CN110358250A - A kind of high-moisture-retention melamine foamed plastic and preparation method thereof - Google Patents
A kind of high-moisture-retention melamine foamed plastic and preparation method thereof Download PDFInfo
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- CN110358250A CN110358250A CN201910740283.6A CN201910740283A CN110358250A CN 110358250 A CN110358250 A CN 110358250A CN 201910740283 A CN201910740283 A CN 201910740283A CN 110358250 A CN110358250 A CN 110358250A
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- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2361/32—Modified amine-aldehyde condensateS
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Abstract
The invention belongs to melamine technical fields, more particularly to a kind of high-moisture-retention melamine foamed plastic and preparation method thereof, the high-moisture-retention melamine foamed plastic is made of following raw material: 30-50 parts of melamine, 180-250 parts of formaldehyde, 3-8 parts of basic catalyst, 4-9 parts of curing agent, 22-28 parts of foaming agent, 3-8 parts of emulsifier, 10-20 parts of polyvinyl alcohol, 5-10 parts of chitosan, 0.1-0.5 parts of ammonium persulfate, 0.03-0.05 parts of sodium hydrogensulfite, N, N, 1-5 parts of-methylene acrylamide, 100-200 parts and quaternary ammonium salt 1-5 parts of water；Melamine foamed plastic water-retaining property of the present invention is excellent, while preparation method is simple.
Description
Technical field
The invention belongs to melamine technical field more particularly to a kind of high-moisture-retention melamine foamed plastic and its preparation sides
Method.
Background technique
Melamine foamed plastic is a kind of novel foamed plastic with high opening rate, three-dimensional net structure, is had sound absorption properties
The performances such as energy, flame retardant property, heat-proof quality, water suction-water retention property, hydrothermal stability and secondary operation, thus have extensive
Application field, and at present about melamine foamed plastic water retention property research report it is less.
Summary of the invention
In order to solve the above-mentioned technical problem the present invention provides a kind of melamine foamed plastic that water-retaining property is excellent, while the side of preparation
Method is simple and easy.
The technical scheme to solve the above technical problems is that a kind of high-moisture-retention melamine foamed plastic, by following
Raw material is made: 30-50 parts of melamine, 180-250 parts of formaldehyde, 3-8 parts of basic catalyst, 4-9 parts of curing agent, foaming
22-28 parts of agent, 3-8 parts of emulsifier, 10-20 parts of polyvinyl alcohol, 5-10 parts of chitosan, 0.1-0.5 parts of ammonium persulfate, bisulfite
0.03-0.05 parts of sodium, N, N, 1-5 parts of-methylene acrylamide, 100-200 parts and quaternary ammonium salt 1-5 parts of water.
Based on the above technical solution, the present invention can also be improved as follows.
As further preferably high-moisture-retention melamine foamed plastic of the invention, it is made of following raw material: melamine
30 parts of amine, 180 parts of formaldehyde, 3 parts of basic catalyst, 4 parts of curing agent, 22 parts of foaming agent, 3 parts of emulsifier, 10 parts of polyvinyl alcohol, shell
5 parts of glycan, 0.1 part of ammonium persulfate, 0.03 part of sodium hydrogensulfite, N, N, 1 part of-methylene acrylamide, 100 parts of water and quaternary ammonium salt
1 part.
As further preferably high-moisture-retention melamine foamed plastic of the invention, it is made of following raw material: melamine
40 parts of amine, 210 parts of formaldehyde, 5 parts of basic catalyst, 7 parts of curing agent, 25 parts of foaming agent, 5 parts of emulsifier, 15 parts of polyvinyl alcohol, shell
7 parts of glycan, 0.3 part of ammonium persulfate, 0.04 part of sodium hydrogensulfite, N, N, 3 parts of-methylene acrylamide, 150 parts of water and quaternary ammonium salt
3 parts.
As further preferably high-moisture-retention melamine foamed plastic of the invention, it is made of following raw material: melamine
50 parts of amine, 250 parts of formaldehyde, 8 parts of basic catalyst, 9 parts of curing agent, 28 parts of foaming agent, 8 parts of emulsifier, 20 parts of polyvinyl alcohol, shell
10 parts of glycan, 0.5 part of ammonium persulfate, 0.05 part of sodium hydrogensulfite, N, N, 5 parts of-methylene acrylamide, 200 parts of water and quaternary ammonium
5 parts of salt.
Further preferably as the present invention, the basic catalyst is sodium hydroxide or potassium hydroxide.
Further preferably as the present invention, the curing agent is boric acid or glutamic acid.
Further preferably as the present invention, the foaming agent is one in sodium bicarbonate, sodium carbonate, pentane and n-hexane
Kind or several mixtures.
Further preferably as the present invention, the emulsifier is alkylbenzene sulfonate, alkyl phenol polyoxyethylene ether, benzylphenol
The mixture of one or more of polyoxyethylene ether, phenethyl phenol polyethenoxy ether and alkylnaphthalene sulfonate.
Further preferably as the present invention, the quaternary ammonium salt is dodecyl trimethyl ammonium bromide, trimethyl
The mixture of one or more of ammonium chloride and cetyl trimethyl ammonium fluoride.
The present invention also provides a kind of preparation methods of high-moisture-retention melamine foamed plastic, comprising the following steps:
A, weighed by following raw material: 30-50 parts of melamine, 180-250 parts of formaldehyde, 3-8 parts of basic catalyst,
4-9 parts of curing agent, 22-28 parts of foaming agent, 3-8 parts of emulsifier, 10-20 parts of polyvinyl alcohol, 5-10 parts of chitosan, ammonium persulfate
0.1-0.5 parts, 0.03-0.05 parts of sodium hydrogensulfite, N, N, 1-5 parts of-methylene acrylamide, 100-200 parts of water and quaternary ammonium salt
1-5 parts；
B, by melamine, formaldehyde, basic catalyst and quaternary ammonium salt, under the conditions of 90-100 DEG C of temperature, 40- is reacted
50min obtains melamine performed polymer；
C, by polyvinyl alcohol, chitosan, ammonium persulfate, sodium hydrogensulfite, N, N ,-methylene acrylamide and water,
It is mixed under 500-800rpm stirring condition, and controlling pH value is 7.1-7.8, then under the conditions of 90-100 DEG C of temperature, reacts 3-
4h obtains gelinite；
D, by the melamine performed polymer that step B is obtained and gelinite and curing agent, foaming agent, cream that step C is obtained
Agent stirs and evenly mixs, and obtains mixture, and mixture is placed in microwave oven, and under the conditions of 200-280 DEG C of temperature, foam 8-
14min is to get high-moisture-retention melamine foamed plastic.
The beneficial effects of the present invention are: hydrophilic radical quaternary ammonium salt is mixed in melamine performed polymer in product of the present invention,
Polyvinyl alcohol and chitosan are hydrophilic compounds, and polyvinyl alcohol and chitosan crosslinked copolymerization form gel structure, then with melamine
Amine performed polymer is composite foamed, and obtained melamine foamed plastic has efficient water retention property.
Specific embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
A, it is weighed by following weight raw material: melamine 30g, formaldehyde 180g, basic catalyst 3g, curing agent 4g, foaming
Agent 22g, emulsifier 3g, polyvinyl alcohol 10g, chitosan 5g, ammonium persulfate 0.1g, sodium hydrogensulfite 0.03g, N, N ,-methylene
Acrylamide 1g, water 100g and quaternary ammonium salt 1g；
B, by melamine, formaldehyde, basic catalyst and quaternary ammonium salt, under the conditions of 90 DEG C of temperature, 40min is reacted, is obtained
Melamine performed polymer；
C, by polyvinyl alcohol, chitosan, ammonium persulfate, sodium hydrogensulfite, N, N ,-methylene acrylamide and water,
It is mixed under 500rpm stirring condition, and controlling pH value is 7.1, then under the conditions of 90 DEG C of temperature, reacts 3h, obtains gelinite；
D, by the melamine performed polymer that step B is obtained and gelinite and curing agent, foaming agent, cream that step C is obtained
Agent stirs and evenly mixs, and obtains mixture, and mixture is placed in microwave oven, and under the conditions of 200 DEG C of temperature, foam 8min, i.e.,
Obtain high-moisture-retention melamine foamed plastic.
The basic catalyst is sodium hydroxide, and the curing agent is glutamic acid, and the foaming agent is sodium bicarbonate, described
Emulsifier is alkylbenzene sulfonate, and the quaternary ammonium salt is dodecyl trimethyl ammonium bromide.
The melamine foamed plastic density that embodiment 1 is prepared is 4.3kg/m3, for 24 hours, water absorption rate reaches for water suction
41610%, free percentage of water loss is 76.27%, and conventional melamine is (by melamine and formaldehyde, basic catalyst, foaming
Agent is made) water absorption rate is 18792.68% under equal conditions, percentage of water loss 96.46%.
Embodiment 2
A, it is weighed by following weight raw material: melamine 40g, formaldehyde 210g, basic catalyst 5g, curing agent 7g, foaming
Agent 25g, emulsifier 5g, polyvinyl alcohol 15g, chitosan 7g, ammonium persulfate 0.3g, sodium hydrogensulfite 0.04g, N, N ,-methylene
Acrylamide 3g, water 150g and quaternary ammonium salt 3g；
B, by melamine, formaldehyde, basic catalyst and quaternary ammonium salt, under the conditions of 95 DEG C of temperature, 45min is reacted, is obtained
Melamine performed polymer；
C, by polyvinyl alcohol, chitosan, ammonium persulfate, sodium hydrogensulfite, N, N ,-methylene acrylamide and water,
It is mixed under 650rpm stirring condition, and controlling pH value is 7.5, then under the conditions of 95 DEG C of temperature, reacts 3.5h, obtains gel
Body；
D, by the melamine performed polymer that step B is obtained and gelinite and curing agent, foaming agent, cream that step C is obtained
Agent stirs and evenly mixs, and obtains mixture, and mixture is placed in microwave oven, and under the conditions of 240 DEG C of temperature, foam 11min, i.e.,
Obtain high-moisture-retention melamine foamed plastic.
The basic catalyst is potassium hydroxide, and the curing agent is boric acid, and the foaming agent is sodium carbonate, the emulsification
Agent is alkyl phenol polyoxyethylene ether, and the quaternary ammonium salt is dodecyl trimethyl ammonium chloride.
The melamine foamed plastic density that embodiment 2 is prepared is 4.8kg/m3, for 24 hours, water absorption rate reaches for water suction
42816%, free percentage of water loss is 74.67%, and conventional melamine is (by melamine and formaldehyde, basic catalyst, foaming
Agent is made) water absorption rate is 18792.68% under equal conditions, percentage of water loss 96.46%.
Embodiment 3
A, it is weighed by following weight raw material: melamine 50g, formaldehyde 250g, basic catalyst 8g, curing agent 9g, foaming
Agent 28g, emulsifier 8g, polyvinyl alcohol 20g, chitosan 10g, ammonium persulfate 0.5g, sodium hydrogensulfite 0.05g, N, N ,-methylene
Acrylamide 5g, water 200g and quaternary ammonium salt 5g；
B, by melamine, formaldehyde, basic catalyst and quaternary ammonium salt, under the conditions of 100 DEG C of temperature, 50min is reacted, is obtained
Melamine performed polymer；
C, by polyvinyl alcohol, chitosan, ammonium persulfate, sodium hydrogensulfite, N, N ,-methylene acrylamide and water,
It is mixed under 800rpm stirring condition, and controlling pH value is 7.8, then under the conditions of 100 DEG C of temperature, reacts 4h, obtains gelinite；
D, by the melamine performed polymer that step B is obtained and gelinite and curing agent, foaming agent, cream that step C is obtained
Agent stirs and evenly mixs, and obtains mixture, and mixture is placed in microwave oven, and under the conditions of 280 DEG C of temperature, foam 14min, i.e.,
Obtain high-moisture-retention melamine foamed plastic.
The basic catalyst is potassium hydroxide, and the curing agent is glutamic acid, and the foaming agent is pentane, the cream
Agent is Ben-zylphenol Polyoxyethyl Ether, and the quaternary ammonium salt is cetyl trimethyl ammonium fluoride.
The melamine foamed plastic density that embodiment 3 is prepared is 5.1kg/m3, for 24 hours, water absorption rate reaches for water suction
40954%, free percentage of water loss is 74.36%, and conventional melamine is (by melamine and formaldehyde, basic catalyst, foaming
Agent is made) water absorption rate is 18792.68% under equal conditions, percentage of water loss 96.46%.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high-moisture-retention melamine foamed plastic, which is characterized in that be made of following raw material: melamine 30-50
Part, 180-250 parts of formaldehyde, 3-8 parts of basic catalyst, 4-9 parts of curing agent, 22-28 parts of foaming agent, 3-8 parts of emulsifier, polyethylene
10-20 parts of alcohol, 5-10 parts of chitosan, 0.1-0.5 parts of ammonium persulfate, 0.03-0.05 parts of sodium hydrogensulfite, N, N ,-methylene third
1-5 parts of acrylamide, 100-200 parts and quaternary ammonium salt 1-5 parts of water.
2. a kind of high-moisture-retention melamine foamed plastic according to claim 1, which is characterized in that by following raw material system
At: 30 parts of melamine, 180 parts of formaldehyde, 3 parts of basic catalyst, 4 parts of curing agent, 22 parts of foaming agent, 3 parts of emulsifier, polyethylene
10 parts of alcohol, 5 parts of chitosan, 0.1 part of ammonium persulfate, 0.03 part of sodium hydrogensulfite, N, N, 1 part of-methylene acrylamide, water 100
Part with 1 part of quaternary ammonium salt.
3. a kind of high-moisture-retention melamine foamed plastic according to claim 1, which is characterized in that by following raw material system
At: 40 parts of melamine, 210 parts of formaldehyde, 5 parts of basic catalyst, 7 parts of curing agent, 25 parts of foaming agent, 5 parts of emulsifier, polyethylene
15 parts of alcohol, 7 parts of chitosan, 0.3 part of ammonium persulfate, 0.04 part of sodium hydrogensulfite, N, N, 3 parts of-methylene acrylamide, water 150
Part with 3 parts of quaternary ammonium salt.
4. a kind of high-moisture-retention melamine foamed plastic according to claim 1, which is characterized in that by following raw material system
At: 50 parts of melamine, 250 parts of formaldehyde, 8 parts of basic catalyst, 9 parts of curing agent, 28 parts of foaming agent, 8 parts of emulsifier, polyethylene
20 parts of alcohol, 10 parts of chitosan, 0.5 part of ammonium persulfate, 0.05 part of sodium hydrogensulfite, N, N, 5 parts of-methylene acrylamide, water 200
Part with 5 parts of quaternary ammonium salt.
5. any one of -4 a kind of high-moisture-retention melamine foamed plastic according to claim 1, which is characterized in that the alkalinity is urged
Agent is sodium hydroxide or potassium hydroxide.
6. any one of -4 a kind of high-moisture-retention melamine foamed plastic according to claim 1, which is characterized in that the curing agent
For boric acid or glutamic acid.
7. any one of -4 a kind of high-moisture-retention melamine foamed plastic according to claim 1, which is characterized in that the foaming agent
For the mixture of one or more of sodium bicarbonate, sodium carbonate, pentane and n-hexane.
8. any one of -4 a kind of high-moisture-retention melamine foamed plastic according to claim 1, which is characterized in that the emulsifier
For alkylbenzene sulfonate, alkyl phenol polyoxyethylene ether, Ben-zylphenol Polyoxyethyl Ether, phenethyl phenol polyethenoxy ether and alkylnaphthalene sulphur
The mixture of one or more of hydrochlorate.
9. any one of -4 a kind of high-moisture-retention melamine foamed plastic according to claim 1, which is characterized in that the quaternary ammonium salt
For one of dodecyl trimethyl ammonium bromide, dodecyl trimethyl ammonium chloride and cetyl trimethyl ammonium fluoride or several
The mixture of kind.
10. a kind of preparation method of high-moisture-retention melamine foamed plastic, which comprises the following steps:
A, it is weighed by following raw material: 30-50 parts of melamine, 180-250 parts of formaldehyde, 3-8 parts of basic catalyst, solidification
4-9 parts of agent, 22-28 parts of foaming agent, 3-8 parts of emulsifier, 10-20 parts of polyvinyl alcohol, 5-10 parts of chitosan, ammonium persulfate 0.1-
0.5 part, 0.03-0.05 parts of sodium hydrogensulfite, N, N, 1-5 parts of-methylene acrylamide, 100-200 parts of water and quaternary ammonium salt 1-5
Part；
B, by melamine, formaldehyde, basic catalyst and quaternary ammonium salt, under the conditions of 90-100 DEG C of temperature, 40-50min is reacted, is obtained
To melamine performed polymer；
C, by polyvinyl alcohol, chitosan, ammonium persulfate, sodium hydrogensulfite, N, N ,-methylene acrylamide and water, in 500-
It is mixed under 800rpm stirring condition, and controlling pH value is 7.1-7.8, then under the conditions of 90-100 DEG C of temperature, reacts 3-4h, obtain
To gelinite；
D, by the melamine performed polymer that step B is obtained and gelinite and curing agent, foaming agent, emulsifier that step C is obtained
It stirring and evenly mixing, obtains mixture, mixture is placed in microwave oven, under the conditions of 200-280 DEG C of temperature, foam 8-14min,
Up to high-moisture-retention melamine foamed plastic.
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2019
- 2019-08-12 CN CN201910740283.6A patent/CN110358250A/en active Pending
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|---|---|---|---|---|
| US20090256107A1 (en) * | 2006-07-13 | 2009-10-15 | Basf Sf. | Polyelectrolyte-modified microcapsules |
| WO2018053356A1 (en) * | 2016-09-16 | 2018-03-22 | International Flavors & Fragrances Inc. | Microcapsule compositions stabilized with viscosity control agents |
| CN106832385A (en) * | 2017-01-16 | 2017-06-13 | 四川众业长科技有限公司 | A kind of new melamine formaldehyde (MF) foam and preparation method thereof |
| CN107619574A (en) * | 2017-10-17 | 2018-01-23 | 成都玉龙化工有限公司 | A kind of water-retaining property melamino-formaldehyde foamed material and preparation method thereof |
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Application publication date: 20191022 |