CN110396053A - Asparagus fern polyureas performed polymer and preparation method and a kind of coating - Google Patents
Asparagus fern polyureas performed polymer and preparation method and a kind of coating Download PDFInfo
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- CN110396053A CN110396053A CN201910695305.1A CN201910695305A CN110396053A CN 110396053 A CN110396053 A CN 110396053A CN 201910695305 A CN201910695305 A CN 201910695305A CN 110396053 A CN110396053 A CN 110396053A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
- C07C229/24—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having more than one carboxyl group bound to the carbon skeleton, e.g. aspartic acid
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/02—Polyureas
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
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Abstract
The invention discloses asparagus fern polyureas performed polymer and preparation method thereof and a kind of coating, are related to polyureas synthesis technical field.The preparation method is esterified at two maleic acid monoesters, then this monoesters with ethyl alcohol completely by two maleic anhydrides and a dihydric alcohol alcoholysis, and obtained dimaleate and two bulky amines carry out addition reaction and obtain；The features such as technique has high income, and by-product is few, at low cost, easily separated, is a kind of route of environment friendly and economical, overcomes prior art operation complexity, the low defect of yield, and development prospect is wide.Coating provided by the invention includes poly- asparagus fern resin, and the raw material of the poly- asparagus fern resin includes the asparagus fern polyureas performed polymer；The coating is compared compared with traditional coating, and the construction time is relatively up to 30-45 minutes, has excellent elongation, adhesive force and wearability.
Description
Technical field
The present invention relates to polyureas synthesis technical field more particularly to asparagus fern polyureas performed polymer and preparation method and a kind of paintings
Material.
Background technique
Polyaspartic ester SPUA material is a kind of novel aliphatic coating material that polyurea industry field occurs in recent years
Material, it has, and reaction is slow, the high feature of performance, referred to as third generation polyureas.Polyaspartic ester is a kind of steric-hindrance
Binary aliphatic secondary amine, it is different from traditional carbamide paint in application and aspect of performance, revolutionize the gel of traditional polyureas
The disadvantages of time is short, poor adhesive force, easy xanthochromia.Polyaspartic Ester-Based Coatings are close with bi-component aliphatic polyurethane coating.
Compared with conventional urethane coating, and there is solid content high, hardness and gel time is adjustable, good corrosion resistance, wear-resisting, resistance to Huang
Become, the excellent properties such as adhesive force is strong, thick can apply, is insensitive to temperature and humidity, and is not required to special spraying application equipment.It can be prepared
High-weatherability and protective coating resistant to chemical etching, expediting setting type finishing coat, the fast-curing paint for being directly applied to metal base
And industry ground slab, the anti-corrosion protection for being widely used in outdoor iron structure, the petrochemical facility coating for needing antistatic heat insulating and corrosion,
The fields etc. such as are overhauled in the industrial coating of electric power machine, the protection of wind-power tower and fan blade, the protection of concrete surface decoration, tunnel.
The asparagus fern polyurea products of existing market are in order to obtain the longer construction time, it is necessary to a kind of binary primary of big steric hindrance
Amine and diethyl maleate form the performed polymer of asparagus fern polyureas.This amine high production cost, and production process is complicated.Therefore,
The current asparagus fern carbamide resin production cycle is long, generally at least 7 days generated times, and energy consumption is high, and the time of delivery is long, and cost occupies height not
Under.
Summary of the invention
The technical problem to be solved by the present invention is to overcome, prior art synthetic method is complicated, energy consumption is high, the production cycle is long
Defect, asparagus fern polyureas performed polymer and preparation method thereof and a kind of coating are provided.
To solve the above-mentioned problems, the present invention proposes following technical scheme:
A kind of asparagus fern polyureas performed polymer, comprises the following structure formula:
Wherein, R is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 and 20 or less；
R ' is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 and 20 or less；
R1For low carbon chain alkyl or cyclic alkyl, carbon atom number is six or six or less.
The present invention also proposes the method for preparing above-mentioned asparagus fern polyureas performed polymer, comprising the following steps:
Maleic anhydride and dihydric alcohol are pressed equivalent proportion 2:1, carry out alcoholysis reaction, generate two maleic acid binary alcohol esters by S1；
The two maleic acids binary alcohol esters and excessive alkylol are carried out esterification, obtain maleate, reacted by S2
Catalyst is Bronst acid, Lewis acid or solid acid catalyst；
The maleate and excessive bulky amine are carried out addition reaction, obtain the performed polymer by S3.
Further, the carbon-chain structure of the dihydric alcohol is that linear carbon chain, cyclic carbon chain or straight chain ehter bond, carbon atom number exist
20 or 20 or less；The carbon-chain structure of the bulky amine is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 or 20
Below.
Further, the alkylol is low carbon chain alkylol or cyclic alkyl alcohol, carbon atom number be six or six with
Under.
Further, the reaction temperature of the step S1 is -100 DEG C of room temperature.
Further, the reaction temperature of the step S2 is 65-120 DEG C.
Further, the reaction temperature of the step S3 is -80 DEG C of room temperature.
It further, further include removing excessive alkylol step before the step S3.
Further, after the step S3, further include the steps that removing excessive bulky amine.
The present invention also provides a kind of coating, including poly- asparagus fern resin, the raw material of the poly- asparagus fern resin includes the day
Winter polyureas performed polymer.
Compared with prior art, the accessible technical effect of the present invention includes:
The present invention provides a kind of asparagus fern polyureas performed polymer and preparation method thereof, which is to prepare poly- asparagus fern
The elongation and wearability of poly- asparagus fern resin can be improved in the primary raw material of resin.
The present invention also provides the method for preparing asparagus fern polyureas performed polymer, by two maleic anhydrides and a dihydric alcohol alcoholysis at
Maleic acid monoester, then this monoesters is esterified completely with ethyl alcohol, obtained maleate and amine carry out addition reaction and obtain；The technique
The features such as method has high income, and by-product is few, at low cost, easily separated, is a kind of route of environment friendly and economical, is overcome existing
Have that technical operation is complicated, the low defect of yield, development prospect is wide.
Coating provided by the invention includes poly- asparagus fern resin, and the raw material of the poly- asparagus fern resin includes the asparagus fern polyureas
Performed polymer；The coating is compared compared with traditional coating, has excellent elongation, adhesive force and wearability.
Specific embodiment
The technical solution in embodiment will be clearly and completely described below.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that in this embodiment of the present invention term used in the description merely for the sake of description particular implementation
Example purpose and be not intended to limit the embodiment of the present invention.Such as the institute in specification and appended book of the embodiment of the present invention
As use, other situations unless the context is clearly specified, otherwise " one " of singular, "one" and "the" are intended to wrap
Include plural form.
The embodiment of the present invention provides a kind of asparagus fern polyureas performed polymer, comprises the following structure formula:
Wherein, R is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 and 20 or less；
R ' is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 and 20 or less；
R1 is low carbon chain alkyl or cyclic alkyl, and carbon atom number is six or six or less.
The present invention also proposes a kind of method for preparing above-mentioned asparagus fern polyureas performed polymer, comprising the following steps:
Maleic anhydride and dihydric alcohol are pressed equivalent proportion 2:1, carry out alcoholysis reaction, generate two maleic acid binary alcohol esters by S1；
The two maleic acids binary alcohol esters and excessive alkylol are carried out esterification, obtain maleate, reacted by S2
Catalyst is Bronst acid, Lewis acid or solid acid catalyst；
The maleate and excessive bulky amine are carried out addition reaction, obtain the performed polymer by S3.
It is appreciated that in step S2 that two maleic acid binary alcohol esters and excessive alkylol carry out esterification, wherein alkyl
The dosage of alcohol should ensure that two maleic acid binary alcohol esters of reactant react completely and use up, and obtains maleate, is passed through excessive alkyl
Alcohol can promote reaction forward to carry out.In addition, alkylol have the characteristics that it is segregative, after reaction can pass through vacuum distillation purification
Mode remove excessive alkylol, process is simple and easy.
It is appreciated that the maleate that step S2 is obtained contains, there are two unsaturated double-bonds, in the addition reaction of step S3,
The dosage of bulky amine should be at least 2 times of maleate dosage, so that the complete addition of maleate；In order to promote reaction forward into
Row, and ensure the complete addition of maleate, therefore the bulky amine of the maleate content greater than 2 times need to be passed through.In addition, bulky amine
Have the characteristics that it is segregative, after reaction can vacuum distillation purification by way of remove excessive bulky amine.
Further, in step S1, dihydric alcohol is added in maleic anhydride several times, so that reactant can sufficiently react,
The reaction can be in room temperature to carrying out at 100 DEG C.It is appreciated that being repeatedly at least once, in order to accelerate described in the present embodiment
Reaction rate, those skilled in the art can be added reactant in proportional region of the invention according to the actual situation and carry out instead
It answers, all falls in the scope of protection of the present invention.
Catalyst used in the step S2 is Bronst acid catalyst, Lewis acid catalyst or solid acid catalyst.
It should be noted that the solid acid catalyst include alkyl-substituted benzene sulfonic acid, it is alkyl-substituted naphthalene sulfonic acids, non-
Alkyl-substituted benzene sulfonic acid, non-alkyl-substituted naphthalene sulfonic acids, poly- sulfonic resin, poly- perfluorosulfonic acid type resin, heteropoly acid and miscellaneous
Multi-acid salt, molecular sieve, acidic ion liquid, single complex carrier SO4 2-/MXOYSolid super-strong acid, S2O8 2-/MXOYSolid super strong
At least one of acid, wherein MXOYFor NiO, TiO2, ZrO2, SiO2, SnO2, Fe2O3, Al2O3, WO3And MoO3In at least one
Kind.
Further, the carbon-chain structure of the dihydric alcohol is that linear carbon chain, cyclic carbon chain or straight chain ehter bond, carbon atom number exist
20 or 20 or less；The carbon-chain structure of the bulky amine is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 or 20
Below.
In other embodiments, the bulky amine can be kiber alkyl amine or polyetheramine, carbon-chain structure be linear carbon chain,
Cyclic carbon chain or straight chain ehter bond, carbon atom number is 20 or 20 or less.
Further, in step S2, the temperature of esterification is 65-120 DEG C.Reaction product includes water, by the alkyl
Alcohol band water, promotes reaction forward to carry out.Excessive alkylol is removed by way of vacuum distillation purification after reaction.
Further, the alkylol is low carbon chain alkylol or cyclic alkyl alcohol, carbon atom number be six or six with
Under.
Further, the Michael addition reaction in step S3 can be in room temperature to carrying out at 80 DEG C.Pass through after reaction
The mode of vacuum distillation removes excessive bulky amine.
Specifically, step S1 reaction equation is as follows:
Step S2 reaction equation is as follows:
Step S3 reaction equation is as follows:
Wherein, in reaction equation 1-3, R is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 and 20 or less；
R ' is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 and 20 or less；
R1 is low carbon chain alkyl or cyclic alkyl, and carbon atom number is six or six or less.
Embodiment one:
The present embodiment proposes a kind of asparagus fern polyureas performed polymer A comprising following structural formula:
The present embodiment also provides the preparation method of performed polymer A:
The three neck round bottom flask containing 106 grams of diethylene glycol of 500mL is added in five times by 196 grams of maleic anhydride, reacts
Temperature 50 C.Extent of reaction is monitored by gas-chromatography and TLC.Work as fully reacting, carries out second step reaction.By above-mentioned reaction
Two maleic acid monoesters and 184 grams of ethyl alcohol are under 15 grams of 15 catalyst actions of Amberlyst, 80 DEG C of reactions, with ethyl alcohol for water, TLC
Monitor extent of reaction.Work as fully reacting, filter out catalyst, removes excessive ethyl alcohol with vacuum distillation.The horse that above-mentioned reaction obtains
Carry out acid esters to be slowly added dropwise in excessive ring amine, temperature is 60 DEG C, and wait be added dropwise, reaction continues 8 at this temperature
Hour.Extent of reaction is monitored with TLC.When reaction is completed, vacuum distillation obtains poly-aspartic-acid except the ring amine of end removing reaction
About 520 grams of the performed polymer A of ester resin, yield 93.5%.
The present embodiment also provides a kind of coating, which includes poly- asparagus fern resin, and the raw material of the poly- asparagus fern resin includes
Asparagus fern polyureas performed polymer A.
Embodiment two:
The present embodiment proposes a kind of asparagus fern polyureas performed polymer B comprising following structural formula B:
The present embodiment also provides the preparation method of performed polymer B:
By 196 grams of the maleic anhydride three neck round bottom flask that the 500mL containing 104 grams of 1,5-PD is added secondary in five batches,
60 DEG C of reaction temperature.Extent of reaction is monitored by gas-chromatography and TLC.Work as fully reacting, carries out second step reaction.It will be above-mentioned anti-
Under 15 grams of Amberlyst35 catalyst actions, n-butanol is used in 117 DEG C of reactions for two maleic acid monoesters answered and 300 grams of n-butanols
Dai Shui, TLC monitor extent of reaction.Work as fully reacting, filter out catalyst, removes excessive n-butanol with vacuum distillation.It is above-mentioned anti-
The maleate that should be obtained is slowly added dropwise in excessive isobutyl amine, and temperature is 70 DEG C, and wait be added dropwise, reaction is at this temperature
Continue 8 hours.Extent of reaction is monitored with TLC.When reaction is completed, vacuum distillation obtains day except the isobutyl amine of end removing reaction
About 500 grams of winter polyureas performed polymer B, yield 89.6%.
The present embodiment also provides a kind of coating, which includes poly- asparagus fern resin, and the raw material of the poly- asparagus fern resin includes
Asparagus fern polyureas performed polymer B.
Embodiment three:
The present embodiment proposes a kind of asparagus fern polyureas performed polymer C comprising following structural formula:
The present embodiment also provides the preparation method of performed polymer C:
The three neck round bottom flask of 116 grams of Isosorbide-5-Nitrae-cyclohexandiol of 500mL is added in 196 grams of maleic anhydride in five batches, reaction
Temperature 60 C.Extent of reaction is monitored by gas-chromatography and TLC.Work as fully reacting, carries out second step reaction.By above-mentioned reaction
Two maleic acid monoesters and 184 grams of ethyl alcohol are under 15 grams of 35 catalyst actions of Amberlyst, 80 DEG C of reactions, with ethyl alcohol for water, TLC
Monitor extent of reaction.Work as fully reacting, filter out catalyst, removes excessive ethyl alcohol with vacuum distillation.The horse that above-mentioned reaction obtains
Carry out acid esters to be slowly added dropwise in excessive tert-butylamine, temperature is 80 DEG C, and wait be added dropwise, reaction continues 18 at this temperature
Hour.Extent of reaction is monitored with TLC.When reaction is completed, vacuum distillation obtains asparagus fern polyureas pre-polymerization except the tert-butylamine of end removing reaction
About 500 grams of body C, yield 97.3%.
The present embodiment also provides a kind of coating, which includes poly- asparagus fern resin, and the raw material of the poly- asparagus fern resin includes
Asparagus fern polyureas performed polymer C.
Example IV:
The present embodiment proposes a kind of asparagus fern polyureas performed polymer D comprising following structural formula:
The present embodiment also provides the preparation method of performed polymer D:
Three mouthfuls of circles of the 500mL of 212 grams of 4,4'- dihydroxyl dicyclohexyl methane are added in 196 grams of maleic anhydride in five batches
Bottom flask, 60 DEG C of reaction temperature.Extent of reaction is monitored by gas-chromatography and TLC.Work as fully reacting, carries out second step reaction.
By two maleic acid monoesters of above-mentioned reaction and 184 grams of ethyl alcohol under 30 grams of Amberlyst35 catalyst actions, 80 DEG C of reactions are used
Ethyl alcohol monitors extent of reaction for water, TLC.Work as fully reacting, filter out catalyst, removes excessive ethyl alcohol with vacuum distillation.It is above-mentioned
It reacts obtained maleate to be slowly added dropwise in excessive 2- methyl ring amine, temperature is 80 DEG C, and wait be added dropwise, reaction exists
Continue at a temperature of this 18 hours.Extent of reaction is monitored with TLC.When reaction is completed, vacuum distillation removes the 2- first of end removing reaction
Base ring amine obtains about 600 grams of asparagus fern polyureas performed polymer D, yield 87%.
The present embodiment also provides a kind of coating, which includes poly- asparagus fern resin, and the raw material of the poly- asparagus fern resin includes
Asparagus fern polyureas performed polymer D.
Embodiment five:
The present embodiment proposes a kind of asparagus fern polyureas performed polymer E comprising following structural formula:
The present embodiment also provides the preparation method of performed polymer E:
PEG200, the three neck round bottom flask of 200 grams of 500mL, reaction temperature 70 is added in 196 grams of maleic anhydride in five batches
℃.Extent of reaction is monitored by gas-chromatography and TLC.Work as fully reacting, carries out second step reaction.By two Malaysias of above-mentioned reaction
Acid monoester and 184 grams of ethyl alcohol are under 30 grams of 35 catalyst actions of Amberlyst, 80 DEG C of reactions, and with ethyl alcohol for water, TLC monitoring is anti-
Answer progress.Work as fully reacting, filter out catalyst, removes excessive ethyl alcohol with vacuum distillation.The maleate that above-mentioned reaction obtains
It is slowly added dropwise in excessive 2- methyl ring amine, temperature is 80 DEG C, and wait be added dropwise, reaction continues 18 at this temperature
Hour.Extent of reaction is monitored with TLC.When reaction is completed, it is poly- to obtain asparagus fern except the 2- methyl ring amine of end removing reaction for vacuum distillation
About 620 grams of urea performed polymer E, yield 87%.
The present embodiment also provides a kind of coating, which includes poly- asparagus fern resin, and the raw material of the poly- asparagus fern resin includes
Asparagus fern polyureas performed polymer E.
Embodiment six:
The present embodiment proposes a kind of asparagus fern polyureas performed polymer F comprising following structural formula:
The present embodiment also provides the preparation method of performed polymer F:
The three neck round bottom flask of 194 grams of tetraethylene glycol of 500mL, reaction temperature is added in 196 grams of maleic anhydride in five batches
70℃.Extent of reaction is monitored by gas-chromatography and TLC.Work as fully reacting, carries out second step reaction.By two horses of above-mentioned reaction
Come acid monoester and 184 grams of ethyl alcohol under 30 grams of 35 catalyst actions of Amberlyst, 80 DEG C of reactions, with ethyl alcohol for water, TLC monitoring
Extent of reaction.Work as fully reacting, filter out catalyst, removes excessive ethyl alcohol with vacuum distillation.The maleic acid that above-mentioned reaction obtains
Ester is slowly added dropwise into excessive 2,6- dimethyl cyclohexyl amine, and temperature is 80 DEG C, and wait be added dropwise, reaction continues at this temperature
It carries out 18 hours.Extent of reaction is monitored with TLC.When reaction is completed, vacuum distillation removes 2, the 6- dimethyl cyclohexyl amine of end removing reaction,
Obtain about 620 grams of asparagus fern polyureas performed polymer F, yield 88.6%.
The present embodiment also provides a kind of coating, which includes poly- asparagus fern resin, and the raw material of the poly- asparagus fern resin includes
Asparagus fern polyureas performed polymer F.
Experimental formula
By asparagus fern polyureas performed polymer D made from example IV, embodiment five, embodiment six, asparagus fern polyureas performed polymer E, day
Winter polyureas performed polymer F is respectively used to preparation embodiment seven, embodiment eight, nine coating of embodiment；With traditional asparagus fern polyureas pre-polymerization
Body G preparation comparison coating；Component included by each coating and content are as shown in table 1:
The component and content that the different coating of table 1 include
Wherein, traditional asparagus fern carbamide resin G structure is as follows:
It should be noted that component II is the mixture of three kinds of curing agent, wherein polyether-modified TDI class curing agent can
To improve the brittleness of film, the rate of drying of film is can be improved in HDI trimer curing agent, and polyester modification HDI class curing agent can
To extend the up time of coating and improve the elasticity of film.In use, both component I and component II can be directly according to weight
It is more independent than 2:1 to be used cooperatively.The preparation method of coating can refer to existing method and be prepared, and the present invention does not limit this
It is fixed.
Performance test
Now the coating of embodiment eight, embodiment nine and comparative formula is detected, wherein noxious material detection is complete
National standard is conformed to, other performance tests of coating are as shown in table 2 below.
The performance test results of the different coating of table 2
In conjunction with above-mentioned test data it is found that poly- asparagus fern resin made from asparagus fern polyureas performed polymer provided by the present invention, and
Further coating obtained is a kind of nontoxic, odorlessness product, and construction is simple is convenient in use process, and the construction time is up to
30-45 minutes, it is ensured that construction quality；And comparative example curing rate is too fast, the construction time only has a few minutes.
Good with ceramic tile surface adhesion force by coating produced by the present invention, rate of drying is fast.There is paint film after drying stretches well
Long rate tensile strength (elongation is significantly increased compared with traditional asparagus fern carbamide resin), is also not easy in wet condition for a long time
Mouldy, soil resistance is good, and wearability is good, and waterproof effect is good.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in some embodiment
Part, reference can be made to the related descriptions of other embodiments.
The above is a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, any ripe
It knows those skilled in the art in the technical scope disclosed by the present invention, various equivalent modifications can be readily occurred in or replaces
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection scope subject to.
Claims (10)
1. a kind of asparagus fern polyureas performed polymer, which is characterized in that comprise the following structure formula:
Wherein, R is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 and 20 or less；
R ' is linear carbon chain, cyclic carbon chain or straight chain ehter bond, and carbon atom number is 20 and 20 or less；
R1For low carbon chain alkyl or cyclic alkyl, carbon atom number is six or six or less.
2. the method for preparing asparagus fern polyureas performed polymer as described in claim 1, which comprises the following steps:
Maleic anhydride and dihydric alcohol are carried out alcoholysis reaction by equivalent proportion 2:1, generate two maleic acid binary alcohol esters by S1；
The two maleic acids binary alcohol esters and excessive alkylol are carried out esterification, obtain maleate, catalytic reaction by S2
Agent is Bronst acid, Lewis acid or solid acid catalyst；
The maleate and excessive bulky amine are carried out addition reaction, obtain the performed polymer by S3.
3. method according to claim 2, which is characterized in that the carbon-chain structure of the dihydric alcohol is linear carbon chain, cyclic annular carbon
Chain or straight chain ehter bond, carbon atom number is 20 or 20 or less；The bulky amine carbon-chain structure is linear carbon chain, cyclic carbon chain or straight chain
Ehter bond, carbon atom number is 20 or 20 or less.
4. method according to claim 2, which is characterized in that the alkylol is low carbon chain alkylol or cyclic alkyl
Alcohol, carbon atom number are six or six or less.
5. method according to claim 2, which is characterized in that the reaction temperature of the step S1 is -100 DEG C of room temperature.
6. method according to claim 2, which is characterized in that the reaction temperature of the step S2 is 65-120 DEG C.
7. method according to claim 2, which is characterized in that the reaction temperature of the step S3 is -80 DEG C of room temperature.
8. method as claimed in claim 4, which is characterized in that further include removing excessive alkylol before the step S3
Step.
9. method as claimed in claim 3, which is characterized in that further include removing excessive bulky amine after the step S3
The step of.
10. a kind of coating, which is characterized in that including poly- asparagus fern resin, the raw material of the poly- asparagus fern resin includes such as claim 1
The asparagus fern polyureas performed polymer.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111620789A (en) * | 2020-06-12 | 2020-09-04 | 深圳市前海博扬研究院有限公司 | Preparation method of aspartate resin |
| CN112552195A (en) * | 2020-12-11 | 2021-03-26 | 深圳飞扬兴业科技有限公司 | Preparation method of oligomeric asparagus resin |
| CN112778496A (en) * | 2020-12-30 | 2021-05-11 | 浙江艾特普科技有限公司 | PAE polyurea UV resin, synthetic method and coating composition prepared from PAE polyurea UV resin |
| CN114835598A (en) * | 2021-06-22 | 2022-08-02 | 深圳飞扬兴业科技有限公司 | Steric hindrance type di-secondary amine compound, preparation method and polyurea resin |
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