本文選題：氰基丙烯酸鹽 + 石膏　； 參考：《華西口腔醫(yī)學雜志》2014年03期

【摘要】：目的探索一種用氰基丙烯酸鹽強化石膏材料的簡單方法,并研究氰基丙烯酸鹽溶液的濃度對牙科石膏材料強度的影響。方法將標準石膏樣本制備成35 mm×4 mm×4 mm的長條形;將氰基丙烯酸正丁酯制成20%和30%的溶液并測定溶液黏度。將干燥后的牙科石膏樣本浸入氰基丙烯酸正丁酯溶液中8 h,再置于室溫下干燥。檢測樣品的彈性模量、斷裂韌性、抗壓強度、布氏硬度、雙軸強度,所得的數(shù)據(jù)采用OriginPro 8軟件進行統(tǒng)計分析。結果黏性測定表明該溶液為牛頓流體,48 h內(nèi)黏性小幅上升,但在室溫下仍接近水,可用于浸潤石膏,加強其強度。浸潤氰基丙烯酸鹽溶液的石膏具有良好的理化性能,石膏的雙軸強度、斷裂韌性、抗壓強度和布氏硬度分別提高了39%、30%、63%和18%。結論氰基丙烯酸鹽可以提高石膏模型強度,具有潛在的臨床應用價值。
[Abstract]:Objective to explore a simple method for strengthening gypsum materials with cyanoacrylate and to study the effect of the concentration of cyanoacrylate solution on the strength of dental gypsum materials. Methods the standard gypsum samples were prepared into 35 mm 脳 4 mm long strips and 20% and 30% solutions of n-butyl cyanoacrylate were prepared and the viscosity of the solution was determined. The dried dental gypsum samples were immersed in butyl cyanoacrylate solution for 8 h and then dried at room temperature. The elastic modulus, fracture toughness, compressive strength, Brinell hardness and biaxial strength of the samples were tested. The data were analyzed by OriginPro 8 software. Results the viscosity test showed that the viscosity of the solution increased slightly within 48 h, but it was still close to water at room temperature, which could be used to infiltrate gypsum and strengthen its strength. The gypsum of the impregnated cyanoacrylate solution has good physical and chemical properties. The biaxial strength, fracture toughness, compressive strength and Brinell hardness of the gypsum are increased by 39% 30% and 18% respectively. Conclusion Cyanoacrylate can improve the strength of gypsum model and has potential clinical application value.
【作者單位】： 成都市第一人民醫(yī)院口腔科;溫州醫(yī)科大學附屬口腔醫(yī)院口腔修復科;
【基金】：國家自然科學基金資助項目(81371182,81271186) 浙江省自然科學基金資助項目(LY13H140005,Y2110400) 浙江省衛(wèi)生廳一般科研基金資助項目(2013KYA124)
【分類號】：R783.1

【共引文獻】

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本文編號：1935209