室温硫化硅橡胶改性与未改性的物理性能比较。

A comparison of the physical properties of a room temperature vulcanizing silicone modified and unmodified.

作者信息

Kouyoumdjian J, Chalian V A, Moore B K

出版信息

J Prosthet Dent. 1985 Mar;53(3):388-91. doi: 10.1016/0022-3913(85)90519-0.

Abstract

RTV silicone MDX 4-4210 unmodified and modified with the addition of 5%, 10%, and 15% 360 MF 100cs was tested for the following physical properties: tensile strength, ultimate elongation (ASTM D412 die C), tear resistance (ASTM D624, die C), and Shore A Durometer hardness (ASTM D2240). The initial mechanical properties of unmodified RTV silicone were superior to those of RTV silicone modified with 5%, 10%, and 15% 360 MF except for hardness. The value for each property measured was found to decrease linearly with the amount of 360 MF added. If additional softness is desired, it can be achieved with the addition of 360 MF to RTV silicone at the expense of decreased strength, elongation, and tear resistance. Even with the addition of 15% 360 MF the values for tear resistance and elongation were in the standard range. The tensile strength of unmodified RTV silicone fell below the accepted values.

摘要

对未改性的RTV硅橡胶MDX 4-4210以及添加了5%、10%和15% 360 MF 100厘沲的改性RTV硅橡胶进行了以下物理性能测试：拉伸强度、极限伸长率（ASTM D412 C型模具）、抗撕裂性（ASTM D624，C型模具）以及邵氏A硬度计硬度（ASTM D2240）。除硬度外，未改性RTV硅橡胶的初始机械性能优于添加了5%、10%和15% 360 MF的RTV硅橡胶。所测得的每种性能的值均随360 MF添加量的增加呈线性下降。如果需要额外的柔软度，可以通过向RTV硅橡胶中添加360 MF来实现，但会牺牲强度、伸长率和抗撕裂性。即使添加了15%的360 MF，抗撕裂性和伸长率的值仍在标准范围内。未改性RTV硅橡胶的拉伸强度低于公认值。