Study On The Rheological Properties Of Peach Gum

Peach gum (also known as balsam) is the peach [Prunus persica (L.) Batsch] or hickory [Prunus davi-diana (Carr.) Franch] and other Rosaceae trunk by mechanical injury (such as insect bites, cuts, etc.) or after a translucent gum pathogenic substances secreted, the main component of the polysaccharide and amino acid composition. By studying the rheological changes of peach gum, gum provide a theoretical basis for the peach in traditional Chinese medicine processing. The research results were as follows:(1) Researching the different colors, different sizes peach gum of microscopic state of the rheological properties of the corresponding by motic microscope camera system and ARES,the results as the follows:1) Peach gum particle characteristics have a very obvious inherent relationships with rheological properties. The particles characteristics of peach gum are abundant, but there are some differences between the six kinds of plastic particles in their rheological properties because of the color, and particle size. The apparent viscosity and complex viscosity of brown peach gum particles are larger than plural yellow peach gum particles; The apparent viscosity and complex viscosity of larger particles peach gum are higher than smaller particles peach gum; The effect of temperature on apparent viscosity and complex viscosity of larger particles of peach gum colloid is more obvious than smaller of particles peach gum.The suggestion is that establishing classification using specification and fitting for the processing technology of system and using the peach gum’s color and size as the index.2) There are some obvious internal relations between the synergistic ability of the mixture of peach gum and qirx zil with their concentration. The synergistic ability of the mixture of light yellow peach gum and qirx zil is better and the mixed character of them is more stable with the same concentration; The synergistic ability of milky mixture is better and the mixed character of it is more stable with the same color of peach gum. The synergistic ability of the mixture is better and the mixed character of the mixture it is more stable when the proportion of mixed liquor and qirx zil is for5to1in tawny group of mixture. The light yellow group has the same character with the tawny group which is that the more peach gum content in the mixture, coordination ability of the mixture of peach gum and qirx zil is better, and more stable.(2) Observing the mixture of peach gum and qirx zil color and form and measuring its rheological properties by using the peach gum and qirx zil color as the experimental material and electrothermal blowing, FW80high-speed universal grinder and ARES.The results show:1) The rheological properties of the mixture of peach gum and qirx zil are diversiform.Plural viscosity (h*/P) can represent the viscoelastic properties of polymer fluid..Plural viscosity is more higher and more stable, the coordinated ability of mixture is more synergistic. Plural viscosity can present a downward trend the reducing of concentration in same color. The correlation equation for the complex viscosity of the mixture of tawny peach gum and qirx zil with temperature changes is:y=0.0358x3-0.3316x2+0.8827x-0.0981,R2=0.6968;The correlation equation for the complex viscosity of the mixture of light yellow peach gum and qirx zil with temperature changes is y=0.0205x3-0.1722x2+0.4183x+0.1903,R2=0.8897.2) The rheological properties of the mixture of peach gum and qirx zil Can be expressed in mathematical equations.The correlation equation for the dynamic viscosity of the mixture of tawny peach gum and qirx zil with temperature changes is:y=0.0269x3-0.2569x2+0.6892x-0.1705,R2=0.9823; The correlation equation for the dynamic viscosity of the mixture of light yellow peach gum and qirx zil with temperature changes is y=-0.0110x3+0.1149x2-0.363lx+0.5600,R2=0.9667.Imaginary viscosity (h"/P) associated with dynamic modulus, represent the elastic contribution, is a measure of the elastic and storage energy,there is little effect on the synergistic ability of the mixture of peach gum and qirx zil.