短玻纤/不饱和聚酯架构夹芯材料的压缩性能  

Compressive properties of the chopped glass fiber/unsaturated polyester resin sandwich material

作　　者：沈亚祺[1] 王晓钧[1] 李文清[1] 沈梦[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《热固性树脂》2016年第1期44-49,共6页Thermosetting Resin

基　　金：南京工业大学开放实验室基金(2015DC007)资助;江苏省大创课题(201410291040Z)资助

摘　　要：对3种不同线密度的玻璃纤维进行直立式浸胶,将浸胶的玻纤通过叉式架构成型工艺制备短玻纤/不饱和聚酯树脂(CGF/UPR)架构夹芯材料。通过平压和测压性能测定及扫描电镜分析研究了玻纤线密度对(CGF/UPR)架构夹芯材料性能的影响。结果表明:900tex玻纤制得的(CGF/UPR)架构夹芯材料的平压比强度和侧压比强度最高,分别达到(1.80±0.01)×103 N·m/kg和(9.80±0.03)×103 N·m/kg。在该材料的平压和侧压两种受力过程中,材料结构的破坏均缘于纤维束自身破坏和粘结点破坏,这两种破坏形式结合架构夹芯材料的无序结构特征,导致短玻纤/不饱和聚酯树脂架构夹芯材料表现出平压无屈服性的特性。Three different linear densities of the glass fiber were up-right impregnated. The chopped glass fiber/unsaturated polyester resin （CGF/UPR） sandwich material was prepared using the impregnated glass fiber by cross-fabrication method. The effect of glass fiber linear density on the properties of the CGF/UPR sandwich material was investigated by the testings of flatwise and edgewise compression and SEM analysis. The results showed that the flatwise and edgewise compressive specific strength of the CGF/UPR sandwich specimen fabricated by 900 tex glass fiber were the maximum and reached （1.80±0.01）×10^3N·m/kg and （9.80±0.03）×10^3N·m/kg, respectively. In the process of flatwise and edgewise tests, the destruction of material structure were due to the tow self- destruction and the bonding point damage. These two forms of damage combined with the disordered structure characteristics of sandwich material led to the no flatwise compressive yielding of the CGF/UPR sandwich material.

关 键 词：玻璃纤维 不饱和聚酯树脂 压缩性能 夹芯材料 

分 类 号：TQ323.42[化学工程—合成树脂塑料工业]