基于熔融沉积成型的ASA/OMMT复合材料的制备及性能  

Preparation and Properties of ASA/OMMT Composites Based on Fused Deposition Modeling

作　　者：林鸿裕 林少芬 肖荔人[2] LIN Hong-yu;LIN Shao-fen;XIAO Li-ren(School of Materials and Chemical Engineering,Liming Vocational University,Quanzhou 362000,China;Engineering Research Center of Polymer Green Recycling of Ministry of Education,Fuzhou 350007,China)

机构地区：[1]黎明职业大学材料与化学工程学院,福建泉州362000 [2]聚合物资源绿色循环利用教育部工程研究中心,福建福州350007

出　　处：《塑料工业》2020年第10期78-82,共5页China Plastics Industry

基　　金：福建省教育厅项目(JZ180900)。

摘　　要：以丙烯腈-苯乙烯-丙烯酸酯(ASA)和有机化蒙脱土(OMMT)为原料,通过熔融共混法制备了ASA/OMMT复合材料进行熔融沉积成型(FDM),利用热膨胀仪等设备对FDM试样的热性能、成型性能、流变性能和力学性能进行了分析。结果表明,OMMT能够降低试样的热膨胀系数,改善试样的弯曲程度和平均端角收缩率,使试样保持良好的尺寸稳定性。当OMMT含量为5%时,试样的收缩翘曲现象消失。加入OMMT后能够提高试样的储能模量,使熔体呈现以弹性为主的流变行为,且表现为"类固"性质增强。OMMT能够提高试样的拉伸强度,但会降低试样的冲击强度。Acrylonitrile-styrene-acrylic(ASA)/organic montmorillonite(OMMT)composites were prepared by fused deposition modeling(FDM)with ASA and OMMT as main materials.The thermal performance,formability,rheological behavior and mechanical properties of FDM samples were investigated by thermal dilatometer and so on.The results show that OMMT could reduce thermal expansion coefficient,curvature and average end angle shrinkage of FDM samples.The FDM samples could maintain excellent dimension stability.The shrinkage and warpage of FDM samples disappear when the content of OMMT is 5%.The addition of OMMT could improve storage modulus of FDM samples,which enhance melt shear-thinning behavior.In addition,FDM samples show an elastic rheological behavior and"sold like"property.The tensile strength of FDM samples increases with the introduction of OMMT,however,the impact strength of FDM samples decreases with the addition of OMMT.

关 键 词：熔融沉积成型 丙烯腈-苯乙烯-丙烯酸酯 有机化蒙脱土 

分 类 号：TQ320.663[化学工程—合成树脂塑料工业]