EFFECT OF RECYCLING AND RE-USE ON PULP AND PAPER PROPERTIES

Yıl 2012, Cilt: 1 Sayı: 1, 15 - 22, 01.06.2012

Olubunmi O. Ayodele Muhammad Usman Rauf Razzaq Muhammad Yaseen Adekunle.a. Emmanuel Folasegun A. Dawodu

Öz

Different grades of wastepaper such as white blank news Grade A , computer printout Grade B , magazine Grade C , old newsprint Grade D and packaging paper Grade E were recycled and the effect of recycling on pulp yield, fibre length, tensile strength, tear resistance, modulus of elasticity, stretch were investigated. The morphological and physical properties of fibres were affected by recycling and there were significant reduction in the physical properties of the recycled paper. Based on the findings of this investigation, Grade D and E handsheets were of better qualities for recycling back to marketable paper products

Anahtar Kelimeler

Wastepaper, recycled papers, handsheets, tensile strength, fibre lengths

Kaynakça

• Howard, R.C. and Bichard, W. J.Pulp Paper Sci. 1992, 18, 151-159..
• Scallan, A.M. & Tigerström, A. C.. Proceedings, first research forum on recycling, 1991, 149-154.
• Lundberg, R. And De Ruvo, A.. Svensk Papperstidn, 1978, 81, 355-357.
• Phipps, J. Paper Technology, 1994, 34-40.
• Scallan, A.M. and Tydeman, A.C. JPPSc, 1992, 18, 188.