PVC card material is divided into several
PVC card material is divided into several
PVC Card PVC materials according to the different: white PVC material available sub-divided into white and white whitening, frosted effect is the transparent surface of granular material or completely transparent shiny transparent materials. Wire thickness of 15 -200 wire.
PVC Chinese name: PVC. Identification of burning, softening or melting temperature range: 75 ~ 90 ° C; combustion: difficult to soften; burning flame Status: under the green on the yellow smoke; from the post-fire situations: from fire extinguished; Odor: pungent sour. Identification of solvent processing, solvents: tetrahydrofuran, cyclohexanone, methyl ketone, dimethyl formamide; non-solvent: methanol, acetone, heptane. Granulation can be recycled. PVC recycling process includes the following six steps: (1) of the PVC waste pretreatment; (2) in a mixed solvent selective dissolution; (3) separation of insoluble substances; (4) regeneration of the precipitation of PVC; (5) drying; (6) recovery and recycling of solvents