CN104031284A - Preparation method of foaming liquid of melamine foams - Google Patents
Preparation method of foaming liquid of melamine foams Download PDFInfo
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- CN104031284A CN104031284A CN201410213567.7A CN201410213567A CN104031284A CN 104031284 A CN104031284 A CN 104031284A CN 201410213567 A CN201410213567 A CN 201410213567A CN 104031284 A CN104031284 A CN 104031284A
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Abstract
The invention relates to a preparation method of a foaming liquid of melamine foams. The foaming liquid mainly comprises the following raw materials: special resins for the melamine foams, a surfactant, a foam stabilizer, a foaming agent, a cross-linking agent and the like. Special equipment for the preparation of the foaming liquid includes a high-speed stirrer, an output pump and a single/double screw extruder, wherein the revolving speed of the high-speed stirrer is between 1000rpm and 5000rpm (Revolutions Per Minute); the extruder is formed by the combination of double screws and a single screw which are connected in series or the single application of the single screw or the double screws. The preparation method comprises the following steps: adding the raw materials required for the preparation of the foaming liquid into the high-speed stirrer in designed proportion and stirring; preliminarily and evenly mixing; then conveying into the extruder through a conveying pump; and treating the mixture in the extruder to obtain the highly-uniform foaming liquid. The foaming liquid enters a foaming process for preparing the melamine foams.
Description
Technical field
The present invention relates to polymer field of new, specifically, that relate to is a kind of preparation technology of melamine foamed plastic expanding foam solution.
Background technology
Melamine foamed plastic has good fire-retardant, sound-absorbing, noise reduction, heat insulation, high temperature resistant, chemical resistance, the low rate of being fuming, the performance such as post-treatment easily, fire-retardant and sound-absorbing is the feature that melamine foam is the most outstanding, and these characteristics make it be widely used in the increasing field such as building, decoration, public place, electromechanical equipment, vehicular traffic.
Show according to statistics, more than 80% fire fatality is all relevant to poisonous smoke.At present,, except flame retardant properties own is poor, its resistance to elevated temperatures is also poor for common foam materials (as urethane, super glass wool, polystyrene, phenol formaldehyde foam etc.), and this just causes it in fire, to discharge a large amount of smog and toxic gas.Melamino-formaldehyde foam has high flame resistance because of itself, in the situation that not adding any fire retardant, just can reach B1 level low combustible standard of materials and UL94-V0 (AIA's standard) the level high flame retardant standard of materials of DIN4102 (German standard) defined.
But, melamino-formaldehyde foam exist always fragility large, fall the problems such as slag is serious, compression resilience is poor.These problems are not also improved in disclosed patent (as US400050, US4334971, DE870027, US6608118, FR1073642, CN200510038093.8 etc.) formula.People also attempt to improve these problems by various modifications (as US5436278, US6608118, CN200910263526.8, CN201110082559.X etc.), although these methods have been improved the Local Property of foam, also how much affect the originally good performance of foam.Such as: patent CN200910263526.8, although improved the toughness of foam, because it adds a large amount of polyvinyl alcohol, and then has affected the flame retardant properties of foam itself.
The performance of melamine foamed plastic is mainly determined by resin dedicated preparation technology, expanding foam solution preparation technology, foam preparation technology three parts.Expanding foam solution preparation technology determines composition and the homogeneity of expanding foam solution, the performance of final decision melamine foamed plastic and the height of scrap rate.For the shortcoming and deficiency of melamine foamed plastic prior art, this patent invention, through a large amount of experiments, filters out the expanding foam solution mixing special purpose device of better expanding foam solution blending process and science.The required mixing device dedicated of preparation expanding foam solution is made up of homogenizer, transferpump, list/twin screw extruder.The required various raw materials of preparation expanding foam solution are sent into list/twin screw extruder by transferpump after the preliminary mixing of homogenizer, obtain expanding foam solution highly uniformly.
Summary of the invention:
The object of the present invention is to provide a kind of preparation technology of melamine foamed plastic expanding foam solution, the basic problem existing to improve existing foam, for expanding foam solution preparation in melamine foamed plastic production process provides the foundation of technology and equipment type selecting.
The expanding foam solution preparation technology of melamine foamed plastic involved in the present invention mainly comprises: melamine foam is resin dedicated, tensio-active agent, suds-stabilizing agent, whipping agent, linking agent, nucleator, auxiliary agent etc.; The specific equipment of preparing expanding foam solution is made up of homogenizer, Send out pump, list/twin screw extruder.
Described resin dedicated quality percentage composition is 30～90%, and preferably solid content is 50～80%; Viscosity is at 10000-5000mPa.s, preferably 1500～4000mPa.s.
Described specific equipment is made up of jointly homogenizer, Send out pump, list/twin screw extruder.1000～5000 revs/min of the rotating speeds of homogenizer, preferably 2000～4000 revs/min; Forcing machine is used or is used separately by single screw rod and twin screw series combination.
Described tensio-active agent is that one or more in anion surfactant, cats product, nonionogenic tenside are composite, tensio-active agent can directly add or with the form of solution add resin dedicated in, dosage of surfactant and resin dedicated mass ratio are 100: 0.1～30, preferably 100: 0.5～15.
Anion surfactant comprises: higher fatty acid tri ethanol ammonium salt, alkylbenzene sulfonate, sulfonated α-olefin, alkylsulfonate, alpha-sulfo monocarboxylate, lipid acid sulfoalkyl ester, sulphosuccinates, sulfonated alkyl naphathalene, sulfonated petro-leum, sulfonated lignin, alkyl glyceryl ether sulfonate, fatty alcohol sulfate salt, secondary alkyl sulphate salt etc.; Cats product comprises: fatty amine salt, ethanolamine salt, polyethylene polyamines salt, quaternary ammonium salt, heterocyclic (imidazolines, Moroxydine class, triazine derivative class) etc.; Nonionogenic tenside: polyoxyethylene-type (as alkylphenol polyoxyethylene, high-carbon fatty alcohol polyoxyethylene ether, polyoxyethylene carboxylate, polyoxyethylene amine, polyoxyethylate amide, polyether nonionic surfactant), polyvalent alcohol type (as tween series), alkylol amide type, non-ion fluorin carbon surface active agent etc.
Described suds-stabilizing agent is the segmented copolymer of silicone oil series, silicone resin polyethers emulsion class, macromolecular substance (as polyacrylamide, polyvinyl alcohol, albumen, polypeptide, starch, Mierocrystalline cellulose etc.), nonionogenic tenside (as dimethyl dodecyl amine oxide, alkylol amide, tween series, this Pan's series), dimethione and polyoxygenated alkene etc., its consumption and resin dedicated mass ratio are 100: 0～20, preferably 100: 0.5～10.
It is composite lower than one or more in the pneumatogen of 100 DEG C lower than the chemical foaming agent of 200 DEG C or boiling point that described whipping agent is that the whipping agent described in it is decomposition temperature, the resin dedicated mass ratio of the consumption of whipping agent and melamine foamed plastic is 100: 1～50, preferably 100: 3～30.Chemical foaming agent comprises sodium carbonate, sodium bicarbonate, ammonium chloride, ammonium acetate, ammonium oxalate etc.; Pneumatogen comprises: butane, Skellysolve A, iso-pentane, pentamethylene, normal hexane, hexanaphthene, normal heptane, octane-iso, sherwood oil, tetrahydrobenzene, Refrigerant R 113,1,2-ethylene dichloride, N-PROPYLE BROMIDE, chlorobutane, methyl-formiate, ethyl formate, methyl acetate, ethyl acetate, oxalic acid diethyl ester, Toluene-2,4-diisocyanate, 4-vulcabond etc.
Described linking agent is hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, phosphorous acid, sulfurous acid, metaphosphoric acid, tetra-sodium, boric acid, citric acid, formic acid, acetic acid, oxalic acid, propionic acid, butyric acid, propanedioic acid, vinylformic acid, tosic acid, oleic acid, linolic acid, palmitinic acid, amino acid, phenylformic acid, phthalic acid, benzene tricarboxylic acid, tartrate, lactic acid, isopropylformic acid, sulphosalicylic acid, naphthalene disulfonic acid, maleic acid, other polyhydroxy-acids and corresponding acid anhydrides, the consumption of linking agent and resin dedicated mass ratio are 100: 0.5～25, preferably 100: 1～12.
Described auxiliary agent is releasing agent, softening agent, strongthener, nano material, pigment, whitening agent, hydrophober, anti-aging agent or other are for improving the interpolation material of foam aspect performance, its use-pattern is added with for one or more, auxiliary dosage and resin dedicated mass ratio are 100: 0～25, preferably 100: 0～15.The selection of auxiliary agent is the demand to foam aspect performance mainly for us, and this respect technology is basic general knowledge to those skilled in the art.
Embodiment
Below in conjunction with concrete case study on implementation, the present invention is specifically described in detail, but embodiments of the present invention are not limited in this.
Embodiment 1
Expanding foam solution preparation: resin dedicated 1000g, OP-10100g, polysorbas20 5g, Skellysolve A 150g, phosphoric acid 50g are added in homogenizer, start stirring, after tentatively mixing, send into forcing machine by transferpump, after forcing machine, obtain expanding foam solution highly uniformly.
Expanding foam solution is through special microwave foam device foaming 1-4 minute, and crosslinked after 130～150 DEG C, sizing, dry 40 minutes makes melamine foam.Foam density 8kg/m
3, compressive strength 8kpa.
Embodiment 2
Resin dedicated 1000g, Sodium dodecylbenzene sulfonate 100g, tween 80 15g, sherwood oil 200g, phosphoric acid 80g.The melamine foam density 10kg/m making according to the technique of embodiment 1
3, compressive strength 10kpa.
Embodiment 3
Resin dedicated 1000g, sodium butylnaphthalenesulfonate 80g, polysorbate85 7g, normal hexane 300g, acetic acid 50g.The melamine foam density 5kg/m making according to the foam process of embodiment 1
3, compressive strength 6kpa.
Embodiment 4
Resin dedicated 1000g, alkylpolyoxyethylene 110g, polysorbate40 15g, iso-pentane 200g, methyl-formiate 200g, phosphoric acid 25g, formic acid 35g.
The melamine foam density 15kg/m making according to the foam process of embodiment 1
3, compressive strength 12kpa.。
Embodiment 5
Resin dedicated 1000g, OP-1050g, sodium butylnaphthalenesulfonate 30g, silicone oil 15g, sherwood oil 260g, nano carbon black 100g, phosphoric acid 30g, citric acid 30g, anti-aging agent 10g.
The melamine foam density 12kg/m making according to the foam process of embodiment 1
3, compressive strength 14kpa.。
Embodiment 6
Segmented copolymer 100g, the sulfonated castor oil 15g of resin dedicated 1000g, dimethione and polyoxygenated alkene, Refrigerant R 113 200g, sodium bicarbonate 50g, propanedioic acid 10g, anti-aging agent 10g.
The melamine foam density 9kg/m making according to the foam process of embodiment 1
3, compressive strength 8kpa.
Claims (10)
1. a preparation technology for melamine foamed plastic expanding foam solution, is characterized in that: expanding foam solution mainly, tensio-active agent resin dedicated by melamine foam, suds-stabilizing agent, whipping agent, linking agent, auxiliary agent etc. forms; Expanding foam solution preparation specific equipment is made up of homogenizer, transferpump, list/twin screw extruder; Expanding foam solution is sent into list/twin screw extruder by transferpump after the preliminary mixing of homogenizer, obtains expanding foam solution highly uniformly.
2. expanding foam solution preparation technology according to claim 1, is characterized in that: the resin dedicated quality percentage composition 30～90% of melamine foamed plastic described in it, viscosity 1000～5000mPa.s.
3. according to the expanding foam solution preparation technology of claim 1, it is characterized in that: its equipment used is made up of jointly homogenizer, Send out pump, list/twin screw extruder 1000～5000 revs/min of the rotating speeds of homogenizer; Forcing machine is used or is used separately by single screw rod and twin screw series combination.
4. according to the expanding foam solution preparation technology of claim 1, it is characterized in that: the tensio-active agent described in it is that one or more in anion surfactant, cats product, nonionogenic tenside are composite; Anion surfactant comprises: higher fatty acid tri ethanol ammonium salt, alkylbenzene sulfonate, sulfonated α-olefin, alkylsulfonate, alpha-sulfo monocarboxylate, lipid acid sulfoalkyl ester, sulphosuccinates, sulfonated alkyl naphathalene, sulfonated petro-leum, sulfonated lignin, alkyl glyceryl ether sulfonate, fatty alcohol sulfate salt; Cats product comprises: fatty amine salt, ethanolamine salt, polyethylene polyamines salt, imidazolines, Moroxydine class, triazine derivative class; Ionic surfactant pack is drawn together: alkylphenol polyoxyethylene, high-carbon fatty alcohol polyoxyethylene ether, polyoxyethylene carboxylate, polyoxyethylene amine, polyoxyethylate amide, polyether nonionic surfactant, tween series, alkylol amide type.
5. expanding foam solution preparation technology according to claim 1, it is characterized in that: the mode that adds of the tensio-active agent described in it be directly or with the form of solution add melamine foamed plastic resin dedicated in, dosage of surfactant is 100: 0.1～30 with the ratio of resin dedicated quality.
6. according to the expanding foam solution preparation technology of claim 1, it is characterized in that: described suds-stabilizing agent is the segmented copolymer of silicone oil, silicone resin polyethers emulsion, polyacrylamide, polyvinyl alcohol, protein, polypeptide, starch, Mierocrystalline cellulose, dimethyl dodecyl amine oxide, alkylol amide, tween series, this Pan's series or dimethione and polyoxygenated alkene, and its consumption and resin dedicated mass ratio are 100: 0.5～10.
7. according to the expanding foam solution preparation technology of claim 1, it is characterized in that: it is composite lower than one or more in the pneumatogen of 100 DEG C lower than the chemical foaming agent of 200 DEG C or boiling point that the whipping agent described in it is decomposition temperature, and the resin dedicated mass ratio of the consumption of whipping agent and melamine foamed plastic is 100: 1～50.
8. preparation technology according to claim 6, is characterized in that: chemical foaming agent comprises sodium carbonate, sodium bicarbonate, ammonium chloride, ammonium acetate or ammonium oxalate; Pneumatogen comprises butane, Skellysolve A, iso-pentane, pentamethylene, normal hexane, hexanaphthene, normal heptane, octane-iso, sherwood oil, tetrahydrobenzene, Refrigerant R 113,1,2-ethylene dichloride, N-PROPYLE BROMIDE, chlorobutane, methyl-formiate, ethyl formate, methyl acetate, ethyl acetate, oxalic acid diethyl ester or Toluene-2,4-diisocyanate, 4-vulcabond.
9. according to the expanding foam solution preparation technology of claim 1, it is characterized in that: the linking agent described in it is hydrochloric acid, nitric acid, sulfuric acid, phosphoric acid, phosphorous acid, sulfurous acid, metaphosphoric acid, tetra-sodium, boric acid, citric acid, formic acid, acetic acid, oxalic acid, propionic acid, butyric acid, propanedioic acid, vinylformic acid, tosic acid, oleic acid, linolic acid, palmitinic acid, amino acid, phenylformic acid, phthalic acid, benzene tricarboxylic acid, tartrate, lactic acid, isopropylformic acid, sulphosalicylic acid, naphthalene disulfonic acid, one or more in maleic acid or other polyhydroxy-acids and corresponding acid anhydrides are compound, the consumption of linking agent and resin dedicated mass ratio are 100: 0.5～25.
10. according to the expanding foam solution preparation technology of claim 1, it is characterized in that: other auxiliary agent described in it is releasing agent, softening agent, strongthener, pigment, hydrophober, anti-aging agent etc., auxiliary dosage and resin dedicated mass ratio are 100: 0～25.
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| CN201410213567.7A CN104031284A (en) | 2013-06-06 | 2014-05-16 | Preparation method of foaming liquid of melamine foams |
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| CN201310756710.2A Pending CN104231298A (en) | 2013-06-06 | 2013-12-31 | Preparation process of tripolycyanamide foam foaming liquid |
| CN201410213567.7A Pending CN104031284A (en) | 2013-06-06 | 2014-05-16 | Preparation method of foaming liquid of melamine foams |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105733183A (en) * | 2014-12-31 | 2016-07-06 | 中国科学院成都有机化学有限公司 | Preparation method of semi-hard melamine foam |
| WO2017148011A1 (en) * | 2016-02-29 | 2017-09-08 | 歌尔声学股份有限公司 | Method for preparing sound-absorbing article, and sound-absorbing article |
| CN107522829A (en) * | 2016-06-21 | 2017-12-29 | 中国科学院成都有机化学有限公司 | A kind of melmac, preparation method and melamine expanding foam solution |
| CN112552922A (en) * | 2020-12-28 | 2021-03-26 | 中铁十局集团有限公司 | Easily-degradable environment-friendly dispersing foaming agent for mudstone geological shield and preparation method thereof |
Families Citing this family (2)
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| CN104231298A (en) * | 2013-06-06 | 2014-12-24 | 中国科学院成都有机化学有限公司 | Preparation process of tripolycyanamide foam foaming liquid |
| CN105061991B (en) * | 2015-08-03 | 2017-06-09 | 江南大学 | A kind of melamine foamed plastic based on the foaming of heterogeneous nucleation principle and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105733183A (en) * | 2014-12-31 | 2016-07-06 | 中国科学院成都有机化学有限公司 | Preparation method of semi-hard melamine foam |
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| CN112552922A (en) * | 2020-12-28 | 2021-03-26 | 中铁十局集团有限公司 | Easily-degradable environment-friendly dispersing foaming agent for mudstone geological shield and preparation method thereof |
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| CN104231298A (en) | 2014-12-24 |
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Application publication date: 20140910 |