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首页> 外文期刊>Journal of Applied Polymer Science >Processing Behavior and Mechanical Properties of Autopolymerizing Hypoallergenic Denture Base Polymers
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Processing Behavior and Mechanical Properties of Autopolymerizing Hypoallergenic Denture Base Polymers

机译：自聚合低变应原性义齿基料聚合物的加工行为和力学性能

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摘要

Driven by the phenomenon of increasing irritations and allergic reactions of dental prosthesis carriers preferably due to residual methyl methacrylate monomer in conventional dental materials, autopolymerizing hypoallergenic denture base polymers were prepared as two-component materials in the shape of paste/paste- or powder/liquid systems. The processing behavior of these materials was investigated regarding the processing and solidification times also in dependence on the polymerization catalyst concentration, whereas the whole processing and curing characteristics and the final polymer properties were evaluated by dynamic mechanical analysis in shear mode in the temperature range from -145 degrees C to 200 degrees C. The mechanical properties of the hypoallergenic denture base polymers were validated regarding stiffness (flexural modulus E') and fracture toughness (maximum factor of loading intensity Kmax, total work of fracture Wf) and the effects of monomer composition, kind of resin powder, impact modification by the liquid component, and water immersion on these properties were investigated. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41378.
机译：最好是由于常规牙科材料中残留的甲基丙烯酸甲酯单体，由于假牙载体的刺激性和过敏反应增加的现象的驱动，将自聚合的低过敏性义齿基料聚合物制成糊状/糊状或粉状/液体状的两组分材料系统。还根据聚合催化剂的浓度对这些材料的加工行为进行了研究，涉及加工和固化时间，而整个加工和固化特性以及最终聚合物的性能则通过动态力学分析在剪切模式下于-的温度范围内进行评估。在145摄氏度至200摄氏度之间。验证了低过敏性义齿基托聚合物的机械性能，包括刚度（挠曲模量E'）和断裂韧性（最大载荷强度Kmax，断裂总功Wf）以及单体组成的影响。研究了树脂粉末的种类，液体组分的冲击改性和水浸在这些性能上。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41378。

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