CN204894695U - High resistant separates tectorial membrane sheet - Google Patents
High resistant separates tectorial membrane sheet Download PDFInfo
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- CN204894695U CN204894695U CN201520360686.5U CN201520360686U CN204894695U CN 204894695 U CN204894695 U CN 204894695U CN 201520360686 U CN201520360686 U CN 201520360686U CN 204894695 U CN204894695 U CN 204894695U
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- leftover pieces
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The utility model provides a high resistant separates tectorial membrane sheet which characterized in that: from the top down separates thin layer, adhesive layer, three -layer crowded sheet altogether for the high resistant in proper order, the high resistant separates thin layer from the top down and includes superficial layer, PA layer, intermediate level, PA layer, superficial layer in proper order. Compared with the prior art, the beneficial effects of the utility model are that, owing to improve the original structure of sheet, consequently the remaining leftover bits of processing can reuse, produce, both effectual manufacturing cost that has reduced, furthest's has avoided the destruction of dumped leftover bits to the environment again.
Description
Technical field
The utility model relates to a kind of sheet material, more specifically to a kind of under the prerequisite of guaranteed performance, and the high-barrier laminated sheet that production cost significantly reduces.
Background technology
As shown in Figure 1, traditional EVOH composite sheet structures, is followed successively by superficial layer, adhesive phase, intermediate layer, adhesive phase, superficial layer from top to bottom.Wherein, superficial layer can select PS(Chinese for polystyrene), PP(Chinese is polypropylene) or PET(Chinese be PETG) material.Intermediate layer is EVOH(Chinese is ethylene-vinyl alcohol copolymer).
Because intermediate layer is that evoh layer thickness is at more than 0.08mm, both sides are by PA adhesive and the bonding of PP/PS common plastics, each PA adhesive phase thickness is also at more than 0.08mm, and that is traditional EVOH composite sheet structures intermediate layer and two PA adhesive phases altogether thickness are at least 0.24mm.Because EVOH and PA adhesive phase cost is higher than common plastic cost more than 5 times, therefore the high separative plastic sheet of same thickness is compared with common plastics, and cost increases a lot.
And due to said structure, the leftover pieces that sheet material is stayed after making plastic products cannot add middle again recovery of sheet material to and reproduce, cause great amount of cost to be wasted, and the price of plastic products is also very high, and discarded leftover pieces can to environment.
Utility model content
Technical problem to be solved in the utility model is that high for prior art production cost, discarded leftover pieces cannot reclaim and to reproduce and can to the shortcoming of environment; a kind of high-barrier laminated sheet is provided; this high-barrier laminated sheet is under the prerequisite of guaranteed performance; leftover pieces can be made full use of produce; effectively reduce production cost, and effective protection of the environment.The technical scheme adopted is as follows:
A kind of high-barrier laminated sheet, is characterized in that: be followed successively by high-isolation film layer, adhesive layer, three-layer co-extruded sheet material from top to bottom; Described high-isolation film layer comprises superficial layer, PA layer, intermediate layer, PA layer, superficial layer from top to bottom successively.
Preferably scheme, described superficial layer is PP or PE material, and described PA layer is PA material (PA Chinese is polyamide), and described intermediate layer is EVOH material.
Preferably scheme, described three-layer co-extruded sheet material comprises raw material layer, leftover pieces adding layers, raw material layer from top to bottom successively.
Preferably scheme, the material of described raw material layer is PP feed particles or PS feed particles.
Preferably scheme; the material of described leftover pieces adding layers comprises PP feed particles or PS feed particles, and (the two selects one; and identical with the material of raw material layer), and the leftover pieces that stay after making plastic products of high-barrier laminated sheet pulverize after the leftover pieces that obtain.Due to after the leftover pieces pulverizing that the cutting of high-barrier laminated sheet production plastic products is remaining, directly can add the intermediate layer of plastic sheet to, two-layer is up and down then virgin material, therefore neither affects product health quality, recyclablely again to reproduce, greatly reduce plastic products price.The product that the EVOH high barrier sheet processed like this is made reduces by more than 25% than original EVOH composite sheet price.
Preferably scheme, described adhesive layer is polyurethane adhesive.
The production method of above-mentioned this high-barrier laminated sheet comprises the following steps:
A, described PE feed particles, EVOH feed particles, PA feed particles co-extrusion are become high-isolation film layer;
B, the material of described raw material layer, leftover pieces are added feed particles co-extrusion and become three-layer co-extruded sheet material;
C, adhesive is adopted to be combined into high-barrier laminated sheet on described high-isolation film layer and three-layer co-extruded sheet material.
In described step a, described PE feed particles, EVOH feed particles, PA feed particles are adopted extruder five-layer co-squeezing, obtained high-isolation film layer.
In described step b, the material of leftover pieces adding layers comprises PP feed particles or PS feed particles; and the leftover pieces that stay after making plastic products of high-barrier laminated sheet pulverize after the leftover pieces that obtain; first both are mixed leftover pieces and add feed particles; then the material (PP feed particles or PS feed particles) described leftover pieces being added feed particles and raw material layer is three-layer co-extruded by extruder, obtained three-layer co-extruded sheet material.
High-isolation film layer described in described step c and three-layer co-extruded sheet material adopt PA adhesive to be combined into high-barrier laminated sheet by compounding machine.
The utility model beneficial effect is against existing technologies, owing to improving the original structure of sheet material, therefore process remaining leftover pieces again to utilize, produce, both effectively reduced production cost, avoid again the destruction of discarded leftover pieces to environment to greatest extent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model prior art traditional E VOH composite sheet;
Fig. 2 is the structural representation of the utility model preferred embodiment high-barrier laminated sheet.
Detailed description of the invention
As shown in Figure 2, high-barrier laminated sheet in this preferred embodiment, be followed successively by high-isolation film layer 4, adhesive layer 5, three-layer co-extruded sheet material from top to bottom, described high-isolation film layer 4 comprises superficial layer 1, PA layer 2, intermediate layer 3, PA layer 2, superficial layer 1 from top to bottom successively.
Described superficial layer is PP or PE material, and described PA layer is PA material (PA Chinese is polyamide), and described intermediate layer is EVOH material.
Described three-layer co-extruded sheet material comprises raw material layer 6, leftover pieces adding layers 7, raw material layer 8 from top to bottom successively.
The material of described raw material layer is PP feed particles.
The material of described leftover pieces adding layers comprises the leftover pieces, the PP feed particles that obtain after leftover pieces that high-barrier laminated sheet stays after making plastic products are pulverized.Due to after the leftover pieces pulverizing that the cutting of high-barrier laminated sheet production plastic products is remaining, directly can add the intermediate layer of plastic sheet to, two-layer is up and down then virgin material, therefore neither affects product health quality, recyclablely again to reproduce, greatly reduce plastic products price.The product that the EVOH high barrier sheet processed like this is made reduces by more than 20% than original EVOH composite sheet price.
Described adhesive layer is polyurethane adhesive.
The production method of above-mentioned high-barrier laminated sheet, comprises the following steps:
A, described PE feed particles, EVOH feed particles, PA feed particles co-extrusion are become high-isolation film layer;
B, the material of described raw material layer, leftover pieces are added feed particles co-extrusion and become three-layer co-extruded sheet material;
C, adhesive is adopted to be combined into high-barrier laminated sheet on described high-isolation film layer and three-layer co-extruded sheet material.
In described step a, described PE feed particles, EVOH feed particles, PA feed particles are adopted extruder five-layer co-squeezing, obtained high-isolation film layer.
In described step b, the material of leftover pieces adding layers comprises the leftover pieces, the PP feed particles that obtain after leftover pieces that high-barrier laminated sheet stays after making plastic products are pulverized, first both are mixed into leftover pieces and add feed particles, then the material (PP feed particles) described leftover pieces being added feed particles and raw material layer is three-layer co-extruded by extruder, obtained three-layer co-extruded sheet material.
High-isolation film layer described in described step c and three-layer co-extruded sheet material adopt PA adhesive to be combined into high-barrier laminated sheet by compounding machine.
Due to after the leftover pieces pulverizing that the cutting of high-barrier laminated sheet production plastic products is remaining, directly can add the leftover pieces adding layers of three-layer co-extruded sheet material to, two-layer is up and down then virgin material, therefore neither affects product health quality, recyclablely again to reproduce, greatly reduce plastic products price.
Such as produce the high-barrier laminated sheet identical with EVOH composite sheet thickness traditional in background technology, high-isolation film layer 4 thickness is 0.08mm, and superficial layer 1 thickness is that 0.02mm, PA layer 2 thickness is 0.01mm, intermediate layer 3 thickness is that 0.02mm, PA layer 2 thickness is 0.01mm, superficial layer 1 thickness is 0.02mm from top to bottom.The high-barrier laminated sheet processed like this, the product made reduces by more than 25% than traditional EVOH composite sheet price.
In addition; it should be noted that, the specific embodiment described in this description, its each several part title etc. can be different; all equivalences of doing according to structure, feature and the principle described in the utility model inventional idea or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (3)
1. a high-barrier laminated sheet, is characterized in that: be followed successively by high-isolation film layer, adhesive layer, three-layer co-extruded sheet material from top to bottom; Described high-isolation film layer comprises superficial layer, PA layer, intermediate layer, PA layer, superficial layer from top to bottom successively; Described superficial layer is PP or PE material, and described PA layer is PA material, and described intermediate layer is EVOH material; Described three-layer co-extruded sheet material comprises raw material layer, leftover pieces adding layers, raw material layer from top to bottom successively; The material of described raw material layer is PP feed particles or PS feed particles.
2. high-barrier laminated sheet as claimed in claim 1; it is characterized in that: the material of described leftover pieces adding layers comprises PP feed particles or PS feed particles, and the leftover pieces that stay after making plastic products of high-barrier laminated sheet pulverize after the leftover pieces that obtain.
3. high-barrier laminated sheet as claimed in claim 1, is characterized in that: described adhesive layer is polyurethane adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520360686.5U CN204894695U (en) | 2015-05-30 | 2015-05-30 | High resistant separates tectorial membrane sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520360686.5U CN204894695U (en) | 2015-05-30 | 2015-05-30 | High resistant separates tectorial membrane sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204894695U true CN204894695U (en) | 2015-12-23 |
Family
ID=54916904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520360686.5U Expired - Fee Related CN204894695U (en) | 2015-05-30 | 2015-05-30 | High resistant separates tectorial membrane sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204894695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890332A (en) * | 2015-05-30 | 2015-09-09 | 汕头市金品塑胶实业有限公司 | High-barrier coated sheet and production method thereof |
-
2015
- 2015-05-30 CN CN201520360686.5U patent/CN204894695U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890332A (en) * | 2015-05-30 | 2015-09-09 | 汕头市金品塑胶实业有限公司 | High-barrier coated sheet and production method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20200530 |