Comparison of Effects of Sodium Chloride and Potassium Chloride on Spray Drying and Redispersion of Cellulose Nanofibrils Suspension

Yang, Guihua; Ma, Guangrui; He, Ming; Ji, Xingxiang; Li, Weidong; Youn, Hye Jung; Lee, Hak Lae; Chen, Jiachuan

doi:10.3390/nano11020439

Cited by 21 publications

(5 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nonetheless, this comparison is important to place the present work into context. In other studies, using CNF materials produced via mechanical action, spray drying results in compact particles like those seen in our unmodified CNF controls. − SSA values for these materials are not reported, but they have equivalent or larger average particle sizes so they can be assumed to have similar SSAs to the unmodified CNFs in this study. Interesting observations arise when comparing these results to freeze-dried “cryogels” and analogous “aerogels” made using techniques that attempt to preserve native morphology through slower removal of water and/or lower surface tension solvents.…”

Section: Resultsmentioning

confidence: 65%

Polymer-Grafted Cellulose Nanofibrils with Enhanced Interfacial Compatibility for Stronger Poly(lactic acid) Composites

Kelly

Es‐haghi

Lamm

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Cellulose nanofibrils (CNFs) are a promising reinforcement for biodegradable composite matrices such as poly(lactic acid) (PLA), but they require commercially scalable drying methods that preserve their fibrillar morphology along with improved interfacial interactions with polymer matrices. In this work, a water-based grafting-through polymerization scheme to modify CNFs improved spray drying behavior and reinforcement capacity in PLA composites. All polymer modifications yielded CNFs with a more fibrillar morphology after spray drying, increasing specific surface area by up to 490% compared to unmodified CNFs, values similar to conventional freeze drying. Polymer-grafted CNFs in PLA composites improved the tensile strength by 16% at 20 wt % loading and stiffness by 22% at a 10 wt % loading with two different graft-polymer chemistries compared to unmodified CNF composites. Surface energy heterogeneity measurements of the reinforcements and PLA matrix were employed to understand the improvements in composite properties. Polymer modifications lowered the total surface energy of the CNFs, and calculated ratios of work of adhesion to work of cohesion suggested improved interfacial compatibility for four of the modified CNFs with PLA. Rheological oscillatory shear studies of the composites correlated solid-like melt behavior, as demonstrated by storage moduli dominance, with higher tensile strength. Thermal analysis of the composites revealed that excessive plasticization by the poly(oligoethylene glycol methyl ether methacrylate)-grafted sample potentially offset mechanical property improvements imparted by the more fibrillar morphology. This work provides an opportunity for large-scale manufacturing of CNF/PLA composites via an entirely aqueous modification scheme and industrially relevant spray drying process.

show abstract

Section: Resultsmentioning

confidence: 65%

Polymer-Grafted Cellulose Nanofibrils with Enhanced Interfacial Compatibility for Stronger Poly(lactic acid) Composites

Kelly

Es‐haghi

Lamm

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

show abstract

“…It holds the group. This structure of cellulose has chirality, biodegradation, and high functionality, and it is one of the most important factors in having characteristics such as hydrophilia [59,60].…”

Section: Biopolymersmentioning

confidence: 99%

Review of the Green Composite: Importance of Biopolymers, Uses and Challenges

Mohammed Zorah,

Mustafa Mudhafar,

Alhussein Arkan Majhool

et al. 2023

ARFMTS

View full text Add to dashboard Cite

Polymers can be utilized for a wide variety of applications since they are lightweight and inexpensive, and their mechanical qualities are usually more than enough. Polymers often undergo a petrochemical production process and have a relatively lengthy elimination time. Green chemistry and green production are crucial in today's technology, which relies increasingly on non-toxic polymers made from natural ingredients. Biopolymers are a type of organic polymer that can break down naturally and pose no threat to human health or the environment. Here, we will take a quick look at the polymer structures that go into making eco-friendly composites in the future. Important polymer types and engineering studies for material manufacturing have been uncovered as a means of avoiding green production's negative effects on the environment. Possible future use of biopolymers as binders in composite materials and their effects on the environment.

show abstract

“…The solid phases were diluted to 1 wt% and mechanically treated by a supermasscolloider (MKCA6-5J, Masuko Sangyo Co., Ltd., Japan). The obtained slurry at 0.5 wt% was further treated with an M-110EH-30 micro uidizer (Micro uidics, Newton, MA, USA) [31]. NFC was obtained after 25 passes through the micro uidizer at the slit pressure of 5000 psi.…”

Section: Preparation Of Nfcmentioning

confidence: 99%

Nanofibrillated cellulose-based superhydrophobic coating with antimicrobial performance

Wang

et al. 2022

Adv Compos Hybrid Mater

Self Cite

View full text Add to dashboard Cite

Superhydrophobic coatings have been widely developed to endue the materials with antibacterial, selfcleaning, antiseptic, and some other multi-functionalities. Fluorochemicals are the most commonly used superhydrophobic coatings, however, the released toxic substances from uorinated polymers are a signi cant source of water pollution and even a threat to human health. With the increasingly great attention to the environment, it is imperative to exploit green and effective hydrophobic coatings. Here, a nano brillated lignocellulose-based multifunctional superhydrophobic coating (NMSC) was fabricated by using an e cient silylation process from cellulose, tetraethyl orthosilicate, and cetyl trimethoxysilane. Microscopic, chemical structural, and thermal properties analyses revealed that the NMSC has nano roughness, low surface energy, and good thermal stability. More importantly, the NMSC displayed an unprecedented hydrophobic and self-cleaning performance (water contact angle ~ 165°). The NMSC superhydrophobic coating can realize long-term effective barriers to many uids, including strong acid (pH = 1), strong alkali (pH = 13), alcohols, alkanes, esters, and some other organic solvents. Moreover, the NMSC also showed good antibacterial properties with E. coli and S. aureus. This work not only improved the high-value application of lignocellulose but also provides a good pathway for the development of ecological and sustainable multi-functional coatings.

show abstract

Comparison of Effects of Sodium Chloride and Potassium Chloride on Spray Drying and Redispersion of Cellulose Nanofibrils Suspension

Cited by 21 publications

References 38 publications

Polymer-Grafted Cellulose Nanofibrils with Enhanced Interfacial Compatibility for Stronger Poly(lactic acid) Composites

Polymer-Grafted Cellulose Nanofibrils with Enhanced Interfacial Compatibility for Stronger Poly(lactic acid) Composites

Review of the Green Composite: Importance of Biopolymers, Uses and Challenges

Nanofibrillated cellulose-based superhydrophobic coating with antimicrobial performance

Contact Info

Product

Resources

About