CN203157239U - Air-permeability membrane - Google Patents
Air-permeability membrane Download PDFInfo
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- CN203157239U CN203157239U CN 201320125251 CN201320125251U CN203157239U CN 203157239 U CN203157239 U CN 203157239U CN 201320125251 CN201320125251 CN 201320125251 CN 201320125251 U CN201320125251 U CN 201320125251U CN 203157239 U CN203157239 U CN 203157239U
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- air
- permeability
- layer
- permeable layer
- atresia
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Abstract
The utility model relates to the technical field of waterproof air-permeability membranes, and particularly relates to an anti-microbial, air-proof, and antistatic air-permeability membrane with low price. The air-permeability membrane is characterized by comprising a hole-free air-permeability layer and a base layer, wherein the hole-free air-permeability layer and the base layer are combined into a whole through coextrusion; and the base layer is a holed air-permeability layer, and the holed air-permeability layer is a thermoplastic resin layer which can generate micropores after being slightly stretched. The air-permeability membrane provided by the utility model has good air-permeability effect, has anti-microbial, ai- proof, and antistatic functions and moreover has the advantages of low price and high cost performance.
Description
Technical field
The utility model relates to the waterproof ventilated membrane technical field, and particularly a kind of price is cheap, has the ventilated membrane of fungi-proofing, windproof and antistatic.
Background technology
Ventilated membrane can be used on outdoor fabrics, waterproof cloth, product next to the skin, infection control goods, electronic packaging goods, protective clothes goods, amenities and numerous other goods.At present, the ventilated membrane on the market is divided into two big classes: a kind of is porose ventilated membrane; Porose ventilated membrane is breathed freely by the hole, and price comparison is cheap, and shortcoming is fungi-proofing poor with protection effect, and static is big.The method of porose ventilated membrane waterproof and breathable comprises: vistanex mixed with the inorganic particles packing of some, and by this blend extrusion molding film; Heat then and this film that stretches, cause in the filler particles peripheral region and form the space, it allows vapour transmission but does not allow liquid to see through, and makes the polyolefin waterproof breathable membrane.Another kind is the atresia ventilated membrane; The atresia ventilated membrane is realized breathing freely by absorption, transmission and the diffusion to gas, has the advantage of fungi-proofing, windproof and antistatic, and shortcoming is that price comparison is expensive.
Summary of the invention
The purpose of this utility model is by multi-layer co-extruded technology, develops a kind of simple in structurely, and price is cheap, has the ventilated membrane of fungi-proofing, windproof and antistatic.
Concrete scheme of the present utility model is as follows: a kind of ventilated membrane, comprise atresia air-permeable layer and basic unit, it is characterized in that: it is one that atresia air-permeable layer and link base layer are crossed coextrusion compound, described porose air-permeable layer is the thermoplastic resin that produces micropore by little stretching, and described atresia air-permeable layer is made of the thermoplastic elastomer with hydrophilic-structure.
The hydrophilic-structure of described atresia air-permeable layer refers to have the thermoplastic elastomer (TPE) of polyether structure.
The beneficial effects of the utility model are as follows:
The beneficial effects of the utility model are: ventilated membrane of the present utility model adopts atresia air-permeable layer and basic unit's coextruded structure, by the thermoplastic elastomer with hydrophilic-structure as superficial layer, have characteristics fungi-proofing, antistatic, has excellent waterproofness simultaneously, basic unit adopts porose ventilated membrane, breathe freely good permeability by the hole.By with atresia air-permeable layer and basic unit's coextruded structure, the utility model has the high ventilation effect, and price is cheap simultaneously, and cost performance is higher.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is improvement structural representation of the present utility model.
Among the figure: 1-basic unit, 2-atresia air-permeable layer.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
As shown in Figure 1, a kind of ventilated membrane comprises atresia air-permeable layer 2 and basic unit 1, and atresia air-permeable layer 2 is positioned at basic unit 1 top, and atresia air-permeable layer 2 and basic unit 1 are compound by coextrusion to be one, and the atresia air-permeable layer is to carry layer by the thermoplastic elastic with hydrophilic-structure to be constituted.Basic unit 1 is porose air-permeable layer, and porose air-permeable layer is the thermoplastic resin that produces micropore by little stretching.
In the utility model, the hydrophilic-structure of atresia air-permeable layer refers to have the thermoplastic elastomer (TPE) of polyether structure; Further refer to have thermoplastic polyester elastomer or the TPUE of polyether structure.
As further improvement of the utility model, as shown in Figure 2, the utility model constitutes by three layers, comprise that two-layer atresia air-permeable layer 2 and the basic unit between two-layer atresia air-permeable layer 21 constitute, wherein the atresia air-permeable layer is made of the thermoplastic elastomer (TPE) with hydrophilic-structure, basic unit 1 is porose air-permeable layer, and porose air-permeable layer is the thermoplastic resin that produces micropore by little stretching.
Implementation method of the present utility model is:
With soft section be hard section of polyethers for terephthalate, hard section mass fraction is that 56% polyether ester thermoplastic elastomer is delivered to auxiliary extruder after drying, be that 2.0 μ m calcium carbonate and MI are that the 1:1 blending and modifying material of 2.0 metallocene linear polyethylene is delivered to main extruder with surface treated average grain diameter, be transported to the T pattern head of two-layer co-extrusion respectively behind the fusion plastification by runner, through behind the sharp cooling roll, stretch 3 times again at drawing zone, to obtain skin depth be 3 μ m in rolling then, and groundwork thickness is the finished product of 17 μ m.The Ya of Nai Shui of gained finished product ≧ 1000mmH2O, rate of perviousness (agar diffusion method) 21000g/m
224hr, the sheet resistance of polyester face is 2.3 * 10
10Ω has excellent waterproof, ventilative and antistatic property.
Ventilated membrane of the present utility model adopts atresia air-permeable layer and basic unit's coextruded structure, has the high ventilation effect, and price is cheap simultaneously, and cost performance is higher.
The above embodiment has only expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (3)
1. a ventilated membrane comprises atresia air-permeable layer and basic unit, it is characterized in that: it is one that atresia air-permeable layer and link base layer are crossed coextrusion compound, and described basic unit is porose air-permeable layer, and porose air-permeable layer is the thermoplastic resin that produces micropore by little stretching.
2. ventilated membrane according to claim 1, it is characterized in that: described atresia air-permeable layer is made of the thermoplastic elastomer with hydrophilic-structure.
3. ventilated membrane according to claim 1 is characterized in that: described porose air-permeable layer is made of fine inorganic particulate or organic filler and vistanex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125251 CN203157239U (en) | 2013-03-19 | 2013-03-19 | Air-permeability membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125251 CN203157239U (en) | 2013-03-19 | 2013-03-19 | Air-permeability membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203157239U true CN203157239U (en) | 2013-08-28 |
Family
ID=49018455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125251 Expired - Fee Related CN203157239U (en) | 2013-03-19 | 2013-03-19 | Air-permeability membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203157239U (en) |
-
2013
- 2013-03-19 CN CN 201320125251 patent/CN203157239U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |