CN107553804A - The foaming method of polyurethane foam - Google Patents
The foaming method of polyurethane foam Download PDFInfo
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- CN107553804A CN107553804A CN201710805485.5A CN201710805485A CN107553804A CN 107553804 A CN107553804 A CN 107553804A CN 201710805485 A CN201710805485 A CN 201710805485A CN 107553804 A CN107553804 A CN 107553804A
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- foaming
- polyurethane foam
- reaction kettle
- foamable reaction
- polyurethane
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Abstract
The present invention relates to a kind of foaming method of polyurethane foam, mainly solves in polyurethane foam craft foaming process in the prior art, there is residual in reactor, and manual cleaning reactor labor intensity is big, operating efficiency is low, influences the problem of product quality.The present invention includes by using a kind of new polyurethane foam method：(1) under condition of negative pressure, internally adsorbed polymer film on hollow foamable reaction kettle inwall；(2) foamed slurry being stirred in advance is added in foamable reaction kettle；(3) start foaming upon completion of the addition and form polyurethane foamed material；(4) polyurethane foamed material and polymeric membrane are taken out together after the completion of foaming, makes the technical scheme of noresidue in foamable reaction kettle, preferably solve above mentioned problem, available in the industrial foam production of polyurethane foam.
Description
Technical field
The present invention is to be related to the foaming method of polyurethane foam.
Background technology
Polyurethane foam is widely used in automobile industry, but is sent out during manual polyurethane foam
The cleaning of residue remains industry problems in bubble reactor, therefore in foaming process, how to cause nothing in foamable reaction kettle
Residual, without manual cleaning foamable reaction kettle, improving product quality and operating efficiency turns into urgent need in manual foaming process and solves
Technical problem.
Chinese patent CN102391540 discloses the foaming side that brown paper is placed in a kind of foaming by hand in foaming chamber interior wall
Method.This method heifer paper is easily sticked in polyurethane foam, still needs worker's manual cleanup brown paper after expanding, is worked
Intensity is big, operating efficiency is low, poor product quality.
The content of the invention
The technical problems to be solved by the invention are that prior art has reaction in polyurethane foam craft foaming process
There is residual in kettle, manual cleaning reactor labor intensity is big, operating efficiency is low, the problem of being had an impact to product quality, there is provided
A kind of foaming method of new polyurethane foam.Using the foaming method, there is noresidue in reactor, manual cleaning can be reduced
The labor intensity of reactor, improve operating efficiency, improve product quality the advantages of.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：A kind of foaming method of polyurethane foam
Comprise the following steps：(1) under condition of negative pressure, internally adsorbed polymer film on hollow foamable reaction kettle inwall；(2) will be pre-
The foamed slurry being first stirred is added in foamable reaction kettle；(3) start foaming upon completion of the addition and form polyurethane foamed material；
(4) polyurethane foamed material and polymeric membrane are taken out together after the completion of foaming, makes noresidue in foamable reaction kettle.
In above-mentioned technical proposal, it is preferable that negative-pressure adsorption polymeric membrane is used in foaming process, makes high score film seamless applying
On foamable reaction kettle inwall.
In above-mentioned technical proposal, it is preferable that the vacuum of negative pressure is -0.01MPa~-0.1MPa.
In above-mentioned technical proposal, it is preferable that condition of negative pressure is by selected from least one of vavuum pump or induced-draught electric motor equipment
Formed.
In above-mentioned technical proposal, it is preferable that macromolecule membrane is in polyethylene, polyvinyl chloride, polypropylene or polyamide
At least one
In above-mentioned technical proposal, it is preferable that polymeric membrane thickness is 0.2~1mm..
In above-mentioned technical proposal, it is preferable that polyurethane foam, be made up of component A and component B, component A and component B weight
Amount is than being 1：1~1.4, wherein：Component A includes by weight percentage：PPG I：10~40%, PPG
Ⅱ：20~40%, PEPA：10~30%, foam stabiliser：1~5%, catalyst：2~4%, physical blowing agent：10
~20%, water：0.1~1.5%, auxiliary agent：0.1~1%；In wherein component A：PPG I is 4~5.5 degrees of functionality, and number is equal
Molecular weight is 300~500 PPG；PPG II is 2~3 degrees of functionality, and number-average molecular weight is the poly- of 200-600
Ethoxylated polyhydric alcohol；PEPA is 2~3 degrees of functionality, and hydroxyl value is 200~500 PEPA；Foam stabiliser is non-hydrolytic
At least one of silicon-carbon class surfactant or polysiloxane type surfactant；Physical blowing agent be a fluorine dichloroethanes,
In HFC-365,1,1,1,3,3- pentafluoropropanes, 1,1,1,2- HFC-134as, Difluoroethane or heptafluoro-propane
It is at least one；Catalyst is potassium acetate, isooctyl acid potassium, triethylene diamine, dibutyl tin laurate or N, N ', (diformazans of N '-three
At least one of base aminopropyl) Hexahydrotriazine；Auxiliary agent is selected from least one of mill base, antioxidant or dispersant, wherein color
Starch Black HI for TEGOCOLOR companies, at least one of the 031-9NN015 of Blue2 or Bao Meishi companies；Antioxidant
For at least one of antioxidant 245, antioxidant 1010 or antioxidant 1035；Dispersant is OMG Borchers companies
At least one of Gen0451 or Ger0851；Component B is polymethine polyphenyl polyisocyanate.
In the present invention, the present inventor to produce in foamable reaction kettle using motor device or vavuum pump in foaming process
Negative pressure, so as to which smoothly the seamless absorption of polymeric membrane internally on hollow foamable reaction kettle inwall, be foamed in foaming process
Slurry does not contact foamable reaction kettle, and polymeric membrane is directly removed after the completion of foaming so that noresidue in foamable reaction kettle, without
Manual cleaning foamable reaction kettle, reduces labor intensity, improves operating efficiency, simultaneously because noresidue in foamable reaction kettle,
Reduce the influence to subsequent reactions product, improve product quality, achieve preferable technique effect.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
Embodiment 1
A kind of foaming method of polyurethane foam：
(1) component A is prepared:100kg；PPG I (degree of functionality 4, number-average molecular weight 300)：20kg, polyethers are more
First alcohol II (degree of functionality 2, number-average molecular weight 200)：40kg, PEPA (degree of functionality 2, number-average molecular weight 300)：
20kg, non-hydrolytic silicon-carbon class surfactant：4kg, N, N ', N '-three (dimethylaminopropyl) Hexahydrotriazine：4kg, seven fluorine third
Alkane：10kg, water：1.5kg, mill base Black HI (TEGOCOLOR companies)：0.5kg；
(2) component B, polymethine polyphenyl polyisocyanate are prepared：110kg, component A and component B is mixed；
(3) vaccum pump unit generation -0.99MPa negative pressure is used, under the condition of negative pressure, internally hollow foaming is anti-
Answer and polyethylene film is adsorbed on kettle inwall, the thickness of polyethylene film is 0.2mm；
(4) foamed slurry being stirred in advance is added in foaming kettle；
(5) start foaming upon completion of the addition and form polyurethane foamed material；
(6) polyurethane foamed material and polyethylene film are taken out together after the completion of foaming, without residual in foamable reaction kettle
Stay.
Embodiment 2
A kind of foaming method of polyurethane foam
(1) component A is prepared:100kg；PPG I (degree of functionality 5.5, number-average molecular weight 500)：40kg, polyethers
Polyalcohol II (degree of functionality 3, number-average molecular weight 600)：20kg, (degree of functionality 3, number-average molecular weight are PEPA
500)：16kg, polysiloxane type surfactant：1kg, triethylene diamine：2kg, a fluorine dichloroethanes：20kg, water：0.1kg,
Dispersant Gen0451 (OMG Borchers companies)：0.9kg；
(2) component B is prepared：Polymethine polyphenyl polyisocyanate：140kg, component A and component B is mixed；
(3) induced-draught electric motor equipment generation -0.05Mpa negative pressure, under the condition of negative pressure, hollow foaming internally are used
Polyamide film is adsorbed on reactor inwall, the thickness of polyamide film is 1mm；
(4) foamed slurry being stirred in advance is added in foaming kettle；
(5) start foaming upon completion of the addition and form polyurethane foamed material；
(6) polyurethane foamed material and polyamide film are taken out together after the completion of foaming, without residual in foamable reaction kettle
Stay.
Embodiment 3
A kind of foaming method of polyurethane foam：
(1) component A is prepared:100kg；PPG I (degree of functionality 5, number-average molecular weight 400)：10kg, polyethers are more
First alcohol II (degree of functionality 2.5, number-average molecular weight 500)：37kg, (degree of functionality 2.5, number-average molecular weight are PEPA
400)：30kg, non-hydrolytic silicon-carbon class surfactant：3.5kg, dibutyl tin laurate：3kg, 1,1,1,3,3- five fluorine fourth
Alkane：15kg, water：1kg, antioxidant 1010：0.5kg；
(2) component B is prepared：Polymethine polyphenyl polyisocyanate：120kg, component A and component B is mixed；
(3) induced-draught electric motor equipment generation -0.1Mpa negative pressure, under the condition of negative pressure, hollow foaming internally are used
Polypropylene film is adsorbed on reactor inwall, the thickness of poly- polypropylene film is 0.5mm；
(4) foamed slurry being stirred in advance is added in foaming kettle；
(5) start foaming upon completion of the addition and form polyurethane foamed material；
(6) polyurethane foamed material and polypropylene film are taken out together after the completion of foaming, without residual in foamable reaction kettle
Stay.
Embodiment 4
A kind of foaming method of polyurethane foam：
(1) component A is prepared:100kg；PPG I (degree of functionality 4.5, number-average molecular weight 400)：20kg, polyethers
Polyalcohol II (degree of functionality 2, number-average molecular weight 400)：30kg, (degree of functionality 2, number-average molecular weight are PEPA
300)：30kg, polysiloxane type surfactant：2kg, isooctyl acid potassium：2kg, HFA 134a：15kg, water：
0.5kg, antioxidant 245：0.5kg；
(2) component B is prepared：Polymethine polyphenyl polyisocyanate：130kg, component A and component B is mixed；
(3) induced-draught electric motor equipment generation -0.08Mpa negative pressure, under the condition of negative pressure, hollow foaming internally are used
Polypropylene film is adsorbed on reactor inwall, the thickness of poly- polypropylene film is 0.3mm；
(4) foamed slurry being stirred in advance is added in foaming kettle；
(5) start foaming upon completion of the addition and form polyurethane foamed material；
(6) polyurethane foamed material and polypropylene film are taken out together after the completion of foaming, without residual in foamable reaction kettle
Stay.
Embodiment 5
A kind of foaming method of polyurethane foam：
(1) component A is prepared:100kg；PPG I (degree of functionality 4, number-average molecular weight 300)：20kg, polyethers are more
First alcohol II (degree of functionality 2, number-average molecular weight 400)：35kg, PEPA (degree of functionality 2, number-average molecular weight 300)：
30kg, polysiloxane type surfactant：2kg, triethylene diamine：2kg, HFA 134a：10kg, water：0.5kg,
The 031-9NN015 of Bao Meishi companies：0.5kg；
(2) component B is prepared：Polymethine polyphenyl polyisocyanate：120kg, component A and component B is mixed；
(3) induced-draught electric motor equipment generation -0.03Mpa negative pressure, under the condition of negative pressure, hollow foaming internally are used
Polypropylene film is adsorbed on reactor inwall, the thickness of poly- polypropylene film is 0.5mm；
(4) foamed slurry being stirred in advance is added in foaming kettle；
(5) start foaming upon completion of the addition and form polyurethane foamed material；
(6) polyurethane foamed material and polypropylene film are taken out together after the completion of foaming, makes nothing in foamable reaction kettle
Residual.
Comparative example 1
A kind of foaming method of polyurethane foam：
(1) component A is prepared:100kg；PPG I (degree of functionality 4, number-average molecular weight 300)：20kg, polyethers are more
First alcohol II (degree of functionality 2, number-average molecular weight 400)：35kg, PEPA (degree of functionality 2, number-average molecular weight 300)：
30kg, polysiloxane type surfactant：2kg, triethylene diamine：2kg, HFA 134a：10kg, water：0.5kg,
The 031-9NN015 of Bao Meishi companies：0.5kg；
(2) component B is prepared：Polymethine polyphenyl polyisocyanate：120kg, component A and component B is mixed；
(3) foamed slurry being stirred in advance is added in foaming kettle；
(4) start foaming upon completion of the addition and form polyurethane foamed material, by polyurethane foam material after the completion of foaming
Material takes out.Now there is residual in foamable reaction kettle, it is necessary to manual cleaning reactor.
Claims (6)
1. a kind of foaming method of polyurethane foam, comprises the following steps：
(1) under condition of negative pressure, internally adsorbed polymer film on hollow foamable reaction kettle inwall；
(2) foamed slurry being stirred in advance is added in foamable reaction kettle；
(3) start foaming upon completion of the addition and form polyurethane foamed material；
(4) polyurethane foamed material and polymeric membrane are taken out together after the completion of foaming, makes noresidue in foamable reaction kettle.
2. the foaming method of polyurethane foam according to claim 1, it is characterised in that inhaled in foaming process using negative pressure
Attached polymeric membrane, make polymeric membrane seamless applying on foamable reaction kettle inwall.
3. the foaming method of polyurethane foam according to claim 2, it is characterised in that the vacuum of negative pressure for-
0.01MPa~-0.1MPa.
4. the foaming method of polyurethane foam according to claim 1, it is characterised in that condition of negative pressure is by selected from vavuum pump
Or at least one of induced-draught electric motor equipment is formed.
5. the foaming method of polyurethane foam according to claim 1, it is characterised in that polymeric membrane is selected from polyethylene, gathered
At least one of vinyl chloride, polypropylene or polyamide.
6. the foaming method of polyurethane foam according to claim 1, it is characterised in that polymeric membrane thickness be 0.2~
1mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805485.5A CN107553804A (en) | 2017-09-08 | 2017-09-08 | The foaming method of polyurethane foam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805485.5A CN107553804A (en) | 2017-09-08 | 2017-09-08 | The foaming method of polyurethane foam |
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| Publication Number | Publication Date |
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Family
ID=60980286
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| CN201710805485.5A Pending CN107553804A (en) | 2017-09-08 | 2017-09-08 | The foaming method of polyurethane foam |
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Citations (10)
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|---|---|---|---|---|
| CN2399189Y (en) * | 1999-11-26 | 2000-10-04 | 深圳市昌泰兴矽胶有限公司 | Mold for producing polyurethane molded article |
| CN102391540A (en) * | 2011-09-14 | 2012-03-28 | 溧阳市山湖实业有限公司汽车装饰材料分公司 | Foaming method for preparing polyurethane foam |
| CN102729370A (en) * | 2011-03-30 | 2012-10-17 | 信越聚合物株式会社 | Mold release film |
| CN103012711A (en) * | 2011-09-21 | 2013-04-03 | 绍兴市恒丰聚氨酯实业有限公司 | Hard polyurethane molding foam negative pressure foaming raw material formula and hard polyurethane molding foam negative pressure foaming production method |
| CN103182767A (en) * | 2011-12-27 | 2013-07-03 | 山田尖端科技株式会社 | Method for resin molding and resin molding apparatus |
| CN203409946U (en) * | 2013-07-19 | 2014-01-29 | 北京豪特耐管道设备有限公司 | Automatic demoulding and foaming box |
| CN103934948A (en) * | 2013-01-23 | 2014-07-23 | 谢孟峰 | Manufacturing method of PU molded product |
| CN104943050A (en) * | 2015-05-01 | 2015-09-30 | 长春富维—江森自控汽车饰件系统有限公司 | High-resilience polyurethane foam vacuum foaming method |
| CN105985503A (en) * | 2016-06-20 | 2016-10-05 | 海信容声(广东)冰箱有限公司 | Polyurethane reaction composition for negative pressure foaming and method for preparing polyurethane foam by using composition |
| CN106064440A (en) * | 2015-04-24 | 2016-11-02 | 本田技研工业株式会社 | Polyurethane foam formed body manufactures device |
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2017
- 2017-09-08 CN CN201710805485.5A patent/CN107553804A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2399189Y (en) * | 1999-11-26 | 2000-10-04 | 深圳市昌泰兴矽胶有限公司 | Mold for producing polyurethane molded article |
| CN102729370A (en) * | 2011-03-30 | 2012-10-17 | 信越聚合物株式会社 | Mold release film |
| CN102391540A (en) * | 2011-09-14 | 2012-03-28 | 溧阳市山湖实业有限公司汽车装饰材料分公司 | Foaming method for preparing polyurethane foam |
| CN103012711A (en) * | 2011-09-21 | 2013-04-03 | 绍兴市恒丰聚氨酯实业有限公司 | Hard polyurethane molding foam negative pressure foaming raw material formula and hard polyurethane molding foam negative pressure foaming production method |
| CN103182767A (en) * | 2011-12-27 | 2013-07-03 | 山田尖端科技株式会社 | Method for resin molding and resin molding apparatus |
| CN103934948A (en) * | 2013-01-23 | 2014-07-23 | 谢孟峰 | Manufacturing method of PU molded product |
| CN203409946U (en) * | 2013-07-19 | 2014-01-29 | 北京豪特耐管道设备有限公司 | Automatic demoulding and foaming box |
| CN106064440A (en) * | 2015-04-24 | 2016-11-02 | 本田技研工业株式会社 | Polyurethane foam formed body manufactures device |
| CN104943050A (en) * | 2015-05-01 | 2015-09-30 | 长春富维—江森自控汽车饰件系统有限公司 | High-resilience polyurethane foam vacuum foaming method |
| CN105985503A (en) * | 2016-06-20 | 2016-10-05 | 海信容声(广东)冰箱有限公司 | Polyurethane reaction composition for negative pressure foaming and method for preparing polyurethane foam by using composition |
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Application publication date: 20180109 |