Plastics . determination of viscosity ratio of polyamide resins in concentrated solution 塑料制品.濃縮溶液中聚酰胺樹脂的粘度比測定
Plastics - cellulose acetate in dilute solution - determination of viscosity number and viscosity ratio 塑料.稀溶液中的乙酸纖維素.粘度值和粘度率的測定
Plastics - cellulose acetate in dilute solution - determination of viscosity number and viscosity ratio iso 1157 : 1990 ; german version en iso 1157 : 1999 塑料.稀釋溶液中的乙酸纖維素.粘度值和粘度比的測定
In addition , a theoretical model was also developed to predict the width of the two - fluid hydrodynamically - focused stream for a given volumetric flow rate ratio , dynamic viscosity ratio of the two - fluid , and microchannel aspect ratio 而粒子混沌行為強度可藉由李亞普諾夫指數(shù)量化,因而找出其最佳切換頻率,此最佳切換頻率也經(jīng)由直接數(shù)值模擬方式被驗證。
2 . effect of the viscosity ratio , mterfacial adhesion , processing conditions and composition on the dispersing morphology and properties of pp / eoc blends was investigated . low viscosity ratio and high shear rate during processing were found to produce fine and uniform dispersion of eoc in pp matrix , while low viscosity ratio , high interfacial interaction , good fluidity of elastomer and high shear rate in molding process resulted in fibril dispersion , which afford a guide for controlling the morphology of pp / eoc blends 研究了粘度比、界面相互作用、加工條件和共混比例等因素對pp eoc體系分散形態(tài)和性能的影響,發(fā)現(xiàn)粘度比小和加工過程中剪切強度大有利于彈性體在基體中分散均勻細化;粘度比小、界面相互作用強、彈性體本身的流動性好及成型時受到的剪切應(yīng)力大,使彈性體相易變形,沿流動方向取向呈纖,闡明了各因素對形態(tài)影響的作用機制,這對pp eoc共混物的形態(tài)控制具有重要的指導(dǎo)作用。