Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Takeshi Sako"'
Publikováno v:
Energies, Vol 15, Iss 7, p 2594 (2022)
The performance of CO2-expanded hexane in the vapor-liquid two-phase region was examined to extract phosphorus-free bio-oil from rice bran. Previously, it was found that in the uniform liquid phase region, it is difficult to maintain the phosphorus c
Externí odkaz:
https://doaj.org/article/b7aa520aa76d47e38709d2b71773ae34
Publikováno v:
Polymers, Vol 12, Iss 11, p 2434 (2020)
Polylactic acid (PLA) is expected to replace many general-purpose plastics, especially those used for food packaging and agricultural mulch. In composting, the degradation speed of PLA is affected by the molecular weight, crystallinity, and microbial
Externí odkaz:
https://doaj.org/article/437fff030c3e472098189fcf6e7af8b5
Publikováno v:
Polymers, Vol 12, Iss 9, p 2012 (2020)
An environmentally friendly and efficient polymer coating method for micro-sized particles was developed using supercritical CO2. Because this method used supercritical CO2 as the solvent to dissolve the coating material, we avoided environmental pol
Externí odkaz:
https://doaj.org/article/a0a1d1f7048243858d0b4e01c80d61fb
Publikováno v:
BioEnergy Research.
Efficient, low-cost methods are required to produce impurity-free bio-oils with minimal nutrient depletion. This study investigated the effect of extraction and pretreatment conditions on the quality of rice bran oil extracted with CO2-expanded hexan
Autor:
Idzumi Okajima, Takeshi Sako
Publikováno v:
Polymer Degradation and Stability. 163:1-6
Carbon-fiber-reinforced plastic (CFRP) can be difficult to recycle owing to the presence of thermosetting plastics such as epoxy resin. Therefore, it is important to develop more efficient methods for recycling CFRP. Herein, we investigated the chemi
Publikováno v:
Polymer Degradation and Stability. 162:22-28
Poly(p-phenylene terephthalamide) (Kevlar®) fibers, with good chemical and mechanical strengths, were hydrolyzed into their constituent p-phenylenediamine and terephthalic acid monomers using supercritical water, subcritical water, and subcritical w
Autor:
Guoxiao Cai, Wataru Katsumata, Idzumi Okajima, Takeshi Sako, Toshitaka Funazukuri, Chang Yi Kong
Publikováno v:
Journal of Molecular Liquids. 354:118860
Publikováno v:
Chemical Engineering and Processing - Process Intensification. 166:108502
CO2-expanded hexane is used to extract phosphorus-free bio-oil from rice bran, which constitutes the main byproduct of the rice milling process, containing approximately 20–25 wt% oil. Optimal extraction conditions, namely 25 °C temperature, 5.1 M
Publikováno v:
Polymer Degradation and Stability. 187:109547
To establish the chemical recycling of copoly(p-phenylene-3,4′-oxydiphenylene terephthalamide) fibers (i.e., Technora®), their hydrolysis in pure supercritical, pure subcritical, and alkaline subcritical water was investigated, and an efficient pu
Publikováno v:
Journal of the Japan Society for Technology of Plasticity. 58:985-989