放疗固定用的聚氯乙烯热塑膜特性分析及应用效果观察  

Characteristics analysis and application effect of polyvinyl chloride thermoplastic film for radiotherapy fixation

作　　者：钟善刚 向非[2] ZHONG Shangang;XIANG fei(Radiotherapy Center,Oncology Department,Anzhou District People’s Hospital,Mianyang 622651,Sichuan China;Mianyang Cancer Hospital,Mianyang 621000,Sichuan China)

机构地区：[1]绵阳市安州区人民医院,四川绵阳622651 [2]绵阳市肿瘤医院,四川绵阳621000

出　　处：《粘接》2024年第12期116-119,共4页Adhesion

摘　　要：为提高放疗固定效果,试验使用不同的增塑剂添加量,以软化点、拉伸性能和冲击性能为指标优化聚氯乙烯热塑膜材料性能,并观察这种聚氯乙烯塑料膜在放疗固定中的应用效果。结果表明,当增塑剂邻苯二甲酸二正辛酯(DOP)添加量从3%增至21%时,热塑膜材料软化点从71.5℃迅速降至42.2℃。当增塑剂环氧甘油三酸酯(ESO)添加量从1%增至6%时,热塑膜材料软化点从57.9℃降至47.8%。并且热塑膜材料的力学性能与各增塑剂添加量呈负相关关系,因此优选增塑剂DOP添加量为9%,优选ESO添加量为2%或者3%。经临床回顾性分析,聚氯乙烯热塑膜材料可以改善患者在放疗时的摆位线性误差以及旋转误差,有着良好的临床效果。To improve the fixation effect of radiotherapy,different plasticizer dosages were used to optimize the properties of PVC thermoplastic film based on the softening point,tensile properties and impact properties,and the application effect of PVC plastic film in radiotherapy fixation was observed.The results showed that when the amount of plasticizer DOP increased from 3%to 21%,the softening point of the thermoplastic film material rapidly de⁃creased from 71.5℃to 42.2℃.When the amount of plasticizer epoxy triglyceride(ESO)added increased from 1%to 6%,the softening point of the thermoplastic film material decreased from 57.9℃to 47.8%.And the mechanical properties of thermoplastic film materials were negatively correlated with the amount of plasticizers added.Therefore,the optimal amount of plasticizer DOP added was 9%,and the optimal amount of ESO added was 2%or 3%.Through clinical retrospective analysis,PVC thermoplastic film material can improve the linear positioning error and rotation error of patients during radiotherapy,and has good clinical effects.

关 键 词：增塑剂 聚氯乙烯 热塑膜 软化点 力学性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]