Short-term steam treatment of MFC gel with and without water-soluble cellulose derivative

被引：0

作者：

Hiltunen, Salta ^{[1
]}

Heiskanen, Isto ^{[2
]}

Backfolk, Kaj ^{[1
]}

机构：

[1] Lappeenranta Univ Technol, LUT Sch Energy Syst, POB 20, FI-53851 Lappeenranta, Finland

[2] Stora Enso Res Ctr Imatra, Tainionkoskentie 115, FI-55800 Imatra, Finland

来源：

NORDIC PULP & PAPER RESEARCH JOURNAL | 2019年 / 34卷 / 01期

关键词：

carboxymethylcellulose (CMC); hydrothermal treatment; jet cooking; microfibrillated cellulose (MFC); CARBOXYMETHYL CELLULOSE; MICROFIBRILLATED CELLULOSE; SODIUM CARBOXYMETHYLCELLULOSE; RHEOLOGICAL PROPERTIES; PHYSICAL-PROPERTIES; HEAT-TREATMENT; SURFACE-AREA; JET COOKING; CHROMOPHORES; STABILITY;

D O I：

10.1515/npprj-2018-0062

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Microfibrillated cellulose (MFC) with and without added CMC was exposed to short-term dynamic thermal treatment using a steam jet cooker. The effects of the elevated temperature (130 degrees C, similar to 3 bar) and shear forces on the rheology, crystallinity index, UV/VIS adsorption and water retention were measured. Jet cooking increased the viscosity and gel strength of the MFC and MFC/CMC mixture but with CMC alone a slight decrease in viscosity was observed. The water retention capacity and crystalline indices of the MFC were not greatly affected by the short-term thermal treatment and shear forces, although a slight increase in the UV/VIS absorbance was observed.

引用

页码：10 / 18

页数：9

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