基于响应面法的DLP光敏树脂氧化铝增强成型工艺优化  

Forming Process Optimization of Alumina Reinforced DLP Photosensitive Resin Based on Response Surface Method

作　　者：郭小锋[1] 李思卿 崔陆军[1] 王坦 GUO Xiaofeng;LI Siqing;CUI Lujun;WANG Tan(Zhongyuan University of Technology,Zhengzhou 450000,China)

机构地区：[1]中原工学院机电学院,河南郑州450000

出　　处：《塑料工业》2023年第3期96-101,共6页China Plastics Industry

基　　金：国家自然科学基金项目(51705545);河南省科技攻关项目(222102220058)。

摘　　要：为了研究填充纳米氧化铝颗粒对光敏树脂DLP光固化3D技术对成型试件的成型误差、拉伸强度及打印时间的影响,首先采用单因素试验分别研究了曝光时间、打印层厚及氧化铝含量对成型试件的影响,运用响应面Box-Behnken试验分析研究得出了成型误差、拉伸强度和打印时间的二次回归模型,并对其工艺参数进行优化。结果显示,曝光时间对制件的成型误差的影响最大,打印层厚对拉伸强度和打印时间的影响均为最大。由响应面法预测最优值为曝光时间3 s,打印层厚0.07 mm,纳米氧化铝质量分数5%,在此参数下,成型试件的成型误差为0.19 mm,拉伸强度为59.37 MPa,打印时间为16 min,与理论预测值接近,优化结果可靠。In order to study the effect of filling nano-alumina particles on the molding error,tensile strength and printing time of photosensitive resin DLP photocurable 3D technology,firstly,the effects of exposure time,printing layer thickness and alumina content on the molded specimen were studied by single factor experiment.Though using the form error,tensile strength and printing time of the response surface Box-Behnken test that a quadratic regression model of molding error was obtained.The process parameters were optimized.According to the survey,the exposure time has the greatest impact on the molding error,and the printing thickness has the greatest impact on the tensile strength and printing time.The optimum value predicted by response surface method is exposure time 3 s,print layer thickness 0.07 mm,nano-alumina 5%by mass fraction.The overall molding error of the formed specimen obtained by this process parameter is 0.19 mm,tensile strength is 59.37 MPa,print time is 16 min,it is close to the theoretical prediction and the optimal result is reliable.

关 键 词：氧化铝纳米颗粒 光敏树脂 响应面法 成型工艺 

分 类 号：TB332[一般工业技术—材料科学与工程]