CN114479727A - Preparation method of low-viscosity high-curing hot melt adhesive rod - Google Patents
Preparation method of low-viscosity high-curing hot melt adhesive rod Download PDFInfo
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- CN114479727A CN114479727A CN202011154935.7A CN202011154935A CN114479727A CN 114479727 A CN114479727 A CN 114479727A CN 202011154935 A CN202011154935 A CN 202011154935A CN 114479727 A CN114479727 A CN 114479727A
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- Prior art keywords
- reaction kettle
- hot melt
- melt adhesive
- wax
- stabilizer
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- 239000004831 Hot glue Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 37
- 239000003381 stabilizer Substances 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000003208 petroleum Substances 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 101000969770 Homo sapiens Myelin protein zero-like protein 2 Proteins 0.000 claims description 42
- 102100021272 Myelin protein zero-like protein 2 Human genes 0.000 claims description 42
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 26
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 26
- 239000000498 cooling water Substances 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000002530 phenolic antioxidant Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 239000001993 wax Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- C09J157/00—Adhesives based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09J157/02—Copolymers of mineral oil hydrocarbons
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
-
- 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
- C09J191/00—Adhesives based on oils, fats or waxes; Adhesives based on derivatives thereof
- C09J191/06—Waxes
-
- 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
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/005—Glue sticks
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a preparation method of a low-viscosity high-curing hot melt adhesive rod, which comprises the following steps of providing a raw material EVA 110-40%; 5-25% of wax; 1-5% of a stabilizer; 25-30% of EVA; petroleum resin C5 or C920-65%; heating the reaction kettle, feeding materials and stirring, after all the raw materials are added and melted, setting the heating temperature of the reaction kettle at 135 ℃, preserving the heat, covering the cover of the reaction kettle, introducing compressed air, controlling the air pressure to be between 2 and 2.5kg/cm2, and finally cooling and forming. Compared with the prior art, the invention has the following beneficial effects: accurate temperature, atmospheric pressure, time control can obtain the hot melt adhesive stick of low viscosity high solidification, and the defective rate reduces, has reduced the manufacturing cost of enterprise.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a preparation method of a low-viscosity high-curing hot melt adhesive rod.
Background
In recent years, hot melt adhesives are widely applied in the fields of case sealing packaging and book binding, and play a role in promoting the improvement of production efficiency and product quality in the industrialization process of the fields. At present, the hot melt adhesive applied to the field of case sealing packaging and book binding mainly takes EVA (polyvinyl acetate) as a basic component, and paraffin, polyethylene wax and tackifying resin such as rosin, modified petroleum resin and the like are added. Because of EVA hot melt adhesive, it has very good adhesion effect to materials such as paper, plastic, timber, etc., its characteristics are: high speed and high strength, and can greatly improve the production efficiency in the aspect of packaging.
Although the traditional EVA hot melt adhesive can meet the bonding requirement of products, some problems exist in the using process. The raw materials required for preparing the EVA hot melt adhesive are environment-friendly materials, the environment is not polluted, the requirements on various indexes are strict, and the softening point of the used materials is between 80 and 130 ℃; the melt index of EVA is between 400-600g/10min, and the VA Content (%) is between 18 and 40. Because the selected raw materials are special, the raw materials are not easy to form in the production process, more defective products can be generated due to improper control, and strict requirements are provided for raw material melting temperature control, material heat preservation temperature control and cooling forming temperature control.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a preparation method of a low-viscosity high-curing hot melt adhesive rod.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a hot melt adhesive rod with low viscosity and high curing comprises the following steps,
a raw material preparation step, wherein the following raw material EVA is provided for 110-40%; 5-25% of wax; 1-5% of a stabilizer; 25-30% of EVA; petroleum resin C5 or C920-65%;
a stirring step, namely heating the reaction kettle, starting a motor of the reaction kettle to stir when the oil temperature displayed by an oil meter reaches 180 ℃, slowly adding the raw material EVA1 and the stabilizer into the reaction kettle in sequence, and keeping the oil temperature of the reaction kettle at 190-;
a secondary feeding step, after the raw materials EVA1 and the stabilizer are completely melted, slowly adding the wax, the petroleum resin and the EVA2 into the reaction kettle in sequence, and controlling the rotating speed of a motor to be 15-50 r/min during feeding;
a heat preservation step, after all the raw materials are added and melted, setting the heating temperature of the reaction kettle at 135 ℃, preserving the heat, covering the cover of the reaction kettle, introducing compressed air, controlling the air pressure to be between 2 and 2.5kg/cm2, and controlling the total feeding time to be within 120 minutes;
and a cooling forming step, namely opening a discharging switch of the reaction kettle, feeding the reaction kettle into cooling water through extrusion forming equipment, setting the temperature of the cooling water to be between 10 and 17 ℃, cooling the high-temperature glue solution in a water tank, and cutting and packaging the glue solution through a cutting machine to obtain a finished product.
Preferably, the EVA1 is an ethylene-vinyl acetate copolymer, wherein the content of vinyl acetate is 25-40%, and the melt index is 400-480 g/10 min.
Preferably, the EVA2 is an ethylene-vinyl acetate copolymer, wherein the content of vinyl acetate is 19-30%, and the melt index is 500/10-600 g/10 min.
Preferably, the wax is any one of polyethylene wax, polypropylene wax, Fischer-Tropsch wax and EVA modified wax.
Preferably, the stabilizer is phenolic antioxidant 2, 6-di-tert-butyl-p-cresol.
Preferably, the secondary feeding step is stirred for 20 minutes to completely melt the raw material EVA1 and the stabilizer.
Preferably, the length of the water tank in the cooling forming step is more than 15 meters.
Compared with the prior art, the invention has the following beneficial effects: accurate temperature, atmospheric pressure, time control can obtain the hot melt adhesive stick of low viscosity high solidification, and the defective rate reduces, has reduced the manufacturing cost of enterprise.
The raw materials EVA1 and EVA2 are two EVA because of different melt indexes; secondly, the content of the wax acid vinyl ester of the EVA1 is different from that of the EVA 2; furthermore, the melting points of the EVA1 and the EVA2 are different, the EVA1 which is relatively difficult to melt is put in the front, and the EVA1 which is easy to melt is put in the back, so that the feeding time can be greatly saved.
The hot melt adhesive raw material adopted in the invention can age or even carbonize because of too high temperature for too long time, so that the air in the molten adhesive liquid can be extruded out by adding compressed air because of the pressure of the compressed air under the strict control of the feeding time, thereby preventing the generation of bubbles in the adhesive rod in the forming process.
Detailed Description
The invention discloses a preparation method of a low-viscosity high-curing hot melt adhesive rod. The hot melt adhesive rod is a mixture formed by melting a plurality of raw materials at high temperature and high pressure and then cooling, and the preparation method has very accurate control requirements on temperature, pressure, cooling water temperature and the like. The EVA1 in the embodiment of the invention is an ethylene-vinyl acetate copolymer, wherein the content of vinyl acetate is 25-40%, and the melt index is 400-480 g/10 min. The EVA2 is an ethylene-vinyl acetate copolymer, wherein the content of vinyl acetate is 19-30%, and the melt index is 500/10-600 g/10 min. The stabilizer is phenol antioxidant 2, 6-di-tert-butyl-p-cresol. The wax is any one of polyethylene wax, polypropylene wax, Fischer-Tropsch wax and EVA modified wax.
The following is specifically illustrated by examples.
Example 1
Preparing raw materials (weight percentage) EVA 110%; 5% of wax; 5% of a stabilizer; EVA 230%; petroleum resin C550%; heating the reaction kettle, starting a motor of the reaction kettle for stirring when the oil temperature displayed by an oil meter reaches 180 ℃, slowly adding the raw material EVA1 and the stabilizer into the reaction kettle in sequence, and keeping the oil temperature of the reaction kettle at 190-; stirring for 20 minutes until the raw materials EVA1 and the stabilizer are completely melted, slowly adding the wax, the petroleum resin and the EVA2 into the reaction kettle in sequence, and controlling the rotating speed of a motor to be 15-50 r/min during the feeding period; after all the raw materials are added and melted, setting the heating temperature of the reaction kettle at 135 ℃ for heat preservation, covering the cover of the reaction kettle, introducing compressed air, controlling the air pressure between 2 and 2.5kg/cm2, and controlling the total feeding time within 120 minutes; opening a blanking switch of the reaction kettle, feeding the mixture into cooling water through extrusion molding equipment, setting the temperature of the cooling water between 10 and 17 ℃, cooling the high-temperature glue solution in a water tank, and cutting and packaging the glue solution through a cutting machine to obtain a finished product.
Example 2
Preparing raw materials (weight percentage) of EVA 140%; 5% of wax; 5% of a stabilizer; EVA225 percent; petroleum resin C525%; heating the reaction kettle, starting a motor of the reaction kettle for stirring when the oil temperature displayed by an oil meter reaches 180 ℃, slowly adding the raw material EVA1 and the stabilizer into the reaction kettle in sequence, and keeping the oil temperature of the reaction kettle at 190-; stirring for 20 minutes until the raw materials EVA1 and the stabilizer are completely melted, slowly adding the wax, the petroleum resin and the EVA2 into the reaction kettle in sequence, and controlling the rotating speed of a motor to be 15-50 revolutions per minute during the feeding period; after all the raw materials are added and melted, setting the heating temperature of the reaction kettle at 135 ℃ for heat preservation, covering the cover of the reaction kettle, introducing compressed air, controlling the air pressure between 2 and 2.5kg/cm2, and controlling the total feeding time within 120 minutes; opening a blanking switch of the reaction kettle, feeding the mixture into cooling water through extrusion molding equipment, setting the temperature of the cooling water between 10 and 17 ℃, cooling the high-temperature glue solution in a water tank, and cutting and packaging the glue solution through a cutting machine to obtain a finished product.
Example 3
Preparing raw materials (weight percentage) EVA 125%; 25% of wax; 5% of a stabilizer; EVA225 percent; petroleum resin C920%; heating the reaction kettle, starting a motor of the reaction kettle for stirring when the oil temperature displayed by an oil meter reaches 180 ℃, slowly adding the raw material EVA1 and the stabilizer into the reaction kettle in sequence, and keeping the oil temperature of the reaction kettle at 190-; stirring for 20 minutes until the raw materials EVA1 and the stabilizer are completely melted, slowly adding the wax, the petroleum resin and the EVA2 into the reaction kettle in sequence, and controlling the rotating speed of a motor to be 15-50 r/min during the feeding period; after all the raw materials are added and melted, setting the heating temperature of the reaction kettle at 135 ℃ for heat preservation, covering the cover of the reaction kettle, introducing compressed air, controlling the air pressure between 2 and 2.5kg/cm2, and controlling the total feeding time within 120 minutes; opening a blanking switch of the reaction kettle, feeding the mixture into cooling water through extrusion molding equipment, setting the temperature of the cooling water between 10 and 17 ℃, cooling the high-temperature glue solution in a water tank, and cutting and packaging the glue solution through a cutting machine to obtain a finished product.
Example 4
Preparing a raw material (weight percentage) of EVA 115%; 20% of wax; 5% of a stabilizer; EVA 230%; petroleum resin C930%; heating the reaction kettle, starting a motor of the reaction kettle for stirring when the oil temperature displayed by an oil meter reaches 180 ℃, slowly adding the raw material EVA1 and the stabilizer into the reaction kettle in sequence, and keeping the oil temperature of the reaction kettle at 190-; stirring for 20 minutes until the raw materials EVA1 and the stabilizer are completely melted, slowly adding the wax, the petroleum resin and the EVA2 into the reaction kettle in sequence, and controlling the rotating speed of a motor to be 15-50 r/min during the feeding period; after all the raw materials are added and melted, setting the heating temperature of the reaction kettle at 135 ℃ for heat preservation, covering the cover of the reaction kettle, introducing compressed air, controlling the air pressure between 2 and 2.5kg/cm2, and controlling the total feeding time within 120 minutes; opening a blanking switch of the reaction kettle, feeding the mixture into cooling water through extrusion molding equipment, setting the temperature of the cooling water between 10 and 17 ℃, cooling the high-temperature glue solution in a water tank, and cutting and packaging the glue solution through a cutting machine to obtain a finished product.
Product property and parameter table
The hot melt adhesive stick prepared by the invention can be quickly adhered to paper containers for packaging paper boxes, beer beverages and the like, is particularly suitable for automatic machine operation, can be quickly adhered to 60-100 products per minute in the quick adhesion of small packages such as facial tissue boxes, medicine boxes and the like, and is quick and efficient. The adhesive has good adhesive effect on wooden furniture, and is widely applied to wooden products due to low viscosity and easy wetting of adhered materials.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. A preparation method of a hot melt adhesive rod with low viscosity and high curing is characterized by comprising the following steps,
a raw material preparation step, wherein the following raw material EVA is provided for 110-40%; 5-25% of wax; 1-5% of a stabilizer; 25-30% of EVA; petroleum resin C5 or C920-65%;
a stirring step, namely heating the reaction kettle, starting a motor of the reaction kettle to stir when the oil temperature displayed by an oil meter reaches 180 ℃, slowly adding the raw material EVA1 and the stabilizer into the reaction kettle in sequence, and keeping the oil temperature of the reaction kettle at 190-;
a secondary feeding step, after the raw materials EVA1 and the stabilizer are completely melted, slowly adding the wax, the petroleum resin and the EVA2 into the reaction kettle in sequence, and controlling the rotating speed of a motor to be 15-50 r/min during feeding;
a heat preservation step, after all the raw materials are added and melted, setting the heating temperature of the reaction kettle at 135 ℃, preserving the heat, covering the cover of the reaction kettle, introducing compressed air, controlling the air pressure to be between 2 and 2.5kg/cm2, and controlling the total feeding time to be within 120 minutes;
and a cooling forming step, namely opening a discharging switch of the reaction kettle, feeding the reaction kettle into cooling water through extrusion forming equipment, setting the temperature of the cooling water to be between 10 and 17 ℃, cooling the high-temperature glue solution into a rod shape in a water tank, and cutting and packaging the rod-shaped glue solution through a cutting machine to obtain a finished product.
2. The preparation method of the low-viscosity high-curing hot melt adhesive rod as claimed in claim 1, wherein the EVA1 is an ethylene-vinyl acetate copolymer, wherein the content of vinyl acetate is 25% -40%, and the melt index is 400g/10 min-480 g/10 min.
3. The preparation method of the low-viscosity high-curing hot melt adhesive rod as claimed in claim 1, wherein the EVA2 is an ethylene-vinyl acetate copolymer, wherein the content of vinyl acetate is 19-30%, and the melt index is 500/10-600 g/10 min.
4. The method of claim 1, wherein the wax is any one of polyethylene wax, polypropylene wax, Fischer-Tropsch wax, and EVA modified wax.
5. The method for preparing a low viscosity high curing hot melt adhesive stick according to claim 1, wherein the stabilizer is phenolic antioxidant 2, 6-di-tert-butyl-p-cresol.
6. The method for preparing a low viscosity high curing hot melt adhesive stick according to claim 1, wherein the secondary feeding step is performed for 20 minutes to completely melt the raw material EVA1 and the stabilizer.
7. The method for preparing a low viscosity high curing hot melt adhesive stick according to claim 1, wherein the length of the water bath in the cooling molding step is more than 15 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154935.7A CN114479727A (en) | 2020-10-26 | 2020-10-26 | Preparation method of low-viscosity high-curing hot melt adhesive rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154935.7A CN114479727A (en) | 2020-10-26 | 2020-10-26 | Preparation method of low-viscosity high-curing hot melt adhesive rod |
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| Publication Number | Publication Date |
|---|---|
| CN114479727A true CN114479727A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011154935.7A Pending CN114479727A (en) | 2020-10-26 | 2020-10-26 | Preparation method of low-viscosity high-curing hot melt adhesive rod |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004010769A (en) * | 2002-06-07 | 2004-01-15 | Nisshin Chem Ind Co Ltd | Hot-melt adhesive for bookbinding and calendar production |
| TW201416405A (en) * | 2012-10-31 | 2014-05-01 | Tex Year Ind Inc | Hot melt adhesive |
| CN106543922A (en) * | 2016-11-02 | 2017-03-29 | 昆山天洋热熔胶有限公司 | It is suitable to the preparation method of the modified EVA hot-melt adhesive and its membrane-based article of masking |
| CN110240884A (en) * | 2019-05-09 | 2019-09-17 | 昆山太田新材料有限公司 | Industrial air filter filter paper hot melt adhesive and preparation method thereof |
| CN110240878A (en) * | 2019-05-09 | 2019-09-17 | 昆山太田新材料有限公司 | Expandability polyethylene hot melt adhesive and its preparation, application method |
-
2020
- 2020-10-26 CN CN202011154935.7A patent/CN114479727A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004010769A (en) * | 2002-06-07 | 2004-01-15 | Nisshin Chem Ind Co Ltd | Hot-melt adhesive for bookbinding and calendar production |
| TW201416405A (en) * | 2012-10-31 | 2014-05-01 | Tex Year Ind Inc | Hot melt adhesive |
| CN106543922A (en) * | 2016-11-02 | 2017-03-29 | 昆山天洋热熔胶有限公司 | It is suitable to the preparation method of the modified EVA hot-melt adhesive and its membrane-based article of masking |
| CN110240884A (en) * | 2019-05-09 | 2019-09-17 | 昆山太田新材料有限公司 | Industrial air filter filter paper hot melt adhesive and preparation method thereof |
| CN110240878A (en) * | 2019-05-09 | 2019-09-17 | 昆山太田新材料有限公司 | Expandability polyethylene hot melt adhesive and its preparation, application method |
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Application publication date: 20220513 |