CN108164678A - A kind of soybean oil base water polyurethane of UV curable and preparation method thereof - Google Patents
A kind of soybean oil base water polyurethane of UV curable and preparation method thereof Download PDFInfo
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- CN108164678A CN108164678A CN201711396718.7A CN201711396718A CN108164678A CN 108164678 A CN108164678 A CN 108164678A CN 201711396718 A CN201711396718 A CN 201711396718A CN 108164678 A CN108164678 A CN 108164678A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6696—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38
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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
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
Abstract
Soybean oil base water polyurethane the invention discloses a kind of UV curable and preparation method thereof, the present invention substitute the part material in aqueous polyurethane with modified soybean oil, improve the feature of environmental protection of material.This technology acrylated epoxy soybean oil, acrylated epoxidized soybean oil (AESO) obtained contains the hydroxyl of 2 or more, aqueous polyurethane is prepared with it, the polyurethane molecular with certain cross-linked network structure can be prepared, so as to improve the hardness of aqueous polyurethane film, tensile strength, water resistance and thermal stability.This technology prepares aqueous polyurethane with AESO, and because AESO contains activated double bonds, by the use of AESO as polyols preparation aqueous polyurethane, which can further UV cure, and the cured aqueous polyurethane films of UV have higher hardness and water resistance.
Description
Technical field
The present invention relates to the soybean oil base water polyurethanes and its system of technical field of chemistry more particularly to a kind of UV curable
Preparation Method.
Background technology
Aqueous polyurethane is the polyurethane resin using water as dispersant, because its is nontoxic, pollution-free, does not burn, energy saving, safe
It is reliable to wait the advantages of prominent, traditional solvent type polyurethane resin is just gradually replaced in coating and adhesive field.But single water
Property polyurethane there are the shortcomings that intensity is low, poor water resistance, not high heat resistance on it is applied.Exist for single aqueous polyurethane
The problem of, people expand a large amount of study on the modification, and the relevant technologies have developed rapidly, and the aqueous polyurethane of UV curable is exactly wherein
A kind of technology.UV solidfication water polyurethanes can solve water-based emulsion by UV curing system (rear curing, post-crosslinking) and send out
The contradiction of polymer molecular weight, crosslink density and stability of emulsion in the bottleneck problem of exhibition, i.e. lotion makes the mechanicalness of polymer
It can be further improved.
Its raw material of traditional polyurethane material is mainly derived from petrochemical industry.And oil is a kind of non-renewable resources, with
That oil price continues the attention of surging, global warming and people to environmental protection, and oil is substituted as change using renewable resource
The raw material of chemical product and high molecular material will be the trend of inevitable development.Therefore many researchs are conceived to using plant in recent years
Object oil, particularly epoxidized soybean oil prepares aqueous polyurethane as raw material or modifying agent.Using epoxidized soybean oil as modifying agent,
Additive amount is less, the feature of environmental protection of urethane raw is improved limited.Aqueous polyurethane is prepared using epoxidized soybean oil as raw material, it is main
If carrying out ring-opening reaction to the epoxy group of epoxidized soybean oil using alcohol or amine substance, hydroxyl soybean oil is made, this
Aqueous polyurethane prepared by a little methods still has the problem of mechanical strength is insufficient.
To solve the above problems, the present invention prepares the aqueous poly- of UV curable using a kind of novel modified epoxy soybean oil
Urethane resin prepares aqueous polyurethane using acrylated epoxidized soybean oil as part polyol starting material.Using propylene
Acid is reacted with epoxidized soybean oil, and hydroxyl and acrylate-based can be introduced on soybean oil strand, water is prepared as polyalcohol
Property polyurethane, acrylate-based on soybean oil strand may participate in subsequent UV curing reactions, further improve polymer
The degree of cross linking is so as to improve its mechanical strength.Thus a kind of based on plant resources, the water of the UV curable of function admirable is prepared
Property polyurethane resin.
Invention content
The soybean oil base that the purpose of the present invention is that solve the above-mentioned problems and provides a kind of UV curable is aqueous poly-
Urethane and preparation method thereof.
The present invention is achieved through the following technical solutions above-mentioned purpose：
The method comprises the steps of firstly, preparing modified soybean oil, i.e. acrylated epoxidized soybean oil (AESO), then by the use of AESO as
Part polyols preparation aqueous polyurethane；The aqueous polyurethane UV curable
The preparation method of acrylated epoxidized soybean oil (AESO) is as follows：
Under catalyst action, using epoxidized soybean oil as raw material, using acrylic acid as Ring Opening Reagent, acrylic acid is big with epoxy
The epoxy group reaction of soya-bean oil, hydroxyl and acrylate-based can be introduced on soybean oil strand, can be prepared into soybean in this way
Oil polyalcohol, while introduce activated double bonds.Acrylic acid and catalyst are added in four-hole boiling flask by a certain percentage, condensing reflux liter
Temperature adds in polymerization inhibitor stirring half an hour, starts that epoxidized soybean oil is slowly added dropwise, about 30min is added dropwise to 80-90 DEG C.Heating
To 100-120 DEG C, isothermal reaction 4-6 hours can prepare acrylated epoxidized soybean oil (AESO).
In the preparation of above-mentioned AESO, the catalyst can be triphenylphosphine, antimony triphenyl, N, N- dimethyl benzylamines, three
Ethamine, triethylene diamine etc..The dosage of catalyst is between 0.5%-3%.
In the preparation of above-mentioned AESO, the polymerization inhibitor can be hydroquinone, 4- metoxyphenols, polymerization inhibitor 701, inhibition
Agent 705 etc..The dosage of polymerization inhibitor is between 0.1%-0.5%.
The dosage of epoxidized soybean oil is 100 parts by weight in the preparation of above-mentioned AESO, the dosage of acrylic acid can be 18~
30 parts by weight.
The preparation of the soybean oil base water polyurethane is synthesized to obtain by the component of following parts by weight：
The preparation method of the soybean oil base water polyurethane is as follows：
(1) according to formula rate by acrylated epoxidized soybean oil (AESO), hydrophilic chain extender dihydromethyl propionic acid
(DMPA), polyoxypropyleneglycol (PPG-2000), N-Methyl pyrrolidone (NMP) and polymerization inhibitor are added in four-hole boiling flask, are risen
Temperature is arrived at 60-65 DEG C and is stirred 1 hour so that reactant viscosity declines, convenient for reaction.
(2) isophorone diisocyanate (IPDI) is added in and then into flask, after being warming up to 70-80 DEG C of reaction 1 hour,
Catalyst dibutyltin dilaurylate (T-12) is added, the reaction was continued 2 hours, obtains base polyurethane prepolymer for use as.Period pays attention to seeing
The viscosity of reactant is examined, if there is rod climbing phenomenon, acetone can be added in right amount to adjust viscosity.
(3) after obtaining performed polymer, 40 DEG C are cooled in the state of stirring, triethylamine (TEA) is added in and neutralizes, continue to stir
30-60min。
(4) thermometer is observed, when temperature drops to 30 DEG C, distilled water is added in, accelerates mixing speed, stir 30-60min,
Performed polymer is made to be fully dispersed in water, aqueous polyurethane is made.
Above-mentioned aqueous polyurethane can spontaneous curing, also photocurable.
The beneficial effects of the present invention are：
The present invention is soybean oil base water polyurethane of a kind of UV curable and preparation method thereof, compared with prior art,
The present invention substitutes the part material in aqueous polyurethane with modified soybean oil, improves the feature of environmental protection of material.This technology is with third
Olefin(e) acid modified epoxy soybean oil, acrylated epoxidized soybean oil (AESO) obtained are prepared containing the hydroxyl of 2 or more with it
Aqueous polyurethane can prepare the polyurethane molecular with certain cross-linked network structure, be applied so as to improve aqueous polyurethane
Hardness, tensile strength, water resistance and the thermal stability of film.This technology prepares aqueous polyurethane with AESO, because AESO contains vivaciously
Double bond, the aqueous polyurethane can further UV cure, and the cured aqueous polyurethane films of UV have higher hardness and water resistance.
Specific embodiment
The invention will be further described below：
The method comprises the steps of firstly, preparing modified soybean oil, i.e. acrylated epoxidized soybean oil (AESO), then by the use of AESO as
Part polyols preparation aqueous polyurethane；The aqueous polyurethane UV curable
The preparation method of acrylated epoxidized soybean oil (AESO) is as follows：
Under catalyst action, using epoxidized soybean oil as raw material, using acrylic acid as Ring Opening Reagent, acrylic acid is big with epoxy
The epoxy group reaction of soya-bean oil, hydroxyl and acrylate-based can be introduced on soybean oil strand, can be prepared into soybean in this way
Oil polyalcohol, while introduce activated double bonds.Acrylic acid and catalyst are added in four-hole boiling flask by a certain percentage, condensing reflux liter
Temperature adds in polymerization inhibitor stirring half an hour, starts that epoxidized soybean oil is slowly added dropwise, about 30min is added dropwise to 80-90 DEG C.Heating
To 100-120 DEG C, isothermal reaction 4-6 hours can prepare acrylated epoxidized soybean oil (AESO).
In the preparation of above-mentioned AESO, the catalyst can be triphenylphosphine, antimony triphenyl, N, N- dimethyl benzylamines, three
Ethamine, triethylene diamine etc..The dosage of catalyst is between 0.5%-3%.
In the preparation of above-mentioned AESO, the polymerization inhibitor can be hydroquinone, 4- metoxyphenols, polymerization inhibitor 701, inhibition
Agent 705 etc..The dosage of polymerization inhibitor is between 0.1%-0.5%.
The dosage of epoxidized soybean oil is 100 parts by weight in the preparation of above-mentioned AESO, the dosage of acrylic acid can be 18~
30 parts by weight.
The preparation of the soybean oil base water polyurethane is synthesized to obtain by the component of following parts by weight：
The preparation method of the soybean oil base water polyurethane is as follows：
(1) according to formula rate by acrylated epoxidized soybean oil (AESO), hydrophilic chain extender dihydromethyl propionic acid
(DMPA), polyoxypropyleneglycol (PPG-2000), N-Methyl pyrrolidone (NMP) and polymerization inhibitor are added in four-hole boiling flask, are risen
Temperature is arrived at 60-65 DEG C and is stirred 1 hour so that reactant viscosity declines, convenient for reaction.
(2) isophorone diisocyanate (IPDI) is added in and then into flask, after being warming up to 70-80 DEG C of reaction 1 hour,
Catalyst dibutyltin dilaurylate (T-12) is added, the reaction was continued 2 hours, obtains base polyurethane prepolymer for use as.Period pays attention to seeing
The viscosity of reactant is examined, if there is rod climbing phenomenon, acetone can be added in right amount to adjust viscosity.
(3) after obtaining performed polymer, 40 DEG C are cooled in the state of stirring, triethylamine (TEA) is added in and neutralizes, continue to stir
30-60min。
(4) thermometer is observed, when temperature drops to 30 DEG C, distilled water is added in, accelerates mixing speed, stir 30-60min,
Performed polymer is made to be fully dispersed in water, aqueous polyurethane is made.
Above-mentioned aqueous polyurethane can spontaneous curing, also photocurable.
Embodiment 1
27 parts of acrylic acid and 1.2 parts of triphenylphosphines is taken to add in four-hole boiling flask, condensing reflux is warming up to 80-90 DEG C, adds in
0.15 part of 4- metoxyphenol stirs half an hour, starts that 100 parts of epoxidized soybean oils are slowly added dropwise, about 30min is added dropwise.Heating
To 100-120 DEG C, isothermal reaction 5 hours can prepare acrylated epoxidized soybean oil (AESO), and conversion ratio is up to 96%.
Embodiment 2
Example 1 prepare 30 parts of AESO, 9.5 parts, PPG-200070 parts, NMP16 parts of hydrophilic chain extender DMPA and
0.15 part of 4- metoxyphenols are added in four-hole boiling flask, are warming up at 60-65 DEG C and are stirred 1 hour so that and reactant viscosity declines,
Convenient for reaction.Then into flask add in 50 parts of IPDI, be warming up to 70-80 DEG C reaction 1 hour after, add catalyst T-
120.45 parts, the reaction was continued 2 hours, obtains base polyurethane prepolymer for use as.Period pays attention to the viscosity of observing response object, shows if there is pole-climbing
As acetone can be added in right amount to adjust viscosity.After obtaining performed polymer, 40 DEG C are cooled in the state of stirring, adds in TEA
6.5 parts of neutralizations continue to stir 30-60min.Thermometer is observed, when temperature drops to 30 DEG C, 370 parts of distilled water is added in, accelerates to stir
Speed is mixed, 30-60min is stirred, performed polymer is made to be fully dispersed in water, aqueous polyurethane is made.The aqueous polyurethane is yellowish
The translucent lotion of color, viscosity 66.5mPa.s, centrifugal stability test show that the stability of emulsion of the aqueous polyurethane is more than 6
A month.
The film that aqueous polyurethane spontaneous curing prepared by embodiment 2 obtains, adhesive force are 0 grade, pencil hardness 2H, are drawn
Intensity is stretched for 10.3MPa.
In 100 parts of the aqueous polyurethane prepared to embodiment 2,2.5 parts of photoinitiator 2959 is added in, after UV cures
To film, adhesive force is 0 grade, pencil hardness 3H, tensile strength 17.3MPa.
It can be seen that its spontaneous curing film of the aqueous polyurethane of the preparation of embodiment 2 has good mechanical performance；Apply the preparation of example 2
Aqueous polyurethane is after UV cures, and compared with spontaneous curing, the hardness higher of film, tensile strength significantly improves.
Basic principle of the invention and main feature and advantages of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of soybean oil base water polyurethane of UV curable and preparation method thereof, it is characterised in that：It prepares first modified big
Soya-bean oil, i.e. acrylated epoxidized soybean oil, it is then aqueous by the use of acrylated epoxidized soybean oil as part polyols preparation
Polyurethane；The aqueous polyurethane UV curable,
The preparation method of acrylated epoxidized soybean oil is as follows：
Under catalyst action, using epoxidized soybean oil as raw material, using acrylic acid as Ring Opening Reagent, acrylic acid and epoxidized soybean oil
Epoxy group reaction, hydroxyl and acrylate-based can be introduced on soybean oil strand, it is more soybean oil can be prepared into this way
First alcohol, while introduce activated double bonds.Acrylic acid and catalyst are added in four-hole boiling flask by a certain percentage, condensing reflux is warming up to
80-90 DEG C, polymerization inhibitor stirring half an hour is added in, starts that epoxidized soybean oil is slowly added dropwise, about 30min is added dropwise.It is warming up to
100-120 DEG C, isothermal reaction 4-6 hours can prepare acrylated epoxidized soybean oil；
The preparation of the soybean oil base water polyurethane is synthesized to obtain by the component of following parts by weight：
The preparation of soybean oil base water polyurethane：
(1) according to formula rate by acrylated epoxidized soybean oil (AESO), hydrophilic chain extender dihydromethyl propionic acid (DMPA),
Polyoxypropyleneglycol (PPG-2000), N-Methyl pyrrolidone (NMP) and polymerization inhibitor are added in four-hole boiling flask, are warming up to 60-
It is stirred 1 hour at 65 DEG C so that reactant viscosity declines, convenient for reaction.
(2) isophorone diisocyanate (IPDI) is added in and then into flask, after being warming up to 70-80 DEG C of reaction 1 hour, then is added
Enter catalyst dibutyltin dilaurylate (T-12), the reaction was continued 2 hours, obtains base polyurethane prepolymer for use as.Period notices that observation is anti-
The viscosity of object is answered, if there is rod climbing phenomenon, acetone can be added in right amount to adjust viscosity.
(3) after obtaining performed polymer, 40 DEG C are cooled in the state of stirring, triethylamine (TEA) is added in and neutralizes, continues to stir 30-
60min。
(4) thermometer is observed, when temperature drops to 30 DEG C, distilled water is added in, accelerates mixing speed, stir 30-60min, make pre-
Aggressiveness is fully dispersed in water, and aqueous polyurethane is made.
2. soybean oil base water polyurethane of UV curable according to claim 1 and preparation method thereof, it is characterised in that：
The catalyst is triphenylphosphine, antimony triphenyl, N, one kind in N- dimethyl benzylamines, triethylamine, triethylene diamine, catalyst
Dosage between 0.5%-3%.
3. soybean oil base water polyurethane of UV curable according to claim 1 and preparation method thereof, it is characterised in that：
The polymerization inhibitor is hydroquinone, one kind in 4- metoxyphenols, polymerization inhibitor 701, polymerization inhibitor 705, and the dosage of polymerization inhibitor is
Between 0.1%-0.5%.
4. soybean oil base water polyurethane of UV curable according to claim 1 and preparation method thereof, it is characterised in that：
The dosage of the epoxidized soybean oil is 100 parts, and the dosage of acrylic acid can be 18~27 parts.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914694A (en) * | 2018-07-24 | 2018-11-30 | 裴文韬 | A kind of preparation method of Study of Paper-Strengthening Agent Based |
| CN112409565A (en) * | 2020-11-11 | 2021-02-26 | 华南理工大学 | Bio-based odorless aqueous UV (ultraviolet) curing polyurethane acrylate aqueous dispersion as well as preparation method and application thereof |
| CN112812253A (en) * | 2021-01-06 | 2021-05-18 | 东北林业大学 | Epoxy soybean oil-based water-based PUA resin emulsion, UV LED (ultraviolet light-emitting diode) curing film and preparation method |
| CN117003989A (en) * | 2023-08-07 | 2023-11-07 | 广州佐晟化妆品有限公司 | Epoxidized soybean oil-based acrylic ester-polyurethane UV light-cured resin and plant oil-based nail polish gel prepared from same and containing no TPO light initiator |
| CN117363199A (en) * | 2023-10-12 | 2024-01-09 | 东莞市瑞盟涂料有限公司 | Dual-curable polyurethane coating and preparation method thereof |
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| CN106832196A (en) * | 2016-12-15 | 2017-06-13 | 湖北大学 | A kind of preparation method of soybean oil base water polyurethane light-cured resin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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