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SiO2对UPR浇铸体拉伸性能的影响
The effect of SiO2 addition on the mechanical properties of UPR
【Author】 Xu Yu-qiong You Min Zheng Xiao-ling Yang De-rong Zhang Jing-jing (College of Mechanical & Material Engineering, China Three Gorges University, Yichang 443002)
【机构】 三峡大学机械与材料学院；
【摘要】 研究了SiO2对不饱和聚酯树脂(UPR)浇铸体拉伸性能的影响,用应变计电测法研究了SiO2 填料对树脂浇铸体的拉伸变形特性和弹性模量的作用,运用变形功原理,对添加SiO2后材料的特性作了初步判断。结果表明:在所采取的试验条件下,填料SiO2的添加量对不饱和聚酯树脂的拉伸强度和弹性模量有显著的影响,添加量为8％时得到的强度比纯树脂试样仅提高了大约4．1％,但 SiO2添加量为8％时却对应着是材料的韧脆转变点。
【Abstract】 The Effects of SiO2 Addition on the tension properties of casting unsaturated polyester resin (UPR) is studied in this paper. By means of the strain gauges, the effects of filler on the UPR tensile deformation ability and elastic modulus are involved. On the principle of the deformation work, the characteristic of the specimen made of UPR added with SiO2 is analyzed. The results from the experiment shown that the influence of the filler on the strength and elastic modulus is evidently and the strength of the casting with 8 % wt SiO2 is 4.1% higher than that of pure one and this addition may imply with the conversion point of toughness to brittleness.
【Key words】 SiO2 filler； UPR； tensile strength； elastic modulus； deformation work； toughening；
- 【会议录名称】 第六届全国表面工程学术会议暨首届青年表面工程学术论坛论文集
- 【会议名称】第六届全国表面工程学术会议暨首届青年表面工程学术论坛
- 【会议时间】2006-08
- 【会议地点】中国甘肃兰州
- 【分类号】TQ320.7
- 【主办单位】中国机械工程学会表面工程分会