CN105505241A - Preparation method of substrate-free EVA (ethylene-vinyl acetate) hot melt adhesive film - Google Patents
Preparation method of substrate-free EVA (ethylene-vinyl acetate) hot melt adhesive film Download PDFInfo
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- CN105505241A CN105505241A CN201510980875.7A CN201510980875A CN105505241A CN 105505241 A CN105505241 A CN 105505241A CN 201510980875 A CN201510980875 A CN 201510980875A CN 105505241 A CN105505241 A CN 105505241A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2457/00—Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08J2457/02—Copolymers of mineral oil hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention relates to a preparation method of a substrate-free EVA (ethylene-vinyl acetate) hot melt adhesive film. The hot melt adhesive film is prepared through mixed production of EVA particles and masterbatch in a weight ratio being 100:(5-15). The preparation method comprises specific steps as follows: preparation of raw materials of the masterbatch, wherein the masterbatch is prepared from the raw materials in parts by weight as follows: 40-50 parts of EVA, 40-50 parts of petroleum resin and 1-10 parts of a processing aid; granulation: the raw materials of the masterbatch are added to a stirring machine for mixing, then the mixed masterbatch materials are added to a granulation machine for granulation, and the masterbatch is obtained through drying after granulation; flow-casting: the EVA particles and the masterbatch are mixed in the weight ratio being100:(5-15) and fed into a casting machine for casting forming and coiling; slitting: uncoiled materials are slit on a slitting machine and packaged. The preparation method of the substrate-free EVA hot melt adhesive film has the advantages that the method comprises four steps of preparation of the raw materials of the masterbatch, granulation, casting as well as slitting and packaging, and the bonding strength and temperature resistance of the hot melt adhesive film are improved.
Description
Technical field
The present invention relates to a kind of melten gel film, particularly a kind of EVA is without the preparation method of base material hot melt adhesive film.
Background technology
Hot melt film adhesive is a kind of band separate-type paper (having base material) or the film series products not with separate-type paper (without base material), can carry out easily continuously or periodical operation.Each kind fabric, paper, macromolecular material and metlbond can be widely used in.
The hot melt adhesive film of resin based on ethene-vinyl acetate between to for plastic random copolymers (EVA), it is one of most important kind of hot melt adhesive film, it has good cementing property, snappiness, elasticity, the transparency, tackiness, weather, erosion resistance, can be compatible well with tinting material with weighting agent, the mode of machine-shaping is a lot, as extrusion molding, coating, injection moulding, blowing, heat-sealing etc., so EVA resin is widely used in the aspects such as plastic sheeting for farm use, shoemaking, automobile industry, blending and modifying and papermaking.
It is low to there is bonding strength in current EVA hot-melt adhesive mould on the market, and heat resistance is poor, etc. shortcoming, can not meet the use needs of requirements at the higher level.
Summary of the invention
The technical problem to be solved in the present invention is to provide the preparation method of the high and EVA that heat resistance is good of a kind of bonding strength without base material hot melt adhesive film.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of EVA is without the preparation method of base material hot melt adhesive film, and its innovative point is: described hot melt adhesive film is formed with a weight ratio 100:5 ~ 15 part mixture manufacturing by EVA particle and master batch.
Further, described preparation method's concrete steps are as follows:
(1) master batch raw material: be made up of the raw material of following weight proportion, EVA40-50 part, petroleum resin 40-50 part, processing aid 1-10 part;
(2) granulation: first the master batch raw material in step (1) is put into stirrer for mixing, then mixed master batch raw material is put into tablets press granulation, granulation completes post-drying and then obtains master batch;
(3) curtain coating: EVA particle and the master batch obtained in step (2) are mixed with weight ratio 100:5 ~ 15 part and feeds flow casting molding in casting machine and rolling;
(4) packaging is cut: cut on slitting shear machine after unreeling and pack.
Further, in described step (2), stirrer adopts homogenizer, stirring velocity 300-500rpm, churning time 10min.
Further, in described step (2), tablets press adopts dual-screw pelletizer, main frame electric current 70-90A, melt pressure 0-4MPa, engine speed 300-500r/min, feeding rotating speed 200-220r/min; Heating zone is divided into ten districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district and head district, the temperature in these ten districts is set as 65 ± 2 DEG C, 65 ± 2 DEG C, 75 ± 2 DEG C, 75 ± 2 DEG C, 75 ± 2 DEG C, 65 ± 2 DEG C, 65 ± 2 DEG C, 70 ± 2 DEG C, 70 ± 2 DEG C, 65 ± 2 DEG C, 85 ± 2 DEG C respectively.
Further, need before described tablets press work with PE pure material, screw rod to be cleaned out.
Further, bake out temperature 35-45 DEG C, time 5-6h in described step (2).
Further, casting machine screw speed 310r/min in described step (3), water temperature 13 ± 2 DEG C, extrusion temperature is divided into nine districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, elbow district, filter screen district, and the temperature in these nine districts is set as 65 ± 2 DEG C, 125 ± 2 DEG C, 135 ± 2 DEG C, 138 ± 2 DEG C, 142 ± 2 DEG C, 142 ± 2 DEG C, 142 ± 2 DEG C, 147 ± 2 DEG C, 147 ± 2 DEG C respectively; Die head temperature is divided into nine districts along extruding direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district, and the temperature in these nine districts is respectively and is set as 150 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 150 ± 3 DEG C; Roller speed is respectively, a roller 420-980m/min, a roller 450-1200m/min, three roller 450-1500m/min, four roller 600-1500m/min, five roller 490-1200m/min.
The invention has the advantages that:
(1) EVA of the present invention mainly comprises master batch raw material, granulation, curtain coating without the preparation method of base material hot melt adhesive film and cuts packaging four steps, in casting step, master batch feeds flow casting molding in casting machine and rolling with a weight ratio 100:5 ~ 15 part mixing, this preparation method is simple, and produce that obtained hot melt adhesive film bonding strength is high and heat resistance good, peeling force >=1kgf, and product does not glue at 55 DEG C, 60 DEG C are not exclusively sticky;
(2), in granulating working procedure, stirrer adopts homogenizer, and stirring velocity 300-500rpm, churning time 10min, improve the mixed effect of EVA in raw material, petroleum resin, processing aid;
(3) in granulating working procedure, master batch proportioning raw materials is EVA40-50 part, petroleum resin 40-50 part, processing aid 1-10 part, makes this master batch raw material be 25-25g/min the melting index of 160 DEG C; Tablets press adopts dual-screw pelletizer, main frame electric current 70-90A, melt pressure 0-4MPa, engine speed 300-500r/min, feeding rotating speed 200-220r/min, be divided into heating zone ten districts progressively to heat along Screw Extrusion direction, balling ratio, granule roundness are high and granulation uniformity is high, grain diameter reaches 3mm-5mm, also improves granulation efficiency high simultaneously;
(4) due to can not compound be had in curtain coating operation, need with PE pure material, screw rod to be cleaned out before tablets press work, thus ensure the effect of curtain coating, improve the quality of product;
(5) in curtain coating operation, EVA particle and master batch mix with weight ratio 100:5 ~ 15 part and feed in casting machine, make this compound be 35-45g/min the melting index of 190 DEG C; During curtain coating, screw speed 310r/min, water temperature 13 ± 2 DEG C, extrusion temperature is divided into nine district's differences to arrange along Screw Extrusion direction, die head temperature is divided into nine district's differences to arrange along extruding direction, and the roller speed of each roller is independent simultaneously controls, extrusion temperature and die head temperature zonal control, improve the formed precision of product, ensure that the quality of product.
Embodiment
Embodiment 1
EVA, without a preparation method for base material hot melt adhesive film, take product type as L033A-05, and specification is the hot melt adhesive film of 152cm*500m/r is example, and it is as follows that it prepares concrete steps:
The first step, master batch raw material: be made up of the raw material of following weight proportion, EVA45 part, petroleum resin 45 parts, processing aid 10 parts, master batch raw material is 25-25g/min the melting index of 160 DEG C;
Second step, granulation: need before tablets press work with PE pure material, screw rod to be cleaned out, then the master batch raw material in the first step is put into stirrer for mixing, stirrer adopts homogenizer, stirring velocity 300-500rpm, churning time 10min; Then mixed master batch raw material is put into tablets press granulation, tablets press adopts dual-screw pelletizer, main frame electric current 80A, melt pressure 2MPa, engine speed 290r/min, feeding rotating speed 210r/min, heating zone is divided into ten districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district and head district, the temperature in these ten districts is set as 65 DEG C, 65 DEG C, 75 DEG C, 75 DEG C, 75 DEG C, 65 DEG C, 65 DEG C, 70 DEG C, 70 DEG C, 65 DEG C, 85 DEG C respectively; Granulation completes post-drying and then obtains master batch, bake out temperature 35 DEG C, time 4h;
3rd step, curtain coating: EVA particle and the master batch obtained in second step are mixed with weight ratio 100:9 part and feeds flow casting molding in casting machine and rolling, compound is 35-45g/min the melting index of 190 DEG C, casting machine screw speed 310r/min, water temperature 13 DEG C, extrusion temperature is divided into nine districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, elbow district, filter screen district, and the temperature in these nine districts is set as 65 DEG C, 125 DEG C, 135 DEG C, 138 DEG C, 142 DEG C, 142 DEG C, 142 DEG C, 147 DEG C, 147 DEG C respectively; Die head temperature is divided into nine districts along extruding direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district, and the temperature in these nine districts is respectively and is set as 150 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 150 DEG C; Roller speed is respectively, a roller 843m/min, a roller 865m/min, three roller 903m/min, four roller 1215m/min, five roller 1078m/min;
4th step, cuts packaging: cut on slitting shear machine after unreeling and be packaged into hot melt adhesive film finished product.
Embodiment 2
EVA, without a preparation method for base material hot melt adhesive film, take product type as L033A-10, and specification is the hot melt adhesive film of 152cm*250m/r is example, and it is as follows that it prepares concrete steps:
The first step, master batch raw material: be made up of the raw material of following weight proportion, EVA45 part, petroleum resin 45 parts, processing aid 10 parts, master batch raw material is 25-25g/min the melting index of 160 DEG C;
Second step, granulation: need before tablets press work with PE pure material, screw rod to be cleaned out, then the master batch raw material in the first step is put into stirrer for mixing, stirrer adopts homogenizer, stirring velocity 300-500rpm, churning time 10min; Then mixed master batch raw material is put into tablets press granulation, tablets press adopts dual-screw pelletizer, main frame electric current 80A, melt pressure 2MPa, engine speed 290r/min, feeding rotating speed 210r/min, heating zone is divided into ten districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district and head district, the temperature in these ten districts is set as 65 DEG C, 65 DEG C, 75 DEG C, 75 DEG C, 75 DEG C, 65 DEG C, 65 DEG C, 70 DEG C, 70 DEG C, 65 DEG C, 85 DEG C respectively; Granulation completes post-drying and then obtains master batch, bake out temperature 35 DEG C, time 4h;
3rd step, curtain coating: EVA particle and the master batch obtained in second step are mixed with weight ratio 100:9 part and feeds flow casting molding in casting machine and rolling, compound is 35-45g/min the melting index of 190 DEG C, casting machine screw speed 310r/min, water temperature 13 DEG C, extrusion temperature is divided into nine districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, elbow district, filter screen district, and the temperature in these nine districts is set as 65 DEG C, 125 DEG C, 135 DEG C, 138 DEG C, 142 DEG C, 142 DEG C, 142 DEG C, 147 DEG C, 147 DEG C respectively; Die head temperature is divided into nine districts along extruding direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district, and the temperature in these nine districts is respectively and is set as 150 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 150 DEG C; Roller speed is respectively, a roller 582m/min, a roller 426m/min, three roller 463m/min, four roller 616m/min, five roller 502m/min;
4th step, cuts packaging: cut on slitting shear machine after unreeling and be packaged into hot melt adhesive film finished product.
Embodiment 3
EVA, without a preparation method for base material hot melt adhesive film, take product type as L033A-25, and specification is the hot melt adhesive film of 152cm*500m/r is example, and it is as follows that it prepares concrete steps:
The first step, master batch raw material: be made up of the raw material of following weight proportion, EVA45 part, petroleum resin 45 parts, processing aid 10 parts, master batch raw material is 25-25g/min the melting index of 160 DEG C;
Second step, granulation: need before tablets press work with PE pure material, screw rod to be cleaned out, then the master batch raw material in the first step is put into stirrer for mixing, stirrer adopts homogenizer, stirring velocity 300-500rpm, churning time 10min; Then mixed master batch raw material is put into tablets press granulation, tablets press adopts dual-screw pelletizer, main frame electric current 80A, melt pressure 2MPa, engine speed 290r/min, feeding rotating speed 210r/min, heating zone is divided into ten districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district and head district, the temperature in these ten districts is set as 65 DEG C, 65 DEG C, 75 DEG C, 75 DEG C, 75 DEG C, 65 DEG C, 65 DEG C, 70 DEG C, 70 DEG C, 65 DEG C, 85 DEG C respectively; Granulation completes post-drying and then obtains master batch, bake out temperature 35 DEG C, time 4h;
3rd step, curtain coating: EVA particle and the master batch obtained in second step are mixed with weight ratio 100:9 part and feeds flow casting molding in casting machine and rolling, compound is 35-45g/min the melting index of 190 DEG C, casting machine screw speed 310r/min, water temperature 13 DEG C, extrusion temperature is divided into nine districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, elbow district, filter screen district, and the temperature in these nine districts is set as 65 DEG C, 125 DEG C, 135 DEG C, 138 DEG C, 142 DEG C, 142 DEG C, 142 DEG C, 147 DEG C, 147 DEG C respectively; Die head temperature is divided into nine districts along extruding direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district, and the temperature in these nine districts is respectively and is set as 150 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 145 DEG C, 150 DEG C; Roller speed is respectively, a roller 973m/min, a roller 1149m/min, three roller 1083m/min, four roller 1423m/min, five roller 1161m/min;
4th step, cuts packaging: cut on slitting shear machine after unreeling and be packaged into hot melt adhesive film finished product.
Following table is the performance perameter table of EVA hot-melt adhesive film obtained in the embodiment of the present invention 1 to embodiment 3,
As seen from the above table, by the preparation method of EVA of the present invention without base material hot melt adhesive film, the performance of obtained hot melt adhesive film is good, and the quality of product is high, and bonding strength is high and heat resistance good, peeling force >=1kgf, and product does not glue at 55 DEG C, and 60 DEG C not exclusively sticky.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (7)
1. EVA is without a preparation method for base material hot melt adhesive film, it is characterized in that: described hot melt adhesive film is formed with a weight ratio 100:5 ~ 15 part mixture manufacturing by EVA particle and master batch.
2. EVA according to claim 1 is without the preparation method of base material hot melt adhesive film, it is characterized in that: described preparation method's concrete steps are as follows:
Master batch raw material: be made up of the raw material of following weight proportion, EVA40-50 part, petroleum resin 40-50 part, processing aid 1-10 part;
Granulation: first the master batch raw material in step (1) is put into stirrer for mixing, then mixed master batch raw material is put into tablets press granulation, granulation completes post-drying and then obtains master batch;
Curtain coating: EVA particle and the master batch obtained in step (2) are mixed with weight ratio 100:5 ~ 15 part and feeds flow casting molding in casting machine and rolling;
Cut packaging: cut on slitting shear machine after unreeling and pack.
3. EVA according to claim 2 is without the preparation method of base material hot melt adhesive film, it is characterized in that: in described step (2), stirrer adopts homogenizer, stirring velocity 300-500rpm, churning time 10min.
4. EVA according to claim 2 is without the preparation method of base material hot melt adhesive film, it is characterized in that: in described step (2), tablets press adopts dual-screw pelletizer, main frame electric current 70-90A, melt pressure 0-4MPa, engine speed 300-500r/min, feeding rotating speed 200-220r/min; Heating zone is divided into ten districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district and head district, the temperature in these ten districts is set as 65 ± 2 DEG C, 65 ± 2 DEG C, 75 ± 2 DEG C, 75 ± 2 DEG C, 75 ± 2 DEG C, 65 ± 2 DEG C, 65 ± 2 DEG C, 70 ± 2 DEG C, 70 ± 2 DEG C, 65 ± 2 DEG C, 85 ± 2 DEG C respectively.
5. EVA according to claim 4 is without the preparation method of base material hot melt adhesive film, it is characterized in that: need before described tablets press work to be cleaned out by screw rod with PE pure material.
6. EVA according to claim 2 is without the preparation method of base material hot melt adhesive film, it is characterized in that: bake out temperature 35-45 DEG C, time 5-6h in described step (2).
7. EVA according to claim 2 is without the preparation method of base material hot melt adhesive film, it is characterized in that: casting machine screw speed 310r/min in described step (3), water temperature 13 ± 2 DEG C, extrusion temperature is divided into nine districts along Screw Extrusion direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, elbow district, filter screen district, and the temperature in these nine districts is set as 65 ± 2 DEG C, 125 ± 2 DEG C, 135 ± 2 DEG C, 138 ± 2 DEG C, 142 ± 2 DEG C, 142 ± 2 DEG C, 142 ± 2 DEG C, 147 ± 2 DEG C, 147 ± 2 DEG C respectively; Die head temperature is divided into nine districts along extruding direction: a district, 2nd district, 3rd district, 4th district, 5th district, 6th district, 7th district, 8th district, 9th district, and the temperature in these nine districts is respectively and is set as 150 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 145 ± 3 DEG C, 150 ± 3 DEG C; Roller speed is respectively, a roller 420-980m/min, a roller 450-1200m/min, three roller 450-1500m/min, four roller 600-1500m/min, five roller 490-1200m/min.
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| CN201510980875.7A CN105505241B (en) | 2015-12-24 | 2015-12-24 | A kind of preparation methods of the EVA without base material hot melt adhesive film |
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| CN201510980875.7A CN105505241B (en) | 2015-12-24 | 2015-12-24 | A kind of preparation methods of the EVA without base material hot melt adhesive film |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109880224A (en) * | 2019-03-01 | 2019-06-14 | 江苏嘉好热熔胶股份有限公司 | A kind of hot melt adhesive composite packaging membrane material and preparation method thereof |
| CN112680149A (en) * | 2020-12-18 | 2021-04-20 | 广东盈通新材料有限公司 | Hot melt adhesive and preparation method and application thereof |
| CN114714724A (en) * | 2022-04-28 | 2022-07-08 | 云阳金田塑业有限公司 | Hot melt adhesive transfer film and preparation method thereof |
| CN115093807A (en) * | 2022-06-23 | 2022-09-23 | 东莞市学诚塑胶制品有限公司 | High-molecular adhesive film and production process thereof |
| WO2022199579A1 (en) * | 2021-03-24 | 2022-09-29 | 江苏鹿山新材料有限公司 | Black high-reflection high-heat-conducting anti-pid eva encapsulation film, and preparation method therefor and application thereof |
Citations (3)
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| CN104893091A (en) * | 2015-06-26 | 2015-09-09 | 福建惠亿美环保材料科技有限公司 | Super-transparent EVA film and production method thereof |
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| CN102492369A (en) * | 2011-11-30 | 2012-06-13 | 昆山天洋热熔胶有限公司 | Production process of vinylacetate (EVA) glue film for solar battery packaging |
| CN103525319A (en) * | 2013-09-27 | 2014-01-22 | 广州泰鸿通光电科技有限公司 | Ultraviolet crosslinking and curing EVA (ethylene vinyl acetate copolymer) optical adhesive film and preparation method thereof |
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| CN109880224A (en) * | 2019-03-01 | 2019-06-14 | 江苏嘉好热熔胶股份有限公司 | A kind of hot melt adhesive composite packaging membrane material and preparation method thereof |
| CN112680149A (en) * | 2020-12-18 | 2021-04-20 | 广东盈通新材料有限公司 | Hot melt adhesive and preparation method and application thereof |
| WO2022199579A1 (en) * | 2021-03-24 | 2022-09-29 | 江苏鹿山新材料有限公司 | Black high-reflection high-heat-conducting anti-pid eva encapsulation film, and preparation method therefor and application thereof |
| CN114714724A (en) * | 2022-04-28 | 2022-07-08 | 云阳金田塑业有限公司 | Hot melt adhesive transfer film and preparation method thereof |
| CN114714724B (en) * | 2022-04-28 | 2023-11-17 | 云阳金田塑业有限公司 | Hot melt adhesive transfer film and preparation method thereof |
| CN115093807A (en) * | 2022-06-23 | 2022-09-23 | 东莞市学诚塑胶制品有限公司 | High-molecular adhesive film and production process thereof |
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