CN110724237A - Modification method of melamine foam - Google Patents
Modification method of melamine foam Download PDFInfo
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- CN110724237A CN110724237A CN201911077807.4A CN201911077807A CN110724237A CN 110724237 A CN110724237 A CN 110724237A CN 201911077807 A CN201911077807 A CN 201911077807A CN 110724237 A CN110724237 A CN 110724237A
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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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with substituted triazines
- C08G12/32—Melamines
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
-
- 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
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- 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
- C08J2361/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08J2361/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/168—Zinc halides
Abstract
The invention provides a modification method of melamine foam, and relates to the technical field of foam material modification. The modified melamine foam is prepared from the following raw materials in parts by weight: 40-50 parts of melamine, 20-30 parts of formaldehyde, 4-5 parts of polyvinyl alcohol, 1-2 parts of copper sulfate, 1-2 parts of zinc chloride, 2-3 parts of aluminum stearate, 3-4 parts of silane coupling agent, 2-4 parts of stabilizer, 1-3 parts of antioxidant, 3-5 parts of plasticizer, 5-6 parts of cross-linking agent and 6-8 parts of foaming agent. According to the modification method of the melamine foam, the modification process of the melamine foam is optimized, meanwhile, part of additives are reasonably added, the problems that the melamine foam is high in hardness, fragile, easy to break, low in strength and the like are effectively solved, the improvement effect of the performance of the melamine foam is obvious, and the quality of the melamine foam material is further improved.
Description
Technical Field
The invention relates to the technical field of foam material modification, in particular to a modification method of melamine foam.
Background
The melamine foam is a novel high-temperature-resistant flame-retardant material, has excellent high-temperature resistance and flame retardance, the melamine formaldehyde resin foam is a novel foam with high aperture ratio, has low density, good machining performance, excellent sound absorption and excellent flame retardance, but the pure melamine formaldehyde resin is a thermosetting polymer, and the melamine foam material is widely applied to various fields and has good effect.
The melamine foam has a three-dimensional net-shaped cross-linking structure, and molecules contain a large amount of rigid triazine rings, so that the melamine formaldehyde resin foam has the characteristics of high hardness, fragility, slag falling, low strength and the like, and the melamine foam is modified in the using process.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a modification method of melamine foam, and solves the problems that the existing modification method of melamine foam is too simple, the improvement effect on the performance of melamine foam is not obvious, and the quality of melamine foam material still needs to be further improved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the modified melamine foam comprises the following raw materials in parts by weight: 40-50 parts of melamine, 20-30 parts of formaldehyde, 4-5 parts of polyvinyl alcohol, 1-2 parts of copper sulfate, 1-2 parts of zinc chloride, 2-3 parts of aluminum stearate, 3-4 parts of silane coupling agent, 2-4 parts of stabilizer, 1-3 parts of antioxidant, 3-5 parts of plasticizer, 5-6 parts of cross-linking agent and 6-8 parts of foaming agent.
Preferably, the stabilizer is selected from polyphosphoric acid or boric acid.
Preferably, the foaming agent is one or more of calcium carbonate, magnesium carbonate and sodium bicarbonate.
Preferably, the antioxidant is one or more of butyl hydroxy anisole, propyl gallate and tert-butyl hydroquinone.
Preferably, the modified melamine foam consists of the following raw materials in parts by weight: 40 parts of melamine, 20 parts of formaldehyde, 4 parts of polyvinyl alcohol, 1 part of copper sulfate, 1 part of zinc chloride, 2 parts of aluminum stearate, 3 parts of silane coupling agent, 2 parts of stabilizer, 1 part of antioxidant, 3 parts of plasticizer, 5 parts of crosslinking agent and 6 parts of foaming agent.
Preferably, the modified melamine foam consists of the following raw materials in parts by weight: 45 parts of melamine, 25 parts of formaldehyde, 4.5 parts of polyvinyl alcohol, 1.5 parts of copper sulfate, 1.5 parts of zinc chloride, 2.5 parts of aluminum stearate, 3.5 parts of silane coupling agent, 3 parts of stabilizer, 2 parts of antioxidant, 4 parts of plasticizer, 5.5 parts of cross-linking agent and 7 parts of foaming agent.
Preferably, the modified melamine foam consists of the following raw materials in parts by weight: 50 parts of melamine, 30 parts of formaldehyde, 5 parts of polyvinyl alcohol, 2 parts of copper sulfate, 2 parts of zinc chloride, 3 parts of aluminum stearate, 4 parts of silane coupling agent, 4 parts of stabilizer, 3 parts of antioxidant, 5 parts of plasticizer, 6 parts of crosslinking agent and 8 parts of foaming agent.
A method of modifying melamine foam comprising the steps of:
1) preparing melamine, formaldehyde, polyvinyl alcohol, copper sulfate, zinc chloride, aluminum stearate, a silane coupling agent, a stabilizer, an antioxidant, a plasticizer, a crosslinking agent and a foaming agent;
2) adding formaldehyde and polyvinyl alcohol into a reaction kettle, simultaneously adding an alkaline solution into the reaction kettle to adjust the pH value to be 8-9, controlling the temperature in the reaction kettle to be 70-80 ℃, and stirring for 10-15 minutes to obtain a mixture A;
3) adding melamine, copper sulfate, zinc chloride, aluminum stearate and a silane coupling agent into the mixture A, simultaneously adding an acidic solution into a reaction kettle to adjust the pH value to be 6-7, heating the reaction kettle to 80-90 ℃, and uniformly stirring for 30-40 minutes to obtain a mixture B;
4) adding a stabilizer, an antioxidant and a plasticizer into the mixture B, stirring for 5-10 minutes at the temperature of 65-75 ℃ in a reaction kettle to obtain a mixture C;
5) preparing a mould, heating the mould to 50-60 ℃, immediately injecting the obtained mixture C into the mould, adding a cross-linking agent and a foaming agent into the mixture C, placing the mould at 55-75 ℃ for drying treatment, and annealing treatment to obtain the modified melamine foam.
(III) advantageous effects
The invention provides a modification method of melamine foam. The method has the following beneficial effects:
according to the modification method of the melamine foam, the modification process of the melamine foam is optimized, meanwhile, part of additives are reasonably added, the problems that the melamine foam is high in hardness, fragile, easy to break, low in strength and the like are effectively solved, the improvement effect of the performance of the melamine foam is obvious, and the quality of the melamine foam material is further improved.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides modified melamine foam which comprises the following raw materials in parts by weight: 40 parts of melamine, 20 parts of formaldehyde, 4 parts of polyvinyl alcohol, 1 part of copper sulfate, 1 part of zinc chloride, 2 parts of aluminum stearate, 3 parts of silane coupling agent, 2 parts of stabilizer, 1 part of antioxidant, 3 parts of plasticizer, 5 parts of crosslinking agent and 6 parts of foaming agent.
Wherein the stabilizer is selected from polyphosphoric acid or boric acid; the foaming agent is one or more of calcium carbonate, magnesium carbonate and sodium bicarbonate; the antioxidant is one or more of butylated hydroxyanisole, propyl gallate and tert-butylhydroquinone.
A method of modifying melamine foam comprising the steps of:
1) preparing melamine, formaldehyde, polyvinyl alcohol, copper sulfate, zinc chloride, aluminum stearate, a silane coupling agent, a stabilizer, an antioxidant, a plasticizer, a crosslinking agent and a foaming agent;
2) adding formaldehyde and polyvinyl alcohol into a reaction kettle, simultaneously adding an alkaline solution into the reaction kettle to adjust the pH value to be 8-9, controlling the temperature in the reaction kettle to be 70-80 ℃, and stirring for 10-15 minutes to obtain a mixture A;
3) adding melamine, copper sulfate, zinc chloride, aluminum stearate and a silane coupling agent into the mixture A, simultaneously adding an acidic solution into a reaction kettle to adjust the pH value to be 6-7, heating the reaction kettle to 80-90 ℃, and uniformly stirring for 30-40 minutes to obtain a mixture B;
4) adding a stabilizer, an antioxidant and a plasticizer into the mixture B, stirring for 5-10 minutes at the temperature of 65-75 ℃ in a reaction kettle to obtain a mixture C;
5) preparing a mould, heating the mould to 50-60 ℃, immediately injecting the obtained mixture C into the mould, adding a cross-linking agent and a foaming agent into the mixture C, placing the mould at 55-75 ℃ for drying treatment, and annealing treatment to obtain the modified melamine foam.
Example two:
the embodiment of the invention provides modified melamine foam which comprises the following raw materials in parts by weight: 45 parts of melamine, 25 parts of formaldehyde, 4.5 parts of polyvinyl alcohol, 1.5 parts of copper sulfate, 1.5 parts of zinc chloride, 2.5 parts of aluminum stearate, 3.5 parts of silane coupling agent, 3 parts of stabilizer, 2 parts of antioxidant, 4 parts of plasticizer, 5.5 parts of cross-linking agent and 7 parts of foaming agent.
Wherein the stabilizer is selected from polyphosphoric acid or boric acid; the foaming agent is one or more of calcium carbonate, magnesium carbonate and sodium bicarbonate; the antioxidant is one or more of butylated hydroxyanisole, propyl gallate and tert-butylhydroquinone.
A method of modifying melamine foam comprising the steps of:
1) preparing melamine, formaldehyde, polyvinyl alcohol, copper sulfate, zinc chloride, aluminum stearate, a silane coupling agent, a stabilizer, an antioxidant, a plasticizer, a crosslinking agent and a foaming agent;
2) adding formaldehyde and polyvinyl alcohol into a reaction kettle, simultaneously adding an alkaline solution into the reaction kettle to adjust the pH value to be 8-9, controlling the temperature in the reaction kettle to be 70-80 ℃, and stirring for 10-15 minutes to obtain a mixture A;
3) adding melamine, copper sulfate, zinc chloride, aluminum stearate and a silane coupling agent into the mixture A, simultaneously adding an acidic solution into a reaction kettle to adjust the pH value to be 6-7, heating the reaction kettle to 80-90 ℃, and uniformly stirring for 30-40 minutes to obtain a mixture B;
4) adding a stabilizer, an antioxidant and a plasticizer into the mixture B, stirring for 5-10 minutes at the temperature of 65-75 ℃ in a reaction kettle to obtain a mixture C;
5) preparing a mould, heating the mould to 50-60 ℃, immediately injecting the obtained mixture C into the mould, adding a cross-linking agent and a foaming agent into the mixture C, placing the mould at 55-75 ℃ for drying treatment, and annealing treatment to obtain the modified melamine foam.
Example three:
the embodiment of the invention provides modified melamine foam which comprises the following raw materials in parts by weight: 50 parts of melamine, 30 parts of formaldehyde, 5 parts of polyvinyl alcohol, 2 parts of copper sulfate, 2 parts of zinc chloride, 3 parts of aluminum stearate, 4 parts of silane coupling agent, 4 parts of stabilizer, 3 parts of antioxidant, 5 parts of plasticizer, 6 parts of crosslinking agent and 8 parts of foaming agent.
Wherein the stabilizer is selected from polyphosphoric acid or boric acid; the foaming agent is one or more of calcium carbonate, magnesium carbonate and sodium bicarbonate; the antioxidant is one or more of butylated hydroxyanisole, propyl gallate and tert-butylhydroquinone.
A method of modifying melamine foam comprising the steps of:
1) preparing melamine, formaldehyde, polyvinyl alcohol, copper sulfate, zinc chloride, aluminum stearate, a silane coupling agent, a stabilizer, an antioxidant, a plasticizer, a crosslinking agent and a foaming agent;
2) adding formaldehyde and polyvinyl alcohol into a reaction kettle, simultaneously adding an alkaline solution into the reaction kettle to adjust the pH value to be 8-9, controlling the temperature in the reaction kettle to be 70-80 ℃, and stirring for 10-15 minutes to obtain a mixture A;
3) adding melamine, copper sulfate, zinc chloride, aluminum stearate and a silane coupling agent into the mixture A, simultaneously adding an acidic solution into a reaction kettle to adjust the pH value to be 6-7, heating the reaction kettle to 80-90 ℃, and uniformly stirring for 30-40 minutes to obtain a mixture B;
4) adding a stabilizer, an antioxidant and a plasticizer into the mixture B, stirring for 5-10 minutes at the temperature of 65-75 ℃ in a reaction kettle to obtain a mixture C;
5) preparing a mould, heating the mould to 50-60 ℃, immediately injecting the obtained mixture C into the mould, adding a cross-linking agent and a foaming agent into the mixture C, placing the mould at 55-75 ℃ for drying treatment, and annealing treatment to obtain the modified melamine foam.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A modified melamine foam characterized by: the composite material comprises the following raw materials in parts by weight: 40-50 parts of melamine, 20-30 parts of formaldehyde, 4-5 parts of polyvinyl alcohol, 1-2 parts of copper sulfate, 1-2 parts of zinc chloride, 2-3 parts of aluminum stearate, 3-4 parts of silane coupling agent, 2-4 parts of stabilizer, 1-3 parts of antioxidant, 3-5 parts of plasticizer, 5-6 parts of cross-linking agent and 6-8 parts of foaming agent.
2. A modified melamine foam according to claim 1, wherein: the stabilizer is selected from polyphosphoric acid or boric acid.
3. A modified melamine foam according to claim 1, wherein: the foaming agent is one or more of calcium carbonate, magnesium carbonate and sodium bicarbonate.
4. A modified melamine foam according to claim 1, wherein: the antioxidant is one or more of butyl hydroxy anisol, propyl gallate and tert-butyl hydroquinone.
5. A modified melamine foam according to claim 1, wherein: the composition is characterized by comprising the following raw materials in parts by weight: 40 parts of melamine, 20 parts of formaldehyde, 4 parts of polyvinyl alcohol, 1 part of copper sulfate, 1 part of zinc chloride, 2 parts of aluminum stearate, 3 parts of silane coupling agent, 2 parts of stabilizer, 1 part of antioxidant, 3 parts of plasticizer, 5 parts of crosslinking agent and 6 parts of foaming agent.
6. A modified melamine foam according to claim 1, wherein: the composition is characterized by comprising the following raw materials in parts by weight: 45 parts of melamine, 25 parts of formaldehyde, 4.5 parts of polyvinyl alcohol, 1.5 parts of copper sulfate, 1.5 parts of zinc chloride, 2.5 parts of aluminum stearate, 3.5 parts of silane coupling agent, 3 parts of stabilizer, 2 parts of antioxidant, 4 parts of plasticizer, 5.5 parts of cross-linking agent and 7 parts of foaming agent.
7. A modified melamine foam according to claim 1, wherein: the composition is characterized by comprising the following raw materials in parts by weight: 50 parts of melamine, 30 parts of formaldehyde, 5 parts of polyvinyl alcohol, 2 parts of copper sulfate, 2 parts of zinc chloride, 3 parts of aluminum stearate, 4 parts of silane coupling agent, 4 parts of stabilizer, 3 parts of antioxidant, 5 parts of plasticizer, 6 parts of crosslinking agent and 8 parts of foaming agent.
8. A modification method of melamine foam is characterized in that: the method comprises the following steps:
1) preparing melamine, formaldehyde, polyvinyl alcohol, copper sulfate, zinc chloride, aluminum stearate, a silane coupling agent, a stabilizer, an antioxidant, a plasticizer, a crosslinking agent and a foaming agent;
2) adding formaldehyde and polyvinyl alcohol into a reaction kettle, simultaneously adding an alkaline solution into the reaction kettle to adjust the pH value to be 8-9, controlling the temperature in the reaction kettle to be 70-80 ℃, and stirring for 10-15 minutes to obtain a mixture A;
3) adding melamine, copper sulfate, zinc chloride, aluminum stearate and a silane coupling agent into the mixture A, simultaneously adding an acidic solution into a reaction kettle to adjust the pH value to be 6-7, heating the reaction kettle to 80-90 ℃, and uniformly stirring for 30-40 minutes to obtain a mixture B;
4) adding a stabilizer, an antioxidant and a plasticizer into the mixture B, stirring for 5-10 minutes at the temperature of 65-75 ℃ in a reaction kettle to obtain a mixture C;
5) preparing a mould, heating the mould to 50-60 ℃, immediately injecting the obtained mixture C into the mould, adding a cross-linking agent and a foaming agent into the mixture C, placing the mould at 55-75 ℃ for drying treatment, and annealing treatment to obtain the modified melamine foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077807.4A CN110724237A (en) | 2019-11-06 | 2019-11-06 | Modification method of melamine foam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911077807.4A CN110724237A (en) | 2019-11-06 | 2019-11-06 | Modification method of melamine foam |
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| CN110724237A true CN110724237A (en) | 2020-01-24 |
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| CN201911077807.4A Pending CN110724237A (en) | 2019-11-06 | 2019-11-06 | Modification method of melamine foam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113583291A (en) * | 2021-07-27 | 2021-11-02 | 莆田市茂隆鞋服有限公司 | Sponge with good mildew-proof and antibacterial effects and preparation method thereof |
| JP2022529875A (en) * | 2020-03-27 | 2022-06-27 | 浙江亜迪納新材料科技股▲フン▼有限公司 | Semi-rigid cyanurotriamide foamed plastic and its manufacturing method |
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| CN113583291A (en) * | 2021-07-27 | 2021-11-02 | 莆田市茂隆鞋服有限公司 | Sponge with good mildew-proof and antibacterial effects and preparation method thereof |
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