CN103205011A - Melamine-formaldehyde foamed plastic foaming agent - Google Patents
Melamine-formaldehyde foamed plastic foaming agent Download PDFInfo
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- CN103205011A CN103205011A CN2013100679323A CN201310067932A CN103205011A CN 103205011 A CN103205011 A CN 103205011A CN 2013100679323 A CN2013100679323 A CN 2013100679323A CN 201310067932 A CN201310067932 A CN 201310067932A CN 103205011 A CN103205011 A CN 103205011A
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Abstract
The invention discloses a melamine-formaldehyde foamed plastic foaming agent. The foaming agent is prepared by uniformly mixing the following raw materials by weight: 12-16 parts of modified azodicarbonamide, 5-8 parts of Diphenyl-methane-diisocyanate, 4-6 parts of biurea, 3-5 parts of sodium bicarbonate, 25-30 parts of propylene glycol, 1-2 parts of triethanolamine, 2-3 parts of citric acid, 0.5-1.5 parts of ethylene bis-stearamide and 3-4 parts of water. The invention employs nano silica to modify azodicarbonamide to realize uniform high dispersion of the foaming agent in a porous inorganic nano material, in order to reduce local foaming dose, produce more uniform foams, significantly reduce diameter of foam holes after foaming and increase foam hole density and foam stability. The morphology of silica and compatibility of inorganic particles with organic polymer matrix enable the nano composite foaming agent to evenly disperse into the organic polymer. The foaming agent produced by the invention has advantages of excellent foaming capacity, foaming stability, good temperature adaptability and dispersion uniformity of the produced foam, low cost and easy to usage.
Description
Technical field
The present invention relates to a kind of foam plastic foaming agent, be specifically related to the agent of a kind of melamino-formaldehyde foam plastic foaming.
Background technology
Modern society is more and more stricter to the requirement of sound absorption and insulating foam material, the melamino-formaldehyde foam materials can discharge nitrogen when heating, good flame retardancy is arranged, therefore domestic more and more the attention has the fire-retardant acoustically effective of good sound insulation and noise reduction to the research application melamine foamed plastic of melamino-formaldehyde foam materials, can eliminate the fire safety evaluating hidden danger of conventional foam plastics, therefore melamine foam material can be applied in the acoustic engineering field widely, for example arenas meeting room and music hall etc., aerospace field is as drome rocket nose cone etc. and automobile rail vehicle field etc.And whipping agent is most important a kind of auxiliary agent in the melamino-formaldehyde porous plastics, and the kind of whipping agent, quantity have a direct impact the physical and mechanical properties of foam, foam density, temperature tolerance etc.There are problems such as foaming power is lower, less stable in the whipping agent of melamino-formaldehyde porous plastics use at present, directly has influence on the performance of plastics, causes product strength low, the quality instability, and general technical quality level is low.Therefore, it is very necessary and urgent conducting a research at the existing problem of whipping agent.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of foaming power height, melamino-formaldehyde foam plastic foaming agent that foam stabilization is good are provided.
The technical solution used in the present invention is as follows:
The agent of melamino-formaldehyde foam plastic foaming is mixed by the raw material of following weight part and to form:
Preferably, the agent of melamino-formaldehyde foam plastic foaming is mixed by the raw material of following weight part and to form:
Described modification Cellmic C 121 is made by following steps: get the nano silicon of 2-3 part drying earlier, add 20-30 part polyoxyethylene glycol, place under the high speed agitator, continuously stirring 10-15min makes it to reach abundant dispersion, namely gets SiO
2/ PEG solution is got 2-3 part Cellmic C 121 then and is dissolved in 30-40 part dimethyl sulfoxide (DMSO), adds an amount of SiO
2/ PEG solution, it is compound to carry out incipient impregnation with Cellmic C 121, and dipping 10-12h gets final product at 50-60 ℃ of following vacuum-drying 10-12h.
Beneficial effect of the present invention:
The present invention carries out modification by adopting nano silicon to Cellmic C 121, realize that the even high dispersive of whipping agent is in poroid inorganic nano material, to reduce its partial foaming dosage, make the foam of generation more even, cell diameter after the foaming has significantly and reduces, while cell density and froth stability also relative increasing, because the morphological structure of nano silicon and the consistency of inorganic particle and organic polymer matrix, thereby nanocomposite foaming agent can be distributed in the organic polymer more uniformly.The whipping agent that the present invention produces has good foaming power, foamed stability, the good thermal adaptability of the foam of generation and dispersing uniformity, and low cost, easy to use.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment
The agent of melamino-formaldehyde foam plastic foaming is mixed by the raw material of following weight part and to form:
Wherein, described modification Cellmic C 121 is made by following steps: get the nano silicon of 3 parts of dryings earlier, add 25 parts of polyoxyethylene glycol, place under the high speed agitator, continuously stirring 15min makes it to reach abundant dispersion, namely gets SiO
2/ PEG solution is got 3 parts of Cellmic C 121s then and is dissolved in 32 parts of dimethyl sulfoxide (DMSO), adds an amount of SiO
2/ PEG solution, it is compound to carry out incipient impregnation with Cellmic C 121, and dipping 12h gets final product at 60 ℃ of following vacuum-drying 12h.
The abscess that the whipping agent that adopts the present invention to make prepares the melamino-formaldehyde porous plastics is open-celled structure, and each abscess has at least two holes or individual surface of fracture, and it is common that most of abscess ribs are at least 3 structural units.Open celled foam has higher receptivity to water and moisture, heat or electricity is had lower insulativity, and sound is had better damping receptivity.Its product performance such as table 1.
Table 1
Claims (3)
1. melamino-formaldehyde foam plastic foaming agent is characterized in that, is mixed by the raw material of following weight part to form:
Modification Cellmic C 121 12-16 part
Diphenylmethanediisocyanate 5-8 part
Hydrazo-dicarbonamide 4-6 part
Sodium bicarbonate 3-5 part
Propylene glycol 25-30 part
Trolamine 1-2 part
Citric acid 2-3 part
The two hard esteramides 0.5-1.5 parts of ethylene group
Water 3-4 part.
2. melamino-formaldehyde foam plastic foaming according to claim 1 agent is characterized in that, is mixed by the raw material of following weight part to form:
15 parts of modification Cellmic C 121s
6 parts of diphenylmethanediisocyanates
5 parts of hydrazo-dicarbonamides
4 parts of sodium bicarbonates
28 parts of propylene glycol
2 parts of trolamines
2 parts of citric acids
0.8 part of the two hard esteramides of ethylene group
3 parts in water.
3. melamino-formaldehyde foam plastic foaming according to claim 1 agent, it is characterized in that, described modification Cellmic C 121 is made by following steps: the nano silicon of getting 2-3 part drying earlier, add 20-30 part polyoxyethylene glycol, place under the high speed agitator, continuously stirring 10-15min makes it to reach abundant dispersion, namely gets SiO
2/ PEG solution is got 2-3 part Cellmic C 121 then and is dissolved in 30-40 part dimethyl sulfoxide (DMSO), adds an amount of SiO
2/ PEG solution, it is compound to carry out incipient impregnation with Cellmic C 121, and dipping 10-12h gets final product at 50-60 ℃ of following vacuum-drying 10-12h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100679323A CN103205011A (en) | 2013-03-04 | 2013-03-04 | Melamine-formaldehyde foamed plastic foaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100679323A CN103205011A (en) | 2013-03-04 | 2013-03-04 | Melamine-formaldehyde foamed plastic foaming agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103205011A true CN103205011A (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100679323A Pending CN103205011A (en) | 2013-03-04 | 2013-03-04 | Melamine-formaldehyde foamed plastic foaming agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN103205011A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112898622A (en) * | 2021-01-20 | 2021-06-04 | 江苏威久科技发展有限公司 | Foaming agent for foamed plastic and preparation method thereof |
| CN115053371A (en) * | 2020-02-28 | 2022-09-13 | 日本瑞翁株式会社 | Composite particle for electrochemical device, method for producing same, electrode for electrochemical device, and electrochemical device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280054A (en) * | 1999-07-07 | 2001-01-17 | 中国科学院长春应用化学研究所 | Method for producing foamed polyolefine plastic pipe |
| CN101274999A (en) * | 2007-03-30 | 2008-10-01 | 北京化工大学 | Novel composite vesicant |
| CN101982497A (en) * | 2010-10-22 | 2011-03-02 | 西北师范大学 | Flame-retardant acrylonitrile-butadiene-styrene (ABS) composite material |
| CN102250375A (en) * | 2010-05-19 | 2011-11-23 | 北京化工大学 | Preparation method for nano-composite foaming agent based on porous inorganic material |
-
2013
- 2013-03-04 CN CN2013100679323A patent/CN103205011A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280054A (en) * | 1999-07-07 | 2001-01-17 | 中国科学院长春应用化学研究所 | Method for producing foamed polyolefine plastic pipe |
| CN101274999A (en) * | 2007-03-30 | 2008-10-01 | 北京化工大学 | Novel composite vesicant |
| CN102250375A (en) * | 2010-05-19 | 2011-11-23 | 北京化工大学 | Preparation method for nano-composite foaming agent based on porous inorganic material |
| CN101982497A (en) * | 2010-10-22 | 2011-03-02 | 西北师范大学 | Flame-retardant acrylonitrile-butadiene-styrene (ABS) composite material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115053371A (en) * | 2020-02-28 | 2022-09-13 | 日本瑞翁株式会社 | Composite particle for electrochemical device, method for producing same, electrode for electrochemical device, and electrochemical device |
| CN115053371B (en) * | 2020-02-28 | 2024-02-13 | 日本瑞翁株式会社 | Composite particle for electrochemical element, method for producing same, electrode for electrochemical element, and electrochemical element |
| CN112898622A (en) * | 2021-01-20 | 2021-06-04 | 江苏威久科技发展有限公司 | Foaming agent for foamed plastic and preparation method thereof |
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Application publication date: 20130717 |
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| RJ01 | Rejection of invention patent application after publication |