CN104292448A - Preparation method and application of flame-retardant polyether containing N and Br - Google Patents
Preparation method and application of flame-retardant polyether containing N and Br Download PDFInfo
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- CN104292448A CN104292448A CN201410511867.3A CN201410511867A CN104292448A CN 104292448 A CN104292448 A CN 104292448A CN 201410511867 A CN201410511867 A CN 201410511867A CN 104292448 A CN104292448 A CN 104292448A
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Abstract
The invention discloses a preparation method and application of flame-retardant polyether containing nitrogen and bromine. The flame-retardant polyether contains N and Br elements and is reactive flame-retardant polyether. According to the preparation method, the flame-retardant polyether containing N and Br is prepared from the following raw materials in parts by weight: 5-10 parts of ethylenediamine, 20-35 parts of dibromoneopentyl glycol, 0.5-2.0 parts of dimethylamine and 53-74.5 parts of epoxy propane. Polyurethane foaming plastics prepared from the flame-retardant polyether have a favorable flame-retardant effect and have the advantages of stable flame retardance and better foam quality as comparison with polyurethane foaming plastics prepared by additionally adding a flame retardant.
Description
Technical field
The present invention relates to a kind of preparation method of organic high molecular compound, specifically a kind of preparation method of nitrogenous brominated flame retarding polyether and the application of obtained product.
Background technology
Conventional polyurethanes porous plastics is inflammable material, for reaching flame-retardancy requirements, usually adds fire retardant when preparing urethane foam.But polyurethane material quality prepared by additional fire retardant is affected, and have effusion along with passing additional type fire retardant duration of service, flame retardant effect worse and worse.
Summary of the invention
In order to overcome prior art Problems existing, the object of this invention is to provide a kind of preparation method of nitrogenous brominated flame retarding polyether and the application of obtained product, the method is simple, urethane foam prepared by the flame retarding polyether obtained has good flame retardant effect, the urethane foam flame retardant properties prepared relative to additional fire retardant is stablized, and froth quality is better.
The object of the invention is to be achieved through the following technical solutions:
A preparation method for nitrogenous brominated flame retarding polyether, is characterized in that: the method with quadrol, dibromoneopentyl glycol altogether for initiator; Dimethylamine is catalyzer; Prepare with propylene oxide ring-opening polymerization, obtain flame retarding polyether, comprise the steps:
1) raw material weight number is: quadrol 5-10; Dibromoneopentyl glycol 20-35; Dimethylamine 0.5-2.0; Propylene oxide 53-74.5;
2) quadrol, dibromoneopentyl glycol are put in reactor, then drop into dimethylamine, then at 80-130 DEG C of temperature, pass into propylene oxide, after propylene oxide adds end, stir 1-3 hour under remaining on 80-130 DEG C of temperature, system is fully reacted;
3) vacuumize, filter and obtain flame retarding polyether.
In the present invention, described dimethylamine is mass ratio is 40% dimethylamine agueous solution.
The application of flame retarding polyether in polyurethane foam that a kind of preparation method of nitrogenous brominated flame retarding polyether obtains.The flame retarding polyether obtained has good flame retardant effect, and the urethane foam flame retardant properties prepared relative to additional fire retardant is stablized, and froth quality is better.
Preparation method of the present invention is simple, and containing N, Br element on the flame retarding polyether molecule obtained, have cooperative flame retardant effect, the polyurethane foam quality prepared with it is good, flame retardant effect obviously and foam flame retardant properties can not As time goes on be deteriorated.
Embodiment
Below by specific embodiment, the present invention is further illustrated, but each embodiment is not all to concrete restriction of the present invention.
Embodiment 1
A preparation method for nitrogenous brominated flame retarding polyether, with quadrol, dibromoneopentyl glycol altogether for initiator; Dimethylamine is catalyzer; Prepare with propylene oxide ring-opening polymerization.Comprise the steps:
1) raw material weight number is: quadrol (Gutian, Nanjing Chemical Co., Ltd.) 5 parts; Dibromoneopentyl glycol (Shanghai Rui Shuo Chemical Co., Ltd.) 20 parts; Dimethylamine (Gutian, Nanjing Chemical Co., Ltd.) 0.5 part; Dimethylamine to be mass percent be 40% dimethylamine agueous solution.Propylene oxide (Shandong Bin Hua Group Co., Ltd) 73.5 parts;
2) quadrol, dibromoneopentyl glycol are put in reactor, then drop into dimethylamine, then at 130 DEG C of temperature, pass into propylene oxide, after propylene oxide adds end, stir 1 hour under remaining on 130 DEG C of temperature, system is fully reacted, then vacuumize, filter to obtain flame retarding polyether.
Embodiment 2
The preparation method of another a kind of nitrogenous brominated flame retarding polyether, with quadrol, dibromoneopentyl glycol altogether for initiator; Dimethylamine is catalyzer; Prepare with propylene oxide ring-opening polymerization.Comprise the steps:
Raw material weight number is: quadrol (Gutian, Nanjing Chemical Co., Ltd.) 10 parts; Dibromoneopentyl glycol (Shanghai Rui Shuo Chemical Co., Ltd.) 35 parts; Dimethylamine (Gutian, Nanjing Chemical Co., Ltd.) 2 parts; Propylene oxide (Shandong Bin Hua Group Co., Ltd) 53 parts;
Quadrol, dibromoneopentyl glycol are put in reactor, then drops into dimethylamine, then at 110 DEG C of temperature, pass into propylene oxide, after propylene oxide adds end, stir 3 hours at 110 DEG C of temperature, system is fully reacted, then vacuumize, filter to obtain flame retarding polyether.
Embodiment 3
The application of the flame retarding polyether that above-mentioned preparation method obtains in polyurethane foam, gets flame retarding polyether 100 parts, silicone oil 2 parts, triethylene diamine catalyzer 0.2 part, 3 parts, water, isocyanic ester 110 parts, and high-speed stirring mixing post-foaming obtains polyurethane foam product.As time goes on fire block articles successful and foam flame retardant properties can not be deteriorated.
Claims (3)
1. a preparation method for nitrogenous brominated flame retarding polyether, is characterized in that: the method with quadrol, dibromoneopentyl glycol altogether for initiator; Dimethylamine is catalyzer; Prepare with propylene oxide ring-opening polymerization, obtain flame retarding polyether, comprise the steps:
1) raw material weight number is: quadrol 5-10; Dibromoneopentyl glycol 20-35; Dimethylamine 0.5-2.0; Propylene oxide 53-74.5;
2) quadrol, dibromoneopentyl glycol are put in reactor, then drop into dimethylamine, then at 80-130 DEG C of temperature, pass into propylene oxide, after propylene oxide adds end, stir 1-3 hour under remaining on 80-130 DEG C of temperature, system is fully reacted;
3) vacuumize, filter and obtain flame retarding polyether.
2. the preparation method of nitrogenous brominated flame retarding polyether according to claim 1, is characterized in that: described dimethylamine is mass ratio is 40% dimethylamine agueous solution.
3. the application of flame retarding polyether in polyurethane foam that obtain of the preparation method of nitrogenous brominated flame retarding polyether described in a claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511867.3A CN104292448A (en) | 2014-09-29 | 2014-09-29 | Preparation method and application of flame-retardant polyether containing N and Br |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511867.3A CN104292448A (en) | 2014-09-29 | 2014-09-29 | Preparation method and application of flame-retardant polyether containing N and Br |
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| CN104292448A true CN104292448A (en) | 2015-01-21 |
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| CN201410511867.3A Pending CN104292448A (en) | 2014-09-29 | 2014-09-29 | Preparation method and application of flame-retardant polyether containing N and Br |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105111429A (en) * | 2015-09-06 | 2015-12-02 | 江阴职业技术学院 | Preparation method and application of brominated flame-retardant polyether glycol |
| CN106146779A (en) * | 2016-06-29 | 2016-11-23 | 句容宁武新材料股份有限公司 | A kind of preparation method of polyurethane foam flame retardant polyether polyol |
| CN110582523A (en) * | 2017-05-05 | 2019-12-17 | 巴斯夫欧洲公司 | Rigid polyurethane foams having improved flammability properties |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734443A (en) * | 1986-04-21 | 1988-03-29 | The Dow Chemical Company | Polyurethanes with mono-ol/diol haloneocarbyl polyethers and their esters |
| JP2004155856A (en) * | 2002-11-05 | 2004-06-03 | Kao Corp | Method for producing polyurethane foam |
| CN102585148A (en) * | 2011-12-28 | 2012-07-18 | 烟台万华聚氨酯股份有限公司 | Composition for preparing highly fire-resistant polyisocyanurate foam |
| CN103642026A (en) * | 2013-11-28 | 2014-03-19 | 山东蓝星东大化工有限责任公司 | Preparation method of hard bubble polyether glycol for spraying |
-
2014
- 2014-09-29 CN CN201410511867.3A patent/CN104292448A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734443A (en) * | 1986-04-21 | 1988-03-29 | The Dow Chemical Company | Polyurethanes with mono-ol/diol haloneocarbyl polyethers and their esters |
| JP2004155856A (en) * | 2002-11-05 | 2004-06-03 | Kao Corp | Method for producing polyurethane foam |
| CN102585148A (en) * | 2011-12-28 | 2012-07-18 | 烟台万华聚氨酯股份有限公司 | Composition for preparing highly fire-resistant polyisocyanurate foam |
| CN103642026A (en) * | 2013-11-28 | 2014-03-19 | 山东蓝星东大化工有限责任公司 | Preparation method of hard bubble polyether glycol for spraying |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105111429A (en) * | 2015-09-06 | 2015-12-02 | 江阴职业技术学院 | Preparation method and application of brominated flame-retardant polyether glycol |
| CN106146779A (en) * | 2016-06-29 | 2016-11-23 | 句容宁武新材料股份有限公司 | A kind of preparation method of polyurethane foam flame retardant polyether polyol |
| CN110582523A (en) * | 2017-05-05 | 2019-12-17 | 巴斯夫欧洲公司 | Rigid polyurethane foams having improved flammability properties |
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