Preparation and Properties of Cellulose/Poly(vinyl alcohol) Blend Films Based on Dissolution in a Non-Toxic Solvent System

Zhang, Ruping; Yang, Quanling; Hu, Qi; Zhou, Jinping; Zhang, Lina

doi:10.1166/jbmb.2009.1019

Cited by 4 publications

(3 citation statements)

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“…NaOH hydrate and urea hydrate in the solvent act as new hydrogen bonding ligands. Furthermore, after the two components are sufficiently stirred, a more intense ethanol precipitant is selected similarly to the use of the coagulation bath in the preparation of the regenerated cellulose films. , The addition of a large amount of ethanol causes the two components to simultaneously flocculate, thereby obtaining a strong intermolecular action of molecular chain entanglements and hydrogen bonds. In addition, RC-SP also acts as a heterogeneous nucleation site, increasing the crystallinity of the composite.…”

Section: Resultsmentioning

confidence: 99%

“…Renewable natural polymers derived from sustainable non-petroleum-based resources have received wide attention as matrix materials or fillers. − Cellulose, as an abundant biopolymer on earth, has been widely used in materials science and other fields. ,, In fact, cellulose and PVA are very suitable for the preparation of composites due to their similarities such as high polarity and degradability. Poly(vinyl alcohol) has been used as a reinforcing material to prepare cellulose-based films − and gel materials. Similarly, cellulose materials such as cellulose nanocrystals and cellulose fibers , also have been used to modify PVA composites.…”

Section: Introductionmentioning

confidence: 99%

“…Through the dissolution–regeneration process, the adjustment of the aggregation structure for cellulose molecular chains is achieved on the basis of retaining the chemical structure. Regenerated cellulose-based materials with improved properties have been reported, and regenerated cellulose (RC) has been proven to be a potential green reinforcement with excellent properties. Furthermore, our previous research ,, has shown that using natural rubber as matrix and regenerated cellulose as filler, a simple co-precipitation process can be used to effectively construct a honeycomb structure that is advantageous for performance improvement.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mechanically Strong, Heat-Resistant, Water-Induced Shape Memory Poly(vinyl alcohol)/Regenerated Cellulose Biocomposites via a Facile Co-precipitation Method

Huang

Liu

et al. 2019

Biomacromolecules

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In this work, poly(vinyl alcohol) (PVA) biocomposites with regenerated cellulose-softwood pulp (RC-SP) as a green reinforcement were prepared via coprecipitation method. Simultaneous precipitation of the two components promotes uniform dispersion of the RC-SP and constructs strong molecular chain entanglements and hydrogen bonding network inside the composites. This physical cross-linking network reduces the water absorption and improves the water resistance of the composites. The incorporation of RC-SP not only improves the thermal decomposition properties of the composites, but also enhances the mechanical properties and dynamic mechanical properties, attributed to the strong interaction between the filler and the matrix. Moreover, the fabricated PVA/RC-SP composites exhibit good water-induced shape memory effect, and shape recovery rate of 10% RC-SP reinforced composite reaches 95.3% after immersing for 35 min. This work provides useful information for the implementation of co-precipitation method and the application of renewable cellulose resources.

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Section: Resultsmentioning

confidence: 99%