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首页> 外文期刊>Journal of Applied Polymer Science >The effect of trivalent metal nitrates on the properties of dental cements made from poly(acrylic acid)
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The effect of trivalent metal nitrates on the properties of dental cements made from poly(acrylic acid)

机译：三价金属硝酸盐对由聚丙烯酸制成的牙科骨水泥性能的影响

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Addition of either Al(NO3)(3) or Fe(NO3)(3) to zinc polycarboxylate and glass polyalkenoate dental cements has been shown to cause an acceleration to their setting reactions. In the case of Fe(NO3)(3), the reaction was so fast that cements could not be mixed, but Al(NO3)(3) had a less severe effect, and cements containing various amounts of this additive were prepared. Their compressive strength at 24 h was lower than for the original cements, with zinc polycarboxylate being more affected than the glass polyalkenoate. Both cements are made from poly(acrylic acid), and infrared spectroscopy showed that both Al(NO3)(3) and Fe(NO3)(3) form adducts with this polymer, the interaction of aluminum with the polymer being significantly different from that of the iron (III) species. The binding by Al(NO3)(3) was also shown to reduce the pH of a poly(acrylic acid) solution. (C) 1998 John Wiley & Sons, Inc. [References: 23]
机译：业已表明，向多羧酸锌和聚链烯酸玻璃牙科水泥中添加Al（NO3）（3）或Fe（NO3）（3）会加速其固化反应。在Fe（NO3）（3）的情况下，反应如此之快以致无法混合水泥，但是Al（NO3）（3）的作用不那么严重，并且制备了包含各种量的这种添加剂的水泥。它们在24小时的抗压强度低于原始水泥，聚羧酸锌比玻璃链烯酸酯受到的影响更大。两种水泥均由聚丙烯酸制成，红外光谱显示，Al（NO3）（3）和Fe（NO3）（3）均与该聚合物形成加合物，而铝与该聚合物的相互作用与该聚合物明显不同。铁（III）种类。还显示出通过Al（NO3）（3）的结合降低了聚丙烯酸溶液的pH。 （C）1998 John Wiley＆Sons，Inc. [参考：23]

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