CN104354423B - A kind of heat-resistance type double-sided adhesive conjunctiva and preparation method thereof - Google Patents
A kind of heat-resistance type double-sided adhesive conjunctiva and preparation method thereof Download PDFInfo
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- CN104354423B CN104354423B CN201410645612.6A CN201410645612A CN104354423B CN 104354423 B CN104354423 B CN 104354423B CN 201410645612 A CN201410645612 A CN 201410645612A CN 104354423 B CN104354423 B CN 104354423B
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- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- 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
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
Abstract
A kind of heat-resistance type double-sided adhesive conjunctiva, comprise the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two, five layers of described double-sided adhesive conjunctiva shaping by coextrusion film blowing, described intermediate layer is that homopolymerization nylon material forms whole double-sided adhesive conjunctiva supportive structure, described surface conjunction layer one and surface conjunction layer two are by comprising SEBS, the raw material of EVA and low density polyethylene (LDPE) is prepared from, described bonding enhancement Layer is as between surface conjunction layer one and intermediate layer, adhesive layer between surface conjunction layer two and intermediate layer, this bonding enhancement Layer is that PE/PA is in conjunction with material.Heat-resistance type double-sided adhesive conjunctiva of the present invention, obtained comprising the film layer structure of the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two by coextrusion film blowing, possess the intensity higher compared to prior art and better heat resistance.
Description
Technical field
The present invention relates to the processing preparing technical field of macromolecular material, particularly relate to a kind of heat-resistance type double-sided adhesive conjunctiva and preparation method thereof.
Background technology
At present, in prior art, the material of car roof, part interior trim is primarily of double-deck or three layers expanded material composition, and these foam materials can play the effects such as buffering, sound insulation.The bonding of these expanded materials, by a kind of double-sided adhesive conjunctiva of heat-resistance type by heating, part melting, cooling be glued together.
Specifically, double-sided adhesive conjunctiva mainly three-layer co-extruded structure conventional on market, A/B/C, wherein B layer is the high density polyethylene (HDPE) or the polypropylene material that play support film structure function, A and C layer is EVA material respectively, plays the effect of bonding.But this structure has obvious shortcoming, be mainly reflected in the unstable and temperature tolerance of cohesive force less than two aspects.Carefully analyze, its intermediate layer i.e. B layer are the high density polyethylene (HDPE) or the polypropylene material that play support film structure function, and high density polyethylene (HDPE) or polypropylene material exist the problem of the too low and insufficient strength of fusing point usually, therefore affect the whole heat resistance of double-sided adhesive conjunctiva and the intensity of final products.And A and the C layer playing bonding is all EVA material, although EVA self has lower fusing point, molten condition can be become combine with bonded foam material when high temperature, certain cementitiousness is provided, but only adopt EVA often to there is the inadequate problem of viscosity, whole double-sided adhesive conjunctiva can not be made to possess enough bonding stability, simultaneously because EVA material also exists the too low problem of fusing point, at a higher temperature, its bonding easily lost efficacy, be difficult to prepare double-sided adhesive conjunctiva that is high temperature resistant and guarantee adhesion strength, thus affect the performance of finished product.
In view of this, providing a kind of heat-resistance type double-sided adhesive conjunctiva and preparation method thereof, overcome the defect existed in prior art, is industry problem demanding prompt solution.
Summary of the invention
Based on above the deficiencies in the prior art, technical problem to be solved by this invention is to provide a kind of heat-resistance type double-sided adhesive conjunctiva, obtained comprising the double-sided adhesive conjunctiva of the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two by coextrusion film blowing, and its surface conjunction layer one and surface conjunction layer two are prepared from by the raw material comprising SEBS, EVA and low density polyethylene (LDPE) and make, thus whole double-sided adhesive conjunctiva is made to possess better adhesion strength and resistance to elevated temperatures; In addition, its intermediate layer adopts homopolymerization nylon material to form whole double-sided adhesive conjunctiva supportive structure, because it has the high density polyethylene (HDPE) that adopts compared to double-sided adhesive conjunctiva intermediate layer relevant in prior art or the higher fusing point of polypropylene material and intensity, thus whole heat-resistance type double-sided adhesive conjunctiva is made to possess higher intensity and heat resistance.In addition, due to the setting of bonding enhancement Layer, further enhance whole heat-resistance type double-sided adhesive conjunctiva bonding integraty and adhesion strength.
Technical problem to be solved by this invention is also the preparation method providing a kind of heat-resistance type double-sided adhesive conjunctiva, adopt five-layer co-squeezing multilayer packing membrane blow moulding machine, produce and carry out in clear production system, the obtained heat-resistance type double-sided adhesive conjunctiva of the present invention by the processing method of coextrusion film blowing.
In order to solve the problems of the technologies described above, the invention provides a kind of heat-resistance type double-sided adhesive conjunctiva that embodiment provides, comprise the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two, five layers of described double-sided adhesive conjunctiva shaping by coextrusion film blowing, described intermediate layer is that homopolymerization nylon material forms whole double-sided adhesive conjunctiva supportive structure, described surface conjunction layer one and surface conjunction layer two are by comprising SEBS, the raw material of EVA and low density polyethylene (LDPE) is prepared from, described bonding enhancement Layer is as between surface conjunction layer one and intermediate layer, adhesive layer between surface conjunction layer two and intermediate layer, this bonding enhancement Layer is that PE/PA is in conjunction with material.
Wherein, described surface conjunction layer one is prepared from by the composition that content is following:
SEBS25~30wt%，
EVA55~80wt%，
Low density polyethylene (LDPE) 5 ~ 15wt%;
The mass percent sum of each component is 100%.
Described surface conjunction layer one is prepared from by the composition that content is following:
SEBS25~30wt%，
EVA50~75wt%，
Low density polyethylene (LDPE) 5 ~ 15wt%;
The mass percent sum of each component is 100%.
The main component of surface conjunction layer one and surface conjunction layer two is different from double-sided adhesive conjunctiva adhesive layer of the prior art.In prior art, A and the C layer playing bonding is all EVA material, although EVA self has lower fusing point, molten condition can be become combine with bonded foam material when high temperature, certain cementitiousness is provided, but only adopt EVA often to there is the inadequate problem of viscosity, whole double-sided adhesive conjunctiva can not be made to possess enough bonding stability.And in the solution of the present invention, surface conjunction layer one and surface conjunction layer two are prepared from by the raw material comprising SEBS, EVA and low density polyethylene (LDPE) and make.Wherein, the fusing point that EVA self is lower, can become molten condition when high temperature and combine with bonded foam material, provide certain cementitiousness; And in surface conjunction layer one and surface conjunction layer two, be added into SEBS material, and SEBS take polystyrene as end segment, the ethylene-butene copolymer obtained with polybutadiene hydrogenation is the linear three embedding copolymers of middle spring block.The middle polybutadiene block of the SBS after hydrogenation has just changed into the random copolymerization section of ethene and 1-butylene and has become SEBS.SEBS containing unsaturated double-bond, does not therefore have good stability and resistance to ag(e)ing.The heat resistance of SEBS significantly improves, and serviceability temperature and processing temperature can reach 130 DEG C and 290 DEG C respectively, and SBS phase should be 65 DEG C and 200 DEG C of good weatherability, and after exposing experiment 3000h, strength retention is 95%; Electrical insulating property and miscibility also improve to some extent.Mainly utilize SEBS fusing point higher in the present invention, relatively stable molten condition can be had at high operating temperatures, A layer material melt strength is at high temperature promoted as supporting construction, A layer is avoided to be destroyed, on the other hand, rubber molecule in SEBS can provide stronger adhesion strength, solves the problem of the cohesive force instability that pure EVA material is brought.Thus make whole double-sided adhesive conjunctiva possess enough bonding stability, possess good heat resistance simultaneously.
Preferably, described surface conjunction layer one is prepared from by the composition that content is following:
SEBS20wt%，
EVA70wt%，
Low density polyethylene (LDPE) 10wt%.
Described surface conjunction layer two is prepared from by the composition that content is following:
SEBS30wt%，
EVA60wt%，
Low density polyethylene (LDPE) 10wt%.
It should be noted that, raw material used is all business-like macromolecular compounds.Wherein, the melt flow rate (MFR) of low density polyethylene (LDPE) is 18 ~ 25g/10min, and density is 0.92 ~ 0.926kg/m3.Low density polyethylene (LDPE) can be selected but be not limited to the LDPE-LD600BA of Exxon Mobil production.SEBS can select but be not limited to the SEBS-A1536H that production is risen by section of the U.S., and EVA can select but be not limited to the EVA-SWA130 of the production of SUMITOMO CHEMICAL chemistry.
Preferably, described intermediate layer is PA6 material.Intermediate layer adopts homopolymerization nylon material to form whole double-sided adhesive conjunctiva supportive structure, because it has the high density polyethylene (HDPE) that adopts compared to double-sided adhesive conjunctiva intermediate layer relevant in prior art or the higher fusing point of polypropylene material and intensity, thus whole heat-resistance type double-sided adhesive conjunctiva is made to possess higher intensity and heat resistance.PA6 can select but be not limited to the PA6-8267GHS of German BASF production.
Preferably, described bonding enhancement Layer is that PE/PA is in conjunction with material.Described bonding enhancement Layer is as the adhesive layer between surface conjunction layer one and intermediate layer, between surface conjunction layer two and intermediate layer.Bonding reinforcement ensures that the structure of at high temperature this five-layer co-squeezing there will not be the problem of disengaging, thus further enhances whole heat-resistance type double-sided adhesive conjunctiva bonding integraty and adhesion strength.PE/PA pellet can be selected but be not limited to the PE/PA-9041 of Daqing petrochemical production.
In order to ensure the quality of heat-resistance type double-sided adhesive conjunctiva, this heat-resistance type double-sided adhesive conjunctiva adopts coextrusion film blowing processing method to be prepared from, use five-layer co-squeezing multilayer packing membrane blow moulding machine, quality measurer is entered by feed bin, after raw material mixes by the compound bed die batching in claim 1-7 described in any one by quality measurer, the extruder that supply 5 different angles are put, deliver to after die head through draping mechanism and form film sandwich layer and ectonexine respectively, be blown into cooling-air by fan and film pipe is blown into film bubble, film bubble is after outer cooling vane and internal bubble cooling system cooling, after drafting system and corona processor process, enter wrap-up carry out rolling and cut, namely heat-resistance type double-sided adhesive conjunctiva is obtained.
Such scheme of the present invention obtains comprising the double-sided adhesive conjunctiva of the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two by coextrusion film blowing, and its surface conjunction layer one and surface conjunction layer two are prepared from by the raw material comprising SEBS, EVA and low density polyethylene (LDPE) and make, thus whole double-sided adhesive conjunctiva is made to possess better adhesion strength and resistance to elevated temperatures; In addition, its intermediate layer adopts homopolymerization nylon material to form whole double-sided adhesive conjunctiva supportive structure, because it has the high density polyethylene (HDPE) that adopts compared to double-sided adhesive conjunctiva intermediate layer relevant in prior art or the higher fusing point of polypropylene material and intensity, thus whole heat-resistance type double-sided adhesive conjunctiva is made to possess higher intensity and heat resistance.In addition, due to the setting of bonding enhancement Layer, further enhance whole heat-resistance type double-sided adhesive conjunctiva bonding integraty and adhesion strength.
Detailed description of the invention
Below in conjunction with preferred embodiment, feature of the present invention and advantage are described in further detail.Following embodiment is only exemplary, and those skilled in the art can make apparent amendment on this basis, and these amendments are also included within the scope of the invention.
A kind of heat-resistance type double-sided adhesive conjunctiva, obtained comprising the double-sided adhesive conjunctiva of the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two by coextrusion film blowing, and its surface conjunction layer one and surface conjunction layer two are prepared from by the raw material comprising SEBS, EVA and low density polyethylene (LDPE) and make, thus whole double-sided adhesive conjunctiva is made to possess better adhesion strength and resistance to elevated temperatures; In addition, its intermediate layer adopts homopolymerization nylon material to form whole double-sided adhesive conjunctiva supportive structure, because it has the high density polyethylene (HDPE) that adopts compared to double-sided adhesive conjunctiva intermediate layer relevant in prior art or the higher fusing point of polypropylene material and intensity, thus whole heat-resistance type double-sided adhesive conjunctiva is made to possess higher intensity and heat resistance.In addition, due to the setting of bonding enhancement Layer, further enhance whole heat-resistance type double-sided adhesive conjunctiva bonding integraty and adhesion strength.
Technical problem to be solved by this invention is also the preparation method providing a kind of heat-resistance type double-sided adhesive conjunctiva, adopt five-layer co-squeezing multilayer packing membrane blow moulding machine, produce and carry out in clear production system, the obtained heat-resistance type double-sided adhesive conjunctiva of the present invention by the processing method of coextrusion film blowing.
In order to solve the problems of the technologies described above, the invention provides a kind of heat-resistance type double-sided adhesive conjunctiva that embodiment provides, comprise the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two, five layers of described double-sided adhesive conjunctiva shaping by coextrusion film blowing, described intermediate layer is that homopolymerization nylon material forms whole double-sided adhesive conjunctiva supportive structure, described surface conjunction layer one and surface conjunction layer two are by comprising SEBS, the raw material of EVA and low density polyethylene (LDPE) is prepared from, described bonding enhancement Layer is as between surface conjunction layer one and intermediate layer, adhesive layer between surface conjunction layer two and intermediate layer, this bonding enhancement Layer is that PE/PA is in conjunction with material.
Wherein, described surface conjunction layer one is prepared from by the composition that content is following:
SEBS25~30wt%，
EVA55~80wt%，
Low density polyethylene (LDPE) 5 ~ 15wt%;
The mass percent sum of each component is 100%.
Described surface conjunction layer one is prepared from by the composition that content is following:
SEBS25~30wt%，
EVA50~75wt%，
Low density polyethylene (LDPE) 5 ~ 15wt%;
The mass percent sum of each component is 100%.
The main component of surface conjunction layer one and surface conjunction layer two is different from double-sided adhesive conjunctiva adhesive layer of the prior art.In prior art, A and the C layer playing bonding is all EVA material, although EVA self has lower fusing point, molten condition can be become combine with bonded foam material when high temperature, certain cementitiousness is provided, but only adopt EVA often to there is the inadequate problem of viscosity, whole double-sided adhesive conjunctiva can not be made to possess enough bonding stability.And in the solution of the present invention, surface conjunction layer one and surface conjunction layer two are prepared from by the raw material comprising SEBS, EVA and low density polyethylene (LDPE) and make.Wherein, the fusing point that EVA self is lower, can become molten condition when high temperature and combine with bonded foam material, provide certain cementitiousness; And in surface conjunction layer one and surface conjunction layer two, be added into SEBS material, and SEBS take polystyrene as end segment, the ethylene-butene copolymer obtained with polybutadiene hydrogenation is the linear three embedding copolymers of middle spring block.The middle polybutadiene block of the SBS after hydrogenation has just changed into the random copolymerization section of ethene and 1-butylene and has become SEBS.SEBS containing unsaturated double-bond, does not therefore have good stability and resistance to ag(e)ing.The heat resistance of SEBS significantly improves, and serviceability temperature and processing temperature can reach 130 DEG C and 290 DEG C respectively, and SBS phase should be 65 DEG C and 200 DEG C of good weatherability, and after exposing experiment 3000h, strength retention is 95%; Electrical insulating property and miscibility also improve to some extent.Mainly utilize SEBS fusing point higher in the present invention, relatively stable molten condition can be had at high operating temperatures, A layer material melt strength is at high temperature promoted as supporting construction, A layer is avoided to be destroyed, on the other hand, rubber molecule in SEBS can provide stronger adhesion strength, solves the problem of the cohesive force instability that pure EVA material is brought.Thus make whole double-sided adhesive conjunctiva possess enough bonding stability, possess good heat resistance simultaneously.
Preferably, described surface conjunction layer one is prepared from by the composition that content is following:
SEBS20wt%，
EVA70wt%，
Low density polyethylene (LDPE) 10wt%.
Described surface conjunction layer two is prepared from by the composition that content is following:
SEBS30wt%，
EVA60wt%，
Low density polyethylene (LDPE) 10wt%.
It should be noted that, raw material used is all business-like macromolecular compounds.Wherein, the melt flow rate (MFR) of low density polyethylene (LDPE) is 18 ~ 25g/10min, and density is 0.92 ~ 0.926kg/m3.Low density polyethylene (LDPE) can be selected but be not limited to the LDPE-LD600BA of Exxon Mobil production.SEBS can select but be not limited to the SEBS-A1536H that production is risen by section of the U.S., and EVA can select but be not limited to the EVA-SWA130 of the production of SUMITOMO CHEMICAL chemistry.
Preferably, described intermediate layer is PA6 material.Intermediate layer adopts homopolymerization nylon material to form whole double-sided adhesive conjunctiva supportive structure, because it has the high density polyethylene (HDPE) that adopts compared to double-sided adhesive conjunctiva intermediate layer relevant in prior art or the higher fusing point of polypropylene material and intensity, thus whole heat-resistance type double-sided adhesive conjunctiva is made to possess higher intensity and heat resistance.PA6 can select but be not limited to the PA6-8267GHS of German BASF production.
Preferably, described bonding enhancement Layer is that PE/PA is in conjunction with material.Described bonding enhancement Layer is as the adhesive layer between surface conjunction layer one and intermediate layer, between surface conjunction layer two and intermediate layer.Bonding reinforcement ensures that the structure of at high temperature this five-layer co-squeezing there will not be the problem of disengaging, thus further enhances whole heat-resistance type double-sided adhesive conjunctiva bonding integraty and adhesion strength.PE/PA pellet can be selected but be not limited to the PE/PA-9041 of Daqing petrochemical production.
In order to ensure the quality of heat-resistance type double-sided adhesive conjunctiva, this heat-resistance type double-sided adhesive conjunctiva adopts coextrusion film blowing processing method to be prepared from, use five-layer co-squeezing multilayer packing membrane blow moulding machine, quality measurer is entered by feed bin, after raw material mixes by the compound bed die batching in claim 1-7 described in any one by quality measurer, the extruder that supply 5 different angles are put, deliver to after die head through draping mechanism and form film sandwich layer and ectonexine respectively, be blown into cooling-air by fan and film pipe is blown into film bubble, film bubble is after outer cooling vane and internal bubble cooling system cooling, after drafting system and corona processor process, enter wrap-up carry out rolling and cut, namely heat-resistance type double-sided adhesive conjunctiva is obtained.
Such scheme of the present invention obtains comprising the double-sided adhesive conjunctiva of the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two by coextrusion film blowing, and its surface conjunction layer one and surface conjunction layer two are prepared from by the raw material comprising SEBS, EVA and low density polyethylene (LDPE) and make, thus whole double-sided adhesive conjunctiva is made to possess better adhesion strength and resistance to elevated temperatures; In addition, its intermediate layer adopts homopolymerization nylon material to form whole double-sided adhesive conjunctiva supportive structure, because it has the high density polyethylene (HDPE) that adopts compared to double-sided adhesive conjunctiva intermediate layer relevant in prior art or the higher fusing point of polypropylene material and intensity, thus whole heat-resistance type double-sided adhesive conjunctiva is made to possess higher intensity and heat resistance.In addition, due to the setting of bonding enhancement Layer, further enhance whole heat-resistance type double-sided adhesive conjunctiva bonding integraty and adhesion strength.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (3)
1. a heat-resistance type double-sided adhesive conjunctiva, it is characterized in that: described double-sided adhesive conjunctiva comprises the surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two, five layers of described double-sided adhesive conjunctiva shaping by coextrusion film blowing, described intermediate layer is that homopolymerization nylon material forms whole double-sided adhesive conjunctiva supportive structure, described surface conjunction layer one and surface conjunction layer two are by comprising SEBS, the raw material of EVA and low density polyethylene (LDPE) is prepared from, described bonding enhancement Layer is as between surface conjunction layer one and intermediate layer, adhesive layer between surface conjunction layer two and intermediate layer, this bonding enhancement Layer is that PE/PA is in conjunction with material,
Wherein, described surface conjunction layer one is prepared from by the composition that content is following:
SEBS25~30wt%，
EVA55~80wt%，
Low density polyethylene (LDPE) 5 ~ 15wt%;
The mass percent sum of each component is 100%;
Described surface conjunction layer two is prepared from by the composition that content is following:
SEBS25~35wt%，
EVA50~75wt%，
Low density polyethylene (LDPE) 5 ~ 15wt%;
The mass percent sum of each component is 100%;
Described intermediate layer is PA6 material;
The surface conjunction layer one of arranging successively, bonding enhancement Layer, intermediate layer, bonding enhancement Layer and surface conjunction layer two account for 5% ~ 20%, 5% ~ 10%, 40% ~ 80%, 5% ~ 10%, 5% ~ 20% of double-sided adhesive conjunctiva gross weight respectively, and the quality of each layer is 100% than sum.
2. heat-resistance type double-sided adhesive conjunctiva as claimed in claim 1, it is characterized in that, described surface conjunction layer two is prepared from by the composition that content is following:
SEBS30wt%，
EVA60wt%，
Low density polyethylene (LDPE) 10wt%.
3. the preparation method as the heat-resistance type double-sided adhesive conjunctiva in claim 1-2 as described in any one, it is characterized in that being prepared by coextrusion film blowing processing technology, use five-layer co-squeezing packaging film blow moulding machine, quality measurer is entered by feed bin, after raw material mixes by the compound counterdie batching in claim 1-2 described in any one by quality measurer, the extruder that supply 5 different angles are put, deliver to after die head through draping mechanism and form film sandwich layer and ectonexine respectively, be blown into cooling-air by fan and film pipe is blown into film bubble, film bubble is after outer cooling vane and internal bubble cooling system cooling, after drafting system and corona processor process, enter wrap-up carry out rolling and cut, namely heat-resistance type double-sided adhesive conjunctiva is obtained.
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| CN201410645612.6A CN104354423B (en) | 2014-11-15 | 2014-11-15 | A kind of heat-resistance type double-sided adhesive conjunctiva and preparation method thereof |
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| CN201410645612.6A CN104354423B (en) | 2014-11-15 | 2014-11-15 | A kind of heat-resistance type double-sided adhesive conjunctiva and preparation method thereof |
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| CN104354423B true CN104354423B (en) | 2016-01-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879800A (en) * | 2010-06-08 | 2010-11-10 | 湖北恒泰橡塑有限公司 | High-barrier medical film |
| CN103483719A (en) * | 2013-08-28 | 2014-01-01 | 杭州正奥科技有限公司 | Repeatedly-adhered heat-insulating film and manufacturing method thereof |
| CN203919909U (en) * | 2014-04-30 | 2014-11-05 | 朝阳佛瑞达科技有限公司 | Micro-foaming air-tightness coextruded film |
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| UA75387C2 (en) * | 2001-02-01 | 2006-04-17 | Becker & Co Naturinwerk | Five-layered, biaxially-oriented tubular film for the packaging and wrapping of meat, or meat with bones and a pack made thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879800A (en) * | 2010-06-08 | 2010-11-10 | 湖北恒泰橡塑有限公司 | High-barrier medical film |
| CN103483719A (en) * | 2013-08-28 | 2014-01-01 | 杭州正奥科技有限公司 | Repeatedly-adhered heat-insulating film and manufacturing method thereof |
| CN203919909U (en) * | 2014-04-30 | 2014-11-05 | 朝阳佛瑞达科技有限公司 | Micro-foaming air-tightness coextruded film |
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