CN117210045A - Putty glue for interior decoration of building and preparation method thereof - Google Patents
Putty glue for interior decoration of building and preparation method thereof Download PDFInfo
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- CN117210045A CN117210045A CN202310932209.0A CN202310932209A CN117210045A CN 117210045 A CN117210045 A CN 117210045A CN 202310932209 A CN202310932209 A CN 202310932209A CN 117210045 A CN117210045 A CN 117210045A
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- polyvinyl alcohol
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- 239000003292 glue Substances 0.000 title claims abstract description 87
- 238000005034 decoration Methods 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 133
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 133
- 108010073771 Soybean Proteins Proteins 0.000 claims abstract description 92
- 235000019710 soybean protein Nutrition 0.000 claims abstract description 81
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000006243 chemical reaction Methods 0.000 claims abstract description 57
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 239000007864 aqueous solution Substances 0.000 claims abstract description 52
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000001816 cooling Methods 0.000 claims abstract description 49
- 238000002156 mixing Methods 0.000 claims abstract description 46
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 41
- 239000007822 coupling agent Substances 0.000 claims abstract description 38
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004202 carbamide Substances 0.000 claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 229940071440 soy protein isolate Drugs 0.000 claims abstract description 14
- 229940001941 soy protein Drugs 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical group CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 4
- 230000036541 health Effects 0.000 abstract description 6
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 86
- 230000000052 comparative effect Effects 0.000 description 26
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 24
- 239000000853 adhesive Substances 0.000 description 19
- 230000001070 adhesive effect Effects 0.000 description 19
- 230000000694 effects Effects 0.000 description 19
- 235000018102 proteins Nutrition 0.000 description 17
- 108090000623 proteins and genes Proteins 0.000 description 17
- 102000004169 proteins and genes Human genes 0.000 description 17
- 238000001035 drying Methods 0.000 description 11
- 239000000126 substance Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 8
- 238000005336 cracking Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 229920002521 macromolecule Polymers 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 231100000331 toxic Toxicity 0.000 description 6
- 230000002588 toxic effect Effects 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 229910021538 borax Inorganic materials 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 4
- 239000004328 sodium tetraborate Substances 0.000 description 4
- 235000010339 sodium tetraborate Nutrition 0.000 description 4
- 125000003368 amide group Chemical group 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011094 fiberboard Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 108090000765 processed proteins & peptides Proteins 0.000 description 3
- 235000010469 Glycine max Nutrition 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
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- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- -1 inorganic stuffing Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Sealing Material Composition (AREA)
Abstract
The application relates to putty glue for building interior decoration and a preparation method thereof. The putty glue for building interior decoration comprises the following raw materials: soy protein isolate, polyvinyl alcohol, urea, silica sol, coupling agent and water. The application also provides a preparation method of the putty glue for building interior decoration, which comprises the following steps: adding soybean protein isolate into water, regulating the pH value by using sodium hydroxide, then adding urea, and heating for reaction to obtain soybean protein modified liquid; adding polyvinyl alcohol into water, heating, and cooling to obtain a polyvinyl alcohol aqueous solution; mixing the soy protein modified liquid and the polyvinyl alcohol aqueous solution, adding the silica sol and the coupling agent, performing polymerization reaction, and cooling to obtain the putty glue for the interior decoration of the building. The application solves the problems that the prior putty glue for building interior decoration contains formaldehyde, thereby polluting the environment and affecting the health of human bodies.
Description
Technical Field
The application relates to the technical field of composite high polymer materials, in particular to putty glue for building interior decoration and a preparation method thereof.
Background
The interior decoration of a building is an important component of house decoration, and is also a pollution source which is the largest in the current house decoration. The traditional indoor decoration of a building usually adopts putty to scrape and coat the inner wall surface, the inner wall surface is polished and leveled after being dried, and then various wall surface coatings are painted or wallpaper wall cloth is pasted. The putty for inner wall decoration has the main components of glue, inorganic stuffing, water and assistant. The glue has the main binding function in the putty, can make the putty become an adhesive paste after being well mixed, is convenient to be coated on a wall surface through construction, and has the functions of binding filler, film forming, water resistance and crack resistance after the putty is solidified and dried.
At present, glue used in the production of putty for building interior decoration is commonly known as glue, and the main film forming material is polyvinyl formal, wherein the polyvinyl formal is prepared by taking polyvinyl alcohol and formaldehyde as raw materials through condensation. Therefore, the glue contains a large amount of free formaldehyde, which causes the defects of formaldehyde pollution, unsafe and environment-friendly effects and the like of the traditional putty for building interior decoration. Along with the enhancement of health consciousness of people, more and more attention is paid to the selection of environment-friendly building materials without formaldehyde pollution and biological base adhesives in the aspect of house decoration, and people begin to pay attention to the fact that the environment-friendly building materials without formaldehyde pollution are free.
CN 111944480A discloses a silica sol soybean protein adhesive for producing fiber board and a preparation method thereof. The method comprises the following steps: adding sodium tetraborate and water into a reaction container for fully dissolving, adding soy protein isolate and urea, heating under the condition of stirring to carry out modification reaction, cooling after the reaction is finished, adding silica sol and polyvinyl alcohol solution, and fully stirring to obtain the silica sol soybean protein adhesive for producing the fiberboard. The fiberboard produced by the silica sol soybean protein adhesive prepared by the method has high strength, good moisture resistance, no formaldehyde pollution, simple preparation process, low cost and environmental protection, and is suitable for industrial production. However, as the silica sol soybean protein adhesive is used for bonding fiber fine powder and needs a spraying process and a hot press drying process, the requirements on the solid content and the bonding strength of the adhesive are high, but for interior decoration, putty is solidified into natural drying, and the subsequent polishing operation is needed, so that the adhesive cannot be suitable for interior decoration of buildings.
Disclosure of Invention
The application aims to provide putty glue for building interior decoration and a preparation method thereof, which are used for solving the problems that the prior putty glue for building interior decoration contains formaldehyde, so that the environment is polluted and the human health is influenced.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
the putty glue for the interior decoration of the building comprises the following raw materials in parts by weight: 5 to 10 weight portions of soy protein isolate, 6 to 14 weight portions of polyvinyl alcohol, 0.5 to 3 weight portions of urea, 0.5 to 2 weight portions of silica sol, 0.2 to 0.3 weight portion of coupling agent and 200 weight portions of water.
According to the technical means, the soybean protein isolate and the polyvinyl alcohol raw materials are processed by the natural biological raw materials, so that the prepared putty glue does not contain pollutants such as formaldehyde and the like, and no toxic and harmful substances are added into the raw materials, thereby preventing the generation and release of the toxic and harmful substances, effectively avoiding the pollution to the environment and improving the health and safety of human bodies; the soybean protein isolate is used as a peptide chain polymer with an amide structure, has the advantages of high functional group activity and good crosslinking film forming property, and simultaneously effectively improves the water resistance and weather resistance of the protein biological base gel after being solidified by adding the coupling agent and the silica sol.
Preferably, the coupling agent is N- (2-aminoethyl) -3-aminopropyl trimethoxysilane.
Preferably, the solid content of the silica sol is 20-30wt% and the pH value is 7-9.
Preferably, the adhesive comprises the following raw materials in parts by weight: 6 to 8 weight portions of soy protein isolate, 8 to 12 weight portions of polyvinyl alcohol, 0.5 to 3 weight portions of urea, 0.5 to 2 weight portions of silica sol, 0.2 to 0.3 weight portions of N- (2-aminoethyl) -3-aminopropyl trimethoxysilane and 200 weight portions of water.
Preferably, the adhesive comprises the following raw materials in parts by weight: 7 parts by weight of soy protein isolate, 10 parts by weight of polyvinyl alcohol, 1.5 parts by weight of urea, 1.5 parts by weight of silica sol, 0.25 part by weight of N- (2-aminoethyl) -3-aminopropyl trimethoxysilane and 200 parts by weight of water.
The application also provides a preparation method of the putty glue for building interior decoration, which comprises the following steps:
adding soybean protein isolate into water, regulating the pH value by using sodium hydroxide, then adding urea, and heating for reaction to obtain soybean protein modified liquid;
adding polyvinyl alcohol into water, heating, and cooling to obtain a polyvinyl alcohol aqueous solution;
mixing the soy protein modified liquid and the polyvinyl alcohol aqueous solution, adding the silica sol and the coupling agent, performing polymerization reaction, and cooling to obtain the putty glue for the interior decoration of the building.
Among them, the difference between the present application and the soybean protein adhesive disclosed in CN 111944480A is mainly represented by the following aspects:
1) The reaction principle in the bonding process is different: the putty glue is mainly used for bonding various inorganic fillers, and has the bonding effect that a composite macromolecular product obtained after the coupling reaction of protein and polyvinyl alcohol, namely protein-based polyvinyl alcohol, is obtained. The coupling agent has the function of connecting protein macromolecules and polyvinyl alcohol macromolecules, and simultaneously, silica sol is grafted to the composite macromolecules through the coupling effect of the coupling agent so as to improve the bonding strength of the putty glue, and the preparation process of the putty glue has a chemical reaction process. In the application, inorganic filler in the putty is bonded by utilizing high viscosity formed by composite macromolecules, the physical effect is dominant, and the chemical bonding is secondary; the soybean protein adhesive in CN 111944480A has the main effects of chemically binding with fiber, and the polyvinyl alcohol has the auxiliary effects of regulating leveling property, viscosity, workability, etc. and has great solid content.
2) The construction scene and the application process are different: in the application, the putty produced by the prepared putty glue is naturally dried without hot pressing process, and the adhesive bonds inorganic filler mainly through high viscosity formed in the self water loss curing process, so that the strength requirement is low, and the subsequent polishing is convenient; the soybean protein adhesive in CN 111944480A is constructed by a spraying process, and has high solid content, low viscosity, hot pressing and drying process after mixing, and high strength, wherein the hot pressing provides chemical bonding conditions and bonding strength for the reaction of silica sol and protein with fiber.
3) The raw materials are different: the effect of sodium tetraborate in the soy protein adhesive in CN 111944480A is an antiseptic effect on proteins; in the application, protein loses the nutrition through coupling reaction, and is not necessary to be added, and in the application, the polyvinyl alcohol is used in a large amount, and is easy to form gel with sodium tetraborate, so that the sodium tetraborate cannot be used for the putty glue in the application.
Preferably, the pH value is adjusted to 9-10 by sodium hydroxide;
after adding urea, the temperature of the heating reaction is 58-65 ℃, and the heating reaction time is 40-60 min.
Preferably, the polyvinyl alcohol is added into water, heated to 95 ℃ to dissolve the polyvinyl alcohol, and then cooled to 25-60 ℃ to obtain the polyvinyl alcohol aqueous solution.
Preferably, the temperature of the polymerization reaction is 55-65 ℃, and the time of the polymerization reaction is 15-45 min.
Preferably, the temperature of the polymerization reaction is 60 ℃, and the time of the polymerization reaction is 30min.
The application has the beneficial effects that:
the putty glue for building interior decoration is prepared from the soybean protein isolate and the polyvinyl alcohol raw materials which are obtained by processing natural biological raw materials, so that the prepared putty glue does not contain formaldehyde and other pollutants, and no toxic or harmful substances are added into the raw materials, thereby preventing the generation and release of the toxic or harmful substances, effectively avoiding the pollution to the environment and improving the health and safety of human bodies; the soybean protein isolate is used as a peptide chain polymer with an amide structure, has the advantages of high functional group activity and good crosslinking film forming property, and simultaneously, the water resistance and weather resistance of the protein bio-based adhesive after being solidified are effectively improved by adding the coupling agent and the silica sol, and the soybean protein isolate and the polyvinyl alcohol have the advantages of rich sources, biodegradability, no plastic pollution, low price and the like, thereby providing a favorable guarantee for the industrial production of the bio-based adhesive;
the preparation method of the putty glue for building interior decoration of the application firstly adopts the soybean protein isolate and the polyvinyl alcohol to prepare the soybean protein isolate modified liquid and the polyvinyl alcohol aqueous solution respectively, thereby solving the problem of inconsistent preparation reaction temperature of the two solutions, simultaneously creating reaction process conditions for preparing the soybean protein-polyvinyl alcohol composite polymer by coupling reaction of the two substances, secondly, connecting the soybean protein isolate and the polyvinyl alcohol by adding the coupling agent, and simultaneously adding the silica sol to graft the silica sol onto protein macromolecules in a hydrolysis crosslinking way, thereby effectively improving the water resistance and weather resistance of the cured protein bio-based glue.
Detailed Description
The embodiments of the present application will be described with reference to preferred embodiments, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
Example 1
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Example 2
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 14Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Example 3
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 6Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Example 4
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 5Kg of soy protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soy protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Example 5
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 10Kg of soy protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soy protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Example 6
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soy protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 0.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Example 7
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soy protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 2.0Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Example 8
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 55 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Example 9
The preparation method of the putty glue for the interior decoration of the building comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 65 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 1
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 16Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 2
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 5Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 3
A preparation method of conventional putty glue comprises the following steps:
s1, adding 12Kg of soy protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soy protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 4
A preparation method of conventional putty glue comprises the following steps:
s1, adding 4Kg of soy protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soy protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 5
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 3Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 6
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soy protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 0.3Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 7
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 0.3Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 8
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 30 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 9
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.1Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 10
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 50 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 11
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 10 minutes at 60 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Comparative example 12
A preparation method of conventional putty glue comprises the following steps:
s1, adding 7Kg of soybean protein isolate and 100Kg of water into a reaction vessel, stirring and dispersing, adjusting the pH value to 10 by using sodium hydroxide, then adding 1.5Kg of urea, heating to 60 ℃ under the stirring condition, and reacting for 50 minutes to obtain a soybean protein modified liquid;
s2, adding 10Kg of polyvinyl alcohol and 100Kg of water into a reaction container, heating to 95 ℃ under stirring to completely dissolve the polyvinyl alcohol, and then cooling to 60 ℃ to obtain a polyvinyl alcohol aqueous solution;
s3, mixing the soybean protein modified liquid obtained in the S1 and the polyvinyl alcohol aqueous solution obtained in the S2, then adding 1.5Kg of silica sol and 0.25Kg of coupling agent N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, stirring and mixing uniformly, carrying out polymerization reaction for 30 minutes at 70 ℃, and cooling to normal temperature to obtain the putty glue for building interior decoration.
Detection analysis
The putty glue for interior decoration of a building prepared in examples 1 to 7 and the conventional putty glue prepared in comparative examples 1 to 12 were used for processing interior wall putty, and the performance indexes of the putty obtained by the test (test method was performed with reference to JG/T298-2010 "putty for interior use of a building") are shown in Table 1.
TABLE 1 Properties of coating materials prepared in examples 1 to 7 and comparative examples 1 to 12 and performance indexes of the prepared coated papers
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Note that: the rows in the table are: JG/T298-2010 putty for building indoor use, wherein the indexes are differential indexes which can be influenced by the change of putty glue.
From the data analysis in the table 1, it is known that the putty prepared by the putty glue for building interior decoration obtained in the embodiments 1-7 of the application has better properties, and each different index of the putty performance meets or exceeds the related technical index requirements specified in the line standard JG/T298-2010 putty for building interior, wherein the putty obtained in the embodiment 1 has optimal comprehensive performance. In contrast, in comparative example 1, the amount of polyvinyl alcohol used was too large, the putty was too thick, the caking phenomenon occurred, and the surface drying time was long. In comparative example 2, the amount of polyvinyl alcohol used was too small, the adhesion of the putty was poor, the film formation of the putty had a slight powder dropping phenomenon, and the adhesion strength was low. In comparative example 3, the amount of soybean protein isolate added was excessive, and the reaction was excessive, so that the putty was poor in crack resistance at the initial stage of drying, had cracks, and had a phenomenon of falling powder in the putty film formation. In comparative example 4, the amount of soybean protein isolate added was too small, the polymerization effect was poor, the surface drying time was long, and the putty film had a cracking phenomenon. In comparative example 5, the silica sol is excessively large, so that the putty is agglomerated, thickened, and the putty film is cracked, so that the bonding strength is high, and the polishing is affected. In comparative example 6, the amount of silica sol added was too small, and the initial drying had slight cracks, and the bonding strength after the putty was dried was low. In comparative example 7, the amount of urea added was too small, so that the protein dissolution was poor, the putty had a caking phenomenon, the putty film had a cracking and powder dropping phenomenon, and the bonding strength was low. In comparative example 8, the modified time of the protein was too short, the protein was not completely dissolved, the prepared putty was not uniform and easy to deteriorate, the initial cracking resistance of the putty was poor in drying, the film forming effect was poor, the powder falling phenomenon was caused, and the bonding strength was low. In comparative example 9, the amount of the coupling agent used was too small, so that the polymerization effect of the protein and polyvinyl alcohol was poor, the initial crack resistance of the putty was poor, the film forming effect was poor, and the cracking phenomenon was observed. In comparative example 10, the polymerization temperature of the polyvinyl alcohol solution and the protein-modified liquid was too low, the polymerization effect was poor, the formulated putty was poor in low-temperature stability, liable to be degraded, poor in crack resistance at the initial stage of drying, had cracks, poor in film-forming effect, had the phenomena of foaming, cracking and powder falling, and was low in bonding strength. In comparative example 11, the polymerization time of the polyvinyl alcohol solution and the protein-modified liquid was too short, the polymerization effect was poor, the formulated putty was poor in low-temperature stability, liable to be degraded, poor in crack resistance at the initial stage of drying, had cracks, poor in film-forming effect, had the phenomena of foaming, cracking and powder falling, and was low in bonding strength. In comparative example 12, the polymerization temperature of the polyvinyl alcohol solution and the protein-modified liquid was too high, the polymerization effect was poor, the formulated putty was poor in low-temperature stability, liable to be degraded, poor in crack resistance at the initial stage of drying, had cracks, poor in film-forming effect, had the phenomena of foaming, cracking and powder falling, and was low in bonding strength. Therefore, the preparation method of the putty glue for the interior decoration of the building proves that the proportion among the polyvinyl alcohol, the soy protein isolate, the silica sol and the coupling agent, and the modification time, the polymerization temperature and the time of the soy protein isolate are all important parameters affecting the performance of the putty glue.
In summary, the putty glue for building interior decoration is prepared from the soybean protein isolate and the polyvinyl alcohol raw materials which are obtained by processing natural biological raw materials, so that the prepared putty glue does not contain pollutants such as formaldehyde and the like, and no toxic and harmful substances are added into the raw materials, thereby preventing the generation and release of the toxic and harmful substances, effectively avoiding the pollution to the environment and improving the health and safety of human bodies; the soybean protein isolate is used as a peptide chain polymer with an amide structure, has the advantages of high functional group activity and good crosslinking film forming property, and simultaneously effectively improves the water resistance and weather resistance of the cured protein bio-based adhesive by adding a coupling agent and silica sol, and the soybean protein isolate and the polyvinyl alcohol have the advantages of rich sources, biodegradability, no plastic pollution, low price and the like, thereby providing a favorable guarantee for the industrial production of the bio-based adhesive.
The preparation method of the putty glue for building interior decoration of the application firstly adopts the soybean protein isolate and the polyvinyl alcohol to prepare the soybean protein isolate modified liquid and the polyvinyl alcohol aqueous solution respectively, thereby solving the problem of inconsistent preparation reaction temperature of the two solutions, simultaneously creating reaction process conditions for preparing the soybean protein-polyvinyl alcohol composite polymer by coupling reaction of the two substances, secondly, connecting the soybean protein isolate and the polyvinyl alcohol by adding the coupling agent, and simultaneously adding the silica sol to graft the silica sol onto protein macromolecules in a hydrolysis crosslinking way, thereby effectively improving the water resistance and weather resistance of the cured protein bio-based glue.
The above embodiments are merely preferred embodiments for fully explaining the present application, and the scope of the present application is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present application, and are intended to be within the scope of the present application.
Claims (10)
1. The putty glue for the interior decoration of the building is characterized by comprising the following raw materials in parts by weight: 5 to 10 weight portions of soy protein isolate, 6 to 14 weight portions of polyvinyl alcohol, 0.5 to 3 weight portions of urea, 0.5 to 2 weight portions of silica sol, 0.2 to 0.3 weight portion of coupling agent and 200 weight portions of water.
2. The putty glue for use in building interior according to claim 1, wherein said coupling agent is N- (2-aminoethyl) -3-aminopropyl trimethoxysilane.
3. The putty glue for use in building interior according to claim 1, wherein said silica sol has a solids content of 20-30 wt% and a pH value of 7-9.
4. The putty glue for building interior decoration according to claim 2, which is characterized by comprising the following raw materials in parts by weight: 6 to 8 weight portions of soy protein isolate, 8 to 12 weight portions of polyvinyl alcohol, 0.5 to 3 weight portions of urea, 0.5 to 2 weight portions of silica sol, 0.2 to 0.3 weight portions of N- (2-aminoethyl) -3-aminopropyl trimethoxysilane and 200 weight portions of water.
5. The putty glue for use in building interior decoration as set forth in claim 4, including the following raw materials in parts by weight: 7 parts by weight of soy protein isolate, 10 parts by weight of polyvinyl alcohol, 1.5 parts by weight of urea, 1.5 parts by weight of silica sol, 0.25 part by weight of N- (2-aminoethyl) -3-aminopropyl trimethoxysilane and 200 parts by weight of water.
6. A method for preparing the putty glue for use in building interior decoration as set forth in any one of claims 1 to 5, characterized by comprising the steps of:
adding soybean protein isolate into water, regulating the pH value by using sodium hydroxide, then adding urea, and heating for reaction to obtain soybean protein modified liquid;
adding polyvinyl alcohol into water, heating, and cooling to obtain a polyvinyl alcohol aqueous solution;
mixing the soy protein modified liquid and the polyvinyl alcohol aqueous solution, adding the silica sol and the coupling agent, performing polymerization reaction, and cooling to obtain the putty glue for the interior decoration of the building.
7. The preparation method according to claim 6, wherein the pH is adjusted to 9-10 with sodium hydroxide;
after urea is added, the temperature of the heating reaction is 58-65 ℃, and the heating reaction time is 40-60 min.
8. The method according to claim 6, wherein the polyvinyl alcohol is added to water, heated to 95 ℃ to dissolve the polyvinyl alcohol, and cooled to 25 ℃ to 60 ℃ to obtain an aqueous solution of the polyvinyl alcohol.
9. The preparation method according to claim 6, wherein the polymerization reaction temperature is 55-65 ℃ and the polymerization reaction time is 15-45 min.
10. The method according to claim 9, wherein the polymerization reaction temperature is 60 ℃ and the polymerization reaction time is 30min.
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