The deformation and fracture behaviour of some commercial acrylic bone cements have been investigated. Cements were characterized by gel permeation chromatography, dynamic mechanical analysis and scanning electron microscopy. The inΓuence of liquid to powder ratio, curing temperature, strain rate an
Characterization of acrylic bone cement using dynamic mechanical analysis
β Scribed by Yang, Jen-Ming ;Li, Hui-Min ;Yang, Ming-Chien ;Shih, Chun-Hsiung
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 203 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0021-9304
No coin nor oath required. For personal study only.
β¦ Synopsis
Dynamic mechanical analysis (DMA) was used to characterize the properties of acrylic bone cement with the addition of tricalcium phosphate (TCP), hydroxyethyl methacrylate (HEMA), and ethylene glycol dimethacrylate (EGDMA). The glass transition temperature of acrylic bone cement is ΓΊ100ΠC; the cement has a flat modulus response near human body temperature. The height of the damping peak decreases and becomes broader with increasing TCP content. Thus, TCP is incompatibile with acrylic bone cement. When the frequency is changed from high to low, the damping peak shifts to low temperature. The shift in damping peak with frequency indicates that this relaxation is time-dependent. When acrylic bone cement contains TCP with HEMA and EGDMA, the incompatibility between acrylic bone cement and TCP can be ameliorated.
π SIMILAR VOLUMES
## Abstract There is a very delicate relation between the amounts of all the ingredients present in the cement composition and the properties of the product. In this study, homogeneous poly(methyl methacrylate) (PMMA) microspheres were prepared by suspension polymerization technique, and used in ce
Ultrahigh molecular weight polyethylene (UHMWPE) fibers were treated with argon plasma for 5 min, followed by uv irradiation in methyl methacrylate (MMA)-chloroform solution for 5 h to obtain MMA-g-UHMWPE grafted fiber. The grafting content was estimated by the titration of esterification method. Th
An organic-inorganic hybrid material, poly(methyl methacrylate) (PMMA)-SiO 2 (SiO 2 content of 72 wt%), was prepared by incorporating PMMA structure units covalently into an SiO 2 glass network via the sol-gel approach. The hybrid sol-gel material PMMA-SiO 2 was subsequently used as the solid powder
New formulations of acrylic bone cement based on methyl methacrylate/1-hydroxypropyl methacrylate (MMA/HPMA) monomers were developed with the purpose of obtaining more ductile materials with reduced polymerization shrinkage. In this way, the ductility of such materials increased, but the introductio
## Abstract Bone cement is used as loadβdistributing filler between the prosthesis and the bone as well as a method to anchor prosthesis in orthopedic implants. In this study, crosslinked poly(methylmethacrylateβacrylic acid sodium salt), denoted as poly(MMAβAASβAMA), was applied to bone cement. Al