CN102535249B - Novel wet strengthening agent for papermaking and preparation method and application thereof - Google Patents
Novel wet strengthening agent for papermaking and preparation method and application thereof Download PDFInfo
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Abstract
The invention relates to the technical field of high polymer materials and provides a novel wet strengthening agent for papermaking and a preparation method of the novel wet strengthening agent, aiming at solving the problem that a wet strengthening agent with low raw material cost and high wet strengthing property is needed in the current papermaking industry. The novel wet strengthening agent comprises the following components in parts by weight: 3-30 parts of intermediate A, 3-30 parts of intermediate B, 3-15 parts of chloropropylene oxide, 1-20 parts of crosslinking agent and 1-20 parts of polyacrylamide. The wet strengthening agent paper not only has superior wet strengthing property but also improves the dry strengthening effect of the paper, has low cost and increases the economic benefit.
Description
Technical field
The present invention relates to technical field of polymer materials, relate in particular to a kind of Novel wet strengthening agent for papermaking and preparation method thereof and application.
Technical background
Along with improving constantly of people's living standard, the consumption of wet-strength paper continues to increase, and no matter is speciality paper, wrapping paper or daily paper product, all uses wet strength agent.Along with the arrival of 21st century, each producer proceeds to the competition of product quality and price gradually from original extensive market share.And the paper making additive that adds different performance is a shortcut of getting twice the result with half the effort.Due to the specific use of wet-strength paper, require to there is certain wet strength, wet strength agent plays a part very important in paper thus.
Now widely used PAE wet strength agent, it is Polyamide-Polyamsne-Epichlorohydrin resin (being called for short PAE), effect is relatively good, the conventional preparation method of existing PAE is two-step method: the 1st step is that dicarboxylic acids or carboxylic acid derivates (conventional adipic acid) and polyethylene polyamine (commonly using diethylenetriamine) are first made polyamide prepolymer polymers, the 2nd step is in the aqueous solution, to make this prepolymer react with epoxychloropropane, when reaching desirable molecular mass or viscosity number, by adding acid, reaction is diluted and stabilisation, obtain product.But the polyethylene polyamine raw material that this series products adopts is more expensive, and Non-crosslinked modification, and its degree of cross linking degree is low, and molecular weight is lower, and the wet strength that the unit's of causing effective ingredient improves is low, cause using the cost of wet reinforcing agent higher, a lot of scholars also carry out study on the modification to PAE for this reason, as disclosed in Chinese patent literature CN101328696 " a kind of wet strength agent for paper making and preparation method thereof ", this disclosure of the invention a kind of wet strength agent for paper making, it is by the daiamid epoxy chloropropane of aliphatic dialdehydes class crosslinking agent modification (modification PAE), Chinese patent CN101302731 disclosed " preparation method of organosilicon modified paper sheet humidifying strong agent ", it is that raw material synthesizing polyamides polyamine intermediate compound and epoxychloropropane and organosilicon silane coupler react that diacid acid and polyamine are take in this invention, take organosilan as crosslinking agent, prepare organic-silicon-modified PAE.But these crosslinking agent prices are more expensive, make the use cost of wet reinforcing agent still higher, for some demands, compared with the speciality paper of high wet strength, effect is undesirable; Can give copying back of waste paper simultaneously; Become the evenness of paper to bring adverse effect; When increasing wet strength, can not obviously improve dry strength.
Summary of the invention
For solving the problem that needs the wet reinforcing agent of a kind of low cost of material, high humidity epistasis energy in current paper industry, the present invention proposes a kind of Novel wet strengthening agent for papermaking and preparation method thereof, wet reinforcing agent paper of the present invention not only has superior wet strengthening the property, and improve paper and do enhancing effect, low cost, has increased economic benefit.
The present invention is achieved by the following technical solutions: a kind of Novel wet strengthening agent for papermaking, by following component, to be made, and the weight portion of each component is:
Intermediate A 3～30,
Intermediate B 3～30,
Epoxychloropropane 3～15,
Crosslinking agent 1～20,
Polyacrylamide 1～20,
Water adds to and makes its total solid content reach 10～50%,
As preferably,
Intermediate A 3～10,
Intermediate B 3～10,
Epoxychloropropane 3～10,
Crosslinking agent 2～5,
Polyacrylamide 1～5,
Water adds to and makes its total solid content reach 10～30%,
Wherein, described intermediate A, is made by following component, and the weight portion of each component is:
Mixed amine 3～15,
Binary acid 3～15,
Water adds to and makes its total solid content reach 15～25%,
Wherein, described intermediate B, is made by following component, and the weight portion of each component is:
Mixed amine 3～15,
Epoxychloropropane 3～15,
Water adds to and makes its total solid content reach 10～30%,
Mixed amine in above-mentioned intermediate A and intermediate B is selected from the compound of one or more arbitrary proportions in diethylenetriamine, triethylene tetramine, tetraethylene pentamine, ammoniacal liquor;
Binary acid described in intermediate A is selected from succinic acid, glutaric acid, the compound of one or more arbitrary proportions in adipic acid.
Described crosslinking agent is selected from methylol (methyl) acrylamide, ethoxy acrylamide, ethoxyl methyl acrylamide, the composite mixture of one or more in glycidyl methacrylate.
Described polyacrylamide is cationic-type polyacrylamide.Cationic-type polyacrylamide is the reinforcing agent with dry, wet humidification, and can make paper have higher whiteness, and broken is easy to disperse pulping after reclaiming, and hardening time is short and moderate.
Technical problem to be solved by this invention is to be exactly to adopt efficient crosslinking agent and promoter (cationic polyacrylamide), improves the wet of wet strength agent and strengthens the property, and reduces wet strength agent cost of material simultaneously.Therefore adopt the raw material different from the general wet strength agent of conventional preparation, synthesizing new wet strength agent, has avoided raw-material high price, not only improves the wet enhancing effect of wet strength agent, and has reduced cost.
A preparation method for Novel wet strengthening agent for papermaking, carries out according to the following steps:
(1) take the each component of intermediate A, then mixed amine and binary acid are added in reactor, stir and be warmed up to 170～190 ℃, be incubated 50～120 minutes, add water and make its total solid content reach 15～25%, as intermediate A;
(2) take the each component of intermediate B, then mixed amine, epoxychloropropane are added in reactor, add water to total solid content and reach 10～30%, then fully stir, be warmed up to 70～80 ℃, be incubated 60～120 minutes, as intermediate B;
(3) intermediate A, intermediate B, epoxychloropropane, polyacrylamide and crosslinking agent are added in reactor and fully stirred by weight portion separately, be warmed up to 60～80 ℃ and insulation, when system viscosity reaches 50-200CPS, add water to make its total solid content reach 10～50%, be preferably 10～30%, then add in hydrochloric acid, sulfuric acid or acetic acid the composite mixture of one or more, adjust pH to 2～3, after cool to room temperature, (20～25 ℃), obtain product of the present invention.
Epoxychloropropane, polyacrylamide reaction generate polyamine epichlorohydrin resin, are cationic water-soluble polymer.When set paper pulp, do not need aluminum sulfate, make paper soft, do not ooze out free formaldehyde, can be used for food wrapper and general paper and cardboard, there is the kind of development prospect.
The present invention overcomes the existing deficiency of prior art, a kind of efficient wet strength agent is provided, and can improve paper dry strength and evenness simultaneously, effectively reduced wet strong cost, we utilize three-step approach synthesis technique for this reason, adopt efficient crosslinking agent and promoter (cationic polyacrylamide), with more cheap mixed amine, replace conventional diethylenetriamine simultaneously. in the time of within Novel wet reinforcing agent of the present invention adds slurry, with the quick combination of paper fiber, quick and paper fiber forms strong hydrogen bonding, the moment of drying at paper, hydroxyl between functional group on wet strength agent macromolecular chain and functional group and on fiber reacts, make itself and fiber be mixed to form a molecule network structure, the species distribution of macromolecule network structure is between fiber, and between adjacent fiber, between molecular resin, form the amorphous friendship duty of network structure dike, limit interfibrous activity, and effectively stoped the bonding of water and fiber.This just makes the wet efficiency (being the wet strength that unit active ingredient improves) strengthening be greatly improved, thereby has improved cost performance, meanwhile can also obviously improve the dry enhancing of paper effect, and keep good evenness.
A kind of Novel wet strengthening agent for papermaking is applied in papermaking, directly adds wet reinforcing agent in paper pulp, and addition is in oven dry stock per ton, to add 5～150kg wet reinforcing agent of the present invention, and depending on required wet strength.The in the situation that of same texts, adding the product that amount of the present invention adds on the market will, less with 5～15%, provide cost savings.In the time of within Novel wet reinforcing agent of the present invention adds slurry, with the quick combination of paper fiber, quick and paper fiber forms strong hydrogen bonding, when the moment that paper is dried, the hydroxyl between the functional group on wet strength agent macromolecular chain and functional group and on fiber reacts, and makes the tridimensional network of System forming complexity, be not only paper and there is superior wet strengthening the property, and improve the dry effect that strengthens of paper, meanwhile, keep good evenness.Through test, add the paper of Novel wet reinforcing agent of the present invention, in water, soak after 10 minutes, strength retention ratio more than 30%, can reach 40～50% during high addition.Because Novel wet reinforcing agent of the present invention has good wet enhancing effect, go for all kinds of wet strong wet-strength papers that require that have.
Compared with prior art the invention has the beneficial effects as follows:
(1) add that the present invention produces paper not only there is superior wet strengthening the property, and improve the dry effect that strengthens of paper, keep good evenness simultaneously.
(2) cost is low, has increased economic benefit.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, required raw material is commercially available prod.
Embodiment 1
(1) adipic acid that the triethylene tetramine that the diethylenetriamine that is 4.5 by weight portion, weight portion are 0.5, weight portion are 5 adds in reactor, stirs, and is warming up to 180 ℃, is incubated 120 minutes, adds water and makes its solid content reach 20%, as intermediate A.
(2) epoxychloropropane that the water that the tetraethylene pentamine that the ammoniacal liquor that is 4 by weight portion, weight portion are 0.5, weight portion are 5 and weight portion are 5 adds fully stirring in reactor, add water to solid content 20%, be warmed up to 70 ℃, be incubated 120 minutes, as intermediate B.
(3) cationic polyacrylamide that the intermediate B that the intermediate A that is 5 by the weight portion obtaining above, weight portion are 5, weight portion are the epoxychloropropane of 5 parts, crosslinking agent methylol (methyl) acrylamide that weight portion is 1.5, weight portion is 1.5 adds in reactor and fully stirs, be warming up to 65 ℃, be incubated 70 minutes, cessation reaction when viscosity reaches 150CPS, adding water makes its solid content reach 25%, add hydrochloric acid solution (10% concentration), adjust pH to 2.5, cool to room temperature obtains Novel wet reinforcing agent product, and product shelf life is more than 3 months.
Application examples 1
By existing technology amount ratio, the paper pulp of metering and water are mixed, stir, obtain uniform paper fiber suspension, then in pulp suspension, add respectively bone-dry paper fiber to weigh the wet reinforcing agent product of 0.3% or 0.6% embodiment, 1 preparation, be equivalent to respectively a ton paper consumption and be about 25kg and 50kg, stir, then, online, squeezing, dry, obtain two kinds of patterns that complete and test.
Embodiment 2
(1) adipic acid that the triethylene tetramine that the ammoniacal liquor that is 5 by weight portion, weight portion are 0.5, weight portion are 10 adds in reactor, and stirs, and is warming up to 190 ℃, is incubated 100 minutes, and add water and make its total solid content reach 25%, as intermediate A,
(2) epoxychloropropane that the tetraethylene pentamine that the ammoniacal liquor that is 5 by weight portion, weight portion are 1, weight portion are 10 adds fully stirring in reactor, and adding water to total solid content is 30%, is warmed up to 80 ℃, is incubated 80 minutes, as intermediate B.
(3) the above intermediate A obtaining that is 10 by weight portion, the intermediate B that weight portion is 10, the epoxychloropropane that weight portion is 10, the crosslinking agent ethoxyl methyl acrylamide that weight portion is 5, the cationic polyacrylamide that weight portion is 1 add fully stirring in reactor, be warming up to 65 ℃, insulation at 65 ℃, when viscosity reaches 100CPS, cooling cessation reaction, adding water makes its total solid content reach 20%, then add sulfuric acid solution (25% concentration), adjust pH to 3, after cool to room temperature, obtain Novel wet reinforcing agent product, product shelf life is more than 3 months.
Application examples 2
By existing technology amount ratio, the paper pulp of metering and water are mixed, stir, obtain uniform paper fiber suspension, then in pulp suspension, add respectively bone-dry paper fiber to weigh the wet reinforcing agent product of 0.3% or 0.6% embodiment, 2 preparations, be equivalent to respectively a ton paper consumption and be about 25kg and 50kg, stir, then, online, squeezing, dry, obtain two kinds of patterns that complete and test.
Embodiment 3
(1) adipic acid that the tetraethylene pentamine that the ammoniacal liquor that is 3 by weight portion, weight portion are 0.5, weight portion are 3 adds in reactor, stirs and be warming up to 170 ℃, is incubated 50 minutes, and adding water, to make its solid content be 15%, as intermediate A.
(2) epoxychloropropane that the triethylene tetramine that the diethylenetriamine that is 4 by weight portion, weight portion are 0.5, weight portion are 3 adds fully stirring in reactor, adding water to total solid content is 30%, then fully stirs, and is warmed up to 75 ℃, be incubated 100 minutes, as intermediate B.
(3) the above intermediate A obtaining that is 3 by weight portion, the intermediate B that weight portion is 5, the epoxychloropropane that weight portion is 5, the crosslinking agent glycidyl methacrylate that weight portion is 1.5, the cationic polyacrylamide that weight portion is 1.5 add fully stirring in reactor, be warming up to 70 ℃, insulation at 70 ℃, when viscosity reaches 150CPS, adding water, to make its total solid content be 15%, then add acetum (10% concentration), adjust pH to 2, after cool to room temperature, obtain Novel wet reinforcing agent product, product shelf life is more than 3 months.
Application examples 3
By existing technology amount ratio, the paper pulp of metering and water are mixed, stir, obtain uniform paper fiber suspension, then in pulp suspension, add respectively bone-dry paper fiber to weigh the wet reinforcing agent product of 0.3% or 0.6% embodiment, 3 preparations, be equivalent to respectively a ton paper consumption and be about 20kg and 50kg, stir, then, online, squeezing, dry, obtain two kinds of patterns that complete and test.
Embodiment 4
(1) succinic acid that the triethylene tetramine that the diethylenetriamine that is 2 by weight portion, weight portion are 1, weight portion are 3 adds in reactor, opens stirring, is warming up to 180 ℃, is incubated 120 minutes, adds water and makes its total solid content reach 20%, as intermediate A.
(2) epoxychloropropane that the ammoniacal liquor that is 2.5 by weight portion, 0.5 part of tetraethylene pentamine, weight portion are 3 adds in reactor and fully stirs, and adds water and makes its total solid content reach 20%, then fully stirs, and is warmed up to 70 ℃, is incubated 70 minutes, as intermediate B.
(3) crosslinking agent methylol (methyl) acrylamide that the epoxychloropropane that the intermediate B that is 5 by the intermediate A weight portion 10 obtaining above, weight portion, weight portion are 7, weight portion are 2.5, the cationic polyacrylamide that weight portion is 2.5 add fully stirring in reactor, be warming up to 65 ℃, insulation at 65 ℃, when viscosity reaches 200CPS, cooling cessation reaction, adding water, to make its total solid content be 25%, then add hydrochloric acid solution (10% concentration), adjust pH to 2.5, after cool to room temperature, obtain Novel wet reinforcing agent product.
Application examples 4
By existing technology amount ratio, the paper pulp of metering and water are mixed, stir, obtain uniform paper fiber suspension, then in pulp suspension, add respectively bone-dry paper fiber to weigh the wet reinforcing agent product of 0.3% or 0.6% embodiment, 4 preparations, be equivalent to respectively a ton paper consumption and be about 25kg and 50kg, stir, then, online, squeezing, dry, obtain two kinds of patterns that complete and test.
Embodiment 5
(1) glutaric acid that the diethylenetriamine that is 5 by weight portion, 0.5 part of triethylene tetramine, weight portion are 15 adds in reactor, stirs and be warming up to 180 ℃, is incubated 100 minutes, adds water and makes its total solid content reach 20%, as intermediate A.
(2) epoxychloropropane that the ammoniacal liquor that is 6 by weight portion, 1 part of tetraethylene pentamine, weight portion are 5 adds in reactor and fully stirs, and adding water to total solid content is 25%, then fully stirs, and is warmed up to 80 ℃, is incubated 80 minutes, as intermediate B.
(3) intermediate A obtaining is above got to weight is 5, intermediate B get weight portion be 8 and the weight portion epoxychloropropane that is 10, crosslinking agent ethoxyl methyl acrylamide that weight portion is 1, ethoxy acrylamide that weight portion is 1, cationic polyacrylamide that weight portion is 1 add in reactor and fully stir, be warming up to 65 ℃, insulation at 65 ℃, when viscosity reaches 100CPS, cooling cessation reaction, adding water, to make its solid content be 25%, then add sulfuric acid solution (25% concentration), adjusting pH is 2, obtains Novel wet reinforcing agent product after cool to room temperature.
Application examples 5
By existing technology amount ratio, the paper pulp of metering and water are mixed, stir, obtain uniform paper fiber suspension, then in pulp suspension, add respectively bone-dry paper fiber to weigh the wet reinforcing agent product of 0.3% or 0.6% embodiment, 5 preparations, be equivalent to respectively a ton paper consumption and be about 25kg and 50kg, stir, then, online, squeezing, dry, obtain two kinds of patterns that complete and test.
Embodiment 6
(1) adipic acid that the diethylenetriamine that is 15 by weight portion, weight portion are 15 adds in reactor, stirs to open to be warming up to 170 ℃, is incubated 120 minutes, adds water and makes its total solid content reach 20%, as intermediate A.
(2) ammoniacal liquor that is 15 by weight portion, the epoxychloropropane that weight portion is 15 adds in reactor fully and stirs, and adding water, to make its total solid content be 20%, then fully stirs, and is warmed up to 70 ℃, is incubated 60 minutes, as intermediate B.
(3) intermediate A obtaining above being got to weight portion is 6, it is 7 that intermediate B is got weight portion, with the weight portion epoxychloropropane that is 7, weight portion is 1.5 crosslinking agent methylol (methyl) acrylamide, weight portion is 0.5 ethoxy acrylamide, weight portion is that 5 cationic polyacrylamide adds in reactor and fully stirs, be warming up to 65 ℃, insulation at 65 ℃, when viscosity reaches 100CPS, cooling cessation reaction, adding water makes its solid content reach 30%, then add hydrochloric acid solution (10% concentration), adjusting pH is 3, after cool to room temperature, obtain Novel wet reinforcing agent product.
Application examples 6
By existing technology amount ratio, the paper pulp of metering and water are mixed, stir, obtain uniform paper fiber suspension, then in pulp suspension, add respectively bone-dry paper fiber to weigh the wet reinforcing agent product of 0.3% or 0.6% embodiment, 6 preparations, be equivalent to respectively a ton paper consumption and be about 25kg and 50kg, stir, then, online, squeezing, dry, obtain two kinds of patterns that complete and test.
Comparative example
Adopt conventional two-step method to prepare PAE, the first step, the water that the diethylenetriamine that the adipic acid that weight portion is 15, weight portion are 11 and weight portion are 5, is heated to 170 ℃ of temperature, is incubated 120 minutes, and adding water, to make its solid content be 30%, obtains performed polymer PA; Second step, the epoxychloropropane that the water that weight portion is 10 performed polymer PA, weight portion is 20 and weight portion are 3, be heated to 65 ℃, insulation, when viscosity reaches 100CPS, adding weight portion is 1 hydrochloric acid, and adds water to 100 weight portions, make its solid content reach 25%, cool to room temperature obtains comparative example product.
Effect: add bone-dry paper fiber to weigh wet reinforcing agent product prepared by 0.3% and 0.6% comparative example in pulp suspension, be equivalent to a ton paper consumption and be about 25kg and 50kg, online, squeezing, dries, and obtains two kinds and becomes paper, and test, test result is as follows:
Comparative result
Test result is as shown in table 1:
Table 1
Test result shows, under identical addition, the wet potent fruit of product of the present invention will 10%～20% than comparative example product, and can obviously improve dry strength.
Claims (4)
1. a Novel wet strengthening agent for papermaking, is characterized in that, the wet reinforcing agent of described paper grade (stock) is made by following component, and the weight portion of each component is:
Intermediate A 3 ~ 30,
Intermediate B 3 ~ 30,
Epoxychloropropane 3 ~ 15,
Crosslinking agent 1 ~ 20,
Polyacrylamide 1 ~ 20,
Water adds to and makes its total solid content reach 10 ~ 50%;
Wherein, intermediate A, is made by following component, and the weight portion of each component is:
Mixed amine 3 ~ 15,
Binary acid 3 ~ 15,
Water adds to and makes its total solid content reach 15 ~ 25%;
Wherein, intermediate B, is made by following component, and the weight portion of each component is:
Mixed amine 3 ~ 15,
Epoxychloropropane 3 ~ 15,
Water adds to and makes its total solid content reach 10 ~ 30%,
Mixed amine in above-mentioned intermediate A and intermediate B is selected from the compound of one or more arbitrary proportions in diethylenetriamine, triethylene tetramine, tetraethylene pentamine, ammoniacal liquor;
Binary acid described in intermediate A is selected from succinic acid, glutaric acid, the compound of one or more arbitrary proportions in adipic acid;
Described crosslinking agent is selected from methylol (methyl) acrylamide, ethoxy acrylamide, ethoxyl methyl acrylamide, glycidyl methacrylate the composite mixture of one or more;
Described polyacrylamide is cationic-type polyacrylamide;
Preparing the method for the wet reinforcing agent of described paper grade (stock) carries out according to the following steps:
(1) take the each component of intermediate A, then mixed amine and binary acid are added in reactor, stir and be warmed up to 170 ~ 190 ℃, be incubated 50 ~ 120 minutes, add water and make its total solid content reach 15 ~ 25%, as intermediate A;
(2) take the each component of intermediate B, then mixed amine, epoxychloropropane are added in reactor, add water to total solid content and reach 10 ~ 30%, then fully stir, be warmed up to 70 ~ 80 ℃, be incubated 60 ~ 120 minutes, as intermediate B;
(3) intermediate A, intermediate B, epoxychloropropane, polyacrylamide and crosslinking agent are added in reactor and fully stirred by weight portion separately, be warmed up to 60 ~ 80 ℃ and insulation, when system viscosity reaches 50-200CPS, add water to make its total solid content reach 10 ~ 50%, then the composite mixture that adds in hydrochloric acid, sulfuric acid or acetic acid one or more, adjust pH to 2 ~ 3, after cool to room temperature, obtain Novel wet strengthening agent for papermaking.
2. a kind of Novel wet strengthening agent for papermaking according to claim 1, is characterized in that, the wet reinforcing agent of described paper grade (stock) is made by following component, and the weight portion of each component is:
Intermediate A 3 ~ 10,
Intermediate B 3 ~ 10,
Epoxychloropropane 3 ~ 10,
Crosslinking agent 2 ~ 5,
Polyacrylamide 1 ~ 5,
Water adds to and makes its total solid content reach 10 ~ 30%.
3. an a kind of Novel wet strengthening agent for papermaking as claimed in claim 1 application in papermaking.
4. the application of a kind of Novel wet strengthening agent for papermaking according to claim 3, is characterized in that, directly adds wet strength agent in paper pulp, and addition is in oven dry stock per ton, to add the Novel wet strengthening agent for papermaking of 5 ~ 150kg.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5994449A (en) * | 1997-01-23 | 1999-11-30 | Hercules Incorporated | Resin compositions for making wet and dry strength paper and their use as creping adhesives |
| WO2001036491A1 (en) * | 1999-11-19 | 2001-05-25 | Akzo Nobel N.V. | Wet strength agent and method for production thereof |
| CN1388288A (en) * | 2002-02-20 | 2003-01-01 | 杭州市化工研究所 | Dry paper reinforcer |
| WO2007071566A1 (en) * | 2005-12-22 | 2007-06-28 | Clariant International Ltd | Dry strength system for the production of paper and board |
| CN101302731A (en) * | 2008-06-06 | 2008-11-12 | 陕西科技大学 | Method for preparing organosilicon modified paper sheet humidifying strong agent |
| CN101929109A (en) * | 2010-09-21 | 2010-12-29 | 浙江池禾化工有限公司 | Active diluent modified paper wet strength agent and preparation method thereof |
-
2011
- 2011-12-31 CN CN201110457074.4A patent/CN102535249B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5994449A (en) * | 1997-01-23 | 1999-11-30 | Hercules Incorporated | Resin compositions for making wet and dry strength paper and their use as creping adhesives |
| WO2001036491A1 (en) * | 1999-11-19 | 2001-05-25 | Akzo Nobel N.V. | Wet strength agent and method for production thereof |
| CN1388288A (en) * | 2002-02-20 | 2003-01-01 | 杭州市化工研究所 | Dry paper reinforcer |
| WO2007071566A1 (en) * | 2005-12-22 | 2007-06-28 | Clariant International Ltd | Dry strength system for the production of paper and board |
| CN101302731A (en) * | 2008-06-06 | 2008-11-12 | 陕西科技大学 | Method for preparing organosilicon modified paper sheet humidifying strong agent |
| CN101929109A (en) * | 2010-09-21 | 2010-12-29 | 浙江池禾化工有限公司 | Active diluent modified paper wet strength agent and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| PAE与丙烯酰胺接枝共聚改性;王云芳等;《合成树脂及塑料》;20021231;第19卷(第6期);19-22 * |
| 沈一丁等.聚酰胺多胺环氧氯丙烷的改性及应用进展.《中国造纸》.2005,第24卷(第4期),55-58. |
| 王云芳等.PAE与丙烯酰胺接枝共聚改性.《合成树脂及塑料》.2002,第19卷(第6期),19-22. |
| 聚酰胺多胺环氧氯丙烷的改性及应用进展;沈一丁等;《中国造纸》;20051231;第24卷(第4期);55-58 * |
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Inventor after: Lv Jianping Inventor after: Zhu Yangrong Inventor after: Shao Libin Inventor after: Wang Zengqi Inventor before: Lv Jianping Inventor before: Zhu Yangrong Inventor before: Shao Libin Inventor before: Wang Zengqi |