Chapter 7. Synthesis and Characterization of Thermoplastic Agro-polymers

Verbeek, Casparus Johannes Reinhard; Bier, James Michael

doi:10.1039/9781849733458-00197

Cited by 14 publications

(20 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An examination of the data in Table 2 indicates that most of the biodegradable plastics exhibit properties generally similar to synthetic plastics. For example, the modulus of polylactic acid (PLA) has been reported to be 2.8 GPa by Verbeek and Bier and 5.3 GPa in the present investigation [4] . This compares well with the elastic modulus (E) of polystyrene, from the clamshell, which was calculated to be 0.9 GPa.…”

Section: Results and Discussion As Received Propertiesmentioning

confidence: 77%

“…In general, most synthetic thermoplastics are stronger than biodegradable plastics, while some biopolymers may have similar properties [4] . For example, polyhydroxybutyrate, (PHB), has strength properties similar to polypropylene although its elongation at break (∼6%) may be lower than that of polypropylene [2] .…”

Section: Introductionmentioning

confidence: 99%

“…Several biodegradable polymers may be quite brittle. A generous addition of plasticizers can be used to minimize the effects of brittle behavior [4] . The degradation period for synthetic plastics may take up to 450 years in a landfill, whereas some biodegradable polymers (eg.…”

Section: Introductionmentioning

confidence: 99%

“…Agro-polymers, typically starch and bagasse, are being examined for their sustainable nature due to vast agricultural resources available for use [4] . The resources used in the production of renewable biopolymers are continually replenished, thus offering a significant advantage over synthetic plastics [2] .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Environmental Effects on the Properties of Biopolymer Service-ware Products

Buffum

Pacheco

Shivkumar

2014

Polymer-Plastics Technology and Engineering

View full text Add to dashboard Cite

The current trend towards sustainability has promoted a new interest in biodegradable plastics. Although there have been many studies on the behavior of biodegradable plastics, the changes in properties that may occur during use have not been fully documented. The mechanical properties of seven commercial service-ware items produced with biodegradable plastics were analyzed in this investigation. The effects of UV exposure, humidity, and accelerated aging on the mechanical properties were studied. In general, samples from polylactic acid and wheat straw had properties comparable to traditional synthetic plastics used in this application. However, the strength of other polymers such as bagasse, fiber pulp and potato starch was less than that of comparable synthetic plastics. The mechanical properties of the biopolymers generally deteriorated significantly upon exposure to UV radiation and humidity, with polylactic acid, wheatstraw, potato starch, and the bamboo bulrush wheatstraw blend being affected the most. Accelerated aging data indicate that after 6 months under ambient conditions, the potato starch, wheatstraw, and bamboo bulrush wheatstraw blend have a significant reduction in strength and modulus. In general, the thermal analysis behavior of most of the plastics was similar indicating a major weight loss of about 69-97% over a temperature range of 250-400 C. Additional improvements may be necessary to increase the environmental resistance of these biopolymers so that they can be effective replacements for traditional plastics.

show abstract

Section: Results and Discussion As Received Propertiesmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Environmental Effects on the Properties of Biopolymer Service-ware Products

Buffum

Pacheco

Shivkumar

2014

Polymer-Plastics Technology and Engineering

View full text Add to dashboard Cite

show abstract

“…2,3 Proteins are much more complex than synthetic homopolymers as they are effectively heteropolymers of multiple different amino acids. 3,4 This results in a wide range of intermolecular interactions that reduce molecular mobility and increase the glass transition (T g ) to around their degradation temperature. 5 Plasticisers such as water or other low molecular weight compounds are necessary to lower T g for processing to prevent excessive degradation.…”

mentioning

confidence: 99%

Short‐Term Viscoelastic Properties of Bloodmeal‐Based Thermoplastics

et al. 2014

View full text Add to dashboard Cite

ABSTRACT:The effects of sodium sulfite (SS) content and injection molding temperature on the viscoelasticity of bloodmeal-based thermoplastics were assessed using creep, recovery, and stress relaxation. Both SS and processing temperature affected standard mechanical properties and time-dependent behavior. Increased SS content led to greater creep, greater strain at break, and reduced modulus and mechanical strength of the material. Furthermore, the use of a higher injection molding temperature also reduced modulus and strength. Higher molding temperature also caused an increase in the fraction of creep recovered in 20 min. These results confirmed that increased SS increased chain mobility and that injection molding at 140• C instead of 120• C did not cause excessive thermal cross-linking. C

show abstract

Simultaneous plasticization and blending of isolate soy protein with poly[(butylene succinate)‐co‐adipate] by one‐step extrusion process

Renoux

Jagadeesh

Douchain

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

This article focuses on the preparation of isolated soy protein plasticized by a glycerol and water mixture/poly[(butylene succinate)‐co‐adipate] blends by an original single step extrusion process. Prepared blends were injection‐molded and characterized for their molecular interaction, morphology, rheological, thermal, dynamic mechanical, and mechanical properties. The comparison of these results with those obtained using a more regular two‐step compounding process validates the technical efficiency of this cost‐effective one‐step approach. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46442.

show abstract

Chapter 7. Synthesis and Characterization of Thermoplastic Agro-polymers

Cited by 14 publications

References 0 publications

Environmental Effects on the Properties of Biopolymer Service-ware Products

Environmental Effects on the Properties of Biopolymer Service-ware Products

Short‐Term Viscoelastic Properties of Bloodmeal‐Based Thermoplastics

Simultaneous plasticization and blending of isolate soy protein with poly[(butylene succinate)‐co‐adipate] by one‐step extrusion process

Contact Info

Product

Resources

About