Preparation and properties of poly(vinyl alcohol) films using carbohydrates as plasticizers

Dai, Hai Tao; Wang, Juan; Liu, Naren

doi:10.1002/vnl.21679

Cited by 14 publications

(9 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, the absorption peak of &bond;OH in the FTIR spectrum of the PVA/PEG–glycerol hydrogel was shifted from 3423 to 3419 cm −1 compared to PVA/PEG. This is because the &bond;OH functional group is very sensitive to hydrogen bonding, and glycerol addition makes a powerful hydrogen bond between glycerol and PVA, which weakens the hydrogen bond between PVA and PEG 43 …”

Section: Resultsmentioning

confidence: 99%

“…This is because the &bond;OH functional group is very sensitive to hydrogen bonding, and glycerol addition makes a powerful hydrogen bond between glycerol and PVA, which weakens the hydrogen bond between PVA and PEG. 43 Mechanical properties and hydrophilicity of PVA/PEGglycerol hydrogels with various glycerol contents Mechanical properties are a prerequisite to ensure joint function, and plasticizers have a major part in the mechanical properties of polymers. The tensile stress-strain curves of the PVA/PEG composite gel with various glycerol contents are shown in Fig.…”

Section: Xps Xrd Ftir and Raman Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Glycerol‐modified poly(vinyl alcohol)/poly(ethylene glycol) self‐healing hydrogel for artificial cartilage

Chai

et al. 2022

Polymer International

View full text Add to dashboard Cite

Poly(vinyl alcohol) (PVA) hydrogels have shown potential applications in bionic articular cartilage due to their tissue‐like viscoelasticity, good biocompatibility and low friction. However, their lack of adequate mechanical properties is a key obstacle for PVA hydrogels to replace natural cartilage. In this study, poly(ethylene glycol) (PEG) and glycerol were introduced into PVA, and a PVA/PEG–glycerol composite hydrogel was synthesized using a mixing physical crosslinking method. The mechanical properties, hydrophilicity and tribological behavior of the PVA/PEG–glycerol hydrogel were investigated by changing the concentration of glycerol in PEG. The results showed that the tensile strength of the hydrogel reached 26.6 MPa at 270% elongation at break with 20 wt% of glycerol plasticizer, which satisfied the demand of natural cartilage. In addition, the excellent hydrophilicity of glycerol provides good lubricating properties for the composite gel under dry friction. Meanwhile, self‐healing and cellular immunity assays demonstrated that the composite gel could have good self‐healing ability and excellent biocompatibility even in the absence of external stimuli. This study provides a new candidate material for the design of articular cartilage, which has the potential to facilitate advances in artificial joint cartilage repair. © 2022 Society of Industrial Chemistry.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Xps Xrd Ftir and Raman Analysesmentioning

confidence: 99%

Glycerol‐modified poly(vinyl alcohol)/poly(ethylene glycol) self‐healing hydrogel for artificial cartilage

Chai

et al. 2022

Polymer International

View full text Add to dashboard Cite

show abstract

“…There are many hydroxyl groups in the PVA chain, leading to the formation of hydrogen bonds between molecules and within molecules, which affects the motion of the molecular chain and further affects the crystallization of PVA [22]. On the other hand, due to its multi-hydroxyl and strong hydrogen bonds, the melting temperature is higher than its decomposition temperature, that is, PVA decomposes before melting, and the thermoplastic processing window is narrow [23].…”

Section: Introductionmentioning

confidence: 99%

Crystallization behavior of polyvinyl alcohol with inorganic nucleating agent talc and regulation mechanism analysis

et al. 2022

View full text Add to dashboard Cite

Polyvinyl alcohol (PVA) decompose before melting, making it di cult for melt processing. This phenomenon limits the applications of PVA. Therefore, to widen the application of PVA, in the present work, the PVA lms have been prepared by the ow casting method. And talc added as an inorganic nucleating agent to improve the crystallinity of PVA. The effects of talc on the crystallization behavior of PVA are tested by differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and successive self-nucleation annealing (SSA). The crystallization kinetics behavior of talc was is further studied by Mo Zhishen equation and Avrami equation. The results show that the addition of talc to the PVA lm promotes its crystallization, and as the content of the nucleating agent increases, the crystallinity tends to increase, and the thickness of the wafer becomes uniform due to the increase of nucleation points. These results show that talc regulates the crystallization of PVA, improves the crystallinity and crystallization rate of PVA, and has a heterogeneous nucleation effect. PVA itself exhibits hydrophilicity because it contains large number of hydroxyl groups, and has good physical and chemical properties. In addition, the mechanical properties and water resistance have been further improved by improving the crystallinity of PVA, and the practicability of PVA lm in actual production was improved.

show abstract

“…[ 3 ] However, pure PVA films have some disadvantages such as brittleness, low fracture elongation, poor water resistance, and processability, which limited its wide application. [ 4‐6 ]…”

Section: Introductionmentioning

confidence: 99%

Changes in Crystallization Behaviors of Poly(Vinyl Alcohol) Induced by Water Content

Xiang

Zhou

2020

Vinyl Additive Technology

View full text Add to dashboard Cite

Water as the low‐cost, environmentally friendly, easily obtained plasticizer was used widely in the preparation of poly(vinyl alcohol) (PVA) products. However, few researches were done to investigate the effect of water content on the crystallization behaviors of PVA. The water content in various PVA films was controlled by drying in a vacuum oven at different time and was determined by thermogravimetric analysis. The changes in crystallization behaviors of PVA affected by water content were investigated using differential scanning calorimeter, Fourier transform infrared spectra, and X‐ray diffraction. The wafer thickness and nonisothermal crystallization kinetics of various PVA films were also studied. The corresponding results showed that the crystallinity of various PVA films increased and then stabilized as the drying time increased. The distribution of wafer thickness in PVA films became narrow, and their wafer thickness value became small. The decrease of water content in PVA films promoted the crystallization rate, because the movement ability of PVA molecular chains was enhanced by the decrement in hydration hydrogen bonds in various PVA films.

show abstract

Preparation and properties of poly(vinyl alcohol) films using carbohydrates as plasticizers

Cited by 14 publications

References 30 publications

Glycerol‐modified poly(vinyl alcohol)/poly(ethylene glycol) self‐healing hydrogel for artificial cartilage

Glycerol‐modified poly(vinyl alcohol)/poly(ethylene glycol) self‐healing hydrogel for artificial cartilage

Crystallization behavior of polyvinyl alcohol with inorganic nucleating agent talc and regulation mechanism analysis

Changes in Crystallization Behaviors of Poly(Vinyl Alcohol) Induced by Water Content

Contact Info

Product

Resources

About