CN108914694A - A kind of preparation method of Study of Paper-Strengthening Agent Based - Google Patents
A kind of preparation method of Study of Paper-Strengthening Agent Based Download PDFInfo
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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
- D21H21/18—Reinforcing agents
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Abstract
The invention discloses a kind of preparation methods of Study of Paper-Strengthening Agent Based, belong to paper making additive technical field.By phosphatide and lactic acid in mass ratio 3：1~5：1 is mixed in flask, in temperature be 45~65 DEG C, revolving speed be 250~380r/min under conditions of, after being stirred to react, into flask with the hydrogen peroxide of 0.2~0.3 times of phosphatide quality of the rate dropwise addition of 5~8mL/min, continuing at temperature is 30~40 DEG C, after being stirred to react, obtains modified phospholipid blank, by modified phospholipid blank in temperature be 60~70 DEG C, revolving speed is that 120~150r/min obtains modified phospholipid under conditions of pressure is 120~150kPa after 2~3h of concentrated by rotary evaporation；By modified emulsion and modified phospholipid in mass ratio 5：1~10：1 mixes, and the cerous nitrate of 0.1~0.2 times of modified emulsion quality is added into the mixture of modified emulsion and modified phospholipid, is 45~65 DEG C in temperature, under conditions of revolving speed is 300~350r/min, after being stirred to react, obtains Study of Paper-Strengthening Agent Based.Gained Study of Paper-Strengthening Agent Based of the invention has excellent dry strength and wet strength.
Description
Technical field
The invention discloses a kind of preparation methods of Study of Paper-Strengthening Agent Based, belong to paper making additive technical field.
Background technique
With the economic development and improvement of people's living standards, people constantly increase the demand of paper, to paper
The requirement of quality is higher and higher, has largely pushed the development of paper industry.The intensity of paper be it is affected by many factors,
It is dependent firstly on into the arrangement and distribution of fiber in the intensity and paper of interfibrous binding force and fiber itself in paper.And most
Important is binding force between fiber, there are four types of the binding force of fiber is general：Chemical bond, hydrogen bond, Van der Waals force and fiber surface are handed over
Knit power.Wherein Hydrogen bonding forces are the major ways that paper bond strength generates, and the hydroxyl of cellulosic molecule is quite a lot of, by countless
The Hydrogen bonding forces that microfibre is formed each other be it is very big, this be dry strength generate the main reason for.Drying strengthening agent is from its molecule
It is mostly the high molecular polymer containing polyhydroxy from the point of view of the characteristics of structure, here it is Hydrogenbond is formed between cellulosic molecule
Basis, the hydrogen bond in drying strengthening agent molecule forms group and the hydroxyl of fiber surface forms hydrogen bond.Such as the free glucose of starch
Hydroxyl takes part in the formation of fiber surface cellulosic molecule hydrogen bond, so starch increases the binding force of internal fiber, in two beams
The quantity of hydrogen bond is increased on interfibrous natural combination face.Drying strengthening agent has certain improvement to make paper sheet formation process simultaneously
With drying strengthening agent plays dispersant with high efficiency at this time, i.e. drying strengthening agent makes fiber in slurry be more evenly distributed, and provides more fibers
Between and fiber and macromolecule between combine, to improve dry strength.
Drying strengthening agent is a kind of important chemical for increasing paper strength in paper industry, many water-soluble, with fiber energy
The high polymer for forming Hydrogenbond can become drying strengthening agent.Drying strengthening agent is commonly used in compensation addition filler or the fiber of inferior grade
（Such as regenerated fiber）The decline of caused paper intensity.
Most of natural and synthesis drying strengthening agent is all hydrophilic macromolecule, and the dispersion of these macromolecules increases between the fibers
Bonding quantity between fiber, to achieve the purpose that improve paper strength.Common drying strengthening agent have natural polymer such as starch and its
Modifier（Such as cationic starch, anionic starch）, synthetic polymer such as polyacrylamide, glyoxal polyacrylamide and poly- second
Enol etc. and other water-soluble natural product type drying strengthening agents.In most cases, mass fraction 0.1%~0.35% is only added
The substance can reach and effectively do potent fruit.Study of Paper-Strengthening Agent Based dry strength and wet strength traditional at present can not be further
It improves, also needs to study it.
Summary of the invention
The present invention solves the technical problem of：It can not be further for traditional paper drying strengthening agent dry strength and wet strength
The problem of raising, provides a kind of preparation method of Study of Paper-Strengthening Agent Based.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that：
（1）By epoxidized soybean oil and dioxygen aqueous mixtures in mass ratio 5：1~8：1 mixing, after being stirred to react, obtains pretreatment epoxy
Soybean oil, by pretreatment epoxidized soybean oil and nickel in mass ratio 30：1~50：1 mixing, and under atmosphere of hydrogen, it is stirred to react,
Obtain modified epoxy soybean oil；
（2）According to parts by weight, it successively weighs：15~20 parts of isofoer diisocyanates, 20~30 parts of polypropylene oxide two
Alcohol, 4~5 parts of modified epoxy soybean oils, 5~10 parts of 2,2- hydroxymethylacrylates, 8~12 parts of 1,4-butanediol, 20~40 part third
Ketone, 8~10 parts of methyl methacrylates, 5~8 parts of butyl acrylates, 3~5 parts of chain extenders, 3~6 parts of initiators and 70~90 parts
1,4-butanediol is mixed with acetone, obtains 1,4-butanediol acetone soln by water, by isofoer diisocyanate and polyoxygenated third
Enediol mixing, and is added modified epoxy soybean oil, after being stirred to react, is added 1,4-butanediol acetone soln, after insulation reaction,
2,2- hydroxymethylacrylate is added, continues insulation reaction, obtains preconditioned mixture, preconditioned mixture is cooled down, and first is added
Base methyl acrylate and butyl acrylate after being stirred, adjust pH to 6.8~7.4, obtain mixture, mixture and water are mixed
It closes, and chain extender is added, after being stirred, initiator is added, after being stirred to react, cool down, acetone is taken out in discharging, and filtering obtains modification
Lotion；
（3）By phosphatide and lactic acid in mass ratio 3：1~5：After being stirred to react, 0.2~0.3 times of phosphatide quality of pair is added dropwise in 1 mixing
Oxygen water, continues after being stirred to react, and concentrated by rotary evaporation obtains modified phospholipid；
（4）By modified emulsion and modified phospholipid in mass ratio 5：1~10：1 mixing, and it is added 0.1~0.2 times of modified emulsion quality
Cerous nitrate, after being stirred to react, obtain Study of Paper-Strengthening Agent Based.
Step（1）The dioxygen aqueous mixtures are by hydrogen peroxide and acetic acid in mass ratio 1：1~2：1 mixing, obtains hydrogen peroxide
Mixture.
Step（2）The initiator is potassium peroxydisulfate, any one in sodium peroxydisulfate or azodiisobutyronitrile.
Step（3）The phosphatide is any one in lecithin or cuorin.
Step（2）The adjusting pH agents useful for same is pentamethyl-diethylenetriamine, N, N- dimethyl cyclohexyl amine, triethylene two
Any one in amine and triethylamine or two kinds.
Step（2）The chain extender is any one in ethylenediamine or N methyldiethanol amine.
The beneficial effects of the invention are as follows：
（1）Modified epoxy soybean oil is added when preparing Study of Paper-Strengthening Agent Based by the present invention, firstly, epoxidized soybean oil is by being modified
Afterwards, epoxy soybean oil meter face has hydroxyl group, to can increase in paper in product use process after being added in product
The hydrogen bond action of fibrous inside, and then improve the potent fruit of doing of product, secondly, epoxidized soybean oil after modification with poly- ammonia
Ester is compound, so that connecting polyurethane macromolecular carries hydroxyl in section, and can be with isocyanate group shape
Crosslinking is reticulated, and then improves dry strength of the paper after using product, also, due to the addition of modified epoxy soybean oil, it can
Assign product certain hydrophobicity, to make paper after using product, the wet strength of paper is improved；
（2）Modified phospholipid is added when preparing Study of Paper-Strengthening Agent Based by the present invention, on the one hand, after modification due to phosphatide, contains in phosphatide
There is hydroxyl group, so that the hydroxy radical content in product can be improved after being added in product, and then enhances paper after product treatment
Hydrogen bond action, improve the dry strength of paper, on the other hand, due to the addition of modified epoxy soybean oil, make poly- ammonia in product
Hydroxyl is carried on ester molecule chain, so that modified phospholipid can be crosslinked in polyurethane surface under the action of catalyst, and then improves and produces
The crosslink density of product improves the dry strength of paper and wet strength.
Specific embodiment
By epoxidized soybean oil and dioxygen aqueous mixtures in mass ratio 5：1~8：1 is mixed in three-necked flask, controls hydrogen peroxide
Mixture drips to the greatest extent in 100~120min, and is 80~85 DEG C in temperature, under conditions of revolving speed is 300~400r/min, stirs
After reacting 30~40min, pretreatment epoxidized soybean oil is obtained, by pretreatment epoxidized soybean oil and nickel in mass ratio 30：1~50：1 is mixed
Close, and hydrogen be passed through with the rate of 8~20mL/min into the mixture of pretreatment epoxidized soybean oil and nickel, in temperature be 50~
70 DEG C, under conditions of revolving speed is 300~400r/min, after being stirred to react 1~2h, obtain modified epoxy soybean oil；In parts by weight
Meter, successively weighs：15~20 parts of isofoer diisocyanates, 20~30 parts of polyoxypropyleneglycols, 4~5 parts of modified epoxies
Soybean oil, 5~10 parts of 2,2- hydroxymethylacrylates, 8~12 parts of 1,4-butanediol, 20~40 parts of acetone, 8~10 parts of metering systems
Sour methyl esters, 5~8 parts of butyl acrylates, 3~5 parts of chain extenders, 3~6 parts of initiators and 70~90 parts of water, by 1,4-butanediol with
Acetone mixing is 30~40 DEG C in temperature, under conditions of revolving speed is 300~400r/min, after being stirred 20~30min, obtains
Isofoer diisocyanate and polyoxypropyleneglycol are mixed in four-hole boiling flask by 1,4-butanediol acetone soln, and to
Modified epoxy soybean oil is added in four-hole boiling flask, is 75~85 DEG C in temperature, under conditions of revolving speed is 280~350r/min, stirs
After mixing 1~2h of reaction, 1,4-butanediol acetone soln is added with the rate of 5~6mL/min into four-hole boiling flask, in temperature be 80
Under conditions of DEG C after 60~70min of insulation reaction, then 2 are added into four-hole boiling flask, 2- hydroxymethylacrylate, continuing at temperature is
80~82 DEG C, under conditions of revolving speed is 250~350r/min, after 2~3h of insulation reaction, preconditioned mixture is obtained, will be pre-processed
Mixture is cooled to 40 DEG C, and methyl methacrylate and butyl acrylate are added into preconditioned mixture, in temperature be 45
~55 DEG C, under conditions of revolving speed is 300~380r/min, after being stirred 20~30min, mixture blank is obtained, adjusts mixing
The pH to 6.8~7.4 of object blank, obtains mixture, mixture and water is mixed in reaction kettle, and chain extension is added into reaction kettle
Agent, in temperature be 45~55 DEG C, revolving speed be 300~400r/min under conditions of, after being stirred 30~40min, to reaction kettle
The time is added as 3~4h in middle addition initiator, control, and is 70~75 DEG C in temperature, and revolving speed is the condition of 300~400r/min
Under be stirred to react 1~2h after, material in reactor temperature is down to room temperature, discharge, modified emulsion blank is obtained, by modified emulsion base
Material pumps acetone, filters, obtains modified emulsion；By phosphatide and lactic acid in mass ratio 3：1~5：1 is mixed in flask, is in temperature
45~65 DEG C, under conditions of revolving speed is 250~380r/min, after being stirred to react 30~40min, into flask with 5~8mL/min
Rate 0.2~0.3 times of phosphatide quality of hydrogen peroxide is added dropwise, continuing at temperature is 30~40 DEG C, and revolving speed is 200~350r/min
Under conditions of, after being stirred to react 50~60min, obtain modified phospholipid blank, by modified phospholipid blank in temperature be 60~70 DEG C, turn
Speed is that 120~150r/min obtains modified phospholipid under conditions of pressure is 120~150kPa after 2~3h of concentrated by rotary evaporation；It will be modified
Lotion and modified phospholipid in mass ratio 5：1~10：1 mixing, and be added and be modified into the mixture of modified emulsion and modified phospholipid
The cerous nitrate that 0.1~0.2 times of quality of the emulsion is 45~65 DEG C in temperature, under conditions of revolving speed is 300~350r/min, stirs
After reacting 2~3h, Study of Paper-Strengthening Agent Based is obtained.The dioxygen aqueous mixtures are by hydrogen peroxide and acetic acid in mass ratio 1：1~2：1 is mixed
It closes, obtains dioxygen aqueous mixtures.The initiator is potassium peroxydisulfate, any one in sodium peroxydisulfate or azodiisobutyronitrile.It is described
Phosphatide is any one in lecithin or cuorin.The adjusting pH agents useful for same is pentamethyl-diethylenetriamine, N, N- diformazan
Any one in basic ring hexylamine, triethylene diamine and triethylamine or two kinds.The chain extender is ethylenediamine or N- methyl diethanol
Any one in amine.
Example 1
By epoxidized soybean oil and dioxygen aqueous mixtures in mass ratio 8：1 is mixed in three-necked flask, and control dioxygen aqueous mixtures exist
Drop is most in 120min, and is 85 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred to react 40min, obtains pretreatment ring
Oxygen soybean oil, by pretreatment epoxidized soybean oil and nickel in mass ratio 50：1 mixing, and to the mixed of pretreatment epoxidized soybean oil and nickel
It closes in object and hydrogen is passed through with the rate of 20mL/min, be 70 DEG C in temperature, under conditions of revolving speed is 400r/min, be stirred to react 2h
Afterwards, modified epoxy soybean oil is obtained；According to parts by weight, it successively weighs：20 parts of isofoer diisocyanates, 30 parts of polyoxygenateds third
Enediol, 5 parts of modified epoxy soybean oils, 10 parts of 2,2- hydroxymethylacrylates, 12 parts of 1,4-butanediol, 40 parts of acetone, 10 parts of first
Base methyl acrylate, 8 parts of butyl acrylates, 5 parts of chain extenders, 6 parts of initiators and 90 parts of water, 1,4-butanediol and acetone are mixed
It closes, is 40 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 30min, obtains 1,4-butanediol acetone soln,
Isofoer diisocyanate and polyoxypropyleneglycol are mixed in four-hole boiling flask, and modified ring is added into four-hole boiling flask
Oxygen soybean oil, in temperature be 85 DEG C, revolving speed be 350r/min under conditions of, after being stirred to react 2h, into four-hole boiling flask with 6mL/
1,4-butanediol acetone soln is added in the rate of min, under conditions of being 80 DEG C in temperature after insulation reaction 70min, then to four mouthfuls
2,2- hydroxymethylacrylate is added in flask, continuing at temperature is 82 DEG C, under conditions of revolving speed is 350r/min, insulation reaction 3h
Afterwards, preconditioned mixture is obtained, preconditioned mixture is cooled to 40 DEG C, and methyl methacrylate is added into preconditioned mixture
Ester and butyl acrylate are 55 DEG C in temperature, under conditions of revolving speed is 380r/min, after being stirred 30min, obtain mixture base
Material adjusts the pH to 7.4 of mixture blank, obtains mixture, and mixture and water are mixed in reaction kettle, and adds into reaction kettle
Enter chain extender, is 55 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 40min, is added and draws into reaction kettle
Send out agent, control be added the time be 4h, and in temperature be 75 DEG C, revolving speed be 400r/min under conditions of be stirred to react 2h after, will be anti-
It answers material temperature in kettle to be down to room temperature, discharges, obtain modified emulsion blank, modified emulsion blank is pumped into acetone, filter, obtain modification
Lotion；By phosphatide and lactic acid in mass ratio 5：1 is mixed in flask, in temperature be 65 DEG C, revolving speed be 380r/min under conditions of,
After being stirred to react 40min, into flask with the hydrogen peroxide of 0.3 times of phosphatide quality of the rate dropwise addition of 8mL/min, continuing at temperature is
40 DEG C, under conditions of revolving speed is 350r/min, after being stirred to react 60min, modified phospholipid blank is obtained, by modified phospholipid blank in temperature
Degree is 70 DEG C, revolving speed 150r/min, under conditions of pressure is 150kPa after concentrated by rotary evaporation 3h, obtains modified phospholipid；By modified milk
Liquid and modified phospholipid in mass ratio 10：1 mixing, and modified emulsion quality is added into the mixture of modified emulsion and modified phospholipid
0.2 times of cerous nitrate is 65 DEG C in temperature, under conditions of revolving speed is 350r/min, after being stirred to react 3h, obtains Study of Paper-Strengthening Agent Based.
The dioxygen aqueous mixtures are by hydrogen peroxide and acetic acid in mass ratio 2：1 mixing, obtains dioxygen aqueous mixtures.The initiator was
Potassium sulfate.The phosphatide is lecithin.The adjusting pH agents useful for same is pentamethyl-diethylenetriamine.The chain extender is second two
Amine.
Example 2
According to parts by weight, it successively weighs：20 parts of isofoer diisocyanates, 30 parts of polyoxypropyleneglycols, 10 part 2,2-
Hydroxymethylacrylate, 12 parts of 1,4-butanediol, 40 parts of acetone, 10 parts of methyl methacrylates, 8 parts of butyl acrylates, 5 parts of chain extensions
Agent, 6 parts of initiators and 90 parts of water, 1,4-butanediol is mixed with acetone, is 40 DEG C in temperature, revolving speed is the condition of 400r/min
Under, after being stirred 30min, 1,4-butanediol acetone soln is obtained, by isofoer diisocyanate and polyoxypropyleneglycol
Be mixed in four-hole boiling flask, in temperature be 85 DEG C, revolving speed be 350r/min under conditions of, after being stirred to react 2h, to four-hole boiling flask
In 1,4-butanediol acetone soln is added with the rate of 6mL/min, under conditions of being 80 DEG C in temperature after insulation reaction 70min,
2,2- hydroxymethylacrylate is added into four-hole boiling flask again, continuing at temperature is 82 DEG C, under conditions of revolving speed is 350r/min, is protected
After temperature reaction 3h, preconditioned mixture is obtained, preconditioned mixture is cooled to 40 DEG C, and methyl is added into preconditioned mixture
Methyl acrylate and butyl acrylate are 55 DEG C in temperature, under conditions of revolving speed is 380r/min, after being stirred 30min, obtain
Mixture blank adjusts the pH to 7.4 of mixture blank, obtains mixture, and mixture and water are mixed in reaction kettle, and to anti-
Answer and chain extender be added in kettle, in temperature be 55 DEG C, revolving speed be 400r/min under conditions of, after being stirred 40min, to reaction kettle
The time is added as 4h in middle addition initiator, control, and is 75 DEG C in temperature, and revolving speed is stirred to react 2h under conditions of being 400r/min
Afterwards, material in reactor temperature is down to room temperature, discharges, obtains modified emulsion blank, modified emulsion blank is pumped into acetone, mistake
Filter, obtains modified emulsion；By phosphatide and lactic acid in mass ratio 5：1 is mixed in flask, in temperature be 65 DEG C, revolving speed 380r/min
Under conditions of, after being stirred to react 40min, 0.3 times of phosphatide quality of hydrogen peroxide is added dropwise with the rate of 8mL/min into flask, after
Continuing in temperature is 40 DEG C, under conditions of revolving speed is 350r/min, after being stirred to react 60min, obtains modified phospholipid blank, by modified phosphorus
Rouge blank is 70 DEG C, revolving speed 150r/min in temperature, under conditions of pressure is 150kPa after concentrated by rotary evaporation 3h, obtains modified phosphorus
Rouge；By modified emulsion and modified phospholipid in mass ratio 10：1 mixing, and be added into the mixture of modified emulsion and modified phospholipid
The cerous nitrate that 0.2 times of modified emulsion quality is 65 DEG C in temperature, under conditions of revolving speed is 350r/min, after being stirred to react 3h, obtains
Study of Paper-Strengthening Agent Based.The dioxygen aqueous mixtures are by hydrogen peroxide and acetic acid in mass ratio 2：1 mixing, obtains dioxygen aqueous mixtures.Institute
Stating initiator is potassium peroxydisulfate.The phosphatide is lecithin.The adjusting pH agents useful for same is pentamethyl-diethylenetriamine.It is described
Chain extender is ethylenediamine.
Example 3
By epoxidized soybean oil and dioxygen aqueous mixtures in mass ratio 8：1 is mixed in three-necked flask, and control dioxygen aqueous mixtures exist
Drop is most in 120min, and is 85 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred to react 40min, obtains pretreatment ring
Oxygen soybean oil, by pretreatment epoxidized soybean oil and nickel in mass ratio 50：1 mixing, and to the mixed of pretreatment epoxidized soybean oil and nickel
It closes in object and hydrogen is passed through with the rate of 20mL/min, be 70 DEG C in temperature, under conditions of revolving speed is 400r/min, be stirred to react 2h
Afterwards, modified epoxy soybean oil is obtained；According to parts by weight, it successively weighs：20 parts of isofoer diisocyanates, 30 parts of polyoxygenateds third
Enediol, 5 parts of modified epoxy soybean oils, 10 parts of 2,2- hydroxymethylacrylates, 12 parts of 1,4-butanediol, 40 parts of acetone, 10 parts of first
Base methyl acrylate, 8 parts of butyl acrylates, 5 parts of chain extenders, 6 parts of initiators and 90 parts of water, 1,4-butanediol and acetone are mixed
It closes, is 40 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 30min, obtains 1,4-butanediol acetone soln,
Isofoer diisocyanate and polyoxypropyleneglycol are mixed in four-hole boiling flask, and modified ring is added into four-hole boiling flask
Oxygen soybean oil, in temperature be 85 DEG C, revolving speed be 350r/min under conditions of, after being stirred to react 2h, into four-hole boiling flask with 6mL/
1,4-butanediol acetone soln is added in the rate of min, under conditions of being 80 DEG C in temperature after insulation reaction 70min, then to four mouthfuls
2,2- hydroxymethylacrylate is added in flask, continuing at temperature is 82 DEG C, under conditions of revolving speed is 350r/min, insulation reaction 3h
Afterwards, preconditioned mixture is obtained, preconditioned mixture is cooled to 40 DEG C, and methyl methacrylate is added into preconditioned mixture
Ester and butyl acrylate are 55 DEG C in temperature, under conditions of revolving speed is 380r/min, after being stirred 30min, obtain mixture base
Material adjusts the pH to 7.4 of mixture blank, obtains mixture, and mixture and water are mixed in reaction kettle, and adds into reaction kettle
Enter chain extender, is 55 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 40min, is added and draws into reaction kettle
Send out agent, control be added the time be 4h, and in temperature be 75 DEG C, revolving speed be 400r/min under conditions of be stirred to react 2h after, will be anti-
It answers material temperature in kettle to be down to room temperature, discharges, obtain modified emulsion blank, modified emulsion blank is pumped into acetone, filter, obtain modification
Lotion；0.2 times of modified emulsion quality of cerous nitrate is added into modified emulsion, is 65 DEG C in temperature, revolving speed is 350r/min's
Under the conditions of, after being stirred to react 3h, obtain Study of Paper-Strengthening Agent Based.The dioxygen aqueous mixtures are by hydrogen peroxide and acetic acid in mass ratio 2：1
Mixing, obtains dioxygen aqueous mixtures.The initiator is potassium peroxydisulfate.The phosphatide is lecithin.The adjusting pH agents useful for same
For pentamethyl-diethylenetriamine.The chain extender is ethylenediamine.
Comparative example：The Study of Paper-Strengthening Agent Based of Tai'an paper making additive Co., Ltd production.
1 to 3 gained Study of Paper-Strengthening Agent Based of example and comparative example product are subjected to performance detection, the specific detection method is as follows：
Pattern dry and wet tensile strength is detected according to GB/T 22898, and calculates wet strength according to the following formula,
Wet strength=wet tensile (strength)/dry tensile strength × 100%
Specific testing result is as shown in table 1：
Table 1：Performance detection table
By 1 testing result of table it is found that present invention gained Study of Paper-Strengthening Agent Based has excellent dry strength and wet strength.
Claims (6)
1. a kind of preparation method of Study of Paper-Strengthening Agent Based, it is characterised in that：Specifically preparation step is：
（1）By epoxidized soybean oil and dioxygen aqueous mixtures in mass ratio 5：1~8：1 mixing, after being stirred to react, obtains pretreatment epoxy
Soybean oil, by pretreatment epoxidized soybean oil and nickel in mass ratio 30：1~50：1 mixing, and under atmosphere of hydrogen, it is stirred to react,
Obtain modified epoxy soybean oil；
（2）According to parts by weight, it successively weighs：15~20 parts of isofoer diisocyanates, 20~30 parts of polypropylene oxide two
Alcohol, 4~5 parts of modified epoxy soybean oils, 5~10 parts of 2,2- hydroxymethylacrylates, 8~12 parts of 1,4-butanediol, 20~40 part third
Ketone, 8~10 parts of methyl methacrylates, 5~8 parts of butyl acrylates, 3~5 parts of chain extenders, 3~6 parts of initiators and 70~90 parts
1,4-butanediol is mixed with acetone, obtains 1,4-butanediol acetone soln by water, by isofoer diisocyanate and polyoxygenated third
Enediol mixing, and is added modified epoxy soybean oil, after being stirred to react, is added 1,4-butanediol acetone soln, after insulation reaction,
2,2- hydroxymethylacrylate is added, continues insulation reaction, obtains preconditioned mixture, preconditioned mixture is cooled down, and first is added
Base methyl acrylate and butyl acrylate after being stirred, adjust pH to 6.8~7.4, obtain mixture, mixture and water are mixed
It closes, and chain extender is added, after being stirred, initiator is added, after being stirred to react, cool down, acetone is taken out in discharging, and filtering obtains modification
Lotion；
（3）By phosphatide and lactic acid in mass ratio 3：1~5：After being stirred to react, 0.2~0.3 times of phosphatide quality of pair is added dropwise in 1 mixing
Oxygen water, continues after being stirred to react, and concentrated by rotary evaporation obtains modified phospholipid；
（4）By modified emulsion and modified phospholipid in mass ratio 5：1~10：1 mixing, and it is added 0.1~0.2 times of modified emulsion quality
Cerous nitrate, after being stirred to react, obtain Study of Paper-Strengthening Agent Based.
2. a kind of preparation method of Study of Paper-Strengthening Agent Based according to claim 1, it is characterised in that：Step（1）The dioxygen
Aqueous mixtures are by hydrogen peroxide and acetic acid in mass ratio 1：1~2：1 mixing, obtains dioxygen aqueous mixtures.
3. a kind of preparation method of Study of Paper-Strengthening Agent Based according to claim 1, it is characterised in that：Step（2）The initiation
Agent is potassium peroxydisulfate, any one in sodium peroxydisulfate or azodiisobutyronitrile.
4. a kind of preparation method of Study of Paper-Strengthening Agent Based according to claim 1, it is characterised in that：Step（3）The phosphatide
For any one in lecithin or cuorin.
5. a kind of preparation method of Study of Paper-Strengthening Agent Based according to claim 1, it is characterised in that：Step（2）The adjusting
PH agents useful for same is pentamethyl-diethylenetriamine, N, any one in N- dimethyl cyclohexyl amine, triethylene diamine and triethylamine or
Two kinds.
6. a kind of preparation method of Study of Paper-Strengthening Agent Based according to claim 1, it is characterised in that：Step（2）The chain extension
Agent is any one in ethylenediamine or N methyldiethanol amine.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633975A (en) * | 2012-04-10 | 2012-08-15 | 嘉兴市罗星化工有限公司 | Epoxidized soybean oil based modified waterborne polyurethane gloss oil and preparation method thereof |
| CN103571980A (en) * | 2013-10-28 | 2014-02-12 | 浙江理工大学 | Preparation method of softening agent for hard and dry leather cultural relics |
| CN105695644A (en) * | 2016-04-26 | 2016-06-22 | 齐齐哈尔大学 | Modified phospholipid fat liquoring complex agent and preparation method thereof |
| CN108164678A (en) * | 2017-12-21 | 2018-06-15 | 五邑大学 | A kind of soybean oil base water polyurethane of UV curable and preparation method thereof |
-
2018
- 2018-07-24 CN CN201810817052.6A patent/CN108914694A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633975A (en) * | 2012-04-10 | 2012-08-15 | 嘉兴市罗星化工有限公司 | Epoxidized soybean oil based modified waterborne polyurethane gloss oil and preparation method thereof |
| CN103571980A (en) * | 2013-10-28 | 2014-02-12 | 浙江理工大学 | Preparation method of softening agent for hard and dry leather cultural relics |
| CN105695644A (en) * | 2016-04-26 | 2016-06-22 | 齐齐哈尔大学 | Modified phospholipid fat liquoring complex agent and preparation method thereof |
| CN108164678A (en) * | 2017-12-21 | 2018-06-15 | 五邑大学 | A kind of soybean oil base water polyurethane of UV curable and preparation method thereof |
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Application publication date: 20181130 |