Poly(vinyl alcohol) stabilisation in thermoplastic processing

Alexy, Pavol; Káchová, Darina; Kršiak, Miroslav; Bakoš, Dušan; Šimková, Barbora

doi:10.1016/s0141-3910(02)00177-5

Cited by 122 publications

(88 citation statements)

References 2 publications

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“…The peak at 1738 cm 21 is corresponding to the carbonyl of vinyl acetate groups in partially hydrolyzed BC-05. 6,14 Figure 1(c) is the FTIR spectrum of PPVA film. The peaks are similar to pure PVA film, but the absorption band at 1743 cm 21 becomes wider and the peak at 1570 cm 21 is stronger.…”

Section: Ftir Analysismentioning

confidence: 99%

“…This can be interpreted that the plasma reaction is concentrated in carbonyl groups. 6 As the spectra of PPVA film reacted with glycerol [see. Fig.…”

Section: Ftir Analysismentioning

confidence: 99%

“…Therefore, the development of novel plastics that can be degraded by microorganisms in soil/compost has been endeavored recently. The current research about biodegradable materials has been focused on four directions: namely, synthetic polymer/starch blends such as PE/starch, [1][2][3][4][5] degradable polymers such as PVA, PCL, and PLA, [6][7][8][9][10] degradable polymer/starch blends e.g., PCL/starch, PLA/starch and PVA/ starch [11][12][13][14][15][16] and pure starch-based materials. [17][18][19][20] It seems that the latter two directions are more feasible because of the biodegradability and cheapness of starch.…”

Section: Introductionmentioning

confidence: 99%

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Plasma treatment for enhancing mechanical and thermal properties of biodegradable PVA/starch blends

Yang

Huang

2008

J of Applied Polymer Sci

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Two series of biodegradaable polyvinyl alcohol (PVA)/starch blends, i.e., PVA with/without plasma treatment (PP/P series), were produced by single-screw extruder. The influences of plasma pretreatment and PVA content on the tensile properties, thermal behaviors, melt flow index, and biodegradability of blends were investigated. PVA pretreated by plasma (PPVA) reacted with glycerol was found not only to mechanically strengthen the PPVA/ starch blend but also to improve the compatibility of PPVA and starch. Compared with PVA/starch blends, the melt flow indices of PPVA/starch blends were improved significantly by 200-300% and their tensile strength also increased two-to-three-fold. Thermogravimetry analysis (TGA) showed that the thermal stability of PPVA/starch (85/300g) blend was better than PVA/starch blend at processing temperature and outperformed than PVA and starch at high temperature. Both the PPVA/starch and PVA/starch blends finished biodegradation within 9-10 weeks in soil burial tests. The esterification reaction of PPVA and glycerol was characterized by FTIR spectroscopic measurement and TGA test. The morphologic evolutions of the blend during biodegradation were investigated carefully by scanning electron microscope (SEM) imaging.

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Section: Ftir Analysismentioning

confidence: 99%

“…This can be interpreted that the plasma reaction is concentrated in carbonyl groups. 6 As the spectra of PPVA film reacted with glycerol [see. Fig.…”

Section: Ftir Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Plasma treatment for enhancing mechanical and thermal properties of biodegradable PVA/starch blends

Yang

Huang

2008

J of Applied Polymer Sci

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“…The second stage of decomposition ranged between 210-406°C with a weight loss of 20-36% corresponding to the elimination of water molecules from PVF chains [44] and acetic acid from acetate groups. In the third stages of decomposition, the breakdown of the polymer backbone takes place in the range of 389-530°C with a weight loss of 21-29%.…”

Section: Thermal Propertiesmentioning

confidence: 99%

Investigation on the thermal properties of new thermo-reversible networks based on poly(vinyl furfural) and multifunctional maleimide compounds

Găină¹,

Ursache²,

Gaina³

et al. 2012

Express Polym. Lett.

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Abstract. New thermo-reversible networks were obtained from poly(vinyl furfural) and multifunctional maleimide monomers by Diels-Alder (DA) and retro-DA reactions. The poly(vinyl furfural) having acetalization degree of 15 and 25% were obtained by the acid-catalyzed homogenous acetalization of poly(vinyl alcohol) with 2-furfural in a nonaqueous media. The thermal and viscoelastic behaviour of the cross-linked materials have been studied via differential scanning calorimetry, dynamic mechanical analysis and thermogravimetric analysis. The networks exhibit considerable swelling in those organic solvents that dissolve both poly(vinyl furfural) and bismaleimides; by heating in aprotic dipolar solvents at 150°C, they become soluble.

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“…It has been a well-known fact that poly(vinyl alcohol) is water soluble, biodegradable, has greater mechanical strength and is compatible with starch [13], additionally due to the above mentioned attributes it has wide application in packaging [14]. Shin et al [15] reported that PVA provides exceptional property of gas barrier in dry state, as PVA is water soluble; it also tends to lose gas barrier properties under humid atmosphere.…”

mentioning

confidence: 99%

Mechanical and Structural Characterization of Eco-Friendly Films Prepared Using Poly(vinyl alcohol), Cellulose Nanocrystals and Chitosan Nanoparticle Blend

Dey¹,

Selvam²,

Kumar³

et al. 2017

Asian J. Chem.

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Poly(vinyl alcohol) stabilisation in thermoplastic processing

Cited by 122 publications

References 2 publications

Plasma treatment for enhancing mechanical and thermal properties of biodegradable PVA/starch blends

Plasma treatment for enhancing mechanical and thermal properties of biodegradable PVA/starch blends

Investigation on the thermal properties of new thermo-reversible networks based on poly(vinyl furfural) and multifunctional maleimide compounds

Mechanical and Structural Characterization of Eco-Friendly Films Prepared Using Poly(vinyl alcohol), Cellulose Nanocrystals and Chitosan Nanoparticle Blend

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