吉林大学学报(医学版)

• 基础研究 • 上一篇    下一篇

氩气低温等离子体处理对口腔修复用PEEK复合材料粘结性能的影响

周莉1,钱玥彤*,朱晔2,甘抗1,郭晶1,刘红1   

  1. 1.吉林大学口腔医院综合治疗科,吉林 长春 130021;2.吉林大学特种工程塑料教育部工程研究中心,吉林 长春 130012
  • 收稿日期:2013-10-24 出版日期:2014-03-28 发布日期:2014-05-28
  • 通讯作者: 刘 红(Tel:0431-85579506,E-mail:jdliuhong@163.com) E-mail:jdliuhong@163.com
  • 作者简介:周莉(1987-),女,山东省烟台市人,在读医学硕士,主要从事口腔修复材料的基础研究。
  • 基金资助:

    吉林省科技厅自然科学基金资助课题 (201215051);吉林省高技术产业处产业技术研究与开发项目资助课题(JF2012C009-2)

Influence of low temperature plasma treatment on  bonding propertyof PEEK composite material for prosthodontics

ZHOU Li1,QIAN Yue-tong*,ZHU Ye2,GAN Kang1,GUO Jing1, LIU Hong1   

  1. 1. Department of Comprehensive Treatment,Stomatology Hospital,Jilin University,Changchun 130021, China;2.Engineering Research Centre of High Performance Plastics,Ministry of Education,Jilin University,Changchun 130012,China
  • Received:2013-10-24 Online:2014-03-28 Published:2014-05-28

摘要:

目的:探讨氩气低温等离子体处理对聚醚醚酮(PEEK)及其复合材料剪切强度的影响,阐明PEEK及其复合材料的粘结机制。方法:将制备的纯PEEK作为对照组,PEEK复合材料作为实验组。将对照组和实验组的试件分别进行0、 5、 15和25  min氩气低温等离子体表面处理(等离子0、5、15和25 min组)。扫描电镜(SEM)观察试件经过处理后表面微观形貌变化。将处理后的试件与RelyXTM Unicem进行粘结,37℃水浴24 h后检测试件的剪切强度,体视显微镜下评价其破坏模式。结果:经过氩气低温等离子体处理后,各组试件表面可见不同程度的凸状沉淀物和犁沟。对照组试件经过低温氩气等离子体处理5 min后,剪切强度值比等离子0 和15  min组明显升高(P<0.01);等离子25 min组试件的剪切强度值与等离子5 min组比较差异无统计学意义(P>0.05)。实验组试件的剪切强度值,等离子5 min组低于15和25 min组(P<0.05),等离子15 min与25 min组的比较差异无统计学意义(P>0.05)。实验组中等离子15 min组试件的剪切强度值明显高于对照组(P<0.05),其他各组之间比较差异无统计学意义(P>0.05)。各组试件的破坏模式均主要以界面破坏为主。结论:氩气低温等离子体处理能有效地增强PEEK及其复合材料的剪切强度,随着处理时间的延长,剪切强度增大。试件表面硬度不同导致了纯PEEK及其复合材料剪切强度变化趋势的不一致。

关键词:  , 等离子, 聚醚醚酮, 表面处理, 粘结, 微观形貌

Abstract:

Abstract:Objective  To investigate the influence of low temperature argon plasma in the shear strength  polyetheretherketone (PEEK) and PEEK composites, and to clarify the bonding mechanism of PEEK and PEEK composites.Methods The specimens were divided into control group (PEEK) and experiment group (PEEK composites).The surfaces of the specimens were treated with low temperature  argon plasma for 0,5,15,and 25 min (plasma 0,5,15,and 25 min groups).The surface microstructure of the specimens after  treated with plasma was measured by scanning electronic microscope (SEM).Then the  RelyXTM Unicem was bonded onto the specimens.After 24 h at 37°C distilled water storage,the shear strength of the specimens was measured;the  failure modes were assessed by stereomicroscope.Results The grooves,cracks,and deposits appeared on the surfaces of the specimens in plasma 5,15,and 25 min groups after treated with low temperature  argon plasma.The shear strength of the specimens in control group was significantly increased in plasma  5 min group compared with plasma  0 and 15 min groups (P<0.01).The shear  strength of the specimens in plasma  25 min group had no significant differences compared with plasma  5 min group (P>0.05).In experiment group,the shear  strength of the specimens in plasma 5 min group was decreased compared with plasma 15 and 25 min groups (P<0.05).The shear  strength of the specimens had no significant difference between plasma 15 and 25 min groups (P>0.05).The shear  strength of the specimens in  control group was statistically lower than that in  experiment group at 15 min (P<0.05).There were no significant differences of shear strength among the other groups (P>0.05).The main failure mode of the specimens was the interface damage in all groups.Conclusion Low temperature argon plasma treatment can enhance the bond strength of PEEK and PEEK composites.The shear strength of the specimens  is increased with the increasing of treatment time.The different hardness of the specimen surfaces results in the inconsistencies of the shear  strength between PEEK and PEEK composites.

Key words: plasma, polyetheretherketone, surface treatment, bonding, microstructure

中图分类号: 

  • R783.1