CN113528061B - Formula and process of EVA hot melt adhesive for book binding - Google Patents
Formula and process of EVA hot melt adhesive for book binding Download PDFInfo
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- CN113528061B CN113528061B CN202111002260.9A CN202111002260A CN113528061B CN 113528061 B CN113528061 B CN 113528061B CN 202111002260 A CN202111002260 A CN 202111002260A CN 113528061 B CN113528061 B CN 113528061B
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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
- 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
- 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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to the field of EVA hot melt adhesives, and particularly relates to an EVA hot melt adhesive for book binding. The EVA hot melt adhesive comprises the following raw materials in parts by weight: 19-27 parts of wax, 28-52 parts of tackifying resin, 33-48 parts of EVA resin and 2-8 parts of auxiliary agent. The preparation method comprises heating and stirring wax, low density polyethylene resin and tackifying resin to obtain mixture a; then adding EVA resin and 1/3-1/2 auxiliary agent, heating to 250 ℃, and stirring to obtain a mixture b; adding the rest of the auxiliary agent into the mixture b, and melting at 220 ℃ to obtain a mixture c; and finally, extruding and molding the mixture, solidifying and granulating to obtain the material. The EVA hot melt adhesive for book binding provided by the invention has the characteristics of high bonding strength, good thermal stability, high brittle fracture resistance, high peel strength and high tensile strength.
Description
Technical Field
The invention belongs to the field of EVA hot melt adhesives, and particularly relates to an EVA hot melt adhesive formula for book binding and a process thereof.
Background
The perfect binding technology is a binding method for books and periodicals by using adhesive to bind book blocks into books. It is not only suitable for paperback, but also suitable for bonding partial hardcover books. The books and periodicals processed by the technology have smooth appearance, and have the characteristics of labor and material saving, good binding quality, high processing speed and wide application range. The wireless adhesive binding process is widely applied in China and basically replaces an iron wire flat binding process.
The quality of the wireless adhesive bound books and periodicals is closely related to the quality of the hot melt adhesive, the process conditions of the processing process and other factors. In the process of binding books wirelessly, the quality problems of loose pages, brittle fracture, spine deformation, infirm bonding and the like of the books and periodicals bound by glue are caused by the performance of the hot melt adhesive.
Chinese invention patent CN109385230B discloses a bookbinding process for book and periodical printing, wherein the hot melt adhesive comprises EVA with VA content of 24-28%, rosin resin, EVA with VA content of 40-45%, ethylene-1-octene copolymer, ethylene-ethyl acrylate copolymer, maleic rosin, zinc oxide powder, pentaerythritol, wax, bentonite, antioxidant and antiblocking agent. After the different VA contents are mixed with other raw materials, the obtained hot melt adhesive has good bonding strength and fatigue bending resistance. But its bond strength and tensile strength have yet to be improved.
Chinese invention patent CN109401683B discloses a hot melt adhesive for book binding and a preparation method thereof, wherein the raw materials of the hot melt adhesive comprise 33-48 parts of modified EVA resin, 19-27 parts of paraffin, 28-52 parts of tackifier, 0.2-0.5 part of antioxidant and 10-40 parts of filler. The hot melt adhesive for book binding provided by the invention has the advantages of high bonding strength, oxidation and aging resistance and strong durability, but also has the problem that the book is easy to deform due to insufficient tensile strength.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the EVA hot melt adhesive for book binding, which has the characteristics of high bonding strength, high peel strength and high tensile strength.
The purpose of the invention is realized by the following technical scheme:
the EVA hot melt adhesive for book binding comprises the following raw materials in parts by weight: 19-27 parts of wax, 28-52 parts of tackifying resin, 33-48 parts of EVA resin and 0-8 parts of auxiliary agent.
Preferably, the wax is mixed in a weight ratio of 10-15: 1-3: 6-10 of a mixture of paraffin wax, Fischer-Tropsch wax and polyethylene wax.
Preferably, the tackifying resin is a resin prepared from the following components in a weight ratio of 1: 3-8 of 145 resin with a C5C9 resin.
Preferably, the EVA resin comprises 12-28 parts of EVA with the vinyl acetate content of 24-26%, 10-27 parts of EVA with the vinyl acetate content of 40-42% and 3-8 parts of low-density polyethylene resin.
Preferably, the auxiliary agent comprises an antioxidant and a filler; the antioxidant is a phenol antioxidant, and the filler is at least one of titanium dioxide and talcum powder; wherein the weight ratio of the antioxidant to the filler is 1-2: 10.
The invention also aims to provide a preparation method of the EVA hot melt adhesive for book and periodical binding, which comprises the following steps:
(1) heating and stirring wax and tackifying resin to obtain a mixture a;
(2) then adding EVA resin and 1/3-1/2 auxiliary agent, heating to 240-260 ℃, and stirring to obtain a mixture b;
(3) adding the rest of the auxiliary agent into the mixture b, and melting at the temperature of 210 ℃ and 230 ℃ to obtain a mixture c;
(4) and extruding and molding the mixture, solidifying and cutting into granules to obtain the product.
Preferably, the heating temperature in the step (1) is 210-230 ℃, the stirring speed is 80-150r/min, and the stirring time is 5-15 min.
Preferably, the temperature rising speed in the step (2) is 5 ℃/10min, the stirring time is 40-60min, and the stirring speed is 80-150 r/min.
Preferably, the temperature of the extrusion molding in the step (4) is 120 ℃.
The invention also aims to provide the application of the EVA hot melt adhesive for book binding in book binding.
The invention has the beneficial effects that:
(1) according to the invention, through the compatibility of specific hot melt adhesive raw materials, the finally prepared hot melt adhesive has high bonding strength, strong peel strength and tensile strength, is an excellent material for book binding, especially for the preparation of copper plate back glue, and has wide market prospect.
(2) According to the invention, key raw materials such as tackifying resin, EVA resin, wax and the like are further researched, and the fact that the optimal hot melt adhesive performance can be achieved by compounding specific raw materials is found;
(3) the invention also researches the preparation method of the hot melt adhesive for book binding, and finds that the charging sequence and the heating mode of the method can avoid that the hot melt adhesive is doped with bubbles with different sizes in the mixing process to influence the performance of the hot melt adhesive.
Detailed Description
The invention will be further illustrated with reference to specific examples. All the raw materials are conventional products sold in the market, wherein the hot melt adhesive can be prepared from low-density polyethylene resins of different types.
Example 1 the hot melt adhesive raw material composition formula is shown in table 1.
Table 1 raw material component recipe
The preparation method comprises the following steps:
(1) mixing paraffin, Fischer-Tropsch wax, polyethylene wax, 145 resin and C5C9 resin, and stirring at 120r/min for 10min to obtain a mixture a;
(2) then adding EVA resin and 1/2 auxiliary agent, heating to 250 ℃ at the speed of 5 ℃/10min, and stirring for 50min at 120r/min to obtain a mixture b; wherein the auxiliary agent is a mixture of a phenolic antioxidant and talcum powder;
(3) adding the rest auxiliary agent into the mixture b, and melting at 220 ℃ to obtain a mixture c;
(4) and cooling the mixture c to 120 ℃, extruding, molding, solidifying and cutting into granules to obtain the composite material.
Example 2 the hot melt adhesive raw material composition formula is shown in table 2.
Table 2 raw material component recipe
The preparation method comprises the following steps:
(1) mixing paraffin, Fischer-Tropsch wax, polyethylene wax, 145 resin and C5C9 resin, and stirring at 80r/min for 15min to obtain a mixture a;
(2) then adding EVA resin and 1/23 auxiliary agent, heating to 240 ℃ at the speed of 5 ℃/10min, and stirring for 40min at the speed of 150r/min to obtain a mixture b; wherein the auxiliary agent is a mixture of a phenolic antioxidant and talcum powder;
(3) adding the rest of the auxiliary agent into the mixture b, and melting at 210 ℃ to obtain a mixture c;
(4) and cooling the mixture c to 120 ℃, extruding, molding, solidifying and cutting into granules to obtain the composite material.
Example 3 copper plate backing adhesive
The raw material composition formula is shown in table 3.
Table 3 raw material composition formula
The preparation method comprises the following steps:
(1) mixing paraffin, Fischer-Tropsch wax, polyethylene wax, 145 resin and C5C9 resin, and stirring at 150r/min for 5min to obtain a mixture a;
(2) then adding EVA resin and 1/2 auxiliary agent, heating to 260 ℃ at the speed of 5 ℃/10min, and stirring for 60min at the speed of 150r/min to obtain a mixture b; wherein the auxiliary agent is a mixture of a phenolic antioxidant and talcum powder;
(3) adding the rest auxiliary agent into the mixture b, and melting at 230 ℃ to obtain a mixture c;
(4) and cooling the mixture c to 120 ℃, extruding, molding, solidifying and granulating to obtain the composite material.
Comparative example 1
The comparative example is different from example 1 in the ratio of 145 resin to C5C9 resin, and the specific raw material components are shown in Table 4. The rest of the process was identical to example 1.
Table 4 raw material component recipe
Comparative example 2
The comparative example differs from example 1 in that the Fischer-Tropsch wax and the low density polyethylene wax were removed and the specific raw material component formulation is shown in Table 5. The rest of the process was identical to example 1.
Table 5 raw material component recipe
Comparative example 3
This comparative example differs from example 1 in the specific composition of the EVA resin. The raw material composition formula is shown in table 6. The rest of the process was identical to example 1.
Table 6 raw material composition formula
Test examples Performance test
The hot melt adhesives prepared in examples 1-3 and comparative examples 1-3 were tested for their performance. The test method adopts the industrial standard CY/T40-2007 requirements and detection methods for using EVA type hot melt adhesive for book binding, and the 180 ℃ peel strength is tested according to GB/T2792-2014 test method determination of peel strength of adhesive tape. The specific results are shown in Table 6.
TABLE 6 Hot melt adhesive Performance test results
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the concept of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.
Claims (5)
1. The EVA hot melt adhesive for book binding is characterized by comprising the following raw materials in parts by weight: 14 parts of paraffin, 3 parts of Fischer-Tropsch wax, 6 parts of polyethylene wax, 7 parts of 145 resin, 21 parts of C5C9 resin, 12 parts of EVA resin with the VA content of 26%, 27 parts of EVA resin with the VA content of 42%, N2108 parts of low-density polyethylene resin, Sonox (TM) -10100.5 parts of phenolic antioxidant and 1.5 parts of talcum powder.
2. The EVA hot melt adhesive for book binding is characterized in that the EVA hot melt adhesive is prepared from the following raw materials in parts by weight: 18 parts of paraffin, 2 parts of Fischer-Tropsch wax, 8 parts of polyethylene wax, 5 parts of 145 resin, 30 parts of C5C9 resin, 15 parts of EVA resin with 26% of VA content, 15 parts of EVA resin with 42% of VA content, N2103 parts of low-density polyethylene resin, 4 parts of phenolic antioxidant Sonox (TM) -10100.5 and talcum powder.
3. The preparation method of the EVA hot melt adhesive for book and periodical binding according to claim 1, which is characterized by comprising the following steps:
(1) mixing paraffin, Fischer-Tropsch wax, polyethylene wax, 145 resin and C5C9 resin, and stirring at 120r/min for 10min to obtain a mixture a;
(2) then adding EVA resin and 1/2 auxiliary agent, heating to 250 ℃ at the speed of 5 ℃/10min, and stirring for 50min at 120r/min to obtain a mixture b; wherein the auxiliary agent is a mixture of a phenolic antioxidant and talcum powder;
(3) adding the rest of the auxiliary agent into the mixture b, and melting at 220 ℃ to obtain a mixture c;
(4) and cooling the mixture c to 120 ℃, extruding, molding, solidifying and cutting into granules to obtain the composite material.
4. The preparation method of the EVA hot melt adhesive for book and periodical binding according to claim 2 is characterized by comprising the following steps:
(1) mixing paraffin, Fischer-Tropsch wax, polyethylene wax, 145 resin and C5C9 resin, and stirring at 150r/min for 5min to obtain a mixture a;
(2) then adding EVA resin and 1/2 auxiliary agent, heating to 260 ℃ at the speed of 5 ℃/10min, and stirring for 60min at the speed of 150r/min to obtain a mixture b; wherein the auxiliary agent is a mixture of a phenolic antioxidant and talcum powder;
(3) adding the rest auxiliary agent into the mixture b, and melting at 230 ℃ to obtain a mixture c;
(4) and cooling the mixture c to 120 ℃, extruding, molding, solidifying and cutting into granules to obtain the composite material.
5. The use of the EVA hot melt adhesive for book binding according to any one of claims 1-2 in book binding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111002260.9A CN113528061B (en) | 2021-08-30 | 2021-08-30 | Formula and process of EVA hot melt adhesive for book binding |
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| CN202111002260.9A CN113528061B (en) | 2021-08-30 | 2021-08-30 | Formula and process of EVA hot melt adhesive for book binding |
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| CN113528061B true CN113528061B (en) | 2022-06-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115895506A (en) * | 2022-09-14 | 2023-04-04 | 上海路嘉胶粘剂有限公司 | A weather-resistant hot-melt adhesive for bookbinding and its preparation process |
| CN115521732B (en) * | 2022-10-31 | 2024-04-26 | 靖江市金马胶粘制品制造有限公司 | EVA hot melt adhesive for bookbinding and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5041482A (en) * | 1988-07-26 | 1991-08-20 | Adhesive Technologies | Cool melt glue |
| US6794443B2 (en) * | 2003-02-14 | 2004-09-21 | National Starch And Chemical Investment Holding Corporation | Hot melt adhesive composition |
| CN102925080A (en) * | 2012-11-29 | 2013-02-13 | 无锡市万力粘合材料有限公司 | Book thermoplastic binding hot melt glue used at low temperature and preparation method thereof |
| CN109385230B (en) * | 2018-10-23 | 2020-11-20 | 北京市庆全新光印刷有限公司 | Cementing process for book and periodical printing |
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