Organically Modified Layered Titanate: A New Nanofiller to Improve the Performance of Biodegradable Polylactide

Hiroi, Ryoichi; Ray, Suprakas Sinha; Okamoto, Masami; Shiroi, Takashi

doi:10.1002/marc.200400173

Cited by 92 publications

(33 citation statements)

References 7 publications

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“…As fillers, an organo-layered titanate (HTO-ODA (0.2 equiv)-LL; Otsuka Chemical, Osaka, Japan) 11 and spherical titanate (Wako Chemical, Osaka, Japan) were used.…”

Section: Experimental Materialsmentioning

confidence: 99%

Thermal properties and flame retardancy of polyglycidyloxypropyl silsesquioxane/layered titanate nanocomposites

Harada

Minamigawa

Ochi

2008

J of Applied Polymer Sci

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Polyglycidyloxypropyl silsesquioxane, which has an excellent heat resistance, was combined with sheet-like and spherical titanate as nano-fillers. The burning property of the composites was related to the shape of the dispersed titanate. A burning test was carried out according to the UL-94 test method. As a result, though the test specimen burned from one end to the other in the spherical titanate filled composite system, a fire extinguishing property was observed in the sheet-like titanate filled composite system. The extinguishing time of the latter system classified V-0 in the specification test.

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“…As fillers, an organo-layered titanate (HTO-ODA (0.2 equiv)-LL; Otsuka Chemical, Osaka, Japan) 11 and spherical titanate (Wako Chemical, Osaka, Japan) were used.…”

Section: Experimental Materialsmentioning

confidence: 99%

Thermal properties and flame retardancy of polyglycidyloxypropyl silsesquioxane/layered titanate nanocomposites

Harada

Minamigawa

Ochi

2008

J of Applied Polymer Sci

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“…Okamoto and coworkers reported that the PLA nanocomposites with layered silicate or titanate enhanced the mechanical properties and increased the crystallization rate of PLA effectively. [28][29][30][31][32] PLA is one of a kind of polyesters. We focused on methods for improvement of properties of polyesters, especially most popular polyester of poly(ethylene terephthalate) (PET).…”

Section: Introductionmentioning

confidence: 99%

Crystallization of amorphous poly(lactic acid) induced by organic solvents

Naga

Yoshida

Inui

et al. 2010

J of Applied Polymer Sci

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Crystallization of amorphous poly(lactic acid) (PLA) was investigated in various organic solvents, such as acetone, ethylacetate, diethylether, tetrahydrofurane, methanol, hexane, toluene, xylene, and o-dichlorobenene. Most of the solvents, except hexane, induced crystallization of amorphous PLA. Acetone was the most effective solvent to accelerate the crystallization among the solvents used. The crystallization was induced by permeation of acetone into the amorphous phase of PLA, and the permeation obeyed Fick type diffusion. The crystallization rate increased with increasing of conducting temperature. Crystallized PLA formed a crystalline structure. The permeated acetone in the crystallized PLA gradually evaporated as time passes, and the elimination of acetone affected thermal and mechanical properties of the crystallized PLA.

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“…Addition of a nucleating agent to PLA is effective to improve the crystallization rate, and some nucleating agents, such as benzoic acid hydrazide, for PLA have been developed [6][7][8][9][10][11][12][13][14]. Nanocomposite of PLA is an effective method to improve the mechanical properties and increased the crystallization rate of PLA [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Crystallization of Amorphous Poly(Lactic Acid) Induced by Vapor of Acetone to Form High Crystallinity and Transparency Specimen

Naga¹,

Yoshida²,

Noguchi³

et al. 2013

OJPChem

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Crystallization of amorphous poly(lactic acid) (PLA) was investigated by exposing to vapor of acetone. The vapor of acetone induced crystallization of the amorphous PLA effectively. It took about 24 min to complete the crystallization of a 1 cm × 2 cm × 0.55 mm specimen at 25˚C. The crystallization rate increased with increasing of conducting temperature. The crystallization method yielded high crystallinity about 40%, which was almost equal to that attained by annealing or immersion methods conducted as references. The specimens crystallized by the vapor showed higher transparency than those prepared by the reference methods. The crystallization was induced by diffusion of acetone into the amorphous phase of PLA, and polarized optical photomicrographs cleared that the diffusion obeyed Fick type diffusion.

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Organically Modified Layered Titanate: A New Nanofiller to Improve the Performance of Biodegradable Polylactide

Cited by 92 publications

References 7 publications

Thermal properties and flame retardancy of polyglycidyloxypropyl silsesquioxane/layered titanate nanocomposites

Thermal properties and flame retardancy of polyglycidyloxypropyl silsesquioxane/layered titanate nanocomposites

Crystallization of amorphous poly(lactic acid) induced by organic solvents

Crystallization of Amorphous Poly(Lactic Acid) Induced by Vapor of Acetone to Form High Crystallinity and Transparency Specimen

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