文献类型：期刊文献

英文题名：MODIFICATION OF PRECIPITATED CALCIUM CARBONATE FILLER USING SODIUM SILICATE/ZINC CHLORIDE BASED MODIFIERS TO IMPROVE ACID-RESISTANCE AND USE OF THE MODIFIED FILLER IN PAPERMAKING

作者：Shen, Jing[1,2] Song, Zhanqian[3,4] Qian, Xueren[1] Liu, Wenxia[5]

第一作者：Shen, Jing

通信作者：Qian, XR[1]

机构：[1]NE Forestry Univ, Lab Pulp & Paper Engn Subject, Key Lab Biobased Mat Sci & Technol, Minist Educ,Mat Sci & Engn Coll, Harbin 150040, Peoples R China;[2]Tianjin Univ Sci & Technol, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[4]State Forestry Adm, Key & Open Lab Forest Chem Engn, Nanjing 210042, Peoples R China;[5]Univ Pk Sci & Technol, Key Lab Paper Sci & Technol, Minist Educ, Shandong Inst Light Ind, Jinan 250353, Peoples R China

年份：2009

卷号：4

期号：4

起止页码：1498-1519

外文期刊名：BIORESOURCES

收录：;EI(收录号：20101512836571);Scopus(收录号：2-s2.0-77950496726);WOS:【SCI-EXPANDED(收录号:WOS:000271494300018)】；

基金：Support from the Foundation (No. 0802) of Key Laboratory of Paper Science & Technology of Ministry of Education (Shandong Institute of Light Industry), and Foundation (No. 200910) of Tianjin Key Laboratory of Pulp & Paper (Tianjin University of Science and Technology), P. R. China, is gratefully acknowledged. The authors wish to express their thanks for a grant (No. 07007) from Northeast Forestry University, P. R. China, which has provided vital support. The authors also wish to thank K. C. Wang, an undergraduate student who started his higher education in 2005 in Material Science and Engineering College, Northeast Forestry University, China, for conducting the experimental work concerning handsheet preparation and measurement of handsheet properties.

语种：英文

外文关键词：Sodium silicate/zinc chloride based modifiers; Filler modification; Papermaking; Precipitated calcium carbonate filler; Acid-resistant property; Deinked pulp; Optical properties; Surface encapsulation; XPS; SEM

摘要：In order to improve the acid-resistant property of papermaking grade precipitated calcium carbonate filler and to obtain modified filler in powder form, sodium silicate/zinc chloride based modifiers were used in filler modification, and the use of modified filler in papermaking of deinked pulp derived from recycled newspaper was also preliminarily investigated. Under the preliminarily optimized experimental conditions, when sodium silicate, zinc chloride, sodium hexametaphosphate, and phosphoric acid with dosages of 10 wt%, 3 wt%, 1 wt% and 0.2 wt%, respectively, were used as modifiers, and when the temperature, aging time, and PCC concentration during the filler modification process was 70 degrees C, 7 h and 9.1 wt%, respectively, the acid-resistant property of filler was significantly improved after modification, as evaluated using alum consumption and pH methods. The use of modified precipitated calcium carbonate filler prepared under the optimized conditions provided considerably more brightness and light scattering improvement in comparison to unmodified filler, and filler modification was found to have only negligible influence on tensile and burst strength of the paper, air permeability of the paper, and retention performance of the filler. Surface analysis of the modified filler using XPS and SEM confirmed the occurring of surface encapsulation and modification of precipitated calcium carbonate filler when the relevant modifiers were used in filler modification. The encapsulating effect of modifiers on filler was thought to be favorable to improvement in acid-resistant property, and optical properties of the filled paper.