摘要
采用二氧化硅对不饱和聚酯树脂进行增强增韧，发现在所采取的试验条件下，SiO2的添加量对材料性能有显著影响，添加量为8％（质量分数）时拉伸断裂能达最大值，添加量为8％～12％时所得复合材料有较低的固化收缩率．用红外光谱法研究复合材料中分子特征基团的变化及氢键对材料性能的影响，发现在SiO2添加量低于10％时，随添加量增加，不饱和双键和羟基的吸收峰显著增强．
Silicon dioxide was used to strengthen and toughen unsaturated polyester resin. The results show that, in the employed experimental conditions, the performances of the product are greatly affected by the dosage （ mass fraction） of silicon dioxide, that the tension fracture energy reaches the maximum value at a SiO2 dosage of 8% , and that the curing shrinkage rate becomes low at a SiO2 dosage of 8% - 12%. Moreover, FT-IR spectra were used to reveal the effects of the characteristic groups and hydrogen bonds on the performances of the composite. The results indicate that the absorption peaks of unsaturated double bonds and hydroxyls greatly improve with SiO2 dosage when the dosage is less than 10%.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第7期106-110,116,共6页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金重大项目(10590351)
湖北省教育厅科研计划重大项目(2003Z001)
关键词
不饱和聚酯树脂
二氧化硅
复合材料
拉伸性能
unsaturated polyester resin
silicon dioxide
composite
tension property
