CN201520090U - Enhanced modified PVA high barrier composite film - Google Patents
Enhanced modified PVA high barrier composite film Download PDFInfo
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- CN201520090U CN201520090U CN2009202571280U CN200920257128U CN201520090U CN 201520090 U CN201520090 U CN 201520090U CN 2009202571280 U CN2009202571280 U CN 2009202571280U CN 200920257128 U CN200920257128 U CN 200920257128U CN 201520090 U CN201520090 U CN 201520090U
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- modified pva
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- intermediate layer
- mpe
- composite membrane
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Abstract
The utility model discloses an enhanced modified PVA high barrier composite film, in particular to packaging material for protection of weapons. The enhanced modified PVA high barrier composite film comprises an inner layer, an intermediate layer, an outer layer and an adhesive layer, wherein the intermediate layer made from a modified PVA high barrier coating has excellent oxygen barrier performance, the outer layer consisting of a PA/MPE/PA co-extruded film or a PA/PE co-extruded film has higher tension strength, puncture resistance and right-angle tearway force, and the inner layer consisting of MPE, PE or CPP has favorable steam obstruction performance. The enhanced modified PVA high barrier composite film has the characteristics of high oxygen barrier, high wet barrier and high mechanical strength, is transparent, resists ultraviolet radiation, and is suitable for storage and packaging of larger parts, spare parts and light whole machines such as printing plates or small-size cases.
Description
Technical field
The utility model belongs to packing technique, particularly a kind of enhancement mode high-barrier composite membrane that is used to pack weaponry.
Background technology
Aluminum-plastic composite membrane is high-grade at present sealing packaging material, and main effect is the wet and resistance oxygen of resistance, but this material is opaque, and right-angle tearing power is little, and endurable thorn intensity is low, and folding resistance is poor, poor in flexibility; Though the PVDC composite membrane has certain oxygen-barrier property and resistance is moist, mechanical strength is low, does not possess the function of ultraviolet radiation preventing; Though BOPA/PVA/MPE composite membrane, BOPP/PVA/MPE composite membrane and BOPET/PVA/MPE composite membrane have resistance oxygen and moisture barrier property, and ultraviolet radiation preventing, right-angle tearing power that should the series composite membrane is very little, and the endurable intensity of stinging is very low, poor in flexibility.Many composite membranes or possess barrier and the transparency, and do not possess high mechanical properties and anti-ultraviolet function; Possess barrier and anti-ultraviolet function, and do not possess the high mechanical strength and the transparency.
The utility model content
The purpose of this utility model is to provide a kind of and had both hindered oxygen, resistance is wet, has higher mechanical strength again, also possesses modified PVA (polyvinyl alcohol) composite membrane of the function of the transparency and antiultraviolet.
The technical solution that realizes the utility model purpose is: a kind of enhancement mode modified PVA high-barrier composite membrane, comprise internal layer, intermediate layer, skin and adhesive layer, internal layer is MPE, PE or CPP base material, skin is PA/MPE/PA co-extrusion film or PA/PE co-extrusion film, in the one side coating intermediate layer of internal layer, this intermediate layer is a modified PVA, polyurethane adhesive on skin, form adhesive layer, this adhesive layer and intermediate layer are compounded to form composite membrane.
The utility model compared with prior art, its remarkable advantage: (1) since the intermediate layer be water-fast modified PVA, highly hinder oxygen and ultraviolet radiation preventing function thereby have; (2) because skin is PA/MPE/PA co-extrusion film, PA/PE co-extrusion film, thereby have higher mechanical strength, work to strengthen hot strength, right-angle tearing power and the endurable thorn intensity of composite membrane; (3), thereby have moisture barrier property and heat sealability preferably because internal layer is MPE, PE, CPP; (4) thoroughly solved the difficult problem of high-barrier composite membrane combination property difference commonly used, not only have resistance oxygen and moisture barrier property, also have higher mechanical strength, and possess the transparency and anti-ultraviolet function, sealing up for safekeeping for printed product etc. provides the good combination property packaging material.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is a kind of enhancement mode modified PVA of the utility model high-barrier structure of composite membrane schematic diagram.
Fig. 2 is the another kind of enhancement mode modified PVA of a utility model high-barrier structure of composite membrane schematic diagram.
The specific embodiment
In conjunction with Fig. 1, the utility model enhancement mode modified PVA high-barrier composite membrane comprises internal layer 4, intermediate layer 3, skin 1 and adhesive layer 2, and internal layer 4 is MPE, PE or CPP base material, plays the wet and heat-sealing effect of resistance; Outer 1 is PA/MPE/PA co-extrusion film or PA/PE co-extrusion film, works to strengthen hot strength, right-angle tearing power and the endurable thorn intensity of composite membrane; In the one side coating intermediate layer 3 of internal layer 4, this intermediate layer 3 is a modified PVA,, play the effect of resistance oxygen; Polyurethane adhesive on outer 1 forms adhesive layer 2, and this adhesive layer 2 is compounded to form composite membrane with intermediate layer 3.Wherein, outer 1 thickness can be 0.02～0.1mm.The thickness in intermediate layer 3 can be 0.0005～0.003mm.The thickness of internal layer 4 can be 0.02～0.1mm.
Illustrate.Be to be coated with modified PVA on the MPE of 0.08mm at thickness, compound with the thick PA/MPE/PA co-extrusion film dry type of the last 0.05mm that crosses polyurethane adhesive then, form composite, this composite material resistance oxygen, moisture barrier property are good, the mechanical strength height, the transparency is good, has ultraviolet radiation preventing function, and the specific performance parameter is as shown in table 1.
Table 1 enhancement mode modified PVA high-barrier composite membrane performance parameter
In conjunction with Fig. 2, the utility model enhancement mode modified PVA high-barrier composite membrane comprises internal layer 4, intermediate layer 3, skin 1 and adhesive layer 2, and internal layer 4 is MPE, PE or CPP base material, plays the wet and heat-sealing effect of resistance; Outer 1 is PA/MPE/PA co-extrusion film or PA/PE co-extrusion film, works to strengthen hot strength, right-angle tearing power and the endurable thorn intensity of composite membrane; In outer 1 one side coating intermediate layer 3, this intermediate layer 3 is a modified PVA, plays the effect of resistance oxygen; Polyurethane adhesive on intermediate layer 3 forms adhesive layer 2, and this adhesive layer 2 is compounded to form composite membrane with internal layer 4.Wherein, outer 1 thickness can be 0.02～0.1mm.The thickness in intermediate layer 3 can be 0.0005～0.003mm.The thickness of internal layer 4 can be 0.02～0.1mm.
Illustrate.Be to be coated with modified PVA on the PA/MPE/PA co-extrusion film of 0.05mm at thickness, go up polyurethane adhesive then, MPE dry type last and that 0.08mm is thick is compound, form composite, this composite material resistance oxygen, moisture barrier property are good, the mechanical strength height, and the transparency is good, have ultraviolet radiation preventing function, the specific performance parameter is as shown in table 2.
Table 2 enhancement mode modified PVA high-barrier composite membrane performance parameter
Claims (5)
1. enhancement mode modified PVA high-barrier composite membrane, it is characterized in that comprising internal layer [4], intermediate layer [3], outer [1] and adhesive layer [2], internal layer [4] is MPE, PE or CPP base material, outer [1] is PA/MPE/PA co-extrusion film or PA/PE co-extrusion film, in the one side coating intermediate layer [3] of internal layer [4], this intermediate layer [3] are modified PVA, go up polyurethane adhesive in outer [1], form adhesive layer [2], this adhesive layer [2] is compounded to form composite membrane with intermediate layer [3].
2. enhancement mode modified PVA high-barrier composite membrane, it is characterized in that comprising internal layer [4], intermediate layer [3], outer [1] and adhesive layer [2], internal layer [4] is MPE, PE or CPP base material, outer [1] is PA/MPE/PA co-extrusion film or PA/PE co-extrusion film, in the one side coating intermediate layer [3] of outer [1], this intermediate layer [3] are modified PVA, and [3] go up polyurethane adhesive in the intermediate layer, form adhesive layer [2], this adhesive layer [2] is compounded to form composite membrane with internal layer [4].
3. enhancement mode modified PVA high-barrier composite membrane according to claim 1 and 2, the thickness that it is characterized in that skin [1] is 0.02～0.1mm.
4. enhancement mode modified PVA high-barrier composite membrane according to claim 1 and 2, it is characterized in that: the thickness of intermediate layer [3] is 0.0005～0.003mm.
5. enhancement mode modified PVA high-barrier composite membrane according to claim 1 and 2, it is characterized in that: the thickness of internal layer [4] is 0.02～0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202571280U CN201520090U (en) | 2009-11-04 | 2009-11-04 | Enhanced modified PVA high barrier composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202571280U CN201520090U (en) | 2009-11-04 | 2009-11-04 | Enhanced modified PVA high barrier composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520090U true CN201520090U (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202571280U Expired - Lifetime CN201520090U (en) | 2009-11-04 | 2009-11-04 | Enhanced modified PVA high barrier composite film |
Country Status (1)
| Country | Link |
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| CN (1) | CN201520090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108297461A (en) * | 2018-01-10 | 2018-07-20 | 合肥盛鼎包装材料有限公司 | A kind of production technology of PVA composite membranes |
| CN110843309A (en) * | 2019-12-09 | 2020-02-28 | 江阴升辉包装材料有限公司 | High-brightness composite sheet and preparation method thereof |
-
2009
- 2009-11-04 CN CN2009202571280U patent/CN201520090U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108297461A (en) * | 2018-01-10 | 2018-07-20 | 合肥盛鼎包装材料有限公司 | A kind of production technology of PVA composite membranes |
| CN110843309A (en) * | 2019-12-09 | 2020-02-28 | 江阴升辉包装材料有限公司 | High-brightness composite sheet and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |