中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (51): 9617-9620.doi: 10.3969/j.issn.1673-8225.2010.51.026

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

三种颌面赝复硅橡胶耐臭氧老化性能的对比

韩  影1，赵铱民2，逯  宜1，邵龙泉3   

  1. 1西安交通大学口腔医院，陕西省西安市 710004； 2解放军第四军医大学口腔医学院，陕西省西安市 710032；3南方医科大学南方医院口腔科，广东省广州市  510515
  • 出版日期:2010-12-17 发布日期:2010-12-17
  • 通讯作者: 赵铱民，博士，教授，解放军第四军医大学口腔医学院，陕西省西安市 710032
  • 作者简介:韩影☆，女，1978年生，黑龙江省哈尔滨市人，汉族， 2007年解放军第四军医大学毕业，博士，主治医师，主要从事颌面赝复材料研究。 hanying@mail.xjtu.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(30471908)。

Comparison of anti-ozone aging properties of three silicone rubbers for maxillofacial prosthese

Han Ying1, Zhao Yi-min2, Lu Yi1, Shao Long-quan3   

  1. 1 College of Stomatology, Xi’an Jiaotong University, Xi’an  710004, Shaanxi Province, China; 2 College of Stomatology, the Fourth Military Medical University of Chinese PLA, Xi’an   710032, Shaanxi Province, China; 3 Department of Stomatology, Nanfang Hospital of Southern Medical University, Guangzhou   510515, Guangdong Province, China
  • Online:2010-12-17 Published:2010-12-17
  • Contact: Zhao Yi-min, Doctor, Professor, College of Stomatology, the Fourth Military Medical University of Chinese PLA, Xi’an 710032, Shaanxi Province, China
  • About author:Han Ying☆, Doctor, Attending physician, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, Shaanxi Province, China hanying@mail.xjtu.edu.cn
  • Supported by:

     the National Natural Science Foundation of China, No. 30471908*

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摘要：

背景：颜面部硅橡胶赝复体长期暴露于空气中，受到光、热、臭氧等外部因素的影响，会发生物理或化学变化，导致硅橡胶变色、发黏、变硬、变脆，物理机械性能逐步下降，表现为强度降低、弹性消失，最终导致失去使用价值。
目的：对比ZY-1、SY-1及A-2186三种赝复硅橡胶臭氧老化前后的机械性能，评价ZY-1硅橡胶的耐臭氧老化性能。
方法：按照GB/T 7762-1987《硫化橡胶耐臭氧老化试验静态拉伸试验法》中的规定，分别对3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。
结果与结论：经过臭氧老化后，ZY-1、A-2186及SY-1赝复硅橡胶拉伸强度、扯断伸长率以及撕裂强度均下降，而硬度和永久变形率升高；ZY-1赝复硅橡胶扯断伸长率、撕裂强度的老化百分变化率以及邵氏硬度明显小于SY-1赝复硅橡胶(P < 0.05)，与A-2186赝复硅橡胶接近(P > 0.05)。说明ZY-1赝复硅橡胶在臭氧老化作用下，可保持良好的弹性和硬度，具有良好的耐臭氧老化能力。

关键词: 硅橡胶, ZY-1赝复硅橡胶, 臭氧老化, 机械性能, 生物材料

Abstract:

BACKGROUND: Exposed in air for long time, maxillofacial silicone prosthese will be effected by many factors, such as light, heat and ozone. The effect of these factors will make the mechanical properties of prostheses be worse than before, which cause that silicone rubbers change color and become hard, crisp and sticky. The physical and mechanical properties gradually reduce, manifested as decreased strength and disappeared flexibility, eventually leading to loss of use value.
OBJECTIVE: To compare the mechanical properties of three silicone rubbers before and after ozone aging (ZY-1, SY-1, A-2186), and to evaluate the anti-ozone aging properties of ZY-1 silicone elastomer.
METHODS: The mechanical properties of three silicone rubbers were tested before and after ozone aging in accordance with GB/T 7762-1987 “Vulcanized rubber static tensile method of anti-ozone aging test”. Statistical analyses were done using a two-way analysis of variance.
RESULTS AND CONCLUSION: After ozone aging, the tensile strength, the elongation at break and tear resistance of three silicone rubbers reduced, while the hardness and permanent deformation rate increased. The percentages of elongation at break and tear resistance, as well as shore A hardness, of ZY-1 were significantly lower than that of SY-1 (P < 0.05), and similar to that of A-2186 (P > 0.05). ZY-1 addition-type silicone rubbers can maintain good flexibility and hardness, have reasonable anti-ozone aging properties.

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