CN109177109A - A kind of extrusion molding board production technology - Google Patents
A kind of extrusion molding board production technology Download PDFInfo
- Publication number
- CN109177109A CN109177109A CN201811004724.8A CN201811004724A CN109177109A CN 109177109 A CN109177109 A CN 109177109A CN 201811004724 A CN201811004724 A CN 201811004724A CN 109177109 A CN109177109 A CN 109177109A
- Authority
- CN
- China
- Prior art keywords
- alcohol
- ignitable
- extrusion molding
- extruder
- board production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
- B29K2025/04—Polymers of styrene
- B29K2025/06—PS, i.e. polystyrene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The embodiment of the invention discloses a kind of extrusion molding board production technologies, the present invention is proportionally added to methylene chloride for ethyl alcohol, there is addition fire retardant less the extruded sheet produced, easily reach the B1 rank of national standard, cost is reduced very much, product is not easy to shrink, stability is good, all achieve the effect that the extruded sheet of different addition ethyl alcohol is not accomplished from product compression strength and inner cell sophistication, it the use of the benefit of this non-ignitable alcohol is exactly simultaneously to reduce or prevent alcohol incendive characteristic when participating in extruded sheet and foaming, generally it will accomplish B1 grades or B2 grades by national standard production extruded sheet, ethyl alcohol one is generally combined in application CO 2 technology foaming to reinstate, this will make a big impact to the anti-flammability of product, it is greatly increased with the amount of addition hexabromocyclododecane flame retardant, audio quality mark Quasi- and cost and excessive use fire retardant pollution.
Description
Technical field
The present invention relates to chemical technology field more particularly to a kind of extrusion molding board production technologies.
Background technique
Polystyrene foam plastics is divided into two kinds of dilatancy EPS and continuity extrusion type XPS, compared with EPS sheet material, XPS
Plate is the hard foamed thermal insulation material of the third generation, and there is the production technology that it overcomes EPS sheet many and diverse from technique EPS sheet can not replace
The superior function in generation.It is to possess continuous uniform surface layer through what extrusion process produced by polystyrene resin and other additives
And the plate of closed pore formula honeycomb, the slab of these honeycombs are not in gap completely, the guarantor of this closed pore formula structure
Adiabator can have different pressure (150-500Kpa) while possess the thermal coefficient (only 0.028W/M.K) of same low value
With unfailing excellent heat preservation and compressive property, compression strength is applied in production up to 220-500Kpa, existing extruded sheet
Conventional foaming agents be freon or carbon dioxide with ethyl alcohol because applying ethyl alcohol is easy burning, even if being added to fire-retardant
Agent can also greatly increase additive amount, can greatly improve cost, and ethyl alcohol makes the receipts of extruded sheet for non-ignitable ethyl alcohol
Contracting can also increase.
Summary of the invention
The embodiment of the invention provides a kind of extrusion molding board production technologies, include the following steps:
Step A: the non-ignitable alcohol prepared by a certain percentage is filled into fluid reservoir；
Step B: the non-ignitable alcohol and carbon dioxide are passed through into plunger pump respectively and are injected into the two-part extruder
First segment extruder middle section inlet, after non-ignitable alcohol and carbon dioxide reach the machine bucket inside of first segment extruder, and
And merged with polystyrene, by the mixing of first segment extruder, forms mixed material and reach second segment extruder；
Step C: by the machine bucket internal mix of second segment extruder, mixed material reaches dynamic mixer and is mixed again
After conjunction, after the temperature of mixed material is reduced to 80 DEG C to 130 DEG C, discharge through mold.
Optionally, the non-ignitable alcohol includes ethyl alcohol and methylene chloride；
Wherein, the mass ratio of ethyl alcohol and methylene chloride is 1:2.
Optionally, the preparation method of the non-ignitable alcohol are as follows: first inject 1 part of ethyl alcohol in preparing tank, be then added 2 part two
Chloromethanes is mixed, and continuous backflow stirs 10 minutes, obtains non-ignitable alcohol.
Optionally, the temperature when preparation of the non-ignitable alcohol is 23 DEG C.
It optionally, further include step D, the step D includes:
Mixed material successively needs to carry out pressure forming, cooling and shaping, cuts, eventually form after the mould discharging
Extruded sheet.
Optionally, the first segment extruder is double screw extruder；The second segment extruder is single screw extrusion machine.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
The embodiment of the invention provides a kind of extrusion molding board production technologies, are proportionally added to methylene chloride for ethyl alcohol,
Specific formula is ethyl alcohol and methylene chloride, has addition fire retardant less the extruded sheet produced, it is easy to reach national mark
Quasi- B1 rank, reduces much cost, product is not easy to shrink, and stability is good, thin from product compression strength and inner cell
Greasy degree all achievees the effect that the extruded sheet of different addition ethyl alcohol is not accomplished, while the use of the benefit of this non-ignitable alcohol being exactly to reduce
Or alcohol incendive characteristic when participating in extruded sheet foaming is prevented, generally it will accomplish B1 by national standard production extruded sheet
Grade or B2 grade, will generally be combined with ethyl alcohol one and reinstate, this will be to the fire-retardant of product when application CO 2 technology foams
Property make a big impact, and the amount of addition hexabromocyclododecane flame retardant greatly increases, audio quality standard and cost and mistake
Use the pollution of fire retardant more.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of flow chart of the extrusion molding board production technology provided in the embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of extrusion molding board production technology, include the following steps: step A: by a certain percentage
The non-ignitable alcohol prepared is filled into fluid reservoir；
Step B: the non-ignitable alcohol and carbon dioxide are passed through into plunger pump respectively and are injected into the two-part extruder
First segment extruder middle section inlet, after non-ignitable alcohol and carbon dioxide reach the machine bucket inside of first segment extruder, and
And merged with polystyrene, by the mixing of first segment extruder, forms mixed material and reach second segment extruder；
Step C: by the machine bucket internal mix of second segment extruder, mixed material reaches dynamic mixer and is mixed again
After conjunction, after the temperature of mixed material is reduced to 80 DEG C, discharge through mold.
Preferably, the non-ignitable alcohol includes ethyl alcohol and methylene chloride；
Wherein, the mass ratio of ethyl alcohol and methylene chloride is 1:2.
Preferably, the preparation method of the non-ignitable alcohol are as follows: first inject 1 part of ethyl alcohol in preparing tank, be then added 2 part two
Chloromethanes is mixed, and continuous backflow stirs 10 minutes, obtains non-ignitable alcohol.
Preferably, the temperature when preparation of the non-ignitable alcohol is 23 DEG C.
It preferably, further include step D, the step D includes:
Mixed material successively needs to carry out pressure forming, cooling and shaping, cuts, eventually form after the mould discharging
Extruded sheet.
It should be noted that pressure forming: it needs that the material just come out from mold is carried out pressing molding by clamping plate machine,
It can also use clamping plate machine that mixed material is carried out to the adjustment of thickness.
Cooling and shaping: after pressing molding, the higher mixed material of temperature need to be carried out shaping through overcooled mode, cold
But mode may include cooling water cooling etc..
Cut: the mixed material after sizing has been changed to extruded sheet, and last cut machine is cut out according to preset size
It cuts, after cut, so that it may which discharging enters market completely.
Preferably, the first segment extruder is double screw extruder；The second segment extruder is single screw extrusion machine.
It should be noted that need to first open second segment extruder after opening two-part extruder, then opens first segment and squeeze
Machine out.
Embodiment 2
As shown in Figure 1, the present invention provides a kind of extrusion molding board production technology, include the following steps: step A: by a certain percentage
The non-ignitable alcohol prepared is filled into fluid reservoir；
Step B: the non-ignitable alcohol and carbon dioxide are passed through into plunger pump respectively and are injected into the two-part extruder
First segment extruder middle section inlet, after non-ignitable alcohol and carbon dioxide reach the machine bucket inside of first segment extruder, and
And merged with polystyrene, by the mixing of first segment extruder, forms mixed material and reach second segment extruder；
Step C: by the machine bucket internal mix of second segment extruder, mixed material reaches dynamic mixer and is mixed again
After conjunction, after the temperature of mixed material is reduced to 100 DEG C, discharge through mold.
Preferably, the non-ignitable alcohol includes ethyl alcohol and methylene chloride；
Wherein, the mass ratio of ethyl alcohol and methylene chloride is 1:2.
Preferably, the preparation method of the non-ignitable alcohol are as follows: first inject 1 part of ethyl alcohol in preparing tank, be then added 2 part two
Chloromethanes is mixed, and continuous backflow stirs 10 minutes, obtains non-ignitable alcohol.
Preferably, the temperature when preparation of the non-ignitable alcohol is 23 DEG C.
It preferably, further include step D, the step D includes:
Mixed material successively needs to carry out pressure forming, cooling and shaping, cuts, eventually form after the mould discharging
Extruded sheet.
Preferably, the first segment extruder is double screw extruder；The second segment extruder is single screw extrusion machine.
Embodiment 3
As shown in Figure 1, the present invention provides a kind of extrusion molding board production technology, include the following steps: step A: by a certain percentage
The non-ignitable alcohol prepared is filled into fluid reservoir；
Step B: the non-ignitable alcohol and carbon dioxide are passed through into plunger pump respectively and are injected into the two-part extruder
First segment extruder middle section inlet, after non-ignitable alcohol and carbon dioxide reach the machine bucket inside of first segment extruder, and
And merged with polystyrene, by the mixing of first segment extruder, forms mixed material and reach second segment extruder；
Step C: by the machine bucket internal mix of second segment extruder, mixed material reaches dynamic mixer and is mixed again
After conjunction, after the temperature of mixed material is reduced to 120 DEG C, discharge through mold.
Preferably, the non-ignitable alcohol includes ethyl alcohol and methylene chloride；
Wherein, the mass ratio of ethyl alcohol and methylene chloride is 1:2.
Preferably, the preparation method of the non-ignitable alcohol are as follows: first inject 1 part of ethyl alcohol in preparing tank, be then added 2 part two
Chloromethanes is mixed, and continuous backflow stirs 10 minutes, obtains non-ignitable alcohol.
Preferably, the temperature when preparation of the non-ignitable alcohol is 23 DEG C.
It preferably, further include step D, the step D includes:
Mixed material successively needs to carry out pressure forming, cooling and shaping, cuts, eventually form after the mould discharging
Extruded sheet.
Preferably, the first segment extruder is double screw extruder；The second segment extruder is single screw extrusion machine.
Based on above-mentioned, it is an advantage of the current invention that being proportionally added to methylene chloride for ethyl alcohol, specific formula three is divided
One of ethyl alcohol match 2/3rds methylene chloride, to the extruded sheet produced have addition fire retardant it is less, it is easy to reach
The B1 rank of national standard reduces much cost, and product is not easy to shrink, and stability is good, from product compression strength and inside
Abscess sophistication all achievees the effect that the extruded sheet of different addition ethyl alcohol is not accomplished, while just using the benefit of this non-ignitable alcohol
It is to reduce or prevent alcohol incendive characteristic when participating in extruded sheet foaming, it generally will by national standard production extruded sheet
Accomplish B1 grades or B2 grades, to be generally combined with ethyl alcohol one in application CO 2 technology foaming and reinstate, this will be to product
Anti-flammability make a big impact, and addition hexabromocyclododecane flame retardant amount greatly increase, audio quality standard and cost,
And the pollution of excessive use fire retardant.
A kind of extrusion molding board production technology provided by the present invention is described in detail above, for the general of this field
Technical staff, thought according to an embodiment of the present invention, there will be changes in the specific implementation manner and application range, to sum up
Described, the contents of this specification are not to be construed as limiting the invention.
Claims (6)
1. a kind of extrusion molding board production technology, which comprises the steps of:
Step A: the non-ignitable alcohol prepared by a certain percentage is filled into fluid reservoir；
Step B: the non-ignitable alcohol and carbon dioxide are passed through into that plunger pump is injected into the two-part extruder respectively
After the middle section inlet of one section of extruder, non-ignitable alcohol and carbon dioxide reach the machine bucket inside of first segment extruder, and with
Polystyrene is merged, and by the mixing of first segment extruder, is formed mixed material and is reached second segment extruder；
Step C: by the machine bucket internal mix of second segment extruder, mixed material reaches dynamic mixer and is mixed again
Afterwards, it after the temperature of mixed material being reduced to 80 DEG C to 130 DEG C, discharges through mold.
2. extrusion molding board production technology according to claim 1, which is characterized in that the non-ignitable alcohol includes ethyl alcohol and dichloro
Methane；
Wherein, the mass ratio of ethyl alcohol and methylene chloride is 1:2.
3. extrusion molding board production technology according to claim 2, which is characterized in that the preparation method of the non-ignitable alcohol are as follows:
1 part of ethyl alcohol is first injected in preparing tank, 2 parts of methylene chloride are then added and are mixed, and continuous backflow stirs 10 minutes, obtains not
Fire alcohol.
4. extrusion molding board production technology according to claim 3, which is characterized in that the temperature when preparation of the non-ignitable alcohol
It is 23 DEG C.
5. extrusion molding board production technology according to claim 1, which is characterized in that further include step D, the step D includes:
Mixed material successively needs to carry out pressure forming, cooling and shaping, cuts, eventually form extrusion molding after the mould discharging
Plate.
6. extrusion molding board production technology according to claim 1, which is characterized in that the first segment extruder squeezes for twin-screw
Machine out；The second segment extruder is single screw extrusion machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004724.8A CN109177109A (en) | 2018-08-30 | 2018-08-30 | A kind of extrusion molding board production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811004724.8A CN109177109A (en) | 2018-08-30 | 2018-08-30 | A kind of extrusion molding board production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109177109A true CN109177109A (en) | 2019-01-11 |
Family
ID=64917036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811004724.8A Pending CN109177109A (en) | 2018-08-30 | 2018-08-30 | A kind of extrusion molding board production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109177109A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111890651A (en) * | 2020-08-25 | 2020-11-06 | 东莞市兆盈建材有限公司 | Novel dynamic mixer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059118A (en) * | 1991-07-17 | 1992-03-04 | 武汉工业大学 | The modelling foam products made from waste polystyrene foam method |
| CN1333797A (en) * | 1998-12-04 | 2002-01-30 | 陶氏化学公司 | Foams having increased heat distortion temperature made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered alphatic or cycloaliphatic or |
| US20030162852A1 (en) * | 1998-12-04 | 2003-08-28 | Chaudhary Bharat I. | Acoustical insulation foams |
| CN101890782A (en) * | 2010-07-02 | 2010-11-24 | 南京法宁格节能科技有限公司 | Method for producing polystyrene extruded sheet with compressive strength larger than 700 kPa |
| CN102161774A (en) * | 2011-01-26 | 2011-08-24 | 南京法宁格节能科技有限公司 | Method for producing polystyrene extruded sheets by using carbon dioxide foaming agent |
-
2018
- 2018-08-30 CN CN201811004724.8A patent/CN109177109A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059118A (en) * | 1991-07-17 | 1992-03-04 | 武汉工业大学 | The modelling foam products made from waste polystyrene foam method |
| CN1333797A (en) * | 1998-12-04 | 2002-01-30 | 陶氏化学公司 | Foams having increased heat distortion temperature made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered alphatic or cycloaliphatic or |
| US20030162852A1 (en) * | 1998-12-04 | 2003-08-28 | Chaudhary Bharat I. | Acoustical insulation foams |
| CN101890782A (en) * | 2010-07-02 | 2010-11-24 | 南京法宁格节能科技有限公司 | Method for producing polystyrene extruded sheet with compressive strength larger than 700 kPa |
| CN102161774A (en) * | 2011-01-26 | 2011-08-24 | 南京法宁格节能科技有限公司 | Method for producing polystyrene extruded sheets by using carbon dioxide foaming agent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111890651A (en) * | 2020-08-25 | 2020-11-06 | 东莞市兆盈建材有限公司 | Novel dynamic mixer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190111 |