CN106079492A - A kind of polypropylene and politef double layer anticorrosive board making technique - Google Patents
A kind of polypropylene and politef double layer anticorrosive board making technique Download PDFInfo
- Publication number
- CN106079492A CN106079492A CN201610440628.2A CN201610440628A CN106079492A CN 106079492 A CN106079492 A CN 106079492A CN 201610440628 A CN201610440628 A CN 201610440628A CN 106079492 A CN106079492 A CN 106079492A
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- Prior art keywords
- politef
- polypropylene
- split
- mould
- goods
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a kind of polypropylene and politef double layer anticorrosive board making technique, comprise the steps: that PP sheet material must be prepared, PP is molded, PP dryness finalization, PP material is put into extruder, PP carries out demoulding process, select PTFE resin, PTFE powder is uniformly added in mould, sintering sizing, take off fire to process and cooling, polytetrafluoroethylproducts products after cooling uses rolling to process, polytetrafluoroethylproducts products split is an entirety, two ends carry out cutting process, plate surface carries out deburring process, split goods are crimped, finished product detects, one polypropylene of the present invention and politef double layer anticorrosive board making technique, technical flow design is reasonable, processing sheet material combination forming is convenient, disclosure satisfy that the requirement of the corrosion industries such as acid-fast alkali-proof.
Description
Technical field
The present invention relates to field of plastic products, particularly relate to a kind of polypropylene and politef double layer anticorrosive sheet material system
Make technique.
Background technology
At petrochemical industry, anticorrosion sheet material typically uses PP material to make, and PP material is polypropylene, and polypropylene has very
Good chemical stability, it is possible to the high temperature of resistance to 110-120 DEG C, and it is capable of withstanding soda acid solvent, but polypropylene also has a lot
Defect, in the case of cold tolerance is low, and temperature is low, intensity is low.To this end, at some deep-etching pipelines, poly-four can be used
Fluorothene is as liner, and PTFE is exactly modal politef fluoroplastics, and fluoroplastics are that part or all of hydrogen is replaced by fluorine
Alkane polymer, politef trade name " Teflon " " 4F ", fusing point is about 631 DEG C, PTFE have excellence resistance to
Chemicals, PTFE shock strength is high, but hot strength, wearability, creep resistance are poor than other engineering plastics, and traditional prevents
Rotten sheet material is all to use single plate construction, and double sheets combines processing difficulties, to this end, the invention provides a kind of poly-
Propylene and politef double layer anticorrosive board making technique, technical flow design is reasonable, processes simple and convenient.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of polypropylene and politef double layer anticorrosive board making
Technique, Design Processing is reasonable, and sheet material anti-corrosion function and rigidity after combination are greatly improved.
Described a kind of polypropylene and politef double layer anticorrosive board making technique, comprise the steps:
The first step: PP preparation of plates, selects PP resin particle, adds carbon fiber, boron nitride, graphite, and add in PP granule
Enter coupling agent, stir.
Second step: PP is molded, and selects injection machine and custom mold, and injection machine selects syllogic injection machine, by PP granule
In injection machine, melt into liquid, use screw rod to promote, be connected to mould at screw front end, according to the shape of polypropylene board
Size, makes and article workpiece shape, the coadapted mould of size.
3rd step: PP dryness finalization, uses oven for drying, obtains drying composite, the mixed material sizing made.
4th step: PP material is put into extruder, extruder adds presses mixed raw material entrance mould in advance
System, prefabricating oil cylinder pressure is 5-10MPA, and temperature is maintained at 40 to 50 degrees Celsius, forms good sheet material mold base.
5th step: PP carries out demoulding process, and the sheet material after the demoulding uses traction machine stretching, is stretched as cuboid block structure.
6th step: select PTFE resin, suspension polymerization resin selected by PTFE resin raw material, and particle diameter is 20-500 micron,
And adding bronze powder pellet, and carry out process of sieving, a kind of optimal technical scheme, sieve selection 200 mesh sieves.
7th step: be uniformly added in mould by PTFE powder, adds at normal temperatures and is pressed into closely knit blank, selects rational mould
Tool, the bolster temperature of mould is at 200 degrees Celsius, and a kind of optimal technical scheme, selection preforming pressure is 17-35 MPa.
8th step: sintering sizing, the pre-shaped articles in the 7th step, is heated to more than fusing point, and sintering uses sintering furnace,
When sintering, programming rate uses 80-120 DEG C/h, then, arrives 400 celsius temperatures, keeps temperature 5 minutes.
9th step: take off fire and process and cooling, drop to the process of room temperature from sintering temperature.
Tenth step: the polytetrafluoroethylproducts products after cooling uses rolling to process, and selects unidirectional rolling, is carried out by rotating roller
Processing, the calendering multiplying power made controls in the range of 1.5-2.5.
11st step: be an entirety the PP sheet material in the 5th step and the polytetrafluoroethylproducts products split in the tenth step,
How adding-the tetrahydrofuran solution of sodium complex at ptfe surface, the PP sheet material made and politef are bonded at one
Rising, and carry out secondary rolled process, use calender that goods are carried out secondary rolled, the goods made are uniform.
12nd step: the goods two ends after split carry out cutting process so that termination is smooth neatly.
13rd step: split goods carry out surface process, carries out deburring process plate surface.
14th step: split goods are crimped, is processed into cylindrical structure form, it is simple to the use of the sheet materials such as pipeline.
15th step: arrange connector at split goods two ends, and arrange binding rope nested structure, split is an entirety knot
Structure.
16th step: finished product detects, is subsequently processed into anti-corrosion pipeline plate construction.
The invention has the beneficial effects as follows: one polypropylene of the present invention and politef double layer anticorrosive board making technique,
Technical flow design is reasonable, and processing sheet material combination forming is convenient, it is possible to meet the goods requirement of the corrosion industries such as acid-fast alkali-proof.
Detailed description of the invention
It is described in detail below in conjunction with to presently preferred embodiments of the present invention, so that advantages and features of the invention can be more easy to
In being readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
The embodiment of the present invention includes:
Described a kind of polypropylene and politef double layer anticorrosive board making technique, comprise the steps:
The first step: PP preparation of plates, selects PP resin particle, adds carbon fiber, boron nitride, graphite, and add in PP granule
Enter coupling agent, stir.
Second step: PP is molded, and selects injection machine and custom mold, and injection machine selects syllogic injection machine, by PP granule
In injection machine, melt into liquid, use screw rod to promote, be connected to mould at screw front end, according to the shape of polypropylene board
Size, makes and article workpiece shape, the coadapted mould of size.
3rd step: PP dryness finalization, uses oven for drying, obtains drying composite, the mixed material sizing made.
4th step: PP material is put into extruder, extruder adds presses mixed raw material entrance mould in advance
System, prefabricating oil cylinder pressure is 5-10MPA, and temperature is maintained at 40 to 50 degrees Celsius, forms good sheet material mold base.
5th step: PP carries out demoulding process, and the sheet material after the demoulding uses traction machine stretching, is stretched as cuboid block structure.
6th step: select PTFE resin, suspension polymerization resin selected by PTFE resin raw material, and particle diameter is 20-500 micron,
And adding bronze powder pellet, and carry out process of sieving, a kind of optimal technical scheme, sieve selection 200 mesh sieves.
7th step: be uniformly added in mould by PTFE powder, adds at normal temperatures and is pressed into closely knit blank, selects rational mould
Tool, the bolster temperature of mould is at 200 degrees Celsius, and a kind of optimal technical scheme, selection preforming pressure is 17-35 MPa.
8th step: sintering sizing, the pre-shaped articles in the 7th step, is heated to more than fusing point, and sintering uses sintering furnace,
When sintering, programming rate uses 80-120 DEG C/h, then, arrives 400 celsius temperatures, keeps temperature 5 minutes.
9th step: take off fire and process and cooling, drop to the process of room temperature from sintering temperature.
Tenth step: the polytetrafluoroethylproducts products after cooling uses rolling to process, and selects unidirectional rolling, is carried out by rotating roller
Processing so that calendering multiplying power controls in the range of 1.5-2.5.
11st step: be an entirety the PP sheet material in the 5th step and the polytetrafluoroethylproducts products split in the tenth step,
-the tetrahydrofuran solution of sodium complex how is added so that PP sheet material and politef are bonded at one at ptfe surface
Rise, and carry out secondary rolled process, use calender that goods are carried out secondary rolled so that goods are uniform.
12nd step: the goods two ends after split carry out cutting process so that termination is smooth neatly.
13rd step: split goods carry out surface process, carries out deburring process plate surface.
14th step: split goods are crimped, is processed into cylindrical structure form, it is simple to the use of the sheet materials such as pipeline.
15th step: arrange connector at split goods two ends, and arrange binding rope nested structure, split is an entirety knot
Structure.
16th step: finished product detects, is subsequently processed into anti-corrosion pipeline plate construction.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology necks
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (3)
1. a polypropylene and politef double layer anticorrosive board making technique, it is characterised in that comprise the steps:
The first step: PP preparation of plates, selects PP resin particle, adds carbon fiber, boron nitride, graphite, and add in PP granule
Enter coupling agent, stir；
Second step: PP is molded, and selects injection machine and custom mold, and injection machine selects syllogic injection machine, by PP granule at note
Melting into liquid in molding machine, use screw rod to promote, be connected to mould at screw front end, the shape according to polypropylene board is big
Little, make and article workpiece shape, the coadapted mould of size；
3rd step: PP dryness finalization, uses oven for drying, obtains drying composite, the mixed material sizing made；
4th step: PP material is put into extruder, extruder adds to be suppressed mixed raw material entrance mould, in advance in advance
Compressing cylinder pressure is 5-10MPA, and temperature is maintained at 40 to 50 degrees Celsius, forms good sheet material mold base；
5th step: PP carries out demoulding process, and the sheet material after the demoulding uses traction machine stretching, is stretched as cuboid block structure；
6th step: select PTFE resin, suspension polymerization resin selected by PTFE resin raw material, and particle diameter is 20-500 micron, and
Add bronze powder pellet, and carry out process of sieving；
7th step: be uniformly added in mould by PTFE powder, adds at normal temperatures and is pressed into closely knit blank, selects rational mould,
The bolster temperature of mould is at 200 degrees Celsius；
8th step: sintering sizing, the pre-shaped articles in the 7th step, is heated to more than fusing point, and sintering uses sintering furnace, sintering
Time, programming rate uses 80-120 DEG C/h, then, arrives 400 celsius temperatures, keeps temperature 5 minutes；
9th step: take off fire and process and cooling, drop to the process of room temperature from sintering temperature；
Tenth step: the polytetrafluoroethylproducts products after cooling uses rolling to process, and selects unidirectional rolling, is added by rotating roller
Work, the calendering multiplying power made controls in the range of 1.5-2.5；
11st step: be an entirety the PP sheet material in the 5th step and the polytetrafluoroethylproducts products split in the tenth step, poly-
How tetrafluoroethene surface add-tetrahydrofuran solution of sodium complex, and the PP sheet material made and politef stick together, and
And carry out secondary rolled process, and use calender that goods are carried out secondary rolled, the goods made are uniform；
12nd step: the goods two ends after split carry out cutting process so that termination is smooth neatly；
13rd step: split goods carry out surface process, carries out deburring process plate surface；
14th step: split goods are crimped, is processed into cylindrical structure form, it is simple to the use of the sheet materials such as pipeline；
15th step: arrange connector at split goods two ends, and arrange binding rope nested structure, split is an overall structure；
16th step: finished product detects, is subsequently processed into anti-corrosion pipeline plate construction.
A kind of polypropylene the most according to claim 1 and politef double layer anticorrosive board making technique, its feature exists
In, in the 6th described step, sieve selection 200 mesh sieves.
A kind of polypropylene the most according to claim 1 and politef double layer anticorrosive board making technique, its feature exists
In, in the 7th described step, select preforming pressure to be 17-35 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440628.2A CN106079492A (en) | 2016-06-20 | 2016-06-20 | A kind of polypropylene and politef double layer anticorrosive board making technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440628.2A CN106079492A (en) | 2016-06-20 | 2016-06-20 | A kind of polypropylene and politef double layer anticorrosive board making technique |
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| Publication Number | Publication Date |
|---|---|
| CN106079492A true CN106079492A (en) | 2016-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610440628.2A Pending CN106079492A (en) | 2016-06-20 | 2016-06-20 | A kind of polypropylene and politef double layer anticorrosive board making technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113043635A (en) * | 2021-03-11 | 2021-06-29 | 江苏源一工程科技有限公司 | Acid-resistant and alkali-resistant composite pipeline |
| CN113561577A (en) * | 2021-06-30 | 2021-10-29 | 上海毅知实业股份有限公司 | ECTFE and FRP composite board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120752Y (en) * | 2007-09-25 | 2008-09-24 | 刘志强 | Environment protection four-precaution composite panel |
| CN102518879A (en) * | 2011-12-30 | 2012-06-27 | 上海长园电子材料有限公司 | Double-layered composite pipe, manufacturing method thereof and manufacturing equipment |
| CN102942756A (en) * | 2012-10-31 | 2013-02-27 | 中昊晨光化工研究院有限公司 | Pressure-bearing wear-resistant material prepared from modified teflon resin |
| CN105273372A (en) * | 2015-11-18 | 2016-01-27 | 东莞市万江明冠实业有限公司 | Macromolecule heat conduction and dissipation blended composite material and automatic preparation method |
-
2016
- 2016-06-20 CN CN201610440628.2A patent/CN106079492A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120752Y (en) * | 2007-09-25 | 2008-09-24 | 刘志强 | Environment protection four-precaution composite panel |
| CN102518879A (en) * | 2011-12-30 | 2012-06-27 | 上海长园电子材料有限公司 | Double-layered composite pipe, manufacturing method thereof and manufacturing equipment |
| CN102942756A (en) * | 2012-10-31 | 2013-02-27 | 中昊晨光化工研究院有限公司 | Pressure-bearing wear-resistant material prepared from modified teflon resin |
| CN105273372A (en) * | 2015-11-18 | 2016-01-27 | 东莞市万江明冠实业有限公司 | Macromolecule heat conduction and dissipation blended composite material and automatic preparation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113043635A (en) * | 2021-03-11 | 2021-06-29 | 江苏源一工程科技有限公司 | Acid-resistant and alkali-resistant composite pipeline |
| CN113561577A (en) * | 2021-06-30 | 2021-10-29 | 上海毅知实业股份有限公司 | ECTFE and FRP composite board |
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Application publication date: 20161109 |