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        蛭石/PBAT復合薄膜的制備與性能
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        作者單位:

        1.貴州民族大學化學工程學院;2.貴州民族大學化學工程學院 貴州 貴陽

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        中圖分類號:

        TQ324.9

        基金項目:

        國家自然科學(52163001);貴州民族大學科研平臺資助項目(GZMUGCZX[2021]01);貴州省省級科技計劃項目資助(黔科合平臺人才-CXTD[2021]005,黔科合平臺人才-GCC[2022]010-1,黔科合基礎[2020]1Y211);貴州省省級科技計劃項目資助(黔科合成果(2019)4022號);貴陽市專家工作站(ZJGZZ2021-07);貴陽市白云區科技計劃項目(白科合同[2020]28號)。


        Preparation and properties of vermiculite /PBAT composite films
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        School of Chemical Engineering of Guizhou Minzu University

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          摘要:

          使用蛭石(VMT)作為填料,以可生物降解的聚對苯二甲酸-己二酸丁二醇酯(PBAT)作為基體,采用熔融-吹塑法制備出蛭石/聚對苯二甲酸-己二酸丁二醇酯(VMT/PBAT)復合薄膜,并通過添加聚苯乙烯馬來酸酐共聚物(SMA)作為相容劑制備了VMT/PBAT/SMA復合薄膜。對純PBAT薄膜、VMT/PBAT和VMT/PBAT/SMA復合薄膜的熱性能、流變性能、水蒸汽阻隔性能、斷面微觀結構和力學性能進行了測試。結果表明,相比純PBAT薄膜,蛭石的填充使VMT/PBAT復合薄膜的熱穩定性降低,相容劑SMA的添加增強了VMT/PBAT/SMA復合薄膜的熱穩定性;蛭石的添加使復合薄膜的結晶度降低了約2%。水蒸汽透過量測試表明,兩種復合薄膜水蒸汽阻隔性能符合國家標準;VMT的添加使VMT/PBAT復合薄膜的拉伸強度和斷裂伸長率降低,而添加相容劑SMA使VMT/PBAT/SMA復合薄膜的拉伸強度和斷裂伸長率相比VMT/PBAT復合薄膜提高約10 %。

          Abstract:

          Using vermiculite (VMT) as filler and biodegradable polyterephthalate-butanediol ester (PBAT) as matrix, vermiculite/polyterephthalate-butanediol ester (VMT/PBAT) composite films were prepared by melt-blow molding method. VMT/PBAT/SMA composite films were prepared by adding polystyrene maleic anhydride copolymer (SMA) as compatibilizer. The thermal properties, rheological properties, water vapor barrier properties, micro-structure and mechanical properties of pure PBAT films, VMT/PBAT and VMT/PBAT/SMA composite films were tested. The results show that, compared with pure PBAT films, vermiculite filling reduces the thermal stability of VMT/PBAT composite films, and the addition of SMA compatibilizing agent enhances the thermal stability of VMT/PBAT/SMA composite films. The addition of vermiculite reduces the crystallinity of the composite film by about 2%. The water vapor permeability test shows that the water vapor barrier performance of the two composite films conforms to the national standard. The addition of VMT reduced the tensile strength and elongation at break of VMT/PBAT composite film, while the addition of compatibilizer SMA increased the tensile strength and elongation at break of VMT/PBAT composite film by about 10% compared with that of VMT/PBAT composite film.

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        尚曉煜,薛禹,李坤天,譚妍妍,譚芳,張道海.蛭石/PBAT復合薄膜的制備與性能[J].精細化工,2023,40(8):

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        • 收稿日期:2022-09-14
        • 最后修改日期:2023-02-17
        • 錄用日期:2023-02-22
        • 在線發布日期: 2023-05-11
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