绿色无铅低熔点封接玻璃研究进展

Progress in Research on Green Lead-free Low-melting Sealing Glasses

传统的封接玻璃由于含有重金属元素铅,对环境和人类健康有着极大的损害,目前已经被世界各国限制使用或者禁止使用,因此,低熔点封接玻璃的无铅化将会是今后的主要发展方向。本文以低熔点封接玻璃的无铅化为出发点,归纳总结低熔点封接玻璃的主要性能。首先介绍了包括磷酸盐玻璃,钒酸盐、硼酸盐、铋酸盐玻璃在内的低熔点封接玻璃的组成、结构特点、性能以及研究现状。其次,提出了封接玻璃的封接低温化和无铅化的发展方向。最后,针对低熔点封接玻璃研究中存在的不足,对玻璃粉添加颗粒进行复合改性、加强玻璃理论研究、研发制备新工艺,是今后研究应该着力的突破点。

Traditional sealing glasses,which contain heavy metal Pb,posing threat to humans and environment,have been restricted or forbidden by most countries.Therefore,lead-free of low-melting sealing glasses will be the main future development direction.This article based on lead-free of lowmelting sealing glasses,the main properties of low-melting sealing glasses were summarized.First,the composition,structural characteristics,performance and research status of several main low-melting sealing glasses,such as phosphate glass,borate glass,vanadate glass and bismuthate glass were introduced.Second,the low temperature and lead-free development directions were put forward.At last,regarding the shortcomings in the research of low-melting sealing glasses,it was pointed out that the future focused breaking points for research are composite doping modification,theoretical research on glass and new technology development of glass preparation.