CN1278840C - Process for preparing polyethylene terephthalate panel - Google Patents
Process for preparing polyethylene terephthalate panel Download PDFInfo
- Publication number
- CN1278840C CN1278840C CN 200310111763 CN200310111763A CN1278840C CN 1278840 C CN1278840 C CN 1278840C CN 200310111763 CN200310111763 CN 200310111763 CN 200310111763 A CN200310111763 A CN 200310111763A CN 1278840 C CN1278840 C CN 1278840C
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- China
- Prior art keywords
- roller
- polyethylene terephthalate
- deliver
- calendar
- conveying
- 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.)
- Expired - Fee Related
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a production process of polyethylene terephthalate plates, which comprises the following steps: a, warming raw materials to 190 to 280 DEG C through an extruding machine to be conveyed to a three-roller plating press through a mould head; b, cooling to 20 to 65 DEG C through the three-roller plating press; c, warming to 60 to 100DEGC through the three-roller plating press to be smoothly pressed and leveled; d, conveying to a traction cutting machine through a conveying roller to be cut into a product. The present invention has the advantage of no roller banding and qualified PET plates can be produced.
Description
Affiliated technical field
The present invention relates to technical field of board processing, more specifically to the PETG plank stuff production technology.
Background technology
General sheet material (referring to PC plate or PMMA plate) production procedure is: as shown in Figure 1, all are processings on plastic plate production machine, this machine extruder 1, die head 2, three-roller calendar 3, conveying roller 4, traction cutting machine 5 are formed.Heat to 210-280 ℃ by extruder 1, deliver to three-roller calendar through die head 2 again, heat to 90-110 ℃, cool off 70-100 ℃ of press polish by three-roller calendar intermediate calender rolls 21 and top roller 22 again by three-roller calendar intermediate calender rolls 21 and following roller 23.Delivering to traction cutting machine 5 excision formings through conveying roller 4 again is product.The axis that its three pressure rollers, 21,22,23 diameters are generally 400～500cm and three rollers is in a plane, and the diameter of middle pressure roller 22 and all the other two pressure rollers are general big or greater than one of them of other two pressure rollers 21,23.
APET or title PET (PETG) sheet material good physical performance can replace the originally PMMA sheet material of low impact strength of expensive PC plate and high the eleventh of the twelve Earthly Branches.Because APET (PETG) raw material is different with PC plate and PMMA plate performance, when using existing plastic plate production machine to produce AEPT sheet material, PET can be through three-roller calendar the time, crystallization, roll banding appear, gloam or, cause physical property to reduce as far as possible by original saturating color clearly to becoming porcelain white.Its main cause is: the diameter of pressure roller is excessive, can't make it extensive at short notice as to heat.
Summary of the invention
Technical problem to be solved by this invention is to overcome with existing plastic plate production technology when processing PETG sheet material, cause occurring crystallization, roll banding, reduce the deficiency of PET physical property and a kind of PETG plank stuff production technology is provided.
Technology solution of the present invention is as follows:
Polyethylene terephthalate's plank stuff production technology,
A, raw material are heated to 190-280 ℃ by extruder, deliver to three-roller calendar by die head again;
B, again by three-roller calendar with being water-cooled to 20-65 ℃:
C, heat to 60-100 ℃ of press polish leveling by three-roller calendar again;
D, to deliver to traction cutting machine excision forming through conveying roller again be product
Outstanding effect of the present invention is:
1), roll banding not;
2), can produce qualified PET sheet material.
Description of drawings
Fig. 1 produces the schematic diagram of machine for plastic plate in the prior art of the present invention.
The specific embodiment
The PETG plank stuff production technology,
A, raw material are heated to 190-280 ℃ by extruder, deliver to three-roller calendar by die head again;
B, again by three-roller calendar intermediate calender rolls and following roller with being water-cooled to 20-65 ℃, the diameter of three pressure rollers of three-roller calendar is 250-400CM:
C, heat to 60-100 ℃ of press polish leveling by three-roller calendar intermediate calender rolls and top roller again;
D, to deliver to traction cutting machine excision forming through conveying roller again be product.
Claims (1)
1, PETG plank stuff production technology is characterized in that:
A, raw material are heated to 190-280 ℃ by extruder, deliver to three-roller calendar by die head again;
B, again by three-roller calendar with being water-cooled to 20-65 ℃;
C, heat to 60-100 ℃ of press polish leveling by three-roller calendar again;
D, to deliver to traction cutting machine excision forming through conveying roller again be product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310111763 CN1278840C (en) | 2003-10-14 | 2003-10-14 | Process for preparing polyethylene terephthalate panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310111763 CN1278840C (en) | 2003-10-14 | 2003-10-14 | Process for preparing polyethylene terephthalate panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1607083A CN1607083A (en) | 2005-04-20 |
| CN1278840C true CN1278840C (en) | 2006-10-11 |
Family
ID=34759447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310111763 Expired - Fee Related CN1278840C (en) | 2003-10-14 | 2003-10-14 | Process for preparing polyethylene terephthalate panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1278840C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8071695B2 (en) | 2004-11-12 | 2011-12-06 | Eastman Chemical Company | Polyeste blends with improved stress whitening for film and sheet applications |
| CN102555143B (en) * | 2011-11-17 | 2013-09-04 | 张家港市民扬塑胶科技有限公司 | Calendering shaping device for polyethylene glycol terephthalate (PET) nano reinforced plate production line |
| CN102501385A (en) * | 2011-11-17 | 2012-06-20 | 张家港市民扬塑胶科技有限公司 | Calendering sizing process for PET (polyethylene glycol terephthalate) nano reinforced plate |
| CN102975370A (en) * | 2012-11-12 | 2013-03-20 | 肇庆市峰明光电科技有限公司 | Production method and production device of optical composite sheet material |
-
2003
- 2003-10-14 CN CN 200310111763 patent/CN1278840C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1607083A (en) | 2005-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20091116 |