CN107384269B - Sealant for making paper cup and preparation method thereof - Google Patents
Sealant for making paper cup and preparation method thereof Download PDFInfo
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- CN107384269B CN107384269B CN201710586799.0A CN201710586799A CN107384269B CN 107384269 B CN107384269 B CN 107384269B CN 201710586799 A CN201710586799 A CN 201710586799A CN 107384269 B CN107384269 B CN 107384269B
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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
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/003—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F263/00—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00
- C08F263/02—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00 on to polymers of vinyl esters with monocarboxylic acids
- C08F263/04—Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group C08F18/00 on to polymers of vinyl esters with monocarboxylic acids on to polymers of vinyl acetate
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Detergent Compositions (AREA)
- Paper (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a sealant for manufacturing paper cups and a preparation method thereof, wherein the sealant is prepared from the following raw materials in parts by weight: 10-18 parts of polyvinyl alcohol, 15-20 parts of vinyl acetate, 10-14 parts of ethylene, 10-16 parts of acrylic acid, 8-12 parts of baking soda, 5-7 parts of rubber resin, 2-4 parts of white mineral oil, 35-40 parts of water, 0.5-0.8 part of emulsifier and 0.5-0.6 part of initiator. The sealant has good waterproof performance and permeability resistance, can keep good weather resistance at high temperature, is not deformed or softened, is non-toxic and free of peculiar smell, and is a sealant for manufacturing paper cups with excellent performance.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a sealant for manufacturing paper cups and a preparation method thereof.
Background
The paper cup material has the advantages of light weight, leakage prevention, attractive printing, convenience in processing and the like, the paper cup prepared from the paper cup material can be used for containing various drinks such as tea, fruit juice, coffee, milk, soybean milk, porridge and the like, and the paper cup is widely used in daily life and office due to the characteristics of light sanitation and the like.
The paper cup material is usually formed by compounding multiple layers of materials, the multiple layers of materials need to be bonded by using a sealant in the compounding process, the sealant is generally required to have the characteristics of strong adhesion, high temperature resistance, corrosion resistance, no toxicity, no odor, high chemical stability and the like due to the particularity of the use of the paper cup, the existing sealant for the paper cup has poor high temperature resistance, is easy to soften and amorphous at high temperature, has some peculiar smells, and cannot meet the requirements of users.
Disclosure of Invention
The invention aims to provide a sealant for manufacturing paper cups, which has the advantages of no toxicity, no odor, strong bonding force, high temperature resistance and the like.
In order to achieve the purpose, the invention adopts the technical scheme that:
the sealant for manufacturing the paper cup is prepared from the following raw materials in parts by weight: 10-18 parts of polyvinyl alcohol, 15-20 parts of vinyl acetate, 10-14 parts of ethylene, 10-16 parts of acrylic acid, 8-12 parts of baking soda, 5-7 parts of rubber resin, 2-4 parts of white mineral oil, 35-40 parts of water, 0.5-0.8 part of emulsifier and 0.5-0.6 part of initiator;
the emulsifier is prepared from the following components in parts by weight: 15-20 parts of starch, 5-13 parts of glycerol, 8-12 parts of sorbitol, 1-3 parts of sodium citrate, 1-1.2 parts of octenyl succinic anhydride and 10-15 parts of water.
The initiator is water-soluble thermal decomposition type peroxide.
The sealant for manufacturing the paper cup is prepared from the following raw materials in parts by weight: 10 parts of polyvinyl alcohol, 15 parts of vinyl acetate, 10 parts of ethylene, 10 parts of acrylic acid, 8 parts of baking soda, 5 parts of rubber resin, 2 parts of white mineral oil, 35 parts of water, 0.5 part of emulsifier and 0.5 part of initiator;
the emulsifier is prepared from the following components in parts by weight: 15 parts of starch, 5 parts of glycerol, 8 parts of sorbitol, 1 part of sodium citrate, 1 part of octenyl succinic anhydride and 10 parts of water.
The invention also provides a preparation method of the sealant for making the paper cup, which comprises the following steps:
1: preparing raw materials according to the mass of each component, heating polyvinyl alcohol to melt, adding water, uniformly stirring, raising the temperature to 80-100 ℃, adding 50-60% by mass of vinyl acetate, stirring for 5-10 minutes, standing and cooling to obtain a solution A;
2: adding the rest vinyl acetate, ethylene, emulsifier and initiator into a polymerization reactor, introducing inert gas, performing polymerization reaction under the pressure of 1-1.5MPa and the temperature of 50-70 ℃, and performing neutralization, filtration and water washing to obtain vinyl acetate-ethylene copolymer emulsion;
3: mixing the solution A with vinyl acetate-ethylene copolymer emulsion, adding acrylic acid, stirring uniformly, adding baking soda, continuing stirring uniformly, and standing until bubbles are eliminated to obtain a solution B;
4: adding rubber resin into the solution B, raising the temperature to 120-150 ℃, and stirring for reaction for 1-2 hours to obtain a finished product.
The inert gas is argon or helium.
The preparation method of the emulsifier comprises the following steps: mixing sodium citrate, sorbitol and water, heating to 50-60 deg.C, stirring thoroughly until the solid is completely dissolved to obtain mixed solution; preheating glycerol to 25-30 ℃, adding starch, and fully stirring to obtain white viscous liquid with uniform texture; mixing the mixed solution with white viscous liquid, adding octenyl succinic anhydride, heating to 60-70 deg.C, and stirring to obtain paste; and (4) performing bus sterilization on the paste to obtain the emulsifier.
The temperature for sterilizing the bus is 70-80 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1: the sealant has good waterproof performance and low water vapor transmission rate, and can prevent paper cups from leaking;
2: the sealant disclosed by the invention is good in adhesiveness, non-toxic, odorless, high-temperature resistant, cold resistant, acid-base corrosion resistant, easy to coat when used as an adhesive layer, good in weather resistance and high in chemical stability, and is an excellent sealant for manufacturing paper cups.
Detailed Description
Example 1
The sealant for manufacturing the paper cup is prepared from the following raw materials in parts by weight: 10 parts of polyvinyl alcohol, 15 parts of vinyl acetate, 10 parts of ethylene, 10 parts of acrylic acid, 8 parts of baking soda, 5 parts of rubber resin, 2 parts of white mineral oil, 35 parts of water, 0.5 part of emulsifier and 0.5 part of initiator;
the emulsifier is prepared from the following components in parts by weight: 15 parts of starch, 5 parts of glycerol, 8 parts of sorbitol, 1 part of sodium citrate, 1 part of octenyl succinic anhydride and 10 parts of water.
The initiator is water-soluble thermal decomposition type peroxide.
The invention also provides a preparation method of the sealant for making the paper cup, which comprises the following steps:
1: preparing raw materials according to the mass of each component, heating polyvinyl alcohol to melt, adding water, uniformly stirring, raising the temperature to 80-100 ℃, adding 50-60% by mass of vinyl acetate, stirring for 5-10 minutes, standing and cooling to obtain a solution A;
2: adding the rest vinyl acetate, ethylene, emulsifier and initiator into a polymerization reactor, introducing inert gas, performing polymerization reaction under the pressure of 1-1.5MPa and the temperature of 50-70 ℃, and performing neutralization, filtration and water washing to obtain vinyl acetate-ethylene copolymer emulsion;
3: mixing the solution A with vinyl acetate-ethylene copolymer emulsion, adding acrylic acid, stirring uniformly, adding baking soda, continuing stirring uniformly, and standing until bubbles are eliminated to obtain a solution B;
4: adding rubber resin into the solution B, raising the temperature to 120-150 ℃, and stirring for reaction for 1-2 hours to obtain a finished product.
The inert gas is argon or helium.
The preparation method of the emulsifier comprises the following steps: mixing sodium citrate, sorbitol and water, heating to 50-60 deg.C, stirring thoroughly until the solid is completely dissolved to obtain mixed solution; preheating glycerol to 25-30 ℃, adding starch, and fully stirring to obtain white viscous liquid with uniform texture; mixing the mixed solution with white viscous liquid, adding octenyl succinic anhydride, heating to 60-70 deg.C, and stirring to obtain paste; and (4) performing bus sterilization on the paste to obtain the emulsifier.
The temperature for sterilizing the bus is 70-80 ℃.
Example 2
The sealant for manufacturing the paper cup is prepared from the following raw materials in parts by weight: 18 parts of polyvinyl alcohol, 20 parts of vinyl acetate, 14 parts of ethylene, 16 parts of acrylic acid, 12 parts of baking soda, 7 parts of rubber resin, 4 parts of white mineral oil, 40 parts of water, 0.8 part of emulsifier and 0.6 part of initiator;
the emulsifier is prepared from the following components in parts by weight: 20 parts of starch, 13 parts of glycerol, 12 parts of sorbitol, 3 parts of sodium citrate, 1.2 parts of octenyl succinic anhydride and 15 parts of water.
The initiator is water-soluble thermal decomposition type peroxide.
The invention also provides a preparation method of the sealant for making the paper cup, which comprises the following steps:
1: preparing raw materials according to the mass of each component, heating polyvinyl alcohol to melt, adding water, uniformly stirring, raising the temperature to 80-100 ℃, adding 50-60% by mass of vinyl acetate, stirring for 5-10 minutes, standing and cooling to obtain a solution A;
2: adding the rest vinyl acetate, ethylene, emulsifier and initiator into a polymerization reactor, introducing inert gas, performing polymerization reaction under the pressure of 1-1.5MPa and the temperature of 50-70 ℃, and performing neutralization, filtration and water washing to obtain vinyl acetate-ethylene copolymer emulsion;
3: mixing the solution A with vinyl acetate-ethylene copolymer emulsion, adding acrylic acid, stirring uniformly, adding baking soda, continuing stirring uniformly, and standing until bubbles are eliminated to obtain a solution B;
4: adding rubber resin into the solution B, raising the temperature to 120-150 ℃, and stirring for reaction for 1-2 hours to obtain a finished product.
The inert gas is argon or helium.
The preparation method of the emulsifier comprises the following steps: mixing sodium citrate, sorbitol and water, heating to 50-60 deg.C, stirring thoroughly until the solid is completely dissolved to obtain mixed solution; preheating glycerol to 25-30 ℃, adding starch, and fully stirring to obtain white viscous liquid with uniform texture; mixing the mixed solution with white viscous liquid, adding octenyl succinic anhydride, heating to 60-70 deg.C, and stirring to obtain paste; and (4) performing bus sterilization on the paste to obtain the emulsifier.
The temperature for sterilizing the bus is 70-80 ℃.
Example 3
The sealant for manufacturing the paper cup is prepared from the following raw materials in parts by weight: 15 parts of polyvinyl alcohol, 18 parts of vinyl acetate, 12 parts of ethylene, 14 parts of acrylic acid, 10 parts of baking soda, 6 parts of rubber resin, 3 parts of white mineral oil, 36 parts of water, 0.6 part of emulsifier and 0.5 part of initiator;
the emulsifier is prepared from the following components in parts by weight: 18 parts of starch, 9 parts of glycerol, 11 parts of sorbitol, 2 parts of sodium citrate, 1.1 parts of octenyl succinic anhydride and 13 parts of water.
The initiator is water-soluble thermal decomposition type peroxide.
The invention also provides a preparation method of the sealant for making the paper cup, which comprises the following steps:
1: preparing raw materials according to the mass of each component, heating polyvinyl alcohol to melt, adding water, uniformly stirring, raising the temperature to 80-100 ℃, adding 50-60% by mass of vinyl acetate, stirring for 5-10 minutes, standing and cooling to obtain a solution A;
2: adding the rest vinyl acetate, ethylene, emulsifier and initiator into a polymerization reactor, introducing inert gas, performing polymerization reaction under the pressure of 1-1.5MPa and the temperature of 50-70 ℃, and performing neutralization, filtration and water washing to obtain vinyl acetate-ethylene copolymer emulsion;
3: mixing the solution A with vinyl acetate-ethylene copolymer emulsion, adding acrylic acid, stirring uniformly, adding baking soda, continuing stirring uniformly, and standing until bubbles are eliminated to obtain a solution B;
4: adding rubber resin into the solution B, raising the temperature to 120-150 ℃, and stirring for reaction for 1-2 hours to obtain a finished product.
The inert gas is argon or helium.
The preparation method of the emulsifier comprises the following steps: mixing sodium citrate, sorbitol and water, heating to 50-60 deg.C, stirring thoroughly until the solid is completely dissolved to obtain mixed solution; preheating glycerol to 25-30 ℃, adding starch, and fully stirring to obtain white viscous liquid with uniform texture; mixing the mixed solution with white viscous liquid, adding octenyl succinic anhydride, heating to 60-70 deg.C, and stirring to obtain paste; and (4) performing bus sterilization on the paste to obtain the emulsifier.
The temperature for sterilizing the bus is 70-80 ℃.
And (3) performance testing:
in the above table, the method for testing the leakage performance is to use the laminated paper material produced in the above embodiments of the present invention to prepare a paper cup, to put a specified test solution at 93.3 ℃ into the paper cup to a position 1cm away from the cup mouth, and to observe after 60 minutes, there should be no leakage or edge leakage at the bottom and the side.
The surface temperature test method comprises the steps of filling specified test liquid with the temperature of 100 ℃ into a paper cup to a position 1cm away from the cup mouth, covering the paper cup, measuring the position 1/3 away from the cup mouth of the paper cup, taking 4 points on average for measurement (fixing a thermometer contact point by using a high-temperature adhesive tape), automatically collecting the surface temperature change of the paper cup by using a thermometer, recording the highest temperature, and keeping the stiffness of the paper cup unchanged, wherein the highest temperature is not more than 70 ℃.
The fluorescent substance detection method comprises the step of placing the sample paper cup manufactured by the process of the invention under ultraviolet lamps with the wavelengths of 365nm and 254nm for detection, wherein any one part is 10cm2The fluorescence area of the sample is not more than 0.5cm2。
The method of the decolorization test is as follows: soaking the sample paper cup in 60 ℃ water for 2 hours and normal temperature n-hexane soak solution for 2 hours, wherein the soaked water and the n-hexane soak solution do not have colors.
The sealant has the advantages of good waterproof performance, good permeability resistance, good weather resistance at high temperature, no deformation, no softness, no toxicity and no peculiar smell, and is a sealant for manufacturing paper cups with excellent performance.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The sealant for manufacturing the paper cup is characterized by being prepared from the following raw materials in parts by weight: 10-18 parts of polyvinyl alcohol, 15-20 parts of vinyl acetate, 10-14 parts of ethylene, 10-16 parts of acrylic acid, 8-12 parts of baking soda, 5-7 parts of rubber resin, 2-4 parts of white mineral oil, 35-40 parts of water, 0.5-0.8 part of emulsifier and 0.5-0.6 part of initiator;
the emulsifier is prepared from the following components in parts by weight: 15-20 parts of starch, 5-13 parts of glycerol, 8-12 parts of sorbitol, 1-3 parts of sodium citrate, 1-1.2 parts of octenyl succinic anhydride and 10-15 parts of water;
the preparation method of the sealant for making the paper cup comprises the following steps:
1) preparing raw materials according to the mass of each component, heating polyvinyl alcohol to melt, adding water, uniformly stirring, raising the temperature to 80-100 ℃, adding 50-60% by mass of vinyl acetate, stirring for 5-10 minutes, standing and cooling to obtain a solution A;
2) adding the rest vinyl acetate, ethylene, emulsifier and initiator into a polymerization reactor, introducing inert gas, performing polymerization reaction under the pressure of 1-1.5MPa and the temperature of 50-70 ℃, and performing neutralization, filtration and water washing to obtain vinyl acetate-ethylene copolymer emulsion;
3) mixing the solution A with vinyl acetate-ethylene copolymer emulsion, adding acrylic acid, stirring uniformly, adding baking soda, continuing stirring uniformly, and standing until bubbles are eliminated to obtain a solution B;
4) adding rubber resin into the solution B, raising the temperature to 120-150 ℃, and stirring for reaction for 1-2 hours to obtain a finished product;
the inert gas is argon or helium;
the preparation method of the emulsifier comprises the following steps: mixing sodium citrate, sorbitol and water, heating to 50-60 deg.C, stirring thoroughly until the solid is completely dissolved to obtain mixed solution; preheating glycerol to 25-30 ℃, adding starch, and fully stirring to obtain white viscous liquid with uniform texture; mixing the mixed solution with white viscous liquid, adding octenyl succinic anhydride, heating to 60-70 deg.C, and stirring to obtain paste; performing bus sterilization on the paste to obtain an emulsifier;
the temperature for sterilizing the bus is 70-80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586799.0A CN107384269B (en) | 2017-07-18 | 2017-07-18 | Sealant for making paper cup and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586799.0A CN107384269B (en) | 2017-07-18 | 2017-07-18 | Sealant for making paper cup and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107384269A CN107384269A (en) | 2017-11-24 |
| CN107384269B true CN107384269B (en) | 2020-07-07 |
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| CN201710586799.0A Active CN107384269B (en) | 2017-07-18 | 2017-07-18 | Sealant for making paper cup and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108937460B (en) * | 2018-07-11 | 2021-04-16 | 安庆市恒原纸塑有限公司 | Disposable paper cup |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102876241B (en) * | 2012-09-20 | 2013-10-02 | 吴江市天源塑胶有限公司 | Adhesive for wrapping paper material |
| CN104673141A (en) * | 2013-11-29 | 2015-06-03 | 青岛水世界环保科技有限公司 | Composite adhesive for environment-friendly paper bag |
| CN104629658A (en) * | 2015-01-22 | 2015-05-20 | 浙江农林大学 | Non-formaldehyde starch-base vinyl acetate adhesive production method |
| CN104877604A (en) * | 2015-06-30 | 2015-09-02 | 广西金虹环保包装科技有限公司 | Paper tube adhesive and preparation method thereof |
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Address after: 233400, No. 33, milk Spring Road, Huaiyuan Economic Development Zone, Bengbu, Anhui Applicant after: Anhui Jihong environmental Paper Co.,Ltd. Address before: 233400, No. 33, milk Spring Road, Huaiyuan Economic Development Zone, Bengbu, Anhui Applicant before: ANHUI YIBAILI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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