Abstract
In the present study cellulose fatty acid esters were
synthesized and characterized from chemical pulps, with
different hemicellulose contents. We proceeded then to
prepare and characterize paperboard coatings based on
these materials. The cellulose esters obtained were
characterized by FTIR and 31P NMR. The degree of
substitution was found to increase from 0.8 to 2.8, with
increasing fatty acid chloride stoichometry. The coatings
were clearly hydrophobic and the barrier properties
importantly were found not to vary significantly at all
between the cellulose substituents and the degrees of
substitution. Water contact angle values were over 90°.
Hydrophobicity was also confirmed by low water absorption
into the coated boards; the values being similar to those
of commercial ones. The best water vapor barrier
properties, i.e. the lowest water vapor transmission
rates (WVTR) were obtained for the coatings prepared from
the palmitoyl esters of the low hemicellulose content
pulp cellulose. This compound was comparable to those of
commercial PE- and PLA-coated boards. The cellulose ester
coated boards were also good oil and grease barriers.
| Original language | English |
|---|---|
| Title of host publication | Proceedings |
| Subtitle of host publication | 16th International Symposium on Wood, Fiber and Pulping Chemistry, 16th ISWFPC |
| Pages | 1394-1398 |
| Volume | 2 |
| Publication status | Published - 2011 |
| MoE publication type | A4 Article in a conference publication |
| Event | 16th International Symposium on Wood, Fiber and Pulping Chemistry, ISWFPC 2011 - Tianjin, China Duration: 8 Jun 2011 → 10 Jun 2011 |
Conference
| Conference | 16th International Symposium on Wood, Fiber and Pulping Chemistry, ISWFPC 2011 |
|---|---|
| Country/Territory | China |
| City | Tianjin |
| Period | 8/06/11 → 10/06/11 |
Keywords
- cellulose fatty acid ester
- birch kraft pulp
- degree of substitution
- paperboard coating
- barrier