CAJ | 학술논문

将自凝树脂材料制成直径为30 mm,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1 d,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1 d,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.
장자응수지재료제성직경위30 mm,후위2mm적원편62괴,2괴작홍외광보도분석,60괴작흡수솔화용해솔시험.침포시간분별설정위1 d,1주,1,6,12개월.매개침포시간균설대조조화실험조,매조6개표본.실험조표본작등리자체처리,설정처리공솔위60W,처리시간위2min.소유표본재침포전、침포도예기시간후급간조후칭질량.계산흡수백분솔화용해백분솔.결과현시자응수지재료표면경아기등리자체처리후C-H결구감소;표본침포1개월시,실험조적흡수솔저우대조조(P<0.05);표본침포1 d,1주화1개월,실험조적용해솔저우대조조(P<0.05).제시재1개월내,아기리자체표면처리대자응수지재료적흡수솔화용해솔유강저효과.
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-polymefized acrylic resin were calculated. Results revealed that after Ar plasma treatment, C-H structure of auto-polymerized acrylic resin was reduced; following 1-month storage interval, water absorption percentage was significantly lower in the experimental group than in the control group; following 1-day, 1-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.