Sehajpal S B, Sood V K
Armed Forces Medical College Pune, Maharashtra, India.
J Prosthet Dent. 1989 Jun;61(6):746-51. doi: 10.1016/s0022-3913(89)80055-1.
Thermal conductivity of poly(methylmethacrylate) is low. Fillers of silver, aluminum, and copper particles at 25% concentration, increased thermal conductivity of poly(methylmethacrylate) by 4.53, 4.43, and 4.04 times, respectively. Although the compressive strength of poly(methylmethacrylate) increased with the addition of these fillers, tensile strength decreased. Silver and copper particles made the material radiopaque. Advantages of metal-filled acrylic resin denture bases are described.
聚甲基丙烯酸甲酯的热导率较低。浓度为25%的银、铝和铜颗粒填料分别使聚甲基丙烯酸甲酯的热导率提高了4.53倍、4.43倍和4.04倍。尽管添加这些填料后聚甲基丙烯酸甲酯的抗压强度有所提高，但其拉伸强度却降低了。银和铜颗粒使材料具有射线不透性。文中描述了金属填充丙烯酸树脂义齿基托的优点。
