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Biodegradable blends of poly (lactic...

Sood, Nitin K.

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Biodegradable blends of poly (lactic acid) (PLA) / polyhydroxybutrate (PHB) copolymer and its effects on rheological, thermal and mechanical properties.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Biodegradable blends of poly (lactic acid) (PLA) / polyhydroxybutrate (PHB) copolymer and its effects on rheological, thermal and mechanical properties./
作者:	Sood, Nitin K.
面頁冊數:	64 p.
附註:	Source: Masters Abstracts International, Volume: 49-02, page: 1384.
Contained By:	Masters Abstracts International49-02.
標題:	Engineering, Biomedical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1486818
ISBN:	9781124271699

Biodegradable blends of poly (lactic acid) (PLA) / polyhydroxybutrate (PHB) copolymer and its effects on rheological, thermal and mechanical properties.
Sood, Nitin K.

Biodegradable blends of poly (lactic acid) (PLA) / polyhydroxybutrate (PHB) copolymer and its effects on rheological, thermal and mechanical properties. - 64 p.

Source: Masters Abstracts International, Volume: 49-02, page: 1384.

Thesis (M.S.)--University of Massachusetts Lowell, 2010.

Poly (Lactic acid) is the most important plastic derived from the renewable resources. PLA based products have extensively been used in the medical industry. However, PLA has a few disadvantages such as inherent brittleness and low toughness despite a high modulus.

ISBN: 9781124271699Subjects--Topical Terms:

1017684
Engineering, Biomedical.

Biodegradable blends of poly (lactic acid) (PLA) / polyhydroxybutrate (PHB) copolymer and its effects on rheological, thermal and mechanical properties.
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245 1 0 $a Biodegradable blends of poly (lactic acid) (PLA) / polyhydroxybutrate (PHB) copolymer and its effects on rheological, thermal and mechanical properties.
300 $a 64 p.
500 $a Source: Masters Abstracts International, Volume: 49-02, page: 1384.
500 $a Adviser: Stephen P. McCarthy.
502 $a Thesis (M.S.)--University of Massachusetts Lowell, 2010.
520 $a Poly (Lactic acid) is the most important plastic derived from the renewable resources. PLA based products have extensively been used in the medical industry. However, PLA has a few disadvantages such as inherent brittleness and low toughness despite a high modulus.
520 $a A focus of this experiment was to study the improvement in toughness of PLA and to study the changes in thermal and rheological properties by blending PLA with a PHB copolymer. Where, PLA and PHB copolymer were melt blended using a twin screw Brabender extruder in the ratios of 100/0, 70/30, 50/50, 30/70, 0/100. Further, the blends were injection molded into tensile bar and impact bars for mechanical testing.
520 $a Rheological properties were studied using a Galaxy capillary rheometer for melt viscosities and temperature dependence indicated a shear-thinning behavior along with power law model and consistency index. Blends were characterized to study the phase model using a differential scanning calorimetric (DSC), showed two separate phases. Mechanical properties were analyzed using a Tensile and Izod impact test indicating decrease in elastic modulus with increase in toughness and elongation as the PHB copolymer content was increased in the blend.
590 $a School code: 0111.
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650 4 $a Plastics Technology. $3 1023683
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