發(fā)布時間：2018-05-31 12:56

  本文選題：聚醚醚酮 + 表面處理　； 參考：《昆明醫(yī)科大學(xué)》2017年碩士論文

【摘要】：聚醚醚酮及其復(fù)合物因良好的物理機(jī)械性能、美學(xué)性能、穩(wěn)定的化學(xué)性能,可靠的生物安全性以及潛在的抗菌性,成為最有潛力替代傳統(tǒng)金屬、陶瓷材料的新型牙科材料。然而,聚醚醚酮極其穩(wěn)定的化學(xué)性能導(dǎo)致其粘接性能的低下。目前表面噴砂及濃硫酸酸蝕被絕大多數(shù)學(xué)者認(rèn)為是提升聚醚醚酮粘接性能的有效方法,但是噴砂或酸蝕后是否會降低材料的強(qiáng)度是影響修復(fù)體使用壽命的重要因素。[目的]對PEEK(BioHPP)試件進(jìn)行表面噴砂或濃硫酸酸蝕處理。通過三點(diǎn)彎曲強(qiáng)度測試評價(jià)不同表面處理后PEEK試件的強(qiáng)度。用游標(biāo)卡尺測量各組試件表面處理前后的長度、寬度及厚度,通過試件長、寬、厚的變化評價(jià)表面處理對PEEK試件尺寸的影響。并用掃描電子顯微鏡觀察不同表面處理后PEEK的表面微觀形貌,以分析表面處理對試件強(qiáng)度及尺寸影響的機(jī)理。[方法]用CAD/CAM技術(shù)制作規(guī)格為15mm×2mm×1mm的PEEK(BioHPP)試件48個。打磨拋光后在酒精中超聲清洗10分鐘,無油空氣吹干。試件隨機(jī)分為8組,分別是NT組(未處理),S-120組(0.2MPa120μm噴砂),S-50 組(0.2MPa50μm 噴砂),S-250 組(0.2MPa250μm 噴砂),S-0.7組(0.7MPa120μm 噴砂),AE-60 組(98%濃硫酸酸蝕 60s),AE-120 組(98%濃硫酸酸蝕120s),AE-300(98%濃硫酸酸蝕300s)。在進(jìn)行表面處理前,測量并記錄各組試件的長、寬、厚。處理完成后,從各實(shí)驗(yàn)組中隨機(jī)抽取一個試件進(jìn)行掃描電鏡觀察,其余的試件則進(jìn)行三點(diǎn)彎曲強(qiáng)度測試。在彎曲強(qiáng)度測試前對各組試件進(jìn)行長、寬、厚的測量并記錄。用SPSS軟件對實(shí)驗(yàn)數(shù)據(jù)進(jìn)行統(tǒng)計(jì)分析,檢驗(yàn)其差異是否具有統(tǒng)計(jì)學(xué)意義。[結(jié)果]通過SEM觀察發(fā)現(xiàn),試件經(jīng)處理后其表面形貌發(fā)生了變化,呈現(xiàn)出不同程度的裂隙、凹坑或孔洞。通過三點(diǎn)彎曲測試發(fā)現(xiàn),與未處理組相比,經(jīng)噴砂或濃硫酸處理后試件強(qiáng)度均有所下降(P0.05)。0.2MPa壓力下,50μm、120μm、250μm噴砂處理組間的彎曲強(qiáng)度沒有統(tǒng)計(jì)學(xué)差異(P0.05),120μm粒度噴砂,0.7MPa壓力組試件的強(qiáng)度低于0.2MPa壓力組(P0.05)。對于濃硫酸酸蝕處理組,酸蝕60s、120s、300s后試件的彎曲強(qiáng)度無統(tǒng)計(jì)學(xué)差異(P0.05)。通過游標(biāo)卡尺測得的試件處理前后尺寸發(fā)現(xiàn),經(jīng)噴砂或酸蝕處理后各組試件的長度與處理前無統(tǒng)計(jì)學(xué)差異(P0.05),S-0.7組處理后的寬度較處理前有所增加(P0.05),其余各組的寬度與處理前無統(tǒng)計(jì)學(xué)差異(P0.05),S-250組和S-0.7組的厚度較處理前有所減少(P0.05),而AE-300組的厚度較處理前有所增加(P0.05),其余各組的厚度與處理前無統(tǒng)計(jì)學(xué)差異(P0.05)。[結(jié)論]1.氧化鋁顆粒噴砂或98%濃硫酸酸蝕處理均對PEEK試件的彎曲強(qiáng)度有顯著影響,處理組的試件彎曲強(qiáng)度與未處理組相比有顯著的下降。2.對于噴砂處理的PEEK而言,在其他條件相同的情況下,砂粒粒徑大小的變化對PEEK的彎曲強(qiáng)度無顯著影響;而在相同粒徑的條件下,增大噴砂的壓力將會造成PEEK試件彎曲強(qiáng)度的顯著下降。3.98%濃硫酸酸蝕會降低PEEK試件的彎曲強(qiáng)度,但酸蝕時間的長短對PEEK的彎曲強(qiáng)度無明顯影響。4.一定條件的噴砂或酸蝕處理會造成PEEK試件尺寸的改變。對于噴砂的試件,在較大粒徑或較大壓力下噴砂會造成試件厚度的減少,而較大的壓力還會使寬度增加,壓力對尺寸的改變更明顯;98%濃硫酸酸蝕時間過長則會增加PEEK試件的厚度。
[Abstract]:Peek and its complexes have become the most potential new dental materials to replace traditional metal and ceramic materials because of their good physical and mechanical properties, aesthetic properties, stable chemical properties, reliable biological safety and potential antibacterial properties. However, the extremely stable chemical properties of PEEK lead to low adhesive properties. Surface sandblasting and sulfuric acid etching are considered as an effective method to improve the bonding properties of PEEK, but whether the strength of materials is reduced after sand blasting or etching is an important factor affecting the service life of the restorations. [Objective] to make surface sand or concentrated sulfuric acid etching treatment for PEEK (BioHPP) specimens. Through three point bending strength The strength of PEEK specimen after different surface treatment was tested and evaluated. The length, width and thickness of the specimens before and after surface treatment were measured with vernier caliper. The effect of surface treatment on the size of PEEK specimen was evaluated by the change of length, width and thickness of the specimen. The surface micromorphology of PEEK after different surface treatment was observed by scanning electron microscope. The mechanism of the influence of surface treatment on the strength and size of the specimen. [method] 48 PEEK (BioHPP) specimens of 15mm x 2mm x 1mm were made with CAD/CAM technology. After polishing and polishing, the samples were cleaned by ultrasonic for 10 minutes and no oil air was blown dry. The specimens were randomly divided into 8 groups, namely, NT group (not in place), S-120 group (0.2MPa120 micron m sandblasting), S-50 group (0.2MPa50 mu) Sand spraying), group S-250 (0.2MPa250 mu m sandblasting), group S-0.7 (0.7MPa120 mu m sandblasting), AE-60 group (98% concentrated sulfuric acid etching 60s), AE-120 group (98% concentrated sulfuric acid etching 120s), AE-300 (98% concentrated sulfuric acid etching 300s). Before the surface treatment, the length, width and thickness of each group were measured and recorded. After the treatment was completed, one sample was randomly selected from the experimental groups. Scanning electron microscope observation, the rest of the specimens were tested for three points bending strength. Before the bending strength test, the length, width and thickness of the specimens were measured and recorded. The statistical analysis of the experimental data was carried out by SPSS software to test whether the difference was statistically significant. [results] the surface morphology of the specimen after the treatment was observed through the SEM observation. There were different degrees of cracks, pits or holes. Through three point bending test, it was found that compared with the untreated group, the strength of the specimen after sand blasting or concentrated sulfuric acid treatment decreased (P0.05).0.2MPa pressure, 50 m, 120 mu m, and 250 mu m treatment group had no statistical difference (P0.05), 120 micron m granularity spraying, 0. The strength of the 7MPa pressure group was lower than that of the 0.2MPa pressure group (P0.05). For the concentrated acid etching treatment group, the bending strength of the specimens after the etching of 60s, 120s and 300s was not statistically different (P0.05). There was no statistical difference between the length of the specimens after the treatment of the test pieces obtained by the vernier caliper (P0.05) and before the treatment (P0.05) (P0.05). The width of the S-0.7 group was increased (P0.05). The width of the other groups was not statistically different from that before treatment (P0.05), the thickness of the S-250 and S-0.7 groups decreased (P0.05), while the thickness of the AE-300 group increased (P0.05), and the thickness of the other groups was not statistically different from that before treatment (P0.05). [Conclusion] 1. alumina particle sandblasting or 98% concentrated sulfuric acid etching treatment have significant influence on the bending strength of PEEK specimens. The bending strength of the treated group is significantly lower than that of the untreated group. For the PEEK of the sand blasting treatment, the change of the particle size of the sand particles has no significant effect on the bending strength of PEEK under the same conditions. Under the same particle size conditions, increasing the pressure of sand blasting will cause a significant decrease in the bending strength of the PEEK specimen and.3.98% concentrated sulfuric acid etching will reduce the bending strength of the PEEK specimen, but the length of the etching time has no obvious effect on the bending strength of the PEEK. The size of PEEK specimen will be changed by the sand blasting or etching treatment of.4. conditions. Sand spraying will reduce the thickness of the specimen under the larger particle size or larger pressure, and the larger pressure will increase the width and the change of the pressure to the size, and the thickness of the PEEK specimen will be increased by the long etching time of the 98% concentrated sulfuric acid.
【學(xué)位授予單位】：昆明醫(yī)科大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：R783.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 甘抗;劉秀菊;宋效慶;牛德利;劉紅;;氮?dú)獾入x子體注入對聚醚醚酮口腔生物材料粘結(jié)性能的影響[J];現(xiàn)代口腔醫(yī)學(xué)雜志;2016年02期

2 張書香;蔣圣俊;李輝;趙明強(qiáng);李杰;;磺化聚醚醚酮膜的制備和性能研究進(jìn)展[J];濟(jì)南大學(xué)學(xué)報(bào)(自然科學(xué)版);2009年01期

3 陳宇;陳德玉;楊立利;郭永飛;何志敏;楊海松;田海軍;;聚醚醚酮頸椎椎間融合器的臨床應(yīng)用及療效評價(jià)[J];中國矯形外科雜志;2006年23期

4 李欽奉;噴砂技術(shù)及其表面清理效率的研究[J];中國修船;2000年03期

5 黃祥瑞;塑料防腐蝕應(yīng)用 第一講 塑料聚合物的腐蝕機(jī)理[J];腐蝕與防護(hù);1997年06期

6 李成賢;噴砂在零件表面處理中的應(yīng)用[J];材料保護(hù);1994年08期

7 柳秉毅,程曉農(nóng);韌性金屬材料沖蝕磨損機(jī)理的研究[J];江蘇工學(xué)院學(xué)報(bào);1992年02期

8 李文發(fā);SBS改性PP材料在酸堿鹽介質(zhì)中的耐腐蝕性能研究[J];北京化工學(xué)院學(xué)報(bào)(自然科學(xué)版);1988年04期

相關(guān)博士學(xué)位論文 前2條

1 翟建明;金屬材料經(jīng)硫化氫腐蝕后的疲勞可靠性研究[D];北京工業(yè)大學(xué);2013年

2 馮益華;新型陶瓷噴砂嘴的研究開發(fā)及其沖蝕磨損機(jī)理研究[D];山東大學(xué);2003年

相關(guān)碩士學(xué)位論文 前5條

1 林曦;酸蝕后鈦表面理化性能研究[D];南方醫(yī)科大學(xué);2014年

2 劉剛;含砂氣流對玻璃鋼的沖蝕磨損規(guī)律研究[D];合肥工業(yè)大學(xué);2013年

3 呂海寶;玻璃鋼在海洋環(huán)境下的腐蝕機(jī)制和性能演變規(guī)律[D];哈爾濱工業(yè)大學(xué);2006年

4 董剛;材料沖蝕行為及機(jī)理研究[D];浙江工業(yè)大學(xué);2004年

5 熊芳;噴砂對全瓷底層材料的作用[D];四川大學(xué);2003年

，

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