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Preparation of POSS Modified PLLA Film and Research of Its Part Properties

机译：POSS改性PLLA薄膜的制备及其零件性能研究。

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摘要

Star-shaped POSS-g-PLLA is prepared by using L-lactic acid (L-LA) and octa (γ-chloroammoniumpiopyl) octasilsesquioxane (POSS-NH_3C1). Then, a series of modified PLLA films are prepared by using POSS-g-PLLA, and their part properties are investigated. The conclusions are as follows: (1) Water absorption of modified PLLA films increases with the increase of POSS-NH_3CI, and the maximum is up to 11.35 %. (2) Oil resistance of the modified PLLA films is decreased, but it is not affected by the dosage of POSS-NH_3C1. (3) Air permeability of the modified PLLA films is excellently increased, and the maximum is 11.3 g/(m~2 • 24 h). (4) Water vapor permeability of the modified PLLA films is obviously decreased, and the minimum is 38.5 g/(m~2 • 24 h) which is obviously lower than that of PLLA films (112.7 g/(m~2 • 24 h)).
机译：星形POSS-g-PLLA通过使用L-乳酸（L-LA）和八辛基（γ-氯铵基吡啶基）八聚倍半硅氧烷（POSS-NH_3C1）制备。然后，使用POSS-g-PLLA制备了一系列改性的PLLA膜，并研究了它们的部分性能。结论如下：（1）改性POSA薄膜的吸水率随POSS-NH_3CI的增加而增加，最大值达到11.35％。 （2）改性的PLLA薄膜的耐油性降低，但不受POSS-NH_3C1用量的影响。 （3）改性PLLA薄膜的透气性显着提高，最大值为11.3 g /（m〜2•24 h）。 （4）改性PLLA膜的水蒸气透过率明显降低，最小值为38.5 g /（m〜2•24 h），明显低于PLLA膜的水蒸气透过率（112.7 g /（m〜2•24 h） ））。

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