CN111647344A - Transfer coating - Google Patents

Transfer coating Download PDF

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Publication number
CN111647344A
CN111647344A CN202010560549.1A CN202010560549A CN111647344A CN 111647344 A CN111647344 A CN 111647344A CN 202010560549 A CN202010560549 A CN 202010560549A CN 111647344 A CN111647344 A CN 111647344A
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CN
China
Prior art keywords
component
parts
reaction kettle
polyoxyethylene ether
coating
Prior art date
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Pending
Application number
CN202010560549.1A
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Chinese (zh)
Inventor
戴茂滨
杜传国
孙洋
赵海旭
吴金元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei Lyuxin Environmental Protection Packaging Technology Co ltd
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Hubei Lyuxin Environmental Protection Packaging Technology Co ltd
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Priority to CN202010560549.1A priority Critical patent/CN111647344A/en
Publication of CN111647344A publication Critical patent/CN111647344A/en
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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
    • 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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
    • 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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
    • C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
    • 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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
    • 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
    • C08G18/70—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
    • 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
    • C08G18/70—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
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups

Abstract

The invention provides a transfer coating, which comprises a component A and a component B; the component A comprises, by weight, 65-78 parts of a poly (phthalic acid) polyol, 25-35 parts of neopentyl glycol polyoxyethylene ether polyol and 0.04-0.06 part of a coupling agent; the component B comprises, by weight, 23-29 parts of 3-isocyanatomethylene-3, 5, 5-trimethyl cyclohexyl isocyanate, 20-30 parts of polymethylene polyphenyl isocyanate and 45-60 parts of polyoxyethylene ether polyol; the weight ratio of the component A to the component B is 1-3: 1 to 5.

Description

Transfer coating
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of coatings, in particular to a transfer coating.
[ background of the invention ]
At present, the coating used in the industries of package printing, ornament, certificate manufacture and the like is water-based coating or oil-based coating. No matter the water paint or the oil paint is used, the paint must be dried in the manufacturing process, the whole process flow is complex, and a large amount of organic solvent can be volatilized. Some enterprises recycle and burn the organic solvent to utilize heat energy, some enterprises directly discharge the organic solvent to the atmosphere, whether the organic solvent is recycled or not, the emission of the organic solvent in the production process has great influence on human bodies, the environment is polluted, resources are wasted, power and energy are consumed in the drying process, the energy consumption is increased, the production cost is high, and the information layers made of the water-based paint and the oil-based paint have poor water resistance, solvent resistance and scuff resistance; the information layer is brittle, the film forming performance is poor after mould pressing, the defects are easily caused, and the laser anti-counterfeiting, character and pattern definition is poor.
In view of the above, there is a need to provide a novel transfer coating to overcome the above-mentioned drawbacks.
[ summary of the invention ]
The invention aims to provide a transfer coating which has good temperature resistance and abrasion resistance, so that when the application material is coated, written and printed, pictures and texts are clear, and the ornamental value during reading is improved.
In order to achieve the above object, the present invention provides a transfer coating material comprising an a-component and a B-component; the component A comprises, by weight, 65-78 parts of a poly (phthalic acid) polyol, 25-35 parts of neopentyl glycol polyoxyethylene ether polyol and 0.04-0.06 part of a coupling agent; the component B comprises, by weight, 23-29 parts of 3-isocyanatomethylene-3, 5, 5-trimethyl cyclohexyl isocyanate, 20-30 parts of polymethylene polyphenyl isocyanate and 45-60 parts of polyoxyethylene ether polyol; the weight ratio of the component A to the component B is 1-3: 1 to 5.
A preparation method of a transfer coating comprises the following steps,
s1: according to the weight, 65-78 parts of poly-phthalate ester polyol, 25-35 parts of neopentyl glycol polyoxyethylene ether polyol and 0.04-0.06 part of coupling agent are prepared;
s2: adding the prepared poly (phthalic acid) polyol and neopentyl glycol polyoxyethylene ether polyol into a reaction kettle, heating the materials in the reaction kettle to 115-125 ℃, and then carrying out vacuum dehydration for 4-6 hours at the temperature of 115-125 ℃ with the vacuum degree of- (8-1)0)×10-4MPa；
S3: after vacuum dehydration is finished, cooling the materials in the reaction kettle to 30-40 ℃, adding the coupling agent prepared in the step 3.1 into the reaction kettle, and uniformly stirring to obtain a component A;
s4: according to the weight, 23-29 parts of 3-isocyanatomethylene-3, 5, 5-trimethyl cyclohexyl isocyanate, 20-30 parts of polymethylene polyphenyl isocyanate and 45-60 parts of polyoxyethylene ether polyol are prepared;
s5, adding the prepared polyoxyethylene ether polyol into a reaction kettle, heating to 115-125 ℃, and then dehydrating in vacuum at 115-125 ℃ for 4-6 hours with the vacuum degree of- (8-10) × 10-4MPa；
S6: after vacuum dehydration is finished, cooling the ethylene oxide ether polyol in the reaction kettle to 81-84 ℃; then adding 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate and polymethylene polyphenyl isocyanate into a reaction kettle, reacting for 4-6 hours at 81-84 ℃, and stirring materials in the reaction kettle in the reaction process;
s7: after the reaction is finished, cooling the material in the reaction kettle to 30-40 ℃ to obtain a component B;
s8: mixing the component A and the component B, and stirring uniformly, wherein the mixing mass ratio is 1-3: 1 to 5.
Preferably, the stirring speed is 80-120 r/min.
Preferably, the stirring speed is 100 revolutions per minute.
Compared with the prior art, the transfer coating provided by the invention has the beneficial effects that: polyurethane is formed by addition polymerization reaction of-OH active groups contained in the component A and-NCO active groups contained in the component B; the-NCO active group and the-OH active group are both active groups, can react under the condition of normal temperature, do not need to be dried, and simplify the preparation process flow;
the polyester polyol and the polyether polyol in the component A are soft sections, so that the film forming property and elasticity of the coating can be improved, and the coating is oil-resistant, water-resistant and ageing-resistant; the water resistance can be further improved by adding the coupling agent;
the 3-isocyanato methylene-3, 5, 5-trimethyl cyclohexyl isocyanate and polymethylene polyphenyl isocyanate in the component B are hard sections, so that the hardness of the coating can be improved, the cohesion and the crosslinking effect are enhanced, and the coating has the characteristics of abrasion resistance, temperature resistance, oil resistance and difficult cracking; the polyether glycol provides flexibility and strength of the coating, improves heat resistance, elasticity and film forming property of the coating, further enables the picture and text to be clear when the application material is coated, written and printed, improves ornamental sensitivity during reading, generates few volatile organic compounds and is environment-friendly.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantageous effects of the present invention more apparent, the present invention is further described in detail with reference to the following detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated based on the orientation or positional relationship shown for ease of description and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. To those of ordinary skill in the art, the above terms may be specifically defined in the present invention according to the specific circumstances.
Furthermore, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature. Further, the meaning of "a plurality" or "a plurality" means two or more unless specifically limited otherwise.
The invention provides a transfer coating, which comprises a component A and a component B; the component A comprises, by weight, 65-78 parts of a poly (phthalic acid) polyol, 25-35 parts of neopentyl glycol polyoxyethylene ether polyol and 0.04-0.06 part of a coupling agent; the component B comprises, by weight, 23-29 parts of 3-isocyanatomethylene-3, 5, 5-trimethyl cyclohexyl isocyanate, 20-30 parts of polymethylene polyphenyl isocyanate and 45-60 parts of polyoxyethylene ether polyol; the weight ratio of the component A to the component B is 1-3: 1 to 5.
A preparation method of a transfer coating comprises the following steps,
s1: according to the weight, 65-78 parts of poly-phthalate ester polyol, 25-35 parts of neopentyl glycol polyoxyethylene ether polyol and 0.04-0.06 part of coupling agent are prepared;
s2, adding the prepared poly (phthalic acid) ester polyol and neopentyl glycol polyoxyethylene ether polyol into a reaction kettle, heating the materials in the reaction kettle to 115-125 ℃, and then carrying out vacuum dehydration at 115-125 ℃ for 4-6 hours with the vacuum degree of- (8-10) × 10-4MPa；
S3: after vacuum dehydration is finished, cooling the materials in the reaction kettle to 30-40 ℃, adding the coupling agent prepared in the step 3.1 into the reaction kettle, and uniformly stirring to obtain a component A;
s4: according to the weight, 23-29 parts of 3-isocyanatomethylene-3, 5, 5-trimethyl cyclohexyl isocyanate, 20-30 parts of polymethylene polyphenyl isocyanate and 45-60 parts of polyoxyethylene ether polyol are prepared;
s5, adding the prepared polyoxyethylene ether polyol into a reaction kettle, heating to 115-125 ℃, and then dehydrating in vacuum at 115-125 ℃ for 4-6 hours with the vacuum degree of- (8-10) × 10-4MPa；
S6: after vacuum dehydration is finished, cooling the ethylene oxide ether polyol in the reaction kettle to 81-84 ℃; adding 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate and polymethylene polyphenyl isocyanate into a reaction kettle, reacting for 4-6 hours at 81-84 ℃, and stirring materials in the reaction kettle in the reaction process to fully react the 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, the polymethylene polyphenyl isocyanate and polyoxyethylene ether polyol;
s7: after the reaction is finished, cooling the material in the reaction kettle to 30-40 ℃ to obtain a component B;
s8: mixing the component A and the component B, and stirring uniformly, wherein the mixing mass ratio is 1-3: 1 to 5.
Preferably, the stirring speed is 80-120 r/min.
Preferably, the stirring speed is 100 revolutions per minute.
Wherein the component A contains-OH active groups, the component B contains-NCO active groups and-OH active groups (the-OH active groups of the component B can generate addition polymerization reaction with partial-NCO active groups in the component B in advance), the component A contains-OH active groups, and polyurethane is formed by the addition polymerization reaction of the-OH active groups and the rest-NCO active groups of the component B; the-NCO active group and the-OH active group are active groups, can react at normal temperature, and can form a tough coating only by a certain curing time without heating and drying, IR (infrared radiation) irradiation or UV (ultraviolet) irradiation. In the preparation process, heating and drying are not needed, so that the preparation process flow is simplified, and the safety is high.
Specifically, polyester polyol and polyether polyol in the component A are soft segments, and-OH active groups are provided to react with-NCO active groups in the component B, so that the film forming property and elasticity of a coating can be improved, and the coating is oil-resistant, water-resistant and ageing-resistant; the polyoxyethylene ether polyol can improve the crosslinking degree and improve the strength of the coating; the coupling agent can also improve the crosslinking degree and the water resistance, and simultaneously, the tightness during stripping is controlled by adjusting the dosage.
Specifically, 3-isocyanato methylene-3, 5, 5-trimethyl cyclohexyl isocyanate (IPDI) and polymethylene polyphenyl isocyanate (PAPI) in the component B are hard segments, and an-NCO active group is provided to react with an-OH active group of polyether polyol, so that the hardness of the coating is improved, the cohesion and the crosslinking effect are enhanced, and the coating has the characteristics of wear resistance, temperature resistance, oil resistance and difficult cracking; the polyether glycol provides flexibility and strength of the coating, increases the crosslinking degree, and improves the heat resistance, elasticity and film forming property of the coating.
Specifically, the stirring speed of the component A and the stirring speed of the component B are both 80-120 revolutions per minute, and further, the stirring speed of the component A and the stirring speed of the component B are both 100 revolutions per minute.
Example 1
In this embodiment, the preparation method of the transfer coating sequentially includes the following steps:
preparation of component A
Preparing 30 parts of a poly-phthalate polyol, 24 parts of a poly-phthalate polyol with the average molecular weight of 1750, 16 parts of a poly-phthalate polyol with the average molecular weight of 1500, 33 parts of neopentyl glycol polyoxyethylene ether polyol and 0.055 part of a coupling agent, wherein the coupling agent is siloxane;
adding the prepared poly-phthalate ester polyol and neopentyl glycol polyoxypropylene ether polyol into a reaction kettle, heating the materials in the reaction kettle to 120 ℃, and then carrying out vacuum dehydration for 4 hours at the temperature of 120 ℃ with the vacuum degree of-8 × 10-4MPa；
After vacuum dehydration is finished, cooling the materials in the reaction kettle to 30 ℃; then adding the prepared coupling agent into a reaction kettle, and uniformly stirring to obtain a component A;
preparation of component B
Preparing 23 parts of 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, 20 parts of polymethylene polyphenyl isocyanate, 10 parts of polyoxyethylene ether polyol with the average molecular weight of 420, 10 parts of polyoxyethylene ether polyol with the average molecular weight of 1000 and 25 parts of polyoxyethylene ether polyol with the average molecular weight of 2300;
prepared polyoxyethylene ether polyolAdding 45 parts of polyoxyethylene ether polyol into a reaction kettle, heating the polyoxyethylene ether polyol to 115 ℃, and then dehydrating the polyoxyethylene ether polyol at the temperature of 115 ℃ in vacuum for 4 hours with the vacuum degree of-8 × 10-4MPa；
After vacuum dehydration is finished, cooling the materials in the reaction kettle to 81 ℃; then adding 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate and polymethylene polyphenyl isocyanate into a reaction kettle, reacting for 4 hours at 82 ℃, and stirring (the stirring speed is 100 revolutions per minute) to fully react the 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, the polymethylene polyphenyl isocyanate and polyoxyethylene ether polyol;
after the reaction is finished, cooling the materials in the reaction kettle to 30 ℃ to obtain the component B, and packaging.
Respectively storing the component A and the component B;
mixing the component A and the component B according to the proportion of 1: 1, stirring until the mixture is uniformly mixed to obtain a transfer coating, and coating by using the transfer coating at the coating speed of 280 m/min; the coating weight of the transfer coating is 1.3g/m2After the coating, the coating was aged for 16 hours to cure the transfer coating.
Example 2
In this embodiment, the preparation method of the transfer coating sequentially includes the following steps:
the preparation method of the component A is the same as that of the component A in the example 1;
preparation of B2 component
Preparing 25 parts of 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, 22 parts of polymethylene polyphenyl isocyanate, 12 parts of polyoxyethylene ether polyol with the average molecular weight of 420, 12 parts of polyoxyethylene ether polyol with the average molecular weight of 1000 and 25 parts of polyoxyethylene ether polyol with the average molecular weight of 2300;
adding 49 parts of prepared polyoxyethylene ether polyol into a reaction kettle, heating the polyoxyethylene ether polyol to 118 ℃, and then dehydrating in vacuum at 118 ℃ for 5 hours at the vacuum degree of-8.5 × 10-4MPa；
After vacuum dehydration is finished, cooling the materials in the reaction kettle to 82 ℃; then adding 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate and polymethylene polyphenyl isocyanate into a reaction kettle, reacting for 4 hours at 82 ℃, and stirring (the stirring speed is 100 revolutions per minute) to fully react the 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, the polymethylene polyphenyl isocyanate and polyoxyethylene ether polyol;
after the reaction is finished, cooling the materials in the reaction kettle to 32 ℃ to obtain the component B, and packaging.
Respectively storing the component A and the component B;
mixing the component A and the component B according to the proportion of 1: 1, stirring the mixture until the mixture is uniformly mixed to obtain a transfer coating, and coating the transfer coating at the coating speed of 280 m/min; the coating weight of the transfer coating is 1.3g/m2After the coating, the coating was aged for 16 hours to cure the transfer coating.
Example 3
In this embodiment, the preparation method of the transfer coating sequentially includes the following steps:
the preparation of component A was the same as in example 1
Preparation of component B
Preparing 25 parts of 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, 22 parts of polymethylene polyphenyl isocyanate, 14 parts of polyoxyethylene ether polyol with the average molecular weight of 420, 14 parts of polyoxyethylene ether polyol with the average molecular weight of 1000 and 25 parts of polyoxyethylene ether polyol with the average molecular weight of 2300;
adding 53 parts of prepared polyoxyethylene ether polyol into a reaction kettle, heating the polyoxyethylene ether polyol to 120 ℃, and then dehydrating in vacuum at 120 ℃ for 5 hours with the vacuum degree of-8.5 × 10-4MPa；
After vacuum dehydration is finished, cooling the materials in the reaction kettle to 82 ℃; then adding 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate and polymethylene polyphenyl isocyanate into a reaction kettle, reacting for 4 hours at 82 ℃, and stirring (the stirring speed is 100 revolutions per minute) to fully react the 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, the polymethylene polyphenyl isocyanate and polyoxyethylene ether polyol;
after the reaction is finished, cooling the materials in the reaction kettle to 32 ℃ to obtain the component B, and packaging.
Respectively storing the component A and the component B;
mixing the component A and the component B according to the proportion of 1: 1, stirring the mixture until the mixture is uniformly mixed to obtain the required transfer coating, and coating the transfer coating at the coating speed of 280 m/min; the coating weight of the transfer coating is 1.3g/m2After the completion of the coating, the coating was aged for 16 hours to cure the transfer paint coat 3.
Example 4
In this embodiment, the preparation method of the transfer coating sequentially includes the following steps:
the preparation method of the component A is the same as that of the component A in the example 1;
preparation of component B
Preparing 25 parts of 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, 22 parts of polymethylene polyphenyl isocyanate, 16 parts of polyoxyethylene ether polyol with the average molecular weight of 420, 16 parts of polyoxyethylene ether polyol with the average molecular weight of 1000 and 25 parts of polyoxyethylene ether polyol with the average molecular weight of 2300;
adding 57 parts of prepared polyoxyethylene ether polyol into a reaction kettle, heating the polyoxyethylene ether polyol to 122 ℃, and then dehydrating in vacuum at the temperature of 122 ℃ for 5 hours with the vacuum degree of-8.5 × 10-4MPa；
After vacuum dehydration is finished, cooling the materials in the reaction kettle to 83 ℃; then adding 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate and polymethylene polyphenyl isocyanate into a reaction kettle, reacting for 5 hours at 83 ℃, and stirring (the stirring speed is 100 revolutions per minute) to fully react the 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, the polymethylene polyphenyl isocyanate and polyoxyethylene ether polyol;
after the reaction is finished, cooling the materials in the reaction kettle to 33 ℃ to obtain the component B, and packaging.
Respectively storing the component A and the component B;
mixing the component A and the component B according to the proportion of 1: 1, stirring the mixture until the mixture is uniformly mixed to obtain a transfer coating, and coating the transfer coating at the coating speed of 280 m/min; the coating weight of the transfer coating is 1.3g/m2After the completion of the coating, the coating was aged for 16 hours to cure the transfer paint coat 4.
Example 5
In this embodiment, the preparation method of the transfer coating sequentially includes the following steps:
the preparation method of the component A is the same as that of the component A in the example 1;
preparation of component B
Preparing 29 parts of 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, 30 parts of polymethylene polyphenyl isocyanate, 20 parts of polyoxyethylene ether polyol with the average molecular weight of 420, 20 parts of polyoxyethylene ether polyol with the average molecular weight of 1000 and 20 parts of polyoxyethylene ether polyol with the average molecular weight of 2300;
adding 60 parts of prepared polyoxyethylene ether polyol into a reaction kettle, heating the polyoxyethylene ether polyol to 125 ℃, and then dehydrating in vacuum at 125 ℃ for 6 hours with the vacuum degree of-8.5 × 10-4MPa；
After vacuum dehydration is finished, cooling the materials in the reaction kettle to 84 ℃; then adding 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate and polymethylene polyphenyl isocyanate into a reaction kettle, reacting for 6 hours at 84 ℃, and stirring (the stirring speed is 100 revolutions per minute) to fully react the 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate, the polymethylene polyphenyl isocyanate and polyoxyethylene ether polyol;
after the reaction is finished, cooling the materials in the reaction kettle to 40 ℃ to obtain the component B, and packaging.
Respectively storing the component A and the component B;
mixing the component A and the component B according to the proportion of 1: 1, and stirring until the mixture is uniformly mixed to obtain a transfer coating, wherein the coating speed is 280m/min when the transfer coating is adopted for coating; the coating weight of the transfer coating is 1.3g/m2After the coating, the coating was aged for 16 hours to cure the transfer coating.
And (3) testing temperature: the coating samples are respectively laminated with an aluminum layer by a five-point heat sealing instrument, the pressure is 130kpa, the time is 3S, and the specific temperature of the aluminum layer whitening is recorded.
Scratch resistance test: the coating samples were subjected to a scuff test using a scuff meter and the specific number of large areas of the coating scratched was recorded.
Organic solvent volatilization test: and (4) detecting VOCs (volatile organic compounds) of the coating by using a gas chromatograph, and recording the total amount of VOCs.
The test data is shown in table 1 below,
table 1:
temperature resistance/DEG C Rub resistance/time VOCs
EXAMPLE 1 coating of paint 150 25 ＜3.0
EXAMPLE 2 paint coating 140 20 ＜3.0
Example 3 coating of paint 135 18 ＜3.0
EXAMPLE 4 paint coating 135 15 ＜3.0
EXAMPLE 5 paint coating 120 10 ＜3.0
As shown in Table 1, the coatings prepared in examples 1-5 all have the temperature resistance of 120 ℃ or higher and the scratch resistance of 10 times or higher, and the coatings prepared in examples 1-5 all contain polyether polyol, so that the coatings have good temperature resistance and scratch resistance, and the generated volatile organic compounds are all below 3.0, and have little environmental pollution.
In conclusion, the coatings prepared in the embodiments 1 to 5 of the present invention have good temperature resistance and scratch resistance, so that when the coatings prepared in the embodiments 1 to 5 of the present invention are applied for writing and printing, the patterns and texts are clear, and the ornamental perception during reading is improved.
The invention is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the invention is not limited to the specific details, representative apparatus, and examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims (4)

1. A transfer coating comprising an a component and a B component; the component A comprises, by weight, 65-78 parts of a poly (phthalic acid) polyol, 25-35 parts of neopentyl glycol polyoxyethylene ether polyol and 0.04-0.06 part of a coupling agent; the component B comprises, by weight, 23-29 parts of 3-isocyanatomethylene-3, 5, 5-trimethyl cyclohexyl isocyanate, 20-30 parts of polymethylene polyphenyl isocyanate and 45-60 parts of polyoxyethylene ether polyol; the weight ratio of the component A to the component B is 1-3: 1 to 5.
2. A preparation method of a transfer coating is characterized by comprising the following steps,
s1: according to the weight, 65-78 parts of poly-phthalate ester polyol, 25-35 parts of neopentyl glycol polyoxyethylene ether polyol and 0.04-0.06 part of coupling agent are prepared;
s2, adding the prepared poly (phthalic acid) ester polyol and neopentyl glycol polyoxyethylene ether polyol into a reaction kettle, heating the materials in the reaction kettle to 115-125 ℃, and then carrying out vacuum dehydration at 115-125 ℃ for 4-6 hours with the vacuum degree of- (8-10) × 10-4MPa；
S3: after vacuum dehydration is finished, cooling the materials in the reaction kettle to 30-40 ℃, adding the coupling agent prepared in the step 3.1 into the reaction kettle, and uniformly stirring to obtain a component A;
s4: according to the weight, 23-29 parts of 3-isocyanatomethylene-3, 5, 5-trimethyl cyclohexyl isocyanate, 20-30 parts of polymethylene polyphenyl isocyanate and 45-60 parts of polyoxyethylene ether polyol are prepared;
s5, adding the prepared polyoxyethylene ether polyol into a reaction kettle, heating to 115-125 ℃, and then dehydrating in vacuum at 115-125 ℃ for 4-6 hours with the vacuum degree of- (8-10) × 10-4MPa；
S6: after vacuum dehydration is finished, cooling the ethylene oxide ether polyol in the reaction kettle to 81-84 ℃; then adding 3-isocyanatomethylene-3, 5, 5-trimethylcyclohexyl isocyanate and polymethylene polyphenyl isocyanate into a reaction kettle, reacting for 4-6 hours at 81-84 ℃, and stirring materials in the reaction kettle in the reaction process;
s7: after the reaction is finished, cooling the material in the reaction kettle to 30-40 ℃ to obtain a component B;
s8: mixing the component A and the component B, and stirring uniformly, wherein the mixing mass ratio is 1-3: 1 to 5.
3. The transfer coating of claim 2, wherein the agitation speed is from 80 to 120 revolutions per minute.
4. The transfer coating of claim 3 wherein the agitation speed is 100 revolutions per minute.
CN202010560549.1A 2020-06-18 2020-06-18 Transfer coating Pending CN111647344A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007016193A (en) * 2005-07-11 2007-01-25 Asahi Kasei Chemicals Corp Aqueous crosslinkable coating composition
CN106554712A (en) * 2016-11-15 2017-04-05 汕头市鑫源化工科技有限公司 A kind of manufacture method of transfer membrane
US9616675B2 (en) * 2007-03-01 2017-04-11 Seiko Epson Corporation Ink set, ink-jet recording method, and recorded material
CN107531864A (en) * 2015-04-24 2018-01-02 3M创新有限公司 Two parts polyurethane anti-corrosive paints

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007016193A (en) * 2005-07-11 2007-01-25 Asahi Kasei Chemicals Corp Aqueous crosslinkable coating composition
US9616675B2 (en) * 2007-03-01 2017-04-11 Seiko Epson Corporation Ink set, ink-jet recording method, and recorded material
CN107531864A (en) * 2015-04-24 2018-01-02 3M创新有限公司 Two parts polyurethane anti-corrosive paints
CN106554712A (en) * 2016-11-15 2017-04-05 汕头市鑫源化工科技有限公司 A kind of manufacture method of transfer membrane

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Application publication date: 20200911