摘要
选取以铁钛着色的棕色低硼硅医药玻璃为基础成分,分别探索碱金属氧化物和氧化铝与氧化硼对玻璃耐水性的影响。研究发现:当ω(Na2O+K2O+SiO2)=80%,ω(Na2O+K2O)≤14%时,耐水性可达到1级,碱金属离子是玻璃耐水性变差的关键性因素;当ω(A l2O3+B2O3+SiO2)=80%,选取ω(Na2O)=10.8%,ω(K2O)=2.2%时,随A l2O3和B2O3总量的提高,耐水是不断地提高,当ω(A l2O3+B2O3)≥6%即可达到耐水性1级,证明A l2O3和B2O3是耐水性提高的关键性因素。
Using iron - titanium colored brown low boron silicate medicinal glass as a matrix, the effect of alkali and alumina as well as boric oxide on water resistance was investigated. The results show that when ω（ Na2O ＋ K2O ＋ SiO2 ） = 80% , ω（ Na2O ＋ K2O） ≤14-% , water resistance can reach grade 1. Alkali is the major factor resulting in deterioration of water resistance. When to（ Al2O3 ＋ B2O3 ＋ SlOE ） = 80%, and ω（ Na2O ＋ K2O） = 13%, ω （Na2O） = 10. 8%, ω （K2O） = 2. 2%, the water resistance is improving with increase of Al2O3 and B2O3 content. When ω（Al2O3 ＋ B2O3 ）≥6% , the water resistance can reach grade 1. It indicates that Al2O3 and B2O3 are the major factors for improvement of water resistance.
出处
《玻璃与搪瓷》
CAS
2011年第4期1-4,共4页
Glass & Enamel
关键词
化学稳定性
棕色医药玻璃
耐水性
chemical durability
brown medicinal glass
water resistance
