CN107556448A - A kind of polyurethane elastomer and preparation method thereof - Google Patents
A kind of polyurethane elastomer and preparation method thereof Download PDFInfo
- Publication number
- CN107556448A CN107556448A CN201710712410.2A CN201710712410A CN107556448A CN 107556448 A CN107556448 A CN 107556448A CN 201710712410 A CN201710712410 A CN 201710712410A CN 107556448 A CN107556448 A CN 107556448A
- Authority
- CN
- China
- Prior art keywords
- mannich
- polyethers
- elastomer
- isocyanates
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RLSSMJSEOOYNOY-UHFFFAOYSA-N Cc1cccc(O)c1 Chemical compound Cc1cccc(O)c1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention belongs to technical field of polymer materials, disclose a kind of polyurethane elastomer and preparation method thereof, the raw material composition of the elastomer includes Mannich polyethers, isocyanates, it is by the way that the Mannich polyethers is mixed with catalyst, and the lower addition isocyanates is being stirred continuously to react, question response terminates rear deaeration, solidification gained.Contain Mannich polyether component in elastomer formulations provided by the invention, because containing nitrogen-atoms in its structure, catalytic action can be played to polyurethane reaction, therefore, the introducing of Mannich polyether component adds the reactivity of system, the progress of polyurethane reaction is accelerated, effectively reduces the dosage of heavy metal catalyst, reduces environmental toxicity and biology is poisoned；By adjusting the dosage of Mannich polyethers, the hardness of polyurethane elastomer can also be adjusted, and improves the anti-flammability of polyurethane elastomer.The preparation method of elastic part provided by the invention is simple to operate, and the cycle is short, and cost is low, is adapted to large-scale promotion application.
Description
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of polyurethane elastomer and preparation method thereof.
Background technology
Polyurethane elastomer (PUE), be a kind of special material of performance between plastics and rubber, have high intensity,
The advantages that abrasion performance, tear-proof, flexural property are good, oil resistant, it is widely used in making sheet material, rubber roll, rubber tire, waterproof material, paving
Package material, conveyer belt etc..Common polyurethane elastomer typically uses reacted constituent of the PPG as offer active hydrogen,
Obtained elastomer hardness is relatively low, and tearing strength is poor, it is difficult to meet the pressure-resistant tear-resistant requirement for waiting product of needs high rigidity, because
How this, be improved to improve its hardness and resistance to compression, tearing toughness, it has also become currently should to the formula of polyurethane elastomer
The study hotspot in field.
At present, the preparation of the polyurethane elastomer of high rigidity mainly uses pre-polymerization method, the i.e. side by improving hard segment content
Method improves the hardness of elastomer.For pre-polymerization method, the dosage of chain extender must just be increased by wanting raising hard segment content, then
In addition amine chain extender can be also added in order to improve the reaction speed of system in some elastomer formulations, such as：3,3 '-two
Chloro- 4,4 '-diaminodiphenyl-methane (MOCA), 3,5- dimethythiotoluene diamines (E-300, DMTDA), 3,5- diethyl
Toluenediamine (E-100, DETDA) etc., the production and use of these amine chain extenders all can be to human body or environmental dangers.
Further, since polyurethane products need to turn into solid by liquid after chemical reaction, weight would generally be used in this course of reaction
The metallic catalyst such as compound such as tin class, lead class, mercury class, these are all the catalyst harmful to biology and environment.Such as：China
Patent document CN105801812A discloses a kind of polyurethane elastomer and preparation method thereof, it uses organo-bismuth or organic
Tin catalyst.And due in general PPG generally existing and the partially slow phenomenon of isocyanates reaction speed, therefore react
Need to add more catalyst in system, and excessive introducing these catalyst can cause polyurethane elastomer product not meet
Environmental requirement.
In consideration of it, this area is there is an urgent need to seek new polyurethane elastomer formula, to ensure that its high rigidity and environmental protection will
The dosage of chain extender and catalyst is reduced while asking.
The content of the invention
Therefore, the technical problem to be solved in the present invention is in the chain extension in overcoming existing High Hardness Polyurethane Elastomer to be formulated
The dosage of agent and heavy metal catalyst is big, the defects of not meeting environmental requirement, small so as to provide a kind of heavy metal catalyst dosage
And it can omit using polyurethane elastomer of chain extender and preparation method thereof.
The application of Mannich polyethers in the elastomer.
Preferably, the Mannich polyethers is phenylol Mannich polyethers.
Preferably, the Mannich polyethers is obtained by Mannich base and the aggregated reaction of epoxide, described graceful
Buddhist nun, which wishes alkali, has following structure：
One or more of the epoxides in oxirane, expoxy propane, epoxy butane or epoxychloropropane.
Preferably, the hydroxyl value of the Mannich polyethers is 200~700mgKOH/g.
Preferably, the elastomer is polyurethane elastomer；The cell diameter of the elastomer is 0~0.5mm.
A kind of elastomer, its raw material composition include Mannich polyethers, isocyanates.
Preferably, in parts by weight, its raw material composition includes：
1~30 part of Mannich polyethers；
20~53 parts of isocyanates；
0.0005~0.001 part of catalyst.
Preferably, the Mannich polyethers is phenylol Mannich polyethers.
Preferably, the Mannich polyethers is obtained by Mannich base and the aggregated reaction of epoxide, described graceful
Buddhist nun, which wishes alkali, has following structure：
One or more of the epoxides in oxirane, expoxy propane, epoxy butane or epoxychloropropane.
Preferably, the hydroxyl value of the Mannich polyethers is 200~700mgKOH/g.
Preferably, the isocyanates be polymethylene phenyl isocyanate, 4,4 '-dibenzyl diisocyanate, first
Benzene -2,4- diisocyanate or hexamethylene diisocyanate；The catalyst is dibutyl tin laurate.
Preferably, in addition to 0.05~0.2 part of defoamer.
Preferably, in addition to polyethylene glycol, polypropylene glycol, polytetrahydrofuran diol, tetrahydrofuran-propylene oxide are common
One or more in polyglycols.
Preferably, the cell diameter of the elastomer is 0~0.5mm.
Method for producing elastomers described above, it is characterised in that comprise the following steps：
The Mannich polyethers is mixed with the catalyst, and lower the isocyanates is added to occur being stirred continuously
Reaction, question response terminate rear deaeration, solidification, produce the elastomer.
Preferably, also include before the isocyanates is added, by the defoamer and/or the polyethylene glycol,
The one or more of and Mannich in polypropylene glycol, polytetrahydrofuran diol or tetrahydrofuran-propylene oxide copolymer glycols
The step of polyethers mixes with the mixture of the catalyst.
The above-mentioned technical proposal of the present invention, has the following advantages that：
1. the present invention is applied in elastomer using by Mannich polyethers first, so as to make full use of inside Mannich polyethers
Nitrogen-atoms catalysis polyurethane reaction, reduce the content of beary metal in elastomer and improve the hardness of elastomer.
2. contain Mannich polyether component in elastomer formulations provided by the invention, because containing a certain amount of nitrogen in its structure
Atom, catalytic action can be played to polyurethane reaction, therefore, the introducing of Mannich polyether component adds the reaction work of system
Property, the progress of polyurethane reaction is accelerated, effectively reduces the dosage of heavy metal catalyst, reduces environmental toxicity and biology
Poison；By adjusting the dosage of Mannich polyethers, the hardness of polyurethane elastomer can also be adjusted, and improves polyurethane elastomer
Anti-flammability.
3. the preparation method of elastic part provided by the invention is simple to operate, the cycle is short, and cost is low, is easy to mass produce
Using.
Embodiment
Technical scheme will be clearly and completely described below, it is clear that described embodiment is this hair
Bright part of the embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
There is the every other embodiment made and obtained under the premise of creative work, belong to the scope of protection of the invention.In addition, below
As long as it is mutual not form conflict can each other for involved technical characteristic in described different embodiments of the present invention
With reference to.
PPG described in following embodiments is PPOX ethoxylated polyhydric alcohol；PM200 is polymethylene polyphenyl isocyanic acid
Ester.
Embodiment 1
162g 37wt% formalins or 66g 90wt% paraformaldehydes are added to 210.28g in 20-30min
In diethanol amine, 1-2h is reacted at 50-60 DEG C, then at 80-100 DEG C, vacuum dehydration to system moisture ＜ 0.5%, so
94.1g phenol is added afterwards, is reacted 2h at 80-90 DEG C, is obtained Mannich base, its structure is：
Embodiment 2
By 223g diethanol amine input 1L three-necked flask, it is heated to 60 DEG C or so and starts to put into paraformaldehyde powder in batches
End, the input 16.5g paraformaldehydes per 15min, point 4 batches input, material temperature is controlled to be incubated 2h at 70 DEG C after the end that all feeds intake, most
After be warming up to 100 DEG C of decompression dehydrations, material moisture mass fraction<Stop dehydration when 0.3%, 3- ethoxys -1,3- are prepared
Oxazolidine, reaction yield 99%.234.14g nonyl phenols are added in 1L three-necked flask, be warming up to 70 DEG C or so and start to be added dropwise
3- ethoxys -1,3-oxazoles alkane, 0.5h is interior to be added dropwise about 249g 3- ethoxys -1,3-oxazoles alkane, 80 DEG C of insulations after being added dropwise
1h, Mannich base is obtained, its structure is：
Embodiment 3
The Mannich base for taking 340g to be prepared by embodiment 1 is placed in autoclave, adds 6.8gKOH, vacuumizes simultaneously nitrogen
Gas is replaced 3 times, opens and expoxy propane is gradually slowly introducing after stirring is then warming up to 80 DEG C, control material temperature is at 85 DEG C or so, always
127g expoxy propane is about passed through altogether, then in 85 DEG C of insulated and stirred 1h, degassing 0.5h is finally vacuumized at 90 DEG C, is put while hot
Material, obtains product Mannich polyethers crude product, and crude product, which is evaporated under reduced pressure, to be removed small molecule and add after polyethers exquisiteness agent removes potassium ion
Obtain finished product Mannich polyethers.
After measured, the hydroxyl value of Mannich polyethers made from the present embodiment is 622.2mgKOH/g.
Embodiment 4
According to the operation of embodiment 3,239.6g expoxy propane is passed through.
After measured, the hydroxyl value of Mannich polyethers made from the present embodiment is 501.3mgKOH/g.
Embodiment 5
According to the operation of embodiment 3,351.9g oxirane is passed through.
After measured, the hydroxyl value of Mannich polyethers made from the present embodiment is 443.0mgKOH/g.
Embodiment 6
The Mannich base for taking 195g to be prepared by embodiment 2 is placed in autoclave, adds 3.9gKOH, vacuumizes simultaneously nitrogen
Gas is replaced 3 times, opens and epoxy butane is gradually slowly introducing after stirring is then warming up to 80 DEG C, control material temperature is at 85 DEG C or so, always
420.7g epoxy butanes are about passed through altogether, then in 85 DEG C of insulated and stirred 1h, degassing 0.5h is finally vacuumized at 90 DEG C, is put while hot
Material, obtains product Mannich polyethers crude product, and crude product, which is evaporated under reduced pressure, to be removed small molecule and add after polyethers exquisiteness agent removes potassium ion
Obtain finished product Mannich polyethers.
After measured, the hydroxyl value of Mannich polyethers made from the present embodiment is 252.3mgKOH/g.
Embodiment 7
According to the operation of embodiment 6,272.8g oxirane is passed through.
After measured, the hydroxyl value of Mannich polyethers made from the present embodiment is 332.1mgKOH/g.
Embodiment 8
By 10g Mannich polyethers (hydroxyl value 252.3mgKOH/g) as made from embodiment 6,30g PPG 2000,50g PPG
1000,0.0005g dibutyl tin laurates, 0.1g defoamers, after being stirred with high speed agitator, add 24g's
PM200, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 1.3h.After 72h, test sample is hard
Spend for Shao A48.
Embodiment 9
By 1g Mannich polyethers (hydroxyl value 332.1mgKOH/g) as made from embodiment 7,30g PPG 2000,50g PPG
1000,0.001g dibutyl tin laurates, 0.05g defoamers, after being stirred with high speed agitator, add 20g's
PM200, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 1.2h.After 72h, test sample is hard
Spend for Shao A36.
Embodiment 10
By 5g Mannich polyethers (hydroxyl value 332.1mgKOH/g) as made from embodiment 7,30g PPG 2000,50g PPG
1000,0.0005g dibutyl tin laurates, 0.1g defoamers, after being stirred with high speed agitator, add 20g's
PM200, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 1h.After 72h, test sample hardness
For Shao A47.
Embodiment 11
By 10g Mannich polyethers (hydroxyl value 332.1mgKOH/g) as made from embodiment 7,30g PPG 2000,50g PPG
1000,0.0005g dibutyl tin laurates, 0.1g defoamers, after being stirred with high speed agitator, add 28g's
PM200, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 48min.After 72h, test sample is hard
Spend for Shao A56.
Embodiment 12
By 30g Mannich polyethers (hydroxyl value 332.1mgKOH/g) as made from embodiment 7,30g PPG 2000,50g PPG
1000,0.0005g dibutyl tin laurates, 0.1g defoamers, after being stirred with high speed agitator, add 40g's
PM200, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 48min.After 72h, test sample is hard
Spend for Shao A80.
Embodiment 13
By 10g Mannich polyethers (hydroxyl value 443.0mgKOH/g) as made from embodiment 5,30g PPG 2000,50g PPG
1000,0.0005g dibutyl tin laurates, 0.1g defoamers, after being stirred with high speed agitator, add 29g's
PM200, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 39min.After 72h, test sample is hard
Spend for Shao A60.
Embodiment 14
By 5g Mannich polyethers (hydroxyl value 501.3mgKOH/g) as made from embodiment 4,30g PPG 2000,50g PPG
1000,0.0005g dibutyl tin laurates, 0.1g defoamers, after being stirred with high speed agitator, add 24g toluene-
2,4- diisocyanate, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 36min.After 72h,
Test sample hardness is Shao A63.
Embodiment 15
By 10g Mannich polyethers (hydroxyl value 501.3mgKOH/g) as made from embodiment 4,30g PPG 2000,50g PPG
1000,0.0005g dibutyl tin laurates, 0.1g defoamers, after being stirred with high speed agitator, add 30g's
PM200, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 29min.After 72h, test sample is hard
Spend for Shao A65.
Embodiment 16
By 30g Mannich polyethers (hydroxyl value 501.3mgKOH/g) as made from embodiment 4,30g PPG 2000,50g PPG
1000,0.0005g dibutyl tin laurates, 0.1g defoamers, after being stirred with high speed agitator, add 30g's
PM200, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 29min.After 72h, test sample is hard
Spend for Shao A90.
Embodiment 17
By 25g Mannich polyethers (hydroxyl value 622.2mgKOH/g) as made from embodiment 3,30g PPG 2000,50g PPG
1000,0.0008g dibutyl tin laurates, 0.2g defoamers, after being stirred with high speed agitator, add 53g 4,4 '-
Dibenzyl diisocyanate, after stirring, deaeration, put and solidify at normal temperatures in a mold, gel time 23min.72h
Afterwards, test sample hardness is Shao A92.
Embodiment 18
By 30g Mannich polyethers (hydroxyl value 501.3mgKOH/g) as made from embodiment 4, the fourth of 0.0005g tin dilaurates two
Ji Xi, after being stirred with high speed agitator, 30g PM200 is added, after stirring, deaeration, put in a mold at normal temperatures
Solidification, gel time 31min.After 72h, test sample hardness is Shao A85.
Embodiment 19
By 10g Mannich polyethers (hydroxyl value 501.3mgKOH/g) as made from embodiment 4, the fourth of 0.0005g tin dilaurates two
Ji Xi, after being stirred with high speed agitator, 30g PM200 is added, after stirring, deaeration, put in a mold at normal temperatures
Solidification, gel time 32min.After 72h, test sample hardness is Shao A63.
Comparative example 1
30g polyethers 330N, 30g PPG 2000,50g PPG 1000,0.005g dibutyl tin laurates, 0.1g are disappeared
Infusion, after being stirred with high speed agitator, 40g PM200 is added, after stirring, deaeration, put in a mold at normal temperatures
Solidification, gel time 57min.After 72h, test sample hardness is Shao A44.
Comparative example 2
25g polyethers 330N, 30g PPG 2000,50g PPG 1000,0.008g dibutyl tin laurates, 0.2g are disappeared
Infusion, after being stirred with high speed agitator, 53g PM200 is added, after stirring, deaeration, put in a mold at normal temperatures
Solidification, gel time 49min.After 72h, test sample hardness is Shao A35.
Found, the introducing of Mannich polyethers, effectively dropped by embodiment 8-19 and comparative example 1-2 analysis of experimental data
The low dosage of catalyst, while the hardness of sample is improved, and the hydroxyl value of Mannich polyethers is higher, the reactivity of system is just
Higher, in the case where adding isodose Mannich polyethers, the product of the higher Mannich polyethers containing hydroxyl value its hardness is also therewith
Improve.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (16)
1. the application of Mannich polyethers in the elastomer.
2. the application of Mannich polyethers according to claim 1 in the elastomer, it is characterised in that the Mannich polyethers
For phenylol Mannich polyethers.
3. the application of Mannich polyethers according to claim 1 or 2 in the elastomer, it is characterised in that the Mannich
Polyethers is obtained by Mannich base and the aggregated reaction of epoxide, and the Mannich base has following structure：
One or more of the epoxides in oxirane, expoxy propane, epoxy butane or epoxychloropropane.
4. the application of Mannich polyethers in the elastomer according to claim any one of 1-3, it is characterised in that described graceful
The hydroxyl value that Buddhist nun wishes polyethers is 200~700mgKOH/g.
5. the application of Mannich polyethers in the elastomer according to claim any one of 1-4, it is characterised in that the bullet
Property body is polyurethane elastomer；The cell diameter of the elastomer is 0~0.5mm.
6. a kind of elastomer, it is characterised in that its raw material composition includes Mannich polyethers, isocyanates.
7. elastomer according to claim 6, it is characterised in that in parts by weight, its raw material composition includes：
1~30 part of Mannich polyethers；
20~53 parts of isocyanates；
0.0005~0.001 part of catalyst.
8. the elastomer according to claim 6 or 7, it is characterised in that the Mannich polyethers is that phenylol Mannich gathers
Ether.
9. according to the elastomer described in claim any one of 6-8, it is characterised in that the Mannich polyethers is by Mannich base
Obtained with the aggregated reaction of epoxide, the Mannich base has following structure：
One or more of the epoxides in oxirane, expoxy propane, epoxy butane or epoxychloropropane.
10. according to the elastomer described in claim any one of 6-9, it is characterised in that the hydroxyl value of the Mannich polyethers is 200
~700mgKOH/g.
11. according to the elastomer described in claim any one of 6-10, it is characterised in that the isocyanates is polymethylene benzene
Based isocyanate, 4,4 '-dibenzyl diisocyanate, Toluene-2,4-diisocyanate, 4- diisocyanate or hexamethylene diisocyanate；It is described
Catalyst is dibutyl tin laurate.
12. according to the elastomer described in claim any one of 6-11, it is characterised in that also including 0.05~0.2 part of defoamer.
13. according to the elastomer described in claim any one of 6-12, it is characterised in that also including polyethylene glycol, polypropylene glycol,
One or more in polytetrahydrofuran diol, tetrahydrofuran-propylene oxide copolymer glycols.
14. according to the elastomer described in claim any one of 6-13, it is characterised in that the cell diameter of the elastomer is 0
~0.5mm.
15. the method for producing elastomers described in claim any one of 6-11, it is characterised in that comprise the following steps：
The Mannich polyethers is mixed with the catalyst, and it is anti-to occur being stirred continuously the lower addition isocyanates
Should, question response terminates rear deaeration, solidification, produces the elastomer.
16. preparation method according to claim 15, it is characterised in that also include before the isocyanates is added,
By the defoamer and/or the polyethylene glycol, polypropylene glycol, polytetrahydrofuran diol or tetrahydrofuran-propylene oxide copolymerization
One or more of the step of being mixed with the Mannich polyethers with the mixture of the catalyst in glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712410.2A CN107556448A (en) | 2017-08-18 | 2017-08-18 | A kind of polyurethane elastomer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712410.2A CN107556448A (en) | 2017-08-18 | 2017-08-18 | A kind of polyurethane elastomer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107556448A true CN107556448A (en) | 2018-01-09 |
Family
ID=60976055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710712410.2A Pending CN107556448A (en) | 2017-08-18 | 2017-08-18 | A kind of polyurethane elastomer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107556448A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109456472A (en) * | 2018-09-17 | 2019-03-12 | 佳化化学科技发展（上海）有限公司 | A kind of application of Mannich base in Flame retardant polyurethane material |
| CN109467690A (en) * | 2018-09-17 | 2019-03-15 | 佳化化学科技发展（上海）有限公司 | A kind of flame-retardant polyether glycol and its preparation method and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060229371A1 (en) * | 2003-01-17 | 2006-10-12 | Lg Electronics Inc. | Composition for preparing rigid polyurethane foam and rigid polyurethane foam made therefrom |
| CN103539932A (en) * | 2013-09-11 | 2014-01-29 | 江苏雅克科技股份有限公司 | Preparation method and applications of reaction type Mannich polyether polyol with permanent flame retardant effect |
| CN107141466A (en) * | 2017-06-19 | 2017-09-08 | 于天荣 | A kind of Mannich polyethers and preparation method thereof |
-
2017
- 2017-08-18 CN CN201710712410.2A patent/CN107556448A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060229371A1 (en) * | 2003-01-17 | 2006-10-12 | Lg Electronics Inc. | Composition for preparing rigid polyurethane foam and rigid polyurethane foam made therefrom |
| CN103539932A (en) * | 2013-09-11 | 2014-01-29 | 江苏雅克科技股份有限公司 | Preparation method and applications of reaction type Mannich polyether polyol with permanent flame retardant effect |
| CN107141466A (en) * | 2017-06-19 | 2017-09-08 | 于天荣 | A kind of Mannich polyethers and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 山西省化工研究所: "《聚氨酯弹性体手册》", 31 January 2001 * |
| 徐娜 等: ""曼尼希聚醚多元醇的合成及其应用"", 《热固性树脂》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109456472A (en) * | 2018-09-17 | 2019-03-12 | 佳化化学科技发展（上海）有限公司 | A kind of application of Mannich base in Flame retardant polyurethane material |
| CN109467690A (en) * | 2018-09-17 | 2019-03-15 | 佳化化学科技发展（上海）有限公司 | A kind of flame-retardant polyether glycol and its preparation method and application |
| US11401375B2 (en) | 2018-09-17 | 2022-08-02 | Jiahua Science & Technology Development (Shanghai) Ltd. | Flame-retardant polyether polyol as well as preparation method and application thereof |
| US11440989B2 (en) | 2018-09-17 | 2022-09-13 | Jiahua Science & Technology Development (Shanghai) Ltd. | Application of Mannich base in flame-retardant polyurethane material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | “Barking” up the right tree: biorefinery from waste stream to cyclic carbonate with immobilization of CO 2 for non-isocyanate polyurethanes | |
| CN101974144B (en) | Method for preparing plant oil-based polyol for flexible polyurethane foam | |
| CN107879868B (en) | Azide solid propellant and preparation process thereof | |
| TWI460195B (en) | Composition for polyurethane foam, polyol,polyurethane foam obtained from the composition and its manufacturing method, and use of the foam | |
| CN102181050B (en) | Azido polyether polyol and synthesis method thereof | |
| CN104987488B (en) | Polyurethane elastomer that a kind of soft high intensity low pressure becomes and preparation method thereof | |
| CN104628982B (en) | A kind of preparation method of alkali lignin base water polyurethane | |
| CN100460437C (en) | Synthesis method of high-performance multipurpose urethane elastomer | |
| US11401375B2 (en) | Flame-retardant polyether polyol as well as preparation method and application thereof | |
| EP1173498B1 (en) | Long-chain polyether polyols with a high proportion of primary oh groups | |
| US20220056209A1 (en) | Method for preparing reactive sealant resin | |
| JP2016513093A (en) | Synthesis of polyurethane polymers by copper azide-alkyne click chemistry for coatings, adhesives, sealants and elastomers | |
| CN101165094A (en) | Urethane micro-pore elastomer composite material adapated for insole and preparation method thereof | |
| CN101845755A (en) | Self-emulsifying polyurethanes epoxy sizing agent for carbon fibers and preparation method thereof | |
| WO2021103376A1 (en) | Non-ionic waterborne polyurethane, preparation method therefor and application thereof | |
| CN107556448A (en) | A kind of polyurethane elastomer and preparation method thereof | |
| CN103665311B (en) | A kind of dibasic alcohol preparation method of modified polyurethane/unsaturated polyester resin | |
| CN109456457A (en) | It is used to prepare the sponge material and preparation method thereof of color inhibition cotton pads | |
| CN103467690A (en) | Wet polyurethane resin with high tear strength and hydrolysis resistance for impregnation and preparation method of wet polyurethane resin | |
| Jang et al. | Facile room-temperature preparation of flexible polyurethane foams from carbon dioxide based poly (ether carbonate) polyols with a reduced generation of acetaldehyde | |
| CN104961877B (en) | A kind of one-step synthesis of polyurethane modulus graded material | |
| CN111217977A (en) | Tannin extract-based polyurethane rigid foam and preparation method and application thereof | |
| CN102432861A (en) | Branching polyether macromonomer and preparation method thereof | |
| CN114276517A (en) | Preparation method of epoxy-terminated polybutadiene series liquid rubber | |
| CN105669933B (en) | Low frequency vibration damping method for preparing polyurethane elastic body, composite polyurethane auxiliary agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180109 |
|
| RJ01 | Rejection of invention patent application after publication |