Wanmei Lin, Yongsheng Ni, Yuanzhao Li, Jie Pang, Chunhua Wu. Preliminary Study on Degradation of Konjac Glucomannan by Laser[J]. Laser & Optoelectronics Progress, 2018, 55(5): 051407
- Laser & Optoelectronics Progress
- Vol. 55, Issue 5, 051407 (2018)
Fig. 1. Schematics of laser processing. (a) Diagram of equipment operating; (b) diagram of sample processing
Fig. 2. Effect of laser treatment time on viscosity of group A samples
Fig. 3. Effect of laser treatment time on viscosity of group B samples
Fig. 4. Stable shear viscosity of KGM samples after laser treatment. (a) Group A samples; (b) group B samples
Fig. 5. Modulus of KGM under optimum degradation conditions
Fig. 6. DSC analysis of KGM under optimum degradation conditions
Fig. 7. FT-IR analysis of KGM under optimum degradation conditions
Fig. 8. Diagrams of laser degradation mechanism. (a) Molecular chain cleavage; (b) β-1,4 glycosidic bond cleavage
Fig. 9. Molecular structures before and after laser degradation
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Table 1. Viscosity of KGM after treatment with different laser powers
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Table 2. Technical parameters of laser
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