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Talk:Biocomposite

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Latest comment: 7 years ago by Spintendo in topic Some proposed changes

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[edit]

heineken

What? Pyrolized or not?

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I don't get it - how can a bunch of flax and resin compete with graphite, graphene, spectra, dynema, kevlar, etc? Am I missing something? Don't they pyrolyze it first? 2600:1700:4CA1:3C80:ED78:EA7D:6EE1:95DA (talk) 03:50, 29 June 2018 (UTC)Reply

Some proposed changes

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Information to be added or removed: Please add the below section to the end of the "Processing" section using this study as a reference.

Processing

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Biocomposites behave similarly to conventional plastics, making them viable alternatives for use in traditional manufacturing methods such as injection molding, extrusion or blow molding. As with processing any plastic, though, it’s important to consider the processing conditions required for biocomposites. General considerations when processing a biocomposite include pre-drying, melt temperature and shrink behavior.

Biocomposites readily absorb moisture from the environment, which is why drying in a desiccant dryer prior to processing is often recommended for these materials. Processing temperature for biocomposites should not exceed 400° Fahrenheit. Above that threshold, the cellulosic parts of the fillers and fibers risk burning, whereby the material can begin to discolor and degrade. In injection molding, increasing the size of runners and gates and decreasing injection speed can also help to alleviate the shear heat that can build up during the injection process. The natural fiber and fillers in a biocomposite also reduce the melt flow and shrink rate of the material. For example, polyethylene reinforced with wood fiber shrinks at a lower rate than pure polyethylene — and the higher the ratio of wood, the lower the melt flow and shrink rate of the composite.

Explanation of issue: This page gives a list of manufacturing methods biocomposites are suited for, but does not give a description of biocomposite-specific processing considerations.

References supporting change: https://www.ifbb-hannover.de/files/IfBB/downloads/EV_Processing-of-Bioplastics-2016.pdf

76wikibananas (talk) 20:25, 26 November 2018 (UTC)Reply

Reply 26-NOV-2018

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  Unable to review edit request  
Your edit request could not be reviewed because the request is not formatted correctly.

  1. The citation style predominantly used by the Biocomposite article appears to be Citation Style 1. The citation style used in the edit request consists of bare URL's.[a] Any requested edit of yours which may be implemented will need to resemble the current style already in use in the article – in this case, CS1. (See WP:CITEVAR.)
  2. Citation ref tags have not been placed within the requested text indicating which portions of the text the source is referencing. (See WP:INTEGRITY.)

In the collapsed section below titled Request edit examples, I have illustrated two: The first shows how the edit request was submitted; the second shows how requests should be submitted in the future.

Kindly rewrite your edit request so that it aligns more with the second example shown in the collapsed section above, and feel free to re-submit that edit request at your earliest convenience. If you have any questions about this formatting please don't hesitate to ask myself or another editor. Regards,  Spintendo  22:02, 26 November 2018 (UTC)Reply

Notes

  1. The use of bare URLs as references is a style which is acceptable for use in Wikipedia. However, general practice dictates that the style already in use for an article be the one that is subsequently used for all future additions unless changed by editorial consensus. (See WP:CITEVAR.)

Some proposed changes

[edit]

Information to be added or removed: Please add the below section to the end of the "Processing" section using this study as a reference.

Explanation of issue: This page gives a list of manufacturing methods biocomposites are suited for, but does not give a description of biocomposite-specific processing considerations.

Processing

[edit]

Biocomposites behave similarly to conventional plastics[1], making them viable alternatives for use in traditional manufacturing methods such as injection molding, extrusion or blow molding. As with processing any plastic, though, it’s important to consider the processing conditions required for biocomposites. General considerations when processing a biocomposite include pre-drying, melt temperature and shrink behavior[2].

Biocomposites readily absorb moisture from the environment, which is why drying in a desiccant dryer prior to processing is often recommended for these materials. Processing temperature for biocomposites should not exceed 400° Fahrenheit[3]. Above that threshold, the cellulosic parts of the fillers and fibers risk burning, whereby the material can begin to discolor and degrade. In injection molding, increasing the size of runners and gates and decreasing injection speed can also help to alleviate the shear heat that can build up during the injection process. The natural fiber and fillers in a biocomposite also reduce the melt flow and shrink rate of the material. For example, polyethylene reinforced with wood fiber shrinks at a lower rate than pure polyethylene — and the higher the ratio of wood, the lower the melt flow and shrink rate of the composite.

76wikibananas (talk) 16:34, 11 December 2018 (UTC)Reply

References

  1. Biocomposite plastics vs. traditional plastics (PDF) (Report). Green Dot Bioplastics.
  2. Processing of Bioplastics (PDF) (Report) (1st English edition ed.). Hanover University of Applied Sciences and Arts, IfBB – Institute for Bioplastics and Biocomposites. 2016. {{cite report}}: |edition= has extra text (help)
  3. "Processing considerations for wood-plastic composites". Green Dot Bioplastics.

Reply 11-DEC-2018

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  Edit request declined  

  1. The COI editor has not provided reliable, secondary sources which confirm the information requested to be added.
  2. The COI editor has not made the required disclosures regarding their particular conflict of interest.[a]

Regards,  Spintendo  17:33, 11 December 2018 (UTC)Reply

Notes

  1. By attaching a blank connected contributor template to the request, the COI editor has abrogated their responsibility to provide this information.