Abstract
The miscibility between two gels with largely different gelation behaviors is an interesting topic both scientifically and practically. This paper reports a novel bi-phasic system based on two natural polymers, hydroxypropyl methylcellulose (HPMC) which has a thermal gelation behavior, and hydroxypropyl starch (HPS) which has a cooling gelation property. While both biopolymers have the same glucose unit grafted with propylene oxide, and are compatible to a certain degree, they were observed immiscible because of their different gelation behaviors. The immiscibility of these two compatible polymers could result in special structures leading to different blend film properties. Regarding this, the morphology, thermal transition, mechanical properties and oxygen barrier property could be well tailored by the ratio of two biopolymers and the environmental conditions. The knowledge obtained from this work could be useful for understanding other similar systems with desirable structure and properties.
| Original language | English |
|---|---|
| Pages (from-to) | 46-52 |
| Number of pages | 7 |
| Journal | Composites Part B: Engineering |
| Volume | 101 |
| DOIs | |
| Publication status | Published - 15 Sept 2016 |
Bibliographical note
Publisher Copyright:© 2016 Elsevier Ltd
Funding
The authors from the South China University of Technology, China, would like to acknowledge the research funds from NSFC ( 31071503 , and 21174043 ), RFDPHE ( 20110172110027 ) and FRFCU ( 2012ZZ0085 , and 2012ZB0006 ).
| Funders | Funder number |
|---|---|
| FRFCU | 2012ZZ0085, 2012ZB0006 |
| RFDPHE | 20110172110027 |
| National Natural Science Foundation of China | 21174043, 31071503 |
| South China University of Technology |
Keywords
- Casting
- Hybrid
- Mechanical properties
- Physical properties
ASJC Scopus subject areas
- Ceramics and Composites
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering