Herfort T W, Gerberich W W, Macosko C W, Goodkind R J
J Prosthet Dent. 1977 Oct;38(4):396-404. doi: 10.1016/0022-3913(77)90093-2.
(1) Some elastomeric impression materials (Omniflex and Impregum) exhibited extreme shear thinning properties. This property was considered useful and these materials can be considered all-purpose. (2) The use of impression materials in syringing applications should not be precluded simply because the substances are thick or heavy during spatulation. A tenfold reduction in viscosity with increasing shear rate was found for three of the materials tested. (3) Viscosity characteristics of the impression rubbers were linked to filler content. (4) The viscosity rise during cross-linking was monitored for various impression products. It was found that each manufacturer's specifications of the length of time for syringing were relatively accurate.
(1) 一些弹性体印模材料（Omniflex和Impregum）表现出极高的剪切变稀特性。该特性被认为是有用的，这些材料可被视为通用型材料。(2) 印模材料在注射应用中的使用不应仅仅因为在调拌时物质浓稠或沉重而被排除。在所测试的三种材料中发现，随着剪切速率增加，粘度降低了十倍。(3) 印模橡胶的粘度特性与填料含量有关。(4) 对各种印模产品交联过程中的粘度上升进行了监测。发现每个制造商对注射时间长度的规格相对准确。
