云纹干涉法比较不同纤维加强聚合瓷的弹性模量研究  

Study on elastic modulous of fbers enhanced Solidex ceromer by using moire interfereometery

作　　者：林翠红 陈爱国[2] 朱洪水[3] 李禾[4] 

机构地区：[1]厦门市第一医院口腔科,厦门361008 [2]厦门市中医院口腔科,厦门361003 [3]南昌大学附属口腔医院,南昌330004 [4]南昌航空大学力学研究室,南昌330063

出　　处：《口腔材料器械杂志》2013年第3期149-152,157,共5页Chinese Journal of Dental Materials and Devices

摘　　要：目的运用云纹干涉法比较3种纤维对聚合瓷弹性模量的加强作用。方法选用高强玻璃纤维S-Glass、芳纶纤维Kevlar-49及超高聚乙烯纤维UHMWPE 3种不同的纤维加入Solidex聚合瓷中,以不加纤维的Solidex聚合瓷作为空白对照,制作4组试件,每组3个。在试件表面转移光栅,采用三点弯曲加载方法,加载后采集u场及v场云纹干涉条纹,测定其弹性模量,并进行统计分析。结果空白对照组、S-Glass组、Kevlar-49组和UHMWPE组平均弹性模量分别为(5.72±0.16)Gpa、(11.48±0.12)Gpa、(6.24±0.38)Gpa和(8.36±0.09)Gpa,3种纤维的加强效果为S-Glass>Kevlar-49>UHMWPE,各组间均有显著差异(P<0.005)。结论 S-Glass纤维对聚合瓷的弹性模量加强效果最明显,UHMWPE纤维加强效果最弱;云纹干涉法可用于不同纤维加强聚合瓷弹性模量的比较研究。Objective To evaluate the strengthening effect of 3 types of fibers on the elastic mod- ulous of Solidex ceromer measured by moir6 interfereometery. Methods Three types of fibers including S-Glass, Kevlar-49 and UHMWPE, were added to reinforce the Solidex ceromer. Totally there were 4 groups of specimens including Solidex ceromer without fibers as the control group. Each group had 3 specimens. Raster was produced on the surface of sample and the strips of u and v field under 3-point bending load- ing were collected and the results were calculated by the computer. Then the data were analyzed with one- way analysis of variance. Results Significant increase in modulous were found for all fiber-reinforced groups in comparison to the unreinforced controls （P 〈 0.005）. The modulous of group controls, S-Glass, Kevlar-49 and UHMWPE,was （5.72±0.16） Gpa, （11.48±0.12） Gpa, （8.36±0.09） Gpa and （6.24 ±0.38） Gpa. The one-way analysis of variance showed that the results were significant（P〈0.005）. Con- clusion The strengthening effect of S-Glass fiber on the elastic modulous of Solidex ceromer is the best while the UHMWPE fiber has the weakest effect. The moire interfereometery can be used to compare the elastic modulous of ceromer strengthened by different types of fibers.

关 键 词：云纹干涉法 弹性模量 高强玻璃纤维 芳纶纤维 超高聚乙烯纤维 聚合瓷 

分 类 号：R783.1[医药卫生—口腔医学]