Polyvinyl Alcohol and Nano-Clay Based Solution Processed Packaging Coatings

被引：25

作者：

Chandio, Ali Dad ^{[1
]}

Channa, Iftikhar Ahmed ^{[1
,2
]}

Rizwan, Muhammad ^{[1
]}

Akram, Shakeel ^{[3
]}

Javed, Muhammad Sufyan ^{[4
,5
]}

Siyal, Sajid Hussain ^{[6
]}

Saleem, Muhammad ^{[7
]}

Makhdoom, Muhammad Atif ^{[2
]}

Ashfaq, Tayyaba ^{[8
]}

Khan, Safia ^{[9
]}

Hussain, Shahid ^{[10
,11
]}

Albaqami, Munirah D. ^{[12
]}

Alotabi, Reham Ghazi ^{[12
]}

机构：

[1] NED Univ Engn & Technol, Dept Mat & Met Engn, Univ Rd Karachi, Karachi 75270, Pakistan

[2] Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, D-91058 Erlangen, Germany

[3] Sichuan Univ, Coll Elect Engn, Chengdu 610065, Peoples R China

[4] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

[5] COMSATS Univ Islamabad, Dept Phys, Lahore 54000, Pakistan

[6] Dawood Univ Engn & Technol, Dept Met & Mat Engn, Karachi 74800, Pakistan

[7] Islamia Univ Bahawalpur Punjab, Dept Phys, Bahawalpur 63100, Pakistan

[8] Govt Coll Univ Faisalabad, Dept Chem, Faisalabad 38000, Pakistan

[9] Quaid I Azam Univ Islamabad, Dept Chem, Islamabad 45320, Pakistan

[10] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[11] Univ Cordoba, Dept Quim Organ, Edificio Marie Curie,C-3,Ctra Nnal 4-A,Km 396, E-14014 Cordoba, Spain

[12] King Saud Univ, Coll Sci, Chem Dept, Riyadh 11451, Saudi Arabia

来源：

COATINGS | 2021年 / 11卷 / 08期

关键词：

flexible barriers; flexible packaging; polyvinyl alcohol; nano-clay; moisture; permeability; BARRIER PROPERTIES; WATER-VAPOR; GAS BARRIER; FILMS; NANOCOMPOSITE; ENCAPSULATION; PERFORMANCE; OXYGEN;

D O I：

10.3390/coatings11080942

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cost-effective, clean, highly transparent, and flexible as well as a coatable packaging material is envisioned to solve or at least mitigate quality preservation issues of organic materials, originating from moisture interaction under ambient conditions. Liquid phase processing of packaging coatings using nano-clay and polyvinyl alcohol (PVOH) has been developed and reported. Detailed analysis of the developed coating revealed moisture permeability of 2.8 x 10(-2) g center dot cm/m(2)center dot day at 40 degrees C and 85% relative humidity (RH), which is in close accordance with Bharadwaj's theoretical permeability model. Moreover, the developed coatings are not only more than 90% transparent, when exposed to white light, but also exhibit excellent flexibility and even after going through 10,000 bending cycles maintained the same blocking effect against moisture.

引用

页数：11

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