Degradation of composite materials composed of tricalcium phosphate and a new type of block polyester containing a poly(L-lactic acid) segment

1999 ◽  
Vol 10 (4) ◽  
pp. 421-432 ◽  
Author(s):  
Yohji Imai ◽  
Megumi Nagai ◽  
Mariko Watanabe
Keyword(s):  
Lactic Acid ◽  
Composite Materials ◽  
Tricalcium Phosphate ◽  
New Type

Composite Materials in the Zirconia-Tricalcium Phosphate System for Bone Implants

2018 ◽  
Vol 483 (1) ◽  
pp. 59-63
Author(s):  
V. Smirnov ◽  
◽  
M. Goldberg ◽  
A. Krylov ◽  
S. Smirnov ◽  
...  
Keyword(s):  
Composite Materials ◽  
Tricalcium Phosphate ◽  
Bone Implants ◽  
Phosphate System

scholarly journals A Review: Research Progress in Modification of Poly (Lactic Acid) by Lignin and Cellulose

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 776
Author(s):  
Sixiang Zhai ◽  
Qingying Liu ◽  
Yuelong Zhao ◽  
Hui Sun ◽  
Biao Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Composite Materials ◽  
Crystallization Rate ◽  
Research Progress ◽  
Poly Lactic Acid ◽  
Green Composite ◽  
Materials Development ◽  
Research Attention ◽  
Biomass Components

With the depletion of petroleum energy, the possibility of prices of petroleum-based materials increasing, and increased environmental awareness, biodegradable materials as a kind of green alternative have attracted more and more research attention. In this context, poly (lactic acid) has shown a unique combination of properties such as nontoxicity, biodegradability, biocompatibility, and good workability. However, examples of its known drawbacks include poor tensile strength, low elongation at break, poor thermal properties, and low crystallization rate. Lignocellulosic materials such as lignin and cellulose have excellent biodegradability and mechanical properties. Compounding such biomass components with poly (lactic acid) is expected to prepare green composite materials with improved properties of poly (lactic acid). This paper is aimed at summarizing the research progress of modification of poly (lactic acid) with lignin and cellulose made in in recent years, with emphasis on effects of lignin and cellulose on mechanical properties, thermal stability and crystallinity on poly (lactic acid) composite materials. Development of poly (lactic acid) composite materials in this respect is forecasted.

scholarly journals A Review on a Straight Bevel Gear Made from Composite

2016 ◽  
Vol 5 (3) ◽  
pp. 73 ◽  
Author(s):  
Haidar F. AL-Qrimli ◽  
Karam S. Khalid ◽  
Ahmed M. Abdelrhman ◽  
Roaad K. Mohammed A ◽  
Husam M. Hadi
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Power Transmission ◽  
Bevel Gear ◽  
Robotic Arm ◽  
Straight Bevel Gear ◽  
Different Types ◽  
New Type ◽  
New Form ◽  
Material Composite

The purpose of this work is to present a clear fundamental thought for designing and investigating straight bevel gear made of composite material. Composite materials have the advantage of being light, producing low noises, and extra loading capacities. Due to these properties, it is highly preferable over conventional materials. A comparison between different types of material used in a gear structure will be shown. The outcome shows that a new form of cheap material may be useful for designing a new type of lighter and stiffer gear, designed for robotic arm applications or any power transmission application.

Sign in / Sign up

Export Citation Format

Share Document