tailieunhanh - Dissertation summary Organic chemistry: Study on the manufacturing and properties of gas barrier multilayers films and applications

Objectives of the dissertation: Researching and fabricating gas barrier multilayer films based on the polyme blends and exploring the applicability of packaging to preserve dry agricultural products. | MINISTERY OF EDUCATION VIETNAM ACADEMY OF AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY ------------- NGUYEN TUAN NAM STUDY ON THE MANUFACTURING AND PROPERTIES OF GAS BARRIER MULTILAYERS FILMS AND APPLICATIONS Scientific Field Organic Chemistry Classification Code 62 44 01 14 DISSERTATION SUMMARY HA NOI - 2020 The dissertation was completed at Institute of Chemistry Vietnam Academy of Science and Technology Scientific Supervisors 1. Dr. Nguyen Tien Dung The Faculty of Chemistry Hanoi National University of Education 2. Dr. Nguyen Thanh Tung Institute of Chemistry - Vietnam Academy of Science and Technology 1st Reviewer . . . 2nd Reviewer . . . 3rd Reviewer . . . The dissertation will be defended at Graduate University of Science And Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Cau Giay District Ha Noi City. At . hour . date . month .2020. The dissertation can be found in National Library of Vietnam and the library of Graduate University of Science And Technology Vietnam Academy of Science and Technology. 1 A. INTRODUCTION 1. Background Packaging plays an important role in the food supply chain. They are not only used to store preserve and transport products but also used as a marketing tool to bring added value to the product. Packaging protects food from environmental influences such as oxygen moisture light dust volatile compounds and microorganisms 1 it acts as a barrier between the atmosphere around food and the outside environment. Oxygen and steam are the two main reasons leading to the deterioration of food quality. Therefore the development of the gas barrier packaging products with low air and water vapor permeability is a research direction that has been interested recently. According to Smithers Pira in 2015 the world consumed about million tons of gas barrier packaging films in 2016 it was million tons with the growth rate of year. The regions using the most gas barrier .