Zobrazeno 1 - 10
of 31
pro vyhledávání: '"M.R. Calil"'
Autor:
M.R. Calil, C.G.F. Guedes, Elisabete Frollini, Derval dos Santos Rosa, D. Grillo, Elaine C. Ramires, Marcelo A. G. Bardi
Publikováno v:
Polymer Testing. 28:836-842
The (bio)degradation of polyolefins can be accelerated by modifying the level of crystallinity or by incorporation of carbonyl groups by adding pro-oxidants to masterbatches or through exposure to ultraviolet irradiation. In this work, we sought to i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b2d397fefd31fa71bbe8d72d70dec0c
https://doi.org/10.1016/j.polymertesting.2009.07.006
https://doi.org/10.1016/j.polymertesting.2009.07.006
Autor:
Derval dos Santos Rosa, M.S.M. Petro, M.L. Rezende, Maria Inês Bruno Tavares, M.R. Calil, F. Gaboardi, C. L. Carvalho
Publikováno v:
Polymer Testing. 27:827-834
Biodegradable polymers represent a promising solution to the environmental problem of plastic waste disposal. Among the candidate polymers, starch, a low-cost natural polymer, can be processed as a thermoplastic. In this work, thermoplastic starch co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01a1ae361ad04c0912b8938f5f190752
https://doi.org/10.1016/j.polymertesting.2008.06.008
https://doi.org/10.1016/j.polymertesting.2008.06.008
Publikováno v:
Polymer Testing. 26:257-261
Films of poly( e -caprolactone) (PCL) and cellulose acetate (CA) containing different proportions of PCL/CA (100/0, 80/20, 60/40, 40/60, 20/80 and 0/100, w/w) were prepared by casting, and their degradation by two enzymes (lipase and α -amylase) was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::140c9888e454c10e914d2be7685417c7
https://doi.org/10.1016/j.polymertesting.2006.10.007
https://doi.org/10.1016/j.polymertesting.2006.10.007
Publikováno v:
Journal of Materials Science. 42:2323-2328
In this work, the influence of three starches (A1, A2 and A3) on the mechanical, morphological and thermal properties of poly(e-caprolactone) (PCL) was investigated in PCL/starch blends of 0/100, 75/25, 50/50 and 25/75 w/w%. The addition of starch to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ec0a1344f458ad22ed5041db901e332
https://doi.org/10.1007/s10853-006-1105-5
https://doi.org/10.1007/s10853-006-1105-5
Publikováno v:
Polymer Testing. 25:597-604
In this work, we compared the biodegradation of poly(e-caprolactone) (PCL), cellulose acetate (CA) and their blends using an aerobic biodegradation technique known as the Sturm test, and by their carbon dioxide (CO2) production and susceptibility to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da849d85357a81056cb8f38ad4887c88
https://doi.org/10.1016/j.polymertesting.2006.01.019
https://doi.org/10.1016/j.polymertesting.2006.01.019
Publikováno v:
Polymer Testing. 24:756-761
Waste disposal is an increasing problem as the availability of landfill areas diminishes. Growing environmental concerns have led to the development of alternative biodegradable materials with properties comparable to conventional polymeric materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b130c5f692f92f7c3b2884a199185782
https://doi.org/10.1016/j.polymertesting.2005.03.014
https://doi.org/10.1016/j.polymertesting.2005.03.014
Publikováno v:
Materials Science and Engineering: C. 24:663-670
Blends of poly(ɛ-caprolactone) (PCL) with gelatinized and nongelatinized corn starch (PCL/starch ratios of 75/25, 50/50, and 25/75 wt.%) were prepared by mechanical processing and characterized by their melt flow index (MFI), water absorption (WA),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f2825ce4e583883d57fecc5c3cca693
https://doi.org/10.1016/j.msec.2004.08.045
https://doi.org/10.1016/j.msec.2004.08.045
Publikováno v:
Materials Science and Engineering: C. 24:659-662
The biodegradation of poly(ɛ-caprolactone) (PCL), poly-β-(hydroxybutyrate) (PHB), and poly-β-(hydroxybutyrate-co-β-valerate) (PHB-V) was assessed based on the mass retention when the polymers were incubated in soil compost at 46 and 24 °C. Biode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0c0a72f7b73e8d0e5994aed706e5304
https://doi.org/10.1016/j.msec.2004.08.009
https://doi.org/10.1016/j.msec.2004.08.009
Publikováno v:
Journal of Polymers and the Environment. 12:239-245
The biodegradability of poly-β-hydroxybutyrate (PHB), poly-β-hydroxybutyrate-co-valerate (PHB-V) and poly-ɛ-caprolactone (PCL) were examined following thermal aging in an oven for 192, 425 and 600 h. Different temperatures, 100, 120 and 140°C for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddd10f229f5fca3ea9fe835372cfe8a4
https://doi.org/10.1007/s10924-004-8151-3
https://doi.org/10.1007/s10924-004-8151-3
Autor:
Carla Polo Fonseca, M.R. Calil, I. Chiovatto Neto, Andréa G. Pedroso, Silmara Neves, Derval dos Santos Rosa
Publikováno v:
Journal of Applied Polymer Science. 91:3909-3914
The thermal and mechanical properties of low-density polyethylene (LDPE), poly(e-caprolactone) (PCL), and their blends were evaluated. Differential scanning calorimetry showed that increasing the PCL content of the blend did not change the LDPE melti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7e99479113c092e4be17f2c9b65c47e
https://doi.org/10.1002/app.13596
https://doi.org/10.1002/app.13596