填料对拉挤环氧树脂工艺及反应特性的影响
|
摘要
本实验在填料填充量一致的条件下,向环氧树脂中添加相同种类、不同粒径Al(OH)_3填料以及相同粒径、不同种类填料,对比加入填料后环氧树脂的粘度、凝胶时间、沉淀情况以及其固化物的T_g和拉伸、压缩、弯曲强度。结果显示:加入填料的环氧树脂较不加填料的环氧树脂的凝胶时间缩短,环氧树脂粘度和T_g均有所提高,拉伸、压缩和弯曲强度均下降。对比相同粒径、不同种类填料对环氧树脂的影响,加入Al(OH)_3的环氧树脂凝胶时间最短、粘度最高;加入高岭土的环氧树脂凝胶时间最长;加入烧土的环氧树脂粘度最低;加入轻质碳酸钙、重质碳酸钙的环氧树脂表面产生了气泡且重质碳酸钙沉淀现象更明显;加入烧土、高岭土的环氧树脂也产生了沉淀,但加入高岭土的环氧树脂沉淀较少。
In this paper, the same kind, different particle size Al(OH)_3 filler and the same particle size, different kinds of fillers are added to the epoxy resin under the same filling amount of the filler, the viscosity, gel time, precipitation of the epoxy resin and the Tg, tensile, compressive, and flexural strength of the cured epoxy resin were compared after the addition of the filler.The results show that the gel time of the epoxy resin which add the filler is shorter than the epoxy resin without filler, both viscosity and Tg temperature are improved, and tensile, compressive and flexural strengths are reduced. Compare the effect of the same particle size, different kinds of fillers on epoxy resin, the epoxy resin with Al(OH)_3 has the shortest gel time and the highest viscosity, the epoxy resin added the kaolin has the longest gel time, and the epoxy resin added the calcined kaolin has the lowest viscosity; the surface of the epoxy resin added with light calcium carbonate and heavy calcium carbonate generates bubbles and the precipitation of heavy calcium carbonate is more obvious; the epoxy resin added the calcined kaolin and kaolin also precipitated, but the precipitation of epoxy resin added the kaolin was lighter.
In this paper, the same kind, different particle size Al(OH)_3 filler and the same particle size, different kinds of fillers are added to the epoxy resin under the same filling amount of the filler, the viscosity, gel time, precipitation of the epoxy resin and the Tg, tensile, compressive, and flexural strength of the cured epoxy resin were compared after the addition of the filler.The results show that the gel time of the epoxy resin which add the filler is shorter than the epoxy resin without filler, both viscosity and Tg temperature are improved, and tensile, compressive and flexural strengths are reduced. Compare the effect of the same particle size, different kinds of fillers on epoxy resin, the epoxy resin with Al(OH)_3 has the shortest gel time and the highest viscosity, the epoxy resin added the kaolin has the longest gel time, and the epoxy resin added the calcined kaolin has the lowest viscosity; the surface of the epoxy resin added with light calcium carbonate and heavy calcium carbonate generates bubbles and the precipitation of heavy calcium carbonate is more obvious; the epoxy resin added the calcined kaolin and kaolin also precipitated, but the precipitation of epoxy resin added the kaolin was lighter.
引文
1梁平辉,苏浩,杜厚武,等.玻璃钢/复合材料,2012(S1),205.
2孙曼灵,吴良义.环氧树脂应用原理与技术,北京机械工业出版社,2002.
3张建伟,孔义.玻璃钢/复合材料,1998(3),40.
4何东晓,王辉,王书秋.纤维复合材料,1994(4),37.
5曾亮,朱伟,高敬民,等.绝缘材料,2014,47(3),13.
6邬志华,肖加余,刘钧,等.功能材料,2015,46(S2),189.
7董美丽.复合型阻燃剂对环氧树脂阻燃及力学性能的影响,硕士学位论文,沈阳航空航天大学,2018.
8孙曼灵.环氧树脂固化促进剂(Ⅱ)---环氧/酸酐体系的固化促进剂,第十六次全国环氧树脂应用技术学术交流会暨学会西北地区分会第五次学术交流会暨西安粘接技术协会学术交流会论文集,西安2012,pp.19.
2孙曼灵,吴良义.环氧树脂应用原理与技术,北京机械工业出版社,2002.
3张建伟,孔义.玻璃钢/复合材料,1998(3),40.
4何东晓,王辉,王书秋.纤维复合材料,1994(4),37.
5曾亮,朱伟,高敬民,等.绝缘材料,2014,47(3),13.
6邬志华,肖加余,刘钧,等.功能材料,2015,46(S2),189.
7董美丽.复合型阻燃剂对环氧树脂阻燃及力学性能的影响,硕士学位论文,沈阳航空航天大学,2018.
8孙曼灵.环氧树脂固化促进剂(Ⅱ)---环氧/酸酐体系的固化促进剂,第十六次全国环氧树脂应用技术学术交流会暨学会西北地区分会第五次学术交流会暨西安粘接技术协会学术交流会论文集,西安2012,pp.19.