CN202990143U - Secondary foaming polyurethane sandwich panel - Google Patents
Secondary foaming polyurethane sandwich panel Download PDFInfo
- Publication number
- CN202990143U CN202990143U CN 201220755832 CN201220755832U CN202990143U CN 202990143 U CN202990143 U CN 202990143U CN 201220755832 CN201220755832 CN 201220755832 CN 201220755832 U CN201220755832 U CN 201220755832U CN 202990143 U CN202990143 U CN 202990143U
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- CN
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- Prior art keywords
- polyurethane
- foaming
- polyurethane foam
- panel
- foam layer
- 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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Abstract
The utility model discloses a secondary foaming polyurethane sandwich panel which is characterized by comprising the following preparation steps: coating a first polyurethane mixture layer on a lower panel (1), foaming the first polyurethane mixture layer to be a first polyurethane foam layer (2), then coating a second polyurethane mixture layer on the first polyurethane foam layer (2), and compounding the lower panel with an upper panel (4) in the process of foaming a second polyurethane foam layer (3). The secondary foaming polyurethane sandwich panel is characterized in that the lower panel (1) and the upper panel (4) are made of metal plates or polyvinyl chloride (PVC) panels or soft panels or glass fiber reinforced plastics panels. The secondary foaming polyurethane sandwich panel is characterized in that the first polyurethane foam layer (2) is freely foamed in the foaming process. Because the first polyurethane foam layer (2) is freely foamed in the foaming process, the flatness of the lower panel is not influenced; and moreover, when the second polyurethane mixture layer is coated, the first polyurethane foam layer is completely cured, and the surface flatness of the sandwich panel is guaranteed.
Description
(1) technical field
The utility model belongs to the energy saving building material technical field, particularly the second time of foaming polyurethane laminboard.
(2) background technology
Polyurethane laminboard is the energy-saving material that present building heat preservation is often selected, and its production technology is to be coated with the polyurethane compound on plate below, sends into the laminating machine curing molding in the process of compound foaming.
Due to the polyurethane compound be difficult to accomplish in coating process fully smooth, lower panel have temperature deviation everywhere, just caused polyurethane Density inhomogeneity everywhere in foaming, solidification process, the sandwich board surface of making has concavo-convex, out-of-flatness.
(3) summary of the invention
For solving the polyurethane laminboard surface irregularity problem that exists in background technology, the utility model provides a kind of second time of foaming polyurethane laminboard.
The second time of foaming polyurethane laminboard, it is characterized in that first being coated with first floor polyurethane compound on plate (1) below, after it is foamed into first floor polyurethane foam (2), be coated with again second layer polyurethane compound in the above, in the process that is foamed into second layer polyurethane foam (3) and top panel (4) compound.
The second time of foaming polyurethane laminboard is characterized in that lower panel (1), top panel (4) adopt sheet metal, or PVC sheet material, or the softpanel material, or reinforced plastic plate.
The second time of foaming polyurethane laminboard is characterized in that first floor polyurethane foam (2) is free foaming in the process of foaming.
Because first floor polyurethane foam (2) is free foaming, do not affect the planeness of lower panel in the process of foaming.And second layer polyurethane compound coating time, the first floor polyurethane foam has been completed curing, so the surface finish of sandwiched plate is guaranteed.
(4) description of drawings
Fig. 1 is the structural representation of second time of foaming polyurethane laminboard.
The explanation of signal number in the figure:
1 lower panel 2 first floor polyurethane foams
3 second layer polyurethane foam 4 top panels
(5) specific embodiment
1, lower panel (1) moulding;
2, plate (1) upward is coated with the polyurethane compound below, and free foaming forms first floor polyurethane foam (2);
3, at the upper coating of first floor polyurethane foam (2) second layer polyurethane compound, compound with in type top panel (4) in the process of foaming;
4, send into laminating machine and complete the curing of second layer polyurethane foam (3), moulding.
Claims (3)
1. second time of foaming polyurethane laminboard, it is characterized in that first being coated with first floor polyurethane compound on plate (1) below, after it is foamed into first floor polyurethane foam (2), be coated with again second layer polyurethane compound in the above, in the process that is foamed into second layer polyurethane foam (3) and top panel (4) compound.
2. second time of foaming polyurethane laminboard according to claim 1, is characterized in that lower panel (1), top panel (4) adopt sheet metal, or PVC sheet material, or the softpanel material, or reinforced plastic plate.
3. second time of foaming polyurethane laminboard according to claim 1, is characterized in that first floor polyurethane foam (2) is free foaming in the process of foaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220755832 CN202990143U (en) | 2012-12-28 | 2012-12-28 | Secondary foaming polyurethane sandwich panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220755832 CN202990143U (en) | 2012-12-28 | 2012-12-28 | Secondary foaming polyurethane sandwich panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202990143U true CN202990143U (en) | 2013-06-12 |
Family
ID=48561336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220755832 Expired - Fee Related CN202990143U (en) | 2012-12-28 | 2012-12-28 | Secondary foaming polyurethane sandwich panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202990143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622139A (en) * | 2020-12-04 | 2021-04-09 | 太仓市帷幄包装材料有限公司 | Compound EPS foam insulation can of high strength |
-
2012
- 2012-12-28 CN CN 201220755832 patent/CN202990143U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622139A (en) * | 2020-12-04 | 2021-04-09 | 太仓市帷幄包装材料有限公司 | Compound EPS foam insulation can of high strength |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130612 Termination date: 20131228 |