FORMATION OF CELLULOSE- COMPATIBLE HYBRIDS BY COAGGREGATION OF MINERAL FILLER PARTICLES AND STARCH GRANULES
The sustainable,efficient use of renewable bio-based additives in the production of various materials fits well into the concept of sustainability.Here,the concept of coaggregation of mineral filler particles and starch granules for improving filler-fiber interaction in paper-based cellulosic networks is presented.Coaggregation of precipitated calcium carbonate filler particles and uncooked,unmodified corn starch granules by cationic polyacrylamide(a cationic high molecular weight polymer flocculant)in combination with bentonite(an anionic microparticle)prior to addition to cellulosic fiber slurry delivered enhanced filler bondability with cellulosic fibers.For instance,under the conditions studied,preaggregation resulted in an increase in filler bondability factor from 9.24 to 15.21 at starch dosage of 1%(on the basis of the dry weight of papermaking stock).The swelling and gelatinization of the starch granules in starch-filler preaggregates or hybrids enabled the “bridging of the gaps in cellulosic networks,leading to structural consolidation and strength enhancement.
Ting Li Jun Fan Wensen Chen Jiayan Shu Xueren Qian Haifeng Wei Qingwen Wang Jing Shen
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education,Northeast Fores Jiangsu University of Science and Technology,Zhenjiang 212003,China Key Laboratory of Bio-based Material Science and Technology of Ministry of Education,Northeast Fores
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-10
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）