Affordable Access

deepdyve-link
Publisher Website

Reflectance According to Cell Size, Foaming Ratio and Refractive Index of Microcellular Foamed Amorphous Polymer.

Authors
  • Cha, Sung Woon1
  • Cho, Soo-Hyun1
  • Sohn, Joo Seong1
  • Ryu, Youngjae1
  • Ahn, Jeonghun2
  • 1 School of Mechanical Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea. , (North Korea)
  • 2 Molding Machines Division, LS Mtron, Anyang-si, Gyeonggi-do 14118, Korea. , (North Korea)
Type
Published Article
Journal
International Journal of Molecular Sciences
Publisher
MDPI AG
Publication Date
Dec 02, 2019
Volume
20
Issue
23
Identifiers
DOI: 10.3390/ijms20236068
PMID: 31810176
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Microcellular foamed plastic has a cell size of approximately 0.1 to 10 microns inside a foamed polymer and a cell density in the range of 109 to 1015 cells/cm3. Typically, the formation of numerous uniform cells inside a polymer can be effectively used for various purposes, such as lightweight materials, insulation and sound absorbing materials. However, it has recently been reported that these dense cell structures, which are induced through microcellular foaming, can affect the light passing through the medium, which affects the haze and permeability and causes the diffused reflection of light to achieve high diffuse reflectivity. In this study, the effects of cell size, foaming ratio and refractive index on the optical performance were investigated by applying the microcellular foaming process to three types of amorphous polymer materials. Thus, this study experimentally confirmed that the advantages of porous materials can be implemented as optical properties by providing a high specific surface area as a small and uniform cell formed by inducing a high foaming ratio through a microcellular foaming process.

Report this publication

Statistics

Seen <100 times