will obtain in step (2), pelletize will obtain after completing
Granule cooling after send in the feeding chamber of extruding machine, start extruding machine, melt extrude, and synchronize to inject in extruding machine
Foaming agent, carries out extrusion moulding.
Preferably, extruding machine described in step (3) is divided into a double screw extruder and No. two single screw extrusion machines；Its
In, a double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region sets successively
Be set to 180～190 DEG C, 185～195 DEG C, 185～195 DEG C, 190～200 DEG C, 225～235 DEG C, 195～205 DEG C, 195～205 DEG C,
195～205 DEG C, 225～235 DEG C, 225～235 DEG C, 195～205 DEG C and 195～205 DEG C；No. two single screw extrusion machines are divided into
9 working regions, by feed end, the first seven is set as 175～185 DEG C with the temperature of the 9th working region, the 8th
The temperature of individual working region is set as 195～205 DEG C.
Preferably, the screw speed of a described double screw extruder is 150～220rpm, No. two single screw extrusion machines
Screw speed is 8～15rpm, and the material mouth pressure of No. two single screw extrusion machines is 8～20MPa.
Preferably, foaming agent injects in the 6th working region of a described double screw extruder.
Preferably, in step (3), during extrusion moulding, the top board temperature of described extruding machine is 60～100 DEG C, presses down
Plate temperature is 60～100 DEG C.
Beneficial effect: (1) present invention is by controlling the reaction temperature of material, and the adding proportion of nucleator, it is ensured that extrusion molding
Plate will not turn black, and simultaneously without Masterbatch in the raw material of the present invention, sheet material color will not be deepened, in appearance can be close
EPS sheet material, sheet material is thoroughly white, clean environment firendly；(2) mixing of polystyrene virgin material, reclaimed materials and waste material is made by the present invention
For major ingredient, the production cost of enterprise is greatly lowered, increases economic efficiency, and cause for reclaimed materials Middle molecule chain interruption
The problem that tails off of the phenyl ring that can foam, the present invention is by adding BP butyl ester, dodecylbenzene sodium sulfonate and mistake
Reclaimed materials is first processed by BP as activating agent and catalyst, promotes the chain disconnected again to increase, it is ensured that foaming effect
Really, the proportion of sheet material is not affected；(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；Simultaneously under the conditions of low screw speed
Inject foaming agent, contribute to generating Guan Bi abscess, reduce cell density, improve sheet material hardness, improve heat insulation effect simultaneously.
Detailed description of the invention
Below technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described enforcement
Example.
The polystyrene heat-preservation extruded sheet of embodiment 1: kind EPS sheet, including following component:
In parts by weight, wherein granules of polystyrene is polystyrene virgin material, polystyrene reclaimed materials and polyphenyl second to each component
Alkene waste material mixing composition, mixed proportion is 1.5:2:1.5.
The preparation method of the polystyrene heat-preservation extruded sheet of the class EPS sheet of the present embodiment, comprises the steps:
(1) mixing granulation after polystyrene reclaimed materials and waste polystyrene being reclaimed, adds jointly with polystyrene virgin material
Enter in batch mixer, then in batch mixer, add benzoyl peroxide butyl ester, dodecylbenzene sodium sulfonate and benzoyl peroxide,
Starting batch mixer mixed material, and mixed material is heated to 150 DEG C, insulated and stirred shuts down cooling after 2 hours；
(2) in batch mixer, alkenyl succinic acid ester, zinc dialkyl dithiophosphate and mercapto benzimidazole are added, then
Secondary startup batch mixer mixed material, and it is heated to 180 DEG C, insulated and stirred was shut down after 1 hour, was cooled to by mixed material
50 DEG C, again add 4-methylvaleric acid sodium, ammonium benzoate continuation stirring 1 hour；
(3) sending into pelletize in comminutor after the mixed material cooling that will obtain in step (2), pelletize will obtain after completing
Granule cooling after send in the feeding chamber of extruding machine, start extruding machine, melt extrude, and synchronize to inject in extruding machine
Foaming agent, carries out extrusion moulding；Described extruding machine is divided into a double screw extruder and No. two single screw extrusion machines；Wherein,
A number double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region is set as successively
180℃、185℃、185℃、190℃、225℃、195℃、195℃、195℃、225℃、225℃、195℃
With 195 DEG C；No. two single screw extrusion machines are divided into 9 working regions, the first seven individual and the 9th working area by feed end
The temperature in territory is set as 175 DEG C, and the temperature of the 8th working region is set as 195 DEG C；During extrusion moulding described squeeze
The top board temperature of molding machine is 60 DEG C, and lower platen temperature is 60 DEG C.
The polystyrene heat-preservation extruded sheet of embodiment 2: kind EPS sheet, including following component:
In parts by weight, wherein granules of polystyrene is polystyrene virgin material, polystyrene reclaimed materials and polyphenyl second to each component
Alkene waste material mixing composition, mixed proportion is 1.5:2:1.5.
The preparation method of the polystyrene heat-preservation extruded sheet of the class EPS sheet of the present embodiment, comprises the steps:
(1) mixing granulation after polystyrene reclaimed materials and waste polystyrene being reclaimed, adds jointly with polystyrene virgin material
Enter in batch mixer, then in batch mixer, add benzoyl peroxide butyl ester, dodecylbenzene sodium sulfonate and benzoyl peroxide,
Starting batch mixer mixed material, and mixed material is heated to 200 DEG C, insulated and stirred shuts down cooling after 4 hours；
(2) in batch mixer, alkenyl succinic acid ester, zinc dialkyl dithiophosphate and mercapto benzimidazole are added, then
Secondary startup batch mixer mixed material, and it is heated to 200 DEG C, insulated and stirred was shut down after 1.5 hours, was cooled down by mixed material
To 70 DEG C, again add 4-methylvaleric acid sodium, ammonium benzoate continuation stirring 2 hours；
(3) sending into pelletize in comminutor after the mixed material cooling that will obtain in step (2), pelletize will obtain after completing
Granule cooling after send in the feeding chamber of extruding machine, start extruding machine, melt extrude, and synchronize to inject in extruding machine
Foaming agent, carries out extrusion moulding；Described extruding machine is divided into a double screw extruder and No. two single screw extrusion machines；Wherein,
A number double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region is set as successively
190℃、195℃、195℃、200℃、235℃、205℃、205℃、205℃、235℃、235℃、205℃
With 205 DEG C；No. two single screw extrusion machines are divided into 9 working regions, the first seven individual and the 9th working area by feed end
The temperature in territory is set as 185 DEG C, and the temperature of the 8th working region is set as 205 DEG C；During extrusion moulding described squeeze
The top board temperature of molding machine is 100 DEG C, and lower platen temperature is 100 DEG C.
The polystyrene heat-preservation extruded sheet of embodiment 3: kind EPS sheet, including following component:
In parts by weight, wherein granules of polystyrene is polystyrene virgin material, polystyrene reclaimed materials and polyphenyl second to each component
Alkene waste material mixing composition, mixed proportion is 1.5:2:1.5.
The preparation method of the polystyrene heat-preservation extruded sheet of the class EPS sheet of the present embodiment, comprises the steps:
(1) mixing granulation after polystyrene reclaimed materials and waste polystyrene being reclaimed, adds jointly with polystyrene virgin material
Enter in batch mixer, then in batch mixer, add benzoyl peroxide butyl ester, dodecylbenzene sodium sulfonate and benzoyl peroxide,
Starting batch mixer mixed material, and mixed material is heated to 180 DEG C, insulated and stirred shuts down cooling after 3 hours；
(2) in batch mixer, alkenyl succinic acid ester, zinc dialkyl dithiophosphate and mercapto benzimidazole are added, then
Secondary startup batch mixer mixed material, and it is heated to 190 DEG C, insulated and stirred was shut down after 1.2 hours, was cooled down by mixed material
To 60 DEG C, again add 4-methylvaleric acid sodium, ammonium benzoate continuation stirring 1～2 hour；
(3) sending into pelletize in comminutor after the mixed material cooling that will obtain in step (2), pelletize will obtain after completing
Granule cooling after send in the feeding chamber of extruding machine, start extruding machine, melt extrude, and synchronize to inject in extruding machine
Foaming agent, carries out extrusion moulding；Described extruding machine is divided into a double screw extruder and No. two single screw extrusion machines；Wherein,
A number double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region is set as successively
185℃、190℃、190℃、195℃、230℃、200℃、200℃、200℃、230℃、230℃、200℃
With 200 DEG C；No. two single screw extrusion machines are divided into 9 working regions, the first seven individual and the 9th working area by feed end
The temperature in territory is set as 180 DEG C, and the temperature of the 8th working region is set as 200 DEG C；During extrusion moulding described squeeze
The top board temperature of molding machine is 80 DEG C, and lower platen temperature is 80 DEG C.
The embodiment of the present invention 1～3 product is 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
Restriction to the present invention self.Under the spirit and scope of the present invention premise defined without departing from claims, can be right
Various changes can be made in the form and details for it.
Claims (7)
1. the polystyrene heat-preservation extruded sheet of a kind EPS sheet, it is characterised in that include following component:
In parts by weight, wherein granules of polystyrene is polystyrene virgin material, polystyrene reclaimed materials and polyphenyl second to each component
Alkene waste material mixing composition, mixed proportion is 1.5:2:1.5.
The polystyrene heat-preservation extruded sheet of class EPS sheet the most according to claim 1, it is characterised in that include as
Lower component:
3. a preparation method for the polystyrene heat-preservation extruded sheet of the class EPS sheet described in claim 1, its feature exists
In, comprise the steps:
(1) mixing granulation after polystyrene reclaimed materials and waste polystyrene being reclaimed, adds jointly with polystyrene virgin material
Enter in batch mixer, then in batch mixer, add benzoyl peroxide butyl ester, dodecylbenzene sodium sulfonate and benzoyl peroxide,
Start batch mixer mixed material, and mixed material is heated to 150～200 DEG C, insulated and stirred 2～shutdown cooling after 4 hours；
(2) in batch mixer, alkenyl succinic acid ester, zinc dialkyl dithiophosphate and mercapto benzimidazole are added, then
Secondary startup batch mixer mixed material, and it is heated to 180～200 DEG C, insulated and stirred 1～shutdown after 1.5 hours, by mixture
Material is cooled to 50～70 DEG C, again adds 4-methylvaleric acid sodium, ammonium benzoate continuation stirring 1～2 hour；
(3) sending into pelletize in comminutor after the mixed material cooling that will obtain in step (2), pelletize will obtain after completing
Granule cooling after send in the feeding chamber of extruding machine, start extruding machine, melt extrude, and synchronize to inject in extruding machine
Foaming agent, carries out extrusion moulding.
The preparation method of the polystyrene heat-preservation extruded sheet of class EPS sheet the most according to claim 3, its feature exists
In, extruding machine described in step (3) is divided into a double screw extruder and No. two single screw extrusion machines；Wherein, No. one
Double screw extruder is divided into 12 working regions, and by charging aperture, the temperature of each working region is set as successively
180～190 DEG C, 185～195 DEG C, 185～195 DEG C, 190～200 DEG C, 225～235 DEG C, 195～205 DEG C, 195～205 DEG C,
195～205 DEG C, 225～235 DEG C, 225～235 DEG C, 195～205 DEG C and 195～205 DEG C；No. two single screw extrusion machines are divided into
9 working regions, by feed end, the first seven is set as 175～185 DEG C with the temperature of the 9th working region, the 8th
The temperature of individual working region is set as 195～205 DEG C.
The preparation method of the polystyrene heat-preservation extruded sheet of class EPS sheet the most according to claim 4, its feature exists
In, the screw speed of a described double screw extruder is 150～220rpm, the screw speed of No. two single screw extrusion machines
Being 8～15rpm, the material mouth pressure of No. two single screw extrusion machines is 8～20MPa.
The preparation method of the polystyrene heat-preservation extruded sheet of class EPS sheet the most according to claim 4, its feature exists
In, foaming agent injects in the 6th working region of a described double screw extruder.
The preparation method of the polystyrene heat-preservation extruded sheet of class EPS sheet the most according to claim 3, its feature exists
In, in step (3), during extrusion moulding, the top board temperature of described extruding machine is 60～100 DEG C, and lower platen temperature is
60～100 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107573532A (en) * | 2017-09-26 | 2018-01-12 | 安徽斯威达建材科技有限公司 | A kind of processing technology for being incubated EPS sheet |
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