CN107283979A - high temperature resistant composite membrane - Google Patents
high temperature resistant composite membrane Download PDFInfo
- Publication number
- CN107283979A CN107283979A CN201610219640.0A CN201610219640A CN107283979A CN 107283979 A CN107283979 A CN 107283979A CN 201610219640 A CN201610219640 A CN 201610219640A CN 107283979 A CN107283979 A CN 107283979A
- Authority
- CN
- China
- Prior art keywords
- density
- low
- layer
- outer layer
- internal 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.)
- Pending
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 6
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
Landscapes
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of high temperature resistant composite membrane, it includes high density low pressure outer layer and low-density high-pressure internal layer, thermal insulation layer is provided between the high density low pressure outer layer and low-density high-pressure internal layer, they constitute compound membrane body, and the thickness ratio between the high density low pressure outer layer, thermal insulation layer and low-density high-pressure internal layer exists（2-3）：5：（2-3）, the high density low pressure outer layer and low-density high-pressure internal layer are all HDPE and LLDPE mixed layer.The present invention can bear 120 DEG C of high temperature above, high sealing, good toughness.
Description
Technical field
The present invention relates to a kind of composite membrane, and in particular to a kind of high temperature resistant composite membrane.
Background technology
Packaging bag compared with small woven bag, with capacity it is big, be easy to load and unload, saves labour, raising efficiency the features such as.At present, general packaging bag is formed by PP woven cloths or the sewing of PE woven cloths, and part packaging bag is made of composite membrane, and its resistance to elevated temperatures is all undesirable.
The content of the invention
Goal of the invention：The invention aims to overcome deficiency of the prior art there is provided one kind can bear 120 DEG C of high temperature above, high sealing, the composite membrane of good toughness.
Technical scheme：In order to solve the above-mentioned technical problem, high temperature resistant composite membrane of the present invention, it includes high density low pressure outer layer and low-density high-pressure internal layer, thermal insulation layer is provided between the high density low pressure outer layer and low-density high-pressure internal layer, they constitute compound membrane body, and the thickness ratio between the high density low pressure outer layer, thermal insulation layer and low-density high-pressure internal layer exists（2-3）：5：（2-3）, the high density low pressure outer layer and low-density high-pressure internal layer are all HDPE and LLDPE mixed layer.
Thickness ratio between the high density low pressure outer layer, thermal insulation layer and low-density high-pressure internal layer is 2：5：3.
Thickness ratio between the high density low pressure outer layer, thermal insulation layer and low-density high-pressure internal layer is 3：5：2.
The high temperature resistant scope of the compound membrane body is between 125-130 DEG C.
Beneficial effect：Compared with prior art, its remarkable advantage is the present invention：The present invention use thickness ratio for（2-3）：5：（2-3）High density low pressure outer layer, thermal insulation layer and the compound membrane body of low-density high-pressure internal layer composition, it can bear 125-130 DEG C of high temperature, and high density low pressure outer layer and low-density high-pressure internal layer are all HDPE and LLDPE mixed layer, it is ensured that product high sealing, good toughness.
Brief description of the drawings
Fig. 1 is the hierarchical structure schematic diagram of the present invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, high temperature resistant composite membrane of the present invention, it includes high density low pressure outer layer 1 and low-density high-pressure internal layer 2, thermal insulation layer 3 is provided between the high density low pressure outer layer 1 and low-density high-pressure internal layer 2, they constitute compound membrane body, and the thickness ratio between the high density low pressure outer layer 1, thermal insulation layer 3 and low-density high-pressure internal layer 2 exists（2-3）：5：（2-3）, the high density low pressure outer layer 1 and low-density high-pressure internal layer 2 are all HDPE and LLDPE mixed layer；Thickness ratio between the high density low pressure outer layer 1, thermal insulation layer 3 and low-density high-pressure internal layer 2 is 2：5：3；Thickness ratio between the high density low pressure outer layer 1, thermal insulation layer 3 and low-density high-pressure internal layer 2 is 3：5：2；The high temperature resistant scope of the compound membrane body is between 125-130 DEG C.The present invention use thickness ratio for（2-3）：5：（2-3）High density low pressure outer layer, thermal insulation layer and the compound membrane body of low-density high-pressure internal layer composition, it can bear 125-130 DEG C of high temperature, and high density low pressure outer layer and low-density high-pressure internal layer are all HDPE and LLDPE mixed layer, it is ensured that product high sealing, good toughness.
The invention provides a kind of thinking and method; the method and approach for implementing the technical scheme are a lot; described above is only the preferred embodiment of the present invention; it should be understood that; for those skilled in the art, under the premise without departing from the principles of the invention, some improvements and modifications can also be made; each part that these improvements and modifications also should be regarded as being not known in protection scope of the present invention, the present embodiment can use prior art to be realized.
Claims (4)
1. high temperature resistant composite membrane, it is characterised in that：It includes high density low pressure outer layer（1）With low-density high-pressure internal layer（2）, in the high density low pressure outer layer（1）With low-density high-pressure internal layer（2）Between be provided with thermal insulation layer（3）, they constitute compound membrane body, the high density low pressure outer layer（1）, thermal insulation layer（3）With low-density high-pressure internal layer（2）Between thickness ratio exist（2-3）：5：（2-3）, the high density low pressure outer layer（1）With low-density high-pressure internal layer（2）All it is HDPE and LLDPE mixed layer.
2. high temperature resistant composite membrane according to claim 1, it is characterised in that：The high density low pressure outer layer（1）, thermal insulation layer（3）With low-density high-pressure internal layer（2）Between thickness ratio be 2：5：3.
3. high temperature resistant composite membrane according to claim 1, it is characterised in that：The high density low pressure outer layer（1）, thermal insulation layer（3）With low-density high-pressure internal layer（2）Between thickness ratio be 3：5：2.
4. high temperature resistant composite membrane according to claim 1, it is characterised in that：The high temperature resistant scope of the compound membrane body is between 125-130 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219640.0A CN107283979A (en) | 2016-04-11 | 2016-04-11 | high temperature resistant composite membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219640.0A CN107283979A (en) | 2016-04-11 | 2016-04-11 | high temperature resistant composite membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107283979A true CN107283979A (en) | 2017-10-24 |
Family
ID=60095799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610219640.0A Pending CN107283979A (en) | 2016-04-11 | 2016-04-11 | high temperature resistant composite membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107283979A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016000A (en) * | 2014-05-30 | 2014-09-03 | 安徽美翔塑业有限公司 | Plastic packaging film |
| CN104691071A (en) * | 2015-02-11 | 2015-06-10 | 广东南海星格新型包装材料有限公司 | Puncture-resistant packaging film and preparation method thereof |
-
2016
- 2016-04-11 CN CN201610219640.0A patent/CN107283979A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016000A (en) * | 2014-05-30 | 2014-09-03 | 安徽美翔塑业有限公司 | Plastic packaging film |
| CN104691071A (en) * | 2015-02-11 | 2015-06-10 | 广东南海星格新型包装材料有限公司 | Puncture-resistant packaging film and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |
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| RJ01 | Rejection of invention patent application after publication |