Influence of Heat-Treated Bovine Bone-Derived Hydroxyapatite on Physical Properties andin vitroDegradation Behavior of Poly (Lactic Acid) Composites

2013 ◽  
Vol 52 (10) ◽  
pp. 1043-1053 ◽  
Author(s):  
Suriyan Rakmae ◽  
Charussri Lorprayoon ◽  
Sanong Ekgasit ◽  
Nitinat Suppakarn
Keyword(s):  
Lactic Acid ◽  
Physical Properties ◽  
Poly Lactic Acid ◽  
Bovine Bone ◽  
Heat Treated

Physical properties and cytotoxicity of surface-modified bovine bone-based hydroxyapatite/poly(lactic acid) composites

2010 ◽  
Vol 45 (12) ◽  
pp. 1259-1269 ◽  
Author(s):  
Suriyan Rakmae ◽  
Yupaporn Ruksakulpiwat ◽  
Wimonlak Sutapun ◽  
Nitinat Suppakarn
Keyword(s):  
Lactic Acid ◽  
Physical Properties ◽  
Poly Lactic Acid ◽  
Bovine Bone ◽  
Surface Modified

Electrical Properties of Heat-Treated Poly-Lactic Acid

2011 ◽  
Vol 131 (5) ◽  
pp. 395-400 ◽  
Author(s):  
Toru Oi ◽  
Katsuyoshi Shinyama ◽  
Shigetaka Fujita
Keyword(s):  
Lactic Acid ◽  
Electrical Properties ◽  
Poly Lactic Acid ◽  
Heat Treated

Preparation of Poly(Lactic Acid) Acrylate for UV-Curable Coating Applications

2015 ◽  
Vol 659 ◽  
pp. 570-574 ◽  
Author(s):  
Apinya Musidang ◽  
Nantana Jiratumnukul
Keyword(s):  
Lactic Acid ◽  
Physical Properties ◽  
High Efficiency ◽  
Low Energy ◽  
Poly Lactic Acid ◽  
Coating Film ◽  
Pencil Hardness ◽  
Uv Curable ◽  
Low Energy Consumption ◽  
Volatile Organic

UV-curable process is widely used for paints, inks and adhesives due to its rapid curing, low energy consumption, high efficiency and low volatile organic compounds (VOCs). The objective of this research is to prepare poly(lactic acid) (PLA) based UV-curable coating by using glycolyzed PLA. PLA was glycolyzed by ethylene glycol (EG) at 170°C for 90 minutes. The obtained glycolyzed PLA was reacted with methacrylic anhydride (MAAH) to provide PLA acrylate oligomer. The obtained PLA acrylate oligomer was used in coating formulations with various amounts of photoinitiator and cured under UV radiation. Physical properties of cured coating film were investigated such as pencil hardness, gloss and haze. The results showed that poly(lactic acid) (PLA) based UV-curable coating provided good physical properties.

Compatibility and physical properties of poly(lactic acid)/poly(ethylene terephthalate glycol) blends

2012 ◽  
Vol 20 (12) ◽  
pp. 1300-1306 ◽  
Author(s):  
Jun Yong Park ◽  
Sung Yeon Hwang ◽  
Won Jae Yoon ◽  
Eui Sang Yoo ◽  
Seung Soon Im
Keyword(s):  
Lactic Acid ◽  
Physical Properties ◽  
Ethylene Terephthalate ◽  
Poly Lactic Acid ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

scholarly journals Effect of freeze‐dried durian skin nanofiber on the physical properties of poly(lactic acid) biocomposites

2020 ◽  
Author(s):  
Nurfarahin Mohd Nordin ◽  
Hazleen Anuar ◽  
Yose Fachmi Buys ◽  
Fathilah Ali ◽  
Sabu Thomas ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Physical Properties ◽  
Poly Lactic Acid ◽  
Freeze Dried

The Influence Capitalize of Properties Improvement for Reinforced Plastics by Resin Flow Control Molding Method

2012 ◽  
Vol 6 (4) ◽  
pp. 522-528 ◽  
Author(s):  
Naoki Mori ◽  
◽  
Kiyohito Gondou ◽  
Kohei Shimada ◽  
Takahiro Kitamura ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Flow Control ◽  
Physical Properties ◽  
Glass Fiber ◽  
Poly Lactic Acid ◽  
Resin Flow ◽  
Fiber Reinforced ◽  
Molding Method ◽  
Reinforced Plastics ◽  
Glass Fiber Reinforced

We are now engaged in the study on a resin flow control molding method in which molecules and fillers are positively oriented by displacing resin flows in the mold. We intend to confirm that the resin flow control molding method can properly control the orientation of fibers in glass fiber reinforced polypropylene moldings. We have also attempted to improve physical properties of poly-lactic acid molded by the resin flow control molding method. We have directly observed the process of filling resins into a glass-inserted mold to prove effectiveness of the resin flow control molding method.

Bamboo fabric reinforced polypropylene and poly(lactic acid) for packaging applications: Impact, thermal, and physical properties

2014 ◽  
Vol 35 (10) ◽  
pp. 1888-1899 ◽  
Author(s):  
Nurul Fazita Mohammad Rawi ◽  
Krishnan Jayaraman ◽  
Debes Bhattacharyya
Keyword(s):  
Lactic Acid ◽  
Physical Properties ◽  
Poly Lactic Acid

Effect of Heat-Treatment Temperature on the Osteoconductivity of the Apatite Derived from Bovine Bone

2006 ◽  
Vol 309-311 ◽  
pp. 41-44 ◽  
Author(s):  
Sang Hoon Rhee ◽  
Ho Nam Park ◽  
Yang Jo Seol ◽  
Chong Pyong Chung ◽  
Sang Hyuk Han
Keyword(s):  
Heat Treatment ◽  
Physical Properties ◽  
Heat Treatment Temperature ◽  
Zealand White Rabbit ◽  
Treatment Temperature ◽  
Bovine Bone ◽  
Carbonate Ions ◽  
Heat Treated ◽  
Ft Ir ◽  
Field Emission Electron Microscopy

Effect of heat-treatment temperature on the osteoconductivity of the apatite derived from bovine trabecular bone was investigated. Three different heat-treatment temperatures (600, 800 and 1000 oC) were adopted in the experiment and their effects on the physical properties of apatite granules, which could affect on the osteoconductivity, were evaluated. The content of carbonate ions in the apatite structure was assessed by FT-IR and its crystallinity was evaluated by X-ray diffractometry. The microstructure was assessed by field emission electron microscopy. Apatite granules heat-treated at 600 oC and 1000 oC were implanted into the calvaria of New Zealand White rabbit for 4 weeks, respectively, and the undecalcified ground histologic specimens stained with multiple staining method was observed. As increasing the heat-treatment temperature, the crystal size and crystallinity of the apatite increased while the content of carbonate ions decreased. The apatite granules heat-treated at 600 oC showed much better osteoconductivity comparing to that heat-treated at 1000 oC. The results were explained in terms of the physical properties of apatite which could affect to the osteoconductivity.

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