氩气等离子体对自凝树脂材料吸水性和溶解性的影响(英文)  

Effects of Ar plasma treatment on water sorption and solubility of auto-polymerized acrylic resin

作　　者：张怀勤[1] 蒋春梅[1] 方江邻[2] 

机构地区：[1]南京医科大学口腔医学研究所,江苏省南京市210029 [2]南京大学现代分析中心,江苏省南京市210093

出　　处：《中国组织工程研究与临床康复》2008年第45期8977-8979,共3页Journal of Clinical Rehabilitative Tissue Engineering Research

基　　金：the Natural Science Foundation of Education Department of Jiangsu Province,No.06KJD320125~~

摘　　要：将自凝树脂材料制成直径为30mm,厚为2mm的圆片62块,2块作红外光谱图分析,60块作吸水率和溶解率试验。浸泡时间分别设定为1d,1周,1,6,12个月。每个浸泡时间均设对照组和实验组,每组6个标本。实验组标本作等离子体处理,设定处理功率为60W,处理时间为2min。所有标本在浸泡前、浸泡到预期时间后及干燥后称质量。计算吸水百分率和溶解百分率。结果显示自凝树脂材料表面经氩气等离子体处理后C-H结构减少;标本浸泡1个月时,实验组的吸水率低于对照组(P<0.05);标本浸泡1d,1周和1个月,实验组的溶解率低于对照组(P<0.05)。提示在1个月内,氩气离子体表面处理对自凝树脂材料的吸水率和溶解率有降低效果。A total of 62 disk-shaped specimens in the size of 30 mm （diameter） ×2 mm （layer thickness） were made with auto-polymerized acrylic resin （2 specimens for infrared spectrum comparison and 60 specimens for tests of water sorption and solubility）. Duration of Ar plasma application was 2 minutes and plasma power applied was 60 W. Storage intervals were 1 day, 1 week, 1 month, 6 months, and 12 months, separately. A control group and a corresponding experimental group were set for each storage interval, with 6 specimens per group. All specimens were weighted 3 times, i.e., initial weight; weigh after absorption of distilled water, and final weight after desiccation. Percentages of water absorption and solubility of auto-polymerized acrylic resin were calculated. Results revealed that after Ar plasma treatment, C-H structure of auto-polymerized acrylic resin was reduced; following l-month storage interval, water absorption percentage was significantly lower in the experimental group than in the control group; following 1-day, l-week, and 1-month storage interval, the experimental group exhibited significantly lower solubility of auto-polymerized acrylic resin, compared to the control group （P 〈 0.05）. These results indicated that within 1-month storage, Ar plasma treatment can decrease water sorption and solubility of auto-polymerized acrylic resin.

关 键 词：等离子体 树脂 吸水性 溶解性 

分 类 号：R318[医药卫生—生物医学工程]