CN101402795A - Novel fire resistant polyimide foam and method of producing the same - Google Patents
Novel fire resistant polyimide foam and method of producing the same Download PDFInfo
- Publication number
- CN101402795A CN101402795A CNA2008102268635A CN200810226863A CN101402795A CN 101402795 A CN101402795 A CN 101402795A CN A2008102268635 A CNA2008102268635 A CN A2008102268635A CN 200810226863 A CN200810226863 A CN 200810226863A CN 101402795 A CN101402795 A CN 101402795A
- Authority
- CN
- China
- Prior art keywords
- polyimide foam
- bpda
- dianhydride
- fire resistant
- phenylacetylene
- 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.)
- Granted
Links
- 239000006260 foam Substances 0.000 title claims abstract description 86
- 239000004642 Polyimide Substances 0.000 title claims abstract description 84
- 229920001721 polyimide Polymers 0.000 title claims abstract description 83
- 230000009970 fire resistant effect Effects 0.000 title claims description 25
- 238000000034 method Methods 0.000 title description 15
- 239000002243 precursor Substances 0.000 claims abstract description 59
- 239000000843 powder Substances 0.000 claims abstract description 26
- 150000005690 diesters Chemical class 0.000 claims abstract description 20
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 16
- UEXCJVNBTNXOEH-UHFFFAOYSA-N Ethynylbenzene Chemical compound C#CC1=CC=CC=C1 UEXCJVNBTNXOEH-UHFFFAOYSA-N 0.000 claims abstract description 13
- 125000003118 aryl group Chemical group 0.000 claims abstract description 10
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 7
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 150000004984 aromatic diamines Chemical class 0.000 claims abstract description 5
- 125000006158 tetracarboxylic acid group Chemical group 0.000 claims abstract description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 204
- 239000002253 acid Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 18
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 17
- 238000010992 reflux Methods 0.000 claims description 15
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 claims description 14
- 239000003153 chemical reaction reagent Substances 0.000 claims description 14
- 238000005187 foaming Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 6
- 239000012965 benzophenone Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 claims description 4
- 230000001476 alcoholic effect Effects 0.000 claims description 4
- 230000032050 esterification Effects 0.000 claims description 4
- 238000005886 esterification reaction Methods 0.000 claims description 4
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- QQGYZOYWNCKGEK-UHFFFAOYSA-N 5-[(1,3-dioxo-2-benzofuran-5-yl)oxy]-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(OC=2C=C3C(=O)OC(C3=CC=2)=O)=C1 QQGYZOYWNCKGEK-UHFFFAOYSA-N 0.000 claims description 3
- 229930185605 Bisphenol Natural products 0.000 claims description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 3
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 3
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 claims description 3
- 150000003949 imides Chemical class 0.000 claims description 3
- YKNMIGJJXKBHJE-UHFFFAOYSA-N (3-aminophenyl)-(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=CC(N)=C1 YKNMIGJJXKBHJE-UHFFFAOYSA-N 0.000 claims description 2
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 2
- ZLSMCQSGRWNEGX-UHFFFAOYSA-N bis(4-aminophenyl)methanone Chemical compound C1=CC(N)=CC=C1C(=O)C1=CC=C(N)C=C1 ZLSMCQSGRWNEGX-UHFFFAOYSA-N 0.000 claims description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 2
- 150000003222 pyridines Chemical class 0.000 claims description 2
- 150000003384 small molecules Chemical class 0.000 claims description 2
- GIWQSPITLQVMSG-UHFFFAOYSA-N 1,2-dimethylimidazole Chemical group CC1=NC=CN1C GIWQSPITLQVMSG-UHFFFAOYSA-N 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 2
- FYYYKXFEKMGYLZ-UHFFFAOYSA-N 4-(1,3-dioxo-2-benzofuran-5-yl)-2-benzofuran-1,3-dione Chemical compound C=1C=C2C(=O)OC(=O)C2=CC=1C1=CC=CC2=C1C(=O)OC2=O FYYYKXFEKMGYLZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000002981 blocking agent Substances 0.000 abstract 1
- 230000008859 change Effects 0.000 abstract 1
- 230000009467 reduction Effects 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 14
- 230000000694 effects Effects 0.000 description 14
- 238000000227 grinding Methods 0.000 description 14
- 239000007787 solid Substances 0.000 description 14
- 238000013019 agitation Methods 0.000 description 13
- 239000004305 biphenyl Substances 0.000 description 13
- -1 polyethylene Polymers 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000006261 foam material Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 description 2
- ITQTTZVARXURQS-UHFFFAOYSA-N 3-methylpyridine Chemical compound CC1=CC=CN=C1 ITQTTZVARXURQS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- JYYNAJVZFGKDEQ-UHFFFAOYSA-N 2,4-Dimethylpyridine Chemical compound CC1=CC=NC(C)=C1 JYYNAJVZFGKDEQ-UHFFFAOYSA-N 0.000 description 1
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 1
- GRFNBEZIAWKNCO-UHFFFAOYSA-N 3-pyridinol Chemical compound OC1=CC=CN=C1 GRFNBEZIAWKNCO-UHFFFAOYSA-N 0.000 description 1
- GCNTZFIIOFTKIY-UHFFFAOYSA-N 4-hydroxypyridine Chemical compound OC1=CC=NC=C1 GCNTZFIIOFTKIY-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920007790 polymethacrylimide foam Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical group CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
Description
Example | Foam formation/mol ratio | The imidization temperature/℃ | Density/kgm -3 | Tg/℃ |
1 | a-BPDA/p-PDA/4-PEA=10∶9∶2 | 360 | 30 | 418 |
2 | a-BPDA/p-PDA/4-PEA=10∶9∶2 | 360 | 60 | 418 |
3 | a-BPDA/p-PDA/4-PEA=10∶9∶2 | 360 | 120 | 418 |
4 | a-BPDA/p-PDA/4-PEA=10∶9∶2 | 390 | 60 | 430 |
5 | a-BPDA/p-PDA/4-PEA=10∶9∶2 | 420 | 60 | >450 |
6 | a-BPDA/m-PDA/4-PEA=10∶9∶2 | 420 | 60 | 427 |
7 | a-BPDA/4,4’-ODA/4-PEA=10∶9∶2 | 420 | 60 | 365 |
8 | a-BPDA/p-PDA/4-PEA=4∶3∶2 | 420 | 60 | >450 |
9 | a-BPDA/p-PDA/4-PEA=10∶9∶2 | 420 | 60 | >450 |
10 | a-BPDA/p-PDA/3-PEPA=10∶9∶2 | 420 | 60 | >450 |
11 | a-BPDA/p-PDA/4-PEPA=10∶9∶2 | 420 | 60 | >450 |
12 | a-BPDA/p-PDA/3-FPA=10∶9∶2 | 420 | 60 | >450 |
13 | a-BPDA/p-PDA/PEPOA=10∶9∶2 | 420 | 60 | >450 |
14 | a-BPDA/p-PDA/3A4’PEA=10∶9∶2 | 420 | 60 | >450 |
15 | a-BPDA/p-PDA/4A4’PEA=10∶9∶2 | 420 | 60 | >450 |
16 | a-BPDA/s-BTDA/ p-PDA/4-PEA=8∶2∶9∶2 | 420 | 60 | 436 |
17 | a-BPDA/p-PDA/4-PEA=10∶9∶2 | 420 | 60 | >450 |
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008102268635A CN101402795B (en) | 2008-11-19 | 2008-11-19 | Novel fire resistant polyimide foam and method of producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008102268635A CN101402795B (en) | 2008-11-19 | 2008-11-19 | Novel fire resistant polyimide foam and method of producing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101402795A true CN101402795A (en) | 2009-04-08 |
CN101402795B CN101402795B (en) | 2011-06-08 |
Family
ID=40536967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008102268635A Expired - Fee Related CN101402795B (en) | 2008-11-19 | 2008-11-19 | Novel fire resistant polyimide foam and method of producing the same |
Country Status (1)
Country | Link |
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CN (1) | CN101402795B (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102604094A (en) * | 2012-01-11 | 2012-07-25 | 复旦大学 | Crosslinking fluorine-containing polyimide and synthesis method thereof |
CN102634020A (en) * | 2011-09-19 | 2012-08-15 | 京东方科技集团股份有限公司 | Prepolymer, oriented film, preparation method for oriented film, and liquid crystal display device |
CN102850569A (en) * | 2012-09-20 | 2013-01-02 | 中国科学院长春应用化学研究所 | Preparation method of polyimide foam |
CN103012793A (en) * | 2012-12-28 | 2013-04-03 | 青岛海洋新材料科技有限公司 | Novel mould-pressing polyimide foamed plastic and preparation method thereof |
CN104072770A (en) * | 2014-06-30 | 2014-10-01 | 自贡中天胜新材料科技有限公司 | Foamed fluorine-containing polyimide and preparation method of foam thereof |
CN104231269A (en) * | 2014-10-14 | 2014-12-24 | 中国科学院长春应用化学研究所 | Polyimide and preparation method thereof and polyimide molding powder |
US20170150651A1 (en) * | 2015-11-19 | 2017-05-25 | Boyd Corporation | Densified foam for thermal insulation in electronic devices |
CN108017786A (en) * | 2017-12-24 | 2018-05-11 | 桂林理工大学 | The method that Kapton is prepared using benzophenone tetracarboxylic dianhydride |
CN108395535A (en) * | 2018-04-03 | 2018-08-14 | 上海市合成树脂研究所有限公司 | A kind of imido preparation method of hot polymerization for laminated product |
CN109535714A (en) * | 2018-11-20 | 2019-03-29 | 北京航空航天大学 | A kind of polyimides composite foam material resistant to high temperature and preparation method thereof |
CN110028668A (en) * | 2019-04-25 | 2019-07-19 | 航天材料及工艺研究所 | A kind of preparation method of hard polyimide foaming material |
CN112175335A (en) * | 2020-10-29 | 2021-01-05 | 吉林化工学院 | Ablation-resistant aerospace material and preparation method thereof |
CN115651339A (en) * | 2022-11-05 | 2023-01-31 | 浙江中科恒泰新材料科技有限公司 | PMI foaming method by using dihydric alcohol |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3687496B2 (en) * | 2000-06-28 | 2005-08-24 | 宇部興産株式会社 | Foamed polyimide and process for producing the same |
-
2008
- 2008-11-19 CN CN2008102268635A patent/CN101402795B/en not_active Expired - Fee Related
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102634020A (en) * | 2011-09-19 | 2012-08-15 | 京东方科技集团股份有限公司 | Prepolymer, oriented film, preparation method for oriented film, and liquid crystal display device |
CN102634020B (en) * | 2011-09-19 | 2013-09-11 | 京东方科技集团股份有限公司 | Prepolymer, oriented film, preparation method for oriented film, and liquid crystal display device |
CN102604094A (en) * | 2012-01-11 | 2012-07-25 | 复旦大学 | Crosslinking fluorine-containing polyimide and synthesis method thereof |
CN102850569A (en) * | 2012-09-20 | 2013-01-02 | 中国科学院长春应用化学研究所 | Preparation method of polyimide foam |
CN102850569B (en) * | 2012-09-20 | 2014-05-21 | 中国科学院长春应用化学研究所 | Preparation method of polyimide foam |
CN103012793A (en) * | 2012-12-28 | 2013-04-03 | 青岛海洋新材料科技有限公司 | Novel mould-pressing polyimide foamed plastic and preparation method thereof |
CN104072770B (en) * | 2014-06-30 | 2016-04-20 | 自贡中天胜新材料科技有限公司 | A kind of foaming fluorinated polyimide and foam preparation processes thereof |
CN104072770A (en) * | 2014-06-30 | 2014-10-01 | 自贡中天胜新材料科技有限公司 | Foamed fluorine-containing polyimide and preparation method of foam thereof |
CN104231269B (en) * | 2014-10-14 | 2018-04-10 | 中国科学院长春应用化学研究所 | A kind of polyimides and preparation method thereof and polyimide molding powder |
CN104231269A (en) * | 2014-10-14 | 2014-12-24 | 中国科学院长春应用化学研究所 | Polyimide and preparation method thereof and polyimide molding powder |
US20170150651A1 (en) * | 2015-11-19 | 2017-05-25 | Boyd Corporation | Densified foam for thermal insulation in electronic devices |
US10448541B2 (en) * | 2015-11-19 | 2019-10-15 | Boyd Corporation | Densified foam for thermal insulation in electronic devices |
CN108017786A (en) * | 2017-12-24 | 2018-05-11 | 桂林理工大学 | The method that Kapton is prepared using benzophenone tetracarboxylic dianhydride |
CN108395535A (en) * | 2018-04-03 | 2018-08-14 | 上海市合成树脂研究所有限公司 | A kind of imido preparation method of hot polymerization for laminated product |
CN109535714A (en) * | 2018-11-20 | 2019-03-29 | 北京航空航天大学 | A kind of polyimides composite foam material resistant to high temperature and preparation method thereof |
CN110028668A (en) * | 2019-04-25 | 2019-07-19 | 航天材料及工艺研究所 | A kind of preparation method of hard polyimide foaming material |
CN110028668B (en) * | 2019-04-25 | 2021-08-10 | 航天材料及工艺研究所 | Preparation method of hard polyimide foam material |
CN112175335A (en) * | 2020-10-29 | 2021-01-05 | 吉林化工学院 | Ablation-resistant aerospace material and preparation method thereof |
CN112175335B (en) * | 2020-10-29 | 2021-04-20 | 吉林化工学院 | Ablation-resistant aerospace material and preparation method thereof |
CN115651339A (en) * | 2022-11-05 | 2023-01-31 | 浙江中科恒泰新材料科技有限公司 | PMI foaming method by using dihydric alcohol |
Also Published As
Publication number | Publication date |
---|---|
CN101402795B (en) | 2011-06-08 |
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