A New Modified Method to Obtain a High Melt Index of PLA Polymer and Preparation of Melt-Blown Nonwoven Cloth 


Vol. 24,  No. 10, pp. 3405-3419, Oct.  2023
10.1007/s12221-023-00317-2


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  Abstract

Due to the low melt index of polylactic acid (PLA) polymer, it is difficult to melt-blown processing. Here, a new modified method to obtain a high melt index of PLA polymer and melt-blown nonwoven cloth was studied. PLA polymers are modified by the thermally degraded method of stannous octoate (Sn(Oct)2) and polyethylene glycol (PEG) to obtain a high melt index (1054 g/10 min) in comparison with a low melt index (23 g/10 min) of original unmodified PLA polymer. The fiber of modified PLA polymer melt-blown cloth is obviously thinner, having sub-micron fibers, the smallest fiber is about 200 nm. From our test, modified PLA polymer melt-blown cloth has good oil absorption, oil–water separation, and potential air filtration property. In terms of degradation, the modified PLA polymer melt-blown cloth showed excellent degradation performance in basic aqueous solutions at 55 °C at pH 12, reaching a degradation rate of around 95% at 60 h.

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  Cite this article

[IEEE Style]

Q. Lin, J. Feng, L. Zhao, "A New Modified Method to Obtain a High Melt Index of PLA Polymer and Preparation of Melt-Blown Nonwoven Cloth," Fibers and Polymers, vol. 24, no. 10, pp. 3405-3419, 2023. DOI: 10.1007/s12221-023-00317-2.

[ACM Style]

Qian Lin, Jianyong Feng, and Lixia Zhao. 2023. A New Modified Method to Obtain a High Melt Index of PLA Polymer and Preparation of Melt-Blown Nonwoven Cloth. Fibers and Polymers, 24, 10, (2023), 3405-3419. DOI: 10.1007/s12221-023-00317-2.

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