Anomalous high-infrared reflectance of extruded polyoxymethylene
Polarized infrared (IR) reflectance measurements were performed on polyoxymethylene (POM) prepared by the extrusion method, and an abnormally high reflectance of ∼90% was observed along the extruded direction in the 1000 cm−1–900 cm−1 region. High reflectivity was found in samples made by the conven...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2020-09-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0020445 |
| _version_ | 1818414926973108224 |
|---|---|
| author | Naoto Nagai Hideki Okada Yuko Amaki Miyuki Okamura Takuma Fujii Takaki Suzuki Akihiro Takayanagi Sumito Nakagawa |
| author_facet | Naoto Nagai Hideki Okada Yuko Amaki Miyuki Okamura Takuma Fujii Takaki Suzuki Akihiro Takayanagi Sumito Nakagawa |
| author_sort | Naoto Nagai |
| collection | DOAJ |
| description | Polarized infrared (IR) reflectance measurements were performed on polyoxymethylene (POM) prepared by the extrusion method, and an abnormally high reflectance of ∼90% was observed along the extruded direction in the 1000 cm−1–900 cm−1 region. High reflectivity was found in samples made by the conventional injection molding. However, the response of the extrusion sample was higher than that of the injection sample, which can be attributed to the Reststrahlen band. The relative permittivity calculated from the polarized reflection spectrum of the extruded direction shows a notably deep negative region in this high reflectance frequency. Using x rays, by differential scanning calorimetry, and by field emission scanning electron microscopy characterization, the difference in crystallinity and morphology from the extrusion and the injection molding plate was investigated, and the difference in IR optical response was discussed. The conventional IR band assignment of POM was also discussed. |
| first_indexed | 2024-12-14T11:26:52Z |
| format | Article |
| id | doaj.art-b9c33f9574964e36b225b0053a83e304 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-14T11:26:52Z |
| publishDate | 2020-09-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-b9c33f9574964e36b225b0053a83e3042022-12-21T23:03:31ZengAIP Publishing LLCAIP Advances2158-32262020-09-01109095201095201-1110.1063/5.0020445Anomalous high-infrared reflectance of extruded polyoxymethyleneNaoto Nagai0Hideki Okada1Yuko Amaki2Miyuki Okamura3Takuma Fujii4Takaki Suzuki5Akihiro Takayanagi6Sumito Nakagawa7Industrial Research Institute of Niigata Prefecture, 1-11-1 Abumi Nishi, Niigata 950-0915, JapanIndustrial Research Institute of Niigata Prefecture, 1-11-1 Abumi Nishi, Niigata 950-0915, JapanIndustrial Research Institute of Niigata Prefecture, 1-11-1 Abumi Nishi, Niigata 950-0915, JapanC. I. Takiron Corporation R&D Center, 3-3-1 Maruyama, Konan, Shiga 520-3185, JapanC. I. Takiron Corporation R&D Center, 3-3-1 Maruyama, Konan, Shiga 520-3185, JapanC. I. Takiron Corporation R&D Center, 3-3-1 Maruyama, Konan, Shiga 520-3185, JapanC. I. Takiron Corporation R&D Center, 3-3-1 Maruyama, Konan, Shiga 520-3185, JapanC. I. Takiron Corporation R&D Center, 3-3-1 Maruyama, Konan, Shiga 520-3185, JapanPolarized infrared (IR) reflectance measurements were performed on polyoxymethylene (POM) prepared by the extrusion method, and an abnormally high reflectance of ∼90% was observed along the extruded direction in the 1000 cm−1–900 cm−1 region. High reflectivity was found in samples made by the conventional injection molding. However, the response of the extrusion sample was higher than that of the injection sample, which can be attributed to the Reststrahlen band. The relative permittivity calculated from the polarized reflection spectrum of the extruded direction shows a notably deep negative region in this high reflectance frequency. Using x rays, by differential scanning calorimetry, and by field emission scanning electron microscopy characterization, the difference in crystallinity and morphology from the extrusion and the injection molding plate was investigated, and the difference in IR optical response was discussed. The conventional IR band assignment of POM was also discussed.http://dx.doi.org/10.1063/5.0020445 |
| spellingShingle | Naoto Nagai Hideki Okada Yuko Amaki Miyuki Okamura Takuma Fujii Takaki Suzuki Akihiro Takayanagi Sumito Nakagawa Anomalous high-infrared reflectance of extruded polyoxymethylene AIP Advances |
| title | Anomalous high-infrared reflectance of extruded polyoxymethylene |
| title_full | Anomalous high-infrared reflectance of extruded polyoxymethylene |
| title_fullStr | Anomalous high-infrared reflectance of extruded polyoxymethylene |
| title_full_unstemmed | Anomalous high-infrared reflectance of extruded polyoxymethylene |
| title_short | Anomalous high-infrared reflectance of extruded polyoxymethylene |
| title_sort | anomalous high infrared reflectance of extruded polyoxymethylene |
| url | http://dx.doi.org/10.1063/5.0020445 |
| work_keys_str_mv | AT naotonagai anomaloushighinfraredreflectanceofextrudedpolyoxymethylene AT hidekiokada anomaloushighinfraredreflectanceofextrudedpolyoxymethylene AT yukoamaki anomaloushighinfraredreflectanceofextrudedpolyoxymethylene AT miyukiokamura anomaloushighinfraredreflectanceofextrudedpolyoxymethylene AT takumafujii anomaloushighinfraredreflectanceofextrudedpolyoxymethylene AT takakisuzuki anomaloushighinfraredreflectanceofextrudedpolyoxymethylene AT akihirotakayanagi anomaloushighinfraredreflectanceofextrudedpolyoxymethylene AT sumitonakagawa anomaloushighinfraredreflectanceofextrudedpolyoxymethylene |