CN203110447U - High temperature vacuum composite film - Google Patents
High temperature vacuum composite film Download PDFInfo
- Publication number
- CN203110447U CN203110447U CN 201320087208 CN201320087208U CN203110447U CN 203110447 U CN203110447 U CN 203110447U CN 201320087208 CN201320087208 CN 201320087208 CN 201320087208 U CN201320087208 U CN 201320087208U CN 203110447 U CN203110447 U CN 203110447U
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- layer
- composite film
- composite membrane
- temperature vacuum
- vacuum
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- Expired - Lifetime
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a high temperature vacuum composite film which comprises multilayer films. The high temperature vacuum composite film is characterized in that a PA (Poly A) layer I, a bonding layer, a PP (Propene Polymer) layer, a bonding layer and a PA layer II are arranged in sequence from the top to the bottom; and the composite film is produced through extrusion forming by a five-layer co-extruder. The composite film has the advantages that at the environmental temperature of 0 to 180 DEG C, the composite film cannot be melted and shrunk; and the effects of separating air and maintaining vacuum can still be achieved.
Description
Technical field
The utility model relates to a kind of vacuum bag film, particularly indeformable, the not run-down vacuum composite membrane of a kind of high temperature, and this composite membrane is applied to composite material process planning, particularly the application on relevant war products and Aerospace Products.
Background technology
The vacuum bag film of producing under the prior art condition, its main component are the PE(polyethylene) and the PA(polyamide), because the hear resistance of PE is not high, influenced by this composition inherent characteristic, cause vacuum bag film fusing point low.Yet because of resin properties, as a child resin was when reaching exothermic peak generally to finish 1.5-2 in perfusion in the solidification process of numerous composite material process plannings, and the beginning heat release causes temperature sharply to be increased to about 170 degree.Easily the vacuum bag film is scalded and melt or modification, cause vacuum gas leakage, distortion status occurs, finally cause whole composite material forming not realize.In Aeronautics and Astronautics and the strictness of some war products degree temperature requirement itself, the environment temperature height of formed product is added the resin heat release, and is therefore higher to the heat-resisting requirement of vacuum bag film simultaneously.At this moment need a kind of new product, replace the conventional vacuum bag film, it requires its serviceability temperature and fusing point higher on the basis of original vacuum bag film properties, to satisfy the needs of present stage composite material preparation process.
Summary of the invention
The utility model provides a kind of high-temperature vacuum composite membrane, and purpose is to solve the prior art problem, provides a kind of indeformable under hot environment, not run-down, can keep the vacuum bag film of vacuum state operate as normal.
The utility model technical scheme that adopts of dealing with problems is:
The high-temperature vacuum composite membrane is made of multilayer film, is provided with PA layer one, adhesive layer one, PP layer, adhesive layer two, PA layer two from top to bottom successively.
The integral thickness of high-temperature vacuum composite membrane is 0.03mm-0.1mm.
The high-temperature vacuum composite membrane improves from composition of raw materials and structure, changes traditional PE, PA, PE structure, produces the NEW TYPE OF COMPOSITE film of being made up of PA, PP, PA.
The melting temperature of the outer PA layer of high-temperature vacuum composite membrane is 220 degree, and intermediate layer PP melting temperature is 170 degree, can normally use under the environment of 180 degree through the composite membrane after the co-extrusion.
The beneficial effects of the utility model: substitute original PE with PP among the application, and change traditional PE, PA, PE structure, form new PA, PP, PA structure.By introducing the PP materials that melting temperature can reach 170 degree, the PP material is placed the centre of two-layer PA layer, form composite membrane through co-extrusion equipment.This composite membrane can normally use under the environment of 180 degree, and is indeformable at high temperature, not run-down, continuing to keep composite membrane to hang down permeability, high-intensity while, really realizes the resistant to elevated temperatures characteristics of composite membrane again, to satisfy the moulding needs of various high-end products.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure: 1.PA layer one, 2. adhesive layer one, 3.PP layer, 4. adhesive layer two, 5.PA layer two.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
High-temperature vacuum composite membrane as shown in fig. 1, be provided with PA layer 1, adhesive layer 1, PP layer 3, adhesive layer 22, PA layer 25 from top to bottom successively, totally five layers, to produce through five-layer co-squeezing machine extrusion modling manufacturing, the thickness of whole composite membrane is 0.03mm-0.1mm.
Polyamide (polyamide, abbreviation PA), be that molecular backbone is the polymer that contains the amide groups of many repetitions, this family macromolecule polymer, be commonly called as nylon (Nylon), present stage, the kind of polyamide film mainly is nylon 6, nylon 66, nylon 11, nylon 12, copolymer nylon and the poly-aryl nylon of exploitation recently.Compare advantage such as that polyamide has is wear-resisting, tough, drug-resistant, heat-resisting, cold-resistant, easy-formation, self-lubricating, nontoxic, easy dyeing with general plastics.Polyamide at first for the synthesis of fiber, secondly has been used for plastic products since coming out, its physical and mechanical property is good, and effect is good, is the product of general engineering plastic output maximum, plays film ability output then inferior to the PET polyester film.
The PP film is polypropylene screen, and thicker, more tough usually, tensile strength is higher, can be used for awning film, load-bearing packaging bag etc.
High-temperature vacuum composite membrane in the invention improves from composition of raw materials and structure, replaces original PE film with the PP film, and changes traditional PE, PA, PE structure, adopts the new construction of being made up of PA, PP, PA.Wherein the melting temperature of the outer PA layer of high-temperature vacuum composite membrane is 220 degree, and intermediate layer PP melting temperature is 170 degree, therefore can normally use under the environment of 180 degree through the composite membrane after the co-extrusion, has improved the resistance to elevated temperatures of composite membrane greatly.Through evidence, reach in 0-180 ℃ in environment temperature, this high-temperature vacuum composite membrane can not deform or be run-down, still can reach the obstruct air, keeps the effect of vacuum, effectively guarantees the use under the hot environment.Vacuum environment under composite membrane covers can keep vacuum state constant in 24 hours.
Claims (2)
1. the high-temperature vacuum composite membrane is made of multilayer film, it is characterized in that: be provided with PA layer one, adhesive layer one, PP layer, adhesive layer two, PA layer two from top to bottom successively.
2. high-temperature vacuum composite membrane described in claim 1, it is characterized in that: the integral thickness of high-temperature vacuum composite membrane is 0.03mm-0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087208 CN203110447U (en) | 2013-02-26 | 2013-02-26 | High temperature vacuum composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087208 CN203110447U (en) | 2013-02-26 | 2013-02-26 | High temperature vacuum composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203110447U true CN203110447U (en) | 2013-08-07 |
Family
ID=48890824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320087208 Expired - Lifetime CN203110447U (en) | 2013-02-26 | 2013-02-26 | High temperature vacuum composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203110447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107984815A (en) * | 2017-11-24 | 2018-05-04 | 厦门长塑实业有限公司 | A kind of method for bonding polypropylene film and polycaprolactam film |
-
2013
- 2013-02-26 CN CN 201320087208 patent/CN203110447U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107984815A (en) * | 2017-11-24 | 2018-05-04 | 厦门长塑实业有限公司 | A kind of method for bonding polypropylene film and polycaprolactam film |
| CN107984815B (en) * | 2017-11-24 | 2019-09-17 | 厦门长塑实业有限公司 | A method of bonding polypropylene film and polycaprolactam film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High temperature vacuum composite film Effective date of registration: 20131118 Granted publication date: 20130807 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing Economic Development Zone sub branch Pledgor: JIAXING YOUWEI COMPOSITE MATERIALS Co.,Ltd. Registration number: 2013330000010 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150916 Granted publication date: 20130807 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing Economic Development Zone sub branch Pledgor: JIAXING YOUWEI COMPOSITE MATERIALS Co.,Ltd. Registration number: 2013330000010 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161209 Address after: Jiaxing City, Zhejiang province 314003 huayua Road No. 1250 building 3 Patentee after: ZHEJIANG YOUWEI NEW MATERIALS CO.,LTD. Address before: 313201 Zhejiang city of Jiaxing Province, South Road intersection, Huayu Patentee before: JIAXING YOUWEI COMPOSITE MATERIALS Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314003 No. 1250 Huayu Road, Jiaxing Economic and Technological Development Zone, Zhejiang Province Patentee after: ZHEJIANG YOUWEI NEW MATERIALS Co.,Ltd. Address before: 314003 No. 1250 Huayu Road, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG YOUWEI NEW MATERIALS CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |