氧化锌和氧化镁对磷酸盐胶黏剂吸潮性能的影响

材料导报

2021, Vol. 35

Issue (z2): 72-74

无机非金属及其复合材料

氧化锌和氧化镁对磷酸盐胶黏剂吸潮性能的影响

艾兵¹, 包予佳², 张世超¹, 孙现凯¹, 孙浩然¹, 陶柳实¹, 王春朋¹

1 中国建筑材料科学研究总院有限公司,北京 100024
2 北京动力机械研究所,北京 100074

Effects of ZnO and MgO on Moisture Absorption Properties of Aluminum Phosphate Adhesives

AI Bing¹, BAO Yujia², ZHANG Shichao¹, SUN Xiankai¹, SUN Haoran¹, TAO Liushi¹, WANG Chunpeng¹

1 China Building Materials Academy, Beijing 100024, China
2 Beijing Institute of Power Machinery, Beijing 100074, China

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摘要磷酸铝胶黏剂具有固化温度低、无毒、粘结强度高、高温结构稳定等优点,可以粘结金属、陶瓷,还可以作为耐火材料和复合材料的基体,在建筑和航天领域有着广泛的应用。本文以H₃PO₄、Al(OH)₃配制的磷酸盐溶液为基料,ZnO和MgO为固化剂,制备了改性磷酸铝胶粘剂,研究固化剂的添加对磷酸盐胶黏剂性能的影响,并用于制备氧化铝纤维隔热材料。调节ZnO和MgO的添加量在1%~5%(质量分数),通过差示扫描量热法(DSC)研究了胶黏剂的固化温度,通过扫描电镜分析隔热材料结构,通过对比各试样大气环境下的增重比例研究磷酸盐胶黏剂的吸湿性能。结果表明,ZnO和MgO的加入都能不同程度降低胶黏剂的固化温度,促进胶黏剂的交联固化,其中,添加5%(质量分数)ZnO和5%(质量分数)MgO可以将磷酸盐胶黏剂的固化温度从254 ℃分别降低到172 ℃和161 ℃。随固化剂的加入量越多吸湿性能改善越明显,其中,加入5%(质量分数)MgO可以将胶黏剂的吸湿性增重比例从13.5%降低到6.3%。

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	艾兵
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	孙现凯
	孙浩然
	陶柳实
	王春朋

关键词: 磷酸盐胶黏剂固化剂固化温度吸湿性能

Abstract: Aluminum phosphate adhesive has many advantages, such as low curing temperature, non-toxic, high bond strength, stable structure at high temperature, etc. It can bond metals and ceramics, and can also be used as a refractory and composite body. It has been widely used in construction and aerospace fields. In this paper, aluminum phosphate adhesive was prepared by H₃PO₄ and Al(OH)₃, ZnO or MgO was added as the curing agent, the addition amount of ZnO and MgO was adjusted at 1%~5%. The effect of the amount of curing agent on the properties of phosphate adhesives was studied. Alumina fiber thermal insulation materials were prepared by using the modified aluminum phosphate adhesives and alumina fiber. The curing temperature of the adhesives was studied by differential scanning calorimetry (DSC). The structure of heat insulation material was analyzed by scanning electron microscope. The results showed that the addition of ZnO and MgO could reduce the curing temperature of adhesive and promote the cross-linking curing of adhesives. By adding 5wt%ZnO and 5wt%MgO could reduce the curing temperature of phosphate adhesives from 254 ℃ to 172 ℃ and 161 ℃, respectively. Among them, by adding 5%MgO can reduce the hygroscopic weight gain ratio of adhesive from 13.5% to 6.3%.

Key words: aluminum phosphate adhesive curing agent curing temperature moisture absorption

发布日期: 2021-12-09

ZTFLH:

TB35

通讯作者: aibing@cbma.com.cn

作者简介: 艾兵,高级工程师,2017年12月,在武汉理工大学获得博士学位。毕业后,进入中国建筑材料科学研究总院有限公司工作。在国内外学术期刊上发表论文8篇,申请国家发明专利5项。研究工作主要围绕隔热材料的制备、基础理论和应用研究。

引用本文:

艾兵, 包予佳, 张世超, 孙现凯, 孙浩然, 陶柳实, 王春朋. 氧化锌和氧化镁对磷酸盐胶黏剂吸潮性能的影响[J]. 材料导报, 2021, 35(z2): 72-74.
AI Bing, BAO Yujia, ZHANG Shichao, SUN Xiankai, SUN Haoran, TAO Liushi, WANG Chunpeng. Effects of ZnO and MgO on Moisture Absorption Properties of Aluminum Phosphate Adhesives. Materials Reports, 2021, 35(z2): 72-74.

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http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2021/V35/Iz2/72

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