CN115094667A - Additive for inhibiting plant fiber yellowing - Google Patents
Additive for inhibiting plant fiber yellowing Download PDFInfo
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- CN115094667A CN115094667A CN202210936109.0A CN202210936109A CN115094667A CN 115094667 A CN115094667 A CN 115094667A CN 202210936109 A CN202210936109 A CN 202210936109A CN 115094667 A CN115094667 A CN 115094667A
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- yellowing
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- inhibiting
- plant fibers
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- 238000004383 yellowing Methods 0.000 title claims abstract description 60
- 239000000835 fiber Substances 0.000 title claims abstract description 51
- 239000000654 additive Substances 0.000 title claims abstract description 32
- 230000000996 additive effect Effects 0.000 title claims abstract description 31
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 27
- 125000002091 cationic group Chemical group 0.000 claims abstract description 26
- 239000003112 inhibitor Substances 0.000 claims abstract description 20
- 239000003607 modifier Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000002516 radical scavenger Substances 0.000 claims abstract description 10
- 229940123457 Free radical scavenger Drugs 0.000 claims abstract description 8
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 26
- MGNZXYYWBUKAII-UHFFFAOYSA-N cyclohexa-1,3-diene Chemical compound C1CC=CC=C1 MGNZXYYWBUKAII-UHFFFAOYSA-N 0.000 claims description 20
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002202 Polyethylene glycol Substances 0.000 claims description 12
- 229920001223 polyethylene glycol Polymers 0.000 claims description 12
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 12
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 12
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 12
- FTVFPPFZRRKJIH-UHFFFAOYSA-N 2,2,6,6-tetramethylpiperidin-4-amine Chemical group CC1(C)CC(N)CC(C)(C)N1 FTVFPPFZRRKJIH-UHFFFAOYSA-N 0.000 claims description 11
- 235000010323 ascorbic acid Nutrition 0.000 claims description 10
- 229960005070 ascorbic acid Drugs 0.000 claims description 10
- 239000011668 ascorbic acid Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 229920002401 polyacrylamide Polymers 0.000 claims description 8
- CIWBSHSKHKDKBQ-DUZGATOHSA-N D-araboascorbic acid Natural products OC[C@@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-DUZGATOHSA-N 0.000 claims description 6
- 235000010350 erythorbic acid Nutrition 0.000 claims description 6
- 229940026239 isoascorbic acid Drugs 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 4
- 239000004318 erythorbic acid Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- -1 phenoxy radicals Chemical class 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000012496 blank sample Substances 0.000 description 3
- 229920006317 cationic polymer Polymers 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- KHUXNRRPPZOJPT-UHFFFAOYSA-N phenoxy radical Chemical compound O=C1C=C[CH]C=C1 KHUXNRRPPZOJPT-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000013527 bean curd Nutrition 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Chemical group 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007760 free radical scavenging Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/143—Agents preventing ageing of paper, e.g. radiation absorbing substances
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/07—Nitrogen-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
- D21H17/375—Poly(meth)acrylamide
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The application provides an additive for inhibiting plant fiber from yellowing, which comprises the following raw material components in parts by weight: 10-20 parts of free radical scavenger, 5-15 parts of light-induced yellowing inhibitor, 2-10 parts of cationic modifier and 1-10 parts of reactive yellowing inhibitor. The technical scheme adopts a cationic modifier, uses the synergistic effect of a free radical scavenger, a photoinduced yellowing inhibitor and a reactive yellowing inhibitor, is used in the production process of various bleached plant fibers, can be well attached to the plant fibers to remove intermediate phenoxy radicals and the like in the yellowing process, prevents the generation of chromophoric substances, effectively prevents the plant fibers from yellowing, and improves the quality of products made of the plant fibers.
Description
Technical Field
The invention belongs to the technical field of new chemical materials, and relates to an additive for inhibiting yellowing of plant fibers.
Background
Due to the problems of worldwide raw material shortage, environmental pollution and the like, lignin is kept as much as possible in the preparation process of the plant fiber, and the yield is further improved. However, lignin contains a large number of chromophoric groups with quinoid structures, phenols, metal chelates, carbonyl or carbon-carbon double bonds and other structures, and the chromophoric groups regenerate chromophoric groups under the action of external factors such as illumination, high temperature, humidity, acid-base environment, metal ions and the like, so that the whiteness of plant fibers is rapidly reduced, the phenomenon of yellowing or color reversion of the plant fibers is caused, and the application range and the economic benefit of the plant fibers are limited to a great extent. At present, most yellowing inhibitors have no affinity to plant fibers, can only be used on the surfaces of products made of the plant fibers, and cannot be adapted to the production process of the plant fibers.
Disclosure of Invention
The application aims to provide an additive for inhibiting yellowing of plant fibers, which can solve the problem of yellowing of the plant fibers.
In order to achieve the above purpose, the present application is achieved by the following technical solutions.
The technical scheme of the application is to provide an additive for inhibiting plant fiber from yellowing, which comprises the following raw material components in parts by weight: 10-20 parts of free radical scavenger, 5-15 parts of light-induced yellowing inhibitor, 2-10 parts of cationic modifier and 1-10 parts of reactive yellowing inhibitor.
The phenoxy radical is the most main intermediate in the plant fiber yellowing process, then various colored substances are further generated under the action of ambient oxygen or alkyl peroxy radical, and a free radical trapping agent or a free radical scavenging agent is added on the basis of the phenoxy radical to remove the intermediates in the yellowing process and prevent the colored substances from being generated, thereby playing the role of preventing the plant fiber from yellowing.
The technical scheme adopts a cationic modifier, uses the synergistic effect of a free radical scavenger, a photoinduced yellowing inhibitor and a reactive yellowing inhibitor, is used in the production process of various bleached plant fibers, can be well attached to the plant fibers to remove intermediate phenoxy radicals and the like in the yellowing process, prevents the generation of chromophoric substances, effectively prevents the plant fibers from yellowing, and improves the quality of products made of the plant fibers.
As an embodiment of the technical scheme, the free radical scavenger is selected from one or more of ascorbic acid, isoascorbic acid and cyclohexadiene.
As an embodiment of the technical solution, the light-induced yellowing inhibitor is selected from one or two of polyvinylpyrrolidone and polyethylene glycol.
As an embodiment of the technical scheme, the cationic modifier is a cationic high-molecular reticular polymer and is selected from one or two of cationic polyacrylamide and cationic starch.
As an embodiment of the technical scheme, the reactive yellowing inhibitor is 4-amino-2, 2,6, 6-tetramethylpiperidine.
The technical scheme is that the coating comprises, by weight, 10-18 parts of ascorbic acid, 10-15 parts of polyvinylpyrrolidone, 2-10 parts of a cationic modifier and 1-10 parts of 4-amino-2, 2,6, 6-tetramethylpiperidine.
The technical scheme is that the composition comprises 15-20 parts of erythorbic acid, 5-10 parts of polyethylene glycol, 2-10 parts of a cationic modifier and 1-10 parts of 4-amino-2, 2,6, 6-tetramethylpiperidine.
The technical scheme is that the composition comprises, by weight, 10-20 parts of cyclohexadiene, 5-10 parts of polyvinylpyrrolidone, 2-10 parts of a cationic modifier and 1-10 parts of 4-amino-2, 2,6, 6-tetramethylpiperidine.
The technical scheme is that the modified ethylene-propylene diene copolymer comprises, by weight, 10-20 parts of cyclohexadiene, 5-15 parts of polyethylene glycol, 2-10 parts of a cationic modifier and 1-10 parts of 4-amino-2, 2,6, 6-tetramethylpiperidine.
As the embodiment of the technical scheme, the preparation method of the additive for inhibiting the plant fiber from yellowing comprises the following steps: adding deionized water into a reactor, adding a light-induced yellowing inhibitor, a free radical scavenger, a cationic modifier and a reactive yellowing inhibitor, reacting for 1-3 hours at the reaction temperature of 45-55 ℃, and cooling to obtain the additive for inhibiting the yellowing of the plant fibers.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Detailed Description
The technical solutions of the present application are further described below with reference to examples, and it is obvious that the described examples are some examples of the present application, but not all examples. Wherein the raw materials used in the examples are directly accessible by disclosure.
Example 1:
the total weight of the raw materials in this example was 100 kg, wherein 10 kg of ascorbic acid, 10 kg of polyvinylpyrrolidone, 5 kg of polyacrylamide, 5 kg of 4-amino-2, 2,6, 6-tetramethylpiperidine (referred to as 4-amino-TEMP) and 70 kg of deionized water were used.
Adding 70 kg of deionized water into a reactor with a stirrer, slowly adding 10 kg of polyvinylpyrrolidone, dissolving, then adding 10 kg of ascorbic acid, 5 kg of 4-ammonia-TEMP and 5 kg of polyacrylamide, reacting for 2 hours at the reaction temperature of 50 ℃, and cooling to obtain the additive for inhibiting the yellowing of the plant fibers.
Example 2:
the total weight of the raw materials of this example was 100 kg, in which 18 kg of ascorbic acid, 12 kg of polyvinylpyrrolidone, 8 kg of cationic starch, 8 kg of 4-ammonia-TEMP, and 54 kg of deionized water were added.
Adding 54 kg of deionized water into a reactor with a stirrer, slowly adding 12 kg of polyvinylpyrrolidone, dissolving, adding 18 kg of ascorbic acid, 8 kg of 4-ammonia-TEMP and 8 kg of cationic starch, reacting for 2 hours at the reaction temperature of 50 ℃, and cooling to obtain the additive for inhibiting the yellowing of the plant fibers.
Example 3:
the total weight of the raw materials of this example is 100 kg, wherein the ascorbic acid 20 kg, the polyethylene glycol 15 kg, the cationic polymer network 10 kg, the 4-ammonia-TEMP 10 kg, and the deionized water 45 kg.
Adding 45 kg of deionized water into a reactor with a stirrer, slowly adding 15 kg of polyethylene glycol, dissolving, then adding 20 kg of isoascorbic acid, 10 kg of 4-ammonia-TEMP and 10 kg of polyacrylamide, reacting for 2 hours at the reaction temperature of 50 ℃, and cooling to obtain the additive for inhibiting the yellowing of the plant fibers.
Example 4:
the total weight of the raw materials of this example is 100 kg, wherein the ascorbic acid 15 kg, the polyethylene glycol 10 kg, the cationic polymer network 5 kg, the 4-ammonia-TEMP 5 kg, and the deionized water 75 kg.
Adding 75 kg of deionized water into a reactor with a stirrer, slowly adding 10 kg of polyethylene glycol, dissolving, adding 15 kg of isoascorbic acid, 5 kg of 4-ammonia-TEMP and 5 kg of polyacrylamide, reacting for 2 hours at the reaction temperature of 50 ℃, and cooling to obtain the additive for inhibiting the yellowing of the plant fibers.
Example 5:
the total weight of the raw materials in this example is 100 kg, wherein 17 kg of cyclohexadiene, 10 kg of polyethylene glycol, 7 kg of cationic polymer network, 8 kg of 4-ammonia-TEMP, and 58 kg of deionized water.
Adding 58 kg of deionized water into a reactor with stirring, slowly adding 10 kg of polyethylene glycol for dissolving, then adding 17 kg of cyclohexadiene, 8 kg of 4-ammonia-TEMP and 7 kg of polyacrylamide, reacting for 2 hours at the reaction temperature of 50 ℃, and cooling to obtain the additive for inhibiting the yellowing of the plant fibers.
Example 6:
the total weight of the raw materials of this example is 100 kg, wherein 16 kg of cyclohexadiene, 13 kg of polyvinylpyrrolidone, 7 kg of cationic high-molecular-weight network polymer, 9 kg of 4-ammonia-TEMP, and 55 kg of deionized water.
Adding 55 kg of deionized water into a reactor with stirring, slowly adding 13 kg of polyvinylpyrrolidone for dissolving, then adding 16 kg of cyclohexadiene, 9 kg of 4-ammonia-TEMP and 7 kg of polyacrylamide for reacting for 2 hours at the reaction temperature of 50 ℃, and cooling to obtain the additive for inhibiting the yellowing of the plant fibers.
Testing by a contrast experiment;
4g of the bleaching and yellowing inhibitor for plant fibers obtained in examples 1 to 6 were put into six containers each containing 100g of a plant fiber having a concentration of 15%, and stirred uniformly, and then a paper sample (62.8% ISO) having a quantitative rating of 100g/m2 was taken out on a paper machine to obtain six paper samples corresponding to examples 1 to 6.
Meanwhile, 100g of plant fiber with the concentration of 15 percent is prepared, and then a paper sample with the quantitative of 100g/m2 is taken as a blank sample on a sheet-making machine.
The six paper samples and the blank sample obtained above were subjected to ultraviolet light aging in an ultraviolet lamp weathering test chamber for 26 hours at the same time, and the whiteness thereof was measured and the whiteness yellowing value thereof was calculated, respectively, and the results are shown in table 1.
TABLE 1 Effect of the additives of the examples on the whiteness performance of vegetable fibres
As can be seen from table 1, compared with the blank sample without the plant fiber bleaching anti-yellowing agent, after aging for 26 hours, the whiteness yellowing value of the plant fiber after the additive for inhibiting yellowing of the plant fiber in each example is added is obviously reduced, which indicates that the additive for inhibiting yellowing of the plant fiber of the uncongealed tofu can effectively prevent yellowing of the bleached plant fiber and improve the product quality.
Claims (10)
1. The additive for inhibiting the yellowing of the plant fibers is characterized by comprising the following raw material components in parts by weight: 10-20 parts of free radical scavenger, 5-15 parts of light-induced yellowing inhibitor, 2-10 parts of cationic modifier and 1-10 parts of reactive yellowing inhibitor.
2. The additive for inhibiting yellowing of plant fibers according to claim 1, wherein the radical scavenger is one or more selected from ascorbic acid, erythorbic acid and cyclohexadiene.
3. The additive for inhibiting plant fiber yellowing according to claim 1, wherein the light-induced yellowing inhibitor is one or two selected from polyvinylpyrrolidone and polyethylene glycol.
4. The additive for inhibiting plant fiber yellowing according to claim 1, wherein the cationic modifier is a cationic high molecular weight network polymer selected from one or two of cationic polyacrylamide and cationic starch.
5. The additive for inhibiting yellowing of plant fibers according to claim 1, wherein the reactive yellowing inhibitor is 4-amino-2, 2,6, 6-tetramethylpiperidine.
6. The additive for inhibiting yellowing of plant fibers according to claim 1, wherein the additive comprises 10 to 18 parts of ascorbic acid, 10 to 15 parts of polyvinylpyrrolidone, 2 to 10 parts of a cationic modifier, and 1 to 10 parts of 4-amino-2, 2,6, 6-tetramethylpiperidine.
7. The additive for inhibiting yellowing of plant fibers according to claim 1, wherein the additive comprises 15 to 20 parts of erythorbic acid, 5 to 10 parts of polyethylene glycol, 2 to 10 parts of a cationic modifier, and 1 to 10 parts of 4-amino-2, 2,6, 6-tetramethylpiperidine.
8. The additive for inhibiting plant fiber yellowing according to claim 1, wherein the additive comprises 10 to 20 parts of cyclohexadiene, 5 to 10 parts of polyvinylpyrrolidone, 2 to 10 parts of cationic modifier, and 1 to 10 parts of 4-amino-2, 2,6, 6-tetramethylpiperidine.
9. The additive for inhibiting plant fiber yellowing according to claim 1, wherein the additive comprises 10-20 parts of cyclohexadiene, 5-15 parts of polyethylene glycol, 2-10 parts of a cationic modifier, and 1-10 parts of 4-amino-2, 2,6, 6-tetramethylpiperidine.
10. The additive for inhibiting yellowing of plant fibers according to claim 1, which is prepared by: adding deionized water into a reactor, adding a light-induced yellowing inhibitor, a free radical scavenger, a cationic modifier and a reactive yellowing inhibitor, reacting for 1-3 hours at the reaction temperature of 45-55 ℃, and cooling to obtain the additive for inhibiting the yellowing of the plant fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210936109.0A CN115094667A (en) | 2022-08-05 | 2022-08-05 | Additive for inhibiting plant fiber yellowing |
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| CN202210936109.0A CN115094667A (en) | 2022-08-05 | 2022-08-05 | Additive for inhibiting plant fiber yellowing |
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| CN202210936109.0A Pending CN115094667A (en) | 2022-08-05 | 2022-08-05 | Additive for inhibiting plant fiber yellowing |
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