A comparative study of the thermal behavior of PVC, a series of synthesized chlorinated polyethylenes and HDPE

Varma, A.J.; Deshpande, Sonal; Kondapalli, P

doi:10.1016/s0141-3910(98)00051-2

Cited by 16 publications

(4 citation statements)

References 7 publications

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“…Polyvinyl chloride (PVC) is the 3rd largest produced plastic worldwide due to its extensive domestic and commercial applications. The highly strong and flexible nature of PVC has created its huge application in making products of packaging materials, toys, furniture, plumbing, flooring and building materials . The persistent nature of PVC makes it challenging to deal with when released into the environment.…”

Section: Introductionmentioning

confidence: 99%

Isolation and molecular characterization of polyvinyl chloride (PVC) plastic degrading fungal isolates

Ali

Ahmed

Robson

et al. 2013

J. Basic Microbiol.

147

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The recalcitrant nature of polyvinyl chloride creates serious environmental concerns during manufacturing and waste disposal. The present study was aimed to isolate and screen different soil fungi having potential to biodegrade PVC films. After 10 months of soil burial experiment, it was observed that a number of fungal strains were flourishing on PVC films. On morphological as well as on 18rRNA gene sequence and phylogenetic basis they were identified as Phanerochaete chrysosporium PV1, Lentinus tigrinus PV2, Aspergillus niger PV3, and Aspergillus sydowii PV4. The biodegradation ability of these fungal isolates was further checked in shake flask experiments by taking thin films of PVC (C source) in mineral salt medium. A significant change in color and surface deterioration of PVC films was confirmed through visual observation and Scanning electron microscopy. During shake flask experiments, P. chrysosporium PV1 produced maximum biomass of about 2.57 mg ml(-1) followed by A. niger PV3. P. chrysosporium PV1 showed significant reduction (178,292 Da(-1)) in Molecular weight of the PVC film than control (200,000 Da(-1)) by gel permeation chromatography. Furthermore more Fourier transform infrared spectroscopy and nuclear magnetic resonance also revealed structural changes in the PVC. It was concluded that isolated fungal strains have significant potential for biodegradation of PVC plastics.

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Section: Introductionmentioning

confidence: 99%

Isolation and molecular characterization of polyvinyl chloride (PVC) plastic degrading fungal isolates

Ali

Ahmed

Robson

et al. 2013

J. Basic Microbiol.

147

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“…An interesting property of PCL (a good example of an aliphatic polyester) is its ability to form compatible blends with a wide range of other polymers (Darwis et al, 1999). Polyvinyl chloride (PVC) is one of the most important commodity plastics in use nowadays (Varma et al, 1999). It is often used as food packaging, toys, pipes, floor, window frames, etc (Anon, 1997).…”

Section: Introductionmentioning

confidence: 99%

Biotreatment effects in films and blends of PVC/PCL previously treated with heat

Campos

Franchetti

2005

Braz. arch. biol. technol.

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“…At this stage, the small amounts of hydrocarbons such as benzene, naphthalene, and others are liberated with the HCl [19]. As suggested by other researchers, the weight loss of 36% of CPE can also be attributed to the total loss of chlorine [20].…”

Section: Thermal Degradation Of Neat Componentsmentioning

confidence: 81%

Comparative study of the effects of chlorinated polyethylene and acrylic impact modifier on the thermal degradation of poly(vinyl chloride) compounds and poly(vinyl chloride)/(oil palm empty fruit bunch) composites

Bakar

Hassan

Yusof

2010

Vinyl Additive Technology

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The effects of chlorinated polyethylene (CPE) and acrylic impact modifier (AIM) on the thermal degradation of poly(vinyl chloride) (PVC) compounds and composites were investigated. The amounts of AIM and CPE used were fixed at 9 parts per hundred parts of resin (phr), while oil palm empty fruit bunch (OPEFB) fiber content was increased from 0 to 40 phr. To produce composites, the PVC formulations were dryblended by using a laboratory blender before being milled into sheets on a two-roll mill at 1658C. The milled sheets were then hot-pressed at 1808C. The thermal degradation of the specimens was evaluated by using thermogravimetry in a nitrogen environment. Thermal stability of the PVC/CPE compounds and PVC/ CPE/OPEFB composites was improved by the addition of CPE. The CPE retarded the dehydrochlorination of PVC. However, the stabilization effect was reduced by the incorporation of OPEFB at levels of 30 and 40 phr. The presence of AIM accelerated the dehydrochlorination of PVC/AIM compounds and PVC/AIM/OPEFB composites.

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A comparative study of the thermal behavior of PVC, a series of synthesized chlorinated polyethylenes and HDPE

Cited by 16 publications

References 7 publications

Isolation and molecular characterization of polyvinyl chloride (PVC) plastic degrading fungal isolates

Isolation and molecular characterization of polyvinyl chloride (PVC) plastic degrading fungal isolates

Biotreatment effects in films and blends of PVC/PCL previously treated with heat

Comparative study of the effects of chlorinated polyethylene and acrylic impact modifier on the thermal degradation of poly(vinyl chloride) compounds and poly(vinyl chloride)/(oil palm empty fruit bunch) composites

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