CN113150718A - Preparation and application of environment-friendly flame-retardant adhesive for cartons - Google Patents
Preparation and application of environment-friendly flame-retardant adhesive for cartons Download PDFInfo
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- CN113150718A CN113150718A CN202110355652.7A CN202110355652A CN113150718A CN 113150718 A CN113150718 A CN 113150718A CN 202110355652 A CN202110355652 A CN 202110355652A CN 113150718 A CN113150718 A CN 113150718A
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- Prior art keywords
- environment
- retardant adhesive
- cartons
- flame
- friendly flame
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- 239000000853 adhesive Substances 0.000 title claims abstract description 53
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 53
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003063 flame retardant Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 44
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 19
- 229920002472 Starch Polymers 0.000 claims abstract description 16
- 235000019698 starch Nutrition 0.000 claims abstract description 16
- 239000008107 starch Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 229920001685 Amylomaize Polymers 0.000 claims abstract description 13
- 229920000856 Amylose Polymers 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 13
- 239000011087 paperboard Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000001110 calcium chloride Substances 0.000 claims description 6
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000009969 flowable effect Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 235000011187 glycerol Nutrition 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 7
- 239000000123 paper Substances 0.000 description 7
- 238000005303 weighing Methods 0.000 description 6
- 238000004513 sizing Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 206010000369 Accident Diseases 0.000 description 2
- 229920000945 Amylopectin Polymers 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000008120 corn starch Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/12—Amylose; Amylopectin; Degradation products thereof
-
- 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
-
- 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
-
- 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
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to the field of adhesives, and discloses preparation and application of a green and environment-friendly flame-retardant adhesive for a carton. The preparation method of the flame-retardant adhesive comprises the following steps: adding high amylose starch into a calcium chloride solution, uniformly stirring, and heating to obtain transparent colloidal fluid; and then adding glycerol into the transparent colloidal fluid, preserving heat, stirring and blending, and cooling to obtain the environment-friendly flame-retardant adhesive for the cartons. The high amylose starch refers to natural starch with the high amylose content of more than 50 percent in starch. The invention creatively adopts high amylose starch and glycerin as raw materials to prepare the environment-friendly flame-retardant adhesive for the carton, which meets the requirement of carton adhesion, has flame retardance and can prevent fire.
Description
Technical Field
The invention belongs to the field of adhesives, and particularly relates to preparation and application of a green and environment-friendly flame-retardant adhesive for a carton.
Background
With the explosive development of electronic commerce and express delivery, hundreds of millions of commodities are transported to various places through cartons every day. The carton belongs to inflammable substance, and a large amount of cartons are piled up and are deposited and are very easily cause fire accidents. For example, the Guangdong Shenzhen in 2019 jointly issued with Xingxi paper products factory generates great fire, and the loss is as high as 2 hundred million yuan; in the 'double 11' period of 2019, one express delivery truck is on fire, and 13 tons of express packages are burnt.
In order to avoid fire accidents of the carton in factory buildings and transportation processes, the carton needs to be subjected to flame retardant treatment. Most of the existing flame-retardant cartons are made by spraying flame retardant, adding flame-retardant filler or making flame-retardant fibers into paper-making fibers, so that the paper has a flame-retardant effect. These methods have high production cost and complex operation process, and part of the methods can not effectively resist flame. On the other hand, starch is a common carton adhesive, but the processing procedure of the common starch adhesive is complex, starch prepared from modified starch is easy to agglomerate in the sizing process, the starch is not easy to dry after being coated on corrugated boards, and the corrugated boards are easy to absorb water and deform.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention mainly aims to provide a preparation method of a green environment-friendly flame-retardant adhesive for a carton.
The invention also aims to provide the environment-friendly flame-retardant adhesive for the cartons, which is prepared by the method.
The invention further aims to provide application of the environment-friendly flame-retardant adhesive for the cartons. According to the invention, the sizing process is simplified by modifying starch, so that the starch glue is more viscous and has stronger binding power; on the other hand, the ignition point of the starch glue is improved, and the safety of transportation and storage is improved.
The purpose of the invention is realized by the following scheme:
a preparation method of a green environment-friendly flame-retardant adhesive for cartons comprises the following steps:
adding high amylose starch into a calcium chloride solution, uniformly stirring, and heating to obtain transparent colloidal fluid; and then adding glycerol into the transparent colloidal fluid, preserving heat, stirring and blending, and cooling to obtain the environment-friendly flame-retardant adhesive for the cartons.
The high amylose starch refers to natural starch with the amylose content of not less than 50 percent in starch.
The mass ratio of the calcium chloride to the water in the calcium chloride solution is 1: 1.25-1: 2.5, and preferably 1:2.
The dosage of the high amylose starch and the calcium chloride solution meets the following requirements: the mass ratio of the high amylose starch to the calcium chloride solution is not less than 1:10, preferably 1.4: 10-1.7: 10.
The temperature of the heating treatment is not lower than 65 ℃, and preferably 75 ℃;
the time of the heat treatment is not shorter than 0.5h, preferably 1.5 h.
The glycerol is used in such an amount that the mass ratio of glycerol to high amylose is greater than 1:19, preferably 9: 41.
The time for mixing and stirring under heat preservation is not less than 0.5h, preferably 1 h.
The sample prepared by the method is cooled to obtain the adhesive liquid.
The environment-friendly flame-retardant adhesive for the cartons, which is prepared by the method, is disclosed.
The green environment-friendly flame-retardant adhesive for the carton is applied to the carton.
The application method of the environment-friendly flame-retardant adhesive for the cartons adopts a hot sizing mode to coat: the adhesive is first heated to over 80 deg.c to form flowable sol, and then coated directly onto the surface of paperboard to adhere other paperboards. After bonding, the paper box is dried for 10-20min in an environment with the temperature of more than 60 ℃, the paper boards can be firmly bonded, and the bonding part can be flame-retardant.
The mechanism of the invention is as follows:
the amylopectin content of common starch is high. The gelatinized amylopectin has high viscosity but weak binding force to water, so the formed glue solution has high free water content, volatile water, unstable performance and weak binding force. In the high amylose starch, the content of the amylose is high, and the formed gel structure has strong binding force on water molecules, so that the glue solution does not contain free water, and has strong binding force and stable performance. Meanwhile, the glue solution contains a large amount of bound water, and has a flame retardant effect. And secondly, the calcium chloride solution promotes the gelatinization of the high amylose starch, the gelatinization difficulty is reduced, and the contained chloride ions have flame retardance. The addition of glycerol improves the fluidity of the mucus and ensures the stability of hot sizing.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention prepares the adhesive for the carton with good flame retardance. The adhesive has simple components, low cost, simple preparation process, no three-waste discharge and environmental protection.
(2) The flame-retardant adhesive prepared by the invention has excellent flame retardance and cohesiveness, and can meet the requirements of carton bonding and flame retardance.
(3) The flame-retardant adhesive prepared by the invention is convenient to use: the gel is solid gel at room temperature, and is convenient to store and transport; when in use, the adhesive can be applied by heating and melting.
Drawings
FIG. 1 is a diagram of the burning state of the paperboard coated with the flame retardant adhesive of example 1.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The reagents used in the examples are commercially available without specific reference.
Example 1
(1) Weighing 25g of calcium chloride, adding the calcium chloride into 50g of water, and stirring and dissolving the calcium chloride until the calcium chloride is clear to obtain a calcium chloride solution.
(2) 12.5g of high amylose corn starch (amylose content 70%) was weighed and added to the solution in (1) and stirred well to form a starch/salt suspension.
(3) And (3) heating the suspension in the step (2) to 75 ℃ while stirring, and heating for 2h to obtain a transparent colloidal fluid.
(4) And (3) weighing 5.36g of glycerol, adding the glycerol into the system in the step (4), continuously stirring for 1h at 75 ℃ to ensure that the glycerol and the glue solution are completely blended, and cooling to room temperature to obtain the flame-retardant adhesive.
(5) Weighing 10g of flame-retardant adhesive, heating at 80 ℃ for 30min until the adhesive flows dynamically, and coating the adhesive on the surface of a paperboard. Then the paper board is dried for 20min at 60 ℃ and can be firmly bonded. At this time, if the paper is forcibly torn, the paper is torn and cannot be peeled from the adhesive portion.
(6) The flame retardant adhesive coated paperboard is shown in figure 1 during burning. When burning, it can be observed that the flame is gradually extinguished at the coating site, and the adhesive coated area cannot be ignited.
Example 2
(1) 60g of anhydrous calcium chloride solid is weighed and added into 120g of water, and the mixture is stirred and dissolved until the mixture is clear, so that calcium chloride solution is obtained.
(2) Weighing 25g of high amylose corn starch (amylose content is 70%), adding the solution in (1), and stirring uniformly to form a starch/salt suspension.
(3) And (3) heating the suspension in the step (2) to 90 ℃ while stirring, and heating for 1h to obtain a transparent colloidal fluid.
(4) And (3) weighing 5.36g of glycerol, adding the glycerol into the system in the step (3), continuously stirring for 0.5h at 90 ℃ to ensure that the glycerol and the glue solution are completely blended, and cooling to room temperature to obtain the flame-retardant adhesive.
(5) Weighing 10g of flame-retardant adhesive, heating at 80 ℃ for 30min until the adhesive flows dynamically, and coating the adhesive on the surface of a paperboard. Then the paper board is dried for 20min at 60 ℃ and can be firmly bonded. At this time, if the paper is forcibly torn, the paper is torn and cannot be peeled from the adhesive portion.
(6) The flame retardant adhesive coated cardboard was similar to fig. 1 in the burning state, and it was observed that the flame was gradually extinguished at the coated area, and the adhesive coated area could not be ignited.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (9)
1. The preparation method of the environment-friendly flame-retardant adhesive for the cartons is characterized by comprising the following steps of:
adding high amylose starch into a calcium chloride solution, uniformly stirring, and heating to obtain transparent colloidal fluid; and then adding glycerol into the transparent colloidal fluid, preserving heat, stirring and blending, and cooling to obtain the environment-friendly flame-retardant adhesive for the cartons.
2. The preparation method of the environment-friendly flame-retardant adhesive for the cartons, as claimed in claim 1, is characterized in that:
the high amylose starch refers to natural starch with the amylose content of not less than 50 percent in starch.
3. The preparation method of the environment-friendly flame-retardant adhesive for the cartons, as claimed in claim 1, is characterized in that:
the mass ratio of calcium chloride to water in the calcium chloride solution is 1: 1.25-1: 2.5;
the dosage of the high amylose starch and the calcium chloride solution meets the following requirements: the mass ratio of the high amylose starch to the calcium chloride solution is not less than 1: 10.
4. The preparation method of the environment-friendly flame-retardant adhesive for the cartons, as claimed in claim 1, is characterized in that:
the temperature of the heating treatment is not lower than 65 ℃;
the time of the heat treatment is not shorter than 0.5 h.
5. The preparation method of the environment-friendly flame-retardant adhesive for the cartons, as claimed in claim 1, is characterized in that:
the glycerol is used in an amount such that the mass ratio of the glycerol to the high amylose is greater than 1: 19.
6. The preparation method of the environment-friendly flame-retardant adhesive for the cartons, as claimed in claim 1, is characterized in that:
the time for mixing and stirring is not less than 0.5 h.
7. An environment-friendly flame retardant adhesive for cartons, prepared by the method of any one of claims 1-6.
8. The use of the green, environmentally friendly flame retardant adhesive for cartons according to claim 7 in cartons.
9. A method of using the environmentally friendly flame retardant adhesive for cartons of claim 7, comprising the steps of:
heating the environment-friendly carton by using the flame-retardant adhesive to a flowable sol state in an environment with the temperature of more than 80 ℃, then directly coating the flame-retardant adhesive on the surface of the paperboard, then bonding other paperboards, and drying the carton in an environment with the temperature of more than 60 ℃ for 10-20min after bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110355652.7A CN113150718A (en) | 2021-04-01 | 2021-04-01 | Preparation and application of environment-friendly flame-retardant adhesive for cartons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110355652.7A CN113150718A (en) | 2021-04-01 | 2021-04-01 | Preparation and application of environment-friendly flame-retardant adhesive for cartons |
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| Publication Number | Publication Date |
|---|---|
| CN113150718A true CN113150718A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110355652.7A Pending CN113150718A (en) | 2021-04-01 | 2021-04-01 | Preparation and application of environment-friendly flame-retardant adhesive for cartons |
Country Status (1)
| Country | Link |
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| CN (1) | CN113150718A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114800762A (en) * | 2022-05-27 | 2022-07-29 | 广州大学 | Preparation method of green environment-friendly flame-retardant wood-plastic plate |
| CN115340832A (en) * | 2022-08-19 | 2022-11-15 | 广州大学 | Preparation method and application of starch-based waterproof flame-retardant adhesive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034015A (en) * | 1987-11-19 | 1989-07-19 | 云南省轻工业科学研究所 | Adhesive from canna ednlis starch and preparation thereof |
| CN103468162A (en) * | 2013-09-29 | 2013-12-25 | 成都新柯力化工科技有限公司 | Powder type white emulsion and preparation method thereof |
| CN106398586A (en) * | 2016-10-14 | 2017-02-15 | 宝艺新材料股份有限公司 | Low-temperature adhesive for corrugated cardboard production lines and method for preparing low-temperature adhesive |
| CN107384248A (en) * | 2017-08-16 | 2017-11-24 | 成都市九华义远包装有限公司 | Cardboard adhesive based on starch and preparation method thereof |
| CN112457801A (en) * | 2020-11-24 | 2021-03-09 | 张家港市欣发包装有限责任公司 | Low-temperature glue making method for reducing heat of composite forming of paperboard |
-
2021
- 2021-04-01 CN CN202110355652.7A patent/CN113150718A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN1034015A (en) * | 1987-11-19 | 1989-07-19 | 云南省轻工业科学研究所 | Adhesive from canna ednlis starch and preparation thereof |
| CN103468162A (en) * | 2013-09-29 | 2013-12-25 | 成都新柯力化工科技有限公司 | Powder type white emulsion and preparation method thereof |
| CN106398586A (en) * | 2016-10-14 | 2017-02-15 | 宝艺新材料股份有限公司 | Low-temperature adhesive for corrugated cardboard production lines and method for preparing low-temperature adhesive |
| CN107384248A (en) * | 2017-08-16 | 2017-11-24 | 成都市九华义远包装有限公司 | Cardboard adhesive based on starch and preparation method thereof |
| CN112457801A (en) * | 2020-11-24 | 2021-03-09 | 张家港市欣发包装有限责任公司 | Low-temperature glue making method for reducing heat of composite forming of paperboard |
Non-Patent Citations (1)
| Title |
|---|
| 李子东等: "《现代胶粘技术手册》", 31 January 2002, 新时代出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114800762A (en) * | 2022-05-27 | 2022-07-29 | 广州大学 | Preparation method of green environment-friendly flame-retardant wood-plastic plate |
| CN115340832A (en) * | 2022-08-19 | 2022-11-15 | 广州大学 | Preparation method and application of starch-based waterproof flame-retardant adhesive |
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Application publication date: 20210723 |
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