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| Effects of Cellulose Nanofibril/Pullulanase System on the Performance of Starch Film |
| Received:March 22, 2024 |
| DOI：10.11980/j.issn.0254-508X.2024.09.001 |
| Key Words:starch pullulanase cellulose nanofibril starch film |
| Author Name | Affiliation | Postcode | | WANG Cheng | Tianjin Key Lab of Pulp and Paper, Tianjin University of Science & Technology, Tianjin, 300457
State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science & Technology, Tianjin,300457 | 300457 | | LIU Liqin | Tianjin Key Lab of Pulp and Paper, Tianjin University of Science & Technology, Tianjin, 300457
State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science & Technology, Tianjin,300457 | 300457 | | LU Bin | Zhejiang Jingxing Paper Co., Ltd., Jiaxing, Zhejiang Province, 314214 | 314214 | | CHENG Zhengbai | Zhejiang Jingxing Paper Co., Ltd., Jiaxing, Zhejiang Province, 314214 | 314214 | | CAO Haibing | Zhejiang Jingxing Paper Co., Ltd., Jiaxing, Zhejiang Province, 314214 | 314214 | | HUA Feiguo | Zhejiang Jinjiahao Green Nanomaterial Co., Ltd., Quzhou, Zhejiang Province, 324400 | 324400 | | AN Xingye* | Tianjin Key Lab of Pulp and Paper, Tianjin University of Science & Technology, Tianjin, 300457
State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science & Technology, Tianjin,300457 | 300457 |
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| Abstract:This study analyzed the effect of cellulose nanofibril（CNF）/pullulanase（Pul）system on the performance of starch film. The results showed that the CNF/Pul treated starch exhibited higher short-range orderliness and more double helix structure，and there were additional B-type typical peaks existing in the treated starch. The obtained starch film with CNF/Pul treatment had good surface uniformity and better strength property. The tensile strength of starch film was increased from 2.44 MPa（Nature-StF） to 7.32 MPa（CNF/Pul-StF）， with a 200% increase. The results of the light/water vapor transmittance test indicate that the starch film treated with the CNF/Pul system had better optical transmittance and a certain enhancement effect on the water vapor barrier performance. The optical transmittance of starch film treated with CNF/Pul system increased from 49.3%~51.2% （Nature-StF） to 56.1%~60.1% （CNF/Pul-StF）， and water vapor transmission index， decreased from 9.26×10-12 g·cm/(Pa·s·cm2) （Nature-StF） to 6.33×10-12 g·cm/(Pa·s·cm2) （CNF/Pul-StF）. |
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