CN107366185A - A kind of preparation technology of high-quality AKD neutral-surface sizing agents - Google Patents
A kind of preparation technology of high-quality AKD neutral-surface sizing agents Download PDFInfo
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- CN107366185A CN107366185A CN201710559248.5A CN201710559248A CN107366185A CN 107366185 A CN107366185 A CN 107366185A CN 201710559248 A CN201710559248 A CN 201710559248A CN 107366185 A CN107366185 A CN 107366185A
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- mixture
- hot water
- akd
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- 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
- D21H21/16—Sizing or water-repelling agents
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- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
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Abstract
The invention discloses a kind of preparation technology of high-quality AKD neutral-surface sizing agents, comprise the following steps：First by diallyl dimethyl ammoniumchloride and AKD mixed melting by a certain percentage, be then slow added into hot water and cetyl trimethylammonium bromide composition, after the completion of at twice shear agitation handle, be during which continuously applied to ultrasonication, after the completion of cool down.The present invention has carried out rational adjustment improvement processing to the preparation technology of AKD sizing agents, and the finished product stability of gained is good, is not in lamination during transport, preservation, and holistic cost is relatively low, and using effect is good, and promotional value is high.
Description
Technical field
The invention belongs to pulp technology for making paper, and in particular to a kind of preparation technology of high-quality AKD neutral-surface sizing agents.
Background technology
AKD is as the most widely used neutral-to-alkaline sizing agents of current paper-making industry, and the exploitation and development of its emulsifying agent are
As study hotspot, traditional AKD emulsions are using cationic starch as emulsifying agent and stabilizer, but it exists and stayed on fiber
It is low, with fiber-reactive it is long compared with the slow and applying glue curing time the shortcomings of, poor-performing and gradually substituted.High molecular polymerization species
Emulsifying agent is one of category common in existing emulsifying agent, and its representation type is diallyl dimethyl ammoniumchloride, such breast
Agent can effectively lift AKD emulsion intercalation methods, when playing dual parts of sizing principle and accelerate the ripening, and can shorten curing
Between, limit AKD hydrolysis and migration aptitude.Although high molecular polymerization species emulsifying agent has that viscosity is big, cost of transportation is high etc. and lacked
Point, but its performance is relatively preferable, still with the good market competitiveness, but with the development of technology, different types of breast
Agent is continuously developed, and the producer of AKD sizing agents is produced with high molecular polymerization species emulsifying agent constantly processing technology must be entered
Row improves, and could be survived in keen competition.
The content of the invention
The purpose of the present invention is to be directed to the problem of existing, there is provided a kind of preparation of high-quality AKD neutral-surface sizing agents
Technique.
The present invention is achieved by the following technical solutions：
A kind of preparation technology of high-quality AKD neutral-surface sizing agents, comprises the following steps：
（1）First by diallyl dimethyl ammoniumchloride and AKD according to weight ratio 1.3 ~ 1.8：1 is mixed, and heating water bath melts
Melt, during which apply ultrasonication, it is standby that mixture A is obtained after the completion of melting；
（2）Hot water preheated in advance is added slowly to step（1）In the mixture A of gained, when the addition quality of hot water
When being 3 ~ 4 times of mixture A, cetyl trimethylammonium bromide composition is now initially added into, while is slowly added with hot water,
Total addition of final hot water is 8 ~ 9 times of mixture A gross masses, and the addition of cetyl trimethylammonium bromide is mixture
The 20 ~ 25% of A gross masses, after the completion of mixture B it is standby；By cetyl trimethylammonium bromide composition in polydiene propyl group two
Added after ammonio methacrylate, can prevent it from being combined the interference wrapped with AKD for diallyl dimethyl ammoniumchloride, simultaneously
The stability and performance of the overall structure of and can lifting；
（3）First with 1800 ~ 2200 revs/min of rotating speed to step（2）The mixture B of gained carries out shear agitation and handles 1 ~ 3min,
Then rotating speed is risen to 6000 ~ 7000 revs/min, continues to carry out it shear agitation 10 ~ 15min of processing, during which always to mixing
Thing B carry out ultrasonication, after the completion of take out be cooled to room temperature.
Preferably, comprise the following steps：
（1）First by diallyl dimethyl ammoniumchloride and AKD according to weight ratio 1.5：1 is mixed, heating water bath melting, the phase
Between apply ultrasonication, after the completion of melting mixture A it is standby；
（2）Hot water preheated in advance is added slowly to step（1）In the mixture A of gained, when the addition quality of hot water
When being 3.5 times of mixture A, cetyl trimethylammonium bromide composition is now initially added into, while is slowly added with hot water,
Total addition of final hot water is 8.5 times of mixture A gross masses, and the addition of cetyl trimethylammonium bromide is mixture
The 23% of A gross masses, after the completion of mixture B it is standby；
（3）First with 2000 revs/min of rotating speed to step（2）The mixture B of gained carries out shear agitation processing 2min, then will turn
Speed rises to 6500 revs/min, continues to carry out it shear agitation processing 12min, during which mixture B is carried out at ultrasonic wave always
Reason, after the completion of take out be cooled to room temperature.
Further, step（1）Described in the temperature of water-bath be 68 ~ 73 DEG C, the frequency of ultrasonic wave during ultrasonication
For 42 ~ 45kHz.
Further, step（2）Described in hot water temperature be 68 ~ 73 DEG C.
Further, step（3）Described in ultrasonication when ultrasonic wave frequency be 66 ~ 70kHz.
It is existing to be prepared with high molecular polymerization species emulsifying agent in the technique of AKD sizing agents, the species of usual emulsifying agent compared with
To be single, the problem of holistic cost is higher is also resulted in, while its viscosity is larger, the emulsion grain in the finished product sizing agent of preparation
Spend it is larger, although can be improved by lifting the rotating speed of shear agitation, after reaching certain rotating speed, even if lifting rotating speed emulsion again
Granularity will not also reduce, cause technical bottleneck, and the less advantage of Emulsion particle size is：Later stage applying glue AKD easily with it is wooden
Fiber is combined, and improves colloidal film extended capability, enhances the action effect of sizing agent.To whole prepared by work to this present invention
Skill has carried out targetedly improvement processing, wherein in the selection of composition, based on diallyl dimethyl ammoniumchloride, again
Cooperation with the addition of cetyl trimethylammonium bromide composition, in the preparation first enter diallyl dimethyl ammoniumchloride and AKD
Row mixed melting, is then mixed with hot water, now using diallyl dimethyl ammoniumchloride and AKD high associativity, is formed
A kind of diallyl dimethyl ammoniumchloride wraps AKD initial latex particle, and this structure is emulsion in conventional method
State, but preheating or it is long-term place when there is AKD from wrapping the phenomenon escaped in layer, that is, lamination problem can occur,
To with the addition of cetyl trimethylammonium bromide composition again in this subsequent step, diallyl dimethyl ammoniumchloride is AKD's
What top layer was formed be it is a kind of it is finer and close it is three-dimensional netted wrap structure, but it still suffers from space, if this not close space combined
Also can be correspondingly bigger, the intercalation that space is now carried out using cetyl trimethylammonium bromide is filled up, and forms a kind of crosslinking, two
Layer such as wraps at the emulsion particle of composite construction state, reduces the lamination of finished product sizing agent significantly, improves retention,
And ultrasonication has also been carried out in preparation process, it can further reduce the granularity of emulsion particle, lift overall use
Quality.
The present invention has advantages below compared with prior art：
The present invention has carried out rational adjustment improvement processing to the preparation technology of AKD sizing agents, and the finished product stability of gained is good, fortune
Be not in lamination during defeated, preservation, holistic cost is relatively low, and using effect is good, and promotional value is high.
Embodiment
Embodiment 1
A kind of preparation technology of high-quality AKD neutral-surface sizing agents, comprises the following steps：
（1）First by diallyl dimethyl ammoniumchloride and AKD according to weight ratio 1.3：1 is mixed, heating water bath melting, the phase
Between apply ultrasonication, after the completion of melting mixture A it is standby；
（2）Hot water preheated in advance is added slowly to step（1）In the mixture A of gained, when the addition quality of hot water
When being 3 times of mixture A, cetyl trimethylammonium bromide composition is now initially added into, while is slowly added with hot water, most
Total addition of whole hot water is 8 times of mixture A gross masses, and the addition of cetyl trimethylammonium bromide is that mixture A is total
The 20% of quality, after the completion of mixture B it is standby；
（3）First with 1800 revs/min of rotating speed to step（2）The mixture B of gained carries out shear agitation processing 1min, then will turn
Speed rises to 6000 revs/min, continues to carry out it shear agitation processing 10min, during which mixture B is carried out at ultrasonic wave always
Reason, after the completion of take out be cooled to room temperature.
Further, step（1）Described in the temperature of water-bath be 68 DEG C, the frequency of ultrasonic wave is during ultrasonication
42kHz。
Further, step（2）Described in hot water temperature be 68 DEG C.
Further, step（3）Described in ultrasonication when ultrasonic wave frequency be 66kHz.
Embodiment 2
A kind of preparation technology of high-quality AKD neutral-surface sizing agents, comprises the following steps：
（1）First by diallyl dimethyl ammoniumchloride and AKD according to weight ratio 1.5：1 is mixed, heating water bath melting, the phase
Between apply ultrasonication, after the completion of melting mixture A it is standby；
（2）Hot water preheated in advance is added slowly to step（1）In the mixture A of gained, when the addition quality of hot water
When being 3.5 times of mixture A, cetyl trimethylammonium bromide composition is now initially added into, while is slowly added with hot water,
Total addition of final hot water is 8.5 times of mixture A gross masses, and the addition of cetyl trimethylammonium bromide is mixture
The 23% of A gross masses, after the completion of mixture B it is standby；
（3）First with 2000 revs/min of rotating speed to step（2）The mixture B of gained carries out shear agitation processing 2min, then will turn
Speed rises to 6500 revs/min, continues to carry out it shear agitation processing 12min, during which mixture B is carried out at ultrasonic wave always
Reason, after the completion of take out be cooled to room temperature.
Further, step（1）Described in the temperature of water-bath be 70 DEG C, the frequency of ultrasonic wave is during ultrasonication
44kHz。
Further, step（2）Described in hot water temperature be 70 DEG C.
Further, step（3）Described in ultrasonication when ultrasonic wave frequency be 68kHz.
Embodiment 3
A kind of preparation technology of high-quality AKD neutral-surface sizing agents, comprises the following steps：
（1）First by diallyl dimethyl ammoniumchloride and AKD according to weight ratio 1.8：1 is mixed, heating water bath melting, the phase
Between apply ultrasonication, after the completion of melting mixture A it is standby；
（2）Hot water preheated in advance is added slowly to step（1）In the mixture A of gained, when the addition quality of hot water
When being 4 times of mixture A, cetyl trimethylammonium bromide composition is now initially added into, while is slowly added with hot water, most
Total addition of whole hot water is 9 times of mixture A gross masses, and the addition of cetyl trimethylammonium bromide is that mixture A is total
The 25% of quality, after the completion of mixture B it is standby；
（3）First with 2200 revs/min of rotating speed to step（2）The mixture B of gained carries out shear agitation processing 3min, then will turn
Speed rises to 7000 revs/min, continues to carry out it shear agitation processing 15min, during which mixture B is carried out at ultrasonic wave always
Reason, after the completion of take out be cooled to room temperature.
Further, step（1）Described in the temperature of water-bath be 73 DEG C, the frequency of ultrasonic wave is during ultrasonication
45kHz。
Further, step（2）Described in hot water temperature be 73 DEG C.
Further, step（3）Described in ultrasonication when ultrasonic wave frequency be 70kHz.
Comparative example 1
This comparative example 1 compared with Example 2, is not added using cetyl trimethylammonium bromide in whole preparation process
Composition, method and step all same in addition.
Comparative example 2
This comparative example 2 compared with Example 2, without ultrasonication, method in addition in whole preparation process
Step all same.
Comparative example 3
This comparative example 3 compared with Example 2, by step（2）The operation of middle addition cetyl trimethylammonium bromide composition
It is moved into step（1）In, i.e., diallyl dimethyl ammoniumchloride, cetyl trimethylammonium bromide and AKD are directly carried out
Heating melting, method and step all same in addition.
Comparative example 4
This comparative example 4 compared with Example 2, is not added using cetyl trimethylammonium bromide in whole preparation process
Composition, while also without ultrasonication, method and step all same in addition.
In order to contrast effect of the present invention, to above-described embodiment 2, comparative example 1, comparative example 2, comparative example 3,
Sizing agent made from the method for comparative example 4 is corresponding carries out performance detection, and specific correction data is as shown in table 1 below：
Table 1
| Emulsion particle size（nm） | Cobb values（g/m2） | Preserve duration（Month） | |
| Embodiment 2 | 748 | 16.4 | 7 |
| Comparative example 1 | 760 | 23.0 | 4 |
| Comparative example 2 | 977 | 21.3 | 4 |
| Comparative example 3 | 858 | 19.5 | 5 |
| Comparative example 4 | 995 | 25.6 | 3 |
Note：Emulsion particle size described in upper table 1 be emulsion is diluted to 0.01% concentration, then with Zetasizer Nano
ZS90 type nano-particle size analysis instrument carries out the particle diameter test of emulsion；Described Cobb values are that each group is correspondingly coated with into sizing agent
Paper samples are put into 105 DEG C of drying boxes after drying 10min, then suddenly absorbability analyzer can be determined with YT-Cobb125 types；Institute
The preservation duration stated is to be placed in stand under normal temperature condition after finished product sizing agent sealed cans are packed to deposit not stratified preservation duration.
Preparation method of the present invention can effectively lift the use product of AKD neutral-surface sizing agents it can be seen from upper table 1
Matter, good combination property, promotional value are high.
Claims (5)
1. a kind of preparation technology of high-quality AKD neutral-surface sizing agents, it is characterised in that comprise the following steps：
（1）First by diallyl dimethyl ammoniumchloride and AKD according to weight ratio 1.3 ~ 1.8：1 is mixed, and heating water bath melts
Melt, during which apply ultrasonication, it is standby that mixture A is obtained after the completion of melting；
（2）Hot water preheated in advance is added slowly to step（1）In the mixture A of gained, when the addition quality of hot water
When being 3 ~ 4 times of mixture A, cetyl trimethylammonium bromide composition is now initially added into, while is slowly added with hot water,
Total addition of final hot water is 8 ~ 9 times of mixture A gross masses, and the addition of cetyl trimethylammonium bromide is mixture
The 20 ~ 25% of A gross masses, after the completion of mixture B it is standby；
（3）First with 1800 ~ 2200 revs/min of rotating speed to step（2）The mixture B of gained carries out shear agitation and handles 1 ~ 3min,
Then rotating speed is risen to 6000 ~ 7000 revs/min, continues to carry out it shear agitation 10 ~ 15min of processing, during which always to mixing
Thing B carry out ultrasonication, after the completion of take out be cooled to room temperature.
A kind of 2. preparation technology of high-quality AKD neutral-surface sizing agents according to claim 1, it is characterised in that bag
Include following steps：
（1）First by diallyl dimethyl ammoniumchloride and AKD according to weight ratio 1.5：1 is mixed, heating water bath melting, the phase
Between apply ultrasonication, after the completion of melting mixture A it is standby；
（2）Hot water preheated in advance is added slowly to step（1）In the mixture A of gained, when the addition quality of hot water
When being 3.5 times of mixture A, cetyl trimethylammonium bromide composition is now initially added into, while is slowly added with hot water,
Total addition of final hot water is 8.5 times of mixture A gross masses, and the addition of cetyl trimethylammonium bromide is mixture
The 23% of A gross masses, after the completion of mixture B it is standby；
（3）First with 2000 revs/min of rotating speed to step（2）The mixture B of gained carries out shear agitation processing 2min, then will turn
Speed rises to 6500 revs/min, continues to carry out it shear agitation processing 12min, during which mixture B is carried out at ultrasonic wave always
Reason, after the completion of take out be cooled to room temperature.
A kind of 3. preparation technology of high-quality AKD neutral-surface sizing agents according to claim 1 or 2, it is characterised in that
Step（1）Described in the temperature of water-bath be 68 ~ 73 DEG C, the frequency of ultrasonic wave is 42 ~ 45kHz during ultrasonication.
A kind of 4. preparation technology of high-quality AKD neutral-surface sizing agents according to claim 1 or 2, it is characterised in that
Step（2）Described in hot water temperature be 68 ~ 73 DEG C.
A kind of 5. preparation technology of high-quality AKD neutral-surface sizing agents according to claim 1 or 2, it is characterised in that
Step（3）Described in ultrasonication when ultrasonic wave frequency be 66 ~ 70kHz.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593450A (en) * | 2020-12-03 | 2021-04-02 | 北流市裕瑞造纸助剂有限公司 | AKD sizing agent and preparation method and application thereof |
| CN115748293A (en) * | 2022-11-17 | 2023-03-07 | 上海东升新材料有限公司 | AKD surface sizing agent and preparation method thereof |
| CN116463883A (en) * | 2023-03-15 | 2023-07-21 | 广西瑞鑫新型材料有限公司 | AKD neutral sizing agent |
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| CN101942780A (en) * | 2010-09-15 | 2011-01-12 | 山东轻工业学院 | Method for preparing AKD emulsion sizing agent |
| CN102704337A (en) * | 2012-03-09 | 2012-10-03 | 青岛科技大学 | High-charge-density polymer/AKD(alkyl ketene dimer) instant-curing neutral sizing agent preparation process |
| CA2666745C (en) * | 2006-08-24 | 2014-11-25 | Stora Enso Oyj | Method for controlling surface contact area of a paper or board substrate |
| CN105603818A (en) * | 2016-01-14 | 2016-05-25 | 青岛科技大学 | AKD neutral sizing agent prepared by cationic emulsifier and preparation method and application of AKD neutral sizing agent |
| CN206139116U (en) * | 2016-10-28 | 2017-05-03 | 河南华禹环保科技有限公司 | Papermaking sizing agent AKD emulsification device |
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2017
- 2017-07-11 CN CN201710559248.5A patent/CN107366185A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2666745C (en) * | 2006-08-24 | 2014-11-25 | Stora Enso Oyj | Method for controlling surface contact area of a paper or board substrate |
| CN101942780A (en) * | 2010-09-15 | 2011-01-12 | 山东轻工业学院 | Method for preparing AKD emulsion sizing agent |
| CN102704337A (en) * | 2012-03-09 | 2012-10-03 | 青岛科技大学 | High-charge-density polymer/AKD(alkyl ketene dimer) instant-curing neutral sizing agent preparation process |
| CN105603818A (en) * | 2016-01-14 | 2016-05-25 | 青岛科技大学 | AKD neutral sizing agent prepared by cationic emulsifier and preparation method and application of AKD neutral sizing agent |
| CN206139116U (en) * | 2016-10-28 | 2017-05-03 | 河南华禹环保科技有限公司 | Papermaking sizing agent AKD emulsification device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593450A (en) * | 2020-12-03 | 2021-04-02 | 北流市裕瑞造纸助剂有限公司 | AKD sizing agent and preparation method and application thereof |
| CN115748293A (en) * | 2022-11-17 | 2023-03-07 | 上海东升新材料有限公司 | AKD surface sizing agent and preparation method thereof |
| CN116463883A (en) * | 2023-03-15 | 2023-07-21 | 广西瑞鑫新型材料有限公司 | AKD neutral sizing agent |
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Application publication date: 20171121 |