汽车玻璃油墨用无铅低熔点玻璃的研究与制备

摘要/Abstract

摘要： 采用高温熔融法制备了R₂O-Bi₂O₃-B₂O₃-SiO₂系无铅低熔点玻璃,并将其应用于汽车玻璃油墨,重点研究了组成对玻璃结构、热学性能和耐酸性能的影响规律。结果表明,随着Bi₂O₃/B₂O₃和Bi₂O₃/SiO₂的增加,[BO₃]和[BiO₃]三角体结构单元数量逐渐减少,[SiO₄]和[BO₄]四面体结构单元数量逐渐增多,玻璃的网络结构增强。当碱金属氧化物总量为15%(摩尔分数)时,双碱玻璃的热膨胀系数α_{25~320 ℃}、转变温度T_g和软化温度T_f比单碱玻璃的小,耐酸质量损失率D_r更低。当n(Li₂O)∶n(Na₂O)=1∶1时,双碱玻璃的α_{25~320 ℃}为9.35×10^-6 ℃^-1,T_g值降低至439.8 ℃,T_f值为481.7 ℃,D_r值为0.006 70 g/cm²。将其应用于汽车玻璃油墨,烧结后的油墨具有良好的附着力、黑度、遮盖率和光泽度。

关键词: R₂O-Bi₂O₃-B₂O₃-SiO₂系玻璃, 无铅低熔点玻璃, 结构, 热学性能, 耐酸性能, 汽车玻璃油墨

Abstract: In this study, R₂O-Bi₂O₃-B₂O₃-SiO₂ lead-free low-melting point glass was prepared by high temperature melting method and applied to automobile glass enamel. The effect of composition on the structure, thermal properties and acid resistance of glass was studied. The results show that with the increase of Bi₂O₃/B₂O₃ and Bi₂O₃/SiO₂, the [BO₃] and [BiO₃] triangular structural units gradually decrease, the [SiO₄] and [BO₄] tetrahedral structural units gradually increase, and the network structure of glass is enhanced. When the alkali metal oxide content is 15% (mole fraction), the thermal expansion coefficient α_{25~320 ℃}, transition temperature T_g and softening temperature T_f of double alkali glass are smaller than those of single alkali glass, and the acid mass loss rate D_r is lower. When n(Li₂O)∶n(Na₂O) is 1∶1, the α_{25~320 ℃} of double alkali glass is 9.35×10^-6 ℃^-1, the T_g value is reduced to 439.8 ℃, the T_f value is 481.7 ℃, and the D_r value is 0.006 70 g/cm². Applying it to automotive glass enamel, the sintered enamel has good adhesion, blackness, coverage and gloss.

Key words: R₂O-Bi₂O₃-B₂O₃-SiO₂ glass, lead-free low-melting point glass, structure, thermal property, acid resistance, automotive glass enamel

中图分类号:

TQ171.1

赵田贵, 刘昆, 刘溧, 董伟霞, 包启富, 徐和良, 周健儿. 汽车玻璃油墨用无铅低熔点玻璃的研究与制备[J]. 硅酸盐通报, 2023, 42(8): 2936-2944.

ZHAO Tiangui, LIU Kun, LIU Li, DONG Weixia, BAO Qifu, XU Heliang, ZHOU Jian'er. Research and Preparation of Lead-Free Low-Melting Point Glass for Automobile Glass Enamel[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(8): 2936-2944.

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