CN110240690A - Graphene modified polyurethane foam and preparation method thereof - Google Patents
Graphene modified polyurethane foam and preparation method thereof Download PDFInfo
- Publication number
- CN110240690A CN110240690A CN201910433510.0A CN201910433510A CN110240690A CN 110240690 A CN110240690 A CN 110240690A CN 201910433510 A CN201910433510 A CN 201910433510A CN 110240690 A CN110240690 A CN 110240690A
- Authority
- CN
- China
- Prior art keywords
- graphene
- polyurethane foam
- preparation
- isocyanate
- modified polyurethane
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Abstract
The present invention relates to the technical fields of graphene more particularly to a kind of graphene modified polyurethane foam and preparation method thereof.Graphene is the functionalization graphene with isocyanate group, and isocyanate functionalized graphene is prepared by graphene oxide is modified；Graphene modified polyurethane foam is under certain conditions, as made of isocyanates, isocyanate-modified graphene, polyether polyol, chain extender, foaming agent, catalyst, organic foam stabilizer reaction.It in order to improve the interaction of graphene and polyurethane molecular chain, is stable in the presence of graphene in polyurethane foam, graphene oxide has been carried out isocyanate-modified, introduce isocyanate groups on its surface.Isocyanate groups can be reacted with polyether polyol, achieve the purpose that graphene polymeric modification polyurethane foam.Graphene modified polyurethane foam prepared by the present invention has good mechanical property, is provided simultaneously with the functionality such as antibacterial bacteriostatic, far infrared.
Description
Technical field
The present invention relates to a kind of polyurethane foam more particularly to a kind of graphene modified polyurethane foam and its preparation sides
Method.
Background technique
Flexible polyurethane foam is a kind of maximum polyurethane products of dosage, low with its density, elastic recovery is good, saturating
The excellent performance such as gas, heat preservation can be widely applied to the packaging materials such as furniture mat material, fragile article and precision instrument, heat-insulated guarantor
Adiabator, vehicle seat cushion material etc..And the addition of some functional materials, it can make polyurethane foam that there is far infrared, resist
The antibacterial equal functionality of bacterium, but be usually to be added in a manner of physics addition, functional stabilization is poor.
Graphene is a kind of novel two-dimension nano materials, there is the title of " industrial monosodium glutamate ".Graphene has many excellent
Performance, such as excellent optical property, electrical property, mechanics and thermal property, while can also assign material far infrared, antibacterial suppression
The functionality such as bacterium.But graphene due to simultaneously there is the carbon-to-carbon σ key in face and the pi-electron outside face, so have it is very high
Structural stability and thermally and chemically stability, and due to the characteristic of itself, easily reunite, in the material difficulties in dispersion.If right
Graphene carries out the modification of appropriate functional group, will have chemical activity abundant, such as graphene oxide and functionalization graphene, leads to
The selection to graphene functional group is crossed, the controllability of graphene-structured may be implemented, and realizes graphene in the material uniform
Dispersion.
Currently, graphene modified polyurethane foam mostly uses graphene and the methods of polyether polyol is simply mixed.Specially
Sharp CN201710142113.9 discloses modified graphene and preparation method thereof and polyurethane foamed material and preparation method thereof
And application, wherein modified graphene is the group provided by amine terminated polyether, the modified graphene of formation can preferably with it is poly-
Urethane foamed material compounding, obtains the polyurethane foamed material of graphene fine dispersion.CN201510283153.6 discloses one
Kind graphene chemical modification hard polyurethane foams, the polymer polyatomic alcohol which uses includes and graphene is chemical
The polyether polyol of key link, the hard polyurethane foams have excellent flame retardant property.CN201510708956.1 discloses one
Kind of the composite polyurethane foam containing graphene, preparation method and purposes, be by selecting specific carbon nano-structured compound,
Realizing, only it need to be simply mixed with polyether polyol, then can be realized with polyisocyanic acid polyisocyanate polyaddition compound to polyurethane
Purpose.
So far, the report for preparing polyurethane foam with this by using graphene grafting isocyanates is had not seen.
Summary of the invention
Present invention seek to address that drawbacks described above, a kind of graphene modified polyurethane foam and preparation method thereof is provided.
In order to overcome defect present in background technique, the technical solution adopted by the present invention to solve the technical problems is:
A kind of graphene modified polyurethane foam, graphene are the functionalization graphene with isocyanate group, isocyanate functionalized stone
Black alkene is prepared by graphene oxide is modified；
The graphene modified polyurethane foam be under certain conditions, by isocyanates, isocyanate-modified graphene,
Made of polyether polyol, chain extender, foaming agent, catalyst, organic foam stabilizer reaction；
The quality of the graphene accounts for the 0.05%-0.3% of isocyanate.
The specific steps of the preparation method of graphene modified polyurethane foam, the preparation method include:
The first step, the preparation of isocyanate functionalized graphene
In the solvent that graphene powder is added to, dispersed；
Then TDI is added, is reacted at being 80-100 DEG C in temperature, reaction time 4-8h；
It is sufficiently washed using cleaning solvent after reaction, is dried in vacuo, obtains the isocyanate functionalized graphene of grey；
Second step, the preparation of graphene modified polyurethane foam
The isocyanate functionalized graphene dispersion that the first step is obtained is in TDI；
Then fast with polyether-tribasic alcohol, organotin catalysts, tertiary amine catalyst, organic foam stabilizer, water, blowing promotor etc.
Speed stirring；
Mold is poured into, polyurethane foamed blocks bubble is obtained.
It according to another embodiment of the invention, further comprise solvent in the first step is dimethylbenzene, DMF, NMP
Or DMAc.
It according to another embodiment of the invention, further comprise dispersing mode in the first step is ultrasonic disperse,
Ultrasonic power >=100KW, jitter time 0.5-3h.
It according to another embodiment of the invention, further comprise cleaning solvent in the first step is toluene, acetone.
According to another embodiment of the invention, further comprise isocyanate functionalized graphene in the second step
Quality Mgmt Dept with TDI is 0.1-0.3:40-80.
It according to another embodiment of the invention, further comprise that the dispersing mode in the second step divides for ultrasonic shear
It dissipates, jitter time 0.5-2h.
The beneficial effects of the present invention are: keeping graphene steady to improve the interaction of graphene and polyurethane molecular chain
Surely it is present in polyurethane foam, graphene oxide has been carried out isocyanate-modified, introduces isocyanate group on its surface
Group.Isocyanate groups can be reacted with polyether polyol, achieve the purpose that graphene polymeric modification polyurethane foam.This
The graphene modified polyurethane foam of invention preparation has good mechanical property, is provided simultaneously with the function such as antibacterial bacteriostatic, far infrared
It can property.
Specific embodiment
It can be dispersed more evenly in isocyanate systems by isocyanate-modified graphene, meanwhile, on graphene
Isocyanate group can be reacted with polyether polyol, be present in polyurethane foam by way of chemical bonds, assign
Polyurethane foam new functionality, such as antibacterial bacteriostatic, far infrared.
The preparation method of this graphene modified polyurethane foam is different from blending etc. directly by the way of in-situ polymerization
The mode of addition, specific: graphene is the functionalization graphene with isocyanate group, isocyanate functionalized graphene be by
The modified preparation of graphene oxide；
Graphene modified polyurethane foam be under certain conditions, it is more by isocyanates, isocyanate-modified graphene, polyethers
Made of first alcohol, chain extender, foaming agent, catalyst, organic foam stabilizer reaction；
The quality of graphene accounts for the 0.05%-0.3% of isocyanate.
The specific steps of the preparation method of graphene modified polyurethane foam, the preparation method include:
The first step, the preparation of isocyanate functionalized graphene
In the solvent that graphene powder is added to, dispersed；
Then TDI is added, is reacted at being 80-100 DEG C in temperature, reaction time 4-8h；
It is sufficiently washed using cleaning solvent after reaction, is dried in vacuo, obtains the isocyanate functionalized graphene of grey；
Second step, the preparation of graphene modified polyurethane foam
The isocyanate functionalized graphene dispersion that the first step is obtained is in TDI；
Then fast with polyether-tribasic alcohol, organotin catalysts, tertiary amine catalyst, organic foam stabilizer, water, blowing promotor etc.
Speed stirring；
Mold is poured into, polyurethane foamed blocks bubble is obtained.
Preference
Solvent in the first step is dimethylbenzene, DMF, NMP or DMAc.
Preference
Dispersing mode in the first step is ultrasonic disperse, ultrasonic power >=100KW, jitter time 0.5-3h.
Preference
Cleaning solvent in the first step is toluene, acetone.
Preference
The Quality Mgmt Dept of isocyanate functionalized graphene and TDI in second step is 0.1-0.3:40-80.
Preference
Dispersing mode in second step is ultrasonic shear dispersion, jitter time 0.5-2h.
Embodiment 1
The first step, the preparation of isocyanate functionalized graphene
It weighs the graphene oxide of 1g, 50g is added and is dehydrated dimethylbenzene, after ultrasonic 0.5h, the TDI of 10g is added, is 95 DEG C in temperature
Lower reaction 6h；
After the reaction was completed, suction filtration is washed three times with dehydrated toluene；
Then dry in 80 DEG C of vacuum oven, obtain the superfines of the isocyanate functionalized graphene of grey.
Second step, the preparation of graphene modified polyurethane foam
The TDI for taking 46g, is added the isocyanate functionalized graphene of 0.1g, and ultrasound and Strong shear disperse 0.5h；
Polyether polyol 100g, organotin catalysts 0.4g, tertiary amine catalyst 0.2g are taken according to soft bubble formula, silicon foams are steady
Determine agent 1g, water 3g, blowing promotor 1g, rapidly after stirring, pour into mold, obtains polyurethane foamed blocks bubble.
Embodiment 2
The first step, the preparation of isocyanate functionalized graphene
It weighs the graphene oxide of 2g, 50g is added and is dehydrated dimethylbenzene, after ultrasonic 0.5h, the TDI of 5g is added, is reacted at 95 DEG C
6h；
After the reaction was completed, suction filtration is washed three times with dehydrated toluene；
Then dry in 80 DEG C of vacuum oven again, obtain the superfines of the isocyanate functionalized graphene of grey.
Second step, the preparation of graphene modified polyurethane foam
The TDI for taking 46g, is added the isocyanate functionalized graphene of 0.3g, and ultrasound and Strong shear disperse 0.5h；
Polyether polyol 100g, organotin catalysts 0.4g, tertiary amine catalyst 0.2g are taken according to soft bubble formula, silicon foams are steady
Determine agent 1g, water 3g, blowing promotor 3g, rapidly after stirring, pour into mold, obtains polyurethane foamed blocks bubble.
Embodiment 3
The first step, the preparation of isocyanate functionalized graphene
It weighs the graphene oxide of 2g, 50g is added and is dehydrated dimethylbenzene, after ultrasonic 0.5h, the TDI of 10g is added, is reacted at 95 DEG C
6h；
After the reaction was completed, suction filtration is washed three times with dehydrated toluene；
Then dry in 80 DEG C of vacuum oven, obtain the superfines of the isocyanate functionalized graphene of grey.
Second step, the preparation of graphene modified polyurethane foam
The TDI for taking 46g, is added the isocyanate functionalized graphene of 1g, and ultrasound and Strong shear disperse 0.5h；
Polyether polyol 100g, organotin catalysts 0.4g, tertiary amine catalyst 0.2g are taken according to soft bubble formula, silicon foams are steady
Determine agent 1g, water 3g, blowing promotor 3g, rapidly after stirring, pour into mold, obtains polyurethane foamed blocks bubble.
Relevant performance test is carried out to the resulting graphene modified polyurethane foam of each embodiment, test result is shown in Table
1。
Claims (7)
1. a kind of graphene modified polyurethane foam, it is characterised in that:
It is the functionalization graphene with isocyanate group including graphene, isocyanate functionalized graphene is by graphene oxide
Modified preparation；
Further include graphene modified polyurethane foam be under certain conditions, by isocyanates, isocyanate-modified graphene,
Made of polyether polyol, chain extender, foaming agent, catalyst, organic foam stabilizer reaction；
The quality of the graphene accounts for the 0.05%-0.3% of isocyanate.
2. the preparation method of graphene modified polyurethane foam as described in claim 1, it is characterised in that: the preparation method
Specific steps include:
The first step, the preparation of isocyanate functionalized graphene
In the solvent that graphene powder is added to, dispersed；
Then TDI is added, is reacted at being 80-100 DEG C in temperature, reaction time 4-8h；
It is sufficiently washed using cleaning solvent after reaction, is dried in vacuo, obtains the isocyanate functionalized graphene of grey；
Second step, the preparation of graphene modified polyurethane foam
The isocyanate functionalized graphene dispersion that the first step is obtained is in TDI；
Then fast with polyether-tribasic alcohol, organotin catalysts, tertiary amine catalyst, organic foam stabilizer, water, blowing promotor etc.
Speed stirring；
Mold is poured into, polyurethane foamed blocks bubble is obtained.
3. the preparation method of graphene modified polyurethane foam as claimed in claim 2, it is characterised in that: in the first step
Solvent be dimethylbenzene, DMF, NMP or DMAc.
4. the preparation method of graphene modified polyurethane foam as claimed in claim 2, it is characterised in that: in the first step
Dispersing mode be ultrasonic disperse, ultrasonic power >=100KW, jitter time 0.5-3h.
5. the preparation method of graphene modified polyurethane foam as claimed in claim 2, it is characterised in that: in the first step
Cleaning solvent be toluene, acetone.
6. the preparation method of graphene modified polyurethane foam as claimed in claim 2, it is characterised in that: in the second step
Isocyanate functionalized graphene and TDI Quality Mgmt Dept be 0.1-0.3:40-80.
7. the preparation method of graphene modified polyurethane foam as claimed in claim 2, it is characterised in that: in the second step
Dispersing mode be ultrasonic shear dispersion, jitter time 0.5-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910433510.0A CN110240690A (en) | 2019-05-23 | 2019-05-23 | Graphene modified polyurethane foam and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910433510.0A CN110240690A (en) | 2019-05-23 | 2019-05-23 | Graphene modified polyurethane foam and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110240690A true CN110240690A (en) | 2019-09-17 |
Family
ID=67884902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910433510.0A Pending CN110240690A (en) | 2019-05-23 | 2019-05-23 | Graphene modified polyurethane foam and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110240690A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057212A (en) * | 2019-12-26 | 2020-04-24 | 江苏舜天新盈轻工业有限公司 | Preparation process of graphene oxide polyurethane sealing foaming adhesive and foaming adhesive |
| CN111138627A (en) * | 2020-01-09 | 2020-05-12 | 新疆宏宇志祥工程咨询有限公司 | Graphene oxide/carbon nanotube high-strength polyurethane insulation board and preparation method thereof |
| CN111484757A (en) * | 2020-04-17 | 2020-08-04 | 连云港杜钟新奥神氨纶有限公司 | Modified graphene oxide and preparation method thereof |
| CN111662475A (en) * | 2020-06-17 | 2020-09-15 | 山东师范大学 | Intelligent early warning flame-retardant material prepared from modified high-molecular polymer, and preparation method and application thereof |
| CN112795003A (en) * | 2020-12-30 | 2021-05-14 | 山东一诺威新材料有限公司 | Graphene modified polyether polyol for latex-like polyurethane flexible foam and preparation method thereof |
| CN112812268A (en) * | 2020-12-31 | 2021-05-18 | 深圳联达技术实业有限公司 | Low-temperature-resistant memory cotton for pillow and preparation method and application thereof |
| CN112920364A (en) * | 2021-01-28 | 2021-06-08 | 江苏威久科技发展有限公司 | Polyurethane foam based on graphene modification and preparation method thereof |
| CN113142251A (en) * | 2021-04-26 | 2021-07-23 | 维尼健康（深圳）股份有限公司 | Medical foam disinfectant and preparation process thereof |
| CN114479004A (en) * | 2022-02-28 | 2022-05-13 | 安徽太平海绵制品有限公司 | Anti-corrosion sponge and preparation method thereof |
| CN116517129A (en) * | 2023-05-11 | 2023-08-01 | 唐宽 | Modified polyurethane foam heat insulation board and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844781A (en) * | 2015-05-29 | 2015-08-19 | 杨秀莲 | Graphene chemically-modified hard polyurethane foam |
| CN104892886A (en) * | 2015-06-29 | 2015-09-09 | 杨秀莲 | Hard flame-retardant polyurethane foam low in smoke release |
| US10259923B1 (en) * | 2016-03-03 | 2019-04-16 | Phillips Intellectual Properties, Llc | Electrically-conductive compositions and methods of using them with pipelines |
| CN109749406A (en) * | 2019-01-07 | 2019-05-14 | 北京慕成防火绝热特种材料有限公司 | A kind of graphene oxide foam blocking material, preparation method and application |
-
2019
- 2019-05-23 CN CN201910433510.0A patent/CN110240690A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104844781A (en) * | 2015-05-29 | 2015-08-19 | 杨秀莲 | Graphene chemically-modified hard polyurethane foam |
| CN104892886A (en) * | 2015-06-29 | 2015-09-09 | 杨秀莲 | Hard flame-retardant polyurethane foam low in smoke release |
| US10259923B1 (en) * | 2016-03-03 | 2019-04-16 | Phillips Intellectual Properties, Llc | Electrically-conductive compositions and methods of using them with pipelines |
| CN109749406A (en) * | 2019-01-07 | 2019-05-14 | 北京慕成防火绝热特种材料有限公司 | A kind of graphene oxide foam blocking material, preparation method and application |
Non-Patent Citations (4)
| Title |
|---|
| 上海市轻工业研究所，等: "《聚氨酯泡沫塑料》", 30 April 1965, 上海市科学技术编译馆出版 * |
| 冯亚青，等: "《助剂化学及工艺学》", 30 June 1997, 化学工业出版社 * |
| 柴春鹏，等: "《高分子合成材料学》", 31 January 2019, 北京理工大学出版社 * |
| 谢毓，等: "聚氨酯/异氰酸酯改性氧化石墨烯泡沫材料的制备及其性能研究", 《中国塑料》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111057212A (en) * | 2019-12-26 | 2020-04-24 | 江苏舜天新盈轻工业有限公司 | Preparation process of graphene oxide polyurethane sealing foaming adhesive and foaming adhesive |
| CN111138627A (en) * | 2020-01-09 | 2020-05-12 | 新疆宏宇志祥工程咨询有限公司 | Graphene oxide/carbon nanotube high-strength polyurethane insulation board and preparation method thereof |
| CN111138627B (en) * | 2020-01-09 | 2022-04-22 | 新疆亿元达光电科技有限公司 | Graphene oxide/carbon nanotube high-strength polyurethane insulation board and preparation method thereof |
| CN111484757B (en) * | 2020-04-17 | 2021-10-22 | 连云港杜钟新奥神氨纶有限公司 | Modified graphene oxide and preparation method thereof |
| CN111484757A (en) * | 2020-04-17 | 2020-08-04 | 连云港杜钟新奥神氨纶有限公司 | Modified graphene oxide and preparation method thereof |
| CN111662475A (en) * | 2020-06-17 | 2020-09-15 | 山东师范大学 | Intelligent early warning flame-retardant material prepared from modified high-molecular polymer, and preparation method and application thereof |
| CN112795003A (en) * | 2020-12-30 | 2021-05-14 | 山东一诺威新材料有限公司 | Graphene modified polyether polyol for latex-like polyurethane flexible foam and preparation method thereof |
| CN112795003B (en) * | 2020-12-30 | 2023-03-10 | 山东一诺威新材料有限公司 | Graphene modified polyether polyol for latex-like polyurethane flexible foam and preparation method thereof |
| CN112812268A (en) * | 2020-12-31 | 2021-05-18 | 深圳联达技术实业有限公司 | Low-temperature-resistant memory cotton for pillow and preparation method and application thereof |
| CN112920364A (en) * | 2021-01-28 | 2021-06-08 | 江苏威久科技发展有限公司 | Polyurethane foam based on graphene modification and preparation method thereof |
| CN113142251A (en) * | 2021-04-26 | 2021-07-23 | 维尼健康（深圳）股份有限公司 | Medical foam disinfectant and preparation process thereof |
| CN114479004A (en) * | 2022-02-28 | 2022-05-13 | 安徽太平海绵制品有限公司 | Anti-corrosion sponge and preparation method thereof |
| CN116517129A (en) * | 2023-05-11 | 2023-08-01 | 唐宽 | Modified polyurethane foam heat insulation board and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110240690A (en) | Graphene modified polyurethane foam and preparation method thereof | |
| US4670477A (en) | Process for preparing in situ reticulated polyurethane foam | |
| CN101205288B (en) | Polyurethane foam compositions | |
| CN108137775A (en) | For noise and the polyurethane foam of absorption of vibrations | |
| CN106189192A (en) | A kind of Kafra fiber polyurethane composite foam material and preparation method thereof | |
| US8815967B2 (en) | Porous polyurea material and methods for preparing the same | |
| CN105131580A (en) | Halogen-free flame retardant polyurethane flexible foam and preparation method thereof | |
| CN101812232A (en) | Polyimide foam and preparation method thereof | |
| EP0618253B1 (en) | Polyurethane foam of low thermal conductivity and method of preparation | |
| CN112920364A (en) | Polyurethane foam based on graphene modification and preparation method thereof | |
| CN113105664A (en) | Polyurethane foam stabilizer | |
| CA1299794C (en) | High-density composite materials essentially based on polyisocyanurate | |
| CN1138057A (en) | Process for preparing open-cellular polyurethane modified polyisocyanurate foam | |
| KR100579842B1 (en) | Nano composite rigid foam composition for ice pack comprising silane | |
| CN113896860B (en) | Full-water polyurethane rigid foam material, preparation method and application | |
| CN113292697A (en) | Ultra-high density polyurethane soft foam and preparation method thereof | |
| CN112625297B (en) | Method for preparing WPU synthetic leather foaming layer based on Pickering foam template method | |
| US20090004457A1 (en) | Polymer foam composite containing hollow particles and process for preparing the same | |
| US3007883A (en) | Cellular polyurethanes resembling natural sponge and method of preparing same | |
| EP3377566B1 (en) | Formulation of polymeric mixtures for the production of cross-linked expanded pvc foams and process for producing said foams | |
| CN110964309A (en) | High-hardness sponge and processing technology thereof | |
| CN106519702A (en) | Composition and method for manufacturing pored silicone rubber sponge | |
| US3355398A (en) | Cellular polyurethanes prepared utilizing sodium borohydride as a blowing agent | |
| CN1058030C (en) | Integral-skin polyurethane foam, preparation process and use of same | |
| CN103342796A (en) | Production method of polyurethane hard foamed product |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190917 |