三种颌面赝复硅橡胶耐热氧老化性能的对比测定  

Investigation of the anti-heat aging abilities of three silicone rubbers for maxillofacial prostheses.

作　　者：韩影[1] 赵铱民[2] 逯宜[1] 邵龙泉[3] 

机构地区：[1]西安交通大学口腔医院修复科,陕西西安710004 [2]第四军医大学口腔医学院,陕西西安710032 [3]南方医科大学南方医院口腔科,广东广州510515

出　　处：《临床口腔医学杂志》2011年第1期11-13,共3页Journal of Clinical Stomatology

基　　金：国家自然科学基金资助(30471908)

摘　　要：目的:对比研究ZY-1、SY-1及A-2186三种赝复硅橡胶热氧老化前后的机械性能,评价ZY-1硅橡胶的耐热氧老化性能。方法:在相同条件下分别对三种硅橡胶材料老化前后的机械性能进行测定,并对结果进行统计学分析。结果:ZY-1、A-2186和SY-1硅橡胶在热氧老化后,拉伸强度、扯断伸长率、撕裂强度以及硬度均呈现下降趋势,ZY-1热氧老化后性能变化百分率和A-2186无明显差异,ZY-1、A-2186硅橡胶的扯断伸长率、永久变形率(3 min后)、撕裂强度的老化百分变化率明显小于SY-1硅橡胶。结论:ZY-1加成型赝复硅橡胶具有良好的耐热氧老化能力。Objective：The purpose of this study was to evaluate the anti-heat aging abilities of new prosthetic silicone elastomer ZY-1,and to compare them with those of A-2186 and SY-1.Method：Mechanical properties before and after heat aging of ZY-1,A-2186 and SY-1 were determined and compared.Statistical analyses were done using a two-way analysis of variance（ANOVA）.Result：After heat aging,the tensile strength,elongation at break,tear strength,and the hardness of three elastomers all showed downtrend.The percentage changes in mechanical properties after aging was no significant difference between ZY-1 and A-2186.However the The percentage changes in elongation at break,permanent deformation and tear strength of ZY-1 and A-2186 were less than those of SY-1.Conclusion：ZY-1 addition-type silicone rubber processed good anti-heat aging abilities for use as a maxillofacial prosthetic material.

关 键 词：硅橡胶 颌面赝复材料 热氧老化 机械性能 

分 类 号：R783.1[医药卫生—口腔医学]