CN106117541B - Inorganic hybridization melamine resin polytetrahydrofuran diol and preparation method thereof - Google Patents
Inorganic hybridization melamine resin polytetrahydrofuran diol and preparation method thereof Download PDFInfo
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- CN106117541B CN106117541B CN201610627151.9A CN201610627151A CN106117541B CN 106117541 B CN106117541 B CN 106117541B CN 201610627151 A CN201610627151 A CN 201610627151A CN 106117541 B CN106117541 B CN 106117541B
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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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/337—Polymers modified by chemical after-treatment with organic compounds containing other elements
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/50—Polyethers having heteroatoms other than oxygen
- C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
- C08G18/5054—Polyethers having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring
- C08G18/5063—Polyethers having heteroatoms other than oxygen having nitrogen containing heterocyclic rings having at least one nitrogen atom in the ring containing three nitrogen atoms in the ring
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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
- C09D175/08—Polyurethanes from polyethers
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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
- C08G2101/00—Manufacture of cellular products
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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
- C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G2650/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterized by the type of post-polymerisation functionalisation
- C08G2650/04—End-capping
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Abstract
The invention belongs to inorganic hybridization technical field of polymer materials, in particular to a kind of inorganic hybridization melamine resin polytetrahydrofuran diol and preparation method thereof.It mainly comprises the steps that (1) etherification reaction, hexamethylolmelamine is added into reaction kettle and methanol carries out insulation reaction；(2) alkali neutralization；(3) hydridization is reacted；(4) cold filtration；(5) ether exchange reaction；(6) distillation removes remaining methanol and obtains finished product.Inorganic hybridization melamine resin polytetrahydrofuran diol made from the method through the invention, by being reacted with the hybrid cross-linked of inorganic hybridization compound, so that the melamine resin polytetrahydrofuran diol ultimately generated introduces the heat-resistant fireproofs element such as boron, molybdenum, antimony, to improve the high temperature resistance and flame retardant property of melamine resin polytetrahydrofuran diol, which are mainly applied to prepare combined polyether and paint.
Description
Technical field
The invention belongs to inorganic hybridization technical field of polymer materials, in particular to a kind of inorganic hybridization melamine resin
Polytetrahydrofuran diol with and preparation method thereof.
Background technique
Since amino resins has certain heat resistance, so in many fields, including coating industry, furniture industry,
Polyurethane industries among others etc. have application.But applied on the polyurethane material of high fire-retardance, high temperature resistance still has centainly
Gap.
Due to the special construction of polyurethane foam plastics molecule, determine that it is easy the characteristic of burning, non-refractory.With
The continuous popularization and application of polyurethane energy-saving heat preserving hard bubble application technology, the requirement to its flame retardant property is also higher and higher, especially
The promulgation of GB8624~2012 " Classification on burning behaviour for building materials " and GB50016~2014 " Code for fire protection design of buildings "
After implementation, polyurethane foam is conveniently faced with acid test in fire retardant performance.Therefore, the resistance to of amino resins how is improved
High temperature and flame retardant property are at urgent technical problem to be solved in the field.
Summary of the invention
In order to solve the above problems existing in the present technology, it is poly- that the present invention provides a kind of inorganic hybridization melamine resins
Erythritan and preparation method thereof under the conditions of acid medium, is reacted using hexamethylolmelamine as raw material with methanol
Tetramethyl etherified melamine polyimide resin or five methyl-etherified melamine resins are generated, then are reacted with inorganic hybridization compound, it is raw
Ether exchange reaction is carried out at inorganic hybridization etherified melamine polyimide resin, then with polytetrahydrofuran diol, generates inorganic hybridization trimerization
Melamine resin polytetrahydrofuran diol, flame retardant property and high temperature resistance with higher.
The technical solution adopted in the present invention is as follows:
Inorganic hybridization melamine resin polytetrahydrofuran diol, it is characterised in that: molecular structure is as follows:
X in the molecular structure is inorganic hybridization element, including one of B or Sb.
The preparation method of the inorganic hybridization melamine resin polytetrahydrofuran diol, it is characterised in that: main packet
Include following steps:
Under the conditions of acid medium, hexamethylolmelamine and methanol carry out the melamine that etherification reaction is etherified
Resin；Under agitation plus alkali carries out alkali neutralization reaction；
The melamine resin of etherificate is carried out hydridization with inorganic hybridization compound to react under conditions of 100~110 DEG C
0.5~2 hour, first alcohol and water is steamed, inorganic hybridization etherified melamine polyimide resin is obtained by filtration after being cooled to 60~80 DEG C；
Polytetrahydrofuran diol is added in inorganic hybridization etherified melamine polyimide resin and acid carries out at 100~120 DEG C
Ether exchange reaction, distillation remove remaining methanol to get inorganic hybridization melamine resin polytetrahydrofuran diol is arrived.
The preparation method of the inorganic hybridization melamine resin polytetrahydrofuran diol, it is characterised in that: including with
Lower specific steps:
(1) etherification reaction
Hexamethylolmelamine and methanol are added into reaction kettle, adding acid for adjusting pH is 2.5~5.5, at 35~65 DEG C
Under conditions of, mixing speed is 60~80 revs/min, and 30~120min of heat preservation carries out etherification reaction, obtains etherified melamine amine
Resin；
(2) alkali neutralization
It is stirred under the conditions of 40~80 revs/min of revolving speed, adding alkali to adjust pH is 8.0~9.0, which keeps temperature
Degree is lower than 50 DEG C；
(3) hydridization is reacted
Inorganic hybridization compound and water are added into reaction kettle, is warming up to 100~110 DEG C and reacts 0.5~2 hour, 80
Under conditions of~100 DEG C, normal pressure steams methanol, is 0.090~0.095MPa item in vacuum degree under conditions of 100~110 DEG C
Water is steamed under part, until water content reaches 0.5% or less；
(4) cold filtration
60~80 DEG C are cooled to, 2%~2.5% super-cell is added, filters out salt with filter, obtains inorganic miscellaneous
Change etherified melamine polyimide resin；
(5) ether exchange reaction
One in addition polytetrahydrofuran diol and hydrochloric acid, nitric acid, phosphoric acid, sulfuric acid, oxalic acid, formic acid or terephthalic acid (TPA)
Kind acid carries out ether exchange reaction, the methanol of generation is constantly steamed under normal pressure at 100~120 DEG C, until the methanol that metering steams
Quality reaches theoretical amount, and ether exchange is completed；
(6) distillation removes remaining methanol
Under conditions of 0.090~0.1MPa of vacuum degree, 95~120 DEG C of temperature, the methanol of remaining is steamed, room is cooled to
Temperature to get arrive inorganic hybridization melamine resin polytetrahydrofuran diol.
The preparation method of the inorganic hybridization melamine resin polytetrahydrofuran diol, it is characterised in that: the step
Suddenly the inorganic hybridization compound in (3) are as follows: Boratex, potassium borate, boric acid, zinc borate, boron phosphate, four water, eight Boratex, three oxygen
Change one of two antimony, antimony pentoxide, sodium molybdate, potassium molybdate, zinc molybdate, ammonium molybdate, ammonium tetramolybdate or ammonium heptamolybdate.
The preparation method of the inorganic hybridization melamine resin polytetrahydrofuran diol, it is characterised in that: the step
Suddenly acid used in pH is adjusted as hydrochloric acid or nitric acid in (1) or step (2), mass concentration is 31~36%, and alkali used is hydroxide
Sodium, sodium carbonate, sodium bicarbonate, potassium hydroxide or potassium carbonate, mass concentration are 25~35%.
The application of the inorganic hybridization melamine resin polytetrahydrofuran diol, it is characterised in that: described inorganic miscellaneous
Change melamine resin polytetrahydrofuran diol and be used to prepare combined polyether, the combined polyether includes use for hard bubble of polyurethane combination
Polyethers, polyurethane semihard foam combined polyether, soft polyurethane foam combined polyether.
The application of the inorganic hybridization melamine resin polytetrahydrofuran diol, it is characterised in that: described inorganic miscellaneous
Change melamine resin polytetrahydrofuran diol and be used to prepare paint, the paint includes alkyd paint coating, gathers
Urethane paint, epoxy resin paint coating, acrylic paint coating, amino paint.
The inorganic hybridization reaction principle of the invention patent:
The principle reacted can be crosslinked with boron, molybdenum, antimony element using the methylol contained on compound, realize this hair
The hydridization reaction process of bright patent eliminates reactive group because enclosing methylol, and the temperature in reaction process can be substantially
Degree is improved to 110 DEG C, and boron, molybdenum, antimony ignition-proof element are introduced on molecular structure, so that the stability of product, flame retardant property
It is substantially improved with high temperature resistance.
Above-mentioned technical proposal of the invention compared with prior art, has the advantage that
1, it is reacted by the melamine resin of etherificate with the hybrid cross-linked of inorganic hybridization compound, so that ultimately generate
Melamine resin polytetrahydrofuran diol introduces the heat-resistant fireproofs element such as boron, antimony, molybdenum, so that it is poly- to improve amino resins
The high temperature resistance and flame retardant property of erythritan, compared with the resin before non-hydridization, high temperature resistance improves 50 DEG C
More than, flame retardant property improves at least 20%.
2, the preparation of the inorganic hybridization melamine resin polytetrahydrofuran diol overcomes polytetrahydrofuran diol molecule
Structure introduces the technical problem of ignition-proof element, solves influence and fire-retardant effect of the outer addition fire retardant to product physical mechanical property
The technical problems such as fruit is undesirable.
3, heat-resistant fireproof melamine resin polytetrahydrofuran two is prepared into this heat-resistant fireproof melamine resin
Alcohol is reacted with isocyanates MDI, the inorganic hybridization polyurethane with melamine foamed material excellent physical properties of formation, and intensity is high,
Not hair powder, not modification are fully achieved that the standard of GB50404~2007 is waterproof thermal-insulated and B1 grades of the standard of GB8624~2012 fire-retardant are wanted
It asks.While guaranteeing physical property, excellent fireproof performance, oxygen index (OI) is greater than 30%.
4, since prepared melamine resin polytetrahydrofuran diol has high flame resistance and high temperature resistance, institute
Not need to keep foam cost big using expensive high fire-retardance phosphate flame retardant when producing polyurethane foam with it
For reduction, reduce 30% or more, economy is more reasonable.
Specific embodiment
The present invention will be described in detail combined with specific embodiments below, but the invention is not limited to specific embodiments.
Embodiment 1
The preparation of boron hydridization melamine resin polytetrahydrofuran diol
Molecular structural formula:
(1) etherification reaction
Hexamethylolmelamine and methanol are added in reaction kettle, adding acid for adjusting pH is 2.5, under conditions of 35 DEG C,
Mixing speed is 60 revs/min, and heat preservation 120min carries out etherification reaction, obtains etherified melamine polyimide resin；
(2) alkali neutralization
It is stirred under the conditions of 40 revs/min of revolving speed, adding alkali to adjust pH is 8.0, which keeps temperature to be lower than 50
℃；
(3) hydridization is reacted
Four water, eight Boratex and water are added into reaction kettle, is warming up to 100 DEG C of reactions 2 hours, under conditions of 80 DEG C, often
Pressure steam methanol, under conditions of 100 DEG C, vacuum degree be 0.090MPa under the conditions of steam water, until water content reach 0.5% with
Under；
(4) cold filtration
60 DEG C are cooled to, 2% super-cell is added, filters out salt with filter, obtains boron hydridization etherified melamine
Polyimide resin；
(5) ether exchange reaction
Polytetrahydrofuran diol and hydrochloric acid is added, at 100 DEG C, carries out ether exchange reaction, constantly steams generation under normal pressure
Methanol, until the methanol quality that steams of metering reaches theoretical amount, ether exchange is completed；
(6) distillation removes remaining methanol
Under conditions of vacuum degree 0.090MPa, 95 DEG C of temperature, the methanol of remaining is steamed, is cooled to room temperature to get boron is arrived
Hydridization melamine resin polytetrahydrofuran diol.
Embodiment 2
The preparation of stilba melamine resin polytetrahydrofuran diol
Molecular structural formula:
(1) etherification reaction
Hexamethylolmelamine and methanol are added in reaction kettle, adding acid for adjusting pH is 5.5, under conditions of 65 DEG C,
Mixing speed is 80 revs/min, and heat preservation 30min carries out etherification reaction, obtains etherified melamine polyimide resin；
(2) alkali neutralization
It is stirred under the conditions of 80 revs/min of revolving speed, adding alkali to adjust pH is 9.0, which keeps temperature to be lower than 50
℃；
(3) hydridization is reacted
Antimony oxide and water are added into reaction kettle, is warming up to 110 DEG C and reacts 0.5 hour, under conditions of 100 DEG C,
Normal pressure steams methanol, under conditions of 110 DEG C, water is steamed under the conditions of vacuum degree is 0.095MPa, until water content reaches 0.5%
Below；
(4) cold filtration
80 DEG C are cooled to, 2.5% super-cell is added, filters out salt with filter, obtains stilbaization etherificate trimerization
Melamine resin；
(5) ether exchange reaction
Polytetrahydrofuran diol and nitric acid is added, at 120 DEG C, carries out ether exchange reaction, constantly steams generation under normal pressure
Methanol, until the methanol quality that steams of metering reaches theoretical amount, ether exchange is completed；
(6) distillation removes remaining methanol
Under conditions of vacuum degree 0.1MPa, 120 DEG C of temperature, the methanol of remaining is steamed, is cooled to room temperature to get stilba is arrived
Change melamine resin polytetrahydrofuran diol.
Embodiment 3
The preparation of molybdenum hydridization melamine resin polytetrahydrofuran diol
Molecular structural formula:
Raw material proportioning:
(1) etherification reaction
Hexamethylolmelamine and methanol are added in reaction kettle, adding acid for adjusting pH is 3.5, under conditions of 45 DEG C,
Mixing speed is 60 revs/min, and heat preservation 90min carries out etherification reaction, obtains etherified melamine polyimide resin；
(2) alkali neutralization
It is stirred under the conditions of 50 revs/min of revolving speed, adding alkali to adjust pH is 8.6, which keeps temperature to be lower than 50
℃；
(3) hydridization is reacted
Sodium molybdate and water are added into reaction kettle, is warming up to 108 DEG C and reacts 1 hour, under conditions of 90 DEG C, normal pressure is steamed
Methanol steams water under the conditions of vacuum degree is 0.090MPa, until water content reaches 0.5% or less under conditions of 100 DEG C；
(4) cold filtration
65 DEG C are cooled to, 2% super-cell is added, filters out salt with filter, obtains molybdenum hydridization etherified melamine
Polyimide resin；
(5) ether exchange reaction
Polytetrahydrofuran diol and oxalic acid is added, at 105 DEG C, carries out ether exchange reaction, constantly steams generation under normal pressure
Methanol, until the methanol quality that steams of metering reaches theoretical amount, ether exchange is completed；
(6) distillation removes remaining methanol
Under conditions of vacuum degree 0.1MPa, 100 DEG C of temperature, the methanol of remaining is steamed, is cooled to room temperature to get miscellaneous to molybdenum
Change melamine resin polytetrahydrofuran diol.
Embodiment 4
The preparation of boron hydridization melamine resin polytetrahydrofuran diol
Molecular structural formula:
(1) etherification reaction
Hexamethylolmelamine and methanol are added in reaction kettle, adding salt acid for adjusting pH is 3.5, in 50 DEG C of condition
Under, mixing speed is 70 revs/min, and heat preservation 90min carries out etherification reaction, obtains etherified melamine polyimide resin；
(2) alkali neutralization
It is stirred under the conditions of 50 revs/min of revolving speed, adding alkali to adjust pH is 8.6, which keeps temperature to be lower than 50
℃；
(3) hydridization is reacted
Four water, eight Boratex and water are added into reaction kettle, is warming up to 100 DEG C of reactions 1 hour, under conditions of 90 DEG C, often
Pressure steam methanol, under conditions of 100 DEG C, vacuum degree be 0.090MPa under the conditions of steam water, until water content reach 0.5% with
Under；
(4) cold filtration
75 DEG C are cooled to, 2.5% super-cell is added, filters out salt with filter, obtains boron hydridization etherificate trimerization
Melamine resin；
(5) ether exchange reaction
Polytetrahydrofuran diol and terephthalic acid (TPA) is added, at 110 DEG C, carries out ether exchange reaction, is constantly steamed under normal pressure
The methanol being born, until the methanol quality that metering steams reaches theoretical amount, ether exchange is completed；
(6) distillation removes remaining methanol
Under conditions of vacuum degree 0.1MPa, 105 DEG C of temperature, the methanol of remaining is steamed, is cooled to room temperature to get miscellaneous to boron
Change melamine resin polytetrahydrofuran diol.
Embodiment 5
The preparation of molybdenum hydridization melamine resin polytetrahydrofuran diol
Molecular structural formula:
(1) etherification reaction
Hexamethylolmelamine and methanol are added in reaction kettle, adding nitre acid for adjusting pH is 5.0, in 50 DEG C of condition
Under, mixing speed is 65 revs/min, and heat preservation 110min carries out etherification reaction, obtains etherified melamine polyimide resin；
(2) alkali neutralization
It is stirred under the conditions of 65 revs/min of revolving speed, adding sodium bicarbonate to adjust pH is 8.2, which keeps temperature
Lower than 50 DEG C；
(3) hydridization is reacted
Sodium molybdate and water are added into reaction kettle, is warming up to 105 DEG C and reacts 1 hour, under conditions of 90 DEG C, normal pressure is steamed
Methanol steams water under the conditions of vacuum degree is 0.095MPa, until water content reaches 0.5% or less under conditions of 105 DEG C；
(4) cold filtration
60 DEG C are cooled to, 2% super-cell is added, filters out salt with filter, obtains molybdenum hydridization etherified melamine
Polyimide resin；
(5) ether exchange reaction
Polytetrahydrofuran diol and formic acid is added, at 105 DEG C, carries out ether exchange reaction, constantly steams generation under normal pressure
Methanol, until the methanol quality that steams of metering reaches theoretical amount, ether exchange is completed；
(6) distillation removes remaining methanol
Under conditions of vacuum degree 0.1MPa, 110 DEG C of temperature, the methanol of remaining is steamed, is cooled to room temperature to get miscellaneous to molybdenum
Change melamine resin polytetrahydrofuran diol.
Claims (5)
1. inorganic hybridization melamine resin polytetrahydrofuran diol, it is characterised in that: molecular structure is as follows:
X in the molecular structure is inorganic hybridization element, is selected from one of B or Sb.
2. the preparation method of inorganic hybridization melamine resin polytetrahydrofuran diol as described in claim 1, feature exist
In: it mainly comprises the steps that
(1) etherification reaction
Hexamethylolmelamine and methanol are added into reaction kettle, adding acid for adjusting pH is 2.5~5.5, in 35~65 DEG C of item
Under part, mixing speed is 60~80 revs/min, and 30~120min of heat preservation carries out etherification reaction, obtains etherified melamine polyimide resin；
(2) alkali neutralization
It is stirred under the conditions of 40~80 revs/min of revolving speed, adding alkali to adjust pH is 8.0~9.0, which keeps temperature low
In 50 DEG C；
(3) hydridization is reacted
Inorganic hybridization compound and water are added into reaction kettle, is warming up to 100~110 DEG C and reacts 0.5~2 hour, 80~100
Under conditions of DEG C, normal pressure steams methanol, under conditions of 100~110 DEG C, under the conditions of vacuum degree is 0.090~0.095MPa
Water is steamed, until water content reaches 0.5% or less；
Inorganic hybridization compound in the step (3) are as follows: in four water, eight Boratex, antimony oxide, sodium molybdate or Boratex
One kind；
(4) cold filtration
60~80 DEG C are cooled to, 2%~2.5% super-cell is added, filters out salt with filter, obtains inorganic hybridization ether
Change melamine resin；
(5) ether exchange reaction
One of polytetrahydrofuran diol and hydrochloric acid, nitric acid, phosphoric acid, sulfuric acid, oxalic acid, formic acid or terephthalic acid (TPA) acid is added,
At 100~120 DEG C, ether exchange reaction is carried out, the methanol of generation is constantly steamed under normal pressure, until the methanol quality that metering steams reaches
To theoretical amount, ether exchange is completed；
(6) distillation removes remaining methanol
Under conditions of 0.090~0.1MPa of vacuum degree, 95~120 DEG C of temperature, the methanol of remaining is steamed, is cooled to room temperature, i.e.,
Obtain inorganic hybridization melamine resin polytetrahydrofuran diol.
3. the preparation method of inorganic hybridization melamine resin polytetrahydrofuran diol according to claim 2, feature
Be: it is hydrochloric acid or nitric acid that acid used in pH is adjusted in the step (1) or step (2), and mass concentration is 31~36%, used
Alkali is sodium hydroxide, sodium carbonate, sodium bicarbonate, potassium hydroxide or potassium carbonate, and mass concentration is 25~35%.
4. the application of inorganic hybridization melamine resin polytetrahydrofuran diol according to claim 1, it is characterised in that:
The inorganic hybridization melamine resin polytetrahydrofuran diol is used to prepare combined polyether, and the combined polyether is selected from polyurethane
Hard bubble combined polyether, polyurethane semihard foam combined polyether, soft polyurethane foam combined polyether.
5. the application of inorganic hybridization melamine resin polytetrahydrofuran diol according to claim 1, it is characterised in that:
The inorganic hybridization melamine resin polytetrahydrofuran diol is used to prepare paint, and the paint is selected from alkyd oil
It paints coating, high concentrations of toluene diisocyanate coating, epoxy resin and paints coating, acrylic paint coating, amino paint.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712749A (en) * | 2009-11-19 | 2010-05-26 | 中国科学院广州化学研究所 | Silicon nitride hybridization type epoxy resin curing agent and preparation method and application thereof |
| CN104725584A (en) * | 2015-03-26 | 2015-06-24 | 嘉兴市杭星精细化工有限公司 | Production technique of water-soluble methyl ether melamine resin |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712749A (en) * | 2009-11-19 | 2010-05-26 | 中国科学院广州化学研究所 | Silicon nitride hybridization type epoxy resin curing agent and preparation method and application thereof |
| CN104725584A (en) * | 2015-03-26 | 2015-06-24 | 嘉兴市杭星精细化工有限公司 | Production technique of water-soluble methyl ether melamine resin |
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