CN102635029A - Preparation method of cation sweet potato starch AKD (Alkyl Ketene Dimer) neutral/alkaline sizing agent - Google Patents
Preparation method of cation sweet potato starch AKD (Alkyl Ketene Dimer) neutral/alkaline sizing agent Download PDFInfo
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Abstract
The invention discloses a preparation method of a cation sweet potato starch AKD (Alkyl Ketene Dimer) neutral/alkaline sizing agent, which comprises the following steps of: firstly, carrying out degradation on the sweet potato starch under the action of fungal alpha-amylase; carrying out cationization on the degraded sweet potato starch by using 3-chloro-2-hydroxypropyltrimethyl ammonium chloride under the action of sodium hydroxide; then neutralizing by using acetic acid to obtain a cation sweet potato starch emulsifier; and finally emulsifying the AKD and paraffin wax by using the cation sweet potato starch emulsifier to obtain the cation sweet potato starch AKD neutral/alkaline sizing agent. The prepared cation sweet potato starch AKD neutral/alkaline sizing agent has positive charges and negative charges and is beneficial to combination with paper fibers with negative charges, thus the sizing property is greatly improved. According to the invention, in a preparation process, cation sweet potato starch with low price is used as the emulsifier, and the paraffin wax with low price is used for replacing partial AKD with higher price, thus the stabilization property and sizing property of emulsion are improved, and the sizing cost is lowered.
Description
Technical field
The invention belongs to polymer chemistry sizing agent technical field, among particularly a kind of cationic red sweet potato starch AKD/preparation method of alkaline sizing agent.
Background technology
The major progress of modern applying glue technology be in/popularization of alkaline bleach liquor sizing technology, during acid papermaking is converted into/alkaline paper-making is the great change on world's papermaking history.In/alkaline bleach liquor sizing is in papermaking process, the pH value is adjusted to more than 7, in principle without a kind of glue applying method of aluminum sulfate.In commonly used/alkaline sizing agent alkyl ketene dimer (being called for short AKD) is the product of phase late 1940s research and development; AKD be a kind of can with the response type of fibrin reaction in/alkaline sizing agent; It can be as internal sizing agent, again can be as Cypres.Its design feature is to be made up of active group and hydrophobic grouping; The fusing point of AKD is lower; Active group quaternary lactonic ring ability under the hot conditions of Dryer Section of Paper Machine in the molecule and the hydroxyl reaction on the cellulose form the beta-keto ester bond and are positioned on the fiber, and the hydrophobic group chain alkyl produces anti-water effect at fiber surface.Through among the AKD/alkaline bleach liquor sizing, the one way retention of paper whiteness, feel, WATER RESISTANCE, physical strength, printability, resistance to ag(e)ing and filler etc. all is significantly improved.And can to adopt cheap powdered whiting be filler, reduced content of harmful in the plain boiled water, improved the cyclic utilization rate of plain boiled water, and AKD is lower than the cost of acid accumulator size simultaneously.Adopt AKD carry out in/alkaline bleach liquor sizing can improve paper product quality and price, cut down the consumption of energy, improve environmental pollution and paper machine operation performance etc.; Therefore can obtain tangible economic benefit and social benefit, increasing papermaking enterprise is recognized and is used among the AKD/superiority and the necessity of alkaline sizing agent.China's paper making raw material is main with straw pulp, timber resource shortage, and the secondary stock consumption increases, in the utilization/the alkaline bleach liquor sizing technology has realistic meaning.Follow among the AKD/the alkaline bleach liquor sizing technology progressively enlarges in China's Application Areas; Technology is increasingly mature; In/benefit of alkaline paper-making progressively obtains embodying; Accelerated paper industry by acid papermaking in/trend that alkaline paper-making changes, in recent years AKD become domestic paper plant use at most, the most ripe, the most effectively in/alkaline sizing agent.
Among the AKD/alkaline bleach liquor sizing gives paper some excellent properties, and its weak point is also arranged simultaneously.Tradition AKD emulsion adopts the emulsifying agent of cassava cationic starch as AKD, and tapioca purity is high, and gelatinization point is low, sticks with paste the liquid good fluidity, a little less than transparency height, the retrogradation property, is difficult for layering.But its price is higher, and the AKD emulsion price that makes thus is higher, and the market competitiveness is poor.The research that improves in recent years and improve the AKD emulsion property is active day by day, improves the market competitiveness of AKD, among exploitation and production performance excellence, the low-cost AKD/and alkaline bleach liquor sizing is that China's papermaking researcher is made great efforts the problem studied always.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art; The object of the present invention is to provide among a kind of cationic red sweet potato starch AKD/preparation method of alkaline sizing agent; In the gained/alkaline sizing agent has good stability, can improve the degree of sizing and the surface strength of paper, and reduce the applying glue cost.
For achieving the above object, the technical scheme that the present invention adopts is:
Among a kind of cationic red sweet potato starch AKD/and the preparation method of alkaline sizing agent, may further comprise the steps:
The first step added in first reactor 50-55 ℃ the time reaction 1.0-2.0 hour with water, starch from sweet potato and fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add NaOH then, be warmed up to 60-70 ℃ and add 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride, be warming up to 90-95 ℃ of reaction 1-2 hour again; Be cooled to 50-55 ℃ and add acetic acid; Reduce to 20-30 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, the regulation system solid content promptly gets cationic red sweet potato starch emulsifying agent to 20-25%,
The 3rd step added cationic red sweet potato starch emulsifying agent, paraffin and AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature is to 70-75 ℃; After treating paraffin and AKD fusion, stirred 30-40 minute, the hot water that under agitation adds 75-80 ℃ disperses to be adjusted to solid content to 15-20%; Make cationic red sweet potato starch AKD meta emulsion; The meta emulsion behind the 20-30MPa homogeneous, is cooled to 25-30 ℃, obtains solid content and be among the stable cationic red sweet potato starch AKD of 15-20%/alkaline sizing agent; Described paraffin is semi-refined paraffin wax or fully refined paraffin wax, or both are with the mixture of arbitrary proportion.
With among this cationic red sweet potato starch AKD/alkaline sizing agent is used for the 110 gram/rice of manufacturing paper with pulp with 100% domestic waste paper
2In the fluting medium, starch consumption 65-70 kg/ton paper, among the cationic red sweet potato starch AKD/and alkaline sizing agent 2.5-3.0 kg/ton paper, the Cobb value of fluting medium is 35-40 gram/rice behind the Cypres
2, ring crush index is a 8.0-8.5 ox rice
2/ gram, fracture length is the 4.5-5.0 km, reaches A level high-strength corrugated base paper QUALITY STANDARD, with among the cationic red sweet potato starch AKD/the alkaline sizing agent applying glue after, it is first that the applying glue cost of fluting medium per ton has reduced 4-9.
The present invention prepares and does not use the micromolecule surfactant in the process, helps the raising of environmental protection and effect.Earlier with starch from sweet potato degraded carrying out then cationization, it is applied to the emulsification of paraffin and AKD as emulsifying agent, in the preparation/the alkaline sizing agent emulsion viscosity is little, good stability.The emulsion particle band positive electricity of preparation helps to keep and can combine closely with electronegative paper fibre, not only improves emulsion-stabilizing performance and sizability, and has reduced the applying glue cost.
The specific embodiment
To be described in further detail the present invention with specific embodiment below.
Embodiment one
Among a kind of cationic red sweet potato starch AKD/and the preparation method of alkaline sizing agent, may further comprise the steps:
The first step added in first reactor 50 ℃ the time reaction 1.0 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 60 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 90 ℃ of reactions 2 hours again; Be cooled to 50 ℃ and add 5 gram acetic acid; Reduce to 20 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 20% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 70 ℃, treat paraffin and AKD fusion after, stirred 40 minutes; The hot water that under agitation adds 75 ℃ disperses to be adjusted to solid content to 15%; Make cationic red sweet potato starch AKD meta emulsion, the meta emulsion behind the 20MPa homogeneous, is cooled to 25 ℃; Obtain solid content and be among 15% the stable cationic red sweet potato starch AKD/alkaline sizing agent, described paraffin is semi-refined paraffin wax.
With among this cationic red sweet potato starch AKD/alkaline sizing agent is used for the 110 gram/rice of manufacturing paper with pulp with 100% domestic waste paper
2In the fluting medium, starch consumption 65 kg/ton paper, among the cationic red sweet potato starch AKD/and alkaline sizing agent 2.5 kg/ton paper, the Cobb value of fluting medium is 40 gram/rice behind the Cypres
2, ring crush index is 8.0 Ns of rice
2/ gram, fracture length is 4.5 kms, reaches A level high-strength corrugated base paper QUALITY STANDARD, with among the cationic red sweet potato starch AKD/the alkaline sizing agent applying glue after, the applying glue cost of fluting medium per ton has reduced by 9 yuan.
Embodiment two
Among a kind of cationic red sweet potato starch AKD/and the preparation method of alkaline sizing agent, may further comprise the steps:
The first step added in first reactor 51 ℃ the time reaction 1.2 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 62 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 91 ℃ of reactions 1.8 hours again; Be cooled to 51 ℃ and add 5 gram acetic acid; Reduce to 22 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 21% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 71 ℃, treat paraffin and AKD fusion after, stirred 38 minutes; The hot water that under agitation adds 76 ℃ disperses to be adjusted to solid content to 16%; Make cationic red sweet potato starch AKD meta emulsion, the meta emulsion behind the 22MPa homogeneous, is cooled to 26 ℃; Obtain solid content and be among 16% the stable cationic red sweet potato starch AKD/alkaline sizing agent, described paraffin is fully refined paraffin wax.
With among this cationic red sweet potato starch AKD/alkaline sizing agent is used for the 110 gram/rice of manufacturing paper with pulp with 100% domestic waste paper
2In the fluting medium, starch consumption 66 kg/ton paper, among the cationic red sweet potato starch AKD/and alkaline sizing agent 2.6 kg/ton paper, the Cobb value of fluting medium is 39 gram/rice behind the Cypres
2, ring crush index is 8.1 Ns of rice
2/ gram, fracture length is 4.6 kms, reaches A level high-strength corrugated base paper QUALITY STANDARD, with among the cationic red sweet potato starch AKD/the alkaline sizing agent applying glue after, the applying glue cost of fluting medium per ton has reduced by 8 yuan.
Embodiment three
Among a kind of cationic red sweet potato starch AKD/and the preparation method of alkaline sizing agent, may further comprise the steps:
The first step added in first reactor 52 ℃ the time reaction 1.4 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 64 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 92 ℃ of reactions 1.6 hours again; Be cooled to 52 ℃ and add 5 gram acetic acid; Reduce to 24 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 22% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 72 ℃, treat paraffin and AKD fusion after, stirred 36 minutes; The hot water that under agitation adds 77 ℃ disperses to be adjusted to solid content to 17%; Make cationic red sweet potato starch AKD meta emulsion, the meta emulsion behind the 24MPa homogeneous, is cooled to 27 ℃; Obtain solid content and be among 17% the stable cationic red sweet potato starch AKD/alkaline sizing agent, described paraffin is semi-refined paraffin wax.
With among this cationic red sweet potato starch AKD/alkaline sizing agent is used for the 110 gram/rice of manufacturing paper with pulp with 100% domestic waste paper
2In the fluting medium, starch consumption 67 kg/ton paper, among the cationic red sweet potato starch AKD/and alkaline sizing agent 2.7 kg/ton paper, the Cobb value of fluting medium is 38 gram/rice behind the Cypres
2, ring crush index is 8.2 Ns of rice
2/ gram, fracture length is 4.7 kms, reaches A level high-strength corrugated base paper QUALITY STANDARD, with among the cationic red sweet potato starch AKD/the alkaline sizing agent applying glue after, the applying glue cost of fluting medium per ton has reduced by 7 yuan.
Embodiment four
Among a kind of cationic red sweet potato starch AKD/and the preparation method of alkaline sizing agent, may further comprise the steps:
The first step added in first reactor 53 ℃ the time reaction 1.6 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 66 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 93 ℃ of reactions 1.4 hours again; Be cooled to 53 ℃ and add 5 gram acetic acid; Reduce to 26 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 23% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 73 ℃, treat paraffin and AKD fusion after, stirred 34 minutes; The hot water that under agitation adds 78 ℃ disperses to be adjusted to solid content to 18%; Make cationic red sweet potato starch AKD meta emulsion, the meta emulsion behind the 26MPa homogeneous, is cooled to 28 ℃; Obtain solid content and be among 18% the stable cationic red sweet potato starch AKD/alkaline sizing agent, described paraffin is fully refined paraffin wax.
With among this cationic red sweet potato starch AKD/alkaline sizing agent is used for the 110 gram/rice of manufacturing paper with pulp with 100% domestic waste paper
2In the fluting medium, starch consumption 68 kg/ton paper, among the cationic red sweet potato starch AKD/and alkaline sizing agent 2.8 kg/ton paper, the Cobb value of fluting medium is 37 gram/rice behind the Cypres
2, ring crush index is 8.3 Ns of rice
2/ gram, fracture length is 4.8 kms, reaches A level high-strength corrugated base paper QUALITY STANDARD, with among the cationic red sweet potato starch AKD/the alkaline sizing agent applying glue after, the applying glue cost of fluting medium per ton has reduced by 6 yuan.
Embodiment five
Among a kind of cationic red sweet potato starch AKD/and the preparation method of alkaline sizing agent, may further comprise the steps:
The first step added in first reactor 54 ℃ the time reaction 1.8 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 68 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 94 ℃ of reactions 1.2 hours again; Be cooled to 54 ℃ and add 5 gram acetic acid; Reduce to 28 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 24% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 74 ℃; After treating paraffin and AKD fusion, stirred 32 minutes, the hot water that under agitation adds 79 ℃ disperses to be adjusted to solid content to 19%; Make cationic red sweet potato starch AKD meta emulsion; The meta emulsion behind the 28MPa homogeneous, is cooled to 29 ℃, obtains solid content and be among 19% the stable cationic red sweet potato starch AKD/alkaline sizing agent; Described paraffin is semi-refined paraffin wax and fully refined paraffin wax mixture, and both mass ratioes are 3: 1.
With among this cationic red sweet potato starch AKD/alkaline sizing agent is used for the 110 gram/rice of manufacturing paper with pulp with 100% domestic waste paper
2In the fluting medium, starch consumption 69 kg/ton paper, among the cationic red sweet potato starch AKD/and alkaline sizing agent 2.9 kg/ton paper, the Cobb value of fluting medium is 36 gram/rice behind the Cypres
2, ring crush index is 8.4 Ns of rice
2/ gram, fracture length is 4.9 kms, reaches A level high-strength corrugated base paper QUALITY STANDARD, with among the cationic red sweet potato starch AKD/the alkaline sizing agent applying glue after, the applying glue cost of fluting medium per ton has reduced by 5 yuan.
Embodiment six
Among a kind of cationic red sweet potato starch AKD/and the preparation method of alkaline sizing agent, may further comprise the steps:
The first step added in first reactor 55 ℃ the time reaction 2.0 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 70 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 95 ℃ of reactions 1 hour again; Be cooled to 55 ℃ and add 5 gram acetic acid; Reduce to 30 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 25% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 75 ℃; After treating paraffin and AKD fusion, stirred 30 minutes, the hot water that under agitation adds 80 ℃ disperses to be adjusted to solid content to 20%; Make cationic red sweet potato starch AKD meta emulsion; The meta emulsion behind the 30MPa homogeneous, is cooled to 30 ℃, obtains solid content and be among 20% the stable cationic red sweet potato starch AKD/alkaline sizing agent; Described paraffin is semi-refined paraffin wax and fully refined paraffin wax mixture, and both mass ratioes are 2: 3.
With among this cationic red sweet potato starch AKD/alkaline sizing agent is used for the 110 gram/rice of manufacturing paper with pulp with 100% domestic waste paper
2In the fluting medium, starch consumption 70 kg/ton paper, among the cationic red sweet potato starch AKD/and alkaline sizing agent 3.0 kg/ton paper, the Cobb value of fluting medium is 35 gram/rice behind the Cypres
2, ring crush index is 8.5 Ns of rice
2/ gram, fracture length is 5.0 kms, reaches A level high-strength corrugated base paper QUALITY STANDARD, with among the cationic red sweet potato starch AKD/the alkaline sizing agent applying glue after, the applying glue cost of fluting medium per ton has reduced by 4 yuan.
In sum, the present invention carries out cationization after adopting the starch from sweet potato degraded, and it is applied to the emulsification of AKD and paraffin as emulsifying agent; Among the AKD of preparation/the alkaline sizing agent emulsion viscosity is little; Good stability, the emulsion particle band positive electricity of preparation helps to keep and can combine closely with electronegative paper fibre; Not only improve emulsion-stabilizing performance and sizability, and reduced the applying glue cost.
Claims (7)
1. among the cationic red sweet potato starch AKD/and the preparation method of alkaline sizing agent, it is characterized in that, may further comprise the steps:
The first step added in first reactor 50-55 ℃ the time reaction 1.0-2.0 hour with water, starch from sweet potato and fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add NaOH then, be warmed up to 60-70 ℃ and add 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride, be warming up to 90-95 ℃ of reaction 1-2 hour again; Be cooled to 50-55 ℃ and add acetic acid; Reduce to 20-30 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, the regulation system solid content promptly gets cationic red sweet potato starch emulsifying agent to 20-25%,
The 3rd step added cationic red sweet potato starch emulsifying agent, paraffin and AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature is to 70-75 ℃; After treating paraffin and AKD fusion, stirred 30-40 minute, the hot water that under agitation adds 75-80 ℃ disperses to be adjusted to solid content to 15-20%; Make cationic red sweet potato starch AKD meta emulsion; The meta emulsion behind the 20-30MPa homogeneous, is cooled to 25-30 ℃, obtains solid content and be among the stable cationic red sweet potato starch AKD of 15-20%/alkaline sizing agent; Described paraffin is semi-refined paraffin wax or fully refined paraffin wax, or both are with the mixture of arbitrary proportion.
2. among a kind of cationic red sweet potato starch AKD according to claim 1/and the preparation method of alkaline sizing agent, it is characterized in that, may further comprise the steps:
The first step added in first reactor 50 ℃ the time reaction 1.0 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 60 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 90 ℃ of reactions 2 hours again; Be cooled to 50 ℃ and add 5 gram acetic acid; Reduce to 20 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 20% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 70 ℃, treat paraffin and AKD fusion after, stirred 40 minutes; The hot water that under agitation adds 75 ℃ disperses to be adjusted to solid content to 15%; Make cationic red sweet potato starch AKD meta emulsion, the meta emulsion behind the 20MPa homogeneous, is cooled to 25 ℃; Obtain solid content and be among 15% the stable cationic red sweet potato starch AKD/alkaline sizing agent, described paraffin is semi-refined paraffin wax.
3. among a kind of cationic red sweet potato starch AKD according to claim 1/and the preparation method of alkaline sizing agent, it is characterized in that, may further comprise the steps:
The first step added in first reactor 51 ℃ the time reaction 1.2 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 62 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 91 ℃ of reactions 1.8 hours again; Be cooled to 51 ℃ and add 5 gram acetic acid; Reduce to 22 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 21% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 71 ℃, treat paraffin and AKD fusion after, stirred 38 minutes; The hot water that under agitation adds 76 ℃ disperses to be adjusted to solid content to 16%; Make cationic red sweet potato starch AKD meta emulsion, the meta emulsion behind the 22MPa homogeneous, is cooled to 26 ℃; Obtain solid content and be among 16% the stable cationic red sweet potato starch AKD/alkaline sizing agent, described paraffin is fully refined paraffin wax.
4. among a kind of cationic red sweet potato starch AKD according to claim 1/and the preparation method of alkaline sizing agent, it is characterized in that, may further comprise the steps:
The first step added in first reactor 52 ℃ the time reaction 1.4 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 64 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 92 ℃ of reactions 1.6 hours again; Be cooled to 52 ℃ and add 5 gram acetic acid; Reduce to 24 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 22% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 72 ℃, treat paraffin and AKD fusion after, stirred 36 minutes; The hot water that under agitation adds 77 ℃ disperses to be adjusted to solid content to 17%; Make cationic red sweet potato starch AKD meta emulsion, the meta emulsion behind the 24MPa homogeneous, is cooled to 27 ℃; Obtain solid content and be among 17% the stable cationic red sweet potato starch AKD/alkaline sizing agent, described paraffin is semi-refined paraffin wax.
5. among a kind of cationic red sweet potato starch AKD according to claim 1/and the preparation method of alkaline sizing agent, it is characterized in that, may further comprise the steps:
The first step added in first reactor 53 ℃ the time reaction 1.6 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 66 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 93 ℃ of reactions 1.4 hours again; Be cooled to 53 ℃ and add 5 gram acetic acid; Reduce to 26 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 23% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 73 ℃, treat paraffin and AKD fusion after, stirred 34 minutes; The hot water that under agitation adds 78 ℃ disperses to be adjusted to solid content to 18%; Make cationic red sweet potato starch AKD meta emulsion, the meta emulsion behind the 26MPa homogeneous, is cooled to 28 ℃; Obtain solid content and be among 18% the stable cationic red sweet potato starch AKD/alkaline sizing agent, described paraffin is fully refined paraffin wax.
6. among a kind of cationic red sweet potato starch AKD according to claim 1/and the preparation method of alkaline sizing agent, it is characterized in that, may further comprise the steps:
The first step added in first reactor 54 ℃ the time reaction 1.8 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 68 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 94 ℃ of reactions 1.2 hours again; Be cooled to 54 ℃ and add 5 gram acetic acid; Reduce to 28 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 24% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 74 ℃; After treating paraffin and AKD fusion, stirred 32 minutes, the hot water that under agitation adds 79 ℃ disperses to be adjusted to solid content to 19%; Make cationic red sweet potato starch AKD meta emulsion; The meta emulsion behind the 28MPa homogeneous, is cooled to 29 ℃, obtains solid content and be among 19% the stable cationic red sweet potato starch AKD/alkaline sizing agent; Described paraffin is semi-refined paraffin wax and fully refined paraffin wax mixture, and both mass ratioes are 3: 1.
7. among a kind of cationic red sweet potato starch AKD according to claim 1/and the preparation method of alkaline sizing agent, it is characterized in that, may further comprise the steps:
The first step added in first reactor 55 ℃ the time reaction 2.0 hours with 200 gram water, 100 gram starch from sweet potato and 0.6 gram fungal alpha-amylase, obtained the starch from sweet potato of degrading; The mass ratio of water, starch from sweet potato and fungal alpha-amylase is 200: 100: 0.6; In first reactor, add 7 gram NaOH then, be warmed up to 70 ℃ and add 49 gram 3-chloro-2-hydroxypropyl-trimethyl ammonium chlorides, be warming up to 95 ℃ of reactions 1 hour again; Be cooled to 55 ℃ and add 5 gram acetic acid; Reduce to 30 ℃ again, the mass ratio of starch from sweet potato, NaOH, 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride and acetic acid is 100: 7: 49: 5
Second step added water in first reactor, regulation system solid content to 25% promptly gets cationic red sweet potato starch emulsifying agent,
The 3rd step added 110 gram cationic red sweet potato starch emulsifying agents, 110 gram paraffin and 120 gram AKD in second reactor, wherein the mass ratio of cationic red sweet potato starch emulsifying agent, paraffin and AKD is 110: 110: 120; Elevated temperature to 75 ℃; After treating paraffin and AKD fusion, stirred 30 minutes, the hot water that under agitation adds 80 ℃ disperses to be adjusted to solid content to 20%; Make cationic red sweet potato starch AKD meta emulsion; The meta emulsion behind the 30MPa homogeneous, is cooled to 30 ℃, obtains solid content and be among 20% the stable cationic red sweet potato starch AKD/alkaline sizing agent; Described paraffin is semi-refined paraffin wax and fully refined paraffin wax mixture, and both mass ratioes are 2: 3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104452450A (en) * | 2014-11-06 | 2015-03-25 | 江苏理文造纸有限公司 | High-gluing rapid curing type AKD (alkyl ketene dimer) emulsion and papermaking process using same |
| CN114960281A (en) * | 2022-05-26 | 2022-08-30 | 安徽海逸生物科技有限公司 | Method for processing special high-stability internal sizing agent for corrugated case board paper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007086803A1 (en) * | 2006-01-25 | 2007-08-02 | Stora Enso Ab | Sizing composition, method for the production of sized paper or paperboard and sized paper or paperboard |
| CN101168940A (en) * | 2007-12-04 | 2008-04-30 | 天津科技大学 | Method for preparing paraffin/AKD composite neutral paper-making glue blending agent |
| CN102337707A (en) * | 2011-09-29 | 2012-02-01 | 浙江展航生物科技有限公司 | Preparation method of modified AKD (Alkyl Ketene Dimer) neutral sizing agent |
-
2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007086803A1 (en) * | 2006-01-25 | 2007-08-02 | Stora Enso Ab | Sizing composition, method for the production of sized paper or paperboard and sized paper or paperboard |
| CN101168940A (en) * | 2007-12-04 | 2008-04-30 | 天津科技大学 | Method for preparing paraffin/AKD composite neutral paper-making glue blending agent |
| CN102337707A (en) * | 2011-09-29 | 2012-02-01 | 浙江展航生物科技有限公司 | Preparation method of modified AKD (Alkyl Ketene Dimer) neutral sizing agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452450A (en) * | 2014-11-06 | 2015-03-25 | 江苏理文造纸有限公司 | High-gluing rapid curing type AKD (alkyl ketene dimer) emulsion and papermaking process using same |
| CN104452450B (en) * | 2014-11-06 | 2017-04-05 | 江苏理文造纸有限公司 | High applying glue rapid maturing type AKD emulsions and the paper technology using the emulsion |
| CN114960281A (en) * | 2022-05-26 | 2022-08-30 | 安徽海逸生物科技有限公司 | Method for processing special high-stability internal sizing agent for corrugated case board paper |
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