...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials science & engineering >The influence of PMMA in 4-META/MMA-TBB resin on the degree of conversion and bonding durability to titanium
【24h】

The influence of PMMA in 4-META/MMA-TBB resin on the degree of conversion and bonding durability to titanium

机译：4-META / MMA-TBB树脂中PMMA对钛转化率和粘结耐久性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The function of poly(methyl methacrylate) (PMMA) in 4-acryloyloxyethyl trimellitate anhydride/methyl methacrylate-tri-n-butylborane (4-META/MMA-TBB) resin during polymerization was investigated. Resin specimens were prepared using two experimental [MB-8C (EM) and SB-LL White (ES)] and two commercial (L-Type Clear (CL) and Clear (CC)] PMMA powders. Following thermocycling (0, 500, and 2000 cycles), the degree of conversion of each resin and its tensile bond strength to titanium were measured. The experimental powders had spherical morphology and contained substantially smaller particles than the commercial powders. The experimental EM and ES powders had the highest and lowest molecular weight, respectively, among the powders investigated. Before thermocycling, the two experimental resins showed significantly lower degrees of conversion than the two commercial resins. After 2000 cycles, the experimental EM resin showed significantly lower degree of conversion and bond strength values than the commercial resins, whereas the experimental ES resin showed comparable corresponding values to those of the commercial resins. The size and molecular weight of PMMA powder in the resin seemed to influence the degree of conversion of the resin and, to a certain degree, its bond strength to titanium, probably by altering the dissolving tendency and influencing the resulting polymer structure.
机译：研究了聚甲基丙烯酸甲酯（PMMA）在4-丙烯酰氧基乙基偏苯三酸酐/甲基丙烯酸甲酯-三正丁基硼烷（4-META / MMA-TBB）树脂中的作用。使用两种实验性[MB-8C（EM）和SB-LL White（ES）]和两种市售（L型透明（CL）和透明（CC）] PMMA粉末制备树脂样品。热循环（0，500，和2000次循环），测量了每种树脂的转化度及其与钛的拉伸粘合强度，实验粉末具有球形形态，并且比市售粉末具有明显更小的颗粒，EM和ES粉末的分子最高和最低。在热循环之前，两种实验树脂的转化率明显低于两种市售树脂；经过2000次循环后，实验EM树脂的转化率和粘结强度值均大大低于市售树脂，而实验用ES树脂则显示出与市售树脂相当的对应值。可能通过改变溶解趋势并影响所得的聚合物结构来影响树脂的转化程度，并在一定程度上影响其与钛的结合强度。

著录项

  • 来源
    《Materials science & engineering》 |2010年第1期|219-223|共5页
  • 作者

    Young-Jin Kim; Kyo-Han Kim; Tae-Yub Kwon;

  • 作者单位

    Department of Pediatric Dentistry. School of Dentistry, Kyungpook National University, 2-188-1 Samduk-dong, Jung-gu, Daegu 700-412, Republic of Korea;

    Department of Dental Biomaterials, School of Dentistry, Kyungpook National University, 2-188-1 Samduk-dong, Jung-gu, Daegu 700-412, Republic of Korea;

    Department of Dental Biomaterials, School of Dentistry, Kyungpook National University, 2-188-1 Samduk-dong, Jung-gu, Daegu 700-412, Republic of Korea;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    4-META/MMA-TBB resin; PMMA; degree of conversion; bonding durability; titanium;

    机译：4-META / MMA-TBB树脂;PMMA;转换程度;粘结耐久性;钛;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号