Sökning: "karboximetylcellulosa"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet karboximetylcellulosa.

1. 1. Biobased and biodegradable binders for paper and nonwoven

   Författare :Maria Wennman; Mikael S. Hedenqvist; Anna Justina Svagan; Mårten Hellberg; Wim Thielemans; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Polyelectrolyte complex; binder; chitosan; carboxymethyl cellulose; citric acid; nonwoven; tensile strength; hydrophobicity; Polyelektrolytkomplex; bindemedel; kitosan; karboximetylcellulosa; citronsyra; nonwoven; dragstyrka; hydrofobicitet; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : Nonwovens are textile-like materials with similarities close to paper. One significant sector where nonwovens are used is for single-use products such as wet wipes and hygiene products. With an increasing global population, the manufacturing and use of nonwovens have grown significantly. LÄS MER

3. 2. Bio-based barriers from wood hydrolysates : A pilot-scale approach

   Författare :Soheil Saadatmand; Ulrica Edlund; Youssef Habibi; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood hydrolysate; biorefinery; oxygen permeability; multilayer barriers; food packaging.; vedhydrolysat; syrgaspermeabilitet; barriärskikt; livsmedelsförpackning;

   Sammanfattning : Wood hydrolysates (WHs) are liquids extracted from the hydrothermal treatment of wood. They exist as the byproduct of forestry industries such as the dissolving pulp and fiberboard industries. WHs are hemicellulose-based with a large share of lignin in the chemical composition. LÄS MER

4. 3. Colloidal interactions and arrested dynamics of cellulose nanofibrils

   Författare :Malin Nordenström; Lars Wågberg; Torbjörn Pettersson; Lars Göran Ödberg; Andreas Fall; Wim Thielemans; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cellulose nanofibrils; colloidal interactions; colloidal stability; arrested state; colloidal glass; colloidal gel; tracer diffusion; counterion; steric stabilization; redispersion; redispersion agent; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : Over the past decades, concerns for the environment have increased and efforts to achieve a sustainable society have intensified. One particular challenge is to replace fossil-based plastics with biodegradable materials produced from renewable resources. LÄS MER

5. 4. Wood Hydrolysate for Renewable Products

   Författare :Yingzhi Zhu Ryberg; Ulrica Edlund; Ann-Christine Albertsson; Ann Cornell; Louise Staffas; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; wood hydrolysate; hemicellulose; oxygen permeability; PALS; film; coating; CMC; chitosan; HSP; Polymer chemistry; Polymerkemi;

   Sammanfattning : Renewable biomass has been used by mankind for a long time for different purposes, from simply food to industrial products. Among a large family of polysaccharides, hemicellulose is non-edible but has shown a potential in many industrial fields such as medicine, agriculture and packaging. LÄS MER

7. 5. New Mass Spectrometric Methods for Structure Analysis of Carboxymethyl Cellulose

   Författare :Jonas Enebro; Sigbritt Karlsson; Dane Momcilovic; Ulf Germgård; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; carboxymethyl cellulose; substituent distribution; rheology; enzyme hydrolysis; cellulase; permethylation; liquid chromatography; MALDI; ESI; mass spectrometry; Polymer chemistry; Polymerkemi;

   Sammanfattning : Carboxymethyl cellulose (CMC) is a cellulose derivative, made from cellulose by introduction of carboxymethyl groups along the molecules. The properties of CMC are affected by several parameters where the molar mass and molar mass distribution, degree of substitution (DS) and the distribution pattern along, and between, the cellulose molecules are the most prominent. LÄS MER