The cover image designed by Yi-Chun Chen and Wen-Jau Lee depicts spherical phenol-formaldehyde (PF) beads using phenol-liquefied Japanese fir wood powder as raw material. effects of the polymerization degree addition amount granulating agent polyvinyl alcohol on particle size distribution, mechanical thermal properties were investigated. pore characteristics carbon made PF resin produced under ...

Phenol formaldehyde (phenolic resin) has a wide range of moldings. However, it immense consumption in manufacturing electrical equipment due to its insulating property. Phenolic resin retains properties at the freezing point, and also age cannot be determined. Due insulator property, use equipment. In this article, degree-based topological indices phenol are determined with help M-polynomial. W...

Abstract In order to improve the application range of lignin phenolic resin, thermoplastic resin was prepared by controlling molar ratio (formaldehyde: phenol) with liquefied lignin, phenol and formaldehyde as raw materials, fiber obtained melt spinning. The effects different curing bath acid proportion (40%, 50%, 60%) on mechanical property, thermal property morphology were investigated, behav...

A yeast isolate revealing unique enzymatic activities and substrate-dependent polymorphism was obtained from autochthonous microflora of soil heavily polluted with oily slurries. By means of standard yeast identification procedures the strain was identified as Trichosporon cutaneum. Further molecular PCR product analyses of ribosomal DNA confirmed the identity of the isolate with the genus Tric...