玻璃纤维增强硼改性酚醛树脂复合材料的性能.pdf

9 4 Vol. 9, No.4 2006 8 JOURNAL OF BUILDING M AT ERIALS Aug. , 2006 : 1007 9629(2006) 04 0503 04 邱 军, 王国建 ( , 200092) : 研究了玻璃纤维( GF) 含量对玻璃纤维增强硼改性酚醛树脂( GF/ BPR) 复合材料力 学性能 热性能的影响. 结果表明: 随着玻璃纤维含量的增加, GF/ BPR 复合材料的弯 曲强度和压缩强度均提高, 当玻璃纤维含量达到50% (质量分数, 下同) 时, 其弯曲强度和 压缩强度达到最大值; GF/ BPR 复合材料的冲击强度随着玻璃纤维的增加而增大, 当玻 璃纤维含量达到70%时, GF/ BPR 复合材料的冲击强度达到最大值; GF/ BPR 复合材料 的软化变形随着玻璃纤维含量的增大而逐渐降低; 当玻璃纤维含量为50% 时, GF/ BPR 复合材料的热变形温度达到196. 6 e , 比纯BPR 提高了51. 3 e , 而热膨胀系数则降低近 1 个数量级, 为1. 6@ 10 5 e 1. : 硼改性酚醛树脂; 玻璃纤维; 复合材料; 力学性能; 热性能 + :T Q327. 1 2 : A Studies on Properti es of Glass Fiber Reinforced Boron Modified Phenolic Resin Composi tes QI U J un, WA N G Guo-j ian ( School of Materials Science and Engineering, T ongji U niversity, Shanghai 200092, China) Abstract: T he relationship between glass fiber( GF) content and thermal properties and mechani cal properties of glass fiber reinforced boron modified phenolic resin( GF/ BPR) composites were studied. The results show that flexural strength, compressive strength and impact strength of GF/ BPR composites increase with the increase of GF content. Flexural strength and compressive strength of GF/ BPR composites reach the maximum when GF content is 50%. Impact strength reaches the maximum when GF content is 70% . Deformation of GF/ BPR composite decreases with the increase of GF content. T hermal deformation temperature of GF/ BPR composite with 50% GF is 196. 6 e , which is 51. 3 e higher than that of BPR itself. T hermal expansion coeffi cient of GF/ BPR composite with 50% GF is 1. 6@ 10 5 e 1, which is nearly ten times lower than that of BPR itself. Key words: