The SSF optima for waste newspaper were: 72 hours,an enzyme loading of 20FPU/g substrate,10% inoculum(V/V) and 0.17% Tween-20 addition. Under the above optimum conditions the yield in terms of grams of ethanol produced per gram of waste newspaper utilized was 0.241 6g/g,which corresponds to 62.6% of the theoretical yield.
Maleic anhydride grafted natural rubber (MNR) was used as modifier, and its effect on the mechanical properties and thermal property of waste newspaper flour (PF) filled PVC composites was studied.
The cellulose from waste newspaper was used in the preparation of a chelating resin containing acetoacetate groups by reacting cellulose with diketene in a mixed solution of benzene and nI-hexane at 70℃ for 1.5 hours.
This paper investigates the optimal condition of Na2SO3 and DTPA pretreatment prior to H2O2 bleaching of ONP deinked pulp and compares the effect of Na2SO3 and DTPA pretreatment with CO(NH2)2,DTPA,H2SO4,EDTA pretreatments in their optimal conditions.
Comparison of mechanical properties of the agro-residue filled PP with that of the wood flour and the old newsprint filled PP showed the suitability of the agro-residues as alternative filler for thermoplastics.
Board-shaped composites with medium density (MDF) were prepared from isolated lignins and waste newspaper, in addition to preparation of the composites with high density (HB).
Detailed experimental results, obtained from a large testbed of old newspaper issues, are presented which clearly demonstrate the applicability of our methodology to the successful retro-conversion of newspaper material.