Premixing of Isolated Soy Protein Retention-aid Polymer with Precipitated Calcium Carbonate Filler on Properties of Recycled Writing and Printing Paper

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Safizadeh A.; JALALI TORSHIZI H.; RUDI H.R.; PARTOVINIA A.

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Journal: Journal of Wood and Forest Science and Technology Year:2019 | Volume:26 | Issue:1 Page(s): 117-128

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Title

Premixing of Isolated Soy Protein Retention-aid Polymer with Precipitated Calcium Carbonate Filler on Properties of Recycled Writing and Printing Paper

Author(s)

Safizadeh A. | JALALI TORSHIZI H. | RUDI H.R. | PARTOVINIA A. | Issue Writer Certificate

Keywords

Isolated Soy ProteinQ1

Precipitated Calcium CarbonateQ1

Writing and Printing Recycled Paper PropertiesQ1

Abstract

Background and Objectives: Paper is considered as a composite produced of lignocellulosic fibers and mineral and/or organic additives. The lignocellulosic fibers shortage together with economical, technical and environmental aspects ever increased mineral fillers application in papermaking. In order to improve the recycled pulp properties, the filler consumption is highly considered, recently. Therefore, effects of Precipitated Calcium Carbonate (PCC) and its premixing with Isolated Soy Protein (ISP) on paper properties recycled from writing and printing papers were investigated. Materials and Methods: Pulp recycled from printing and writing papers was supplied from Atrak Pulp and Paper Co. stock preparation point without any additives. PCC (10, 12 and 15% based on O. D paper mass) and ISP (10 and 15% based on PCC mass) were added individually and as the premixed composite to the recycled pulp. Laboratory hand sheets (60 g/m2) were made and have been compared according to SEM images, opacity, brightness, caliper, grammage, bulk and burst strength. Results: SEM images revealed fillers presence in paper structure and its flocculation due to the ISP polymer usage. Increasing of filler addition replacing the recycled fibers reduced caliper, grammage and burst index of paper and also increased the bulk and brightness, continuously. Individually addition of ISP and without filler increased grammage and caliper and reclined burst index, without effect on the other properties. PCC-ISP premixing drastically improved caliper, bulk and the paper grammage, but opacity and brightness were stable compared to ISP-free samples. Conclusion: PCC-ISP premixing enhanced bulk, caliper, grammage, brightness and in some cases burst strength of paper from recycled printing and writing papers. Retention behavior of ISP polymer was proved by scanning electron microscopy observations, in addition to the physical properties. The retention role is an important benefit regarding to several aspects of economical and environmental due to higher productivity and the biomaterial loss reduction, resp. Processing features also take benefits because of blockage and shutdown decrease and production rate increment. Lipophilic part of ISP is probably hindered fiber bonding, resulted in structure strengthening, unevenly.

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APA: Copy

Safizadeh, A., JALALI TORSHIZI, H., RUDI, H.R., & PARTOVINIA, A.. (2019). Premixing of Isolated Soy Protein Retention-aid Polymer with Precipitated Calcium Carbonate Filler on Properties of Recycled Writing and Printing Paper. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 26(1 ), 117-128. SID. https://sid.ir/paper/406682/en

Vancouver: Copy

Safizadeh A., JALALI TORSHIZI H., RUDI H.R., PARTOVINIA A.. Premixing of Isolated Soy Protein Retention-aid Polymer with Precipitated Calcium Carbonate Filler on Properties of Recycled Writing and Printing Paper. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2019;26(1 ):117-128. Available from: https://sid.ir/paper/406682/en

IEEE: Copy

A. Safizadeh, H. JALALI TORSHIZI, H.R. RUDI, and A. PARTOVINIA, “Premixing of Isolated Soy Protein Retention-aid Polymer with Precipitated Calcium Carbonate Filler on Properties of Recycled Writing and Printing Paper,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 26, no. 1 , pp. 117–128, 2019, [Online]. Available: https://sid.ir/paper/406682/en

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