易彩快三app

《化学与黏合》
 
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2018年 第5期

耐热胶黏剂制备及性能研究
贾新亮1,曹先启1,陈泽明1,2,李博弘1,王 婷3,谭 蕾2,韩 爽1,王 超1,2*
(1.易彩快三app,黑龙江 哈尔滨 150040;2.黑龙江省科学院 高技术研究院,黑龙江 哈尔滨 150020;3.黑龙江鑫粮淳酒业有限公司,黑龙江 哈尔滨 150000)
摘 要:以稀土改性醇溶性磷酸盐添加一定份数的酚醛树脂、有机硅树脂、磷腈环氧作为树脂基体;以Al2O3,B4C为主体,以Al2O3短切纤维和SiN短切纤维为增韧剂制备耐高温无机填料。将树脂与填料按照一定比例混合均匀超声分散,80℃/4h固化。通过对胶黏剂的力学性能测试可知其室温剪切强度为15.8MPa、400℃/10min剪切强度为8MPa、600℃/10min剪切强度为13.6MPa、1000℃/10min的剪切强度为10.2MPa。通过TG,SEM,XRD等分析手段对胶黏剂粘接强度及粘接机理进行分析。结果表明当温度在400℃以上时胶黏剂体系中的B4C发生氧化生成流动性及浸润性较好的B2O3;改性醇溶性磷酸盐和B2O3对高温的粘接强度起到良好的促进作用。
关键词:磷腈环氧;耐高温;改性醇溶性磷酸盐;填料
  中图分类号:TQ 435.5 文献标识码:A 文章编号:1001–0017 (2018)05–0343-04

The Study on the Preparation and Properties of Heat-resistant Adhesives

JIA Xin-liang1, CAO Xian-qi1, CHEN Ze-ming1,2, LI Bo-hong1, WANG Ting3, TAN Lei2 HAN Shuang1 and WANG Chao12

(1.Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, China;2. Institute of Advanced Technology, Heilongjiang Academy of Sciences, Harbin 150020, China;3. Heilongjiang Xin Grain Wine Industry Co., Ltd., Harbin 15000, China)

Abstract: A certain number of phenolic resin, silicone resin, phosphazene epoxy resin mixed with modified alcohol-soluble phosphate is used as the matrix; A high-temperature resistant inorganic fillers are prepared with Al2O3 and B4C as main components, and Al2O3 short chopped fibers and SiN short chopped fibers as toughening agents. The resin and fillers are mixed and dispersed uniformly by ultrasonic in a certain proportion and cured at 80℃ in 4h. Through the adhesive mechanical properties test, it is found that the shear strength is 15.8MPa at room temperature; the shear strength is 8MPa at 400°C/10min, 13.6MPa at 600°C/10min and 10.2MPa at 1000°C/10min. The bonding strength and mechanism of adhesives are analyzed by means of TG, SEM, XRD. The results show that when the temperature is above 400°C, the B4C in the adhesive system is oxidized to generate B2O3 with a better fluidity and wettability. The modified alcohol-soluble phosphate and B2O3 plays an important role in the bonding strength at high temperature.

Key words: Phosphazene epoxy; high temperature resistance; modified alcohol-soluble phosphate; filler

 
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