The Weifang Tainuo chemical industry Limited company is located in “the world kite” - - Weifang, south near the rubber Jinan railroad, north depends on 309 federal highways, the blue silver highway, the geographical position is superior, the traffic conditions are convenient. in 2006 sets up with joint forces by the original Shandong four stars in the bowl of the big dipper specialized team, is domestic devotes to the development green environmental protection safety product for the mission specialty company.
Living during the twenty-first century, melamine becomes a necessary element in our daily life. Melamine is an important nitrogen heterocycle organic chemical material, it presents alkalescence and reacts with various acidums to generate melamine salt. It can be used to manufacture cooking utensils,
Melamine is a chemical used to make plastic tableware, cups, and other tableware. Compared with standard plastic, it makes tableware feel harder and more durable. Melamine tableware was popular when it came out in the 1950s and 1960s. These melamine dinner plates are rich in color and pattern, diver
Melamine is a chemical compound with numerous industrial uses, including the production of plastics, dishware, kitchenware, commercial filters, laminates, adhesives, molding compounds, coatings, and flame retardants. Melamine is an important nitrogen heterocycle organic chemical material, it present
Tainuo Chemical always focus on chemicals and keep researching and supplying chemicals for our customers .Now we will supply you with new series chemical: Oxalic Acid
Views:29 Author:艾彩霞 Publish Time: 2019-05-05 Origin:Site
The degree of alcoholysis has an effect on the water solubility, viscosity, adhesion and serosity of the slurry.
1. Water solubility:PVA with fully alcoholysis is poor in water solubility,for example,PVA with Alcoholysis degree more than 99%(Mole fraction) begin to dissolve when it is heated above 90℃;PVA with Alcoholysis degree 97-98% (Mole fraction) begin to dissolve at 80℃,and can be completely dissolved in about 2-3 hours;PVA with Alcoholysis degree 85-88%(Mole fraction) can be dessolved in cold water.
2. Viscosity:Complete alcoholysis PVA,which with alcoholysis degree 98-99%(Molar fraction),has a high viscosity;PVA with alcoholysis degree 87-89%(Molar fraction)has a low viscosity,because it has a good water solubility and has a stronger solvation in water.
3. Adhesiveness: PVA with complete alcoholysis has good adhesion to pure cotton, and partially alcoholated PVA has good adhesion to hydrophobic fibers.
4. In terms of softness, elongation and permeability of the serosa, the partial alcoholysis PVA is superior to the PVA of complete alcoholysis.