短玻璃纤维、K2Ti6O13晶须改性酚醛泡沫的性能研究

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (4): 62-65.

短玻璃纤维、K₂Ti₆O₁₃晶须改性酚醛泡沫的性能研究

宋寒¹, 吴晓青^2*

1.天津工业大学材料科学与工程学院,天津300387;
2.天津工业大学先进纺织复合材料教育部重点实验室,天津300387

收稿日期:2014-11-25 出版日期:2015-04-28 发布日期:2021-09-14
通讯作者: 吴晓青(1964-),女,博士,教授,主要从事复合材料方面的研究,Wuxiaoqing501@126.com。
作者简介:宋寒(1989-),男,硕士,主要从事酚醛泡沫复合材料的研究。

STUDY ON CHOPPED GLASS FIBERS AND K₂Ti₆O₁₃WHISKERS MODIFIED PHENOLIC FOAM

SONG Han¹, WU Xiao-qing^2*

1. School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China;
2. Key Laboratory of Advanced Textile Composite Materials of Ministry of Education,Tianjin Polytechnic University, Tianjin 300387, China

Received:2014-11-25 Online:2015-04-28 Published:2021-09-14

摘要/Abstract

摘要： 分别利用K₂Ti₆O₁₃晶须、短玻璃纤维对酚醛泡沫(PF)进行改性,并制备了不同短玻璃纤维含量的酚醛泡沫,考察了不同改性方法对酚醛泡沫的表观形貌、力学性能和保温性能的影响。表观形貌结果表明,添加4%K₂Ti₆O₁₃晶须可以显著改变酚醛泡沫的表观形貌,使得泡孔更规则、均匀。力学性能测试表明,短玻璃纤维含量在8%以内,压缩强度和弯曲强度都随着短玻璃纤维含量的增加而增大;短玻璃纤维和短玻璃纤维/4%K₂Ti₆O₁₃晶须可以显著提高酚醛泡沫的压缩强度和弯曲强度,压缩强度和弯曲强度最高分别提高了126%和208%;加入短玻璃纤维稍稍提高了酚醛泡沫的导热系数,降低了酚醛泡沫的保温性能;加入相同量的短玻璃纤维,短玻璃纤维/4%K₂Ti₆O₁₃晶须改性的酚醛泡沫相比于短玻璃纤维改性酚醛泡沫具有更高的压缩强度、弯曲强度和保温性能。

关键词: 酚醛泡沫, 短玻璃纤维, K₂Ti₆O₁₃晶须

Abstract: In order to study the effect of K₂Ti₆O₁₃whiskers and chopped glass fibers to the properties of phenolic foam (PF), samples of phenolic foam modified with K₂Ti₆O₁₃whiskers, chopped glass fibers and chopped glass fibers/4% K₂Ti₆O₁₃whiskers were prepared. Macrostructure, mechanical property and thermal insulating property of different phenolic foam samples were examined. The results show that with the addition of K₂Ti₆O₁₃whiskers the cell structure was more spherical and regular; the compressive strength, bending strength and thermal insulating property were improved compared with the neat phenolic foam. The compressive strength and bending strength of phenolic foam modified with different content of chopped glass fibers were obviously higher than neat phenolic foam, as the content of chopped glass fibers raised the compressive strength and bending strength of phenolic foam increased. The phenolic foam containing 8wt% chopped glass fibers has a higher compressive strength and bending strength, while compressive strength increased by 126% and bending strength increased by 208% compared with the neat phenolic foam; the thermal insulating property was rarely decreased. It was also found that the compressive strength, bending strength and thermal insulating property of the phenolic foam modified with chopped glass fibers/4% K₂Ti₆O₁₃whiskers were higher than the phenolic foam modified with chopped glass fibers.

Key words: phenolic foam, chopped glass fibers, K₂Ti₆O₁₃ whiskers

中图分类号:

TB332

宋寒, 吴晓青. 短玻璃纤维、K₂Ti₆O₁₃晶须改性酚醛泡沫的性能研究[J]. 复合材料科学与工程, 2015, 0(4): 62-65.

SONG Han, WU Xiao-qing. STUDY ON CHOPPED GLASS FIBERS AND K₂Ti₆O₁₃WHISKERS MODIFIED PHENOLIC FOAM[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(4): 62-65.

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短玻璃纤维、K₂Ti₆O₁₃晶须改性酚醛泡沫的性能研究

STUDY ON CHOPPED GLASS FIBERS AND K₂Ti₆O₁₃WHISKERS MODIFIED PHENOLIC FOAM

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