超细粉ZrO2增韧补强3D打印光敏树脂  

Ultrafine powder ZrO2 toughened and reinforced 3D printing photosensitive resin

作　　者：王凤芝 刘秀军[1,2] 张庆印[1,2] 张萌 WANG Feng-zhi;LIU Xiu-jun;ZHANG Qing-yin;ZHANG Meng(School of Chemistry and Chemical Engineering,Tianjin Polytechnic University,Tianjin 300387,China;State Key Laboratory of Hollow Fiber Membranes and Membrane Processes,Tianjin Polytechnic University,Tianjin 300387,China)

机构地区：[1]天津工业大学化学与化工学院,天津300387 [2]天津工业大学中空纤维膜材料与膜过程国家重点实验室,天津300387

出　　处：《热固性树脂》2019年第6期56-60,共5页Thermosetting Resin

基　　金：国家自然科学基金(21476172)。

摘　　要：采用酸化的偶联剂A151对超细粉ZrO2进行表面处理,并将其作为增强相改性3D打印双酚A环氧丙烯酸树脂。通过红外光谱分析证实了ZrO2成功接枝上含双键的有机链。在保证打印精度和打印速度的前提下,考察了ZrO2的用量对树脂力学性能和收缩率的影响,并通过扫描电子显微镜对断面形貌作了分析。结果表明,ZrO2的存在使断面裂纹发生偏转并沿不同平面传播,表现为韧性增加。当ZrO2的添加量质量分数为1.5%时,复合材料的拉伸强度为36.64 MPa,弯曲强度为147.85 MPa,分别较纯树脂基体提高了82.02%和31.2%,同时收缩率降低了72.62%,且制备的树脂的粘度为363 mPa·s,满足3D打印的要求。The ultrafine powder of ZrO2 was surface treated with an acidified coupling agent A151 and used as a reinforcing phase modified 3D printed bisphenol methacrylate acrylic resin.It was confirmed by infrared spectroscopy that ZrO2 was successfully grafted the organic chain containing a double bond.Under the premise of ensuring printing accuracy and printing speed,the effects of the amount of ZrO2 on the mechanical properties and shrinkage of the resin were investigated,and the cross-section morphology was analyzed by scanning electron microscopy.The results showed that the cross-section cracks were deflected and propagated along different planes at the presence of ZrO2,showing an increase in toughness.When the mass fraction of ZrO2 added was 1.5%,the tensile strength of the composite was 36.64 MPa,and the flexural strength was 147.85 MPa,which was 82.02%and 31.2% higher than that of the pure resin matrix,respectively.The shrinkage rate was reduced by 72.62%.And the prepared resin had a viscosity of 363 mPa·s,which was satisfied the requirements of 3D printing.

关 键 词：二氧化锆 超细粉 光敏树脂 3D打印 增韧 增强 收缩率 拉伸强度 弯曲强度 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术] TQ316.312[自动化与计算机技术—计算机科学与技术]