|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM278708781 |
| 003 |
DE-627 |
| 005 |
20231225021241.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2018 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1002/adma.201703992
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n0929.xml
|
| 035 |
|
|
|a (DE-627)NLM278708781
|
| 035 |
|
|
|a (NLM)29205534
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Wang, Lijun
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Preparation of Microcellular Epoxy Foams through a Limited-Foaming Process
|b A Contradiction with the Time-Temperature-Transformation Cure Diagram
|
| 264 |
|
1 |
|c 2018
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 01.08.2018
|
| 500 |
|
|
|a Date Revised 01.10.2020
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
|
| 520 |
|
|
|a 3D cross-linking networks are generated through chemical reactions between thermosetting epoxy resin and hardener during curing. The curing degree of epoxy material can be increased by increasing curing temperature and/or time. The epoxy material must then be fully cured through a postcuring process to optimize its material characteristics. Here, a limited-foaming method is introduced for the preparation of microcellular epoxy foams (Lim-foams) with improved cell morphology, high thermal expansion coefficient, and good compressive properties. Lim-foams exhibit a lower glass transition temperature (Tg ) and curing degree than epoxy foams fabricated through free-foaming process (Fre-foams). Surprisingly, however, the Tg of Lim-foams is unaffected by postcuring temperature and time. This phenomenon, which is related to high gas pressure in the bubbles, contradicts that indicated by the time-temperature-transformation cure diagram. High bubble pressure promotes the movement of molecular chains under heating at low temperature and simultaneously suppresses the etherification cross-linking reaction during post-curing
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a chemical structures
|
| 650 |
|
4 |
|a limited foaming
|
| 650 |
|
4 |
|a microcellular epoxy foams
|
| 650 |
|
4 |
|a physical properties
|
| 700 |
1 |
|
|a Zhang, Chun
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Gong, Wei
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Ji, Yubi
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Qin, Shuhao
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a He, Li
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 3 vom: 26. Jan.
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
|
| 773 |
1 |
8 |
|g volume:30
|g year:2018
|g number:3
|g day:26
|g month:01
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1002/adma.201703992
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 30
|j 2018
|e 3
|b 26
|c 01
|