Influences of dispersion media for chemically modified cellulose nanofibers on rheological and mechanical properties of cellulose nanofiber reinforced high-density polyethylene

Cellulose ◽  
2021 ◽  
Author(s):  
Akihiro Sato ◽  
Tomoaki Yoshimura ◽  
Daisuke Kabusaki ◽  
Hiroaki Okumura ◽  
Yoko Homma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Density Polyethylene ◽  
Cellulose Nanofibers ◽  
High Density ◽  
Cellulose Nanofiber ◽  
Chemically Modified ◽  
Dispersion Media ◽  
Modified Cellulose

Mechanical properties of high density polyethylene reinforced with chemically modified coir fibers: Impact of chemical treatments

2012 ◽  
Vol 37 ◽  
pp. 379-383 ◽  
Author(s):  
F.Z. Arrakhiz ◽  
M. El Achaby ◽  
A.C. Kakou ◽  
S. Vaudreuil ◽  
K. Benmoussa ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Density Polyethylene ◽  
High Density ◽  
Chemical Treatments ◽  
Chemically Modified ◽  
Coir Fibers

scholarly journals Evaluation of the mechanical properties of chemically modified chicken feather fibres reinforced high density polyethylene composites

2018 ◽  
Vol 12 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Isiaka Oluwole Oladele ◽  
Avwerosuoghene Moses Okoro ◽  
Joseph Ajibade Omotoyinbo ◽  
Moshibudi Caroline Khoathane
Keyword(s):  
Mechanical Properties ◽  
High Density Polyethylene ◽  
High Density ◽  
Chicken Feather ◽  
Chemically Modified ◽  
Polyethylene Composites

Pre-Fibrillation of Pulps to Manufacture Cellulose Nanofiber Reinforced High-Density Polyethylene using the Dry-Pulp Direct Kneading Method

2021 ◽  
Author(s):  
Yuko Igarashi ◽  
Akihiro Sato ◽  
Hiroaki Okumura ◽  
Fumiaki Nakatsubo ◽  
Takashi Kuboki ◽  
...  
Keyword(s):  
High Density Polyethylene ◽  
Coefficient Of Thermal Expansion ◽  
Tensile Modulus ◽  
Cellulose Fibers ◽  
High Density ◽  
Cellulose Nanofiber ◽  
Feed Material ◽  
Alkenyl Succinic Anhydride ◽  
Melt Compounding ◽  
Kneading Method

Abstract The dry-pulp direct-kneading method is an industrially viable, low-energy process to manufacture cellulose nanofiber (CNF) reinforced polymer composites, where chemically modified pulps can be nanofibrillated and dispersed uniformly in the polymer matrix during melt-compounding. In this study, cellulose fibers with different sizes, ranging from surface-fibrillated pulps with 20 µm in width to fine CNFs with 20 nm in width were prepared from softwood bleached kraft pulps (NBKPs) using a refiner and high-pressure homogenizer (HPH). These cellulose fibers were modified with alkenyl succinic anhydride (ASA), and then dried. The dried ASA-treated cellulose fibers were used as a feed material for melt-compounding in the dry-pulp direct kneading method to fabricate CNF reinforced high-density polyethylene (HDPE). When surface-fibrillated pulps were employed as a feed material, the pulps were nanofibrillated and dispersed uniformly in the HDPE matrix during the melt-compounding, and the composites had much better properties (i.e., much higher tensile modulus and strength and much lower coefficient of thermal expansion) than the composites produced using the pulps without pre-fibrillation. However, when CNFs were used as a feed material, the CNFs were shortened and agglomerated during the melt-compounding, thus deteriorating the properties of the composites. The study concludes that the pre-fibrillation of pulps had a significant impact on the morphology and properties of the composites. Unexpectedly, the surface-fibrillated pulp, which can be produced cost-effectively using a refiner at an industry scale, was a more suitable form than the CNF as a feed material for melt-compounding in the dry-pulp direct kneading method.

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