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通过聚电解质和α-磷酸锆纳米片的四层组装形成的纳米砖壁结构造就了具有超高氧气阻隔性能的聚酯薄膜。

Nano-Brick Wall Architectures Account for Super Oxygen Barrier PET Film by Quadlayer Assembly of Polyelectrolytes and α-ZrP Nanoplatelets.

作者信息

Han Dongmei, Luo Yiqing, Ju Qing, Xiao Xujing, Xiao Min, Xiao Naiyu, Chen Shou, Peng Xiaohua, Wang Shuanjin, Meng Yuezhong

机构信息

The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province/State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China.

School of Chemical Engineering and Technology, Sun Yat-Sen University, Guangzhou 510275, China.

出版信息

Polymers (Basel). 2018 Sep 29;10(10):1082. doi: 10.3390/polym10101082.

DOI:10.3390/polym10101082
PMID:30961007
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6403992/
Abstract

Nanobrick wall hybrid coating with super oxygen barrier properties were fabricated on polyethylene terephthalate (PET) film using a quadlayer (QL) assembly of polyelectrolytes and nanoplateles. A quadlayer assembly consists of three repeat units of polyacrylic acid (PAA), poly (dimethyl diallyl ammonium chloride) (PDDA) and layered α-zirconium phosphate (α-ZrP). PDDA with positive charges can assemble alternatively with both α-ZrP and PAA with negative charges to form nanobrick wall architectures on the surface of PET film via the electrostatic interaction. The lamellar structure of α-ZrP platelets and the dense QL assembly coating can greatly reduce the oxygen transmission rate (OTR) of PET film. Compared to pristine PET film, the OTR of PET (QL) is reduced from 57 to 0.87 cc/m²/day. Moreover, even with 19 QLs coating, PET (QL) composite film is still with an optical transparency higher than 90% and a haze lower than 10%. Therefore, the transparent PET (QL) composite films with super oxygen barrier properties show great potential application in food packaging and flexible electronic packaging.

摘要

采用聚电解质和纳米片的四层（QL）组装法，在聚对苯二甲酸乙二酯（PET）薄膜上制备了具有超氧阻隔性能的纳米砖壁杂化涂层。一个四层组装由聚丙烯酸（PAA）、聚（二甲基二烯丙基氯化铵）（PDDA）和层状α-磷酸锆（α-ZrP）的三个重复单元组成。带正电荷的PDDA可以通过静电相互作用与带负电荷的α-ZrP和PAA交替组装，在PET薄膜表面形成纳米砖壁结构。α-ZrP片层的层状结构和致密的QL组装涂层可以大大降低PET薄膜的透氧率（OTR）。与原始PET薄膜相比，PET（QL）的OTR从57降至0.87 cc/m²/天。此外，即使有19层QL涂层，PET（QL）复合薄膜仍具有高于90%的光学透明度和低于10%的雾度。因此，具有超氧阻隔性能的透明PET（QL）复合薄膜在食品包装和柔性电子包装中显示出巨大的潜在应用价值。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/bf6689767a95/polymers-10-01082-g015.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/3ae06d019fc3/polymers-10-01082-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/e79bc1af564d/polymers-10-01082-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/ceef93c0a88c/polymers-10-01082-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/7108fb1c924c/polymers-10-01082-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/acf87f482889/polymers-10-01082-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/24d1616df77e/polymers-10-01082-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/63e922f40e70/polymers-10-01082-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/bf6689767a95/polymers-10-01082-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/f10e4a3f1292/polymers-10-01082-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/e35f431db432/polymers-10-01082-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/91b84cf1a8ba/polymers-10-01082-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/3579c85f7ec6/polymers-10-01082-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/435558ae947d/polymers-10-01082-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/bdf891d85e15/polymers-10-01082-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/df4639e3ab3f/polymers-10-01082-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/3ae06d019fc3/polymers-10-01082-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/e79bc1af564d/polymers-10-01082-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/ceef93c0a88c/polymers-10-01082-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/7108fb1c924c/polymers-10-01082-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/acf87f482889/polymers-10-01082-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/24d1616df77e/polymers-10-01082-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/63e922f40e70/polymers-10-01082-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/28f6/6403992/bf6689767a95/polymers-10-01082-g015.jpg

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