WFRF:(Gong P.)
Search: WFRF:(Gong P.) > (1998-1999) > Biodegradability of...
- 2 of 3
- Previous record
- Next record
- To hitlist
| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04021naa a2200361 4500 | |
| 001 | oai:DiVA.org:kth-166036 | |
| 003 | SwePub | |
| 008 | 150430s1999 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1660362 URI |
| 024 | 7 | a https://doi.org/10.1021/ie99008692 DOI |
| 040 | a (SwePub)kth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Zhang, L4 aut |
| 245 | 1 0 | a Biodegradability of regenerated cellulose films coated with polyurethane/natural polymers interpenetrating polymer networks |
| 264 | c 1999-09-18 | |
| 264 | 1 | b American Chemical Society (ACS),c 1999 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20150507 | |
| 520 | a Interpenetrating polymer network (IPN) coatings synthesized from castor- oil-based polyurethane (PU) with chitosan, nitrocellulose, or elaeostearin were coated on regenerated cellulose (RC) film for curing at 80-100 °C for 2-5 min, providing biodegradable, water-resistant cellulose films coded, respectively, as RCCH, RCNC, and RCEs. The coated films were buried in natural soil for decaying and inoculated with a spore suspension of fungi on the agar medium, respectively, to test biodegradability. The viscosity- average molecular weight, M(n), and the weight of the degraded films decreased sharply with the progress of degradation. The degradation half- lifes, t(1/2), of the films in soil at 30 °C were found to be 19 days for RC, 25 days for RCNC, 32 days for RCCH, and 45 days for the RCEs films. Scanning electron microscopy (SEM) showed that the extent of decay followed in the order RC > RCNC > RCCH > RCEs. SEM, infrared (IR), high-performance liquid chromatography (HPLC), and CO2 evolution results indicated that the microorganisms directly attacked the water-resistant coating layer and then penetrated into the cellulose to speedily metabolize, while accompanying with producing CO2, H2O, glucose cleaved from cellulose, and small molecules decomposed from the coatings.Interpenetrating polymer network (IPN) coatings synthesized from castor-oil-based polyurethane (PU) with chitosan, nitrocellulose, or elaeostearin were coated on regenerated cellulose (RC) film for curing at 80-100°C for 2-5 min, providing biodegradable, water-resistant cellulose films coded, respectively, as RCCH, RCNC, and RCEs. The coated films were buried in natural soil for decaying and inoculated with a spore suspension of fungi on the agar medium, respectively, to test biodegradability. The viscosity-average molecular weight, Mη, and the weight of the degraded films decreased sharply with the process of degradation. The degradation half-lifes, t1/2, of the films in soil at 30°C were found to be 19 days for RC, 25 days for RCNC, 32 days for RCCH, and 45 days for the RCEs films. Scanning electron microscopy (SEM) showed that the extent of decay followed in the order RC > RCNC > RCCH > RCEs. SEM, infrared (IR), high-performance liquid chromatography (HPLC), and CO2 evolution results indicated that the microorganisms directly attacked the water-resistant coating layer and then penetrated into the cellulose to speedily metabolize, while accompanying with producing CO2, H2O, glucose cleaved from cellulose, and small molecules decomposed from the coatings. | |
| 650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknikx Pappers-, massa- och fiberteknik0 (SwePub)205032 hsv//swe |
| 650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Paper, Pulp and Fiber Technology0 (SwePub)205032 hsv//eng |
| 700 | 1 | a Zhou, JP4 aut |
| 700 | 1 | a Huang, J4 aut |
| 700 | 1 | a Gong, P4 aut |
| 700 | 1 | a Zhou, Q4 aut |
| 700 | 1 | a Zheng, LS4 aut |
| 700 | 1 | a Du, YM4 aut |
| 773 | 0 | t Industrial & Engineering Chemistry Researchd : American Chemical Society (ACS)g 38:11, s. 4284-4289q 38:11<4284-4289x 0888-5885x 1520-5045 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-166036 |
| 856 | 4 8 | u https://doi.org/10.1021/ie9900869 |
Find in a library
- Industrial & Engineering Chemistry Research (Search for host publication in LIBRIS)
To the university's database
- 2 of 3
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Zhang, L
- Zhou, JP
- Huang, J
- Gong, P
- Zhou, Q
- Zheng, LS
- show more...
- Du, YM
- show less...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
- and Paper Pulp and F ...
- Articles in the publication
- Industrial & Eng ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
