CN104877300A - Preparation method of foamed phenol formaldehyde resin - Google Patents
Preparation method of foamed phenol formaldehyde resin Download PDFInfo
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- CN104877300A CN104877300A CN201510255118.3A CN201510255118A CN104877300A CN 104877300 A CN104877300 A CN 104877300A CN 201510255118 A CN201510255118 A CN 201510255118A CN 104877300 A CN104877300 A CN 104877300A
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- preparation
- formaldehyde resin
- phenol formaldehyde
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- carbon black
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- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a preparation method of a foamed phenol formaldehyde resin. The foamed phenol formaldehyde resin is prepared from the following raw materials in parts by weight: 50-100 parts of phenol formaldehyde resin, 1-3 parts of carbon black, 0.2-1 part of polycarbamate and 0.1-0.5 part of manganese peroxide. The preparation method comprises the following steps: adding the phenol formaldehyde resin, carbon black and a catalyst into a reaction kettle, stirring, uniformly mixing, keeping the temperature, standing, adding the polycarbamate, stirring uniformly, heating, pressurizing, foaming and solidifying. By using the polycarbamate as the foaming agent, the foamed phenol formaldehyde resin has the advantages of simple preparation method, favorable chemical corrosion resistance, favorable heat resistance, favorable thermal insulation effect, simple raw material sources and lower price.
Description
Technical field
The present invention relates to chemical industry resin technology field, especially a kind of preparation method of foamed phenolic resin.
Background technology
Foamed phenolic resin is a kind of porous plastics obtained by foaming by resol.Compared with the material such as polystyrene foam, polyvinyl chloride foam, polyurethane foam accounting for leading market status in early days, in fire-retardant, it has special premium properties.It is lightweight, and rigidity is large, good stability of the dimension, resistance to chemical attack, good heat resistance, difficult combustion, puts out certainly, low smog, flame resistant penetrates, and meets fire without unrestrained thing, cheap, be the ideal insulated heat lagging material of the industries such as electrical equipment, instrument, building, petrochemical complex, thus attract widespread attention.
Foamed phenolic resin is generally by utilizing basic catalyst by phenol and formaldehyde solution condensation, mixed surfactant, whipping agent, curing catalysts and obtain mixture in the resol-type phenolic resin obtained, and by the mixture obtained at normal temperatures or heating and make it react to manufacture.Foamed phenolic resin resistance to chemical attack, heat-resisting, difficult combustion, flame resistant, but adopt foamed phenolic resin but very rare as the application of Wall surface heat insulating meterial, and its reason is that foamed phenolic resin involves great expense.
Summary of the invention
The object of this invention is to provide a kind of preparation method of foamed phenolic resin, the preparation method of this foamed phenolic resin can solve the higher problem of existing foamed phenolic resin price.
In order to solve the problem, the technical solution used in the present invention is:
The preparation method of foamed phenolic resin of the present invention is prepared from by the raw material of following parts by weight: 50 parts ~ 100 parts, resol, carbon black 1 part ~ 3 parts, polyurethane(s) 0.2 part ~ 1 part, catalyzer 0.1 part ~ 0.5 part; Wherein said catalyzer is Manganse Dioxide;
Preparation method is: by resol, and carbon black and catalyzer add in reactor, stirs, mixes, be incubated to 50 DEG C ~ 70 DEG C, leaves standstill 10 minutes ~ 20 minutes, then adds polyurethane(s), stir, and heats up, pressurization, foaming, solidification.
In technique scheme, scheme can be more specifically: the carbon atom number of polyurethane(s) is 200 ~ 300.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
Foamed phenolic resin of the present invention adopts polyurethane(s) to resol as whipping agent, and preparation method is simple, and well, heat insulation and preservation effect is better for products obtained therefrom resistance to chemical attack, resistance toheat, and raw material sources are simple, and price is lower.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1
The present embodiment foamed phenolic resin is prepared from by the raw material of following parts by weight: 50 parts, resol, carbon black 1 part, polyurethane(s) 0.2 part, catalyzer 0.1 part; Wherein said catalyzer is Manganse Dioxide; The carbon atom number of described polyurethane(s) is 200 ~ 300.
Preparation method is: by resol, and carbon black and catalyzer add in reactor, stirs, mixes, be incubated to 50 DEG C, leaves standstill 20 minutes, then adds polyurethane(s), stir, and heats up, pressurization, foaming, solidification.
Embodiment 2
The present embodiment foamed phenolic resin is prepared from by the raw material of following parts by weight: 75 parts, resol, carbon black 3 parts, polyurethane(s) 0.6 part, catalyzer 0.3 part; Wherein said catalyzer is Manganse Dioxide; The carbon atom number of described polyurethane(s) is 200 ~ 300.
Preparation method is: by resol, and carbon black and catalyzer add in reactor, stirs, mixes, be incubated to 70 DEG C, leaves standstill 10 minutes, then adds polyurethane(s), stir, and heats up, pressurization, foaming, solidification.
Embodiment 3
The present embodiment foamed phenolic resin is prepared from by the raw material of following parts by weight: 100 parts, resol, carbon black 2 parts, polyurethane(s) 1 part, catalyzer 0.5 part; Wherein said catalyzer is Manganse Dioxide; The carbon atom number of described polyurethane(s) is 200 ~ 300.
Preparation method is: by resol, and carbon black and catalyzer add in reactor, stirs, mixes, be incubated to 60 DEG C, leaves standstill 15 minutes, then adds polyurethane(s), stir, and heats up, pressurization, foaming, solidification.
Claims (2)
1. a preparation method for foamed phenolic resin, is characterized in that being prepared from by the raw material of following parts by weight: 50 parts ~ 100 parts, resol, carbon black 1 part ~ 3 parts, polyurethane(s) 0.2 part ~ 1 part, catalyzer 0.1 part ~ 0.5 part; Wherein said catalyzer is Manganse Dioxide;
Preparation method is: by resol, and carbon black and catalyzer add in reactor, stirs, mixes, be incubated to 50 DEG C ~ 70 DEG C, leaves standstill 10 minutes ~ 20 minutes, then adds polyurethane(s), stir, and heats up, pressurization, foaming, solidification.
2. the preparation method of foamed phenolic resin according to claim 1, is characterized in that the carbon atom number of described polyurethane(s) is 200 ~ 300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510255118.3A CN104877300A (en) | 2015-05-19 | 2015-05-19 | Preparation method of foamed phenol formaldehyde resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510255118.3A CN104877300A (en) | 2015-05-19 | 2015-05-19 | Preparation method of foamed phenol formaldehyde resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104877300A true CN104877300A (en) | 2015-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510255118.3A Pending CN104877300A (en) | 2015-05-19 | 2015-05-19 | Preparation method of foamed phenol formaldehyde resin |
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| CN (1) | CN104877300A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0344022A1 (en) * | 1988-05-27 | 1989-11-29 | Bridgestone Corporation | Methods for producing phenol resin foams and foamed laminates |
| CN101134834A (en) * | 2007-08-29 | 2008-03-05 | 北京振利高新技术有限公司 | Polyurethanes compound modified phenolic foam plastic and method for preparing same |
| EP2530113A1 (en) * | 2011-05-27 | 2012-12-05 | Sto Ag | Compound foam material, heat insulation element made of compound foam material and method for producing a compound foam material |
| CN103209830A (en) * | 2010-07-16 | 2013-07-17 | 阿克塞尔集团有限公司 | Composite materials and uses thereof |
-
2015
- 2015-05-19 CN CN201510255118.3A patent/CN104877300A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0344022A1 (en) * | 1988-05-27 | 1989-11-29 | Bridgestone Corporation | Methods for producing phenol resin foams and foamed laminates |
| CN101134834A (en) * | 2007-08-29 | 2008-03-05 | 北京振利高新技术有限公司 | Polyurethanes compound modified phenolic foam plastic and method for preparing same |
| CN103209830A (en) * | 2010-07-16 | 2013-07-17 | 阿克塞尔集团有限公司 | Composite materials and uses thereof |
| EP2530113A1 (en) * | 2011-05-27 | 2012-12-05 | Sto Ag | Compound foam material, heat insulation element made of compound foam material and method for producing a compound foam material |
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Application publication date: 20150902 |
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| RJ01 | Rejection of invention patent application after publication |