title: Filler modification for papermaking with starch/oleic acid complexes with the aid of calcium ions.
abstract: To mitigate the negative effect of filler addition on paper strength and improve filler retention, filler modification with hydrogen bonding polymers (e.g., starch) or their composites is an interesting research topic. Differing from previous reports, the concept related to the deposition of starch/oleic acid complexes on precipitated calcium carbonate (PCC) with the aid of calcium ions was demonstrated. The introduction of calcium ions resulted in effective starch deposition. As a result of filler modification, filler retention and the tensile strength of the filled paper were simultaneously improved essentially due to the aggregation of PCC particles in filler modification process as well as improved filler bondability. The concept demonstrated in this brief study may provide an alternative approach to filler bondability enhancement for improved papermaking performances.
authors.affiliation: Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
authors.forename: Xiujie
authors.initials: X
authors.lastname: Huang
authors.forename: Jing
authors.initials: J
authors.lastname: Shen
authors.forename: Xueren
authors.initials: X
authors.lastname: Qian
mesh_terms: D002119:Calcium Carbonate / Q000737:chemistry*; D019301:Oleic Acid / Q000737:chemistry*; D010209:Paper; D013213:Starch / Q000737:chemistry*
chemical_list: D019301:Oleic Acid; D013213:Starch; D002119:Calcium Carbonate
keywords: Calcium ions; Fillers; Papermaking; Precipitated calcium carbonate; Starch/oleic acid complexes