CN105037605B - A kind of AOS AA bipolymer surfactants and its preparation method and application - Google Patents
A kind of AOS AA bipolymer surfactants and its preparation method and application Download PDFInfo
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Abstract
The invention provides a kind of AOS AA bipolymer surfactants and its preparation method and application, generated by monomer alhpa olefin sodium sulfonate and monomeric acrylic in the presence of initiator ammonium persulfate by polymerisation, wherein the mol ratio of alhpa olefin sodium sulfonate and acrylic acid is 1:(1 4), initiator amount is the 0.5~4.5% of monomer gross mass, and reaction medium is that the mass percent concentration of monomer alhpa olefin sodium sulfonate in water, reaction system is 10~15%.AOS AA bipolymers surfactants prepared by the present invention are compared with commercially available low molecule deinking agent, its molecular weight is larger, it is stronger to the scattered of ink, trapping and emulsifying capacity, it can be used alone or with carrying out deinking as deinking agent after low-molecular-weight surfactant compounding, the Paper White Degree regenerated is high, ink particle content is few, is particularly suitable for use in the floatation and ink removing of waste and old magazine paper, has a good application prospect.
Description
Technical field
The invention belongs to deinking technical field, it is related to a kind of surfactant available for deinking, especially relates to
And a kind of AOS-AA bipolymers surfactant and its preparation method and application.
Background technology
Nowadays, world environments constantly deteriorates, wood raw material supply wretched insufficiency.The area of woods Jin Zhan worlds of China are always gloomy
The 13% of woods area, and per capita rate is only the 15% of world's per capita share, but our use paper demand is but continuous
Increase, so, this is accomplished by our uses of the increasing to recycled writing paper.Deinking is the secondary important channel utilized of waste paper, its
Key technology is exactly the development and exploitation of deinking agent.
Though current domestic waste paper deinking agent is wide in variety, its intrinsic chemical product is substantially the same, mostly low molecular weight surfactant activity
Agent is single or compounding use.But, the development of synthetic resin causes the kind of ink to be continuously increased, and existing deinking agent is not
The demand in market can be met, so it is imperative to develop deinking agent that is new, efficient, having a wide range of application.
Copolymer surfactants are special due to its structure, the huge number that can be synthesized, and its scattered, emulsification, foam stabilizing etc.
Performance has strengthened than low-molecular-weight surfactant.But, the research about copolymer deinking agent is few at present.Copolymer takes off
Black agent can not only be used alone, can also be with low molecule deinking agent compounding use, and both can carry out performance complement, preferably carry
High deinking efficiency, so it has wide development and application prospect.
The content of the invention
It is an object of the invention to provide a kind of AOS-AA bipolymers surfactant and its preparation method and application,
This method is simple and easy to apply, and obtained AOS-AA bipolymers surfactant has good deinking efficiency.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of AOS-AA bipolymers surfactant, the AOS-AA bipolymers surfactant is by monomer α-alkene
Hydrocarbon sulfonate sodium (AOS) and monomeric acrylic (AA) are generated in the presence of initiator ammonium persulfate by polymerisation, and wherein α-
Alkene sulfonic acid sodium and the mol ratio of acrylic acid are 1:(1-4), initiator amount is the 0.5~4.5% of monomer gross mass, and reaction is situated between
Matter is that the mass percent concentration of monomer alpha-olefin sodium sulfonate in water, reaction system is 10~15%.
A kind of preparation method of AOS-AA bipolymer surfactants described in claim 1, is comprised the following steps that：
Monomer alpha-olefin sodium sulfonate, monomeric acrylic, initiator ammonium persulfate and water are added to 65~105 DEG C of constant temperature
In reaction vessel, 2~7h of insulation reaction, reaction stands after terminating, naturally cools to room temperature, then adjusts pH value to 8~9, i.e.,
Obtain AOS-AA bipolymer surfactants.
Described monomer alpha-olefin sodium sulfonate and monomeric acrylic are fed intake in two times, every time input half monomer α-
The monomeric acrylic of alkene sulfonic acid sodium and half, the interval time fed intake twice is 50~60min.
Described initiator ammonium persulfate takes the mode of dropwise addition to be fed intake, and monomer alpha-olefin sulfonic acid is put into when first time
Start that initiator is continuously added dropwise when sodium and monomeric acrylic, the dropwise addition used time of initiator is 80~90min, is dripped after initiator
Insulation reaction is carried out again.
Reaction system is stirred with 25~30r/min speed during initiator is added dropwise.
Reaction system is stirred with 50~60r/min speed during insulation reaction.
Described monomer alpha-olefin sodium sulfonate is going the removal of impurity using preceding first filtering, then adjusts its pH value to neutrality.
With mass fraction pH value is adjusted for 15~25% NaOH solution.
Application of the described AOS-AA bipolymers surfactant as deinking agent in deinking.
Application of the described AOS-AA bipolymer surfactants in deinking agent is prepared.
Relative to prior art, beneficial effects of the present invention are：
AOS-AA bipolymers surfactant prepared by the present invention is compared with commercially available low molecule deinking agent, its molecule
Chain is longer, and molecular weight is bigger, stronger to the scattered of ink, trapping, emulsification and washability, can not only enter separately as deinking agent
Row deinking, deinking efficiency is good, and the Paper White Degree regenerated is high, and residual ink is few, but also can be de- with commercially available low molecule
Black agent is compounded, and carries out the deinking agent of deinking to waste paper for preparing, by AOS-AA bipolymers surfactant and
The synergy of commercially available low molecule deinking agent so that the deinking agent of compounding has more preferably deinking efficiency, recycled paper whiteness
Height, residual ink is few, is particularly suitable for use in the floatation and ink removing of waste and old magazine paper, therefore the AOS-AA bipolymers that the present invention is provided
Surfactant has a good application prospect.
The preparation methods of the AOS-AA bipolymer surfactants that the present invention is provided is simple and easy to apply, raw material is easy to get, and makes
Standby cost is relatively low, and short preparation period, reaction temperature is low, and required consersion unit is simply common, it is easy to industrialized production.
Further, because the double bond of alpha-olefin sodium sulfonate is not on the position of end, it is more difficult to carry out polymerisation, and acrylic acid is non-
Chang Rongyi carries out autohemagglutination, therefore alpha-olefin sodium sulfonate and acrylic acid are fed intake in two times, and is added dropwise to what initiator continued instead
Answer in system, can so reduce the polymerization difficulty of alpha-olefin sodium sulfonate, reduce the autohemagglutination phenomenon of acrylic acid, improve target product
Yield.
Embodiment
The present invention will be described in further detail below.
The preparation method for the AOS-AA bipolymer surfactants that the present invention is provided, its reaction principle is as follows：
Obtained AOS-AA bipolymers surfactant is tested, the ratio of m, n in above-mentioned molecular formula is found
Example about 1:(1~4).
The preparation method of the AOS-AA bipolymer surfactants of the present invention is made into one with specific embodiment below
The detailed description of step.
Embodiment 1：
Reaction raw materials：Mol ratio is 1:1 monomer alpha-olefin sodium sulfonate and monomeric acrylic, the 3.0% of monomer gross mass
Initiator ammonium persulfate, surplus be deionized water (reaction medium), the matter of monomer alpha-olefin sodium sulfonate wherein in reaction system
It is 12% to measure percent concentration.
Step：Monomer alpha-olefin sodium sulfonate is first filtered to remove impurity, and adjusted with mass fraction for 20% NaOH solution
Save to neutrality, then using deionized water as reaction medium, by the monomer alpha-olefin sodium sulfonate (AOS) and one of deionized water, half
Half monomeric acrylic (AA) is put into 85 DEG C of there-necked flask, and the AOS and AA of remainder are added after 1h, and when for the first time
Begin to continue that slowly initiator ammonium persulfate is added dropwise in there-necked flask after AOS and AA is added into there-necked flask, time for adding
For 1.5h, reaction system is stirred with 25r/min speed during dropwise addition.Constant temperature continues to react 4h after completion of dropping,
Reaction system is stirred with 55r/min speed during insulation reaction, question response stands after terminating, naturally cools to room
The NaOH solution regulation pH that then temperature is 20% with mass fraction is 8.5, finally obtains the amber transparent liquid that solid content is about 20%
Body is AOS-AA bipolymer surfactants, is designated as deinking agent -1.
The major absorbance peak and its ownership in examination of infrared spectrum, its infrared spectrogram are carried out to obtained deinking agent -1
For：
3400cm-1Locate as the association absworption peak of-OH on the-OH on carboxyl and a small amount of hydrone, 2925cm-1And 2857cm-1
Place is respectively C-H antisymmetric stretching vibration peak and symmetrical stretching vibration peak, 1644cm-1Locate the stretching vibration peak for C=C,
1572cm-1And 1411cm-1Place is respectively carboxylate C=O stretching vibration peak and C-O stretching vibration peak, 1457cm-1Locate be
C-H in-plane bending stretching vibration peak, 1193cm-1And 1062cm-1Place is respectively sulfonic group S=O antisymmetric stretching vibration peak
And stretching vibration peak, in 1640cm-1The peak at place is not obvious, illustrates that polymerisation has occurred and that.Comprehensive analysis shows that this surface is lived
There are sulfonic group, carboxyl etc. in the molecular structure of property agent.
Gel permeation chromatography (GPC) analysis is carried out to obtained deinking agent -1, its molecular chain conformation is：
Mean molecule quantity Mn=3513, weight average molecular weight Mw=3900, viscosity average molecular weigh Mp=4518, Z-average molecular weight Mz=
4173, (Z+1)-average molecular weight Mz+1=4377, molecular weight of product coefficient of dispersion Mw/Mn=1.110006.
By above infrared spectrum and gel osmoticing chromatogram analysis it can be shown that synthetic product is expected product.
Embodiment 2：
Reaction raw materials：Mol ratio is 1:2 monomer alpha-olefin sodium sulfonate and monomeric acrylic, the 1.5% of monomer gross mass
Initiator ammonium persulfate, surplus be deionized water (reaction medium), the matter of monomer alpha-olefin sodium sulfonate wherein in reaction system
It is 12% to measure percent concentration.
Step：Monomer alpha-olefin sodium sulfonate is first filtered to remove impurity, and adjusted with mass fraction for 20% NaOH solution
Save to neutrality, then using deionized water as reaction medium, by the monomer alpha-olefin sodium sulfonate (AOS) and one of deionized water, half
Half monomeric acrylic (AA) is put into 85 DEG C of there-necked flask, and the AOS and AA of remainder are added after 1h, and when for the first time
Begin to continue that slowly initiator ammonium persulfate is added dropwise in there-necked flask after AOS and AA is added into there-necked flask, time for adding
For 1.5h, reaction system is stirred with 25r/min speed during dropwise addition.Constant temperature continues to react 4h after completion of dropping,
Reaction system is stirred with 55r/min speed during insulation reaction, question response stands after terminating, naturally cools to room
The NaOH solution regulation pH that then temperature is 20% with mass fraction is 8.5, finally obtains the amber transparent liquid that solid content is about 20%
Body is AOS-AA bipolymer surfactants, is designated as deinking agent -2.
Embodiment 3：
Reaction raw materials：Mol ratio is 1:2 monomer alpha-olefin sodium sulfonate and monomeric acrylic, the 3.0% of monomer gross mass
Initiator ammonium persulfate, surplus be deionized water (reaction medium), the matter of monomer alpha-olefin sodium sulfonate wherein in reaction system
It is 12% to measure percent concentration.
Step：Monomer alpha-olefin sodium sulfonate is first filtered to remove impurity, and adjusted with mass fraction for 20% NaOH solution
Save to neutrality, then using deionized water as reaction medium, by the monomer alpha-olefin sodium sulfonate (AOS) and one of deionized water, half
Half monomeric acrylic (AA) is put into 85 DEG C of there-necked flask, and the AOS and AA of remainder are added after 1h, and when for the first time
Begin to continue that slowly initiator ammonium persulfate is added dropwise in there-necked flask after AOS and AA is added into there-necked flask, time for adding
For 1.5h, reaction system is stirred with 25r/min speed during dropwise addition.Constant temperature continues to react 4h after completion of dropping,
Reaction system is stirred with 55r/min speed during insulation reaction, question response stands after terminating, naturally cools to room
The NaOH solution regulation pH that then temperature is 20% with mass fraction is 8.5, finally obtains the amber transparent liquid that solid content is about 20%
Body is AOS-AA bipolymer surfactants, is designated as deinking agent -3.
Embodiment 4
Reaction raw materials：Mol ratio is 1:3 monomer alpha-olefin sodium sulfonate and monomeric acrylic, the 1.0% of monomer gross mass
Initiator ammonium persulfate, surplus be deionized water (reaction medium), the matter of monomer alpha-olefin sodium sulfonate wherein in reaction system
It is 10% to measure percent concentration.
Step：Monomer alpha-olefin sodium sulfonate is first filtered to remove impurity, and adjusted with mass fraction for 20% NaOH solution
Save to neutrality, then using deionized water as reaction medium, by the monomer alpha-olefin sodium sulfonate (AOS) and one of deionized water, half
Half monomeric acrylic (AA) is put into 95 DEG C of there-necked flask, adds the AOS and AA of remainder after 50min, and when the
Begin to continue that slowly initiator ammonium persulfate is added dropwise in there-necked flask after AOS and AA once is added into there-necked flask, be added dropwise
Time is 80min, and reaction system is stirred with 26r/min speed during dropwise addition.Constant temperature continues anti-after completion of dropping
Answer and reaction system is stirred with 50r/min speed during 5h, insulation reaction, question response stands after terminating, naturally cold
But to room temperature, the NaOH solution for being then 20% with mass fraction regulation pH is 8, finally obtains the brown that solid content is about 20% saturating
Prescribed liquid is AOS-AA bipolymer surfactants.
Embodiment 5
Reaction raw materials：Mol ratio is 1:4 monomer alpha-olefin sodium sulfonate and monomeric acrylic, the 4.5% of monomer gross mass
Initiator ammonium persulfate, surplus be deionized water (reaction medium), the matter of monomer alpha-olefin sodium sulfonate wherein in reaction system
It is 11% to measure percent concentration.
Step：Monomer alpha-olefin sodium sulfonate is first filtered to remove impurity, and adjusted with mass fraction for 20% NaOH solution
Save to neutrality, then using deionized water as reaction medium, by the monomer alpha-olefin sodium sulfonate (AOS) and one of deionized water, half
Half monomeric acrylic (AA) is put into 105 DEG C of there-necked flask, adds the AOS and AA of remainder after 52min, and when the
Begin to continue that slowly initiator ammonium persulfate is added dropwise in there-necked flask after AOS and AA once is added into there-necked flask, be added dropwise
Time is 82min, and reaction system is stirred with 27r/min speed during dropwise addition.Constant temperature continues anti-after completion of dropping
Answer and reaction system is stirred with 60r/min speed during 3h, insulation reaction, question response stands after terminating, naturally cold
But to room temperature, the NaOH solution for being then 20% with mass fraction regulation pH is 9, finally obtains the brown that solid content is about 20% saturating
Prescribed liquid is AOS-AA bipolymer surfactants.
Embodiment 6
Reaction raw materials：Mol ratio is 1:1.5 monomer alpha-olefin sodium sulfonate and monomeric acrylic, monomer gross mass
0.4% initiator ammonium persulfate, surplus is deionized water (reaction medium), monomer alpha-olefin sodium sulfonate wherein in reaction system
Mass percent concentration be 13%.
Step：Monomer alpha-olefin sodium sulfonate is first filtered to remove impurity, and adjusted with mass fraction for 20% NaOH solution
Save to neutrality, then using deionized water as reaction medium, by the monomer alpha-olefin sodium sulfonate (AOS) and one of deionized water, half
Half monomeric acrylic (AA) is put into 65 DEG C of there-necked flask, adds the AOS and AA of remainder after 54min, and when the
Begin to continue that slowly initiator ammonium persulfate is added dropwise in there-necked flask after AOS and AA once is added into there-necked flask, be added dropwise
Time is 84min, and reaction system is stirred with 28r/min speed during dropwise addition.Constant temperature continues anti-after completion of dropping
Answer and reaction system is stirred with 52r/min speed during 2h, insulation reaction, question response stands after terminating, naturally cold
But to room temperature, the NaOH solution for being then 20% with mass fraction regulation pH is 8.2, finally obtains the brown that solid content is about 20%
Transparency liquid is AOS-AA bipolymer surfactants.
Embodiment 7
Reaction raw materials：Mol ratio is 1:2.5 monomer alpha-olefin sodium sulfonate and monomeric acrylic, monomer gross mass
2.0% initiator ammonium persulfate, surplus is deionized water (reaction medium), monomer alpha-olefin sodium sulfonate wherein in reaction system
Mass percent concentration be 14%.
Step：Monomer alpha-olefin sodium sulfonate is first filtered to remove impurity, and adjusted with mass fraction for 20% NaOH solution
Save to neutrality, then using deionized water as reaction medium, by the monomer alpha-olefin sodium sulfonate (AOS) and one of deionized water, half
Half monomeric acrylic (AA) is put into 75 DEG C of there-necked flask, adds the AOS and AA of remainder after 56min, and when the
Begin to continue that slowly initiator ammonium persulfate is added dropwise in there-necked flask after AOS and AA once is added into there-necked flask, be added dropwise
Time is 86min, and reaction system is stirred with 29r/min speed during dropwise addition.Constant temperature continues anti-after completion of dropping
Answer and reaction system is stirred with 58r/min speed during 6h, insulation reaction, question response stands after terminating, naturally cold
But to room temperature, the NaOH solution for being then 20% with mass fraction regulation pH is 8.8, finally obtains the brown that solid content is about 20%
Transparency liquid is AOS-AA bipolymer surfactants.
Embodiment 8
Reaction raw materials：Mol ratio is 1:3.5 monomer alpha-olefin sodium sulfonate and monomeric acrylic, monomer gross mass
3.5% initiator ammonium persulfate, surplus is deionized water (reaction medium), monomer alpha-olefin sodium sulfonate wherein in reaction system
Mass percent concentration be 15%.
Step：Monomer alpha-olefin sodium sulfonate is first filtered to remove impurity, and adjusted with mass fraction for 20% NaOH solution
Save to neutrality, then using deionized water as reaction medium, by the monomer alpha-olefin sodium sulfonate (AOS) and one of deionized water, half
Half monomeric acrylic (AA) is put into 80 DEG C of there-necked flask, adds the AOS and AA of remainder after 58min, and when the
Begin to continue that slowly initiator ammonium persulfate is added dropwise in there-necked flask after AOS and AA once is added into there-necked flask, be added dropwise
Time is 88min, and reaction system is stirred with 30r/min speed during dropwise addition.Constant temperature continues anti-after completion of dropping
Answer and reaction system is stirred with 56r/min speed during 7h, insulation reaction, question response stands after terminating, naturally cold
But to room temperature, the NaOH solution for being then 20% with mass fraction regulation pH is 8.7, finally obtains the brown that solid content is about 20%
Transparency liquid is AOS-AA bipolymer surfactants.
The deinking efficiency for the AOS-AA bipolymer surfactants prepared below to the present invention is tested.
The deinking agent tested：
By AEO-9 (AEO), deinking agent -1, deinking agent -2, deinking agent -3, compounding deinking agent -1, multiple
With deinking agent -2, compounding deinking agent -3, commercially available deinking agent -1 (XTDM type deinking agents, Qingzhou City Xin Di Chemical Co., Ltd.s) and city
Deinking agent -2 (TM type deinking agents, Tumen City Fangzheng Chemical Aids Plant) is sold individually as deinking agent, deinking is carried out real
Test.
Wherein, it is in mass ratio 1 that compounding deinking agent -1, which is,:2 deinking agent -3, AEO-9 are mixed after obtain；Compound deinking
It is in mass ratio 1 that agent -2, which is,:2:1 deinking agent -3, AEO-9 and commercially available deinking agent -1 are mixed after obtain；Compound deinking agent -3
To be 1 in mass ratio:2:1 deinking agent -3, AEO-9 and commercially available deinking agent -2 are mixed after obtain.
Deinking process：
1) waste paper：The useless periodical paper of 20g is weighed, 2cm × 2cm fragment is torn into, uniform standby whole experiment process is sufficiently mixed
Use.
2) technological parameters：Pulping concentration 6%, pulping temperature 60 C, pulping time 30min, 60 DEG C of curing temperature, curing
Time 30min, diluted concentration 1.5%.
3) deinkings medicine and its consumption：
The 1% of NaOH over dry waste paper quality
NaSiO3The 3% of over dry waste paper quality
The 0.2% of deinking agent over dry waste paper quality
4) de-inking methods：First above-mentioned deinking medicine is added in 60 DEG C of water, the waste paper for treating deinking is added after stirring and dissolving
Piece, the pulping 30min under certain speed, then insulation curing 30min, is cured after terminating, then paper pulp is carried out into flotation successively, copied
Piece, drying, the quantification of 60 ± 3g/m of handsheet-2, detected after being dried in 105 ± 3 DEG C of baking oven.
Deinking result：
AEO-9, deinking agent -1, deinking agent -2, deinking agent -3, compounding deinking agent -1, compounding deinking agent -2, compounding deinking
The deinking efficiency contrast of agent -3, commercially available deinking agent -1 and commercially available deinking agent -2 is as shown in table 1.Wherein whiteness uses YZ-Q-48B types
Measuring brightness instrument is determined, and ink particle content is determined with AutoSpec softwares.
The deinking efficiency comparing result of table 1
The deinking efficiency of deinking agent -3 prepared by the present invention is higher than AEO-9 and commercially available deinking agent as can be seen from Table 1, and
The recycled paper whiteness after deinking agent -1, the compounding deinking of deinking agent -2 is compounded also above with AEO-9, commercially available deinking agent -1 and commercially available
Recycled paper whiteness after the deinking of deinking agent -2, and with the present invention prepare deinking agent -2, deinking agent -3, compounding deinking agent -1,
The paper ink particle content after the deinking of deinking agent -2 is compounded to be significantly lower than with AEO-9, commercially available deinking agent -1 and commercially available deinking agent -2
Ink particle content after deinking on paper.Because by the optimization of polymerizing condition, the AOS-AA binary that the present invention is provided is total to
Polymer surfactants its strand compared with commercially available deinking agent is longer, thus have to ink preferably disperse, emulsify, trapping and
Washability.AOS-AA bipolymers surfactant can not only be used for deinking, deinking effect separately as deinking agent
Really good, Paper White Degree is high, and ink particle content is few.But also compounding use can be carried out with commercially available low molecule deinking agent, pass through copolymerization
The synergy of thing surfactant and low-molecular-weight surfactant performance, obtained compounding deinking agent has more preferably deinking effect
Really, its recycled paper whiteness is higher, and residual ink is less.Therefore, AOS-AA bipolymers surfactant has well
Application prospect.
Claims (10)
1. a kind of AOS-AA bipolymers surfactant, it is characterised in that：The AOS-AA bipolymer surfactants
Generated by monomer alpha-olefin sodium sulfonate and monomeric acrylic in the presence of initiator ammonium persulfate by polymerisation, wherein α-
Alkene sulfonic acid sodium and the mol ratio of acrylic acid are 1:(1-4), initiator amount is the 0.5~4.5% of monomer gross mass, and reaction is situated between
Matter is that the mass percent concentration of monomer alpha-olefin sodium sulfonate in water, reaction system is 10~15%.
2. the preparation method of the AOS-AA bipolymer surfactants described in a kind of claim 1, it is characterised in that specific
Step is as follows：
Monomer alpha-olefin sodium sulfonate, monomeric acrylic, initiator ammonium persulfate and water are added to 65~105 DEG C of isothermal reaction
In container, 2~7h of insulation reaction, reaction stands after terminating, naturally cools to room temperature, then adjusts pH value to 8~9, that is, obtains
AOS-AA bipolymer surfactants.
3. the preparation method of AOS-AA bipolymers surfactant according to claim 2, it is characterised in that：It is described
Monomer alpha-olefin sodium sulfonate and monomeric acrylic fed intake in two times, every time input half monomer alpha-olefin sodium sulfonate and
The monomeric acrylic of half, the interval time fed intake twice is 50~60min.
4. the preparation method of AOS-AA bipolymers surfactant according to claim 3, it is characterised in that：It is described
Initiator ammonium persulfate take the mode of dropwise addition to be fed intake, when first time input monomer alpha-olefin sodium sulfonate and monomer propylene
Start that initiator is continuously added dropwise when sour, the dropwise addition used time of initiator is 80~90min, drip and carry out being incubated instead again after initiator
Should.
5. the preparation method of AOS-AA bipolymers surfactant according to claim 4, it is characterised in that：In drop
Plus with 25~30r/min speed reaction system is stirred during initiator.
6. the preparation method of AOS-AA bipolymers surfactant according to claim 2, it is characterised in that：Protecting
Reaction system is stirred with 50~60r/min speed in warm course of reaction.
7. the preparation method of AOS-AA bipolymers surfactant according to claim 2, it is characterised in that：It is described
Monomer alpha-olefin sodium sulfonate going the removal of impurity using preceding first filtering, then adjust its pH value to neutrality.
8. the preparation method of AOS-AA bipolymers surfactant according to claim 7, it is characterised in that：Use matter
It is 15~25% NaOH solution regulation pH value to measure fraction.
9. the AOS-AA bipolymers surfactant described in claim 1 is as deinking agent in useless periodical paper floatation and ink removing
Application.
10. application of the AOS-AA bipolymer surfactants in deinking agent is prepared described in claim 1, the deinking
Agent is the deinking agent that useless periodical paper used during floatation and ink removing.
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