Earticle

초록

영어

Soy protein isolate (SPI)-based nanocomposite films with three different types of nanoclays, such as Cloisite Na+, Cloisite 20A, and Cloisite 30B, were prepared using a solution casting method, and their optical, tensile, and water vapor barrier properties were determined to investigate the effect of nano-clay type on film properties. Among the tested nanoclays, Cloisite Na+, a hydrophilic montmorillonite (MMT), exhibited the highest transparency with least opaqueness, the highest tensile strength, and the highest water vapor barrier properties, indicating Cloisite Na+ is the most compatible with SPI polymer matrix to form nanocomposite films. The film properties of SPI/Cloisite Na+ nanocomposite films were strongly dependent on the concentration of the clay. Film properties such as optical, tensile, and water vapor barrier properties improved significantly (p<0.05) as the concentration of clay increased. However, the effectiveness of addition of the clay reduced above a certain level (i.e., 5wt%), indicating that there is an optimum amount of clay addition to exploit the full advantage of nanocmposite films.

목차

Abstract
 Introduction
 Materials and Methods
  1. Materials
  2. Preparation of films
  3. X-ray Diffraction (XRD) analysis
  4. Film thickness and conditioning
  5. Transparency (T660) and opacity
  6. Tensile strength (TS) and percentage elongationat break (E)
  7. Water vapor permeability (WVP)
  8. Statistical analysis
 Results and Discussion
  1. XRD analysis
  2. Effect of clay type
  3. Effect of clay content
 Acknowledgments
 References

키워드

저자

• Jong-Whan Rhim [ Department of Food Engineering, Mokpo National University ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국포장학회지 [Journal of Korea Society of Packaging Science & Technology]

• 간기

  연3회

• pISSN

  1226-0207

• 수록기간

  1994~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 530 DDC 620