| 摘要 |
FIELD: chemistry.SUBSTANCE: method of producing recyclable mineral paper having a composition comprising 60-85 wt % natural inorganic mineral powder, 5-40 wt % polypropylene and 1-5 wt % additive agents, through the following steps: feeding and mixing components of the composition; stirring and mixing the composition; pressing to cause bi-directional extension of the composition so as to form a sheet; processing the sheet in a high density squeezing machine for further mixing and pressing of the sheet; reversely turning and shaping the sheet for further extension and continuous compression and extension of the sheet for further bi-directional extension of the sheet in both lateral and longitudinal directions and to control thickness of the sheet.EFFECT: invention provides a method of producing recyclable mineral paper.6 cl, 15 dwg |
