1 / 10

Report, Materials Working Group

Report, Materials Working Group. Douglas G. Hayes Materials Working Group Leader Dept Biosystems Eng & Soil Sci Univ Tennessee dhayes1@utk.edu. Materials WG Membership. Univ Tennessee Doug Hayes, Professor, Biosystems Eng & Soil Sci

ernie
Download Presentation

Report, Materials Working Group

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Report, Materials Working Group Douglas G. Hayes Materials Working Group Leader DeptBiosystemsEng & Soil Sci Univ Tennessee dhayes1@utk.edu SCRI Annual Meeting, Lubbock, TX 6/1/11

  2. Materials WG Membership • Univ Tennessee • Doug Hayes, Professor, BiosystemsEng & Soil Sci • Larry Wadsworth, Professor Emeritus, Material SciEng • SathishDharmalingam, PhD Student, BiosystemsEng • Tyler Pannell, Undergraduate Research Assistant, BiosystemsEng • Galina Melnichenko, Research Associate • Washington State University • Karen Leonas, Professor, Apparel, Merchandising, Design & Textiles • Hang Liu, Postdoctoral Research Associate • Jeremy Cowan, PhD Student • Several undergraduate research associates SCRI Annual Meeting, Lubbock, TX 6/1/11

  3. Activity I Summary • (Conduct performance assessments ..selected core BDMs) • I-A: Preparing Spunbond PLA mulches for Year 1 study (Larry) √ • I-B: Physical / Mechanical Strength testing of BDMs (Times 0 & 1; phys @ WSU; MW @ UTK): Statistical analysis is being conducted√ • SCRI Best Practices Protocol: “Sampling, Labeling, and Shipping of Biodegradable Mulch Field Samples..”, √ 03/31/10 • SCRI Best Practices Protocol: “Receiving, Storing, Sampling & Cleaning Mulches ..”√ 3/25/10. SCRI Annual Meeting, Lubbock, TX 6/1/11

  4. Activity II Summary • (Analysis of Spunbond PLA Mulches ..) • II-A: Greenhouse Study 1 √ • Greenhouse Study 2: Mr. Dharmalingam will discuss on 6/2 (in progress) • II-B: (Weather resistance performance assessment) in progress (delayed due to equipment issues) • II-C: Biodegradation testing .. Will initiate in July, 2011 at Mich St Univ (Doug, Sathish, Ramani, ElodieHarblote) SCRI Annual Meeting, Lubbock, TX 6/1/11

  5. Activity III+VI Summary • (Evaluate 2010 Core BDMs in HT and Open Field ..) • III-D-iv: (Physical/chemical analysis of BDMs in high tunnels / field studies)  • Testing is completed for 2010 studies. Statistical analysis is currently being performed. • 2011 involves a new Spunbond PLA product: lower MW; black • 2011 studies: samples are being shipped to the MWG. • VI-B: Plans have been made to prepare a new PLA/poly(hydroxyburyrate) blend-based BDM later in 2011 (Larry) SCRI Annual Meeting, Lubbock, TX 6/1/11

  6. Greenhouse Study 1, Results (Activity II-A) • L.C. Wadsworth, D.G. Hayes, A.L. Wszelaki, T.L. Washington, J. Martin, J. Lee, C. T. Pannell, C. Miles, and D.A Inglis. Study of Biodegradable Mulch Materials in a Greenhouse Environment—Part 1, Cellulosic & Melt-spun 100% PLA Nonwovens, JEFF Journal, in preparation (2011) SCRI Annual Meeting, Lubbock, TX 6/1/11

  7. Activity II-B(Weather Resistance) • Samples will be exposed to weathering for 0 √, 100 √, 250, and 500 h. • (Latter 2 times) to be completed by Nov 2011. • 100 h test results: • no surface degradation (Scanning Electron Microscopy (SEM). • The changes in physical and mechanical properties vary from mulch to mulch. • Tensile load in machine direction (100 h): BioBagand BioTelo↓; other mulches: not significant changes SCRI Annual Meeting, Lubbock, TX 6/1/11

  8. Activity III-D Results SCRI Annual Meeting, Lubbock, TX 6/1/11

  9. Activity III-D Results SCRI Annual Meeting, Lubbock, TX 6/1/11

  10. Activity III-D Results SCRI Annual Meeting, Lubbock, TX 6/1/11

More Related