CN112322234A - Low-cost quick-binding hot melt adhesive and preparation method thereof - Google Patents
Low-cost quick-binding hot melt adhesive and preparation method thereof Download PDFInfo
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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
- C09J157/00—Adhesives based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09J157/02—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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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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
- C09J145/00—Adhesives based on homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic system; Adhesives based on derivatives of such polymers
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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
- C09J193/00—Adhesives based on natural resins; Adhesives based on derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
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- 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
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Abstract
The invention discloses a low-cost quick wireless binding hot melt adhesive and a preparation method thereof, and relates to the technical field of hot melt adhesives, wherein the hot melt adhesive comprises the following components in percentage by weight: 35-55% of olefin polymer, 1-8% of EVA resin, 2-10% of reinforced rubber chain segment polymer, 30-55% of tackifying resin, 0-10% of microcrystalline wax, 3-10% of Fischer-Tropsch wax, 1-5% of antioxidant and 0-5% of filler. The brookfield viscosity of the hot melt adhesive of the invention is as follows: 6800 + -500/160 deg.C, softening point: 125 +/-10 ℃, and the curing time is as follows: 2.5-4 s, is suitable for the automatic production of various books and magazines, has the advantages of short curing time, excellent bonding performance, low hot-melt smell, good temperature resistance, low production cost, simple preparation method, stable physical and chemical properties, is suitable for a roll coating glue applying mode, and has excellent bonding effect on offset paper, coated paper, laminated paper and the like.
Description
Technical Field
The invention relates to the technical field of hot-melt adhesives, in particular to a low-cost quick perfect-binding hot-melt adhesive and a preparation method thereof.
Background
There are many binding methods for books: wired, wireless, stapled, etc. With the development of automated production, perfect binding has become the mainstream way of book binding. The perfect binding hot melt adhesive is developed rapidly in compliance with the binding mode, and the perfect binding hot melt adhesive is developed to the third generation from the polyvinyl alcohol type to the EVA type and then to the PUR type, wherein the EVA type perfect binding hot melt adhesive is still most widely applied.
Compared with polyvinyl alcohol, EVA wireless binding hot melt adhesive has obvious advantages in bonding strength, curing speed and high and low temperature resistance, but has a little advantage in curing speed compared with PUR type, and the bonding strength and the high and low temperature resistance are in disadvantages; the PUR perfect binding hot melt adhesive has various difficulties in technology and market due to high product price and high production equipment cost used by a producer. Moreover, with continuous research and development of new materials at the upstream and continuous emergence of new materials, how to develop a new system low-cost perfect binding hot melt adhesive which is applied with new materials and has the advantages of bonding performance and high and low temperature resistance aiming at EVA perfect binding hot melt adhesives is a problem to be solved urgently in the existing market. Therefore, the person skilled in the art provides a low-cost and fast perfect binding hot melt adhesive and a preparation method thereof, so as to solve the problems in the background art.
Disclosure of Invention
The invention aims to provide a low-cost quick perfect-binding hot melt adhesive and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a low-cost quick perfect-binding hot melt adhesive comprises the following components in percentage by weight:
35-55% of olefin polymer
1-8% of EVA resin
2-10% of reinforced rubber chain segment polymer
30-55% of tackifying resin
0 to 10 percent of microcrystalline wax
3 to 10 percent of Fischer-Tropsch wax
1 to 5 percent of antioxidant
0-5% of a filler;
the olefin polymer comprises a metallocene olefin polymer and an alpha-olefin copolymer;
the metallocene olefin polymer is a copolymer of low-crystallinity propylene and ethylene, and has the following density: and (2) carrying out high-speed harvest at the speed of 0.855-0.875 g/cm, and MFR: 3-1000 g/10 min;
the alpha-olefin copolymer is a copolymer which is obtained by grafting an alpha-olefin oligomer with the average molecular weight of 3000-10000 by using ethylene, propylene, butylene, ester or acid anhydride under the action of a catalyst, and has the average molecular weight of 10000-30000 and the softening point of 80-180 ℃;
the EVA resin is an ethylene-vinyl acetate copolymer;
the reinforced rubber chain segment polymer is a hydrogenated styrene block copolymer;
the tackifying resin is selected from any one or mixture of more of aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic hydrocarbon, modified hydrocarbon resin and hydrogenated derivative thereof, terpene and hydrogenated derivative thereof, rosin and modified rosin and hydrogenated derivative thereof;
the microcrystalline wax is an amorphous solid wax obtained by further refining a product obtained by fractionating petroleum serving as a raw material, and the microcrystalline wax mainly contains C13-70 branched chain saturated hydrocarbon and has a melting point of 60-95 ℃;
the Fischer-Tropsch wax is an alkane polymer synthesized by a Fischer-Tropsch process, the average molecular weight is 800-1000, and the melt viscosity at 140 ℃ is 6-10;
the antioxidant is one or a mixture of more of hindered phenol or hindered phenol combined with an auxiliary antioxidant;
the filler is one or a mixture of two of calcium carbonate, titanium dioxide and talcum powder.
As a further scheme of the invention: the hot melt adhesive comprises the following components in percentage by weight:
35 to 50 percent of olefin polymer
1-5% of EVA resin
2-8% of reinforced rubber chain segment polymer
30-45% of tackifying resin
1 to 5 percent of microcrystalline wax
3 to 8 percent of Fischer-Tropsch wax
1.5 to 3 percent of antioxidant
0-3% of filler.
As a still further scheme of the invention: the metallocene olefin polymer is preferably any one or a mixture of more of a metallocene olefin polymer 8880, a metallocene olefin polymer 8780 and a metallocene olefin polymer 8380; the alpha-olefin copolymer is preferably any one or a mixture of APAO792, APAO608 and APAO 888.
As a still further scheme of the invention: the EVA resin is preferably an ethylene-vinyl acetate copolymer with MI = 1.5-800 g/10min and VA = 20-40%.
As a still further scheme of the invention: the tackifying resin is preferably any one or a mixture of several of hydrogenated or semi-hydrogenated C5 petroleum resin, C5/C9 petroleum resin, terpene resin with the color of less than No. 3 in melt Gardner color, terpene styrene resin and hydrogenated rosin ester; the softening point of the tackifying resin by a ring and ball method is 100-140 ℃.
As a still further scheme of the invention: the microcrystalline wax is preferably microcrystalline wax with the melting point of 70-80 ℃.
As a still further scheme of the invention: the Fischer-Tropsch wax is preferably any one of Fischer-Tropsch wax PX-105 or Fischer-Tropsch wax PX-100.
As a still further scheme of the invention: the antioxidant is preferably one or a mixture of two of the antioxidant 1010 and the antioxidant 168.
As a still further scheme of the invention: the brookfield viscosity of the hot melt adhesive is as follows: 6800 + -500/160 deg.C, softening point: 125 +/-10 ℃, and the curing time is as follows: 2.5-4 s.
A preparation method of a low-cost quick perfect-binding hot melt adhesive comprises the following steps:
step (1): preheating a reaction kettle: starting a reaction kettle for heating and starting stirring, wherein the oil temperature of the reaction kettle is set to be 250 ℃;
step (2): cooling the temperature of the reaction kettle to 160-170 ℃, adding microcrystalline wax, Fischer-Tropsch wax and an antioxidant, and continuously stirring until all the components are completely melted;
and (3): raising the temperature of the reaction kettle oil to 250 ℃ and keeping the temperature, adding the olefin polymer, the EVA resin and the reinforced rubber chain segment polymer, and stirring while vacuumizing until all the components are completely melted;
and (4): setting the oil temperature of the reaction kettle at 200 ℃, adding tackifying resin, and stirring while vacuumizing until all components are completely melted;
and (5): adding filler according to actual conditions, fully stirring and uniformly mixing, vacuumizing a reaction system until no bubbles exist, introducing nitrogen to normal pressure, and stopping stirring to obtain the product.
Compared with the prior art, the invention has the beneficial effects that: the invention discloses a low-cost quick wireless binding hot melt adhesive and a preparation method thereof, wherein olefin polymers are selected as main components of the novel low-cost quick wireless binding hot melt adhesive, and simultaneously EVA resin with good compatibility and reinforced rubber chain segment polymers are compounded to form a composite matrix component, so that the cohesive strength of a colloid is ensured, and the wettability of the colloid to a base material is enhanced; the comprehensive application of a proper amount of microcrystalline wax and Fischer-Tropsch wax reduces the wiredrawing property and the melt viscosity of the composite matrix component, improves the fluidity and the curing speed of the hot melt adhesive, and greatly avoids the reduction of the low temperature resistance; the use of the proper tackifying resin provides higher peel strength for the hot melt adhesive and provides enough guarantee for the hot melt adhesive to generate good bonding effect on various bonding substrates.
The invention has the following advantages:
1. the adhesive property is strong: compared with the traditional EVA hot melt adhesive and polyvinyl alcohol adhesive, the adhesive material provided by the invention is wider in application range and stronger in adhesive property.
2. Low odor: compared with the traditional EVA hot melt adhesive and polyvinyl alcohol adhesive, the invention has less smoke, low smell and more environmental protection in the hot melting state.
3. The curing is fast, the temperature resistance is good: the curing time of the wireless binding hot melt adhesive is 2.5-4 s, and the high and low temperature resistance of the wireless binding hot melt adhesive is superior to that of the traditional polyvinyl alcohol adhesive and EVA wireless binding hot melt adhesive.
4. The cost is low: under the condition that the comprehensive performance is superior to that of the traditional polyvinyl alcohol adhesive and EVA wireless binding hot melt adhesive, the comprehensive cost is lower, the preparation method is simple, and the feasibility of large-scale commercial popularization is realized.
The invention is suitable for the automatic production of various books and magazines, has short curing time, excellent bonding performance, low hot-melt smell, good temperature resistance and stable physicochemical properties, is suitable for a roll-coating glue applying mode, and has excellent bonding effect on offset paper, coated paper, laminated paper and the like.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the present invention, the first and second substrates,
example 1
A low-cost quick perfect binding hot melt adhesive comprises the following components in percentage by weight:
olefin Polymer 125%
Olefin Polymer 220%
Olefin Polymer 32%
400283 percent of EVA resin
Reinforced rubber segment polymer MD 69514%
Tackifying resin P-11537.5%
No. 80 microcrystalline wax 2%
Fischer-Tropsch wax PX-1055%
10100.5 percent of antioxidant
1681% of antioxidant
0 percent of filler titanium dioxide.
A preparation method of a low-cost quick perfect-binding hot melt adhesive comprises the following steps:
step (1): preheating a reaction kettle: starting a reaction kettle for heating and starting stirring, wherein the oil temperature of the reaction kettle is set to be 250 ℃;
step (2): cooling the oil temperature of the reaction kettle to 160-170 ℃, adding 80 # microcrystalline wax, Fischer-Tropsch wax PX-105 antioxidant 1010 and antioxidant 168, and continuously stirring until all the components are completely melted;
and (3): raising the temperature of the reaction kettle oil to 250 ℃ and keeping the temperature, adding olefin polymer 1, olefin polymer 2, olefin polymer 3, EVA resin 40028 and reinforced rubber segment polymer MD6951, and stirring while vacuumizing until all the components are completely melted;
and (4): setting the oil temperature of the reaction kettle at 200 ℃, adding tackifying resin P-115, and stirring while vacuumizing until all components are completely melted;
and (5): fully stirring and uniformly mixing, vacuumizing a reaction system until no bubbles exist, introducing nitrogen to normal pressure, and stopping stirring to obtain the product.
Example 2
A low-cost quick perfect binding hot melt adhesive comprises the following components in percentage by weight:
olefin Polymer 127%
Olefin polymer 215%
Olefin Polymer 32%
400283 percent of EVA resin
Reinforced rubber segment polymer MD 69514%
Tackifying resin P-11537.5%
No. 80 microcrystalline wax 3%
Fischer-Tropsch wax PX-1054%
10100.5 percent of antioxidant
1681% of antioxidant
3 percent of filler titanium dioxide.
A preparation method of a low-cost quick perfect-binding hot melt adhesive comprises the following steps:
step (1): preheating a reaction kettle: starting a reaction kettle for heating and starting stirring, wherein the oil temperature of the reaction kettle is set to be 250 ℃;
step (2): cooling the oil temperature of the reaction kettle to 160-170 ℃, adding 80 # microcrystalline wax, Fischer-Tropsch wax PX-105 antioxidant 1010 and antioxidant 168, and continuously stirring until all the components are completely melted;
and (3): raising the temperature of the reaction kettle oil to 250 ℃ and keeping the temperature, adding olefin polymer 1, olefin polymer 2, olefin polymer 3, EVA resin 40028 and reinforced rubber segment polymer MD6951, and stirring while vacuumizing until all the components are completely melted;
and (4): setting the oil temperature of the reaction kettle at 200 ℃, adding tackifying resin P-115, and stirring while vacuumizing until all components are completely melted;
and (5): adding titanium dioxide as a filler, fully stirring and uniformly mixing, vacuumizing a reaction system until no bubbles exist, introducing nitrogen to normal pressure, and stopping stirring to obtain the product.
Example 3
A low-cost quick perfect binding hot melt adhesive comprises the following components in percentage by weight:
olefin Polymer 130%
Olefin polymer 215%
Olefin Polymer 32%
400283 percent of EVA resin
Reinforced rubber segment polymer MD 69514%
532035 percent of tackifying resin
No. 80 microcrystalline wax 2%
Fischer-Tropsch wax PX-1055%
10100.5 percent of antioxidant
1681% of antioxidant
2.5 percent of filler titanium dioxide.
A preparation method of a low-cost quick perfect-binding hot melt adhesive comprises the following steps:
step (1): preheating a reaction kettle: starting a reaction kettle for heating and starting stirring, wherein the oil temperature of the reaction kettle is set to be 250 ℃;
step (2): cooling the oil temperature of the reaction kettle to 160-170 ℃, adding 80 # microcrystalline wax, Fischer-Tropsch wax PX-105 antioxidant 1010 and antioxidant 168, and continuously stirring until all the components are completely melted;
and (3): raising the temperature of the reaction kettle oil to 250 ℃ and keeping the temperature, adding olefin polymer 1, olefin polymer 2, olefin polymer 3, EVA resin 40028 and reinforced rubber segment polymer MD6951, and stirring while vacuumizing until all the components are completely melted;
and (4): setting the oil temperature of the reaction kettle at 200 ℃, adding the tackifying resin 5320, and stirring while vacuumizing until all components are completely melted;
and (5): adding titanium dioxide as a filler, fully stirring and uniformly mixing, vacuumizing a reaction system until no bubbles exist, introducing nitrogen to normal pressure, and stopping stirring to obtain the product.
Example 4
A low-cost quick perfect binding hot melt adhesive comprises the following components in percentage by weight:
olefin Polymer 120%
Olefin Polymer 225%
Olefin Polymer 32%
400284 percent of EVA resin
Reinforced rubber segment polymer MD 69513%
532035 percent of tackifying resin
No. 80 microcrystalline wax 2%
Fischer-Tropsch wax PX-1055%
Antioxidant 10101%
1682% of antioxidant
1 percent of filler titanium dioxide.
A preparation method of a low-cost quick perfect-binding hot melt adhesive comprises the following steps:
step (1): preheating a reaction kettle: starting a reaction kettle for heating and starting stirring, wherein the oil temperature of the reaction kettle is set to be 250 ℃;
step (2): cooling the oil temperature of the reaction kettle to 160-170 ℃, adding 80 # microcrystalline wax, Fischer-Tropsch wax PX-105 antioxidant 1010 and antioxidant 168, and continuously stirring until all the components are completely melted;
and (3): raising the temperature of the reaction kettle oil to 250 ℃ and keeping the temperature, adding olefin polymer 1, olefin polymer 2, olefin polymer 3, EVA resin 40028 and reinforced rubber segment polymer MD6951, and stirring while vacuumizing until all the components are completely melted;
and (4): setting the oil temperature of the reaction kettle at 200 ℃, adding the tackifying resin 5320, and stirring while vacuumizing until all components are completely melted;
and (5): adding titanium dioxide as a filler, fully stirring and uniformly mixing, vacuumizing a reaction system until no bubbles exist, introducing nitrogen to normal pressure, and stopping stirring to obtain the product.
Comparative example 1: the common EVA type perfect binding hot melt adhesive is sold in the market.
Comparative example 2: commercially available rapid EVA type perfect binding hot melt adhesive
Experimental example: the products of example 1, example 2, example 3, example 4, comparative example 1 and comparative example 2 were selected and compared for seven test items of Brookfield viscosity, softening point, curing time, hot melt odor, cold resistance, tensile strength and binding strength.
The experimental method comprises the following steps:
1. brookfield viscosity test method: reference is made to GB/T2794-2013.
2. Softening point test method: reference is made to GB/T4507-2014.
3. Odor test method: reference is made to ASTM D4339-2001.
4. Curing time test method: after the glue is melted, the glue is coated on one paperboard in a scraping way, and then the other paperboard is used for jointing. And (3) timing from the completion of the lamination, and stripping from one end until the base material is broken, wherein the recorded time is the curing time of the adhesive.
5. Cold resistance test method: and (3) preparing a hot melt adhesive standard sample sheet, folding the hot melt adhesive standard sample sheet in a refrigerator with a settable temperature for 4 hours, and recording the temperature of the sample sheet which can be broken as the cold resistance temperature.
6. Tensile strength test method: reference is made to GB/T 528-1998.
7. The binding strength test method comprises the following steps: 157g of coated paper books are taken as a standard sample, the middle page of the tested glued nail books passes through a thin strip seam in the middle of a flat plate under the environment of 23 +/-3 ℃, other pages on two sides are fixed to be flatly paved on two sides of the flat plate, the middle page is fixed by a clamp, the clamp carries out tension detection at the speed of less than or equal to 5mm/S until the page falls off and the maximum tension value F is recorded, and the ratio of the tension F to the page length L is the binding strength.
The experimental results are as follows: see table 1 below for details
TABLE 1 specific experimental results for hot melt adhesives
| Items of embodiment | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 | Comparative example 2 |
| Brookfield viscosity (cps/160 ℃ C.) | 6500 | 6800 | 6900 | 6600 | 5000 | 6500 |
| Softening Point (. degree. C.) | 130 | 125 | 127 | 125 | 90 | 108 |
| Curing time (S) | 3 | 2.5 | 3 | 4 | 6 | 3.5 |
| Hot melt smell (180 ℃ C.) | Small | Small | Small | Small | Big (a) | Big (a) |
| Cold resistance (. degree.C.) | -8 | -6 | -7 | -7 | -5 | -5 |
| Tensile Strength (MPa) | 4.5 | 4.8 | 4.8 | 4.6 | 3.5 | 4.2 |
| Binding strength (N/cm) | 5.9 | 6.2 | 6.1 | 6.0 | 4.5 | 5.5 |
Therefore, the brookfield viscosity of the hot melt adhesive in the embodiments 1 to 4 of the present invention is: 6800 + -500/160 deg.C, softening point: 125 +/-10 ℃, and the curing time is as follows: 2.5-4 s, the adhesive has moderate melt viscosity, good bonding performance, fast curing, low odor and good temperature resistance, has great performance advantage in the high-speed automatic production of wireless binding of books, magazines and the like, and can completely replace the traditional EVA type wireless binding hot melt adhesive to be used in the wireless binding field to improve the quality of products and the friendliness of the production environment.
In conclusion, the olefin polymer is selected as the main component of the novel low-cost quick binding hot melt adhesive, and simultaneously the EVA resin with good compatibility and the reinforced rubber chain polymer are compounded to form the composite matrix component, so that the cohesive strength of the adhesive is ensured, and the wettability of the adhesive to the base material is enhanced; the comprehensive application of a proper amount of microcrystalline wax and Fischer-Tropsch wax reduces the wiredrawing property and the melt viscosity of the composite matrix component, improves the fluidity and the curing speed of the hot melt adhesive, and greatly avoids the reduction of the low temperature resistance; the use of the proper tackifying resin provides higher peel strength for the hot melt adhesive and provides enough guarantee for the hot melt adhesive to generate good bonding effect on various bonding substrates. The invention is suitable for the automatic production of various books and magazines, has short curing time, excellent bonding performance, low hot-melt smell, good temperature resistance and stable physicochemical properties, is suitable for a roll-coating glue applying mode, and has excellent bonding effect on offset paper, coated paper, laminated paper and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The low-cost quick perfect-binding hot melt adhesive is characterized by comprising the following components in percentage by weight:
35-55% of olefin polymer
1-8% of EVA resin
2-10% of reinforced rubber chain segment polymer
30-55% of tackifying resin
0 to 10 percent of microcrystalline wax
3 to 10 percent of Fischer-Tropsch wax
1 to 5 percent of antioxidant
0-5% of a filler;
the olefin polymer comprises a metallocene olefin polymer and an alpha-olefin copolymer;
the metallocene olefin polymer is a copolymer of low-crystallinity propylene and ethylene, and has the following density: and (2) carrying out high-speed harvest at the speed of 0.855-0.875 g/cm, and MFR: 3-1000 g/10 min;
the alpha-olefin copolymer is a copolymer which is obtained by grafting an alpha-olefin oligomer with the average molecular weight of 3000-10000 by using ethylene, propylene, butylene, ester or acid anhydride under the action of a catalyst, and has the average molecular weight of 10000-30000 and the softening point of 80-180 ℃;
the EVA resin is an ethylene-vinyl acetate copolymer;
the reinforced rubber chain segment polymer is a hydrogenated styrene block copolymer;
the tackifying resin is selected from any one or mixture of more of aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic hydrocarbon, modified hydrocarbon resin and hydrogenated derivative thereof, terpene and hydrogenated derivative thereof, rosin and modified rosin and hydrogenated derivative thereof;
the microcrystalline wax is an amorphous solid wax obtained by further refining a product obtained by fractionating petroleum serving as a raw material, and the microcrystalline wax mainly contains C13-70 branched chain saturated hydrocarbon and has a melting point of 60-95 ℃;
the Fischer-Tropsch wax is an alkane polymer synthesized by a Fischer-Tropsch process, the average molecular weight is 800-1000, and the melt viscosity at 140 ℃ is 6-10;
the antioxidant is one or a mixture of more of hindered phenol or hindered phenol combined with an auxiliary antioxidant;
the filler is one or a mixture of two of calcium carbonate, titanium dioxide and talcum powder.
2. The low-cost quick perfect-binding hot melt adhesive according to claim 1, wherein the hot melt adhesive comprises the following components by weight percent:
35 to 50 percent of olefin polymer
1-5% of EVA resin
2-8% of reinforced rubber chain segment polymer
30-45% of tackifying resin
1 to 5 percent of microcrystalline wax
3 to 8 percent of Fischer-Tropsch wax
1.5 to 3 percent of antioxidant
0-3% of filler.
3. The low-cost quick perfect binding hot melt adhesive according to claim 1, wherein the metallocene olefin polymer is preferably any one or a mixture of more of a metallocene olefin polymer 8880, a metallocene olefin polymer 8780 and a metallocene olefin polymer 8380;
the alpha-olefin copolymer is preferably any one or a mixture of APAO792, APAO608 and APAO 888.
4. The low-cost quick perfect binding hot melt adhesive according to claim 1, wherein the EVA resin is preferably an ethylene-vinyl acetate copolymer with MI = 1.5-800 g/10min and VA = 20-40%.
5. The low-cost quick perfect binding hot melt adhesive according to claim 1, wherein the tackifying resin is preferably any one or a mixture of hydrogenated or semi-hydrogenated C5 petroleum resin, C5/C9 petroleum resin, terpene resin with color less than No. 3 color by melt Gardner color, terpene styrene resin and hydrogenated rosin ester;
the softening point of the tackifying resin by a ring and ball method is 100-140 ℃.
6. The low-cost quick perfect binding hot melt adhesive according to claim 1, wherein the microcrystalline wax is preferably microcrystalline wax with a melting point of 70-80 ℃.
7. The low-cost, fast-perfect-binding hot melt adhesive according to claim 1, wherein said fischer-tropsch wax is preferably any one of fischer-tropsch wax PX-105 or fischer-tropsch wax PX-100.
8. The low-cost quick perfect binding hot melt adhesive according to claim 1, wherein the antioxidant is preferably one or a mixture of two of antioxidant 1010 and antioxidant 168.
9. The low-cost rapid perfect-binding hot melt adhesive according to claim 1, wherein the hot melt adhesive has a Brookfield viscosity of: 6800 + -500/160 deg.C, softening point: 125 +/-10 ℃, and the curing time is as follows: 2.5-4 s.
10. The preparation method of the low-cost quick perfect-binding hot melt adhesive according to any one of claims 1 to 9, characterized in that the specific preparation method of the hot melt adhesive comprises the following steps:
step (1): preheating a reaction kettle: starting a reaction kettle for heating and starting stirring, wherein the oil temperature of the reaction kettle is set to be 250 ℃;
step (2): cooling the temperature of the reaction kettle to 160-170 ℃, adding microcrystalline wax, Fischer-Tropsch wax and an antioxidant, and continuously stirring until all the components are completely melted;
and (3): raising the temperature of the reaction kettle oil to 250 ℃ and keeping the temperature, adding the olefin polymer, the EVA resin and the reinforced rubber chain segment polymer, and stirring while vacuumizing until all the components are completely melted;
and (4): setting the oil temperature of the reaction kettle at 200 ℃, adding tackifying resin, and stirring while vacuumizing until all components are completely melted;
and (5): adding filler according to actual conditions, fully stirring and uniformly mixing, vacuumizing a reaction system until no bubbles exist, introducing nitrogen to normal pressure, and stopping stirring to obtain the product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010280298.1A CN112322234A (en) | 2020-04-10 | 2020-04-10 | Low-cost quick-binding hot melt adhesive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010280298.1A CN112322234A (en) | 2020-04-10 | 2020-04-10 | Low-cost quick-binding hot melt adhesive and preparation method thereof |
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| CN112322234A true CN112322234A (en) | 2021-02-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113755116A (en) * | 2021-07-29 | 2021-12-07 | 宁夏新辰新材料有限公司 | Wax special for hot melt adhesive and preparation method thereof |
| CN115029087A (en) * | 2022-06-10 | 2022-09-09 | 松川工业材料(江苏)有限公司 | Hot melt adhesive for BOPP (biaxially-oriented polypropylene) film-coated packaging and preparation method thereof |
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| CN103562332A (en) * | 2011-04-08 | 2014-02-05 | 波士胶公司 | Polyolefin based hot melt adhesive containing a solid plasticizer |
| US20160215176A1 (en) * | 2015-01-23 | 2016-07-28 | Bostik, Inc. | Metallocene Polyolefin Based Low Activation Temperature Heat Seal Hot Melt Adhesive |
| CN110079255A (en) * | 2013-09-25 | 2019-08-02 | 波士胶公司 | The hot-melt adhesive of polyolefin with functionalized metallocene catalyst |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351104A (en) * | 2000-10-26 | 2002-05-29 | 中国石油化工股份有限公司 | Hot fusible adhesive for package |
| CN103562332A (en) * | 2011-04-08 | 2014-02-05 | 波士胶公司 | Polyolefin based hot melt adhesive containing a solid plasticizer |
| CN110079255A (en) * | 2013-09-25 | 2019-08-02 | 波士胶公司 | The hot-melt adhesive of polyolefin with functionalized metallocene catalyst |
| US20160215176A1 (en) * | 2015-01-23 | 2016-07-28 | Bostik, Inc. | Metallocene Polyolefin Based Low Activation Temperature Heat Seal Hot Melt Adhesive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113755116A (en) * | 2021-07-29 | 2021-12-07 | 宁夏新辰新材料有限公司 | Wax special for hot melt adhesive and preparation method thereof |
| CN115029087A (en) * | 2022-06-10 | 2022-09-09 | 松川工业材料(江苏)有限公司 | Hot melt adhesive for BOPP (biaxially-oriented polypropylene) film-coated packaging and preparation method thereof |
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